Page 1 Page marked by that bookmark. Click the Thumbnails and Page button to open the overview area and display thumbnail images of each document page. Click a thumbnail to go to the page marked by that thumbnail. Copyright TOSHIBA CORPORATION 1995 ALL RIGHTS RESERVED...
Page 2 GENERAL PRECAUTIONS REGARDING THE INSTALLATION AND SERVICE FOR THE COPIER 4560/4570 The installation and service should be done by a qualified service technician. 1. Transportation/Installation • When transporting/installing the copier, use two persons and be sure to use the positions as indicated below.
Page 3 4. Main Service Parts for Safety • The breaker, door switch, fuse, thermostat, thermofuse, thermistor, etc. are particularly important for safety. Be sure to handle/install them properly. 5. Cautionary Labels • During servicing be sure to check the rating plate and the cautionary labels such as “Unplug the power cord during service”, “Hot area”...
Page 4: Specifications • Accessories • Options • Supplies
Copy paper Cassette Duplexing Manual Note Size A3~A5-R A3~A6-R Adjustable to (Ledger~Statement-R) Unfixed, Arbitary sizes Thickness 64~80 64~130 Unit: g/m (Weight) (17~22) (17~34) (Unit: lb.) Special OHP film Toshiba recommended paper etc. Nov. 1997 © TOSHIBA 1 - 1 4560/4570 SPECIFICATIONS...
Page 5 Approx. 3.3sec. (Actual-size A4 or Letter from large capacity feeder) Warm-up time Approx. 240sec. Multiple copying 1~999, keyboard entry Reproduction ratio Actual ratio 100% or 101% (Setting mode) Zoom ratio 50~200% (Multiple reduction and enlargement in 1% steps) 4560/4570 SPECIFICATIONS 1 - 2 Nov. 1997 © TOSHIBA...
Page 6 115 V ~ 60 Hz, 12A For the U.S.A. and Canada 220-240 V ~ 50/60 Hz, 8A For Europe Power consumption 1.5 kW (115 V), 1.7 kW (220 V/240 V) Counter 7-digit total counter Machine size Nov. 1997 © TOSHIBA 1 - 3 4560/4570 SPECIFICATIONS...
Page 7 Sorter staple cartridge STAPLE-400 (For MG-2010, 12) STAPLE-700 (For MG-2015) Work tray KK-2060 Key copy counter MU-8/MU-10 (6 digit) *Options vary according to the destination. 1.4 Supplies Drum OD-4560 Developer D-4560 Toner T-3560 4560/4570 SPECIFICATIONS 1 - 4 Nov. 1997 © TOSHIBA...
Page 8: Outline Of The Machine
16 14 19 18 21 59 56 58 54 32 31 34 Front view (For details of the ADU and RADF , refer to chapter 13, ADU and chapter 18,RADF .) Nov. 1997 © TOSHIBA 2 - 1 4560/4570 GENERAL...
Page 9 Cassette size switch-2 (S15) Magnetic roller Exit/ADU selection gate Leveller (doctor) Exit roller Auto-toner sensor Mixer 1 Exit fan-1 (M7) Mixer 2 Exit fan-2 (M15) Sheet bypass guide Exit switch (S9) 4560/4570 GENERAL 2 - 2 Nov. 1997 © TOSHIBA...
Page 11 Transport roller clutch (CLT6) Transport roller drive belt Cassette feed clutch (CLT3, 5) Optical fan (M6,12, 18) Document motor (M11) Transport motor (M16) Transport roller clutch (CLT7) Transport roller clutch (CLT1) 4560/4570 GENERAL 2 - 4 Nov. 1997 © TOSHIBA...
Page 12 2.1.2 Electrical parts layout [A] DC electrical parts (except motors) Front side Rear side Nov. 1997 © TOSHIBA 2 - 5 4560/4570 GENERAL...
Page 13 Paper stop switch 2 (PSTP2-SW) (S16) Aligning switch (PSTPO-SW) (S8) Heat-roller thermistor-2 (THMS2-HTR) Paper stop switch 1 (PSTP1-SW) (S7) Drum thermistor (DRM-THMS) Side door switch (U-COV-SW) (S4) Tray-up switch (T-UP2-SW) (S29) 4560/4570 GENERAL 2 - 6 Nov. 1997 © TOSHIBA...
Page 14 Exit fan (EXIT1-FAN) (M15) Toner motor (TNR-MOT) (M9) Exit fan (EXIT2-FAN) (M7) Document motor (DCM-MOT) (M11) Developer unit fan (DEV-FAN) (M19) Aligning motor (RGT-MOT) (M17) Transport motor (FEED-MOT) (M16) Tray-up motor-2 (T-UP2-MOT) (M14) Nov. 1997 © TOSHIBA 2 - 7 4560/4570 GENERAL...
Page 15 Main switch (MAIN-SW) (S1) Exposure lamp (EXPO-LAMP) Lamp regulator PC board (PWA-LRG) Thermofuse (FU-EXPO) Heater lamp (HTR-LAMP) Fuse PC board (PWA-FUS) (Option) Damp heater L (D-HTR-L) (Option) Damp heater U2 (D-HTR-U2) (Option) Thermostat (K-THERMO) 4560/4570 GENERAL 2 - 8 Nov. 1997 © TOSHIBA...
Page 16 Drives transport roller IC motor (Transport motor) RGT-MOT (Aligning motor) Drives aligning roller Pulse motor OPT2-FAN-R (Optical fan-R2) Cools the optical system IC motor: DEV-FAN (Developer fan) Developer unit suction IC motor Nov. 1997 © TOSHIBA 2 - 9 4560/4570 GENERAL...
Page 17 Drum separation claw drive (Drum separation claw solenoid) (3) Counters Parts list Symbol Code name Function Remarks Page Item T-CTR (Total counter) Total counter 7-digit K-CTR (Key-copy counter) Individual counter 6-digit (option) 4560/4570 GENERAL 2 - 10 Nov. 1997 © TOSHIBA...
Page 18 Detects paper in front of the lower Photointerruptor (Paper stop switch-2) transport roller PTN-SW Detects open/closed condition of Photointerruptor (Platen switch) the platen cover T-UP2-SW Detects the position of the lower Photointerruptor (Tray-up-2 switch) cassette tray Nov. 1997 © TOSHIBA 2 - 11 4560/4570 GENERAL...
Page 19 (LED eraser array PC board) during reduction PWA-ERS Discharge lamp (Discharge lamp PC board) PWA-AES Reads dark/light of the original (Automatic exposure PC board) PWA-FUS (Fuse PC board) Fuse for the damp heater circuit 4560/4570 GENERAL 2 - 12 Nov. 1997 © TOSHIBA...
Page 20 (Heat-roller thermistor-1) THMS2 THMS2-HTR Detects the temperature of the heat roller (Heat-roller thermistor-2) THERMO K-THERMO Prevents abnormal heating of heat roller (Thermostat) FU-EXPO (Thermofuse) Prevents abnormal heating of the exposure lamp Nov. 1997 © TOSHIBA 2 - 13 4560/4570 GENERAL...
Page 21 2.3 Wire Harness Location Diagram [A] Location diagram for upper unit To Lower Unit J239 J209 J544 J541 J201 J542 J545 D-HTR-U1 J546 J229 J203 To Lower Unit 4560/4570 GENERAL 2 - 14 Nov. 1997 © TOSHIBA...
Page 22 [B] Location diagram for lower unit J526 J524 J235 J523 J525 J270 J222 J208 J277 J278 J551 J234 J225 J226 J233 J511 J547 J155 J312 J224 Nov. 1997 © TOSHIBA 2 - 15 4560/4570 GENERAL...
Page 23 [E] Feed cover (left and right) Loosen Right feed cover (1) Remove the paper feed cover. (2) When removing the left feed cover, open the front cover. (3) Remove the screws (2 on each side). 4560/4570 GENERAL 2 - 16 Nov. 1997 © TOSHIBA...
Page 24 Left top cover (exit side) (1) Remove 2 screws. [K] Glass fix (1) Remove 2 screws. Upper inner cover (1) Remove the process unit. (2) Remove 3 screws. Upper inner cover Nov. 1997 © TOSHIBA 2 - 17 4560/4570 GENERAL...
Page 25 (2) Remove the door switch cover (1 screw). Door switch cover Fuser connector cover [O] Lower inner cover (1) Remove the toner bag. Lower inner cover (2) Remove the middle inner cover. (3) Remove 1 screw. 4560/4570 GENERAL 2 - 18 Nov. 1997 © TOSHIBA...
Page 26 Connector bracket Connector [C] Lamp regulator PC board (PWA-LRG) (1) Remove the upper rear cover. (2) Remove 2 connectors. (3) Remove the lamp regulator PC board (4 locking supports). PWA-LRG Connector Nov. 1997 © TOSHIBA 2 - 19 4560/4570 GENERAL...
Page 27 (2) Remove the bracket for the logic PC board (3 screws). Remove the connector J535 on the PS-ACC. (3) Remove the bracket for the ADU drawer con- nector (2 screws). Bracket for PWA-LGC ADU drawer connector bracket 4560/4570 GENERAL 2 - 20 Nov. 1997 © TOSHIBA...
Page 28: Copying Process
9 Discharge lamp : Discharges any remaining 5 Transfer : Transfers the visible image charge from the drum. from the drum onto the transfer (copy) sheet. Nov. 1997 © TOSHIBA 3 - 1 4560/4570 PROCESS...
Page 29 3.2 Comparison with the 2060/2860 of Copying Process Conditions Process 2060/2860 4560/4570 1. Drum OD-2060 (OPC ø60) OD-4560 (OPC ø60) (1) Sensitivity Highly sensitized drum (2) Charger grid voltage DC –635V (2)–705 V DC Scolotron system Output adjustable by using the digital keys 2.
Page 30 • 1030W (200V series) • 1100W (220/240V) (2) Cleaning Cleaning with blade and (2) Cleaning with (cleaning) felt roller silicon-impregnated roller and silicon-impregnated roller (3) Heater-temperature control ON/OFF control by thermistor 11. Control Microcomputer Nov. 1997 © TOSHIBA 3 - 3 4560/4570 PROCESS...
Page 31: Copier Operation
When there is no key input for a set amount of time, the copy quantity “1” will be shown, the reproduction ratio will indicate “actual size”, and the exposure will be set at automatic. Nov. 1997 © TOSHIBA 4 - 1...
Page 32 • Exit switch (S9) detects the passing of the paper trailing edge. • Main motor (M1), transfer and separation chargers, transfer bias, discharge lamp, and LED eraser array are turned OFF. 4560/4570 OPERATION 4 - 2 Nov. 1997 © TOSHIBA...
Page 33 • Optical fan motors (M6, M12, M18) and developer unit fan (M19) stop, and exit fan motors (M7, M15) rotate at low speed. • Carriages and indicators move to the position indicating copy area. • The copier enters the standby mode. Nov. 1997 © TOSHIBA 4 - 3 4560/4570 OPERATION...
Page 34 Timing chart for two A4 actual-size cassette feedings 0.10 4.97 FEED-MOT 0.50 4.97 6.47 6.51 MAIN-MOT 0.72 1.13 1.25 2.11 2.50 2.57 3.42 3.82 1.32 2.23 2.64 3.54 0.85 2.08 2.17 3.40 EXPO 1.17 2.03 2.49 3.35 HVT-M 0.50 2.41 2.96 3.73 Transfer...
Page 35 (3) After interrupt copying is terminated, when the INTERRUPT key is pressed again, the interrupt LED goes OFF and the copier returns to the conditions before the interruption. (4) PRINT key is pressed The copying operation before the interruption is resumed. Nov. 1997 © TOSHIBA 4 - 5 4560/4570 OPERATION...
Page 36: Fault Detection
When the cassette is installed but there is no paper in the cassette. Signal sent to control circuit. The ADD PAPER display will flash. * The PRINT key will not function. 4560/4570 OPERATION 4 - 6 Nov. 1997 © TOSHIBA...
Page 37 The tray motor stops. • During copying, when the empty switch goes OFF despite the tray-up switch being ON It is determined there is no paper. “ADD PAPER” is displayed. Copying stops. Nov. 1997 © TOSHIBA 4 - 7 4560/4570 OPERATION...
Page 38 * When the exit switch (S9) has not come Exit switch ON after 1.313 seconds have elapsed. Timer The CLEAR PAPER symbol (E01) ap- 1.313 sec pears and copying will stop. CLEAR PAPER (E01) 4560/4570 OPERATION 4 - 8 Nov. 1997 © TOSHIBA...
Page 39 After the feed clutch is turned ON, if the paper stop switch (S16) does not come ON within a fixed time. Paper misfeeding (E11) • During paper stacking in the ADU: If the ADU jam switch (SA4) does not detect any paper at the fixed timing Paper misfeeding (E08) Nov. 1997 © TOSHIBA 4 - 9 4560/4570 OPERATION...
Page 40 If the CLEAR/STOP key and the “8” key are pressed simultaneously when the SERVICE CALL symbol is flashing, one of the error codes will appear on the message display. For the contents of the error codes, refer to the “SERVICE HANDBOOK”. 4560/4570 OPERATION 4 - 10 Nov. 1997 © TOSHIBA...
Page 41: Flow Charts
Heater lamp HTR ON ü ï • SCN-MOT ï • LNS-MOT ï • MRR-MOT ý Start initialization • DCM-MOT ï • STOP-MOT ï • GUIDE-MOT ï þ P-STP-SW EXIT-SW ON? ADU-JAM-SW Paper jam "E03" Nov. 1997 © TOSHIBA 4 - 11 4560/4570 OPERATION...
Page 42 “C21”or “C22” or “C23” Is heat roller pre-running sufficient for fixing? Is the Main motor ON thermistor Pre-running operation open? starts Service call Have 15 sec. “C41” passed? Main motor OFF Pre-running stops READY 4560/4570 OPERATION 4 - 12 Nov. 1997 © TOSHIBA...
Page 43 Aligning motor OFF Carriage retreats to home position Is number of remaining copies zero? Copying area indicated Exit switch Process control end check 1 Optical section control end "E01" Paper jam Nov. 1997 © TOSHIBA 4 - 13 4560/4570 OPERATION...
Page 44 Exit switch Paper jam check 2 “E02” Transfer changer OFF Separation charger OFF Discharge lamp OFF Drum rotation reversed Standby 4560/4570 OPERATION 4 - 14 Nov. 1997 © TOSHIBA...
Page 45: Display Unit
COPY SYZE 200% TIMER ENERGYSAVER INTERRUPT 100% HELP PHOTO 8 8 8 8 8 0 0 UNIVERSAL CLEAR/STOP LIGHT AUTO DARK PRINT Arrangement of the control panel Details of the display panel Nov. 1997 © TOSHIBA 5 - 1 4560/4570 DISPLAY...
Page 46: Items Shown On The Display Panel
ADF single-sided copying or when not using the ADF. Timer OFF Released by pressing the PRINT • No message is displayed in the dis- key. play panel except for the timer LED. Fig. 2.1 4560/4570 DISPLAY 5 - 2 Nov. 1997 © TOSHIBA...
Page 47: Add Paper
TONER the toner bag is full (see Fig.2.2- Canceled after the toner bag is re- 1 D ). placed and the front cover is closed. The copier stops. Fig. 2.2-1 Nov. 1997 © TOSHIBA 5 - 3 4560/4570 DISPLAY...
Page 48 (see the front cover. Fig.2.2-2 E ) Paper jam in ADU (see Fig.2.2-2 Open the front cover and gently re- MISFEED IN move the jammed paper. DUPLEXER Fig. 2.2-2 4560/4570 DISPLAY 5 - 4 Nov. 1997 © TOSHIBA...
Page 49 TIME FOR PERI- • This message is displayed when riodic maintenanace. ODIC MAINTE- the copier is ready for periodic NANCE CALL FOR maintenance. SERVICE • Copies can be made. Fig. 2.2-3 Nov. 1997 © TOSHIBA 5 - 5 4560/4570 DISPLAY...
Page 50 When not copying ..When pressed once, the copy quantity indicator returns to “1”. (4) During copying, avoid sheet bypass feeding because of possible paper jamming. Note: The interrupt mode will be automatically canceled when the machine is not used for 45 seconds. 4560/4570 DISPLAY 5 - 6 Nov. 1997 © TOSHIBA...
Page 51: Description Of Operation
320 x 240 dots display area, driver LSI, frame, printed circuit board and side-type CFL backlight. *STN:Super Twisted Nematic (2) Block diagram FRAME LOAD LCD PANEL D.OFF 320 x 240 DOTS power supply Transparent SW Fig. 4.1-2 Nov. 1997 © TOSHIBA 5 - 7 4560/4570 DISPLAY...
Page 52: Lcd Controller
The LCD controller then sends the data to the LCD. AD15 Display synchronous clock Display LCD controller PNL-CPU Fig. 4.1-3 Data Transmission Method 1/tF 1/tF FRAME LOAD FRAME LOAD CP x(320/4) pulses D0-D3 4560/4570 DISPLAY 5 - 8 Nov. 1997 © TOSHIBA...
Page 53 When DSPON0 signal becomes “L” level, transistor Q3 is turned ON. Further, when IC1 pin16 (D8) becomes “L ” level, current flows from +5VD to LP6 (APS) through the transistor. In this way LP6 (APS) lights up. Nov. 1997 © TOSHIBA 5 - 9 4560/4570 DISPLAY...
Page 54 LERST LTL433G EXPO4 LAST LTL433G EXPO3 LTL433G EXPO2 LTL433G EXPO1 LTL16KG AUTO LTL16KG PHOT0 [VDD] [VSSL] LTL16KG TIMER [VSSD] [VSSD] LTL16KG [VSSD] [VSSD] LTL16KG (14.2~4 Display Circuit (PWA-PNL, KEY1, KEY2) ) 4560/4570 DISPLAY 5 - 10 Nov. 1997 © TOSHIBA...
Page 55 13 FC All clear IC1-25 14 EXPO9 Exposure display 9 (D MAX.) IC1-25 For the DSP-ON-0 signal, LEDs and ICs on PWA-KEY1 For the DSP-ON-1 signal, LEDs and ICs on PWA-KEY2 Nov. 1997 © TOSHIBA 5 - 11 4560/4570 DISPLAY...
Page 56: Construction Of Drive System
Timing pulley (G28 / TP20) Timing pulley Upper cassette feed roller (Clutch / G28) (TP20 / G28) Feed motor (G10) Belt (72 pitch) Lower cassette feed roller (Clutch / G28) Drive system (Rear side view) Nov. 1997 © TOSHIBA 6 - 1 4560/4570 DRIVE...
Page 57: Disassembly And Replacement
Connector (1) Remove the wire harness from the M band of the clamshell fulcrum bracket. (2) Remove the clamshell fulcrum drive unit (1 connector and 3 screws). Clamshell fulcrum drive unit 4560/4570 DRIVE 6 - 2 Nov. 1997 © TOSHIBA...
Page 58 Drum drive gear Manual feed drive gear & assistant drive gear Fuser drive gear [D] Feed drive unit Remove the lower frame reinforcement bracket (3 screws). Lower frame reinforcement bracket Nov. 1997 © TOSHIBA 6 - 3 4560/4570 DRIVE...
Page 59 (4) Remove 2 belts . (5) Remove the stop ring, one-way clutch and pulley and then take out one clutch (setscrew). Then remove one more clutch. Stop ring One-way clutch Pulley clutch Belt 4560/4570 DRIVE 6 - 4 Nov. 1997 © TOSHIBA...
Page 60 Remove the clutch bracket (1 screw). Clutch bracket [E] Aligning motor Remove the aligning motor (1 connector and 3 screws). Connector Aligning motor Nov. 1997 © TOSHIBA 6 - 5 4560/4570 DRIVE...
Page 61: Motor Drive
OK signal to the LGC. (“L” level). When the MOT-BRK from LGC enters “L” level, the motor rotation is braked, and when the MOT-ON signal enters “H” level, the main motor stops. 4560/4570 DRIVE 6 - 6 Nov. 1997 © TOSHIBA...
Page 62 MOT-BRK Brake OFF Brake ON Main motor OFF Main motor ON MAINMOT-ON FEEDMTR-ON Transport motor ON Transport motor OFF * The signal names indicate a level in the connector J43, respectively. Nov. 1997 © TOSHIBA 6 - 7 4560/4570 DRIVE...
Page 63: Optical System
Original width indicator Lens motor Scanning motor Optical fan Mirror 6 Original glass Carriage 1 Mirror motor Carriage 2 Lens unit Mirror unit Slit glass Drum Optical system (front view) Nov. 1997 © TOSHIBA 7 - 1 4560/4570 OPTICAL...
Page 64 The light source for exposing the original to light. b. Reflector The reflection plate for using the exposure lamp effectively. The sub-reflector is slit for optical path width cutting. Original Glass Reflector Sub-reflector Exposure lamp Mirror 1 4560/4570 OPTICAL 7 - 2 Nov. 1997 © TOSHIBA...
Page 65 This is also scanned by the scanning motor in the same way as carriage 1. The scanning speed is half that of carriage 1. (The scanning distance is also half.) Mirror 2 Mirror 3 Carriage 2 Nov. 1997 © TOSHIBA 7 - 3 4560/4570 OPTICAL...
Page 66 When the distance of the light path is equal between the original surface and the lens focus and the lens focus and the drum surface, actual-size copying is obtained. When the former is longer, reproduction copying is performed, and when shorter, enlargement copying. Mirror 5 Mirror 4 Mirror unit 4560/4570 OPTICAL 7 - 4 Nov. 1997 © TOSHIBA...
Page 67 The indicator is driven by the document motor. The original range is indicated with the copy-area indicator and orange line on carriage 1. Carriage 1 Original range where a copy Copy area can be made indicator Original scale Original glass Nov. 1997 © TOSHIBA 7 - 5 4560/4570 OPTICAL...
Page 68: Description Of Operation
Carriage 1 and 2 are first moved to home position. The home position is detected when carriage 1 passes the home switch. When the PRINT key is pressed, carriages 1 and 2 scan the original. 7.3.2 Mirror motor/lens motor Mirror unit Mirror motor Lens motor 4560/4570 OPTICAL 7 - 6 Nov. 1997 © TOSHIBA...
Page 69 When the paper size or reproduction ratio is changed, the indicators are positioned for the specified size and the original setting position is indicated on the glass. 7.3.4 Optical fan motor Stops during standby and rotates during copying, and cools the optical section. Nov. 1997 © TOSHIBA 7 - 7 4560/4570 OPTICAL...
Page 70 The circuit configuration on the inside of the IC is composed of each phase excitation switching section (IC2), driver (F1, F2), comparator (IC1), and current detection resistor (R7). The following explains the circuit operation when the A phase is excited. 4560/4570 OPTICAL 7 - 8 Nov. 1997 © TOSHIBA...
Page 71 The limit of winding value is changed in high torque and low torque by the D/A output. In low torque the current is lower, in high torque the current is higher. Low torque : I = 1.2 (A) High torque: I = 1.35 (A) Nov. 1997 © TOSHIBA 7 - 9 4560/4570 OPTICAL...
Page 72: Equivalent Circuit
Waveform time chart of each section øIN 0(A) Ec: C1 discharge voltage 0(V) 0(A) 0(A) Equivalent circuit øA øA Vref Vref øB øB — — — 4560/4570 OPTICAL 7 - 10 Nov. 1997 © TOSHIBA...
Page 73 QA, QB, QA, and QB. An ON/OFF combination of the transistor is switched. The combination of the current flowing phases is switched. The motor rotates. Nov. 1997 © TOSHIBA 7 - 11 4560/4570 OPTICAL...
Page 74 PWM signal. Original Exposure lamp Lamp regulator Automatic exposure sensor circuit AES signal PWA-AES *PWM signal Arithmetic and control unit PWA-LGC Gate array (IC21) Control Panel Main CPU (IC35) Key input (IC37) 4560/4570 OPTICAL 7 - 12 Nov. 1997 © TOSHIBA...
Page 75 170/85 V approx. 76/38 V approx. Range of actual use 40 % 90 % PWM pulse duty ratio [%] 100 V series 200 V series [Characteristic curve of the lamp regulator] Nov. 1997 © TOSHIBA 7 - 13 4560/4570 OPTICAL...
Page 76 The data resulting from the computation performed by the CPU described in item 3 above, are converted to PWM signals by the gate array, and output to J2-A17 via IC18 from the PWM output terminal of the gate array. Gate array PS-LRG 7407 IC18 Lamp regulator 4560/4570 OPTICAL 7 - 14 Nov. 1997 © TOSHIBA...
Page 77 Makes the voltage at both ends of the lamp constant. TRIAC Trigger pulse (PWM) generation Reference pulse signal Pulse signal circuit setting circuit Pulse Waveform Differential waveform rectifying circuit amplifier rectifying circuit Nov. 1997 © TOSHIBA 7 - 15 4560/4570 OPTICAL...
Page 78: Automatic Original-Size Detection Circuit
(IC21) and the main CPU (IC35). IC21 and IC35 are on the logic PC board. IN32 APS-R IN31 Gate array Reflecting photosensor APS-C IN30 IC21 APS-F APS-2 Reflecting multi-beam Main CPU APS-0 sensor IC35 APS-1 PWA-LGC Original size detection circuit 4560/4570 OPTICAL 7 - 16 Nov. 1997 © TOSHIBA...
Page 79 Paper exit side APS-1 APS-0 APS-R “•” are detection points for each sensor Sensor detection points [LT series] LT-R ST-R APS-2 APS-C ST-R APS-F APS-1 ST, LT-R, LG APS-0 LT, LD Nov. 1997 © TOSHIBA 7 - 17 4560/4570 OPTICAL...
Page 80 No original ST-R LT-R Note: Original detected Original not detected H and L whichever is sufficient Port input level (Main CPU: IC35, Gate array: IC21) Output level of each sensor 4560/4570 OPTICAL 7 - 18 Nov. 1997 © TOSHIBA...
Page 81: Disassembly And Replacement
Automatic exposure sensor unit Remove the automatic exposure sensor unit Connector (1 screw). Remove the connector (1) and the screws (2) and take off the PC board. Paper feed side Black sheet Nov. 1997 © TOSHIBA 7 - 19 4560/4570 OPTICAL...
Page 82 Remove the connector (2) and the screws (4). Connector 7.7.5 Lens motor/mirror motor Mirror motor Remove the optical cover. Harness cover Remove each motor (2 screws each). Lens motor Remove the each connector. 4560/4570 OPTICAL 7 - 20 Nov. 1997 © TOSHIBA...
Page 83 Thermal fuse Lamp Exit side Projection Reflector [Front side] [Rear side] To replace the thermofuse, remove the 2 screws. Nov. 1997 © TOSHIBA 7 - 21 4560/4570 OPTICAL...
Page 84 6. At that position, while pressing the scan- ning motor to the machine frame, tighten the screw A (when tightening the screw A, be careful not to move the scanning motor). 7. Tighten the screw B. 4560/4570 OPTICAL 7 - 22 Nov. 1997 © TOSHIBA...
Page 85 Connector Claw 7.7.11 Platen switch Remove the upper rear cover and the rear top Platen switch cover (4 screws). Remove the platen switch unit (2 screws). Nov. 1997 © TOSHIBA 7 - 23 4560/4570 OPTICAL...
Page 86 Remove the cable guide (1 screw). Cable guide Remove the 2 brackets which attach carriage Wire fixing bracket 1 to the wire (1 screw each). [Front side] 4560/4570 OPTICAL 7 - 24 Nov. 1997 © TOSHIBA...
Page 87 Disconnect the connector. Remove the earth wire (1 screw). Connector Cable holder Earth wire Remove the cable for carriage 1 from the ca- Cable holder ble holder of carriage 2. Carriage 2 Cable Nov. 1997 © TOSHIBA 7 - 25 4560/4570 OPTICAL...
Page 88 Remove the upper exit cover and the left top cover. Remove the cable guide (1 screw). Remove the lens/mirror drive unit. Remove the indicator unit. Remove the tension bracket (1 screw). Tension bracket 4560/4570 OPTICAL 7 - 26 Nov. 1997 © TOSHIBA...
Page 89 Mirror unit and mirrors 4 and 5 Remove the lens unit. Remove the mirror unit from the lens/mirror Mirror 5 shaft. Remove the plate springs (2 each) to take out the mirrors. Mirror 4 Mirror unit Nov. 1997 © TOSHIBA 7 - 27 4560/4570 OPTICAL...
Page 90 Remove the cable guide (1 screw). Glass stay (4) Remove the cable holder and the earth wire (1 screw). (5) Disconnect the connector from the rear side and remove the 2 screws. Lens/mirror drive unit 4560/4570 OPTICAL 7 - 28 Nov. 1997 © TOSHIBA...
Page 91 (2) Remove the lens/mirror drive unit. (3) Set the wire holder jig (Large) to the wire drive pulley on the front and rear. Wire holder jig (Large) Wire drive pulley (rear side) Wire holder jig (Large) Nov. 1997 © TOSHIBA 7 - 29 4560/4570 OPTICAL...
Page 92 [Feed side] Wire holder jig (Small) [Exit side] Remove the tension spring from the hook on Tension spring Tension spring the front and rear side. Hook Hook [Rear side] [Front side] 4560/4570 OPTICAL 7 - 30 Nov. 1997 © TOSHIBA...
Page 93 (2) Pull the ozone filter out. Note: When replacing it with a new filter, be care- ful not to crush or otherwise damage it with your fingers. Upper exit roller unit Nov. 1997 © TOSHIBA 7 - 31 4560/4570 OPTICAL...
Page 94 Screw 7.7.23 Carriage drive wire Remove carriages 1 and 2. Remove the scanning motor and the belt. Remove the belt drive pulley (1 screw). Remove the fan unit. Belt drive pulley 4560/4570 OPTICAL 7 - 32 Nov. 1997 © TOSHIBA...
Page 95 [Front side] to twist while winding it.) 2. Install the wire holder jig (Large) from the End “D” 5 turns 1 turns side indicated with an arrow. Wire holder jig (Large) Nov. 1997 © TOSHIBA 7 - 33 4560/4570 OPTICAL...
Page 96 Pulley 2 in the wire holder jig (Small). Next, re- wind on pulley 2 on carriage 2 from the bottom to the top. Carriage 2 Exit side pulley [Front side] 4560/4570 OPTICAL 7 - 34 Nov. 1997 © TOSHIBA...
Page 97 Tension spring on the right, and hang the tension spring Hook on the hook. 7.7.24 Slit glass, mirror 6 cover [Front side] Remove the process unit. Mirror 6 cover hook [Rear side] Nov. 1997 © TOSHIBA 7 - 35 4560/4570 OPTICAL...
Page 98 (3) Take out the mirror 6 bracket in the direction of the arrow. Mirror 6 bracket hooks (4) Remove the 2 plate springs and take out mir- ror 6. Plate spring Mirror 6 Installation hole Plate spring 4560/4570 OPTICAL 7 - 36 Nov. 1997 © TOSHIBA...
Page 99 7.7.27 Upper damp heater-2 Remove the original glass. Remove the upper exit cover. Remove the connector. Remove the screw and take out the upper damp heater-2 Connector Upper dump hearter-2 Nov. 1997 © TOSHIBA 7 - 37 4560/4570 OPTICAL...
Page 100: Paper Feeding Section
This sensor detects paper in the paper cassette by the use of the actuator. When there is no paper in the cassette, the actuator intercepts the transmitted light in the sensor, causing a paper-empty situ- ation to be detected. Nov. 1997 © TOSHIBA 8 - 1 4560/4570 FEEDER...
Page 101 Paper stop switch 1 Separation pad Transport roller 1 Aligning switch Lower aligning roller Paper stop switch 2 Feed roller Separation roller Pick-up roller Paper feeding section sectional view (Front side) 4560/4570 FEEDER 8 - 2 Nov. 1997 © TOSHIBA...
Page 102 Feed motor (G10) Lower transport roller (Clutch / G28) Belt (72 pitch) Lower cassette feed roller Timing pulley (Clutch / G28) (TP20 / G28) Paper feeding section drive system (Rear side) Nov. 1997 © TOSHIBA 8 - 3 4560/4570 FEEDER...
Page 103 When the cassette is inserted, the cassette lever d pushes up the lever a in the direction A. Then the pick-up roller is caused to fall by its own weight due to the link mechanism of the levers b and c . 4560/4570 FEEDER 8 - 4 Nov. 1997 © TOSHIBA...
Page 104 1 is transported in the direction of the arrow ( ) and the paper 2 is not transported any further by the separation roller. Nov. 1997 © TOSHIBA 8 - 5 4560/4570 FEEDER...
Page 105 The leading edge of the paper turns ON the aligning switch and is aligned at the aligning roller. • The transport clutch is turned OFF and the transport roller is stopped. • The aligning motor is turned ON and the paper is transported to the transfer process. 4560/4570 FEEDER 8 - 6 Nov. 1997 © TOSHIBA...
Page 106: Motor Drive Circuit
ON and OFF based on the signals from the microcomputer. For the control, refer to the table below. Input Output M (+) M (–) Description BRAKE CCW (upward) CW (downward) OFF (high impedance) STOP Nov. 1997 © TOSHIBA 8 - 7 4560/4570 FEEDER...
Page 107: Disassembly And Replacement
(4) Remove the stop ring on the hinge shaft on the front side. (5) Remove the manual feed unit from the hinge shaft on the front side while sliding it towards the rear side. Stop ring 4560/4570 FEEDER 8 - 8 Nov. 1997 © TOSHIBA...
Page 108 4. Check that no oil etc. has adhered to the surface of the timing belts, pulleys and rollers. 5. Make sure of the roller orientation. Paper feed roller Paper Pick-up roller Separation pad Nov. 1997 © TOSHIBA 8 - 9 4560/4570 FEEDER...
Page 109 Separation pad Separation pad bracket (3) Remove the spring and then the separation Spring pad. Note: Be careful not to damage the manual feed switch at the time of installation. Separation pad 4560/4570 FEEDER 8 - 10 Nov. 1997 © TOSHIBA...
Page 110 (5) Lift up the aligning unit to the direction of the arrow A and remove it. Pulley Note: When installing the aligning unit, securely Belt Connector hook the belt to the pulley. Developer bias harness Connector Pulley Aligning unit Nov. 1997 © TOSHIBA 8 - 11 4560/4570 FEEDER...
Page 111 (5) Lift up the aligning rollers (upper and lower) to remove them. Pre-aligning guide Aligning roller (U) Aligning pressure spring Bush (U) Bush (L) [Front side] Aligning roller (U) Pressure spring Bush (U) Aligning roller (L) Bush (L) [Rear side] 4560/4570 FEEDER 8 - 12 Nov. 1997 © TOSHIBA...
Page 112 (8) Disconnect the paper size detection switch harness from the switch. (9) Remove the two paper feed unit fixing screws, and pull out the unit toward the front side. Harness Paper feed unit Nov. 1997 © TOSHIBA 8 - 13 4560/4570 FEEDER...
Page 113 A and pull out the bush from the shaft. Bush (5) Remove the stop-ring and pick-up arm from the shaft and pull out the feed roller. One-way clutch (CLUTCH-6-R) Pick-up roller Cassette feed unit 4560/4570 FEEDER 8 - 14 Nov. 1997 © TOSHIBA...
Page 114 5. Make sure no oil gets on the surface of the timing belt, pulley and roller. 6. Make sure of the roller orientation. Paper feed roller Paper Pick-up roller Separation roller Nov. 1997 © TOSHIBA 8 - 15 4560/4570 FEEDER...
Page 115: Drum-Related Section
Construction of the parts is as follows. • Upper unit Drum Main charger High-voltage transformer unit LED eraser array, discharge lamp • Lower unit Transfer/separation charger High-voltage transformer unit Transfer guide bias Transport-belt unit Toner suction duct Nov. 1997 © TOSHIBA 9 - 1 4560/4570 DRUM...
Page 116: Drive Mechanism
Drum gear (teeth: 72) Drum (inside of the cleaner unit) • Transport belt drive Gear (teeth: 22) Copier rear side (inside of the rear frame) Transport belt gear (teeth: 14) Transport belt 4560/4570 DRUM 9 - 2 Nov. 1997 © TOSHIBA...
Page 117 Separates the copy paper with toner from the drum (high-voltage transformer: AC). [C] Transport belt Transports the paper, which has been transferred and separated from the drum, to the fuser unit. Nov. 1997 © TOSHIBA 9 - 3 4560/4570 DRUM...
Page 118 [D] Toner suction duct Sucks in the toner that has been dispersed from the developer unit. Toner recovery duct 4560/4570 DRUM 9 - 4 Nov. 1997 © TOSHIBA...
Page 119 Disconnect the developer unit from the cleaner section. Notes: 1. Be careful not to damage the drum. 2. Check that the drum shaft is in the cleaner unit. Rear side lever Front side lever [Front side] [Rear side] Nov. 1997 © TOSHIBA 9 - 5 4560/4570 DRUM...
Page 120 (1) When installing the process unit into the copier, align the two guides. Finally, insert the positioning pin into the upper frame hole pushing the portion indicating the arrow. Guide Positioning pin 4560/4570 DRUM 9 - 6 Nov. 1997 © TOSHIBA...
Page 121 LED eraser array (1) Remove the process unit and the rear cover (U). (2) Disconnect the connector. (3) Remove one screw and pull it to the front. LED eraser array Discharge lamp Nov. 1997 © TOSHIBA 9 - 7 4560/4570 DRUM...
Page 122 9.4.4 Main charger (1) Remove the holder charger. Holder charger (2) Remove the main charger in the order of 1 – 4560/4570 DRUM 9 - 8 Nov. 1997 © TOSHIBA...
Page 123 Spring hanger Total length: 353 mm Tungsten wire: ø0.06 mm V-groove (1) Remove the terminal cover at the front and rear. Terminal cover [Front side] V-groove Terminal (R) Terminal cover [Rear side] Nov. 1997 © TOSHIBA 9 - 9 4560/4570 DRUM...
Page 124 (1) Remove the charge wire. (2) Remove the rear terminal. (3) Move the cleaning pad to the rear side. (4) Remove the pad holder snap from the shaft. Pad holder [Rear side] 4560/4570 DRUM 9 - 10 Nov. 1997 © TOSHIBA...
Page 125 2. When moved to the rear, the pads (2 pcs.) should be clearly away from the wires. Cleaning pad 9.4.5 Transfer/separation charger Transfer/separation charger (1) Remove 1 screw. (2) Remove 1 connector. Transfer/separation charger Connector Nov. 1997 © TOSHIBA 9 - 11 4560/4570 DRUM...
Page 126 (1) Remove the terminal cover on the front and rear. In the case of the separation charger, remove the supporter. Charge wire Terminal Charge wire terminal [Front side] Charge wire terminal Charge wire V-groove Spring [Rear side] 4560/4570 DRUM 9 - 12 Nov. 1997 © TOSHIBA...
Page 127 Notes: 1. When reassembling, pay attention to the direction in which the pad holder faces. Charge wire 2. When moved to the rear, the pads (2 pcs.) should be clearly away from the wires. Cleaning pad Nov. 1997 © TOSHIBA 9 - 13 4560/4570 DRUM...
Page 128 (1) Remove the toner bag. Transfer/separation Transport belt unit charger (2) Remove the screw, disconnect the 2 connec- Transport belt unit tors on the front side, and take out the trans- port belt unit. Connectors 4560/4570 DRUM 9 - 14 Nov. 1997 © TOSHIBA...
Page 129 9.4.7 Toner suction duct unit (1) Remove the transfer/separation charger and transport belt unit. (2) Remove the screw and take out the toner suc- tion duct. Toner suction duct Nov. 1997 © TOSHIBA 9 - 15 4560/4570 DRUM...
Page 130 (1) Remove the transfer/separation charger and the transport belt unit. (2) Remove the screw and take out the toner suc- tion duct. Toner suction duct 4560/4570 DRUM 9 - 16 Nov. 1997 © TOSHIBA...
Page 131 (4) Remove the connector and take off the fuse PC board from the lock support. Lower damp heater (5) Pull out the 2 Faston terminals, remove the screw and take off the thermostat. Nov. 1997 © TOSHIBA 9 - 17 4560/4570 DRUM...
Page 132 Outputs control voltage Vc to the charging/transfer/separation/developer-bias transformer. • Charging/transfer/separation/developer-bias transformer generates an output current or voltage proportional to control the voltage Vc. * Adjustment of control voltage Vc (adjustment data change) is performed in the AJ mode. 4560/4570 DRUM 9 - 18 Nov. 1997 © TOSHIBA...
Page 133 J7-2 HVMVREF J7-7 HVTVREF J7-5 HVACVREF Converter J7-1 BIASVREF Gate IC46 Array IC21 MAIN BC-RAM IC35 IC37 Nov. 1997 © TOSHIBA 9 - 19 4560/4570 DRUM...
Page 134: Developer Unit
10. DEVELOPER UNIT 10.1 Construction Top cover Upper cover Magnetic roller Drum Leveler Mixer 1 Mixer 2 Magnetic roller Auto-toner sensor Front side sectional view Nov. 1997 © TOSHIBA 10 - 1 4560/4570 DEVELOPER...
Page 135: Developer Drive
Mixer 1 Mixer 2 Pulley P24 Timing belt (3M132) Magnetic roller Sleeve drive pulley Guide roller Developer drive gear G27 Developer drive gear G26 (Copier) Developer drive gear G27 [Rear side] 4560/4570 DEVELOPER 10 - 2 Nov. 1997 © TOSHIBA...
Page 136 Toner cartridge drive motor Drive gear (teeth: 32) Toner cartridge (toner replenishment) Mix toner with mixer 1 and 2. Cartridge drive gear G32 Toner cartridge drive motor Mixer 2 [Front side] Nov. 1997 © TOSHIBA 10 - 3 4560/4570 DEVELOPER...
Page 137 Pouring in developer material (1) Remove the upper cover (2 screws). Upper cover (2) Remove the cap of the developer material bottle. Pour the developer material into the de- veloper unit. 4560/4570 DEVELOPER 10 - 4 Nov. 1997 © TOSHIBA...
Page 138 You can only touch the gear in the range indi- cated in the figure. (4) Install the upper cover. After fully inserting the hooks (four places), fasten with screws. Hook Upper cover Nov. 1997 © TOSHIBA 10 - 5 4560/4570 DEVELOPER...
Page 139 (5) Pay attention to the overlapping between the side seal (front, rear) and the rubber seal. (Be careful when reassembling the upper cover.) The side seal must come between the outer rubber seal and inner one. Outer rubber seal Side seal Inner rubber seal 4560/4570 DEVELOPER 10 - 6 Nov. 1997 © TOSHIBA...
Page 140 2. Take care to avoid the connector becom- ing smeared with developer material when discharging is performed. Nov. 1997 © TOSHIBA 10 - 7 4560/4570 DEVELOPER...
Page 141 (1) Discharge the developer material. (2) Remove the holder bracket (2 screws). Holder bracket (3) Remove the connector from the holder bracket. Connector Holder bracket (4) Remove the nozzle (3 screws). [Front side] 4560/4570 DEVELOPER 10 - 8 Nov. 1997 © TOSHIBA...
Page 142 (6) Replace the guide roller. Guide roller [B] Rear side Plate Coil spring (1) Remove the adjustment plate (1 screw). (2) Remove the plate (4 screws and 1 coil spring). Adjustment plate Nov. 1997 © TOSHIBA 10 - 9 4560/4570 DEVELOPER...
Page 143 (3) Pull out the harness and disconnect the con- nector. Remove the motor unit (1 screw). connector Plate (4) Remove the motor (2 screws). Replace the motor. When the gear is defective, replace the entire unit. 4560/4570 DEVELOPER 10 - 10 Nov. 1997 © TOSHIBA...
Page 144 (1) Discharge the developer material. Leveler (2) Remove the toner holder, nozzle, plate and guide roller. (3) Remove the leveler (2 screws). (4) Remove the sleeve drive pulley. Sleeve drive pulley Nov. 1997 © TOSHIBA 10 - 11 4560/4570 DEVELOPER...
Page 145 Notes: 1. Pay attention to the direction (obverse/ reverse) of the V-ring when reassembling. 2. After reassembly, adjust the polarity po- sition and the doctor sleeve gap accord- ing to the method given in the Service Handbook. V-ring 4560/4570 DEVELOPER 10 - 12 Nov. 1997 © TOSHIBA...
Page 146 The current which was flowing in the motor winding flows via the route of diode D2. It decreases at the rate of the time constant determined by the inductance and resistance of the winding. Nov. 1997 © TOSHIBA 10 - 13 4560/4570 DEVELOPER...
Page 147 Arithmetic and control unit Toner cartridge PWA-LGC Toner Toner motor DA converter Control voltage signal IC46 IC46 M62353(A03) IC35 95C063F Toner density signal Toner sensor Developer unit Developer material BC-RAM IC37 4560/4570 DEVELOPER 10 - 14 Nov. 1997 © TOSHIBA...
Page 148: Cleaner Unit
Drum gear Drum Main charger Toner recovery auger Drum shaft When the main charger has been removed Toner recovery auger Main blade Separation claw Recovery blade When the drum has been removed Nov. 1997 © TOSHIBA 11 - 1 4560/4570 CLEANER...
Page 149: Drive System
11.2 Drive system Front view • Drum/toner recovery auger drive Gear (teeth: 20)-----Rear of machine (inside frame) Drum gear (teeth: 72) Drum Gear (teeth: 23) Toner recovery auger Toner-full switch 4560/4570 CLEANER 11 - 2 Nov. 1997 © TOSHIBA...
Page 150: Description Of Functions
When the toner bag becomes full of recovered toner, the recovery auger is pushed back to- wards the rear, causing the toner-full switch S13 to come on. Manual feed drive gear Fuser drive gear & assistant drive gear Nov. 1997 © TOSHIBA 11 - 3 4560/4570 CLEANER...
Page 151 6. When holding the cleaner unit, do not touch the separation claw lever shaft to avoid bending it. Blade pressure-released cam position Separation claw lever shaft Cleaner unit 4560/4570 CLEANER 11 - 4 Nov. 1997 © TOSHIBA...
Page 152 Gear 11.4.2 Main blade (1) Remove the main charger. (2) Remove the spring. Main blade (3) Remove the 2 screws. When reassembling, secure with the screws in the following order: Spring Nov. 1997 © TOSHIBA 11 - 5 4560/4570 CLEANER...
Page 153 Charger output adjustment block (1) Remove the cleaner unit. (2) Remove the inner cover (upper). (3) Remove the connector of the solenoid. (4) Remove a screw. Connector Charger output adjustment block 4560/4570 CLEANER 11 - 6 Nov. 1997 © TOSHIBA...
Page 154 Dev-unit drive gear (2) Remove the drive unit (5 screws). Drum drive gear (3) Remove the toner-full switch. Toner full switch Manual feed drive gear Fuser drive gear & assistant drive gear Nov. 1997 © TOSHIBA 11 - 7 4560/4570 CLEANER...
Page 155: General Description
The fuser unit comprises the heater lamp, heat roller, pressure roller, separation claws, cleaning felt roller, cleaning roller, thermistor, thermostat, etc. The paper exit unit consists of exit rollers, exit paper guide, etc. Nov. 1997 © TOSHIBA 12 - 1 4560/4570 FUSER...
Page 156: Functions Of Each Part
(4) Heat roller separation claws/pressure roller separation claws By the use of the heat roller separation claws/pressure roller separation claws, the paper which has been fixed to the both heat and pressure rollers is smoothly removed. 4560/4570 FUSER 12 - 2 Nov. 1997 © TOSHIBA...
Page 157 (10) Exit rollers Through the exit rollers, the paper removed by the heat roller separation claws or pressure roller separation claws exits smoothly onto the receiving tray via the ADU exit roller. Nov. 1997 © TOSHIBA 12 - 3 4560/4570 FUSER...
Page 158: Heater Control Circuit
(or replaced), if turning ON the power switch does not cause the heater to energize resulting in a C40 error, check the C40 counter (08-code 89) and reset it to “0”. 4560/4570 FUSER 12 - 4 Nov. 1997 © TOSHIBA...
Page 159 245°C, the second thermistor detects this, causing the heater to be turned OFF immediately regardless of the temperature in the paper-contact area. Nov. 1997 © TOSHIBA 12 - 5...
Page 160 OFF again. After confirming that an abnormal heater condition has occurred, repair the problem and then clear code 89 of the AD ( 0 + 8 ) mode with “0”. After that, you can bring the copier into its normal operating condition. 4560/4570 FUSER 12 - 6 Nov. 1997 © TOSHIBA...
Page 161 (4) Slide the entire unit to the front side, unhook the stud from the copier frame and remove it. 12.5.2 Heater lamp (1) Remove the fuser unit. Fuser cover (2) Remove the fuser cover (2 screws). Nov. 1997 © TOSHIBA 12 - 7 4560/4570 FUSER...
Page 162 (4) Remove the lamp holder bracket at the front [Front side] side (1 screw). Lamp holder bracket (Front side) (5) Remove the lamp holder bracket on the rear [Rear side] side (3 screws). Lamp holder bracket (Rear side) 4560/4570 FUSER 12 - 8 Nov. 1997 © TOSHIBA...
Page 163 (6) Pull the heater lamp out towards the front side. Notes: 1. Do not touch the heater lamp surface di- rectly with your hands. 2. Set the TOSHIBA mark facing the front side. 12.5.3 Heat roller Pressure bracket (1) Remove the heater lamp.
Page 164 12.5.4 Pressure roller Pressure roller separation claw unit (1) Remove the fuser unit. (2) Remove the heat roller. (3) Turn the pressure roller separation claw unit (2 screws, black color). 4560/4570 FUSER 12 - 10 Nov. 1997 © TOSHIBA...
Page 165 Bearing Pressure roller Bearing Pressure lever 12.5.5 Cleaning felt roller, cleaning roller (1) Remove the pressure bracket (2 screws). Cleaning roller (2) Remove the roller by lifting it. Cleaning felt roller Nov. 1997 © TOSHIBA 12 - 11 4560/4570 FUSER...
Page 166 (3) Unscrew 2 screws and take off the thermostat from the holder. Note: When installing, make sure the thermistor Thermostat and thermostat both contact the heat roller surface evenly. Thermistor 4560/4570 FUSER 12 - 12 Nov. 1997 © TOSHIBA...
Page 167 12.5.10 Fuser entrance paper guide (1) Remove the fuser cover (2 screws). (2) Remove the bracket (2 screws). Note: Be careful not to damage the mylar sheets sticked on the bracket. Nov. 1997 © TOSHIBA 12 - 13 4560/4570 FUSER...
Page 168: Automatic Duplexing Unit (Adu)
Paper sizes: 50 sheets stackable: A3, B4, A4, B5, A5, Folio (for Europe) Ledger, Legal, Letter, Computer, Statement (for U.S.A. and Canada) Type of paper: Toshiba-recommended paper 64~80 g/m (17~22 lb) (sheets of paper) Max. number of copies 1~50 sheets...
Page 169: Names Of Various Components
Front-side view Idle rollers Paper guide (U) Gate cover Front cover Jam lever Ground plate spring Motor cover Paper guides End guide Tray End switch Gate arm PC board Gate solenoid 4560/4570 ADU 13 - 2 Nov. 1997 © TOSHIBA...
Page 170: Rear Side View
ADU guide(U) ADU guide(L) Transport rollers Side motor End motor 13.2.2 Rear-side view Drawer connector Nov. 1997 © TOSHIBA 13 - 3 4560/4570 ADU...
Page 171 Stack/feed roller (Main) Pick-up roller ADU motor Feed clutch (Z28) Jam switch Empty switch Separation roller Side switch Stack clutch (Z40) Stack roller 13.2.4 Copier’s exit-side section Gate Exit roller Transport roller 4560/4570 ADU 13 - 4 Nov. 1997 © TOSHIBA...
Page 172 ADU motor Transport roller Side guide Stacking section Side motor Jam switch End guide Empty switch End motor Tray EXIT/ADU selection gate Pickup roller Gate solenoid Stack/feed roller Open guide Separation roller Nov. 1997 © TOSHIBA 13 - 5 4560/4570 ADU...
Page 173 EXIT/ADU selection gate which is already positioned in the direction of exiting, further passing through the exit roller to exit finally into the receiving tray. 4560/4570 ADU 13 - 6 Nov. 1997 © TOSHIBA...
Page 174 When the gate solenoid is turned OFF, the arm is pulled back to its original position by a spring, causing the gate to close, and the copied sheet will exit. Gate Gate solenoid Spring Gate solenoid Nov. 1997 © TOSHIBA 13 - 7 4560/4570 ADU...
Page 175 (2) End guide The end motor rotates corresponding to the size of paper selected, causing the end guide to move to the position specified. 4560/4570 ADU 13 - 8 Nov. 1997 © TOSHIBA...
Page 176 ADU stack/feed roller are rotated in the feeding direction (arrow C ). At this time, the transport rollers do not rotate since a one-way clutch is contained inside of the gear (Z16) on the transport roller shaft. Nov. 1997 © TOSHIBA 13 - 9 4560/4570 ADU...
Page 177 [A] Motor cover and gate cover (1) Remove one screw fastening each cover. Motor cover [B] Lower cover (1) Place the ADU upside down. (2) Remove the 7 screws fastening the cover. 4560/4570 ADU 13 - 10 Nov. 1997 © TOSHIBA...
Page 178 Remove the bracket. (2) Lift the rear side of the unit and pull out the pivot. (3) Take out two screws from the ADU exit unit and remove the vertical transport guide unit. Nov. 1997 © TOSHIBA 13 - 11 4560/4570 ADU...
Page 179 EXIT/ADU selection gate [B] Transport rollers 1, 2 and 3 (1) Take out the upper paper guide by removing its two screws. Upper paper guide 4560/4570 ADU 13 - 12 Nov. 1997 © TOSHIBA...
Page 180 (front and rear, 1 each), push the units to- ward the rear to have the front stud disengaged, and then take out the units toward the front. Stop-ring Open guide unit (upper and lower) Rear side Nov. 1997 © TOSHIBA 13 - 13 4560/4570 ADU...
Page 181 Transport roller 2 Transport roller 3 Timing belt Gear Pulley Guide roller Stop-ring Stop-ring Bush Transport roller 1, front side Bush Stop-ring Roller shaft Transport roller 1, 2, 3, rear side 4560/4570 ADU 13 - 14 Nov. 1997 © TOSHIBA...
Page 182 (5) Remove the four pick-up roller guides from the Bush Stop-ring pick-up roller shaft by pushing them down- ADU pick-up roller ward, and lift the rear end of the shaft. Stacker Nov. 1997 © TOSHIBA 13 - 15 4560/4570 ADU...
Page 183 ADU stack/feed roller toward the inside. (4) Remove the four pick-up roller guides from the pick-up roller shaft by pushing them downward. Then, lift the rear end of the shaft. Stop-ring 4560/4570 ADU 13 - 16 Nov. 1997 © TOSHIBA...
Page 184 Pick-up roller guide Stop-ring Pin Stack/feed roller (sub) Stack/feed roller (main) Bush [E] ADU separation roller (1) Remove the two screws of the ADU separation roller. ADU separation roller Nov. 1997 © TOSHIBA 13 - 17 4560/4570 ADU...
Page 185 (2) Take out the open guide unit (upper and lower) lower) by removing two stop-rings and one snap pin. (3) Remove the motor cover by unscrewing a screw. Paper guide (upper) Motor cover 4560/4570 ADU 13 - 18 Nov. 1997 © TOSHIBA...
Page 186 (5) Move the side guides toward the center. Take ADU Feed unit out the ADU feed unit by unscrewing four screws. Side guides (6) Remove two screws and take out the ADU motor. ADU motor Nov. 1997 © TOSHIBA 13 - 19 4560/4570 ADU...
Page 187 * Make a gap of approx. 0.5 mm between the Gear Align feed clutch and the gear, and also between the stack clutch and the bush. Bush Stack clutch 4560/4570 ADU 13 - 20 Nov. 1997 © TOSHIBA...
Page 188 (3) Unscrew two screws, take out the timing belt, and remove the side motor bracket. (4) The end motor can be removed by the same procedure. Timing belt End motor bracket Nov. 1997 © TOSHIBA 13 - 21 4560/4570 ADU...
Page 189 [A] Jam switch and empty switch Empty switch (1) Remove the ADU feed unit. (2) Remove the switch bracket. (3) Unlatch the claws of the switches. (4) Disconnect the connector. Jam switch Switch bracket 4560/4570 ADU 13 - 22 Nov. 1997 © TOSHIBA...
Page 190 (1) Remove the upper paper guide and the open guide units (upper and lower). (2) Place the ADU upside down and remove the lower cover. (3) Remove the rail guide. Rail guide Nov. 1997 © TOSHIBA 13 - 23 4560/4570 ADU...
Page 191 (4) Disconnect the switch connector and unlatch the claws of the switch. End switch Connector End switch claws 4560/4570 ADU 13 - 24 Nov. 1997 © TOSHIBA...
Page 192 Detects when the ADU cassette runs Semiconductor sensor (Empty switch) out of paper. JAM-SW Detects the passage of paper through Semiconductor sensor (Jam switch) the guide up to the stack section. Nov. 1997 © TOSHIBA 13 - 25 4560/4570 ADU...
Page 193 13.7 Layout for Electrical Parts Drawer connector for connecting with the copier JAM-SW EMP-SW CLT2 STCLT CLT1 FEDCLT Rear side ADU-MOT DM1 SID-SW SA2 SID-MOT END-MOT DM2 END-SW Front side STSOL SOL1 4560/4570 ADU 13 - 26 Nov. 1997 © TOSHIBA...
Page 194: Description Of Operation
ON the copier’s exit switch. The switch is also checked if it is turned OFF within a specified period of time after the exit switch was turned OFF by the paper. Nov. 1997 © TOSHIBA 13 - 27...
Page 195 7 or later. When the RADF is used, ADU-MOT is not stopped since the original is turned over continuously. 4560/4570 ADU 13 - 28 Nov. 1997 © TOSHIBA...
Page 196 Paper in ADU stack section (Empty switch) SID-SW – Side guide home position L: OFF (Side switch) (Photosensor shielded) H: ON END-SW – End guide home position L: OFF (End switch) (Photosensor shielded) H: ON Nov. 1997 © TOSHIBA 13 - 29 4560/4570 ADU...
Page 197 During the initialization of the SID-MOT DM3 and END-MOT DM2 , if the respective home switch positions are not detected, a message will be displayed indicating that the ADU cannot function. 4560/4570 ADU 13 - 30 Nov. 1997 © TOSHIBA...
Page 198 Paper fed from the cassette the ADU Copying Copying Copy transported Copy exits from into the ADU the machine Required number of copies Final copy? made? Change originals PRINT key ON Nov. 1997 © TOSHIBA 13 - 31 4560/4570 ADU...
Page 199 Required number of copies made? Final original? Next original fed from the ADF Paper fed from the cassette Copying Copy transported to the ADU Required number of copies made? 4560/4570 ADU 13 - 32 Nov. 1997 © TOSHIBA...
Page 200: Duplex Copying From Two-Sided Originals
Copying Copy transported into the ADU Required number of copies made? Turn over the original PRINT key ON Paper fed from the Copying Copy exits from the machine Final copy? Nov. 1997 © TOSHIBA 13 - 33 4560/4570 ADU...
Page 201 Original reversed Paper fed from the Copying cassette Copy exiting from Copying the machine Copy transported Required into the ADU number of copies made? Required number of copies made? Final originals? 4560/4570 ADU 13 - 34 Nov. 1997 © TOSHIBA...
Page 202 Paper fed from the cassette Left-side page copying Copy transported into the ADU Required number of copies made? Paper fed from the Right-side page copying Copy exits from the machine Final copy? Nov. 1997 © TOSHIBA 13 - 35 4560/4570 ADU...
Page 203 Required number of copies made? Paper fed from the cassette Right-side page copying Copy transported into the ADU Required number of copies made? Turn over to the next page 4560/4570 ADU 13 - 36 Nov. 1997 © TOSHIBA...
Page 204 Final copy? Paper fed from the cassette Right-side page copying Paper fed from the Copy transported into the ADU Copy exits from the machine Required number of copies made? Final copy Nov. 1997 © TOSHIBA 13 - 37 4560/4570 ADU...
Page 205 Side guides move back to the paper size width +5 mm 3 sec. elapsed position after copier’s EXIT-SW was turned ON? ADU jam Final copy? STSOL SOL1 STCLT CLT2 stops ADU-MOT Standby 4560/4570 ADU 13 - 38 Nov. 1997 © TOSHIBA...
Page 206 (2) Duplex copying operation Duplex copying ADU-MOT FEDCLT CLT1 Copier PSTP-SW FEDCLT stops CLT1 1.1 sec elapsed after FEDCLT was turned ON? ADU jam Nov. 1997 © TOSHIBA 13 - 39 4560/4570 ADU...
Page 207 Final copy? Has the final copy exited into the copy tray? ADU-MOT stops Standby 4560/4570 ADU 13 - 40 Nov. 1997 © TOSHIBA...
Page 208 13.8.6 Timing charts (A) Timing for ADU stacking (A4 size, feeding from the copier’s two cassettes) Copier side 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00 0.72 1.50 PSTPCU (Paper stop switch) 0.97 1.84 PSTPC0 (Paper stop switch) RGT-CLT 1.08...
Page 209 (B) Timing for ADU re-feeding (A4 size, single-sheet stacking) Copier side 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00 1.03 1.81 PSTPCU (Paper stop switch) 1.28 PSTPC0 2.15 (Paper stop switch) RGT-CLT (Aligning roller) 1.39 2.25 3.43 EXIT-SW...
Page 210 13.8.7 Harness connection diagram...
Page 214 R15 1 R17 1 R242 R48 1 R66 1 1000P/50 1000P/50 3300P/50 RR10 4.7K 4.7K 1/10W4.7K 1/10W4.7K 1/10W4.7K 1/10W4.7K 1/10W4.7K 1/10W4.7K 1/10W4.7K 14.ELECTRIC CIRCUIT DIAGRAM 14.1 Logic Circuit (PWA-LGC) 1/13 Nov. 1997 © TOSHIBA 14 - 1 4560/4570 CIRCUIT DIAGRAMS...
Page 215 HINT How to search for where a signal in a circuit diagram has jumped to. 14.ELECTRIC CIRCUIT DIAGRAM 14.1 Logic Circuit (PWA-LGC) 2/13 4560/4570 CIRCUIT DIAGRAMS 14 - 2 Nov. 1997 © TOSHIBA...
Page 216 BIN/OCT R115 [HC138A] IC15 SCSW-A [SCSW-A] SCSW-B [SCSW-B] SCSW-C 13B5 [SCSW-C] SCSW-D 13B5 [SCSW-D] & R171 SCSW-E 13B5 [SCSW-E] R172 1/10W470 1/10W470 14.ELECTRIC CIRCUIT DIAGRAM 14.1 Logic Circuit (PWA-LGC) 3/13 Nov. 1997 © TOSHIBA 14 - 3 4560/4570 CIRCUIT DIAGRAMS...
Page 217 DRV6 RGTCLTCL 13A5 [DRV6] 12D5 [RGTCLTCL] DRV-[0:7] DRV-7 DRV7 [DRV-[0:7]] 13A5 [DRV7] [VCC] [VCC] 0.1/50 [GND] [GND] [GND] [GND] 0.1/25 [FIN] [FIN] 14.ELECTRIC CIRCUIT DIAGRAM 14.1 Logic Circuit (PWA-LGC) 4/13 4560/4570 CIRCUIT DIAGRAMS 14 - 4 Nov. 1997 © TOSHIBA...
Page 218 RETS7 [SFBSW] 11C3 1/10W4.7K R155 R201 1/10W4.7K R210 1/10W4.7K 1/10W4.7K R215 R203 1 1/10W470 1/10W4.7K R211 1/10W4.7K R212 SCSW-A [SCSW-A] SCSW-B [SCSW-B] 14.ELECTRIC CIRCUIT DIAGRAM 14.1 Logic Circuit (PWA-LGC) 5/13 Nov. 1997 © TOSHIBA 14 - 5 4560/4570 CIRCUIT DIAGRAMS...
Page 219 EPROM 256KX16 SRAM32KX8 TIMEKEEPER [M27C4002] [M71256] [M48T58] IC36 IC40 IC37 8191 32767 262143 WRRAM [WRRAM] CSRAM0 [CSRAM0] [RD] [CS2] [WR] CS11 [CS11] 14.ELECTRIC CIRCUIT DIAGRAM 14.1 Logic Circuit (PWA-LGC) 6/13 4560/4570 CIRCUIT DIAGRAMS 14 - 6 Nov. 1997 © TOSHIBA...
Page 220 1SS184 IC30 1/10W4.7K [HC14] [HC14] ACOFF PDWNCHK [ACOFF] 12D5 [PDWNCHK] IC26 IC26 R153 R150 24VCHK [24VCHK] 1/10W22K 1/10W22K R152 1/10W4.7K 0.1/25 1SS184 14.ELECTRIC CIRCUIT DIAGRAM 14.1 Logic Circuit (PWA-LGC) 7/13 Nov. 1997 © TOSHIBA 14 - 7 4560/4570 CIRCUIT DIAGRAMS...
Page 221 13D8 [CSIPC] [WR] 13D8 [WE] 1/10W3.9K 1/10W1K HTRTH- HTRDY [HTRTH-] [HTRDY] [RD] 13E8 [OE] HTRDY2 [HTRDY2] [VCC] [GND] 1/10W3.3K 1/10W4.7K 1/10W3.9K 0.1/25 14.ELECTRIC CIRCUIT DIAGRAM 14.1 Logic Circuit (PWA-LGC) 8/13 4560/4570 CIRCUIT DIAGRAMS 14 - 8 Nov. 1997 © TOSHIBA...
Page 222 HVTDC [HVT-DC] 12D3 [HVTDC] HVT-AC HVTAC [HVT-AC] 12C3 [HVTAC] HVT-M HVTM [HVT-M] 12C3 [HVTM] FMOT-ONA FMOT-ON [FMOT-ONA] 11E4 [FMOT-ON] [VCC] [GND] 0.1/25 14.ELECTRIC CIRCUIT DIAGRAM 14.1 Logic Circuit (PWA-LGC) 9/13 Nov. 1997 © TOSHIBA 14 - 9 4560/4570 CIRCUIT DIAGRAMS...
Page 223 11E5 [RGTD] VREFB [VCC] 1/10W3.9K +5VSW 24VF [PG] [SG] 1/10W330 0.1/25 0.1/25 1S1834 RST-SW [RST-SW] RSTSW 12B3 [RSTSW] RN2401 2SD1417 1/10W1K 1/10W3.3K 14.ELECTRIC CIRCUIT DIAGRAM 14.1 Logic Circuit (PWA-LGC) 10/13 4560/4570 CIRCUIT DIAGRAMS 14 - 10 Nov. 1997 © TOSHIBA...
Page 224 [MREQ-P] [FPLL-OK] 10C8 [RGTC] REGIST-MOTOR MACK-P FMOT-BRK RGTB [MACK-P] [FMOT-BRK] 10D8 [RGTB] PTXD FMOT-ON [FMOT-ON] [PTXD] RGTD ERSLP 10D8 [RGTD] 10A4 [ERSLP] 14.ELECTRIC CIRCUIT DIAGRAM 14.1 Logic Circuit (PWA-LGC) 11/13 Nov. 1997 © TOSHIBA 14 - 11 4560/4570 CIRCUIT DIAGRAMS...
Page 225 [STXD] 22/50 SORTER 53324-6 MACK-S [MACK-S] ACOFF [ACOFF] POWER-UNIT2 ZCINT [ZCINT] SRXD [SRXD] SSR- [SSR-] SSR+ 47/50 12A3 [SSR+] POWER-UNIT1 100/16 DUMMY 14.ELECTRIC CIRCUIT DIAGRAM 14.1 Logic Circuit (PWA-LGC) 12/13 4560/4570 CIRCUIT DIAGRAMS 14 - 12 Nov. 1997 © TOSHIBA...
Page 226 0.1/25 0.1/25 0.1/25 0.1/25 7407M HC32M C2XB 7407M HC244WM 7407M HC245AWM HC244WM HC132M 14.ELECTRIC CIRCUIT DIAGRAM 0.1/25 0.1/25 0.1/25 0.1/25 0.1/25 0.1/25 0.1/25 0.1/25 0.1/25 14.1 Logic Circuit (PWA-LGC) 13/13 Nov. 1997 © TOSHIBA 14 - 13 4560/4570 CIRCUIT DIAGRAMS...
Page 227 HINT How to search for where a signal in a 14.2 Control Panel Circuit (PWA-PNL) circuit diagram has jumped to. 0.1/25 0.1/25 14.ELECTRIC CIRCUIT DIAGRAM 14.2 Control Panel Circuit (PWA-PNL) 4560/4570 CIRCUIT DIAGRAMS 14 - 14 Nov. 1997 © TOSHIBA...
Page 228 VD10 VA10 VA11 VD11 VA11 VA12 VD12 VA12 VA13 VD13 VA13 VA14 VD14 VA14 1/10W100 VD15 VA15 VD[0:7] 1351F0A 1351F0A 0.1/25 4.7/16 14.ELECTRIC CIRCUIT DIAGRAM 14.2 Control Panel Circuit (PWA-PNL) Nov. 1997 © TOSHIBA 14 - 15 4560/4570 CIRCUIT DIAGRAMS...
Page 229 EPROM 256KX16 EPROM 256KX16 [M27C4002] [M27C4002] IC10 IC11 SRAM32KX8 [M71256] 262143 262143 32767 [RD] R49 2 [CS2] 1/10W470 [CS3] 1/10W470 [CS1] 1/10W470 14.ELECTRIC CIRCUIT DIAGRAM 14.2 Control Panel Circuit (PWA-PNL) 4560/4570 CIRCUIT DIAGRAMS 14 - 16 Nov. 1997 © TOSHIBA...
Page 230 [CCFL-] VLOW 47/16 0.1/25 1/10W4.7K [N07] DSON0 [DSON0] IC15 2SA1428Y 1/10W560 1/10W4.7K DSPON0 [N07] [DSPON0] DSON1 [DSON1] IC15 2SA1428Y 1/10W560 DSPON1 DSPON1] 14.ELECTRIC CIRCUIT DIAGRAM 14.2 Control Panel Circuit (PWA-PNL) Nov. 1997 © TOSHIBA 14 - 17 4560/4570 CIRCUIT DIAGRAMS...
Page 231 [SCN0] SCN1 [SCN1] SCN2 [SCN2] [CN4] SCN3 [SCN3] CCFL+ [CCFL+] SCN4 S3L2E [SCN4] SCN5 [SCN5] CCFL SCN6 [SCN6] CCFL- [CCFL-] SCN7 [SCN7] 14.ELECTRIC CIRCUIT DIAGRAM 14.2 Control Panel Circuit (PWA-PNL) 4560/4570 CIRCUIT DIAGRAMS 14 - 18 Nov. 1997 © TOSHIBA...
Page 232 LP10 LTL16KG LERST [LERST] LTL16KG LAST LTL16KG LTL16KG LTL16KG P/USER LTL16KG LTL16KG [VDD] [VSSL] LTL16KG [VSSD] [VSSD] LTL16KG [VSSD] [VSSD] 14.ELECTRIC CIRCUIT DIAGRAM 14.3 Control Key 1 Circuit (PWA-KEY 1) Nov. 1997 © TOSHIBA 14 - 19 4560/4570 CIRCUIT DIAGRAMS...
Page 233 B3F-1000 B3F-1000 SCN7 [SCN7] [SWAA] [SWAA] [SWAA] [SWAA] B3F-1000 B3F-1000 B3F-1000 B3F-1000 RETK12 [RETK12] RETK13 [RETK13] RETK14 [RETK14] RETK15 [RETK15] 14.ELECTRIC CIRCUIT DIAGRAM 14.3 Control Key 1 Circuit (PWA-KEY 1) 4560/4570 CIRCUIT DIAGRAMS 14 - 20 Nov. 1997 © TOSHIBA...
Page 234 [SCN6] SCN5 [SCN5] SCN4 [SCN4] SCN3 [SCN3] SCN2 [SCN2] SCN1 [SCN1] SCN0 [SCN0] RETK15 [RETK15] RETK14 [RETK14] RETK13 [RETK13] RETK12 [RETK12] 14.ELECTRIC CIRCUIT DIAGRAM 14.3 Control Key 1 Circuit (PWA-KEY1) Nov. 1997 © TOSHIBA 14 - 21 4560/4570 CIRCUIT DIAGRAMS...
Page 235 LTL433G EXPO2 LTL433G EXPO1 LTL16KG AUTO LTL16KG PHOT0 [VDD] [VSSL] LTL16KG TIMER [VSSD] [VSSD] LTL16KG [VSSD] [VSSD] LTL16KG [TH+] NTH42G [TH-] 14.ELECTRIC CIRCUIT DIAGRAM 14.4 Control Key 2 Circuit (PWA-KEY2) 4560/4570 CIRCUIT DIAGRAMS 14 - 22 Nov. 1997 © TOSHIBA...
Page 236 B3F-1000 SCN8 [SCN8] [SWAA] [SWAA] [SWAA] [SWAA] AUTO PHOTO B3F-1000 B3F-1000 B3F-1000 B3F-1000 RETK12 [RETK12] RETK13 [RETK13] RETK14 [RETK14] RETK15 [RETK15] 14.ELECTRIC CIRCUIT DIAGRAM 14.4 Control Key 2 Circuit (PWA-KEY2) Nov. 1997 © TOSHIBA 14 - 23 4560/4570 CIRCUIT DIAGRAMS...
Page 237 [LEDAT] LELTH1 [LELTH1] LERST [LERST] LECLK [LECLK] [CN6] RETK15 53325-6V [RETK15] RETK14 [RETK14] RETK13 [RETK13] RETK12 [RETK12] SCN8 [SCN8] SCN3 [SCN3] 14.ELECTRIC CIRCUIT DIAGRAM 14.4 Control Key 2 Circuit (PWA-KEY2) 4560/4570 CIRCUIT DIAGRAMS 14 - 24 Nov. 1997 © TOSHIBA...
Page 240: Power Circuit
ON to protect electrical components if two different voltages short. If this happens, remove the cause of the short, and turn the main switch OFF then ON again to enable circuit operation. Nov. 1997 © TOSHIBA 15 - 1 4560/4570 POWER...
Page 241 DC output voltages can be checked on the following connector pins. Voltage Connector 24VA J529 24VB J534 24VC J530 24VD J533 24VE J533 24VI J535 24VJ J536 24VF J532 24VG J533 24VH J530 J531 24VK J530 24VL J529 4560/4570 POWER 15 - 2 Nov. 1997 © TOSHIBA...
Page 242: Output Sequence
10ms ~ 120ms ACOFF 21.6V or more Reg 1 (Option) 21.6V or more +24V 0 – 200ms 21.6V or more Reg 2 (Copier) 21.6V or more +24V Zero cross Nov. 1997 © TOSHIBA 15 - 3 4560/4570 POWER...
Page 250: Ac Wire Harness
J91-2 Exposure lamp Fuse J501-3 Thermofuse 100V~: 10A 200V~: 6.3A Relay Option +24V, +5V (DF, Sorter, RMS, etc.) Copier +24V (Motor, clutch, high-voltage, etc.) *1: Parts inside the switching power supply Nov. 1997 © TOSHIBA 17 - 1 4560/4570 WIRE...
Page 251 BZON J275 DSPON1 J276 TH– PWA-KEY2 PRXD PACK DSPON0 PREQ J64B PERR SCN3 MERR-P SCN8 RETK12 MREQ-P RETK13 MACK-P RETK14 PTXD RETK15 SCN2 SCN4 SCN5 SCN6 SCN7 +24V T-CTR CTRON CTR-CNT 4560/4570 WIRE 17 - 2 Nov. 1997 © TOSHIBA...
Page 252 LCDENB XSCL CCFL+ CCFL- PWA-PNL RETKO SCN10 SCN9 SCN8 SCN7 SCN6 SCN5 SCN4 SCN3 SCN2 SCN1 SCN0 RETK11 RETK10 RETK9 RETK8 RETK7 RETK6 RETK5 RETK4 RETK3 RETK2 RETK1 Nov. 1997 © TOSHIBA 17 - 3 4560/4570 WIRE...
Page 253 +24V J244 J542 +24V LNSD LNSC LNS-MOT LNSB LNSA +24V J545 +24V MRRD MRRC MRR-MOT MRRB MRRA +24V J301 DRMTH DRM-THMS J243 J102 LNSSW LNS-SW J113 MRRSW MRR-SW J101 PLTNSW PTN-SW 4560/4570 WIRE 17 - 4 Nov. 1997 © TOSHIBA...
Page 254 J224 J303 +24V MAIN-SW RSTSW J304 J277 J227 PSTPC0 PSTP0-SW J226 J108 PSTP1-SW PSTPCU J208 +24V DEV-FAN DEV-FAN J222 J511 BIASVREF HVMVREF HVTM HVTPRE HVACVREF PS-HVT HVTAC HVTVREF HVTDC PS-ACC J534 Nov. 1997 © TOSHIBA 17 - 5 4560/4570 WIRE...
Page 255 +24V J235 Power J535 Source Pins +24V +5VD J255 J536 +24VF +24V J531 J529 +24V +5VE +24V ACOFF MAIN-MOT +24V ZCINT SSR– SSR+ J550 +24V +24V FEED-MOT J532 J236 +24V PS-ACC 4560/4570 WIRE 17 - 6 Nov. 1997 © TOSHIBA...
Page 256 J235A J14A AD-CNT ENDSW SIDSW PEMPAD PJAM1AD SIDM-D SIDM-B SIDM-C SIDM-A +5VSW J235B J14B APLL-OK AMOT-BRK AMOT-OFF FDCLT-AD STCLT-AD STSOL-AD ENDM-D ENDM-B ENDM-C ENDM-A J235 PS-ACC J535 J235 Power Source Pins Nov. 1997 © TOSHIBA 17 - 7 4560/4570 WIRE...
Page 257 RETS-2 SCSW-D SCSW-C RETS-7 RETS-6 RETS-5 RETS-4 PMOT-REF RMS7 RMS6 RMS5 RMS4 RMS3 RMS2 RMS1 RMS0 +24V +24V CTRON CTR-CNT ZMDTCT ENABLE ERROR A3DTCT PCTXD PCRXD PCRTS PCDSR PCDTR PCCTS PC-CNT 4560/4570 WIRE 17 - 8 Nov. 1997 © TOSHIBA...
Page 258 I/O0 I/O2 I/O4 I/O6 CSIPC PWA-LGC IPCSW I/O1 I/O3 I/O5 I/O7 RESET FMOT-REF J549 FMOT-DIR J550 FPLL-OK FEED-MOT FMOT-BRK PS-ACC FMOT-ON J529 RGTA +24V RGTC RGT-MOT RGTB +24V RGTD +24V ACCFAN Nov. 1997 © TOSHIBA 17 - 9 4560/4570 WIRE...
Page 259: Reversing Automatic Document Feeder (Radf)
Up to 50 originals (A4/60~80 g/m or Letter/16~22 lb.) can be set at a time. Feeding Speed Approx. 45 originals/minute (A4 or Letter, side feeding) when installed on the 4560 Acceptable Original Size Minimum : A5-R or Statement-R, Personal check...
Page 260 • Exit roller • Exit-cover switch • Exit cover Tray • Tray • Side guide — • Fold-out holder Control section — • PC board Other • Cover — • Hinges 4560/4570 RADF 18 - 2 Nov. 1997 © TOSHIBA...
Page 261 Jam access Brush Pick-up roller cover Exit roller Belt holding roller Belt holding roller Reversing roller Feed roller Belt drive roller Transport belt Belt roller Aligning sensor Size sensor Aligning roller Nov. 1997 © TOSHIBA 18 - 3 4560/4570 RADF...
Page 262 : When transport clutch is ON Rotates in reversing roller CCW direction. : When transport clutch is ON Exit roller stops. Weight falls. Flapper rises. : When transport clutch is ON 4560/4570 RADF 18 - 4 Nov. 1997 © TOSHIBA...
Page 263 Rotates in reversing roller CCW direction. : When transport clutch is ON Rotates in exit roller CCW direction. : When transport clutch is ON Weight rises. Flapper falls. : When transport clutch is ON Nov. 1997 © TOSHIBA 18 - 5 4560/4570 RADF...
Page 264 C. Dual-side original feed Operation from original feed to discharge (start of original feed separation aligning transport reversal stop at exposure position copy original discharge) is described in steps C-1 to C-8. 4560/4570 RADF 18 - 6 Nov. 1997 © TOSHIBA...
Page 265 : Turns ON. • Aligning roller : Rotates. • Transport belt : Rotates in forward direction. • The aligning sensor turns OFF, and the original is transported for a fixed number of pulses. Nov. 1997 © TOSHIBA 18 - 7 4560/4570 RADF...
Page 266 • The original is fed for a fixed number of pulses after the aligning sensor turns ON, and the motor stops. 4560/4570 RADF 18 - 8 Nov. 1997 © TOSHIBA...
Page 267 A-8 Completion of discharge • After a fixed amount of time has elapsed since the motor stopped, the transport clutch is turned OFF to complete original discharge. Nov. 1997 © TOSHIBA 18 - 9 4560/4570 RADF...
Page 268 : Turns ON. • Aligning roller : Rotates. • Transport belt : Rotates in forward direction. • The aligning sensor turns OFF, and the original is transported for a fixed number of pulses. 4560/4570 RADF 18 - 10 Nov. 1997 © TOSHIBA...
Page 269 • Aligning roller : Stops. • Transport belt : Stops. • The original is fed for a fixed number of pulses after the aligning sensor turns ON, and the motor stops. Nov. 1997 © TOSHIBA 18 - 11 4560/4570 RADF...
Page 270 OFF, and the motor stops. • After a fixed amount of time has elapsed since the motor stopped, the transport clutch is turned OFF to complete original feed. 4560/4570 RADF 18 - 12 Nov. 1997 © TOSHIBA...
Page 271 B-10 Completion of discharge • After a fixed amount of time has elapsed since the motor stopped, the transport clutch is turned OFF to complete original discharge. Nov. 1997 © TOSHIBA 18 - 13 4560/4570 RADF...
Page 272 : Turns OFF. • Transport clutch : Turns ON. • Aligning roller : Rotates. • Transport belt : Rotates in forward direction. • The original is fed out to the copy glass surface. 4560/4570 RADF 18 - 14 Nov. 1997 © TOSHIBA...
Page 273 C-6 Completion of original feed • After a fixed amount of time has elapsed since the motor stopped, the transport clutch is turned OFF to complete original feed. Nov. 1997 © TOSHIBA 18 - 15 4560/4570 RADF...
Page 274 C-8 Completion of discharge • After a fixed amount of time has elapsed since the motor stopped, the transport clutch is turned OFF to complete original discharge. 4560/4570 RADF 18 - 16 Nov. 1997 © TOSHIBA...
Page 275 13. When the next ORG-IN signal is received, the PRE-FED signal is reset, and operation is resumed from 4. However, note that the transport clutch is turned ON at 12., so the transport clutch is not turned ON. Nov. 1997 © TOSHIBA 18 - 17 4560/4570 RADF...
Page 276 6. After being driven for a fixed number of pulses after the leading edge of the final original has arrived at the exit sensor (exit inversion sensor), the motor is stopped. 4560/4570 RADF 18 - 18 Nov. 1997 © TOSHIBA...
Page 277 23. 23. When a fixed amount of time has elapsed after the transport clutch is turned ON, the motor is driven in the forward direction to discharge all originals being transported. Nov. 1997 © TOSHIBA 18 - 19 4560/4570 RADF...
Page 278 2nd original to the glass surface. 11. The PRE-STP signal is set by the set timing of the PRE-STP signal. 4560/4570 RADF 18 - 20 Nov. 1997 © TOSHIBA...
Page 279 (exit inversion sensor), the motor is stopped. When a fixed amount of time has elapsed after the motor has stopped, the transport clutch is turned OFF. 20. The DF-ACT signal is reset, and the discharge of the final original ends. Nov. 1997 © TOSHIBA 18 - 21 4560/4570 RADF...
Page 280 Detection switch for opening/closing ADF unit Reed switch DFSW (ADF set switch) JAM-SW Detection switch for opening/closing feed unit Reed switch JAMSW (Feed-cover switch) EXIT-SW Detection switch for opening/closing exit unit Reed switch EXITSW (Exit-cover switch) 4560/4570 RADF 18 - 22 Nov. 1997 © TOSHIBA...
Page 281 DRVCLU Transport clutch Drive motor SIZE S1 Size sensor 1 EMPS Empty sensor REGS Aligning sensor SIZE S2 Size sensor 2 DFSW ADF set switch EXITS Exit sensor EXITSW Exit-cover sensor Nov. 1997 © TOSHIBA 18 - 23 4560/4570 RADF...
Page 282 JAM SW EXIT-SW EXIT SW EEPROM ACK1 PASUCLU PASUCLU REQ2 Driver REQ1 DRVCLU DRVCLU ADF TXD Interface circuit SGND ADF RXD SGND ACK 2 Rush current- Driver DC+24V preventive Power circuit circuit 4560/4570 RADF 18 - 24 Nov. 1997 © TOSHIBA...
Page 283: Description Of Interface Signals
Since data transmission between the copier and the ADF (ADFRXD and ADFTXD) is conducted by means of serial transmission, it is not possible to check for the correct data transmission in the field. Copier REQ1 ACK1 ADFRXD REQ2 ACK2 ADFTXD Nov. 1997 © TOSHIBA 18 - 25 4560/4570 RADF...
Page 284 Until the exit sensor (exit inversion sensor) turns OFF after 2699 exit sensor (exit inversion sensor) turns ON during discharge Until original feed ends after start of motor reverse drive in 2215 (Note 2) the dual-side mode 4560/4570 RADF 18 - 26 Nov. 1997 © TOSHIBA...
Page 285 ON when the pulses is incremented, this is regarded as a exit sensor (exit inversion sensor) retention jam. 18.7.3 Type of errors (1) Poor aligning sensor adjustment. (2) Poor exit sensor adjustment. (3) Poor EEPROM initialization. Nov. 1997 © TOSHIBA 18 - 27 4560/4570 RADF...
Page 286 6 mm, judgement would be difficult. So the size sensor 2 is additionally used to distinguish between A4 and Letter sizes. The size sensor 2 is turned on for A4 lengthwise which is 297 mm and off for Letter lengthwise which is 279 mm. 4560/4570 RADF 18 - 28 Nov. 1997 © TOSHIBA...
Page 287 200~226 A4(210.0) 200~226 280(279.4) LT(215.9) ON/OFF 227~345 Raw data Irregular size 346~366 258(257.2) COMPUTER(355.6) ON/OFF 367~413 Raw data Irregular size 414~426 A3(420.0) 427~442 280(279.4) LEDGER(431.8) ON/OFF 443~ Raw data Irregular size Nov. 1997 © TOSHIBA 18 - 29 4560/4570 RADF...
Page 288 After the original size has been determined, the size data of the feed direction and the widthwise size data created by inferring from that of the feed direction are sent out to the copier. 4560/4570 RADF 18 - 30 Nov. 1997 © TOSHIBA...
Page 289: Flow Chart
Power ON Cover open? All sensors OFF? Empty sensor ON? ORG-IN signal H-level? Dual-side mode? ORG-OUT signal H-level? (dual-side feed operation) 2in1 mode? (exit operation) Standby (single-side feed operation) (2in1 feed operation) Nov. 1997 © TOSHIBA 18 - 31 4560/4570 RADF...
Page 290 Upper side being set? Next original on tray? Start of reverse feeding Start of pre-exit Start of two-step pre-feeding Reverse Pre-exit completed? feeding completed? Two-step pre-feeding completed? Standby 4560/4570 RADF 18 - 32 Nov. 1997 © TOSHIBA...
Page 291 Start of 2in1 feeding Not 1st copy? 2in1 feeding completed? Start of pre-exit Pre-exit completed? Start of dual-side feeding Start of pre-feeding Dual-side feeding completed? Pre-feeding completed? Standby Nov. 1997 © TOSHIBA 18 - 33 4560/4570 RADF...
Page 292 (2nd original) A4-LT? Start of reverse feeding Start of pre-exit Pre-feeding completed? Reverse feeding Start of 2in1 feeding Pre-exit completed? completed? (2nd original) Start of pre-feeding 2in1 feeding completed? (1st original) Standby 4560/4570 RADF 18 - 34 Nov. 1997 © TOSHIBA...
Page 293 Transport clutch ON? Transport clutch OFF Fixed-time delay Start of motor reverse drive Aligning sensor ON? Fixed number of pulses counted Motor stopped Feed clutch OFF Fixed-time delay Fixed-time delay Pre-feeding completed Nov. 1997 © TOSHIBA 18 - 35 4560/4570 RADF...
Page 294 Transport clutch ON? Feed clutch OFF Transport clutch ON? Transport clutch OFF Fixed-time delay Start of motor forward drive Fixed number of pulses counted Motor stopped Fixed-time delay End of two-step pre-feeding 4560/4570 RADF 18 - 36 Nov. 1997 © TOSHIBA...
Page 295 G. Exit operation Upper side being set? Start of reverse feeding Reverse feeding completed? Start of final exit Final exit completed? Standby Nov. 1997 © TOSHIBA 18 - 37 4560/4570 RADF...
Page 296 Transport clutch ON Fixed-time delay Start of motor forward drive Aligning sensor OFF? Fixed number of pulses counted Motor stopped Transport clutch OFF Fixed-time delay Fixed-time delay End of single-side feeding 4560/4570 RADF 18 - 38 Nov. 1997 © TOSHIBA...
Page 297 Fixed number of pulses counted Aligning sensor OFF? Motor stopped Fixed-time delay Exit sensor ON? Transport clutch OFF Fixed number of pulses counted Fixed-time delay Motor stopped End of dual-side feeding Nov. 1997 © TOSHIBA 18 - 39 4560/4570 RADF...
Page 298 Fixed number of pulses counted Exit sensor ON? Motor stopped Fixed number of pulses counted Fixed-time delay Motor stopped Transport clutch OFF Fixed-time delay Fixed-time delay End of reverse feeding 4560/4570 RADF 18 - 40 Nov. 1997 © TOSHIBA...
Page 299 Feeding of 2nd original possible? Start of motor forward drive Feed clutch ON Aligning sensor OFF? Transport clutch OFF Fixed number of pulses counted Fixed-time delay End of 2in1 feeding (1st original) Nov. 1997 © TOSHIBA 18 - 41 4560/4570 RADF...
Page 300 Feed clutch OFF Transport clutch ON? Transport clutch OFF Fixed-time delay Start of motor forward drive (start of original joining) Aligning sensor OFF? Fixed number of pulses counted Motor stopped Fixed-time delay 4560/4570 RADF 18 - 42 Nov. 1997 © TOSHIBA...
Page 301 A4-LT or smaller? Aligning sensor ON? Reset pulse count A4-LT or smaller? Fixed number of pulses counted Motor stopped Fixed-time delay Transport clutch OFF Fixed-time delay End of 2in1 feeding (2nd original) Nov. 1997 © TOSHIBA 18 - 43 4560/4570 RADF...
Page 302 Start of motor forward drive Start of motor forward drive (start of 2nd original re-feeding) (start of 2nd original re-feeding) Aligning sensor OFF? Fixed number of pulses counted Motor stopped Fixed-time delay 4560/4570 RADF 18 - 44 Nov. 1997 © TOSHIBA...
Page 303 Transport clutch ON Fixed-time delay Start of motor forward drive (start of pre-exit) Fixed number of pulses counted Motor stopped Feed clutch ON Transport clutch OFF Fixed-time delay End of pre-exit Nov. 1997 © TOSHIBA 18 - 45 4560/4570 RADF...
Page 304 Transport clutch ON Fixed-time delay Start of motor forward drive Exit sensor turned OFF by final original? Fixed number of pulses counted Motor stopped Transport clutch OFF Fixed-time delay End of final exit 4560/4570 RADF 18 - 46 Nov. 1997 © TOSHIBA...
Page 305 0.10 0.10 0.10 ORG-IN 0.10 ORG-OUT 0.01 1.12 0.01 0.40 0.01 0.40 0.01 1.19 DF-ACT 1.19 0.40 0.01 0.01 0.01 0.40 ORG-STP 1.40 0.02 0.57 0.02 PRE-FED 1.10 0.74 1.25 1.98 0.01 0.47 1.27 0.02 0.47 0.06 1.13 2.20 0.04 Driving motor 0.60 1.39 1.89 0.61...
Page 306 0.10 0.10 ORG-IN 0.10 ORG-OUT 1.48 1.78 0.01 0.01 0.01 1.20 DF-ACT 0.01 0.01 1.51 1.82 ORG-STP PRE-FED 0.39 0.74 1.57 0.06 1.05 0.06 1.14 1.89 0.05 Driving motor 0.59 0.51 0.90 0.01 0.45 0.94 0.62 Feed clutch 0.01 0.45 0.99 1.62 1.94 0.68...
Page 307 0.10 0.10 0.10 0.10 ORG-IN 0.10 ORG-OUT 0.01 2.54 0.01 3.88 1.31 1.31 1.19 0.01 0.01 0.01 DF-ACT 4.27 0.01 0.01 2.98 0.01 0.01 1.73 1.73 ORG-STP PRE-FED 0.26 2.19 3.19 0.63 0.63 1.33 0.06 0.05 0.06 0.06 1.13 0.89 1.88 0.06 Driving motor...
Page 308 0.10 0.10 0.10 0.10 ORG-IN 0.10 ORG-OUT 2.56 0.98 0.01 0.98 0.01 0.01 3.79 0.01 0.01 1.20 DF-ACT 0.01 0.01 0.01 1.40 0.01 4.22 2.99 1.40 ORG-STP PRE-FED 0.26 2.13 3.12 0.30 1.33 0.06 0.05 0.06 1.13 0.06 0.30 0.90 1.89 0.05 Driving motor...
Page 309 0.10 0.10 ORG-IN 0.10 ORG-OUT 2.46 2.29 0.01 0.01 0.01 1.21 DF-ACT 2.49 0.01 2.34 0.01 ORG-STP 1.20 2.49 1.23 2.29 PRE-FED 1.87 1.94 2.09 2.02 1.72 0.63 1.09 1.13 1.16 0.66 0.06 2.40 2.55 0.04 1.88 0.05 Driving motor 1.62 1.78 0.53...
Page 310 D-A output voltage is varied and using the voltage-current conver- sion circuit consisting of IC1, Q6, R78, etc., LED current is adjusted. This D-A output voltage is a value unique to each machine and is memorized in EEPROM (IC7). 4560/4570 RADF 18 - 52 Nov. 1997 © TOSHIBA...
Page 311 R64, shares a part of the power loss. In this way, by varying the protective resistance value with the magnitude of consumption current, the heat caused by the power loss is distributed and dissipated. Nov. 1997 © TOSHIBA 18 - 53 4560/4570 RADF...
Page 312 IC2 (pins 9 and 11) to set the motor current value. Any motor current value is obtained by varying the duty of the PWM signal. (Excitation pattern) 2-phase excitation 4560/4570 RADF 18 - 54 Nov. 1997 © TOSHIBA...
Page 313 PMB1 from amount the 2-phase excitation pulses to EXOR (IC13). When both edges of this pulse are detected by the CPU interrupt terminal, the number of motor steps can be counted. Nov. 1997 © TOSHIBA 18 - 55 4560/4570 RADF...
Page 314 R37 up till now, flows through Q5, and the current limitation is released. R38 is a discharging resistor for immediately withdrawing the loaded accumulated to C23 when the ADF open/close switch, feed cover switch and exit cover switch become open. 4560/4570 RADF 18 - 56 Nov. 1997 © TOSHIBA...
Page 315 IC3. However, if a system error causes the clock from the CPU to stop being input, IC3 pin 8 becomes L-level to reset the CPU and stop the system. R31 is normally not mounted as it is a resistor for stopping the watchdog timer. Nov. 1997 © TOSHIBA 18 - 57 4560/4570 RADF...
Page 316 IC7 pin 3 is the serial data input terminal, and pin 4 is the serial data output terminal. D6, R60 and C31 comprise the circuit for holding the power of IC7 until writing ends even if something causes the power voltage to drop during writing of data. 4560/4570 RADF 18 - 58 Nov. 1997 © TOSHIBA...
Page 317: Explanation Of I/O Signals
18.12.2 ACK1, REQ2, ADFTXD signals This is the communications input circuit for the main unit PPC. “1” indicates 5 V, and “0” indicates 0 V. Connector logic and CPU output port logic are the same. Nov. 1997 © TOSHIBA 18 - 59 4560/4570 RADF...
Page 318: Sensor Input Circuit
Original detected No original SIZES2 (size sensor 2) Original detected No original EXITS (exit sensor): No original Original detected (connector (connector voltage 2 V or more) voltage less than 2 V) 4560/4570 RADF 18 - 60 Nov. 1997 © TOSHIBA...
Page 319 PMA1/2 and PMB1/2. The motor current is set by inputting the PWM signal to PWMMOT. 18.12.5 Clutch output circuit This is the drive circuit of the electromagnetic clutch. The clutch is turned ON when the input signal is “0” (0 V) in any case. Nov. 1997 © TOSHIBA 18 - 61 4560/4570 RADF...
Page 320 When all of the three reed switches are ON, the relay coil is excited, and +24 V power is supplied to the drive circuit. The voltage of CN13.1 is 0 V when the three reed switches are ON, and 24 V when one of the reed switches is OFF . 4560/4570 RADF 18 - 62 Nov. 1997 © TOSHIBA...
Page 321 (2) Pull out the upper part (front side) of the trans- port unit toward you to disengage the belt for driving. Belt Transport unit Note: After fixing the clip, move the knob section to the side of the frame. Clip Nov. 1997 © TOSHIBA 18 - 63 4560/4570 RADF...
Page 322 After reassembly, check Frame Frame that the belt is not deviated to one side (should be on the center.) Transport belt 4560/4570 RADF 18 - 64 Nov. 1997 © TOSHIBA...
Page 323 (1) Remove two screws and take out the brush holding bracket. Brush 18.13.4 Original feed tray (1) Remove two M4 screws and take out the tray in an upward direction. Original feed tray Nov. 1997 © TOSHIBA 18 - 65 4560/4570 RADF...
Page 324 ADF unit (3) Place the entire unit upside down and remove the transport unit and the cover (3 screws). Note: (M4 8) Cover (4) Remove five connectors from the PC board. 4560/4570 RADF 18 - 66 Nov. 1997 © TOSHIBA...
Page 325 Jam acces cov (6) Remove seven screws and take out the feed unit. Note: (M4 12) ..6 pieces (PTBR) 8) ..1 piece (BID) Rear side Feed unit Front side Nov. 1997 © TOSHIBA 18 - 67 4560/4570 RADF...
Page 326 Note: Whenever reinstalling, secure the belt tensioner after all the parts. 18.13.7 Electromagnetic clutch (1) Remove one harness band, one spring and three screws. Note: One of the three screws is shorter Band (M3 4) Spring 4560/4570 RADF 18 - 68 Nov. 1997 © TOSHIBA...
Page 327 (1) Open the jam access cover. (2) Remove two screws and take out the separation unit. Spring Separation unit (3) Draw the holder from the bracket. (Be careful to prevent the pressure spring coming off.) Nov. 1997 © TOSHIBA 18 - 69 4560/4570 RADF...
Page 328 (4) Slide the aligning roller (L) to pull it out. Aligning roller(L) 18.13.12 Aligning sensor and size sensors 1 and 2 (1) Remove the feed unit. (2) Remove four screws Entrance guide 4560/4570 RADF 18 - 70 Nov. 1997 © TOSHIBA...
Page 329 (3) Remove the gear of the drive section (1 E-ring). (4) Remove two E-rings of the frame inner side. (5) Remove the front side E-ring holding the feed rolller, and then extract the roller. Feed roller Gear Nov. 1997 © TOSHIBA 18 - 71 4560/4570 RADF...
Page 330 (1) Remove the ADF unit. (2) Remove the transport unit and the cover. (3) Remove the connector from the PC board. (4) Remove earth wires (at 2 places) attached in the hinge portion. 4560/4570 RADF 18 - 72 Nov. 1997 © TOSHIBA...
Page 331 (2) Take out two screws (front and rear) and re- move the cover. Exit cover 18.13.17 Reversing roller (1) Remove the reversing unit. (2) Remove the bracket of the drive section (2 screws). Bracket Nov. 1997 © TOSHIBA 18 - 73 4560/4570 RADF...
Page 332 (6) Pull out the roller. Gear Reversing roller 18.13.18 Exit sensor (1) Remove the stay (4 screws). Stay (2) Remove the sensor board from the guide (1 screw). Exit cover sensor 4560/4570 RADF 18 - 74 Nov. 1997 © TOSHIBA...
Page 333 (1) Remove the ADF unit. (2) Remove the cover. (3) Remove the eight connectors. (4) Remove two screws, and slide the PC board to remove it from the rear side hook portion. PC board Nov. 1997 © TOSHIBA 18 - 75 4560/4570 RADF...
Page 334: Mechanical Troubleshooting
Check/adjust the gap to separation plate and feed 0.6 ± 0.2 mm. roller too wide? Wipe clean the pad Is the separation with alcohol pad dirty? Separation plate Feed roller 4560/4570 RADF 18 - 76 Nov. 1997 © TOSHIBA...
Page 335 Check/adjust the gap to separation plate and 0.6 ± 0.2 mm. feed roller too narrow? Is the transporting capability of the pick-up Replace the rollers. and feed rollers insufficient? Nov. 1997 © TOSHIBA 18 - 77 4560/4570 RADF...
Page 336 Are the slides set too wide Reset the slides to the compared to the width width of originals. of originals? Adjust the original feed tray to the right or left . 4560/4570 RADF 18 - 78 Nov. 1997 © TOSHIBA...
Page 337: Electrical Troubleshooting
EMP-SNS (“D” pin) Check the empty sensor and become +5V without replace it if necessary. paper? Check the control PC board and replace it if necessary. “A” “B” “C” “D” TP(+5V) TP(SG) CN9-3 Nov. 1997 © TOSHIBA 18 - 79 4560/4570 RADF...
Page 338: Communication Error
Is the interface Replace the interface cable. cable normal? Check the control PC board and replace it if necessary. Check the related copier Normal? PC boards and replace them if necessary. Repair completed. 4560/4570 RADF 18 - 80 Nov. 1997 © TOSHIBA...
Page 339 (5) Original’s pre-feed stop position failure Start Reflective Clean or replace the mirror of the aligning reflective mirror. sensor normal? Electromagnetic Check or replace the clutch slipping? control PC board. Adjust or replace the electromagnetic clutch. Nov. 1997 © TOSHIBA 18 - 81 4560/4570 RADF...
Page 340 18.15 PC Board Assemblies 18.15.1 PWA-F-LGC-770 18.15.2 PWA-F-RGS-770 SEC-13494V-0 PF2158K202A 18.15.3 PWA-F-SEN-770 AIN-50 4560/4570 RADF 18 - 82 Nov. 1997 © TOSHIBA...
Page 341 18.16 Circuit Diagrams/Wire Harness 18.16.1 General circuit diagram Nov. 1997 © TOSHIBA 18 - 83 4560/4570 RADF...
Page 344 18.17 Affixing Position for Mylar Sheets Note: Before affixing mylar sheets, clean the affixing surfaces. Nov. 1997 © TOSHIBA 18 - 86 4560/4570 RADF...
Page 345 1 Jump mylar A-A' Sectional view Standard Align(Gap:0~0.5) 2 Mirror sheel A-A' Sectional view Gap:0~0.5 4560/4570 RADF 18 - 87 Nov. 1997 © TOSHIBA...
Page 346 A-A' Sectional view (S=2/1) 4 Tray mylar Standard Gap with :±1 Gap with :±1 Align(gap:0~0.5) Stick in form of a loop Standard Align(gap:0~0.5) Standard Standard Align(gap:0~0.5) Align(gap:0~0.5) A - A' Sectional view Nov. 1997 © TOSHIBA 18 - 88 4560/4570 RADF...
Page 347 Do not allow the mylar to stick on. Standard (Gap:0~0.5) to stick on. Do not allow the mylar to stick on. 7 Aligning mylar Standard (Gap:0~0.3) (Do not allow the mylar to stick on) 4560/4570 RADF 18 - 89 Nov. 1997 © TOSHIBA...
Page 348 8 Pick-up mylar Standard Standard (Double face tape) Arrow A 9 Reversing mirror sheel Standard A-A' Sectional view 10 Discharge brush Standard A-A' Sectional view Nov. 1997 © TOSHIBA 18 - 90 4560/4570 RADF...
Page 349: Unpacking And Installation Instructions
• Original feeding tray <<Installation>> (1) • When carrying the machine, hold the left and right handles of the machine firmly and move it horizontally. • Set the machine on an appropriate stand. Nov. 1997 © TOSHIBA 19 - 1 4560/4570 INSTALLATION...
Page 350 Fix the handles. <<LCF Setup>> (For 4570) Remove the packing materials of the large ca- pacity feeder. Remove the packing materials of the transport guide. Install the large-capacity feeder to the hinge. 4560/4570 INSTALLATION 19 - 2 Nov. 1997 © TOSHIBA...
Page 351 Earth screw, harness clamp .. 1each 5-8 Hinge stopper, fixing screw ... 1each 5-9 Hinge cover, fixing screw ... 1pc, 2 screws 5-11 Install the harness cover (L). Install the harness cover (U). Nov. 1997 © TOSHIBA 19 - 3 4560/4570 INSTALLATION...
Page 352 Install the harness clamp and the earth (ground) in the rear side of the large-capacity feeder. Install the hinge stopper. (10) Connect the connector of the rear side. (11) Install the hinge cover. 4560/4570 INSTALLATION 19 - 4 Nov. 1997 © TOSHIBA...
Page 353 Remove 2 brackets fixing the open guide and one stopper. Remove packing materials from the inside of the automatic duplexing unit. Push the automatic duplexing unit into the machine until it stops. Nov. 1997 © TOSHIBA 19 - 5 4560/4570 INSTALLATION...
Page 354 (6) • Remove the packing materials from the inside of the cassette. • Remove the power cord and the developer bot- tle. Remove the paper from the paper package. Set the paper for the cassette. 4560/4570 INSTALLATION 19 - 6 Nov. 1997 © TOSHIBA...
Page 355 Insert the cassette gently. <<Packing material removal>> Open the front cover. Remove the packing screws. Open the upper unit. Nov. 1997 © TOSHIBA 19 - 7 4560/4570 INSTALLATION...
Page 356 So, be sure to cover the process unit with, for example, a suitable cloth. Remove the top cover of the developer unit. 4560/4570 INSTALLATION 19 - 8 Nov. 1997 © TOSHIBA...
Page 357 After placing the developer unit in the proc- ess unit, move down the lever on each side to fix the developer unit. (7) • Reinstall the process unit into the machine. • Reinstall the screw and the connector. Nov. 1997 © TOSHIBA 19 - 9 4560/4570 INSTALLATION...
Page 358 (9) • Connect the power cable to the outlet. • Install the operator’s manual pocket. (10) Turn on the main switch of the copier. 4560/4570 INSTALLATION 19 - 10 Nov. 1997 © TOSHIBA...
Page 359: Call Service
<<Procedure for installing the toner cartridge>> Open the front cover. Shake the new toner cartridge to the right and to the left 5 or 6 times to loosen the toner in- side. Nov. 1997 © TOSHIBA 19 - 11 4560/4570 INSTALLATION...
Page 360 Close the front cover. <<Accessory parts attachment>> • Install 4 plastic covers to the outer covers. • The copy receiving tray should be installed in the slots in the exit cover. 4560/4570 INSTALLATION 19 - 12 Nov. 1997 © TOSHIBA...
Page 361 Repeat the procedure until the center line on the copy is in the fold. After the adjustment, tighten the two screws of the original feed tray. Nov. 1997 © TOSHIBA 19 - 13 4560/4570 INSTALLATION...
Page 362 –Duplex mode –Enlarging and reducing modes –Interruption mode –Dual-page copying –Edge erase copying –User setting –Image shifting –Mode memory –Trimming and masking Note: The packing material should be disposed of properly. 4560/4570 INSTALLATION 19 - 14 Nov. 1997 © TOSHIBA...
Page 363 Open the carton box. Remove the contents from the box. (4) • Open the front cover. • Lift up the upper unit. (This is if the MY -1006 is installed to the copier.) Nov. 1997 © TOSHIBA 19 - 15 4560/4570 INSTALLATION...
Page 364 Remove all the cassettes. Remove the slot cover (2 screws) from the corresponding slot. Open the right side cover. 4560/4570 INSTALLATION 19 - 16 Nov. 1997 © TOSHIBA...
Page 365 PFP. Install the switch for the corresponding slot (2 screws). (10) Remove the paper feed unit from the pack- age. (11) Install the paper feed unit (2 screws). Connect the connector. Nov. 1997 © TOSHIBA 19 - 17 4560/4570 INSTALLATION...
Page 366 (12) Install the connector of the paper feed side. (13) Reinstall the connector cover to its original po- sition. Install the size plate to the cassette. Install the cassette. 4560/4570 INSTALLATION 19 - 18 Nov. 1997 © TOSHIBA...
Page 367: Key Copy Counter
Disconnect the short connector from the har- Blind plate ness. Note: Remove the rear cover if the harness con- nector is in the back, etc. Harness connector Nov. 1997 © TOSHIBA 19 - 19 4560/4570 INSTALLATION...
Page 368 Install the counter socket to the frame (2 M3 Screws screws). (M3) Reinstall the upper feed cover. (7) Insert the key copy counter with its arrow mark facing up as shown. 4560/4570 INSTALLATION 19 - 20 Nov. 1997 © TOSHIBA...
Page 369 Remove the original glass, optical cover and lens cover. Set the red filter on the lens unit bracket at the feed side. Lens unit bracket Feed side Bracket projection Lens Red filter Lens bracket Nov. 1997 © TOSHIBA 19 - 21 4560/4570 INSTALLATION...

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