Epson DFX-9000 Repair Manual
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Epson DFX-9000 Repair Manual

Serial impact dot matrix printers
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See also: Service Manual , Reference Manual
FIELD REPAIR GUIDE
Serial Impact Dot Matrix Printer
EPSON DFX-9000

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Summary of Contents for Epson DFX-9000

  • Page 1 FIELD REPAIR GUIDE Serial Impact Dot Matrix Printer EPSON DFX-9000...
  • Page 2 SEIKO EPSON CORPORATION. All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.

  • Page 3: About This Manual

    About This Manual The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions as listed below: Symbols Used in this Manual Various symbols are used throughout this manual either to provide additional information on a specific topic or to warn of possible danger present during a procedure or an action.
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  • Page 5: Table Of Contents

    Epson DFX-9000 Field Repair Guide 3/29/07 Table of Contents Table of Contents ........i Revision History .
  • Page 6 Epson DFX-9000 Field Repair Guide 3/29/07 Troubleshooting ........112 Preliminary Checks .
  • Page 7 Epson DFX-9000 Field Repair Guide 3/29/07 Troubleshooting Based on Symptoms ....... .132 No Control Panel LED’s light .
  • Page 8 Epson DFX-9000 Field Repair Guide 3/29/07 Motors, Sensors and Switches ......154 Motors ............154 SP Motor .

  • Page 9: Revision History

    Epson DFX-9000 Field Repair Guide 3/29/07 Revision History Date Revision Details December 1, 2005 Initial Release. September 1, 2006 Added Motors, Sensors, and Switches Test Points. October 3, 2006 Corrected errors in Component Replacement Chapter. Added Adjustments Chapter. March 29, 2007 Added Front and Rear Tractor Removal and Installation procedures.

  • Page 10: Control Panel Map

    Epson DFX-9000 Field Repair Guide 3/29/07 Control Panel Map Control Panel Map Printer Component, Software Item, LCD Display, Printer Button Page 1.

  • Page 11: Control Panel Map

    Epson DFX-9000 Field Repair Guide 3/29/07 Control Panel Map Paper Micro Feed Up Status LCD Paper out indicator Paper Micro Feed Down Paper Path Indication Top Of Form Position Pitch Select Print Pause Paper path Select Select Paper load, Line feed...

  • Page 12: Button Functions At Power On

    Epson DFX-9000 Field Repair Guide 3/29/07 Button Functions At Power On Pause Button Bi-Direction Adjustment LF/FF Load Draft Self Test Top Of Form NLQ Self Test Pitch Selects Pitch Font Default Setting Mode LF/FF Load + Top of Form Data Dump...

  • Page 13: Selectype Functions And Settings

    Epson DFX-9000 Field Repair Guide 3/29/07 SelecType Functions and Settings Select Type Options Select Type Function Map Language - English, Franchise, Deutsche, Italiano, Espanol,Portugues. While printer LCD indicates a READY state, Print settings - Execute. pressing the Tear off &...

  • Page 14: Default Settings Mode And Options

    Epson DFX-9000 Field Repair Guide 3/29/07 Default Settings Mode and Options Default Settings Menu Options Power-On Default Settings Mode With the printer off hold the Font button down & then Label base pos - Paper left edge, First dot. power on the printer. If the LCD indicates:...
  • Page 15 Epson DFX-9000 Field Repair Guide 3/29/07 Component Replacement Component Replacement Printer Component, Software Item, LCD Display, Printer Button Page 6.

  • Page 16: Component Replacement

    Component Replacement C A U T I O N Before removing any component from the DFX-9000, ensure that the AC Power source has been removed. All directional references (left, right, top, bottom, front, and back/rear) are referenced with the printer positioned as shown above.

  • Page 17: Front Cover Assembly

    Epson DFX-9000 Field Repair Guide 3/29/07 Front Cover Assembly Open the Front Cover. Remove the Stopper from the left side of the Front Cover. Gently apply inward pressure to the clips and pull outwards to free the Stopper from the Front Cover.
  • Page 18 Epson DFX-9000 Field Repair Guide 3/29/07 Hold the Front Cover open and apply pressure to the right. Pull the Front Cover forward to free it from Upper Case. Component Replacement Printer Component, Software Item, LCD Display, Printer Button Page 9.

  • Page 19: Rear Cover

    Epson DFX-9000 Field Repair Guide 3/29/07 Rear Cover Open the Rear Cover. On the Rear Cover, remove the 2 screws on the left side and the 2 screws on the right side that secure the Rear Cover to the hinges.
  • Page 20 Epson DFX-9000 Field Repair Guide 3/29/07 C A U T I O N The hinges are spring loaded. Release the hinges slowly. Releasing a hinge too quickly can cause personal injury or damage to the printer. Slowly slide the Rear Cover away from the printer as indicated by the blue arrow. Slowly release the Hinge as indicated by red arrow.

  • Page 21: Control Panel

    Epson DFX-9000 Field Repair Guide 3/29/07 Control Panel Open the Top Cover. Release the three tabs, indicated by the arrows below, that hold the Control Panel in place. Tabs Component Replacement Printer Component, Software Item, LCD Display, Printer Button Page 12.
  • Page 22 Epson DFX-9000 Field Repair Guide 3/29/07 Pull the Control Panel forward and disconnect the Control Panel Wiring Harness from the Control Panel. Control Panel Connector Component Replacement Printer Component, Software Item, LCD Display, Printer Button Page 13.

  • Page 23: Upper Case

    Epson DFX-9000 Field Repair Guide 3/29/07 Upper Case At the back of the printer, remove the two screws located at the lower left and lower right corners that secure the Upper Case. Grasping the lower front right and lower front left hand corners, pull forward and then upward to release the hooks that fasten the Upper Case to the Lower Case.
  • Page 24 Epson DFX-9000 Field Repair Guide 3/29/07 Pull the Upper Case upward to completely remove the Upper Case. Component Replacement Printer Component, Software Item, LCD Display, Printer Button Page 15.

  • Page 25: Mechanism Removal

    Epson DFX-9000 Field Repair Guide 3/29/07 Mechanism Removal Note: Perform the Upper Case Removal procedure before performing the steps below. Steps 2 - 4 refer to “Rear Grabs”, “Tilt Bar”, and “Grommet”. Refer to the figure below for the location of these items.
  • Page 26 Epson DFX-9000 Field Repair Guide 3/29/07 Remove the one screw that holds the Control Panel Wiring Harness to the upper right side of the Mechanism. Standing at the back of printer, grasp the two Rear Grabs and tilt the Mechanism forward.
  • Page 27 Epson DFX-9000 Field Repair Guide 3/29/07 With the Mechanism tilted forward, remove the Tilt Bar, located in the right rear corner of the lower housing. Tilt Bar Right Rear Corner of Printer Insert the top of the Tilt Bar into the Rubber Grommet on the right side of Mechanism and the bottom of the Tilt Bar into the Lower Housing as shown below.
  • Page 28 Epson DFX-9000 Field Repair Guide 3/29/07 Disconnect all of the data and power cables from the Main Logic Board. Figure 1 below points out which cables are to be removed. . Figure 1 Remove the Mechanism from the Lower Case...

  • Page 29: Print Head Removal

    Epson DFX-9000 Field Repair Guide 3/29/07 Print Head Removal Note: Perform the Upper Case removal procedure before performing the steps below. Remove the two screws located on the left and right sides of the Print Head. Slightly tilt the Print Head back, then pull the Print Head up and away from the Carriage as depicted below.

  • Page 30: Ribbon Mask & Ribbon Mask Holder Removal

    Epson DFX-9000 Field Repair Guide 3/29/07 Ribbon Mask & Ribbon Mask Holder Removal Move the Carriage to the “ribbon change position” (marked by the triangle) and remove the two screws that secure the Ribbon Mask in place. Triangle 2 Screws Remove the three screws that secure the black Carriage Holder and pull the Carriage Holder away from the Carriage Assembly.
  • Page 31 Epson DFX-9000 Field Repair Guide 3/29/07 Remove the white FFC cable from Carriage Assembly PCB. Remove the two Top of Form Data Cables. Component Replacement Printer Component, Software Item, LCD Display, Printer Button Page 22.
  • Page 32 Epson DFX-9000 Field Repair Guide 3/29/07 Tilt the Ribbon Mask Holder forward and slowly pull upward while guiding the Top of Form Data Cables through the Carriage Assembly. Component Replacement Printer Component, Software Item, LCD Display, Printer Button Page 23.

  • Page 33: Ribbon Mask Removal

    Epson DFX-9000 Field Repair Guide 3/29/07 Ribbon Mask Removal With the platen side of the Ribbon Mask Holder facing you, apply a slight pressure to the Ribbon Mask allowing it to bow. While holding the Ribbon Mask in this position, from the Print Head side, slide one end of the Ribbon Mask out of the Ribbon Mask Holder, then slide out the other side.

  • Page 34: Carriage Motor (Sp Motor)

    Epson DFX-9000 Field Repair Guide 3/29/07 Carriage Motor (SP Motor) Note: The Upper Case and Mechanism removal procedure must be performed before performing the steps below. Remove the two cables from connectors CNSPHS and CNSPM located on the Main Board.
  • Page 35 Epson DFX-9000 Field Repair Guide 3/29/07 There is a Ferrite Core attached to the Carriage Motor wiring harness. Release the Ferrite Core lock clips using a small flatblade screwdriver. Lock Clips Carriage Motor wiring harness Ferrite Core Remove the Ferrite Core from the Carriage Motor wiring harness.
  • Page 36 Epson DFX-9000 Field Repair Guide 3/29/07 Pull the Carriage Motor wiring harness through the opening on the Right Side Frame located just under the SP Motor. Remove the two screws securing FAN3 to the Right Side Frame and remove FAN3.
  • Page 37 Epson DFX-9000 Field Repair Guide 3/29/07 Remove the two screws securing the Stopper BR to the Left Side Frame and remove the Stopper. Remove the three screws securing the Carriage Motor. Component Replacement Printer Component, Software Item, LCD Display, Printer Button...
  • Page 38 Epson DFX-9000 Field Repair Guide 3/29/07 Tilt the body of the Carriage Motor away from the printer to create slack in the Carriage Motor Belt. 10. Remove the Tension Pulley located on the Left Side Frame. 11. Pull the Carriage Motor to the right while guiding the Carriage Motor Belt through the Right Side Frame.
  • Page 39 Epson DFX-9000 Field Repair Guide 3/29/07 12. Remove the four screws that secure the Motor Bracket to the Carriage Motor. 13. Remove the Motor Bracket from the Carriage Motor. Component Replacement Printer Component, Software Item, LCD Display, Printer Button Page 30.

  • Page 40: Ribbon Drive Assembly Removal

    Epson DFX-9000 Field Repair Guide 3/29/07 Ribbon Drive Assembly Removal Note: The Upper Case & Mechanism removal procedure must be performed before the performing the steps below. Release the Cable Clamp securing the wiring harnesses depicted below. Remove the two screws securing the Platen Gap Motor to the Right Side Frame.
  • Page 41 Epson DFX-9000 Field Repair Guide 3/29/07 Pull the Platen Gap Motor away from the Right Side Frame. Disconnect the Ribbon Drive Unit Wiring Harnesses from connectors CNRMS and CNRFS on the Sensor Board. Remove the one screw securing the Ribbon Drive Unit to the Right Side Frame.
  • Page 42 Epson DFX-9000 Field Repair Guide 3/29/07 Pull the Ribbon Drive Unit away from the Right Side Frame and pull the wiring harnesses through the opening in the Right Side Frame. Component Replacement Printer Component, Software Item, LCD Display, Printer Button...

  • Page 43: Aptc Unit (Automatic Platen Gap) Assembly

    Epson DFX-9000 Field Repair Guide 3/29/07 APTC Unit (Automatic Platen Gap) Assembly Note: The Mechanism removal procedure must be followed before performing the steps below. Remove the wiring harness from connector CNAPTCS on the Sensor Board. Position the Tractor Select Cam towards the front of the printer.
  • Page 44 Epson DFX-9000 Field Repair Guide 3/29/07 Remove the two screws that secure the Platen Gap Assembly to the Left Side Frame. Remove the Platen Gap Assembly by pulling the Platen Gap Assembly away from the Left Side Frame. Component Replacement...

  • Page 45: Carrier Unit (Carriage Assembly) Removal

    Epson DFX-9000 Field Repair Guide 3/29/07 Carrier Unit (Carriage Assembly) Removal Note: The Mechanism, Print Head, Carriage Motor, and Platen Gap Assembly removal procedure must be performed before performing the steps below. Remove the four screws securing the Bearing Shaft Bracket.
  • Page 46 Epson DFX-9000 Field Repair Guide 3/29/07 Carefully slide the Stay Shaft (Carriage Guide Shaft) towards the left side of the printer. Remove the SS Bearing and washer from the right side of the Stay Shaft. Washer SS Bearing Slide the Stay Shaft to the left, removing it from the Carrier Unit (Carriage Assembly).
  • Page 47 Epson DFX-9000 Field Repair Guide 3/29/07 While holding the Carriage Assembly, pivot the Carriage Assembly away from the Guide Stay. Guide Stay Remove the two screws securing the SP Belt (Carriage Belt) to the Carriage Assembly. This will free the Carriage Assembly from the Mechanism.

  • Page 48: Lf Motor (Paperfeed Motor) Removal

    Epson DFX-9000 Field Repair Guide 3/29/07 LF Motor (Paperfeed Motor) Removal Note: The Mechanism removal procedure must be performed before performing the steps below. Match the opening in the Pulley Gear to the LF Motor (Paper Feed Motor) mounting screw as shown below.
  • Page 49 Epson DFX-9000 Field Repair Guide 3/29/07 Remove the LF Motor from the Left Side Frame. Remove the LF Motor wiring harness connector from the LF Motor. Component Replacement Printer Component, Software Item, LCD Display, Printer Button Page 40.

  • Page 50: Main Logic Board Removal

    Epson DFX-9000 Field Repair Guide 3/29/07 Main Logic Board Removal Note: Perform the Mechanism removal procedure before performing the steps below. Looking at the back of the Lower Case, remove the two screws that secure the Cover Plate of the Type B Option Slot .
  • Page 51 Epson DFX-9000 Field Repair Guide 3/29/07 Remove the two screws that secure the Guide Plate. Remove the Guide Plate. Slide the Guide Rail away from the Main Logic Board. Component Replacement Printer Component, Software Item, LCD Display, Printer Button Page 42.
  • Page 52 Epson DFX-9000 Field Repair Guide 3/29/07 Remove the five screws that secure the Interface Plate to the Main Logic Board. 10. Remove the Interface Plate from the Main Logic Board. Component Replacement Printer Component, Software Item, LCD Display, Printer Button...

  • Page 53: Front Tractor Removal

    Epson DFX-9000 Field Repair Guide 3/29/07 Front Tractor Removal Complete the Mechanism removal procedure Move the BLUE TRACTOR LOCKS of both the TRACTOR FL UNIT and TRACTOR FR UNIT to the position marked “FREE”. TRACTOR FL UNIT TRACTOR FR UNIT...
  • Page 54 Epson DFX-9000 Field Repair Guide 3/29/07 Lift the two CENTER GUIDES upward, and remove them from the SUB SHAFT and TRACTOR SHAFT. CENTER GUIDES TRACTOR SHAFT SUB SHAFT Printer Component, Software Item, LCD Display, Printer Button Page 45.
  • Page 55 Epson DFX-9000 Field Repair Guide 3/29/07 Release the FTRPE SENSOR CABLE from the three CABLE CLAMPS on the bottom rear of the PRINTER. CABLE CLAMP Printer Component, Software Item, LCD Display, Printer Button Page 46.
  • Page 56 Epson DFX-9000 Field Repair Guide 3/29/07 Disconnect the FTRPE SENSOR CABLE from the SENSOR BOARD UNIT (CNFTRPES: 3 pins), and pull the FTRPE SENSOR CABLE out through the hole in the left side of the FRAME. FTRPE SENSOR CABLE and CONNECTOR...
  • Page 57 Epson DFX-9000 Field Repair Guide 3/29/07 Release the FTRPE SENSOR CABLE from the CABLE CLAMP on the outside of the left side of the FRAME. CABLE CLAMP on the outside of the left side of the FRAME. Printer Component, Software Item,...
  • Page 58 Epson DFX-9000 Field Repair Guide 3/29/07 Pull the FTRPE SENSOR CABLE inside the frame through the hole in the left side of the frame, and then release the FTRPE SENSOR CABLE from the CLAMP on the inside of the left side of the frame.
  • Page 59 Epson DFX-9000 Field Repair Guide 3/29/07 Remove the two C.P. (S-P1) 3 x 10 SCREWS that secure the SUB SHAFT to the left and right sides of the Frame C.P. (S-P1) 3 X 10 SCREW at left side of the SUB SHAFT C.P.
  • Page 60 Epson DFX-9000 Field Repair Guide 3/29/07 Move the SUB SHAFT to the recess hole in the left side of the FRAME, and then pull out the SUB SHAFT. Recess hole in left side of FRAME SUB SHAFT Printer Component, Software Item,...
  • Page 61 Epson DFX-9000 Field Repair Guide 3/29/07 10. Remove the E-RING that secures the right end of the TRACTOR SHAFT to the right side of the FRAME, and remove the WASHER, SPRING WASHER, and the TRACTOR SHAFT BEARING. E-RING that secures the right end of the TRACTOR SHAFT...
  • Page 62 Epson DFX-9000 Field Repair Guide 3/29/07 11. Pull the TRACTOR SHAFT out through the hole in the left side of the FRAME. TRACTOR SHAFT Printer Component, Software Item, LCD Display, Printer Button Page 53.

  • Page 63: Front Tractor Installation

    Epson DFX-9000 Field Repair Guide 3/29/07 Front Tractor Installation When reassembling the FRONT TRACTOR you must match the positions of the PHASE MARKS of both the TRACTOR FL UNIT and TRACTOR FR UNIT. Position the PHASE MARKS by moving the TRACTORS before installing the TRACTOR SHAFT.
  • Page 64 Epson DFX-9000 Field Repair Guide 3/29/07 Install the TRACTOR SHAFT BEARING into the TRACTOR SHAFT HOLE (from the outside), at the right side of the FRAME. Note: Both the TRACTOR SHAFT BEARINGS and the TRACTOR SHAFT HOLES are keyed. TRACTOR SHAFT BEARING...
  • Page 65 Epson DFX-9000 Field Repair Guide 3/29/07 Install the TRACTOR SHAFT BEARING into the TRACTOR SHAFT HOLE (from the outside), at the left side of the frame. TRACTOR SHAFT BEARING TRACTOR SHAFT HOLE Printer Component, Software Item, LCD Display, Printer Button...
  • Page 66 Epson DFX-9000 Field Repair Guide 3/29/07 Slide the TRACTOR SHAFT through the left TRACTOR SHAFT BEARING and through the TRACTOR FL UNIT. NOTE: When reassembling the left front tractor, secure the FTRPE SENSOR CABLE with the CABLE CLAMPS, ensure that there isn’t too much tension when moving the TRACTOR FL UNIT to the right, and that the cable does not interfere with the TRACTOR SHAFT when moving the TRACTOR FL UNIT to the left.
  • Page 67 Epson DFX-9000 Field Repair Guide 3/29/07 Attach the SPRING WASHER to the TRACTOR SHAFT with the exterior of its curve facing the TRACTOR SHAFT BEARING. Attach the WASHER to the TRACTOR SHAFT. Attach the E-RING to the TRACTOR SHAFT. E-RING...
  • Page 68 Epson DFX-9000 Field Repair Guide 3/29/07 Slide the SUB SHAFT through the SUB SHAFT HOLES in the frame, the TRACTOR FL UNIT and TRACTOR FR UNIT. Left SUB SHAFT HOLE Right SUB SHAFT HOLE Printer Component, Software Item, LCD Display, Printer Button Page 59.
  • Page 69 Epson DFX-9000 Field Repair Guide 3/29/07 Ensure that the SUB SHAFT rests in the keyed slots in the SUB SHAFT HOLES. Left SUB SHAFT HOLE Right SUB SHAFT HOLE Printer Component, Software Item, LCD Display, Printer Button Page 60.
  • Page 70 Epson DFX-9000 Field Repair Guide 3/29/07 10. Secure the SUB SHAFT to the FRAME with the two C.P. (S-P1) 3X10 SCREWS. C.P. (S-P1) 3 X 10 SCREW at left side of the SUB SHAFT C.P. (S-P1) 3 X 10 SCREW C.P.
  • Page 71 Epson DFX-9000 Field Repair Guide 3/29/07 11. Attach the two CENTER GUIDES to the SUB SHAFT and TRACTOR SHAFT by hooking them under the TRACTOR SHAFT and clipping them downward onto the SUB SHAFT. CENTER GUIDES TRACTOR SHAFT SUB SHAFT...

  • Page 72: Rear Tractor Removal

    Epson DFX-9000 Field Repair Guide 3/29/07 Rear Tractor Removal Complete the Mechanism removal procedure. Complete the Carriage Motor (SP Motor) removal procedure. Move the BLUE TRACTOR LOCKS of both the TRACTOR RL UNIT and TRACTOR RR UNIT to the position marked “FREE”.
  • Page 73 Epson DFX-9000 Field Repair Guide 3/29/07 Remove the two C.B.S. 3 x 6 screws that secure the FAN3 MOTOR and FAN BRACKET to the right side of the frame. C.B.S. 3 x 6 screw FAN3 MOTOR FAN BRACKET Printer Component,...
  • Page 74 Epson DFX-9000 Field Repair Guide 3/29/07 Release the RTRPE SENSOR CABLE from the three CABLE CLAMPS on the bottom rear of the printer, and then disconnect it from the SENSOR BOARD UNIT. CABLE CLAMP SENSOR BOARD RTRPE SENSOR CONNECTOR Printer Component,...
  • Page 75 Epson DFX-9000 Field Repair Guide 3/29/07 Pull the RTRPE SENSOR CABLE inside the printer through the hole in the left side of the frame near the TRACTOR RL UNIT. RTRPE SENSOR CABLE Printer Component, Software Item, LCD Display, Printer Button...
  • Page 76 Epson DFX-9000 Field Repair Guide 3/29/07 Remove the TENSION PULLEY UNIT from the left side of the frame by removing one C.B.S. 3 x 6 screw. C.B.S. 3 x 6 screw TENSION PULLEY UNIT Printer Component, Software Item, LCD Display, Printer Button Page 67.
  • Page 77 Epson DFX-9000 Field Repair Guide 3/29/07 Remove the LF BELT from the left side of the frame. LF BELT Printer Component, Software Item, LCD Display, Printer Button Page 68.
  • Page 78 Epson DFX-9000 Field Repair Guide 3/29/07 Remove the three E-RINGS securing the two DV GEARS and TENSION PULLEY to the OC SLIDE CAM L. UPPER DV GEAR with BELT GUIDE and E-RING TENSION PULLEY and E-RING LOWER DV GEAR with E-RING...
  • Page 79 Epson DFX-9000 Field Repair Guide 3/29/07 10. Remove the UPPER DV GEAR with the BELT GUIDE. UPPER DV GEAR BELT GUIDE Printer Component, Software Item, LCD Display, Printer Button Page 70.
  • Page 80 Epson DFX-9000 Field Repair Guide 3/29/07 11. Remove the TENSION PULLEY and LOWER DV GEAR. TENSION PULLEY LOWER DV GEAR Printer Component, Software Item, LCD Display, Printer Button Page 71.
  • Page 81 Epson DFX-9000 Field Repair Guide 3/29/07 12. Remove the OC SLIDE CAM L from the left side of the frame. OC SLIDE CAM L Printer Component, Software Item, LCD Display, Printer Button Page 72.
  • Page 82 Epson DFX-9000 Field Repair Guide 3/29/07 13. Remove the E-RING that secures the PULLEY GEAR to the left side of the frame, and remove the PULLEY GEAR. E-RING PULLEY GEAR Printer Component, Software Item, LCD Display, Printer Button Page 73.
  • Page 83 Epson DFX-9000 Field Repair Guide 3/29/07 14. Remove the three C.B.S. 3 x 6 screws securing the CARRIAGE MOTOR to the right side of the frame. C.B.S. 3 x 6 screw CARRIAGE MOTOR Printer Component, Software Item, LCD Display, Printer Button...
  • Page 84 Epson DFX-9000 Field Repair Guide 3/29/07 15. Pull the CARRIAGE MOTOR away from the frame and turn it clockwise to expose the right side of the UPPER REAR TRACTOR SHAFT. CARRIAGE MOTOR REAR UPPER TRACTOR SHAFT Printer Component, Software Item,...
  • Page 85 Epson DFX-9000 Field Repair Guide 3/29/07 16. Remove the E-Ring, WASHER, SPRING WASHER, and TRACTOR BEARING from the right side of the REAR UPPER TRACTOR SHAFT. REAR UPPER TRACTOR SHAFT E-Ring WASHER SPRING WASHER TRACTOR BEARING Printer Component, Software Item,...
  • Page 86 Epson DFX-9000 Field Repair Guide 3/29/07 17. Remove the REAR UPPER TRACTOR SHAFT, TR GEAR 2, and TRACTOR BEARING from the left side of the frame REAR UPPER REAR TRACTOR SHAFT TR GEAR 2 TRACTOR BEARING Printer Component, Software Item,...
  • Page 87 Epson DFX-9000 Field Repair Guide 3/29/07 18. Remove the E-Ring, WASHER, SPRING WASHER, and TRACTOR BEARING from the right side of the REAR LOWER TRACTOR SHAFT REAR LOWER TRACTOR SHAFT E-Ring WASHER SPRING WASHER TRACTOR BEARING Printer Component, Software Item,...
  • Page 88 Epson DFX-9000 Field Repair Guide 3/29/07 19. Remove the LOWER REAR TRACTOR SHAFT, TR GEAR 3, and TRACTOR SHAFT BEARING from the left side of the frame. LOWER REAR TRACTOR SHAFT TR GEAR 3 TRACTOR SHAFT BEARING Printer Component, Software Item,...
  • Page 89 Epson DFX-9000 Field Repair Guide 3/29/07 20. Remove the two C.P. (S-P1) 3 x 10 screws that secure the SUB SHAFT to the left and right sides of the frame. C.P. (S-P1) 3 x 10 screw Left side of SUB SHAFT with C.P. (S-P1) 3 x 10 screw...
  • Page 90 Epson DFX-9000 Field Repair Guide 3/29/07 Right side of SUB SHAFT with C.P. (S-P1) 3 x 10 screw Printer Component, Software Item, LCD Display, Printer Button Page 81.
  • Page 91 Epson DFX-9000 Field Repair Guide 3/29/07 21. Lift the SUB SHAFT up and out of the recessed holes in the left and right side of the frame, and pull it out of the printer through the right side. SUB SHAFT...
  • Page 92 Epson DFX-9000 Field Repair Guide 3/29/07 22. Remove the TRACTOR RL UNIT and TRACTOR RR UNIT from inside the printer. Printer Component, Software Item, LCD Display, Printer Button Page 83.
  • Page 93 Epson DFX-9000 Field Repair Guide 3/29/07 23. Remove the three SPRINGS and two CENTER GUIDES from inside the printer. SPRING CENTER GUIDE Printer Component, Software Item, LCD Display, Printer Button Page 84.

  • Page 94: Rear Tractor Installation

    Epson DFX-9000 Field Repair Guide 3/29/07 Rear Tractor Installation When reassembling the REAR TRACTOR, you must match the positions of the Phase Marks of both the TRACTOR RL UNIT and TRACTOR RR UNIT, as well as the Black TABS of both SPROCKET WHEELS.
  • Page 95 Epson DFX-9000 Field Repair Guide 3/29/07 Install the UPPER REAR TRACTOR SHAFT BEARING into the UPPER REAR TRACTOR SHAFT hole (from the outside), at the left side of the frame. Note: Both the TRACTOR SHAFT Bearings and the TRACTOR SHAFT Holes are keyed.
  • Page 96 Epson DFX-9000 Field Repair Guide 3/29/07 Install the UPPER REAR TRACTOR SHAFT with TR GEAR 2 connected into the UPPER REAR TRACTOR SHAFT Bearing at the left side of the frame. UPPER REAR TRACTOR SHAFT with TR GEAR 2 UPPER REAR TRACTOR BEARING...
  • Page 97 Epson DFX-9000 Field Repair Guide 3/29/07 Slide the TRACTOR RL UNIT onto the REAR UPPER TRACTOR SHAFT through the SPROCKET WHEEL, and position it between the left and right Guide Positions. NOTE: When installing the TRACTOR RL UNIT, ensure that there isn’t too much tension on the RTRPE sen- sor cable when moving the TRACTOR FL UNIT between the left and right Guide Positions.
  • Page 98 Epson DFX-9000 Field Repair Guide 3/29/07 Install the three TENSION SPRINGS, two GUIDE WHEELS, and the TRACTOR RR UNIT to the REAR UPPER TRACTOR SHAFT. TENSION SPRING GUIDE WHEEL TRACTOR RR UNIT Printer Component, Software Item, LCD Display, Printer Button...
  • Page 99 Epson DFX-9000 Field Repair Guide 3/29/07 Install the TRACTOR SHAFT BEARING, SPRING WASHER, WASHER, and E-Ring, to the right side of the UPPER REAR TRACTOR SHAFT. Note: Both the TRACTOR SHAFT Bearing and the TRACTOR SHAFT Hole are keyed. Install the Spring Washer with the curve towards the TRACTOR SHAFT BEARING.
  • Page 100 Epson DFX-9000 Field Repair Guide 3/29/07 Gently pull the CARRIAGE MOTOR away from the frame and turn it counter-clockwise to line it up with its keyed screw holes, and then reinstall the three C.B.S. 3 x 6 screws. C.B.S. 3 x 6 screw...
  • Page 101 Epson DFX-9000 Field Repair Guide 3/29/07 Install the LOWER REAR TRACTOR SHAFT BEARING into the LOWER REAR TRACTOR SHAFT hole (from the outside), at the left side of the frame LOWER REAR TRACTOR SHAFT hole TRACTOR SHAFT BEARING Printer Component,...
  • Page 102 Epson DFX-9000 Field Repair Guide 3/29/07 Install the LOWER REAR TRACTOR SHAFT with TR GEAR 3 into the TRACTOR SHAFT BEARING and through the TRACTOR RL UNIT and TRACTOR RR UNIT. NOTE: The Phase Marks on both TR GEAR 2 and TR GEAR 3 are aligned with each other.
  • Page 103 Epson DFX-9000 Field Repair Guide 3/29/07 10. Route the RTRPE Sensor Cable out through the hole in the left side of the frame, and in through the hole towards the front of the left side of the frame. RTRPE Sensor Cable...
  • Page 104 Epson DFX-9000 Field Repair Guide 3/29/07 11. Install the TRACTOR SHAFT BEARING, SPRING WASHER, WASHER, and E-Ring, to the right side of the LOWER REAR TRACTOR SHAFT Note: Both the TRACTOR SHAFT Bearing and the TRACTOR SHAFT Hole are keyed. Install the Spring...
  • Page 105 Epson DFX-9000 Field Repair Guide 3/29/07 12. Route the RTRPE Sensor Cable through the two Cable Clamps at the bottom of the frame, and then reconnect it to the SENSOR BOARD at connector CNRTRPES. Cable Clamps Connector CNRTRPES Printer Component,...
  • Page 106 Epson DFX-9000 Field Repair Guide 3/29/07 13. Place the SUB SHAFT into the recessed holes in the left and right side of the frame, and then reinstall the two C.P. (S-P1) 3 x 10 screws into its left and right side.
  • Page 107 Epson DFX-9000 Field Repair Guide 3/29/07 Right side of SUB SHAFT with C.P. (S-P1) 3 x 10 screw Printer Component, Software Item, LCD Display, Printer Button Page 98.
  • Page 108 Epson DFX-9000 Field Repair Guide 3/29/07 14. Rotate the OC MOTOR GEAR clockwise or counterclockwise until the Phase Mark of the left OC CAM is shown through the window of the left OC SLIDE. OC MOTOR GEAR OC CAM OC CAM Phase Mark...
  • Page 109 Epson DFX-9000 Field Repair Guide 3/29/07 OC CAM Phase Mark Left OC SLIDE Printer Component, Software Item, LCD Display, Printer Button Page 100.
  • Page 110 Epson DFX-9000 Field Repair Guide 3/29/07 15. Install the Left OC CAM into the Left OC SLIDE so that its Phase Mark shows through the window of the Left OC CAM SLIDE, and then reinstall the Left OC SLIDE and OC CAM.
  • Page 111 Epson DFX-9000 Field Repair Guide 3/29/07 16. Install the keyed NIP GEAR on the left side of the keyed NIP ROLLER SHAFT. NIP GEAR NIP GEAR installed on NIP ROLLER SHAFT Printer Component, Software Item, LCD Display, Printer Button Page 102.
  • Page 112 Epson DFX-9000 Field Repair Guide 3/29/07 17. Install a DV ROLLER to the left side of the DV ROLLER R ASY SHAFT and the DV ROLLER F ASY SHAFT. DV ROLLER DV ROLLER and R ASY SHAFT DV ROLLER and F ASY SHAFT...
  • Page 113 Epson DFX-9000 Field Repair Guide 3/29/07 NOTE: When installing the DV ROLLERS push the right end of each DV ROLLER SHAFT to ENSURE each is fully extended at the left side of the frame. DV ROLLER ASY SHAFT R (right side)
  • Page 114 Epson DFX-9000 Field Repair Guide 3/29/07 18. Install the TENSION PULLEY, BELT GUIDE to the OC SLIDE CAM assembly TENSION PULLEY TENSION PULLEY installed Printer Component, Software Item, LCD Display, Printer Button Page 105.
  • Page 115 Epson DFX-9000 Field Repair Guide 3/29/07 19. Install the BELT GUIDE to the left side of the DV ROLLER R assembly. BELT GUIDE BELT GUIDE installed Printer Component, Software Item, LCD Display, Printer Button Page 106.
  • Page 116 Epson DFX-9000 Field Repair Guide 3/29/07 20. Install an E-Ring to secure both DV ROLLERS and the TENSION PULLEY. E-Ring Printer Component, Software Item, LCD Display, Printer Button Page 107.
  • Page 117 Epson DFX-9000 Field Repair Guide 3/29/07 21. Reinstall the OC SENSOR BR UNIT using one C.P. (S-P1) 3 x 8 screw C.P. (S-P1) 3 x 8 screw OC SENSOR BR UNIT Printer Component, Software Item, LCD Display, Printer Button Page 108.
  • Page 118 Epson DFX-9000 Field Repair Guide 3/29/07 22. Reinstall the TENSION PULLEY UNIT by using one C.P. (S-P1) 3 x 6 screw C.P. (S-P1) 3 x 6 screw TENSION PULLEY Printer Component, Software Item, LCD Display, Printer Button Page 109.
  • Page 119 Epson DFX-9000 Field Repair Guide 3/29/07 23. Reinstall the LF BELT and tighten the TENSION PULLEY LF BELT TENSION PULLEY Printer Component, Software Item, LCD Display, Printer Button Page 110.
  • Page 120 Epson DFX-9000 Field Repair Guide 3/29/07 Troubleshooting Troubleshooting Printer Component, Software Item, LCD Display, Printer Button Page 111.

  • Page 121: Troubleshooting

    Epson DFX-9000 Field Repair Guide 3/29/07 Troubleshooting Preliminary Checks Before troubleshooting the printer, verify that each of the following conditions are met: Verify that the wall socket supplies clean AC current that matches the voltage rating on the printer. Measure the voltage at the wall socket.

  • Page 122: Power-On Initialization Sequence

    Epson DFX-9000 Field Repair Guide 3/29/07 Power-on initialization sequence. The following flow chart illustrates the sequence of steps the printer should complete during initialization at power-on Troubleshooting Printer Component, Software Item, LCD Display, Printer Button Page 113.
  • Page 123 Epson DFX-9000 Field Repair Guide 3/29/07 The following 2 page flow chart illustrates the sequence of steps the printer’s mechanism should complete during ini- tialization at power-on. Troubleshooting Printer Component, Software Item, LCD Display, Printer Button Page 114.
  • Page 124 Epson DFX-9000 Field Repair Guide 3/29/07 Troubleshooting Printer Component, Software Item, LCD Display, Printer Button Page 115.

  • Page 125: Error / Warning Messages

    Epson DFX-9000 Field Repair Guide 3/29/07 Error / Warning Messages The following table is a list of general errors that might be generated by the printer. These errors can be indicated through beeper sounds, LCD messages, and/or LEDs. This table describes the cause of the errors (Status), and the appropriate action(s) which should be taken to resolve them.
  • Page 126 Epson DFX-9000 Field Repair Guide 3/29/07 Table 1: List of General Errors Beeper sounds LCD Message Status Remedy Paper Tear Top of (see below) Pause Front Rear Form Error: Ribbon jam error: The Remove and re-install, or Ribbon jam ribbon has jammed.

  • Page 127: Fatal Errors

    Epson DFX-9000 Field Repair Guide 3/29/07 Fatal Errors Error log information is stored in the EEPROM (non-volatile memory) located on the main board. Use the adjustment program to retrieve the error log information. To access the printer with the Adjustment Program while in a fatal error state:...

  • Page 128: O2: Cr Driver Error

    Epson DFX-9000 Field Repair Guide 3/29/07 Place the ohmmeter test leads across the SP Motor windings. Subtract the value obtained in Step 2 from the value displayed in Step 3. The result is the actual resistance of the SP Motor.

  • Page 129: O3: Cr Horizontal Position Error

    Epson DFX-9000 Field Repair Guide 3/29/07 O3: CR Horizontal Position Error Cause: The SP Motor brake signal did not switch on within 3 seconds after turning the printer on. Action: Check for obstructions in the Carriage area. Check for proper lubrication of the Carrier Unit (Carriage Assy) and Stay Shaft (Carriage Guide Shaft).

  • Page 130: O4: Lf Driver Error

    Epson DFX-9000 Field Repair Guide 3/29/07 O4: LF Driver Error Cause: Abnormal current to the LF Motor or one phase of the LF Motor was energized for too long a time period. Action: Test all four (4) windings of the LF Motor (Line Feed Motor) with an ohmmeter (See note below).

  • Page 131: O6: High Voltage Error

    Epson DFX-9000 Field Repair Guide 3/29/07 O6: High Voltage Error Cause: Either the +42vdc (motor drive voltage) or the +37vdc (print head drive voltage) is too high. Action: Replace the Power Supply. Replace the ROM Board. O7: Low Voltage Error Cause: Either the +42vdc (motor drive voltage) or the +37vdc (print head drive voltage) is too low.

  • Page 132: O9: Fan1 Driver Error

    Epson DFX-9000 Field Repair Guide 3/29/07 O9: Fan1 Driver Error Cause: Fan1 not rotating. Action: Check the FAN1 connection on the Sensor Board (CNFAN1). Replace FAN1. Check the Fan Alarm Sensor and +42vdc connections on the ROM Board (CNSEN1 and CNSEN2 respectively).

  • Page 133: Ob: Fan3 Driver Error

    Epson DFX-9000 Field Repair Guide 3/29/07 OB: Fan3 Driver Error Cause: Fan3 not rotating. Action: Check the FAN3 connection on the Sensor Board (CNFAN3). Replace FAN3. Check the Fan Alarm Sensor and 42vdc connections on the ROM Board (CNSEN1 and CNSEN2 respectively).

  • Page 134: Od: No Head Error

    Epson DFX-9000 Field Repair Guide 3/29/07 OD: No Head Error Cause: Could not detect the presence of the Print Head. During power-on initialization, the print head thermistor is checked. This error is caused by not getting a valid reading from the print head thermistor.

  • Page 135: Of: Aptc Error

    Epson DFX-9000 Field Repair Guide 3/29/07 OF: APTC Error Cause: Could not detect the APTC (Automatic Paper Thickness Control) Home Position. Action: Check connectors CNSEN1 and CNSEN2 on the ROM Board for proper seating of the cables. Test all four (4) windings of the APTC Motor with an ohmmeter (See note below).

  • Page 136: 11: Ribbon Feed Driver Error

    Epson DFX-9000 Field Repair Guide 3/29/07 11: Ribbon Feed Driver Error Cause: The Ribbon Feed Motor malfunctioned, one of the Ribbon Feed Motor drive circuits malfunctioned or a wind- ing of the Ribbon Feed Motor was energized too long. Action:...

  • Page 137: 13: Hcpp (Host-Computer Controlled Paper Path) Driver Error

    Epson DFX-9000 Field Repair Guide 3/29/07 Short the ohmmeter test leads together and note the value displayed on the ohmmeter. Place the ohmmeter test leads across each of the RF Motor windings. Subtract the value obtained in Step 2 from each of the values displayed in Step 3. The result is the actual resistance of the RF Motor.

  • Page 138: 14: Hcpp (Host-Computer Controlled Paper Path) Error

    Epson DFX-9000 Field Repair Guide 3/29/07 14: HCPP (Host-computer Controlled Paper Path) Error Cause: Did not detect that paper path switching occurred during a paper path switching operation. Action: Check for proper connections at connectors CNSEN1 and CNSEN2 on the ROM Board.

  • Page 139: 16: O/C Error

    Epson DFX-9000 Field Repair Guide 3/29/07 Note: A weak ohmmeter battery, uncalibrated ohmmeter, and ohmmeter test lead resistance will cause an inaccurate resistance reading. To obtain an accurate resistance reading, test the O/C Motor as follows: Set the ohmmeter on its lowest resistance scale.

  • Page 140: 17: Pc (Perforation Cutter) Driver Error

    Epson DFX-9000 Field Repair Guide 3/29/07 17: PC (Perforation Cutter) Driver Error Cause: A winding in the PC Motor was energized too long. Action: Check for proper connection of the PC Motor at connector CNSEN1 on the ROM Board. Replace the Perforation Cutter Unit.

  • Page 141: Troubleshooting Based On Symptoms

    Epson DFX-9000 Field Repair Guide 3/29/07 Troubleshooting Based on Symptoms The following section provides a list of typical symptoms exhibited by the printer when a failure has occurred. This section describes the appropriate actions which should be taken to accurately troubleshoot the cause of the failure based upon the symptoms exhibited by the printer No Control Panel LED’s light...

  • Page 142: No Initialization, Control Panel Led's Are Lit

    Epson DFX-9000 Field Repair Guide 3/29/07 No initialization, Control Panel LED’s are lit Action: Verify that the Top Cover is closed. Check, and if necessary replace the CO SW Assy (Cover Open Switch Assy). Check, and if necessary replace the OP Cable and connections.

  • Page 143: Self Test Ok, No Print From Host Computer

    Epson DFX-9000 Field Repair Guide 3/29/07 Self Test OK, no print from Host Computer Action: Check that the data I/O cable is functional and it is connected correctly to the printer and host computer. Enter Setup mode on the Control Panel, and make sure the interface setting matches the connection to the host computer.

  • Page 144: Some Dots Missing Or Extra Dots Printed

    Epson DFX-9000 Field Repair Guide 3/29/07 Some dots missing or extra dots printed Action: Clean or replace the CES Scale. Verify that the Carrier Cable Unit is correctly connected to the ROM Board and the Print Head. Replace the Carrier Cable Unit.

  • Page 145: Smudges On Paper

    Epson DFX-9000 Field Repair Guide 3/29/07 Smudges on paper Action: Verify that the Ribbon Cartridge is correctly installed. Check that the ribbon is in good condition (no excessive wear, is not frayed, or has unravelled). Clean the Print Head so that it is free of ink or ribbon dust.

  • Page 146: Missing Portions Of The Print

    Epson DFX-9000 Field Repair Guide 3/29/07 Missing portions of the print • The ribbon has excess slack. • The ribbon is bent or folded. • The ribbon path at the print head is too high or too low. • The ribbon is twisted.

  • Page 147: Ribbon Jam Error

    Epson DFX-9000 Field Repair Guide 3/29/07 Ribbon Jam Error Action: Reinstall the Ribbon Cartridge. If the Ribbon Cartridge is defective, replace it. If “false” ribbon jam errors occur (Ribbon Jam Error occurs but the ribbon moves freely), replace the RF Unit.

  • Page 148: Paper Path Does Not Switch Properly

    Epson DFX-9000 Field Repair Guide 3/29/07 Paper path does not switch properly Action: Replace the HCPP Sensor Unit. Replace the HCPP Motor. Replace the PR Mecha Assy. Replace the ROM Board. Paper Load Position (TOF) is incorrect Action: Verify that the paper meets the Paper Specifications of the printer as described in Chapter 1 of the Service Manual.

  • Page 149: No Paper Unload When Rear Paper Path Used

    Epson DFX-9000 Field Repair Guide 3/29/07 No paper unload when Rear Paper Path used Action: Check the RTRPE Sensor (Rear Tractor Paper Empty Sensor). Replace the ROM Board. Paper not loaded or ejected Action: Perform the TOF Sensor Sensitivity Adjustment Replace the TOF Sensor (part of the Card Guide Assy).

  • Page 150: Paper Skew

    Epson DFX-9000 Field Repair Guide 3/29/07 Paper skew Action: Verify that the paper is within all specifications. Make sure the paper is mounted correctly and evenly in the tractors. Ensure the left and right tractor phasing is correct. SelecType to change the Platen Gap settings for manual.

  • Page 151: Control Panel Led's Lit Improperly, Printer Functions Correctly

    Epson DFX-9000 Field Repair Guide 3/29/07 Control Panel LED’s lit improperly, printer functions correctly Action: Check the OP Cable connection between the OP Board and ROM Board. Replace the OP Cable. Replace the OP Unit. Replace the ROM Board. One or more Control Panel buttons inoperable Action: Check whether the printer is “Paused”, and if so, depress the...

  • Page 152: Print Head Diagrams

    Epson DFX-9000 Field Repair Guide 3/29/07 Print Head Diagrams Troubleshooting Printer Component, Software Item, LCD Display, Printer Button Page 143.
  • Page 153 Epson DFX-9000 Field Repair Guide 3/29/07 Table 0-1. Contact (lead) Front PCB Front PCB Rear PCB Rear PCB number side A side B side A side B SEN1 SEN2 R-7 pin L-7 pin R-7 pin L-7 pin R-5 pin l-5 pin...

  • Page 154: Sensors And Switches Test Points

    Epson DFX-9000 Field Repair Guide 3/29/07 Sensors and Switches Test Points SENSOR POWER RED LEAD BLACK LEAD ACTION METER READING APTCHP Disconnect the APTC Toggles between 0 and CNAPTCHPS CNAPTCHPS MOTOR from the 5VDC (AUTOMATIC Place the red Place the black...
  • Page 155 Epson DFX-9000 Field Repair Guide 3/29/07 SENSOR POWER RED LEAD BLACK LEAD ACTION METER READING APTC At the APTC At the APTC Slowly rotate the Both outputs toggle SENSOR SENSOR CARRIAGE SHAFT between 0 and 5 VDC (AUTOMATIC forward and then...
  • Page 156 Epson DFX-9000 Field Repair Guide 3/29/07 SENSOR POWER RED LEAD BLACK LEAD ACTION METER READING AT the CES At the CES Slowly move the Both outputs toggle CARRIAGE left and between 0 and 5 VDC (CARRIAGE Pin 1 right along the ENCODER CARRIAGE SHAFT.
  • Page 157 Epson DFX-9000 Field Repair Guide 3/29/07 SENSOR POWER RED LEAD BLACK LEAD ACTION METER READING FTRPE At CNFTRPES At CNFTRPES Press and release the Toggles between 0 and place the red place the black ACTUATOR ARM on 5VDC. (FRONT lead on pin 1.
  • Page 158 Epson DFX-9000 Field Repair Guide 3/29/07 SENSOR POWER RED LEAD BLACK LEAD ACTION METER READING OCS2 At CNOCS2 At CNOCS2 Fully rotate the FRONT Toggles between 0 and (Open/Close place the red place the black GEAR WHEEL 5VDC. Sensor 2) lead on pin 1.
  • Page 159 Epson DFX-9000 Field Repair Guide 3/29/07 SENSOR POWER RED LEAD BLACK LEAD ACTION METER READING At CNRMS At CNRMS Press and release the Toggles between 0 and place the red place the black RMS SWITCH. 5VDC (RIBBON lead on pin 1.

  • Page 160: Motor Test Points

    Epson DFX-9000 Field Repair Guide 3/29/07 SENSOR POWER RED LEAD BLACK LEAD ACTION METER READING TOFR At the TOFR At the TOFR Slide paper between the Toggles between 0 and SENSOR SENSOR CARD GUIDE 2.5VDC (TOP OF Place the red...
  • Page 161 Epson DFX-9000 Field Repair Guide 3/29/07 Motor Test Points MOTOR POWER RED LEAD BLACK LEAD ACTION METER READING HCPP Pin 5 Disconnect the MOTOR 145 ~ 165 ohm MOTOR Pin 5 from the PRINTER Pin 5 before testing it. (HOST...
  • Page 162 Epson DFX-9000 Field Repair Guide 3/29/07 Motors, Sensors, and Switches Printer Component, Software Item, LCD Display, Printer Button Motors, Sensors, and Switches Page 153.

  • Page 163: Motors, Sensors And Switches

    Epson DFX-9000 Field Repair Guide 3/29/07 Motors, Sensors and Switches Motors SP Motor Traditionally called the Carriage Drive Motor, SP stands for “Space”. The SP Motor moves the Print Head and Car- rier Unit (Carriage Assembly) across the Carrier Shaft (Carriage Guide Shaft). The SP Motor is a brushless DC Motor driven by the 42 vdc Power Supply.

  • Page 164: Lf Motor

    Epson DFX-9000 Field Repair Guide 3/29/07 LF Motor LF stands for Line Feed. The LF Motor is a 4 wire stepper motor. The LF Motor moves paper through the printer dur- ing paper loading, paper unloading, tear off, paper path changing, printing and performing form feeds (advancing the paper to the next sheet).

  • Page 165: Oc Motor

    Epson DFX-9000 Field Repair Guide 3/29/07 OC Motor OC stands for “Open/Close”. The OC Motor is a 4 wire stepper motor that opens and closes the Paper Bail. Previous DFX family printers utilized a Paper Bail Solenoid to perform this function. The OC Motor drives the OC Slide Cams.These OC Slide Cams, located on the left and right frames, open and close the Paper Bail.

  • Page 166: Hcpp Motor

    Epson DFX-9000 Field Repair Guide 3/29/07 HCPP Motor HCPP stands for “Host-computer Control Paper Path”. The HCPP Motor is a 4 wire stepper motor that is used for switching between the two paper paths (front and rear). Previous DFX family printers utilized the Ribbon Drive Motor to accomplish paper path switching.

  • Page 167: Aptc Motor

    Epson DFX-9000 Field Repair Guide 3/29/07 APTC Motor Traditionally called the Platen Gap Motor, APTC stands for “Automatic Paper Thickness Control”. The APTC Motor is a 4 wire stepper motor that is used to detect the paper thickness. It also is used to set the platen gap (the air gap between the paper and the nose of the print head).

  • Page 168: Sensors And Switches

    Epson DFX-9000 Field Repair Guide 3/29/07 Sensors and Switches There are 22 sensors and switches utilized in the DFX-9000. Sensor Name (acronym) Function Automatic Paper Thickness Control Detects that the Carrier Unit reaches the furthest position by checking the Home Position Sensor...
  • Page 169 Epson DFX-9000 Field Repair Guide 3/29/07 Sensor Name (acronym) Function Open/Close Sensor 1 (OC) Works with OC Sensor 2 to determine the position of the Card Guide (Paper Bail). Open/Close Sensor 2 (OC) Works with OC Sensor 1 to determine the position of the Card Guide (Paper Bail).
  • Page 170 Epson DFX-9000 Field Repair Guide 3/29/07 Adjustments Adjustments Printer Component, Software Item, LCD Display, Printer Button Page 161.

  • Page 171: Adjustments

    Epson DFX-9000 Field Repair Guide 3/29/07 Adjustments APTC Unit Mount Position Adjustment This adjustment is required if you: • Remove or replace the Carrier Unit • Remove or replace the APTC Unit • Remove or replace the APTC HP Unit •...
  • Page 172 Epson DFX-9000 Field Repair Guide 3/29/07 decrease the backlash (allow less movement of Gear B). Lightly tighten the APTC Securing Screws to temporarily secure the position of the APTC Unit. Hold Gear C immobile with your finger, and slowly rotate Gear B back and forth. If the APTC Unit Mount Position is correct ((approximately 0.03 - 0.07mm of backlash), tighten the two APTC Securing Screws that secure the...

  • Page 173: Card Guide Mount Position Adjustment

    Epson DFX-9000 Field Repair Guide 3/29/07 Card Guide Mount Position Adjustment This adjustment is required if you: • Remove or replace the Carrier Unit • Remove or replace the Card Guide Assembly Tear off a piece of PinFeed Paper about 3 inches long, ensuring that the strip of paper contains at least 2 pinfeed holes.
  • Page 174 Epson DFX-9000 Field Repair Guide 3/29/07 Center one of the pinfeed holes over the Stopper Stud, located about 1/4 inch below the SS-Gear. Rotate Gear B clockwise until the bottom of the arm of the SS-Gear cuts across the center of the pinfeed hole immediately above the Stopper Stud.
  • Page 175 Epson DFX-9000 Field Repair Guide 3/29/07 Place 3 sheets of 20 lb. paper into the gap between the Card Guide and the Platen as shown below and lightly push the Card Guide against the paper. Tighten the 2 screws securing the Card Guide.
  • Page 176 Epson DFX-9000 Field Repair Guide 3/29/07 Verify that 3 sheets of paper will fit between the Platen and the Card Guide, but 4 sheets of paper will NOT fit between the Platen and the Card Guide. If the gap is not correct, repeat Steps 5 - 7.

  • Page 177: Parallelism Adjustment

    Epson DFX-9000 Field Repair Guide 3/29/07 Parallelism Adjustment This adjustment is required if you: • Loosen the Upper Angle Tear off a piece of PinFeed Paper about 3 inches long, ensuring that the strip of paper contains at least 2 pinfeed holes.
  • Page 178 Epson DFX-9000 Field Repair Guide 3/29/07 Center one of the pinfeed holes over the Stopper Stud, located about 1/4 inch below the SS-Gear. Rotate Gear B clockwise until the bottom of the arm of the SS-Gear cuts across the center of the pinfeed hole immediately above the Stopper Stud.
  • Page 179 Epson DFX-9000 Field Repair Guide 3/29/07 Move the Print Head to Column 1 of the Column Scale Bar. Slide a .40mm feeler gauge between the Platen and the nose of the Print Head. It might be necessary to use 2 or more size gauges to add up to .40mm.
  • Page 180 Epson DFX-9000 Field Repair Guide 3/29/07 If the .40mm feeler gauge will easily fit between the Print Head and the Platen, the gap is too wide. Loosen Screw A about 1/8 of a turn. To adjust the gap, insert a flat blade screwdriver into the opening to the left of Screw A.
  • Page 181 Epson DFX-9000 Field Repair Guide 3/29/07 If a .38mm feeler gauge will not fit between the Print Head and the Platen, the gap is too narrow. Loosen Screw A about 1/8 of a turn. To adjust the gap, insert a flat blade screwdriver into the opening to the left of Screw A.
  • Page 182 Epson DFX-9000 Field Repair Guide 3/29/07 Move the Print Head to Column 70 of the Column Scale Bar. 10. Slide a .40mm feeler gauge between the Platen and the nose of the Print Head. It might be necessary to use 2 or more size gauges to add up to .40mm.
  • Page 183 Epson DFX-9000 Field Repair Guide 3/29/07 11. If the .40mm feeler gauge will easily fit between the Print Head and the Platen, the gap is too wide. Loosen Screw B about 1/8 of a turn. To adjust the gap, insert a flat blade screwdriver into the opening to the left of Screw B.
  • Page 184 Epson DFX-9000 Field Repair Guide 3/29/07 12. If a .38mm feeler gauge will not fit between the Print Head and the Platen, the gap is too narrow. Loosen Screw B about 1/8 of a turn. To adjust the gap, insert a flat blade screwdriver into the opening to the left of Screw B.
  • Page 185 Epson DFX-9000 Field Repair Guide 3/29/07 13. Move the Print Head to Column 130 of the Column Scale Bar. 14. Slide a .40mm feeler gauge between the Platen and the nose of the Print Head. It might be necessary to use 2 or more size gauges to add up to .40mm.
  • Page 186 Epson DFX-9000 Field Repair Guide 3/29/07 15. If the .40mm feeler gauge will easily fit between the Print Head and the Platen, the gap is too wide. Loosen Screw C about 1/8 of a turn. To adjust the gap, insert a flat blade screwdriver into the opening to the right of Screw C.
  • Page 187 Epson DFX-9000 Field Repair Guide 3/29/07 16. If a .38mm feeler gauge will not fit between the Print Head and the Platen, the gap is too narrow. Loosen Screw C about 1/8 of a turn. To adjust the gap, insert a flat blade screwdriver into the opening to the right of Screw C.

  • Page 188: Aptc Thickness Detection Adjustment

    Mount one (1) sheet of 18# or 20# pinfeed paper onto the front set of tractors. Load the paper by depressing the LF/FF Load button on the Control Panel one (1) time. Run the DFX-9000 Adjustment Program. Select “DFX-9000” as the “Model Name”. Select “EAI” as the “Destination”. Adjustments Printer Component, Software Item,...
  • Page 189 Epson DFX-9000 Field Repair Guide 3/29/07 Select “Individual Adjustment Mode” as the “Program Type”. Click the “OK” button. Adjustments Printer Component, Software Item, LCD Display, Printer Button Page 180.
  • Page 190 Epson DFX-9000 Field Repair Guide 3/29/07 10. From the new window, select the I/O port to which the printer is connected. 11. Click the “OK” button. Adjustments Printer Component, Software Item, LCD Display, Printer Button Page 181.
  • Page 191 Epson DFX-9000 Field Repair Guide 3/29/07 12. Select “APTC Thickness Detection Adjustment” from the list of available adjustments. Adjustments Printer Component, Software Item, LCD Display, Printer Button Page 182.
  • Page 192 Epson DFX-9000 Field Repair Guide 3/29/07 13. Click on the “Enter adjustment mode” button. Adjustments Printer Component, Software Item, LCD Display, Printer Button Page 183.
  • Page 193 Epson DFX-9000 Field Repair Guide 3/29/07 14. A new window will open confirming that the printer has entered the APTC Thickness Detection Adjustment mode. Adjustments Printer Component, Software Item, LCD Display, Printer Button Page 184.
  • Page 194 Epson DFX-9000 Field Repair Guide 3/29/07 15. Displayed on the printer Control Panel’s LCD will be a message similar to “APG count write 1P=xxxx” where xxxx is a 4 digit hexadecimal number. 16. Press the Pause button on the printer’s Control Panel to register the displayed value. The printer will beep three (3) times.
  • Page 195 Epson DFX-9000 Field Repair Guide 3/29/07 18. Click the “OK” button. Click “OK” 19. Remove the paper from the printer. 20. Turn the printer on. Adjustments Printer Component, Software Item, LCD Display, Printer Button Page 186.
  • Page 196 Epson DFX-9000 Field Repair Guide 3/29/07 21. Fold eight (8) sheets of 18# or 20# pinfeed paper together to simulate a very thick form. 22. Mount the folded stack of eight (8) sheets of 18# or 20# pinfeed paper onto the front set of tractors.
  • Page 197 Epson DFX-9000 Field Repair Guide 3/29/07 24. Click on the “Enter adjustment mode” button. Adjustments Printer Component, Software Item, LCD Display, Printer Button Page 188.
  • Page 198 Epson DFX-9000 Field Repair Guide 3/29/07 25. A new window will open confirming that the printer has entered the APTC Thickness Detection Adjustment mode. Adjustments Printer Component, Software Item, LCD Display, Printer Button Page 189.
  • Page 199 Epson DFX-9000 Field Repair Guide 3/29/07 26. Displayed on the printer Control Panel’s LCD will be a message similar to “APG count write 10P = xxxx” where xxxx is a 4 digit hexadecimal number. 27. Press the Pause button on the printer’s Control Panel to register the displayed value. The printer will beep three (3) times.
  • Page 200 Epson DFX-9000 Field Repair Guide 3/29/07 29. Click the “OK” button. Click “OK” 30. Depress the “Finish” button. 31. The APTC Thickness Detection Adjustment is complete. Adjustments Printer Component, Software Item, LCD Display, Printer Button Page 191.

  • Page 201: Aptc Detection Position Adjustment

    Mount one (1) sheet of 18# or 20# pinfeed paper onto the front set of tractors. Load the paper by depressing the LF/FF Load button on the Control Panel one (1) time. Run the DFX-9000 Adjustment Program. Select “DFX-9000” as the “Model Name”. Select “EAI” as the “Destination”. Adjustments Printer Component, Software Item,...
  • Page 202 Epson DFX-9000 Field Repair Guide 3/29/07 Select “Particular Adjustment Mode” as the “Program Type”. Click the “OK” button. Adjustments Printer Component, Software Item, LCD Display, Printer Button Page 193.
  • Page 203 Epson DFX-9000 Field Repair Guide 3/29/07 10. From the new window, select the I/O port to which the printer is connected. 11. Click the “OK” button. Adjustments Printer Component, Software Item, LCD Display, Printer Button Page 194.
  • Page 204 Epson DFX-9000 Field Repair Guide 3/29/07 12. Select “APTC Detection Position Adjustment” from the list of available adjustments. 13. Click “OK”. 14. Click on the “Enter adjustment mode” button. 15. Move the Carriage Assembly to the Ribbon Cartridge Replacement position.
  • Page 205 Epson DFX-9000 Field Repair Guide 3/29/07 18. Manually open the Paper Bail, insert a stack of 4 sheets of 18# paper from the top of the printer, routing the paper beneath the Paper Bail until the bottom edge of the paper is resting on the Paper Feed Rollers.
  • Page 206 Epson DFX-9000 Field Repair Guide 3/29/07 25. Using the Microfeed Up Microfeed Down buttons, change the Platen Gap until the Carriage Assembly encounters a fair amount of resistance from the paper. 26. Remove the paper from the printer. 27. If the APTC Detection Position required adjustment when 5 sheets of paper were installed in the printer (Step 24), repeat Steps 16 - 25.

  • Page 207: Aptc Unit Mount Position Adjustment

    Epson DFX-9000 Field Repair Guide 3/29/07 APTC Unit Mount Position Adjustment Hold Gear C immobile with your finger, and slowly rotate Gear B back and forth. If the APTC Unit Mount Position is correct, you will see and feel a very small amount of movement (known as backlash) of Gear B (approximately 0.03 –...

  • Page 208: Card Guide Mount Position Adjustment

    Epson DFX-9000 Field Repair Guide 3/29/07 Card Guide Mount Position Adjustment Tear off a piece of PinFeed Paper about 3 inches long, ensuring that the strip of paper contains at least 2 pinfeed holes. Printer Component, Software Item, LCD Display, Printer Button Page 199.
  • Page 209 Epson DFX-9000 Field Repair Guide 3/29/07 Center one of the pinfeed holes over the Stopper Stud, located about 1/4 inch below the SS-Gear. Rotate Gear B clockwise until the bottom of the arm of the SS-Gear cuts across the center of the pinfeed hole immediately above the Stopper Stud.
  • Page 210 Epson DFX-9000 Field Repair Guide 3/29/07 Place 3 sheets of 20 lb. paper into the gap between the Card Guide and the Platen as shown below and lightly push the Card Guide against the paper. Tighten the 2 screws securing the Card Guide.
  • Page 211 Epson DFX-9000 Field Repair Guide 3/29/07 Verify that 3 sheets of paper will fit between the Platen and the Card Guide, but 4 sheets of paper will NOT fit between the Platen and the Card Guide. If the gap is not correct, repeat Steps 5 - 7.

  • Page 212: Parallelism Adjustment

    Epson DFX-9000 Field Repair Guide 3/29/07 Parallelism Adjustment Tear off a piece of PinFeed Paper about 3 inches long, ensuring that the strip of paper contains at least 2 pinfeed holes. Printer Component, Software Item, LCD Display, Printer Button Page 203.
  • Page 213 Epson DFX-9000 Field Repair Guide 3/29/07 Center one of the pinfeed holes over the Stopper Stud, located about 1/4 inch below the SS-Gear. Rotate Gear B clockwise until the bottom of the arm of the SS-Gear cuts across the center of the pinfeed hole immediately above the Stopper Stud.
  • Page 214 Epson DFX-9000 Field Repair Guide 3/29/07 Move the Print Head to Column 1 of the Column Scale Bar. Slide a .40mm feeler gauge between the Platen and the nose of the Print Head. It might be necessary to use 2 or more size gauges to add up to .40mm.
  • Page 215 Epson DFX-9000 Field Repair Guide 3/29/07 If the .40mm feeler gauge will easily fit between the Print Head and the Platen, the gap is too wide. Loosen Screw A about 1/8 of a turn. To adjust the gap, insert a flat blade screwdriver into the opening to the left of Screw A.
  • Page 216 Epson DFX-9000 Field Repair Guide 3/29/07 If a .38mm feeler gauge will not fit between the Print Head and the Platen, the gap is too narrow. Loosen Screw A about 1/8 of a turn. To adjust the gap, insert a flat blade screwdriver into the opening to the left of Screw A.
  • Page 217 Epson DFX-9000 Field Repair Guide 3/29/07 Move the Print Head to Column 70 of the Column Scale Bar. 10. Slide a .40mm feeler gauge between the Platen and the nose of the Print Head. It might be necessary to use 2 or more size gauges to add up to .40mm.
  • Page 218 Epson DFX-9000 Field Repair Guide 3/29/07 11. If the .40mm feeler gauge will easily fit between the Print Head and the Platen, the gap is too wide. Loosen Screw B about 1/8 of a turn. To adjust the gap, insert a flat blade screwdriver into the opening to the left of Screw B.
  • Page 219 Epson DFX-9000 Field Repair Guide 3/29/07 12. If a .38mm feeler gauge will not fit between the Print Head and the Platen, the gap is too narrow. Loosen Screw B about 1/8 of a turn. To adjust the gap, insert a flat blade screwdriver into the opening to the left of Screw B.
  • Page 220 Epson DFX-9000 Field Repair Guide 3/29/07 13. Move the Print Head to Column 130 of the Column Scale Bar. 14. Slide a .40mm feeler gauge between the Platen and the nose of the Print Head. It might be necessary to use 2 or more size gauges to add up to .40mm.
  • Page 221 Epson DFX-9000 Field Repair Guide 3/29/07 15. If the .40mm feeler gauge will easily fit between the Print Head and the Platen, the gap is too wide. Loosen Screw C about 1/8 of a turn. To adjust the gap, insert a flat blade screwdriver into the opening to the right of Screw C.
  • Page 222 Epson DFX-9000 Field Repair Guide 3/29/07 16. If a .38mm feeler gauge will not fit between the Print Head and the Platen, the gap is too narrow. Loosen Screw C about 1/8 of a turn. To adjust the gap, insert a flat blade screwdriver into the opening to the right of Screw C.

  • Page 223: Glossary

    Epson DFX-9000 Field Repair Guide 3/29/07 GLOSSARY APTC ....Automatic Paper Thickness Control (Platen Gap) Carrier Unit....Carriage Assembly CES .

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