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4-4-2. Electromagnetic Clutch (80)
|7)
Motor drive signal
1
)
Voltage current waveform of motor coil I phase
By aoplying powo• to electromagn*t>c Clutch make t*i« rotation
of the stepping motor to paper feeding.
When the mote rotate* in the printing direction (X
positive
direction!, tho paper a fed in tho normal direction, and when it
rotate* in the X exi* negative direction, the paper is fed In the
inverse direction. When tho oloctromagnetic clutch ■* on. carry
out paper feeding operation after a hold time of 10 ms Turn off
tho oloctromagnetic clutch when the operation it completed,
and make the motor to 10 ms hold.
Voltag? current waveform
2)
2-2 phaco excitation magnetic drive timing
Off
* ph«o
ON
B ohm*
C phate
0 phot*
3)
1-2 phase e.citotion magnetic drive timing
4-4-3.
Trigger
Solenoid (TOO)
Perform lock release of head down mechanism
Turn trigger solenoid on during head down
After trigger solenoid is turned oa maintain hold lima of 10 m»
B Ph»te
Voltage current waveform
Cphate
0 phase
4-5
PRNT24(AE)
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