Canon iR C1020 Series Service Manual page 168

Chapter 8
Explanation of operation
When the DC controller turns ON the ETB disengagement solenoid (SL5011), the drive of the ETB motor (M5) is sent to the transfer roller disengagement slider
via the transfer roller disengagement cam. The transfer roller is engaged with/disengaged from the ETB by working with the transfer roller disengagement slider.
The transfer roller for each color is attached to the transfer roller holder.
When the pin on the transfer roller holder is hooked to the slope of the transfer roller disengagement slider, the transfer roller holder follows the operation of the
transfer roller disengagement slider.
When the transfer roller disengagement slider moves up and down, the pin moves along the slope, and the transfer roller is engaged with or disengaged from the
transfer roller.
8-22
Transfer roller
Bk toner cartridge
Y toner cartridge
C toner cartridge
M toner cartridge
Holder
movement
Transfer roller
Bk
Photosensitive drum
ETB
Y(C,M)
DC controller PCB
SL5011
ETB disengagement solenoid
Transfer roller disengagement cam
Transfer roller disengagement slider
Transfer roller holder
F-8-27
Transfer roller holder
Pin
Slope
Transfer roller disengagement slider
Upper
Slider movement
Lower
Slope
F-8-28
M5
ETB motor