Canon MultiPASS C50 Service Manual page 88

Part 1: Facsimile
Paper feed motor drive switching
NOTE
Coupled with purge unit drive gear
Power from the paper feed motor is switched for separation and feed of the paper, and
nozzle cleaning mechanisms by the direction of paper feed motor rotation, the slide lock pin
on the purge unit and swing gear. When the carriage moves in front of the purge unit, the
carriage pushes the control pin, and releases the swing gear driven by the paper feed motor.
When the paper feed motor rotates in the paper feed direction in this state, the swing gear
rotates and moves up to the auto sheet feeder drive gear to drive the auto sheet feeder.
Alternately, when the paper feed motor rotates in the reverse direction, the swing gear
rotates and moves up to the purge drive gear to drive the purge unit.
When the control pin is locked, the paper feed roller is driven to feed the paper.
Paper feed state
Swing gear
Pump drive state
Swing gear
Purge unit drive gear
Covers BJ cartridge
Auto sheet feeder drive state
Swing gear
Coupled with ASF drive gear
Figure 2-5 Paper Feed Motor Drive Switching
Paper feed roller
Fed in forward direction by paper feed motor
Control pin
Fixed to swing gear
Purge unit
Paper feed roller
Fed in reverse direction by paper feed
motor
Control pin
Pushed by carriage to
release swing gear
Cap
Pickup roller
Auto Sheet Feeder
drive gear
Control pin
Pushed by carriage to
release swing gear
2-8