Multi-Purpose Tray Pickup Assembly; Fixing/Registration Assembly - Canon imageRUNNER 1750 Series Service Manual

2
Technical Explanation > Pickup Feed System > Controls > Fixing/Registration Assembly

■ Multi-purpose Tray Pickup Assembly

● Overview
Paper on the Multi-purpose Tray Pickup Tray of the Multi-purpose Tray Pickup Unit is pushed
against the Multi-purpose Tray Pickup Roller by the Lifting Plate, and only a single sheet
of paper is separated and fed by the work of the Multi-purpose Tray Pickup Roller and the
Separation Pad.
M8
Multi-purpose
Tray Pickup Roller
Multi-purpose Tray
Separation Pad
Pressure Spring
Manual Feeder Paper Detection
Lever
Paper Sensor (PS7)
● Pickup Retry Control
If the Pre-Registration Sensor (PS12) is not turned ON within the specified period of time
after the start of pickup operation, detection by the Multi-purpose Tray Paper Sensor (PS7) is
referred.
• When Multi-purpose Tray Paper Sensor (PS7) is ON:
Execute the pickup operation again. If the Pre-Registration Sensor (PS12) is not turned ON
after the start of re-pickup operation, a delay jam is notified.
• When Multi-purpose Tray Paper Sensor (PS7) is OFF:
Terminate the pickup operation.
● Paper Detection
Presence/absence of paper is detected by the Multi-purpose Tray Paper Sensor (PS7).
When absence of paper is detected but the same size and same type of papers exist in
another paper source, auto cassette change is executed.
2 Technical Explanation > Pickup Feed System > Controls > Fixing/Registration Assembly
SL1
Side Guide
Pickup Guide Plate
Multi-purpose Tray
F-2-96

■ Fixing/Registration Assembly

● Registration Control
The Registration Roller is driven by the Main Motor (M2). There is the Registration Clutch
(CL1) between the Registration Roller and the Main Motor, and it controls ON/OFF of the
Registration Roller to align the paper with the image on the drum at the specified registration.
In addition, the speed is decreased right before a paper hits the Registration Roller so that
hitting sound is alleviated (speed is not decreased when picking up from the Cassette 1 of
imageRUNNER 1730/1740).
M2 CL1
Registration Roller
2-67
F-2-97
2-67