Registration Control - Canon imageRUNNER 2525 Series Service Manual

2. Technical Explanation
Pickup guide plate
Side guide
Manual feed pickup tray
Manual feed
pickup roller
Separation pad
Pressure spring
● Paper Presence Detection
The paper presence is detected by the Multi-Purpose Tray Paper Presence Sensor.
When the paper absence is detected, if there is the same size & same type paper exists in other cassette, auto cassette change
is executed.
● Paper Size Detection
This machine does not have the paper size detection detection function. The user must set the size of the paper in the multi
manual feed tray using the operation panel, or the user must register a fixed size in the user mode.Image masking area is regulated
based on the result of paper width detection so that the image to be reproduced does not beyond the paper width.
■ Fixing / Registration Assembly
● Registration Control
The registration roller is driven by the main motor (M1).
In between the registration roller and the main motor is the registration clutch (CL1), servicing to turn on and off the registration
roller so that the paper will be matched in relation to the image on the drum at correct registration.
M1 CL1
Registration roller
■ Duplex / Delivery Assembly
● Duplex Feed Control
On this machine, the paper is revered outside the machine with using the reverse mouth.
Active reverse mouth is determined depending on whether or not the 2 way unit is installed.
Installing the 2 way unit makes the entire paper path longer resulting in higher productivity as the number of sheet circulation is
increased.
Following is the number of sheet circulation by size.
Without 2 way unit
No.1 delivery tray
Besides A4 1
94