Canon imageRUNNER 2525 Series, Service Manual, Page: 188 / 402

Overview
Adjustment when replacing parts
This section describes adjustment required in field service works when replacing parts.
The parts are classified by function into the following 3 blocks.
Category Replacing parts Reference
Scanning System CIS Unit “Action to Take after Replacing the CIS Unit” on page
182
Copyboard glass “Action to Take after Replacing the Platen Glass” on page
182
ADF reading glass “Action to Take after Replacing the ADF Scan Glass” on
page 183
Controller System Main controller PCB “Action to Take after Replacing theMain Controller PCB”
on page 183
DC controller PCB “Action to Take when Replacing the DC Controller PCB”
on page 183
RAM PCB “Action to Take after Replacing the RAM” on page 184
Laser Exposure System Laser scanner unit “Action to Take after Replacing the Laser Scanner Unit”
on page 184
Image position adjustment
This section describes procedures when adjusting basic image position (image margins, nonimage area, etc).
Category Item Reference
Margin Along the Leading
Edge L1:
Single-sided copy: 2.5 ± 1.5 (mm)
Double-sided copy: 2.5 ± 2.0 (mm)
image
L1
Feeding direction
of paper
“Margin Along the Leading Edge”
on page 180
Left Image Margin L1:
Single-sided copy: 2.5 ± 1.5 (mm)
Double-sided copy: 2.5 ± 2.0 (mm)
Feeding direction
of paper
L
1
image
“Left Image Margin” on page
180
5. Adjustment
178