Overview; Adjustment When Replacing Parts; Image Position Adjustment - Canon imageRUNNER 2525 Series Service Manual

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
Scanning System CIS Unit
Copyboard glass
ADF reading glass
Controller System Main controller PCB
DC controller PCB
RAM PCB
Laser Exposure System Laser scanner unit

Image position adjustment

This section describes procedures when adjusting basic image position (image margins, nonimage area, etc).
Category
Margin Along the Leading
Edge
Left Image Margin
Replacing parts
L1:
Single-sided copy: 2.5 ± 1.5 (mm)
Double-sided copy: 2.5 ± 2.0 (mm)
Feeding direction
of paper
L1:
Single-sided copy: 2.5 ± 1.5 (mm)
Double-sided copy: 2.5 ± 2.0 (mm)
Feeding direction
of paper
"Action to Take after Replacing the CIS Unit" on page
182
"Action to Take after Replacing the Platen Glass" on page
182
"Action to Take after Replacing the ADF Scan Glass" on
page 183
"Action to Take after Replacing theMain Controller PCB"
on page 183
"Action to Take when Replacing the DC Controller PCB"
on page 183
"Action to Take after Replacing the RAM" on page 184
"Action to Take after Replacing the Laser Scanner Unit"
on page 184
Item
L1
image
image
178
5. Adjustment
Reference
Reference
"Margin Along the Leading Edge"
on page 180
"Left Image Margin" on page
180