Removing The Toner Supply Assembly - Canon imageRUNNER 2525 Series Service Manual

■ Procedure
1. Remove the scanner retaining plate.
• 1 screw
1x
2. Remove the laser scanner unit.
• 2 pieces of sponge
• 4 connectors
4x
CAUTION:
When pulling out the laser scanner, take care not to
touch the PCB installed on the laser scanner unit. (The
PCB is equipped with a laser intensity adjusting volume
resistor and so touching the PCB can change the
adjustment setting.)
■ Action to Take after Replacing the
Laser Scanner Unit
1. When replacing the Laser Unit, enter the value
obtained by adding 1,000 to the number shown on
the label affixed to the side of the newly replaced
Laser Unit in the corresponding service mode as
shown below.
(Examples: If the number on the service label is 3, enter
1,003. If the number on the service label is -1, enter 999.)
SW No. 145 146
• PRINT > Bitswitch > 136 Laser horizontal scanning
direction write position adjustment(A)
• PRINT > Bitswitch > 145 Laser horizontal scanning
direction magnification ratio adjustment(A-B)
• PRINT > Bitswitch > 146 Laser horizontal scanning
direction magnification ratio adjustment(A-C)
• PRINT > Bitswitch > 147 Laser horizontal scanning
direction magnification ratio adjustment(A-D)
• PRINT > Bitswitch > 148 Laser horizontal scanning
direction write position adjustment(A-B)
• PRINT > Bitswitch > 149 Laser horizontal scanning
direction write position adjustment(A-C)
• PRINT > Bitswitch > 150 Laser horizontal scanning
direction write position adjustment(A-D)
Removing the Toner Supply
Assembly
■ Preparation
1. Remove the inside base
Base Cover" on page 133
2. Remove the left
page 132
3. Remove the waste toner
Waste Toner Container" on page 150
4. Remove the drum
page 151
5. Remove the toner bottle.
6. Remove the toner supply
Toner Supply Cover" on page 134
7. Remove the delivery
Tray" on page 130
8. Remove the laser scanner
Scanner Unit" on page 142
143
4. Disassembly/Assembly
-67
-5 -4
147 136 148 149
cover."Removing the Inside
cover."Removing the Left Cover" on
container."Removing the
unit."Removing the Drum Unit" on
cover."Removing the
tray."Removing the Delivery
unit."Removing the Laser
-5
150