Action To Take After Replacing The Ram; Laser Exposure System; Action To Take After Replacing The Laser Scanner Unit; Image Position Adjustment - Canon imageRUNNER 2530 Service Manual Digest

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Action to Take after Replacing the RAM

CAUTION:
The ADRAM is powered from the secondary battery unit to back up the image memory
even after the main power switch is turned OFF and the power plug is removed from
the outlet.
If the SW3 on the main controller PCB is pressed with the image backed up, the entire
data stored in the memory is cleared. Be sure to output the data stored in the memory
before pressing the SW3.

Laser Exposure System

Action to Take after Replacing the Laser Scanner Unit

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When replacing the laser unit, enter the values recorded on the label affixed to the laser unit
to be replaced for the following in the service mode:
145 146 147
SW No.
•
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)
136 148 149 150
F-2-2 F-2-2

Image position adjustment

Copy 10 sheets from each pickup position to check that the image margin and non-image
area is within the standard.
•
Each cassette
•
Pickup tray
If it is not within the standard, go through the following procedures to adjust it.
CAUTION:
If changing the value of service mode item in this adjustment, enter the changed value
in the service label.

Margin Along the Leading Edge

Service mode> PRINT> PRINT NUMERIC> 053
1st side of copy: 2.5+/-1.5mm
0 2 4 6 8 10 12 14 16 18 20 5
Decrease the value.
(a decrease of '10' will
increase the margin by 1 mm)
Paper
leading edge
Increase the value.
(an increase of '10' will
increase the margin by 1 mm)
F-2-3 F-2-3
2
2-5