Patch Sensor Unit; Pre-Exposure Led Unit; Laser Scanner Unit - Canon imageRUNNER ADVANCE C3500 III Series Service Manual

2. Write the following service setting values on the service label in the front cover according the replaced colour of the developing
unit.
• COPIER > ADJUST > DENS > D-Y-LVL
• COPIER > ADJUST > DENS > D-M-LVL
• COPIER > ADJUST > DENS > D-C-LVL
• COPIER > ADJUST > DENS > D-K-LVL
• COPIER > ADJUST > DENS > CONT-Y
• COPIER > ADJUST > DENS > CONT-M
• COPIER > ADJUST > DENS > CONT-C
• COPIER > ADJUST > DENS > CONT-K
3. Execute auto gradation adjustment.

Patch Sensor Unit

1. Enter the service mode values written on the label included in the package.
• COPIER > ADJUST > DENS > PALPHA-F
• COPIER > ADJUST > DENS > PALPHA-R
• COPIER > ADJUST > DENS > POFST-F1
• COPIER > ADJUST > DENS > POFST-R1
• COPIER > ADJUST > DENS > SOFST-F1
• COPIER > ADJUST > DENS > SOFST-R1
• COPIER > ADJUST > DENS > POFST-F2
• COPIER > ADJUST > DENS > POFST-R2
• COPIER > ADJUST > DENS > SOFST-F2
• COPIER > ADJUST > DENS > SOFST-R2
2. Execute auto gradation adjustment.
• Settings/Registration > Adjustment/Maintenance > Adjust Image Quality > Auto Adjust Gradation > Full Adjust
3. After executing auto gradation adjustment, see the alarm log to check that 10-0006/10-0007 has not occurred.
When an alarm occurs, perform a remedy according to the instruction of the alarm.
4. Write the service setting values on the service label in the front cover.

Pre-Exposure LED Unit

1. Light up the Cleaning Pre-exposure LED and check that the LED lights up on the following service mode.
• COPIER > FUNCTION > MISC-P > PRE-EXP
2. Enter the service mode values written on the label included in the package.
• COPIER > ADJUST > EXP-LED > INTEXP-M
• COPIER > ADJUST > EXP-LED > INTEXP-C
• COPIER > ADJUST > EXP-LED > INTEXP-K
3. Write the above service setting values on the service label in the front cover.

Laser Scanner Unit

Replacing Method
1. Execute [Auto Correct Color Mismatch].
2. If the degree of color displacement differs between the center and the edge, execute "copy ratio correction" and "distortion
correction" as needed. Execute "copy ratio correction" and then "distortion correction".
Execute "copy ratio correction" and then "distortion correction".
Copy Ratio Correction: Horizontal Scanning Direction
1. Clear the offset value of copy ratio correction on the following service mode.
• COPIER > FUNCTION > CLEAR > LS-INT-H
2. Output PG for adjustment on the following service mode.
• COPIER > TEST > PG > TYPE : 62
COPIER > TEST> PG > PG-PICK: Select the paper source where A4 or LTR size paper or larger is loaded.
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5. Adjustment