Scanner Unit (Paper Front); Scanner Unit (Paper Back) - Canon imageRUNNER ADVANCE 4551i Service Manual

• To execute Inch configuration adjustment
1. Align the Slide Guide with "LTR/11x17".
2. Select the service mode, press the OK key, and register the width of LTR.
• Service Mode > FEEDER > FUNCTION > TRY-LTR
3. Align the Slide Guide with "STMT/LTRR/LGL".
4. Select the service mode, press the OK key, and register the width of LTRR.
• Service Mode > FEEDER > FUNCTION > TRY- LTRR
6. In the following service mode, output P-PRINT.
• Service Mode > COPIER > FUNCTION > MISC-P > P-PRINT
Keep the output P-PRINT in service book case.

Scanner Unit (Paper Front)

■ Actions after Parts Replacement
1. Enter the values written on the label included with the Scanner Unit.
• Service Mode > COPIER > ADJUST > CCD > 100-RG
• Service Mode > COPIER > ADJUST > CCD > 100-GB
2. Adjust the shading position.
• Service Mode > COPIER > FUNCTION > INSTALL > RDSHDPOS
3. Adjust the stream reading position.
• Service Mode > COPIER > FUNCTION > INSTALL > STRD-POS
4. Adjust the white level.
Prepare a sheet of A3 or 11x17 size paper.
1. Place the paper on the Copyboard Glass.
• Service Mode > COPIER > FUNCTION > CCD > DF-WLVL1
2. Place the paper on the ADF Document Pickup Tray.
• Service Mode > COPIER > FUNCTION > CCD > DF-WLVL2
3. Place the paper on the Copy Board Glass.
• Service Mode > COPIER > FUNCTION > CCD > DF-WLVL3
4. Place the paper on the ADF Document Pickup Tray.
• Service Mode > COPIER > FUNCTION > CCD > DF-WLVL4
5. Execute the following service mode to calculate the MTF filter coefficient.
• Service Mode > COPIER > FUNCTION > CCD > MTF-CLC
6. Write down the following service mode values in the service label (on the back of the Reader Front Cover).
Service Mode > COPIER > ADJUST > CCD
Path for Service Modes
COPIER > ADJUST > CCD 100-RG, 100-GB, SH-TRGT, DFTAR-R, DFTAR-G, DFTAR-B, DFTAR-BW

Scanner Unit (Paper Back)

■ Actions after Parts Replacement
1. Enter the values written on the label included with the Scanner Unit.
• Service Mode > COPIER > ADJUST > CCD > 100DF2GB
• Service Mode > COPIER > ADJUST > CCD > 100DF2RG
2. Adjust the shading position.
• Service Mode > COPIER > FUNCTION > INSTALL > RDSHDPOS
3. Adjust the stream reading position.
• Service Mode > COPIER > FUNCTION > INSTALL > STRD-POS
List of Service Mode Items to Write Down the Values on Service Labels
Service Mode Items to Write Down the Values on Service Labels
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5. Adjustment