Canon MF735C Series Service Manual page 185

4. How to judge whether the operation was successful or failed
Whether the operation was successful or failed is not shown on the UI, so perform the following procedure to judge if
the operation was successful or failed.
B&W mode
Check the following values. If all values remain unchanged at "1,000", the operation result is judged to be "failed".
• COPIER > ADJUST > CCD > LE-BWRBK
• COPIER > ADJUST > CCD > LE-BWGBK
• COPIER > ADJUST > CCD > LE-BWBBK
If the operation result is judged to be "failed", turn OFF and then ON the power, and execute COPIER > FUNCTION >
CCD > BW-AGC2 again.
Color mode
Check the following values. If all values remain unchanged at "1,100", the operation result is judged to be "failed".
• COPIER > ADJUST > CCD > LE-CLRBK
• COPIER > ADJUST > CCD > LE-CLGBK
• COPIER > ADJUST > CCD > LE-CLBBK
If the operation result is judged to be "failed", turn OFF and then ON the power, and execute COPIER > FUNCTION >
CCD > CL-AGC2 again.
9. Paper back shading initial measurement (duplex scanning ADF model only)
1. Execute the following service mode without placing anything on the Stream Reading Glass.
• COPIER > FUNCTION > CCD > BK-SHD1
2. Place the Paper Back Shading Adjustment Jig (FL1-4365) on the Stream Reading Glass and execute the following
service mode.
• COPIER > FUNCTION > CCD > BK-SHD2
CAUTION:
Be sure to close the ADF before executing the foregoing service mode. Also be sure not to open the ADF while the service
mode is being executed.
3. Check COPIER > DISPLAY > CCD > BK-SHDST to determine if it was [1] successful or [0] failed.
4. If it failed, clean the Stream Reading Glass and the Paper Back Shading Adjustment Jig (FL1-4365) and execute the
initial measurement of the paper back shading again.
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6. Adjustment