Canon MF735C Series Service Manual page 201

2. Executing the service mode
Execute the following service mode.
• COPIER > FUNCTION > INSTALL > STRD-POS
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. If OK or NG is displayed on the UI, whether the operation was successful or failed can be judged based on it. If OK or
NG is not displayed, check the following value.
• COPIER > ADJUST > ADJ-XY > STRD-POS
If the value above is -20 and remains unchanged, it is judged that the operation failed.
4. In the case of a failure, turn OFF and then ON the power of the host machine, and execute the following service mode
again.
• COPIER > FUNCTION > INSTALL > STRD-POS
5. If the operation is successful
Write the following value on the service label.
• COPIER > ADJUST > ADJ-XY > STRD-POS
5. AGC adjustment (paper front)
1. Entering a provisional value
Change the values of the following service mode settings to 1,000.
• COPIER > ADJUST > CCD > LED-BW-R
• COPIER > ADJUST > CCD > LED-BW-G
• COPIER > ADJUST > CCD > LED-BW-B
Change the values of the following service mode settings to 1,100.
• COPIER > ADJUST > CCD > LED-CL-R
• COPIER > ADJUST > CCD > LED-CL-G
• COPIER > ADJUST > CCD > LED-CL-B
2. Execute the following service modes to perform the AGC adjustment (surface).
• COPIER > FUNCTION > CCD > BW-AGC
• COPIER > FUNCTION > CCD > CL-AGC
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. If the operation was "successful", this procedure is completed. (There is no need to write the value on the service label.)
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 of them remain at "1,000", the operation result is judged to be "failed"
• COPIER > ADJUST > CCD > LED-BW-R
• COPIER > ADJUST > CCD > LED-BW-G
• COPIER > ADJUST > CCD > LED-BW-B
If the operation result is judged to be "failed", turn OFF and then ON the power, and execute COPIER > FUNCTION >
CCD > BW-AGC again.
Color mode
Check the following values. If all of them remain at "1,100", the operation result is judged to be "failed".
• COPIER > ADJUST > CCD > LED-CL-R
• COPIER > ADJUST > CCD > LED-CL-G
• COPIER > ADJUST > CCD > LED-CL-B
If the operation result is judged to be "failed", turn OFF and then ON the power, and execute COPIER > FUNCTION >
CCD > CL-AGC again.
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6. Adjustment