Canon MF735C Series Service Manual page 227

3. Read the chart using the duplex scanning model (front side).
Place the chart PG-TYPE 26 output in test mode on the ADF with the printed side facing up and execute the following service
mode.
• COPIER > FUNCTION > MISC-R > 1PSCLB-A
4. Read the chart using the duplex scanning model (back side).
Place the chart PG-TYPE 26 output in test mode on the ADF with the printed side facing down and execute the following
service mode.
• COPIER > FUNCTION > MISC-R > 1PSCLB-B
5. Judgment
Check that the following service mode values are 1 (reading succeeded).
• COPIER > DISPLAY > CCD > 1P-ERR-A
• COPIER > DISPLAY > CCD > 1P-ERR-B
If any value other than 1 (reading succeeded) is displayed, turn OFF and then ON the power of the host machine and read
the chart again.
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7. Troubleshooting