Image Adjustment Basic Procedure; Image Adjustment Basic Procedure 1 - Canon iR C6800 Series Service Manual

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12.1 Image Adjustment Basic Procedure

The image adjustment basic procedure consists of the following steps:

Turn off the potential control mechanism:

COPIER>OPTION>BODY>P0-CNT '0'

Execute the following:

COPIER>FUNCTION>

Turn off the main power switch.

1. Short circuit CP82 found on the DC controller PCB and GND (frame).

2. Disconnect the connector J426 for the DC controller PCB found on

the potential control PCB.

Turn on the main power switch.

Make the following selections in service mode:

COPIER>DISPLAY>DPOT>DPOT-K.

Is the setting between

*1: Make a Bk mono copy. If the said fault is absent, make a full color copy. (Be sure not to make more than 5 full

color copies.)

Is the image better?

Replace the potential

sensor unit.

To image adjustment

basic procedure 2

Check the potential

sensor harness.

Replace the DC

controller PCB.

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