Removing The Cis Unit; Preparations; Procedure - Canon mf6600 Series Service Manual

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Disassembly/Assembly > Document Exposure, Feed System > Removing the CIS Unit > Procedure
Procedure after replacing the ADF Unit
After replacing the ADF unit, go through the following procedure.
1) Enter the service mode from the Control Panel.
2) Select TEST MODE > 2 (SCAN TEST).
3) On the screen of the Control Panel, "FV WHITE LVL ADJ" "BW;--- CL;---" is
displayed.
Adjust the white level of the Copyboard.
4) Place a blank paper on the Copyboard and press OK key.
5) On the screen of the Control Panel, "ACT" (adjusting) and "OK/NG" (adjustment
result) are displayed.
6) When the adjustment result shows "OK", press OK key to go to the ADF white level
adjustment. (To step 7)
When the adjustment result shows "NG", complete the operation without performing the
further adjustments and return to the "SCAN TEST" menu by pressing Stop key.
Adjust the ADF white level.
7) On the screen of the Control Panel, "ADF WHITE LVL ADJ" "BW;--- CL;---" is
displayed.
8) Place a paper on the ADF Pickup Tray and press OK key.
9) Place a paper on the ADF Pickup Tray and press OK key.
10) On the screen of the Control Panel, "ACT" (adjusting) and "OK/NG" (adjustment
result) are displayed.
When the adjustment result shows "OK", adjustment is completed.
When the adjustment result shows "NG", complete the operation without performing the
further adjustments.
CAUTION:
If automatic adjustment fails, "NG" appears. Perform the following procedure:
Clean the scanning area of the ADF and the Backside of copyboard cover of the host
machine, and then retry auto adjustment.
4 Disassembly/Assembly > Document Exposure, Feed System > Removing the CIS Unit > Procedure

Removing the CIS Unit

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Preparations

1) Removing the Left Cover.(Refer to page 4-19)
2) Removing the Controller Cover.(Refer to page 4-55)
3) Removing the Left Rear Cover.(Refer to page 4-22)
4) Removing the ADF Unit + Reader Unit.(Refer to page 4-33)
5) Separate the ADF Unit + Reader Unit.(Refer to page 4-35)
6) Removing the Reader Unit Upper Cover .(Refer to page 4-46)
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Procedure

1) Remove the Belt Pulley [1].
1 Claw [2]
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4-48
[2] [1]
F-4-101 F-4-101
4-48