Canon iR C2880 series, Service Manual

Page: 507 / 610

Chapter 17
17-23
F-17-16
2. CCD
T-17-26
COPIER>ADJUST>CCD
Sub item Description level.
W-PLT-X/Y/Z Use it when entering the white label data indicated on the standard white plate.
Method of Adjustment
- if you have initialized the RAM on the reader controller PCB or replaced the reader controller PCB, enter the value
indicated on the service label.
- if you have replaced the copyboard glass, enter the value indicated on the copyboard glass. (See the figure below)
Range of Adjustment: 1 to 9999
[Factory default/After RAM clear: W-PLT-X=8244: W-PLT-Y=8707: W-PLT-Z=9383]
Attention:
If you have changed the setting, be sure to record the new setting on the service label.
1
CCDU-RG Use it to correct color displacement in sub scanning direction between RG associated with the CCD unit.
Method of Adjustment
- if you have initialized the RAM on the reader controller or replaced the reader controller PCB, enter the value indicated
on the service label.
Range of Adjustment: -150 to 150 [Factory default/After RAM clear: 0]
Attention:
If you have changed the setting, be sure to record the new setting on the service label.
1
MTF-MG Enter the MTF correction value in the main scanning direction.
Adjustment method:
- When executing RAM clear for the reader controller PCB or replacing the reader controller PCB, enter the value
indicated on the service label .
- When replacing the CIS unit, enter the value indicated on the label attached to the CIS unit.
Setting range: 0 to 99
[Factory setting value/Value after RAM clear: 0]
Attention:
When you changed this setting, enter the new value on the service label.
1
MTF-SG Enter the MTF correction value in the sub scanning direction.
Adjustment method:
- When executing the RAM clear for the reader controller PCB or replacing the reader controller PCB, enter the value
indicated on the service label.
- When replacing the CIS unit, enter the value indicated on the label attached to the CIS unit.
Setting range: 0 to 99
[Factory setting value/Value after RAM clear: 0]
Attention:
When you changed this setting, enter the new value on the service label.
1
BOOK-RG Enter the offset value for color misalignment caused by the copyboard glass.
Adjustment method:
- When executing RAM clear for the reader controller PCB or replacing the reader controller PCB, enter the value
indicated on the service label.
- When replacing the copyboard glass, enter the numeric value indicated on the copyboard glass.
Setting range: -150 to 150
[Factory setting value/Value after RAM clear: 0]
Attention:
When you changed this setting, enter the new value on the service label.
1
DF-RG Enter the offset value for color misalignment caused by the stream reading glass.
Adjustment method:
- When executing RAM clear for the reader controller PCB or replacing the reader controller PCB, enter the value
indicated on the service label.
- When replacing the stream reading glass, enter the numeric value indicated on the stream reading glass.
Setting range: -150 to 150
[Factory setting value/Value after RAM clear: 0]
Attention:
When you changed this setting, enter the new value on the service label.
1
Document
Read start position
Vertical size plate
Decreasing setting value
(read start position moves
away from you)
Increasing setting value
(read start position
moves toward you)