Canon ImageRunner iR8500 Series, Service Manual, Page: 907 / 1122

Chapter 17
17-63
<LASER>
T-17-45
<DEVELOP>
T-17-46
LUT-O-F5 Use it to enter the link correction data value for the first half odd-numbered pixels of
the CCD. 0 to 1023
[at time of shipment/after RAM initialization:0]
1
LUT-E-F1 Use it to enter the link correction data value for the first half even-numbered pixels of
the CCD. 0 to 1023
[at time of shipment/after RAM initialization:0]
1
LUT-E-F2 Use it to enter the link correction data value for the first half even-numbered pixels of
the CCD. 0 to 1023
[at time of shipment/after RAM initialization:0]
1
LUT-E-F3 Use it to enter the link correction data value for the first half even-numbered pixels of
the CCD. 0 to 1023
[at time of shipment/after RAM initialization:0]
1
LUT-E-F4 Use it to enter the link correction data value for the first half even-numbered pixels of
the CCD. 0 to 1023
[at time of shipment/after RAM initialization:0]
1
LUT-E-F5 Use it to enter the link correction data value for the first half even-numbered pixels of
the CCD. 0 to 1023
[at time of shipment/after RAM initialization:0]
1
COPIER > ADJUST > LASER
Sub-item Description Level
Adjusting the Laser Output
If you have cleared the RAM on the DC controller PCB, be sure to enter the settings indicated on the service
label.
PVE-OFST Use it to adjust the position of laser projection.
1
<Setting range> -300 to 300
- A higher value moves the spot toward the rear.
- A smaller value moves the stop to the front.
The laser A spot moves in keeping with the laser B spot.
LA-DELAY Entering a delay value after laser unit displacement (Matching the laser main scan)
1
<Setting range> 0 to 4807
Enter the delay value peculiar to the unit affixed to the unit at laser unit
replacement.
LA-PWR-A Use it to enter the power adjustment value for the laser A.
1
<Setting range> 0 to 255
If you have replaced the laser unit, enter the power adjustment value for the laser A
indicated on the label attached to the unit.
LA-PWR-B Use it to enter the power adjustment value for the laser B.
1
<Setting range>
ޓ
0 to 255
If you have replaced the laser unit, enter the power adjustment value for the laser B
indicated on the label attached to the unit.
DLY-FINE Use it to fine-adjust the displacement of the laser A or laser B.
1
<Setting range> -16 to 16
COPIER > ADJUST > DEVELOP
Sub-item Description Level
DE-DC Use it to enter the DC output value for image formation.
1
<Setting range> 0 to 600
There are cases that the actual input and the indication after input do not match.
DE-NO-DC Use it to enter the development DC output value for non-image formation.
1
<Setting range> 0 to 600
There are cases that the actual input and the indication after input do not match.
COPIER > ADJUST > CCD
Sub-item Description Level
Making CCD- and Shading-Related Adjustments
If faulty images are noted after executing COPIER>FUNCTION>CCD>CCD-ADJ, enter the settings
indicated on the service label.