Canon iR C3380 series, Service Manual

Page: 509 / 610

Chapter 17
17-25
F-17-17
3. LASER
Laser Output Adjustment
T-17-27
DFTAR-B Use it to enter the shading target value (blue) for the DF (normal original read position).
Method of Adjustment
- COPIER>FUNCTION>CCD>DF-WLVL1/DF-WLVL2
if the image starts to develop a fault after executing the foregoing service mode item, enter the factory measurement using
this mode item.
- 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.
Range of Adjustment: 1 to 2047 [Factory default/After RAM clear: 1185]
Attention:
If you have changed the setting, be sure to record the new setting on the service label.
1
DFTAR2-R Enter the shading target value (RED color) for the use of DF. (second document reading position)
Adjustment method:
- When a fault occurs in the image (due to dirt on the chart, etc.) after executing COPIER>FUNCTION>CCD>DF-
WLVL2, use this mode and enter the factory measurement value.
- When executing RAM clear for the reader controller PCB or replacing the reader controller PCB, enter the value
indicated on the service label.
Setting range: 1 to 2047
[Factory setting value/Value after RAM clear: 1138]
1
DFTAR2-G Enter the shading target value (GREEN color) for the use of DF. (second document reading position)
Adjustment method:
- When a fault occurs in the image (due to dirt on the chart, etc.) after executing COPIER>FUNCTION>CCD>DF-
WLVL2, use this mode and enter the factory measurement value.
- When executing RAM clear for the reader controller PCB or replacing the reader controller PCB, enter the value
indicated on the service label.
Setting range: 1 to 2047
[Factory setting value/Value after RAM clear: 1154]
1
DFTAR2-B Enter the shading target value (BLUE color) for the use of DF. (second document reading position)
Adjustment method:
When a fault occurs in the image (due to dirt on the chart, etc.) after executing COPIER>FUNCTION>CCD>DF-
WLVL2, use this mode and enter the factory measurement value.
Setting range: 1 to 2047
[Factory setting value/Value after RAM clear: 1201]
1
COPIER>ADJUST>LASER
Sub item Description level.
LA-PWR-A Enter the laser power adjustment value for Laser A.
This machine adjusts the laser power at DMAX for PCRG initialization. This item adjusts the laser power Y. This can
be used to determine a cause of a density fault. When replacing the DCON PCB, enter the value corresponding to PCRG.
Setting range: 0 to 15
1
LA-PWR-B Enter the laser power adjustment value for Laser B.
This machine adjusts the laser power at DMAX for PCRG initialization. This item adjusts the laser power Y. This can
be used to determine a cause of a density fault. When replacing the DCON PCB, enter the value corresponding to PCRG.
Setting range: 0 to 15
1
LA-PWR-C Enter the laser power adjustment value for Laser C.
This machine adjusts the laser power at DMAX for PCRG initialization. This item adjusts the laser power Y. This can
be used to determine a cause of a density fault. When replacing the DCON PCB, enter the value corresponding to PCRG.
Setting range: 0 to 15
1
LA-PWR-D Enter the laser power adjustment value for Laser D.
This machine adjusts the laser power at DMAX for PCRG initialization. This item adjusts the laser power Y. This can
be used to determine a cause of a density fault. When replacing the DCON PCB, enter the value corresponding to PCRG.
Setting range: 0 to 15
1
FSLUT-Y1 Partial ratio adjustment for Y-color images in the main scanning direction: 1
Correction value for the second block of partial ratio correction Y
When replacing the laser scanner unit, enter the value indicated on the label attached to the unit. When no value is
entered, color misalignment occurs.
Setting range: 0 to 99
1
FSLUT-Y2 Partial ratio adjustment for Y-color images in the main scanning direction: 2
Correction value for the second block of partial ratio correction Y
When replacing the laser scanner unit, enter the value indicated on the label attached to the unit. When no value is
entered, color misalignment occurs.
Setting range: 0 to 99
1
FSLUT-Y3 Partial ratio adjustment for Y-color images in the main scanning direction: 3
Correction value for the third block of partial ratio correction Y
When replacing the laser scanner unit, enter the value indicated on the label attached to the unit. When no value is
entered, color misalignment occurs.
Setting range: 0 to 99
1
COPIER>ADJUST>CCD
Sub item Description level.
8 2 0 6 8 6 6 7 9 3 4 9
va l u e o f W- P L AT E - X
va l u e o f W- P L AT E - Y
va l u e o f W- P L AT E - Z