Canon imagePRESS C1 Service Manual - page 724
Chapter 13
13-5
13.2 Scanning System
13.2.1 After Replacing the CCD Unit
0014-3707
imagePRESS C1
Enter values printed on the label attached to the CCD unit in the Service
Mode following the below diagrams.
COPIER > ADJUST > CCD > CCDU-RG
(Color shift (sub-scanning direction) correction value between RG, ascriba-
ble to the CCD)
COPIER > ADJUST > CCD > CCDU-GB
(Color shift (sub-scanning direction) correction value between GB, ascriba-
ble to the CCD)
F-13-5
Replace the values printed on the service label inside the reader front cover
with values on the CCD unit.
13.2.2 After Replacing the Copyboard Glass
0014-3708
imagePRESS C1
Enter values printed on the correction label that comes with the copyboard
glass in the following Service Mode.
COPIER > ADJUST > CCD > EC-B
COPIER > ADJUST > CCD > EC-G
COPIER > ADJUST > CCD > EC-R
(Color correction of the copyborad glass)
13.2.3 After Replacing the Reader Control PCB and
Clearing the RAM
0014-3709
imagePRESS C1
- Put the latest update of P-PRINT into print before replacing the reader con-
trol PCB.
- In case the reader control RAM should be cleared without replacing the
PCB, upload the R-CON backup data by using SST and download the
data after clearing the RAM. In this fashion, the following procedure is
not necessary.
1. Adjustment of the Reader Unit
1) Download the updated system software (R-CON) by using SST.
2) In the Service Mode: select COPIER > FUNCTION > CLEAR > R-CON,
and then press Enter key. This will clear the RAM.
3) Turn of the main power and then put it back on.
4) Enter the values below in the Service Mode following the diagrams.
(1) Copyboard glass color correction data
COPIER > ADJUST > CCD > EC-B, EC-G, EC-R
(2) Printed values on the service label (inside the reader front cover)
(a) Adjustment of image scanning starting position (X direction)
(applicable in fixed readings)
COPY > ADJUST > ADJ-XY > ADJ-X
(b) Adjustment of image scanning starting position (Y direction)
(applicable in fixed reading)
COPY > ADJUST > ADJ-XY > ADJ-Y
(c) Adjustment of feeder mode main scanning position
COPY > ADJUST > ADJ-XY > ADJ-Y-DF
(d) Color shift (sub-scanning direction) correction value between
RG and between GB, ascribable to the CCD.
COPIER > ADJUST > CCD > CCDU-RG/GB
(e) Factory default color shift (sub-scanning direction) correction
value between RG and between GB, ascribable to the CCD.
COPIER > ADJUST > CCD > FCCDU-RG/GB
(f) Target value of automatic tone correction
COPIER > ADJUST > PASCAL > OFST-P-Y, M, C, K
After carrying on each adjustment described above, put the P-PRINT [1] in
the service book holder and dispose the previous P-PRINT.
F-13-6
13.3 Image Formation System
13.3.1 After Replacing the Primary Charging Wire
0014-0380
imagePRESS C1 P / imagePRESS C1
1) Execute the primary charging wire cleaning from service mode.
(primary charging wire cleaning: COPIER > FUNCTION > CLEANING
> WIRE-CLN)
13.3.2 After Replacing the Primary Charging Assembly
0014-0403
imagePRESS C1 P / imagePRESS C1
When replacing the primary charging wire, measure the grid height of the
charging assembly before replacing to check to see that the value is the same.
F-13-7
[1] Places to check (reference value: 1.0mm)
In case the measurement value is different, adjust the primary charging as-
sembly grid following the procedures below:
1) Loosen the screw [2] and release the stop.
2) Loosen the 2 fixing screws [3] and then turn the adjusting screw [3] to ad-
just.
Reference:
- When moving the front side down, turn the adjusting screw clockwise.
- When moving the front side up, turn the adjusting screw counterclockwise.
- 1 turn of the adjusting screw changes the grid height by 0.35mm.
+2,-1,30524101
CCDU-RG
CCDU-GB
[1]
[1]