Scanning System; When Replacing The Adf Scanning Glass - Canon iR3245 Series Service Manual

Chapter 14

14.2 Scanning System

14.2.1 After Replacing the Reader Controller PCB or
Initializing the RAM
iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
Be sure to output the latest P-PRINT before replacing the reader
controller PCB.
-In the case of executing RAM clear (initialization) for the reader
controller without replacing the PCB, use SST to upload the backup data
of R-CON, and download it after initializing the RAM so that you do not
need to perform the following
1.Reader Unit-Related Adjustments
1)Use SST to download the latest system software (R-CON)
2)Select the following in Service Mode: COPIER > FUNCTION > CLEAR
> R-CON.
Then, select OK to initialize the RAM; thereafter, turn off and then on the
main power.
3)Enter the following values in Service Mode:
a. Values indicated on the service label (found inside the reader left cover)
a-1. CCD read position adjustment (for fixed reading)
COPIER > ADJUST > ADJ-XY > ADJ-X
a-2. Main (horizontal) scanning direction position adjustment (fixed reading)
COPIER > ADJUST > ADJ-XY > ADJ-Y
a-3. Shading position adjustment (fixed reading)
COPIER > ADJUST > ADJ-XY > ADJ-S
a-4. Main (horizontal) scanning direction MTF
COPIER > ADJUST > CCD > MTF3-M1/M2/M3/M4/M5/M6/M7/M8/M9
Then, confirm the setting by selecting the following:
COPIER > ADJUST > CCD > CCD-CHNG
a-5. Copyboard sub (vertical) scanning direction magnification ratio adjust-
ment
COPIER > ADJUST > ADJ-XY > ADJ-X-MAG
a-6. PASCAL offset (black) adjustment
COPIER > ADJUST > PASCAL > OFST-P-K
a-7. 100% color displacement correction value
COPIER > ADJUST > CCD > 100-RG/100-GB
a-8. 50% color displacement correction value
COPIER > ADJUST > CCD > 50-RG/50-GB
b.Entering the data of the standard white plate
COPIER>ADJUST>CCD>W-PLT-X/Y/Z
8 2 0 6 8 6 6 7 9 3 4 9
2.ADF-Related Adjustments
This machine stores ADF-related service data in the reader controller
RAM. Thus, if you have replaced the reader controller or initialized the
RAM, you will also have to make ADF-related adjustments.
1)Enter P-PRINT value you have previously printed out in Service Mode.
a. Main (horizontal) scanning direction position adjustment (for stream
reading)
COPIER > ADJUST > ADJ-XY > ADJ-DF
b. Trail edge registration adjustment
FEEDER > ADJUST > DOCST
c. Magnification ratio adjustment
FEEDER > ADJUST > LA-SPEED
2)Make adjustments using the following items:
a. Tray width adjustment
FEEDER > FUNCTION > TRY-A4
FEEDER > FUNCTION > TRY-A5R
FEEDER > FUNCTION > TRY-LTR
FEEDER > FUNCTION > TRY-LTRR
b. CCD read position adjustment (stream reading)
COPIER > FUNCTION > INSTALL > STRD-POS
c. White level adjustment
COPIER > FUNCTION > CCD > DF-WLVL1 (B/W)
COPIER > FUNCTION > CCD > DF-WLVL2 (B/W)
COPIER > FUNCTION > CCD > DF-WLVL3 (Color)
COPIER > FUNCTION > CCD > DF-WLVL4 (Color)
14-4
F-14-12
When you have made all the foregoing adjustments, put the P-PRINT [1]
(you have printed out) in the service book case, and dispose of the previous
printout (P-PRINT).
0019-6055
14.2.2 When Replacing the CCD Unit
iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
Go through the following procedure after replacing the CCD unit.
1)Enter the value on the label attached to the CCD unit in Service Mode (fol-
lowing 2 items).
-COPIER > ADJUST > CCD > MTF3-M1/M2/M3/M4/M5/M6/M7/M8/
M9
Then, confirm the setting by selecting the following:
-COPIER > ADJUST > CCD > CCD-CHNG
2)Note down the above correction values on the service label inside the host
machine's left cover.
3)Execute the following in Service Mode:
-ADF whit level adjustment (COPIER > FUNCTION > CCD > DF-WLVL1/
WLVL2/WLVL3/WLVL4)
14.2.3 When Replacing the Copyboard Glass
iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
Execute the following in Service Mode:
Be sure to execute white plate data adjustment before the ADF white
level adjustment.
-Enter the numeric figure on the copyboard glass (see the figure below) by
selecting the following in Service Mode:
COPIER > ADJUST > CCD > W-PLT-X/Y/Z
Enter the standard white plate data
-ADF white level adjustment (COPIER > FUNCTION > CCD > DF-
WLVL1/2/3/4)

14.2.4 When Replacing the ADF Scanning Glass

iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
[1]
F-14-13
F-14-14
8 2 0 6 8 6 6 7 9 3 4 9
F-14-15
0019-4734
0019-6057
0019-6054