Canon MF735C Series Service Manual page 301

COPIER (Service mode for copier) > FUNCTION (Operation / inspection mode) > MISC-R
1PSCLB-B
Detail
Use Case
Adj/Set/Operate Method
Caution
Related Service Mode
Supplement/Memo
1PCLBUDR
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Default Value
Related Service Mode
1PCLBOVR
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Default Value
Related Service Mode
Exe frt/bck clr differ calibration: bck
To read the PG for calibrating color difference between the front and back sides with the Scanner
Unit (for back side) in order to correct the color difference between the front and back sides at
duplex stream reading.
A significant color difference may occur between the images on the front and back sides scanned
with the DADF caused by variations in the LED and changes in durability. Such a color difference
is corrected by executing 1PSCLB-B following 1PSCLB-A.
When a significant color difference occurs between the front and back side at DADF duplex reading
1) Place the paper used by 1PSCLB-A on the DADF so that the front side is faced down and the
cyan image is placed at the left rear side.
2) Select the item, and then press OK key.
- Do not turn OFF/ON the main power switch during execution of 1PSCLB-A and then 1PSCLB-
B.
- Until 1 is displayed in both 1P-ERR-A and 1P-ERR-B, calibration of color difference between the
front and back sides is not completed.
COPIER> FUNCTION> MISC-R> 1PSCLB-A
COPIER> DISPLAY> CCD> 1P-ERR-A/B
The execution result of this item is displayed in 1P-ERR-B.
ON/OFF frt/bck clr dif calibr l-lmt set
To set whether to set the lower limit of the target color difference for correction when correcting
color difference between the front and back sides at duplex stream reading.
In some cases, colors which do not need to be corrected are also corrected by performing color
difference correction at duplex stream reading.
When 1 is set, the correction level is adjusted to weaken the effect of correction. Unnecessary
correction is not executed, but an expected effect may not be obtained for other colors.
The result is reflected when color difference correction is executed again after the setting is made.
When color difference occurs on the colors which did not have any difference before correction
Enter the setting value, and then press Apply key.
Expected correction result may not be obtained.
0 to 1
0: OFF
1: ON
0
COPIER> FUNCTION> MISC-R> 1PSCLB-A/B, 1PCLBOVR
ON/OFF frt/bck clr dif calibr u-lmt set
To set whether to set the upper limit of the target color difference for correction when correcting
color difference between the front and back sides at duplex stream reading.
Excessive correction is sometimes made when correcting color difference at duplex stream
reading.
When 1 or 2 is set, the correction level is adjusted to weaken the effect of correction. Excessive
correction is not executed, but an expected effect may not be obtained for other colors.
The result is reflected when color difference correction is executed again after the setting is made.
When color difference occurs on the colors which did not have any difference before correction
Enter the setting value, and then press Apply key.
Expected correction result may not be obtained.
0 to 2
0: No control
1: Weak control
2: Strong control
0
COPIER> FUNCTION> MISC-R> 1PSCLB-A/B, 1PCLBUDR
292
9. Service Mode