Canon imageRUNNER 2270 Service Manual page 743

Chapter 16
<DPC>
Sub-item
D-GAMMA Controlling photoconductor drum resistance measurement (APVC)
Note: Execute this mode only in the following cases and skip it when
unnecessary.
- Adjustment if the drum unit has been replaced
- Fault isolation if automatic copy density adjustment (PD-ME) has ended
abnormally
- Reference for checking the drum endurance
<Operating procedure>
1) Select an item and press the OK key.
2) Automatic control terminates after outputting one blank copy.
3) Select DISPLAY>HV-STS>PRIMARY to display the measurement results.
<CST>
Sub-item
MF-A4R Registering the basic paper width of the manual feeder (DADF)
MF-A6R A4R width: 210 mm, A6R width: 105 mm, A4 width: 297 mm
MF-A4 For micro adjustment after basic width registration, select MF-A4R, MF-A6R,
or MF-A4 from COP. COPIER>ADJUST>CST-ADJ.
<Operating procedure>
1) Place an A4R size document on the manual feed and align the size guide with
the A4R width.
2) Select (MF-A4R) in this service mode to reverse its display. Press the OK key
to register the numeric value after automatic adjustment.
3) Also about the A6R and A4 sizes, register the basic width by following the
steps of 1) and 2).
16-58
T-16-34
COPIER > FUNCTION > DPC
Description
T-16-35
COPIER > FUNCTION > CST
Description
Level
1
Level
1