Canon imagePRESS 1110, Service Manual

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Service Mode > COPIER > DISPLAY (Status Display Mode) > DPOT
Service Mode > COPIER > DISPLAY (Status Display Mode) > DPOT
COPIER> DISPLAY> CCD
GAIN2-EB Gain level of img sensr even bit(B) back
Lv.2 Details Displaying the Blue gain level adjustment value in even-numbered
bit on CMOS sensor of back side scanner unit.
Continuous display of upper limit can determine a failure of the
scanner unit/reader controller PCB.
Use case • When the reader controller PCB is replaced.
• When failure appears on the scanned image.
Adj/set/operate method N/A (display only)
Display/adjust/set range 1 to 47
Appropriate target value 1 to 47
OFST2-CL Img sensor offset value (color) [Back]
Lv.2 Details Displaying the CMOS sensor offset value at color scanning.
Use case When image failure occurs at back side scanning in color mode.
Adj/set/operate method N/A (display only)
Display/adjust/set range 1 to 95
Appropriate target value 1 to 95
T-8-8
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DPOT
COPIER> DISPLAY> DPOT
DPOT-K Display of Bk drum surface potential
Lv.1 Details Displaying the front surface potential on the photosensitive drum in
Bk as of this moment.
The value after the calculation of potential offset is displayed.
If the offset value is not adjusted, negative value may be detected
during printing.
Use case if abnormality of the density and fogging image occurs, check
whether the surface potential of the drum is the factor.
Adj/set/operate method N/A (display only)
Caution
• To update the display, be sure to move to a different screen, and
then move back to be displayed again (to display the potential at
the moment of display of this screen)
• If the value is out of range (-30 to 30), there is a possibility of open
cercuit on potential sensor.
Display/adjust/set range -30 to 720
Unit
V
Appropriate target value -30 to 30 (Approx. 0 at standby)
VL1T Dspl of lght area ptntl trgt vl(fr copy)
Supplement/memo 1 sec refresh time
VDM Display of dark area potential
Lv.1 Details To check the result of potential control, displaying the dark area
potential Vd in current position.
Use case • When checking potential in dark area when creating image.
• When checking potential in dark area after OFST adjustment
Adj/set/operate method N/A (display only)
Display/adjust/set range 0 to 600
Appropriate target value 490 to 510
Related service mode
COPIER> FUNCTION> DPC> OFST
VDT-SNS Dark area target VL in potentl snsr pstn
Lv.2 Details Displaying the target value for dark area potential Vd at potential
sensor position
Use case • When checking if the potential Vd at the potential sensor position
reaches the target value while formulating image.
• In the case that a fault of the potential sensor is suspected, check
the sensor output between the potential sensor and the potential
sensor PCB or between the potential sensor PCB and the DC
controller PCB to see if the potential reaches the target value.
Adj/set/operate method N/A (display only)
Display/adjust/set range -30 to 720
Unit
V
Appropriate target value 520 to 540
Related service mode
COPIER> DISPLAY> DPOT> VDM