Canon imagePRESS 1135 Series Service Manual page 977

COPIER> DISPLAY> DPOT
EPC-VL1 Dspl of potential VL1 at potential cntrl
Lv.1 Details Displaying light area potential VL1 at the time of laser output (50H)
that is measured by potential control.
In normal status, it will be VL4<VL3<VL2<VL1<500 (V).
In abnormal status, this can identify an assumed cause from
potentail sensor, drum and charging assembly.
Use case When the image density is out of the reference, check if there is fault
in potential control.
Adj/set/operate method N/A (display only)
Display/adjust/set range 0 to 600
Unit V
Appropriate target value 80 to 450
Related service mode COPIER> DISPLAY> DPOT> EPC-VL2, EPC-VL3, EPC-VL4
EPC-VL2 Dspl of potential VL2 at potential cntrl
Lv.1 Details Displaying light area potential VL2 at the time of laser output (90H)
that is measured by potential control.
In normal status, it will be VL4<VL3<VL2<VL1<500 (V).
In abnormal status, this can identify an assumed cause from
potentail sensor, drum and charging assembly.
Use case When the image density is out of the reference, check if there is fault
in potential control.
Adj/set/operate method N/A (display only)
Display/adjust/set range 0 to 600
Unit V
Appropriate target value 80 to 450
Related service mode COPIER> DISPLAY> DPOT> EPC-VL1, EPC-VL3, EPC-VL4
EPC-VL3 Dspl of potential VL3 at potential cntrl
Lv.1 Details Displaying light area potential VL2 at the time of laser output (C0H)
that is measured by potential control.
In normal status, it will be VL4<VL3<VL2<VL1<500 (V).
In abnormal status, this can identify an assumed cause from
potentail sensor, drum and charging assembly.
Use case When the image density is out of the reference, check if there is fault
in potential control.
Adj/set/operate method N/A (display only)
Display/adjust/set range 0 to 600
Unit V
Appropriate target value 80 to 450
Related service mode COPIER> DISPLAY> DPOT> EPC-VL1, EPC-VL2, EPC-VL4
8
Service Mode > COPIER > DISPLAY (Status Display Mode) > DPOT
8 Service Mode > COPIER > DISPLAY (Status Display Mode) > DPOT
COPIER> DISPLAY> DPOT
EPC-VL4 Dspl of potential VL4 at potential cntrl
Lv.1 Details Displaying light area potential VL2 at the time of laser output (F0H)
that is measured by potential control.
In normal status, it will be VL4<VL3<VL2<VL1<500 (V).
In abnormal status, this can identify an assumed cause from
potentail sensor, drum and charging assembly.
Use case When the image density is out of the reference, check if there is fault
in potential control.
Adj/set/operate method N/A (display only)
Display/adjust/set range 0 to 600
Unit V
Appropriate target value 80 to 450
Related service mode COPIER> DISPLAY> DPOT> EPC-VL1, EPC-VL2, EPC-VL3
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