Epot (Photosensitive Drum Surface Potential Control Data) - Canon 1000 Service Manual

5. EPOT (photosensitive drum surface potential control data)

DISP
COUNTER
ADJUST
FUNC
OPTION
TEST
Item
VOO=Y/M/C/K Indicates the target value for VD (with laser output at
00).
Indicates the optimum value computed by potential
control.
VFF=Y/M/C/K Indicates the target value for VL (with laser output at
off).
Indicates the optimum value computed by potential
control.
VDC=Y/M/C/K Indicates the target value for Vdc (developing bias DC
component).
Indicates the optimum value computed by potential
control.
VG=Y/M/C/K Indicates the target value for Vg (grid bias).
Indicates the optimum value computed by potential
control.
The measurements of VOO and VFF may be checked by 'EPC' under 'FUNC'.
COPYRIGHT © 2001 CANON INC.
<M> <S>
EPOT
V00-Y
V00-M
xxx xxx
VFF-Y
VFF-M
xxxxx
xxxxx
VDC-Y
VDC-M
xxx
xxx
VG-Y
VG-M
xxxxx
xxxxx
Description
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
<R> <P>
V00-C V00-K
xxx
VFF-K
VFF-C
xxxxx
VDC-K
VDC-C
xxx
VG-K
VG-C
xxxxx
<F>
xxx
xxxxx
xxx
xxxxx
Remarks
Unit = V
Optimum value: 350 to
800
Unit = V
Optimum value: 50 to
300
Unit = V
Optimum value: 200 to
650
Unit = V
Optimum value: 300 to
800
7-199