Canon 7086 Series, Service Manual

Page: 598 / 735

Chapter 17
17-10
Displaying Voltage/Current Settings after Photosensitive Drum Surface Potential Control
T-17-5
<CCD>
T-17-6
<DPOT>
Displaying Photosensitive Drum Surface Potential Control Data
T-17-7
COPIER > DISPLAY > HV-STS
Sub item Description Level
PRIMARY Current setting of the primary charging (uA) 1
PRI-GRID Grid voltage setting of the primary charging (V) 1
PRE-TR Current setting of the pre-transfer charging (uA) 1
TR Current setting of the transfer charging (uA) 1
SP Current setting of the separation charging (uA) 1
BIAS Developing DC bias setting (V) 1
COPIER > DISPLAY > CCD
*: model equipped with DADF-Q1 (outside Japan: iR7105/7095; inside Japan: All model).
**: model equipped with DADF-M1 (outside Japan: iR7086).
Sub item
Description
Descripti
on
TARGET-G shading target value of green for the CCD 2
GAIN gain level adjustment value for the CCD 2
GAIN-OG gain level adjustment value for green of the odd-number bits of the CCD 2
GAIN-OR * gain level adjustment value for red of the odd-number bits of the CCD 2
GAIN-EG gain level adjustment value for green of the even-number bits of the CCD 2
GAIN-ER * gain level adjustment value for red of the even-number bits of the CCD 2
COPIER > DISPLAY > DPOT
MEMO:
For items other than DPOT-K, displaying value at the time of the latest potential control.
Sub item Description Level
DPOT-K photopositive drum surface potential (real-time indication)
rage: 0 to 600
1
VL1T light area potential target value (for copier)
range: 0 to 600
1
VL1M light area potential measurement value (for copier)
range: 0 to 600; approx. optimum: VL1T +/-6 V
1
VDT dark area potential target value (for copier)
range: 0 to 600
1
VDM dark area potential measurement value (for copier)
range: 0 to 600; approx. optimum: VDT +/-6 V
1
VG-K primary charging grid voltage (for copier)
range: 0 to 900
1
VL1M-P light area potential measurement level (for printer)
range: 0 to 600; approx. optimum: VL1T-P +/-6 V
1
VL1T-P light area potential target value (for printer)
range: 0 to 600
1
BIAS-P developing bias voltage (for printer)
range: 0 to 600
1
BIAS-C developing bias voltage (for copier)
range: 0 to 600
1
LPOWER-P laser power value (for printer)
range: 0 to 255
1
LPOWER-C laser power value (for copier)
range: 0 to 255
1
VDM-P dark area potential measurement (for printer)
range: 0 to 600; approx. optimum: VDT-P +/-6 V
1
VDT-P dark area potential target value (for printer)
range: 0 to 600
1
VDT-S dark area potential target value (OHT, heavy paper, tracing paper)
range: 0 to 600
1
VDM-S dark area potential measurement value (OHT, heavy paper, tracing paper)
range: 0 to 600; approx. optimum: VDT-S +/-6 V
1