Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 448

COPIER> ADJUST> HV-PRI
DIS-TGM2 Discharge current ctrl M offset adj
Lv.2 Details To adjust the offset of the target current for M upon discharge current
control for plain paper.
Caution Do not use this when the machine is operating correctly.
Display/adj/set range -20 to 20
Unit Approx. 5 uA
Default value 0
DIS-TGC2 Discharge current ctrl C offset adj
Lv.2 Details To adjust the offset of the target current for C upon discharge current
control for plain paper.
Caution Do not use this when the machine is operating correctly.
Display/adj/set range -20 to 20
Unit Approx. 5 uA
Default value 0
PRI-GAIN [Not used]
PRI-OFST [Not used]
OFSTAC-Y Adj of Y color charging AC voltage
Lv.1 Details To adjust the offset of the charge AC voltage for Y.
As the value is incremented by 1, the voltage value is increased by
20 Vpp.
Increase the value when the density is low and decrease the value
when the density is high or a spotted image occurs.
Use case • At the occurrence of an image density failure
• At the occurrence of a spotted image
Adj/set/operate method Enter the setting value, and then press OK key.
Caution • Do not use this when the machine is operating correctly.
• If the value is too large, the life of the Photosensitive Drum
5
becomes shorter.
Display/adj/set range -20 to 20
Unit 20 Vpp
Default value 0
Required time 1 minute
Related service mode COPIER> ADJUST> HV-PRI> OFSTAC-M, OFSTAC-C
5-220
COPIER> ADJUST> HV-PRI
OFSTAC-M Adj of M color charging AC voltage
Lv.1 Details To adjust the offset of the charge AC voltage for M.
As the value is incremented by 1, the voltage value is increased by
20 Vpp.
Increase the value when the density is low and decrease the value
when the density is high or a spotted image occurs.
Use case • At the occurrence of an image density failure
• At the occurrence of a spotted image
Adj/set/operate method Enter the setting value, and then press OK key.
Caution • Do not use this when the machine is operating correctly.
• If the value is too large, the life of the Photosensitive Drum
becomes shorter.
Display/adj/set range -20 to 20
Unit 20 Vpp
Default value 0
Required time 1 minute
Related service mode COPIER> ADJUST> HV-PRI> OFSTAC-Y, OFSTAC-C
OFSTAC-C Adj of C color charging AC voltage
Lv.1 Details To adjust the offset of the charge AC voltage for C.
As the value is incremented by 1, the voltage value is increased by
20 Vpp.
Increase the value when the density is low and decrease the value
when the density is high or a spotted image occurs.
Use case • At the occurrence of an image density failure
• At the occurrence of a spotted image
Adj/set/operate method Enter the setting value, and then press OK key.
Caution • Do not use this when the machine is operating correctly.
• If the value is too large, the life of the Photosensitive Drum
becomes shorter.
Display/adj/set range -20 to 20
Unit 20 Vpp
Default value 0
Required time 1 minute
Related service mode COPIER> ADJUST> HV-PRI> OFSTAC-Y, OFSTAC-M