Canon Color imageRUNNER C5180 Series, Service Manual

Page: 698 / 851

Chapter 19
19-53
1TR-TGM Adjusting target current offset of primary transfer ATVC (M)
Adjustment range: -5 to 5 (unit: 0.5 uA) (default: 0)
It is enabled when COPIER>OPTION>BODY>PTATVCSW = 1 (primary ATVC
control is enabled).
Change a setting value when any of the following faulty images occurs.
- Mottle marks/Mark of the auxiliary brush due to remaining transfer toner (when
color density of the brush mark is high)/Transfer ghost: Primary transfer current is
low. -> Change a setting value to the '+' direction.
- Fogging due to re-transfer/Mark of the auxiliary brush due to remaining re-transfer
toner (when color density of the former station is higher than that of the brush mark):
Primary transfer current is high -> Change a setting value to the '-' direction.
2
1TR-TGC Adjusting target current offset of primary transfer ATVC (C)
Adjustment range: -5 to 5 (unit: 0.5 uA) (default: 0)
It is enabled when COPIER>OPTION>BODY>PTATVCSW = 1 (primary ATVC
control is enabled).
Change a setting value when any of the following faulty images occurs.
- Mottle marks/Mark of the auxiliary brush due to remaining transfer toner (when
color density of the brush mark is high)/Transfer ghost: Primary transfer current is
low. -> Change a setting value to the '+' direction.
- Fogging due to re-transfer/Mark of the auxiliary brush due to remaining re-transfer
toner (when color density of the former station is higher than that of the brush mark):
Primary transfer current is high -> Change a setting value to the '-' direction.
2
1TR-TGK1 Adjusting target current offset of primary transfer ATVC (K: Black (monochrome)
mode)
Adjustment range: -5 to 5 (unit: 0.5 uA) (default: 0)
It is enabled when COPIER>OPTION>BODY>PTATVCSW = 1 (primary ATVC
control is enabled).
Change a setting value when any of the following faulty images occurs.
- Mottle marks/Mark of the auxiliary brush due to remaining transfer toner (when
color density of the brush mark is high)/Transfer ghost: Primary transfer current is
low. -> Change a setting value to the '+' direction.
- Fogging due to re-transfer/Mark of the auxiliary brush due to remaining re-transfer
toner (when color density of the former station is higher than that of the brush mark):
Primary transfer current is high -> Change a setting value to the '-' direction.
2
1TR-TGK4 Adjusting target current offset of primary transfer ATVC (K: 4C mode)
Adjustment range: -5 to 5 (unit: 0.5 uA) (default: 0)
It is enabled when COPIER>OPTION>BODY>PTATVCSW = 1 (primary ATVC
control is enabled).
Change a setting value when any of the following faulty images occurs.
- Mottle marks/Mark of the auxiliary brush due to remaining transfer toner (when
color density of the brush mark is high)/Transfer ghost: Primary transfer current is
low. -> Change a setting value to the '+' direction.
- Fogging due to re-transfer/Mark of the auxiliary brush due to remaining re-transfer
toner (when color density of the former station is higher than that of the brush mark):
Primary transfer current is high -> Change a setting value to the '-' direction.
2
COPIER>ADJUST>HV-TR
Sub item Description level.