Canon imagePRESS 1135 Series Service Manual page 1138

COPIER> ADJUST> HV-TR
1TR-TGT7 Adj of prmry trnsfer target current(Ev6)
Lv.2 Details To set the target current that is applied to the primary transfer roller
under the condition of absolute moisture ratio from 18 to 21.5 g/m
When mottled image occurs, increase the current and when water-
drop mark occurs, decrease the current.
As the value is increased by 1, the current is increased by 5 uA.
+: Increase
-: Decrease
Use case When the image failure due to primary transfer occurs (related to
mottled image, water-drop mark)
Adj/set/operate method Enter the setting value and press OK key.
Caution Increase/decrease the value 1 by 1 and check the symptom each
time. If too large value is set, high-voltage mottled image occurs.
Display/adj/set range -10 to 10
Unit 5 uA
Default value 0
Related service mode COPIER> ADJUST> HV-TR> 1TR-TGT1, 1TR-TGT2, 1TR-TGT3,
1TR-TGT4, 1TR-TGT5, 1TR-TGT6, 1TR-TGT8
1TR-TGT8 Adj of prmry trnsfer target current(Ev7)
Lv.2 Details To set the target current that is applied to the primary transfer roller
under the condition of absolute moisture ratio 21.6 g/m
When mottled image occurs, increase the current and when water-
drop mark occurs, decrease the current.
As the value is increased by 1, the current is increased by 5 uA.
+: Increase
-: Decrease
Use case When the image failure due to primary transfer occurs (related to
mottled image, water-drop mark)
Adj/set/operate method Enter the setting value and press OK key.
Caution Increase/decrease the value 1 by 1 and check the symptom each
time. If too large value is set, high-voltage mottled image occurs.
Display/adj/set range -10 to 10
Unit 5 uA
Default value 0
Related service mode COPIER> ADJUST> HV-TR> 1TR-TGT1, 1TR-TGT2, 1TR-TGT3,
1TR-TGT4, 1TR-TGT5, 1TR-TGT6, 1TR-TGT7
8
Service Mode > COPIER > ADJUST (Adjustment Mode) > HV-TR
3
.
3 or more.
8 Service Mode > COPIER > ADJUST (Adjustment Mode) > HV-TR
COPIER> ADJUST> HV-TR
1TR-BB Adj of pri trns current at Bk band squnc
Lv.2 Details To adjust the primary transfer target current at black band sequence
(interrupt).
At black band sequence, toner is supplied to the cleaner unit to
prevent the toner from running out on the cleaner blade.
As the value changed by 1, the current is increased/decreased by
5 uA. Toner supply destination differs depending on whether the
negative or positive value is set.
+: To ITB cleaner unit
-: To drum cleaner unit
Use case When the image failure occurs due to the failure of drum cleaning/
ITB cleaning.
Adj/set/operate method Enter the setting value and press OK key.
Caution Execute this when the image failure cannot be fixed by cleaning.
Display/adj/set range -10 to 10
Unit 5 uA
Default value 0
Related service mode COPIER> ADJUST> HV-TR> 1TR-WB
2TRATVCH Adj sec trns ATVC offset volt upperlimit
Lv.2 Details At the secondary transfer ATVC control, to calculate the application
voltage at the image formation, upper and lower limit are specified
for approximate voltage.
To adjust the potential difference between the application voltage
and the upper limit of approximate voltage.
As the value is changed by 1, voltage is decreased/increased by 10 V.
+: Increase
-: Decrease
Use case When the image failure due to the secondary transfer occurs (related
to mottled image).
Adj/set/operate method Enter the setting value and press OK key.
Display/adj/set range -10 to 10
Unit 10 V
Appropriate target value 0
Default value 0
Related service mode COPIER> ADJUST> HV-TR> 2TRATVCL
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8-195