Canon imagePRESS 1135 Series Service Manual page 1139

COPIER> ADJUST> HV-TR
2TRATVCL Adj sec trns ATVC offset volt lowerlimit
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 lower 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> 2TRATVCH
2TR-RV-T Adj sec trns TRedge weakbias apply timng
Lv.2 Details To adjust the switching timing from the secondary transfer bias to the
trailing edge weak bias.
When the white spots on the trailing edge occurs, subtract 1 from 10
and check the result.
When the mottled image on the trailing edge occurs, add 1 to -10
and check the result.
As the value is changed by 1, distance from the trailing edge of
paper increases/decreases by 1 mm.
+:
-:
Use case White spot on the trailing edge occurs with thick paper.
When mottled image occurs on the trailing edge.
Adj/set/operate method Enter the setting value and press OK key.
Caution Check the result with using the paper that causes the image failure.
If there is no improvement, execute 2TR-RV.
Display/adj/set range -10 to 10
Unit 1 mm
Appropriate target value 0
Default value 0
Related service mode COPIER> ADJUST> HV-TR> 2RV-RV
8
Service Mode > COPIER > ADJUST (Adjustment Mode) > HV-TR
8 Service Mode > COPIER > ADJUST (Adjustment Mode) > HV-TR
COPIER> ADJUST> HV-TR
2TR-RV Adj sec trns trail edge weakbias current
Lv.2 Details To adjust the delta current value of secondary transfer trailing edge
weak bias (down level from the application current).
When the white spots on the trailing edge occurs, increase the value
and when the mottled image on the trailing edge occurs, decrease
the value.
As the value is changed by 1, delta current is increased/decreased
by 1 uA.
+: Increase
-: Decrease
Use case White spot on the trailing edge occurs with thick paper.
When mottled image occurs on the trailing edge.
Adj/set/operate method Enter the setting value and press OK key.
Caution Execute this if there is no improvement by 2TR-RV-T.
Check the result with using the paper that causes the image failure.
If there is no improvement, execute RV-TMNG.
Display/adj/set range -10 to 10
Unit 1 uA
Default value 0
Related service mode COPIER> ADJUST> HV-TR> 2TR-RV-T, RV-TMNG
2TR-CLOF Adj of sec trns clean bias target currnt
Lv.2 Details To adjust the offset value of target current of cleaning bias that is
applied to the secondary transfer inner roller for the cleaning of
secondary transfer outer roller.
When back soil occurs, increase the value 1 by 1 and check the
result each time.
As the value is increased by 1, the current is increased by 5 uA.
Use case When the image failure occurs due to the cleaning failure of the
secondary transfer outer roller (related to back soil).
Adj/set/operate method Enter the setting value and press OK key.
Display/adj/set range -25 to 10
Unit 5 uA
Appropriate target value 0
Default value 0
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