Canon imageRUNNER ADVANCE 4551i Service Manual page 688

COPIER > ADJUST > HV-PRI
OFST1-AC 1
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Default Value
Amount of Change per
Unit
■ HV-TR
COPIER > ADJUST > HV-TR
TR-OFST 1
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Unit
Default Value
Supplement/Memo
Amount of Change per
Unit
TR-TP-TM 1
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Unit
Default Value
Related Service Mode
Amount of Change per
Unit
Adj primary charge AC offset 1
To adjust the offset value of the primary charging AC bias.
+: The offset value increases.
-: The offset value decreases.
- When the image is failure.
- When replacing the DC Controller PCB/clearing RAM data, enter the value of service label.
Enter the setting value (switch negative/positive by -/+ key) and press OK key.
After the setting value is changed, write the changed value in the service label.
-128 to 127
0
0.5
Adj transfer target bias offset
To adjust the offset output value of the transfer charging bias (constant current / constant voltage).
When replacing the DC Controller PCB/clearing RAM data
Enter the setting value (switch negative/positive by -/+ key) and press OK key.
After the setting value is changed, write the changed value in the service label.
-128 to 127
% (duty)
0
As the value is changed by 1, the bias is changed by 1.0444(constant current)/1.33(constant
voltage)
1.0444/1.33
Adj transfer lead edge weak bias time
This mode determines the time to apply voltage for transfer leading edge weak bias during the
second printing of 2-sided..
+: The application time increases.
-: The application time decreases.
When the fixing delivery delay jam occurs, increase the application time.
This item is used when the fixing delivery delay jam (0107) of the 2nd side of 2-sided occurs in the
following condition.
- High temperature/high humidity environment
- The cassette heater is ON
- Use of the thin paper 1 and plain paper 1/2
Enter the setting value, and then press OK key.
When the transfer bias level (TR-TP-LV) is increased and the application time (TR-TP-TM) is too
shorter, the jam may occur easily.
When the transfer bias level (TR-TP-LV) is decreased and the application time (TR-TP-TM) is too
longer, the leading part of the image becomes light.
When the setting of TR-TP-LV is not 0, the setting of TR-TP-TM becomes effective.
0 to 127
msec
0
COPIER> ADJUST> HV-TR> TR-TP-LV
5
675
8. Service Mode