Canon iR4570 Series Service Manual page 799

Sub-item
OFST1-
DC
OFST1-
AC
<HV-TR>
Sub-item
TR-OFST
TR-SPP
TR-TP-TM
T-16-23
COPIER > ADJUST > HV-PRI
Entering an adjustment value for primary charge DC offset 1
<Setting range> -128 to 127 (Default: 0)
If RAM on the DC controller circuit board has been cleared or the board
itself has been replaced, enter the value from the service label.
Note: If the compound power circuit board has been replaced, enter the
value from the label affixed to the casing of the new compound power
circuit board.
Entering an adjustment value for primary charge AC offset 1
<Setting range> -128 to 127 (Default: 0)
If RAM on the DC controller circuit board has been cleared or the board
itself has been replaced, enter the value from the service label.
Note: If the compound power circuit board has been replaced, enter the
value from the label affixed to the casing of the new compound power
circuit board.
T-16-24
COPIER > ADJUST > HV-TR
Entering an output adjustment value for transfer charge current offset
<Setting range> -128 to 127 (Default: 0)
If RAM on the DC controller circuit board has been cleared or the
board itself has been replaced, enter the value from the service label.
Entering an output adjustment value for thick-paper transfer bias (for
simplex printing on thick paper and duplex printing on the 1/2 side)
- Increasing the value is very effective.
<Setting range> -128 to 127 (Default: 0)
If RAM on the DC controller circuit board has been cleared or the
board itself has been replaced, enter the value from the service label.
Adjusting the time of applying weak bias to the transfer tip
<Setting range> 0 to 127 (Default: 0) (Unit: 2 ms)
If RAM on the DC controller circuit board has been cleared or the
board itself has been replaced, enter the value from the service label.
Description
Description
Chapter 16
Level
1
1
Level
1
1
1
16-39