Canon iR4570 Series Service Manual page 881

Sub-item
LA-OFF
LA-
DELAY
POWER
<DEVELOP>
Sub-item
DE-OFST
<DENS>
T-16-19
COPIER > ADJUST > LASER
Description
Adjusting the rear-end laser OFF position
<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 a delay value after laser unit displacement (Matching the
laser main scan)
<Setting range> 360 to 440
Enter the delay value peculiar to the unit affixed to the unit at laser unit
replacement.
Adjusting the laser power
<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.
T-16-20
COPIER > ADJUST > DEVELOP
Entering an offset value for the developing bias DC
<Setting range> -128 to 127 (Default: 0)
Setting a greater value increases the density.
Description
Chapter 16
Level
1
1
1
Level
1
16-37