and
Adjustment
4.3.5 COLOR REGISTRATION
Line Position Adjustment
The automatic line position adjustment usually is done for a specified condition to get the best
color prints.
Do the following if color registration shifts:
 Do "Auto Color Registration" as follows to do the forced line position adjustment.
1. First do SP2-111-3.
2. Then do SP2-111-1.
To check if SP 2-111-1 was successful, watch the screen during the process. A message is
displayed at the end. Also, you can check the result with SP 2-194-10 to -12.
 You should also do the line position adjustment at these times:
 After you transport or move the machine (you should do the forced line position
adjustment if you install the machine at the user location.) if the machine is pre-installed
at the workshop and moved to the user location,
 When you remove or replace the motors, clutches, and/or gears related to the
drum/development/transfer sections
 When you remove or replace the image transfer belt, image transfer belt unit or laser
optical housing unit
4.3.6 PRINTER GAMMA CORRECTION
 The ACC is usually sufficient to adjust the color balance to get the best print output. You
only need the printer gamma correction to fine-tune to meet user requirements.
Use SP modes if you want to modify the printer gamma curve created with ACC. You can adjust
the gamma data for the following:
 Highlight
 Middle
 Shadow areas
 IDmax.
The adjustable range is from 0 to 30 (31 steps).
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