MINOLTA-QMS magicolor 6100 Series Service Manual page 197

6.5.2
magicolor 6100 Series Service Manual
Setting of RAM Data
As Data in RAM has been preset to the optimum value at the factory, it is not neces-
sary to change the preset value under normal conditions. However, fine adjustment
may be required subject to media or operational conditions.
6.5.2.1 Purpose:
Print quality can be improved by changing the preset value in RAM.
6.5.2.2 Procedures:
1. Follow the procedures set out in 6.4 Service Mode.
2. Select RAM TUNE UP mode.
3. Select the desired TUNE UP mode.
4. Adjust the preset value to the appropriate value (step).
5. Implement the test print to confirm the print quality.
6.5.2.3 TUNE UP Modes
Mode
LP TUNE UP
THV TUNE UP
DBV TUNE UP
CBV TUNE UP
FBV TUNE UP
ACV TUNE UP
Table 6-29: Tune Up Modes
Adjustment
Adjustment of laser power
Adjustment of transfer
voltage
Adjustment of developer
bias
Adjustment of OPC belt bias
Adjustment of cleaning
roller bias
Adjustment of paper
discharging output bias
Purpose
Optical density
Transfer efficiency
Optical density
Development efficiency
Drum cleaning efficiency
Drum jam prevention
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