K117sm8e7
8-70
652 Density Compensation ON/OFF
It is possible to decide whether Density Compensation is enabled.
Setting value Contents
0 Density Compensation Process is disabled
1 Density Compensation Process is enabled
Reference
Density Compensation Process is performed as follows.
1. Several solid patches are created on Drum and are measured by Density Sensor at a
regular interval of Main Motor operating time (No.655).
This is called Density Measure.
2. If the current density value (calculated based on Density Measure) does not meet Target
Density (No.653), one of the Adjustment Level listed below will be applied.
3. Developer Bias and Regulation Bias (No.650) will be adjusted based on the current
Adjustment Level.
Adjustment
Level 0
Adjustment
Level 1 (Default)
Adjustment
Level 2
Adjustment
Level 3
Developer Bias
(Negative)
-180V
-230V -230V -230V
Regulation Bias
against Developer Bias
-80V -80V
-120V -160V
Adjustment Adjustment Adjustment Adjustment
Level 0 Level 1 (Default) Level 2 Level 3
50V
40V
40V
-180V
0V
-100V
-200V
-300V
-400V
-500V
-230V -230V -230V
160
120
80
80
NOTE
Even if Developer Unit is replaced, still the current Auto Adjustment will continue to be
applied.
An applied Auto Adjustment Level should be manually set to
“0000001” after replacing
Developer Unit.
Developer Bias
Regulation Bias
against
Developer Bias
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