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SERVICE PROGRAM TABLES April, 2007
5-88
006
DevGamma(EnvCorrct) Switches correction of the development gamma adjustment
with the readings of the temperature/humidity sensor OFF
and ON. Press either the "OFF" or "ON" button to toggle
the setting.
007
DevGamma(TimeCorrct)
Switches the timing of the development gamma adjustment
during process control OFF and ON. Press either the
"OFF" or "ON" button to toggle the setting.
3511
Poten Tbl:Disp Display Potential Table
Displays the numbers in the Potential Table selected for process control.
The Potential Table is the lookup table that contains the potential target values (Vd,
Vb, Vl) for adjustment of the development potential.
• Vd: Initial charge applied to the drum by the charge roller.
• Vb: Development bias
• Vl: Value used to correct the strength of the lasers.
A 10-grade pattern is first created on the drum and then transferred to the ITB:
• On the drum, the potential sensor uses their readings of this pattern to determine
development potential.
• On the ITB, the ID sensors use their readings of this pattern to determine the
amount of toner coverage necessary.
For more about process control, see "Process Control" in Section "6.11” of the Service
Manual
001
K Value
002
M Value
003
C Value
004
Y Value
Displays the current numbers in the Potential Table for each color.
[1~99/1]
005
Target: K
006
Target: M
007
Target: C
008
Target: Y
Displays the target values for Vd, Vb, Vl after measurements of
ambient conditions and compensating for residual charge on the drum
(Vr).
If the actual development gamma is less than the target development
gamma, this SP shows a smaller value than the selected pointer table
value.
If the actual development gamma is greater than the target
development gamma, this SP shows a larger value than the selected
pointer table value.
[1~99/1]
009
Initial: K
010
Initial: M
011
Initial: C
012
Initial: Y
Not used at this time (March 2005).