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36 ADJUSTMENT
2.
Auto drum potential adjustment
Automatically adjusting the development bias and drum
applied voltage by measuring the drum potential.
This adjustment should be performed when the
drum or developer is replaced.
Preparation: Be sure the drum unit is set.
Step
1
Enter the 36 mode.
2
[36 Mode Menu Screen]
Press "
Process adjustment."
1
3
[Process adjustment Screen]
Press "
Drum peculiarity Adjustment."
2
4
[Drum peculiarity adjustment mode
menu Screen]
Press "
Auto drum potential adjustment."
2
5
[Auto drum potential adjustment
Screen]
Press the
START
Development bias and applied voltage are
adjusted automatically.
Adjustment completes in about 10 sec-
onds and an end message is displayed.
6
Press the
PREVIOUS SCREEN
turn to the Process adjustment Screen.
Reference 1:
If any one of the following error messages ap
pears during auto drum potential adjustment,
clean the DPSB (drum potential sensor board),
check its installation state, and retry the auto
drum potential adjustment.
<1> Error 1:
During drum surface sensor 0 V check, a
voltage over 100 V has been detected for 5
or more times.
<2> Error 2:
It has been judged that Vl is 350 V or higher
and no control patch is output.
<3> Error 3:
Drum potential has been corrected 10 or
more times, but it does not converge.
Operation
key.
key to re-
1 - 54
3.
Auto maximum density adjustment
(Dmax adjustment)
Automatically adjusting maximum density (Dmax).
This adjustment should be performed when the
drum, developer, write unit, or dust-proof glass is
replaced.
Preparation: Be sure the drum unit is set,
developer is in the developing unit.
Auto drum potential adjustment
must have been complete.
Step
1
Enter the 36 mode.
2
[36 Mode Menu Screen]
Press "
Process adjustment."
1
3
[Process adjustment Screen]
Press "
Drum peculiarity adjustment."
2
4
[Drum peculiarity adjustment mode
menu Screen]
Press "
Auto maximum density adj."
3
5
[Auto maximum density adjustment
Screen]
Press the
START
The maximum density (Dmax) is adjusted
automatically.
Adjustment completes in about 20 sec-
onds and an end message is displayed.
6
Press the
PREVIOUS SCREEN
turn to the Process adjustment Screen.
Reference 1:
If any one of the following error messages
appears during auto maximum density adjust
ment, clean the TSCB ( toner control sensor
board), check its installation state, and retry the
auto maximum density adjustment.
<1> Error 1:
The Dmax sensor dirt correction has been
corrected 10 or more times, but it does not
converge.
<2> Error 2:
Maximum density adjustment is not
complete when the developing sleeve
rotation speed reaches the specified value.
<3> Error 3:
No signal is output from the Dmax sensr. No
control patch is output.
Operation
key.
key to re-
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