Minolta Di551 Service Manual page 349

ADJUSTMENT
2. Auto maximum
(Dmax adjustment)
Automatically adjusting the 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 and
developer is in the developing unit.
Step
Enter the 36 mode.
1
[Adjustment mode menu Screen]
2
Press " Process adjustment".
1
[Process adjustment mode menu
Screen]
3
Press " Drum peculiarity adjustment".
2
[Drum peculiarity adjustment mode
menu Screen]
4
Press " Auto maximum density adj.".
2
[Auto maximum density adjustment
Screen]
Press the
Start
5
The maximum density (Dmax) is adjusted
automatically.
Adjustment completes in about 15 seconds
and an complete message is displayed.
Press the
RETURN
6
Drum peculiarity adjustment mode menu
Screen.
Reference:
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.
<2> Error 2: Maximum density adjustment is
not complete when the number of rotation
of developing sleeve reaches the speci-
fied value.
<3> Error 3: No signal is output from the Dmax
sensor. No control patch is output.
density adjustment
Operation
key.
key to return to the
3. Auto dot diameter adjustment
Automatically adjusting the dot diameter.
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 and
developer is in the developing unit.
Auto maximum density adjust-
ment must have been completed.
Step
1 Enter the 36 mode.
[Adjustment mode menu Screen]
2
Press "
1
[Process adjustment mode menu
Screen]
3
Press "
2
[Drum peculiarity adjustment mode
menu Screen]
4
Press "
3
[Auto dot diameter adjustment Screen]
Press the
5
The dot diameter is adjusted automatically.
Adjustment completes in about 10 seconds
and a complete message is displayed.
Press the
6
Drum peculiarity adjustment mode menu
Screen.
Reference:
If either of the following error messages
appears during auto dot diameter adjustment,
clean the TSCB (toner control sensor board),
check its installation state, and retry the auto
dot diameter adjustment.
<1> Error 1: The γ sensor dirt correction has
been corrected.
<2> Error 2: Auto dot diameter adjustment has
ended with an abnormal value.
2-52
Operation
Process adjustment".
Drum peculiarity adjustment".
Auto dot diameter adjustment".
key.
Start
key to return to the
RETURN