Konica Minolta bizhub PRO 1050 Service Manual page 378

10. SERVICE MODE
10.4.2 Drum peculiarity adjustment
Make various adjustments related to image creation
to the drum.
Info HJG: Trommelbesonderheiten anpassen
A. Blade setting mode
Perform this adjustment when changing the cleaning
blade. In this mode, apply toner to the cleaning blade
and drum, to prevents damages to them.
Info HJG: nur bei Cleaningblade Wechsel
machen. Achtung, siehe untere Info !
NOTE
• Perform this only when changing the cleaning
blade. Otherwise, the cleaning blade special
parts counter is reset, thus making it impos-
sible to implement the auto blade change in
the right timing.
• Apply setting powder to the cleaning blade
and drum.
(1) Procedure
1.
Enter the service mode.
2.
"Service mode menu screen"
Press the [02 Process Adjustment] key.
3. A sub menu appears on the right side of the
screen.
Press the [02 Drum Peculiarity Adj.] key on the
sub menu.
4. "Drum peculiarity adjustment mode menu
screen"
Press the [01 Blade Setting Mode] key.
5.
"Blade setting mode screen"
Press the [Start] key. With toner applied, the
drum is cleaned with the cleaning blade. The
message of completion appears.
B. Auto drum potential adjustment
Measure the charging potential of drum, and adjust
automatically the developing bias value, charging
voltage and grid voltage.
(1) Procedure
1.
Enter the service mode.
2.
"Service mode menu screen"
Press the [02 Process Adjustment] key.
3. A sub menu appears on the right side of the
screen.
Press the [02 Drum Peculiarity Adj.] key on the
sub menu.
Info HJG:
Achtung, nur bei Cleaningblade Wechsel machen. Sonst wird beim Ausführen nur der
346
Zähler auf „0" gesetzt, aber das Cleaningblade bleibt in vorheriger Position.
Field Service Ver3.0 Nov.2006
4. "Drum peculiarity adjustment mode menu
screen"
Press the [02 Auto Drum Potential Adjustment]
key.
5. "Auto drum potential adjustment screen"
Press the [Start] key. After the automatic
adjustment, the message
appears.
NOTE
• When the following error messages appear,
check to see if the drum potential sensor
(DPS) is properly installed and cleaned. Con-
duct the adjustment again.
1) Error 1
In the 0V check of the DPS, voltage over
100V is detected 5 times or more.
2) Error 2
The drum potential after laser exposure is
detected to be over 350V, and it is deter-
mined that control patch detect signal is
not outputted.
3) Error 3
Drum potential has been corrected 10 or
more times, but it does not converge.
C. Auto maximum density adjustment
Automatically adjust maximum density of images.
Info HJG: Max. Kontrast - Dmax Sensor Justage
(1) Procedure
1.
Enter the service mode.
2.
"Service mode menu screen"
Press the [02 Process Adjustment] key.
3. A sub menu appears on the right side of the
screen.
Press the [02 Drum Peculiarity Adj.] key on the
sub menu.
4. "Drum peculiarity adjustment mode menu
screen"
Press the [03 Auto Maximum Density Adjust-
ment] key.
5. "Auto maximum density adjustment screen"
Press the [Start] key.
NOTE
• When the following error messages appear,
check to see if the toner control sensor board
(TCSB) is properly installed and cleaned.
Conduct the adjustment again.
of completion