Printer Section: Blank Copy - Konica Minolta Di1611 Service Manual

Di1611/Di2011 FIELD SERVICE Ver.1.0 Mar. 2004
4.4.12

Printer Section: Blank copy

Step
1 Imaging Unit is installed correctly.
2 Connector between the Imaging Unit and copier is
dirty.
3 PH Shutter (located along the laser path between
the PH Unit and PC Drum) is not in correct position
or malfunctions.
4 Connectors PJ12A and PJ13A in PH unit come off
or lift.
5 Image Transfer Roller Assy is installed correctly.
6 Image transfer current contact is dirty, broken, or
bent.
7 Developing bias contact is dirty, broken, or bent.
8 High Voltage Unit (HV1) connectors is loose.
9 The following voltage is supplied from the Master
Board (PWB-A).
<Check procedure>
Check that there is 24 V developing across the
Master Board pin and GND when the Power Switch
is turned ON (during a copy cycle or a standby
state).
<Typical Faulty Images>
Check
3-53
TROUBLESHOOTING
4011T035AA
Result Action
NO • Reinstall.
YES • Clean.
YES • Correct or reinstall.
YES • Reconnect.
NO • Reinstall.
YES • Clean, correct, or
change.
YES • Clean, correct, or
change.
YES • Reconnect.
YES • Change IU.
• Change PH Unit.
• Change High Volt-
age Unit (HV1).
NO • Change Master
Board (PWB-A).