Konica Minolta 7085/FORCE 85 Service Manual page 635

Warning
3
Classification
code
High voltage F28-01
power supply
abnormality
F28-02
F28-03
Process F28-04
abnormality
F29-01
F29-02
F29-03
F29-04
F29-05
F29-06
F29-07
MODEL
7075/7085
Causes
Charging leakage detection. The
charging ON/OFF operation has
been performed five consecutive
times since the charging abnormal
detection signal was detected at start
of charging.
Transfer leakage detection. The
transfer ON/OFF operation has been
performed five consecutive times since
the transfer trouble detection signal
was detected at start of transfer.
Separation leakage detection. The
separation ON/OFF operation has
been performed five consecutive
times since the separation trouble
detection signal was detected at start
of separation.
An HV2 (high voltage unit 2)
abnormal detection signal (blown
24V fuse) is detected.
Sensor dirt correction incompletion.
Dirt correction failure of the Dmax
sensor during maximum density
adjustment. If this trouble is detected
ten successive times, the error code
is displayed.
Dmax correction incompletion. The
rotation speed of the developing
sleeve reached the maximum value
during Dmax correction.
Dmax sensor output abnormality. The
control patch is not output during
Dmax correction.
(No output from the Dmax sensor)
Sensor dirt correction incompletion.
Dirt correction failure of the γ sensor
during γ adjustment. If E29-4 or E29-
7 is detected ten successive times,
the error code is displayed.
γ correction data error. The control
patch is not output during γ
correction.
(No output from the γ sensor)
γ correction data error. A recurrence
error occurred when carry out γ curve
for γ correction.
Sensor dirt correction incompletion.
Dirt correction failure of the γ sensor
during dot diameter adjustment. If
E29-4 or E29-7 is detected ten
successive times, the corresponding
error code is displayed.
MANUAL
SERVICE HANDBOOK
Operation in case of
warning occurrence
If there is a paper in
copying
when this trouble oc-
curs, the machine
stops after comple-
tion of copied paper
ejection. RL1 (main)
is
The machine stops
immediately and RL1
(main) is turned OFF.
Error code is not dis-
played on operation
panel. It is displayed only
on data collection, list
output, and KRDS. Main
body control is performed
using previous data.
The machine stops
immediately and RL1
(main) is turned OFF.
Error code is not dis-
played on operation
panel. It is displayed only
on data collection, list
output, and KRDS. Main
body control is performed
using previous data.
The machine stops
immediately and RL1
(main) is turned OFF.
REVISED EDITION
5 - 21
Jan. 2002
3
ERROR CODE LIST
Estimated abnormal
HV1 (high voltage unit1)
process Power supply
connecting point of
charging corona
unit
HV2 (high voltage unit 2)
turned OFF. Power supply
connecting point of
transfer/separation
corona unit
TCSB (toner control sensor board)
PRCB (printer control board)
HV2 (high voltage unit 2)
Power supply connecting
point of transfer/
separation corona unit
ADUSDB (ADU
stand drive board)
Breaking of harness
TCSB (toner control
sensor board)
PRCB (printer control board)
M3 (developing)
Write unit
ICB (image control board)
ICB IFB (ICB I/F board)
DATE PAGE
5-21 REPLACEMENT
parts
METHOD