Konica Minolta 7085/FORCE 85 Service Manual page 630

ERROR CODE LIST
Warning
3
Classification
code
Wire F21-01
cleaning
abnormality
F21-02
MODEL
7075/7085
SERVICE HANDBOOK
Causes
• When SW1 (main) has been ON
and PS41 (charging wire cleaning
pad HP) has been OFF, PS41 is not
turned ON within 35 seconds of
home position search operation
(return) started by turning ON of M23
(charger cleaning). At this time, an
abnormal detection signal (blown
fuse) is not detected.
• PS41 is not turned OFF within
specified time after start of reversal
operation (return). At this time, an
abnormal detection signal (blown
fuse) is not detected.
• Check on excess over M23
operation time limit. PS42 (charging
wire cleaning pad limit) is not turned
ON within specified time after
detection of turning OFF of PS41
(charging wire cleaning pad HP) at
the start of reversal operation
(return), or PS41 is not turned ON
within specified time after turning ON
of PS42. At this time, an abnormal
detection signal (blown fuse) is not
detected.
• Check on blown fuse of M23 in
PRCB. When SW1 (main) has been
ON and PS41 (charging wire
cleaning pad HP) has been OFF,
PS41 is not turned ON within
specified time of home position
search operation (return) started by
turning ON of M23. At this time, an
abnormal detection signal (blown
fuse) is detected.
• PS41 is not turned OFF within
specified time after start of reversal
operation (return). At this time, an
abnormal detection signal (blown
fuse) is detected.
MANUAL REVISED EDITION
Operation in case of
warning occurrence
The machine stops
immediately and RL1
(main) is turned OFF.
DATE
5 - 16
Jan. 2002
3
Estimated abnormal
parts
M23 (charger cleaning)
DCDB (DC drive board)
PRCB (printer control board)
PS41 (charging wire
cleaning pad HP)
PS42 (charging wire
cleaning pad limit)
Breaking of harness
Connector
connection failure
PAGE METHOD
5-16 REPLACEMENT