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ERROR CODE LIST
Warning
Classification
code
Wire
F21-02
cleaning
abnormality
F21-03
F21-04
Causes
• PS42 (charging wire cleaning pad
limit) is not turned ON within 35
seconds 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 35 seconds after
turning ON of PS42. At this time, a
trouble detection signal (blown fuse)
is detected.
A motor lock signal is detected during
the cleaning pad moving from the
PS42 (charging wire cleaning pad
limit) side to the PS41 (charging wire
cleaning pad HP) side. After retry,
the fifth motor lock signal is detected.
• When SW1 (main switch) has been
ON and PS11 (transfer/separation
wire cleaning pad HP) has been OFF ,
PS11 is not turned ON within 40
seconds of home position search
operation (return) started by turning
ON of M18 (transfer/separation
cleaning). At this time, a trouble
detection signal (blown fuse) is not
detected.
• PS11 is not turned OFF within 15
seconds after star t of reversal
operation (return). At this time, a
trouble detection signal (blown fuse)
is not detected.
• PS12 (transfer/separation wire
cleaning pad limit) is not turned ON
within 40 seconds after detection of
tur ning OFF of PS11 (transfer/
separation wire cleaning pad HP) at
the star t of reversal operation
(return), or PS11 is not turned ON
within 40 seconds after turning ON
of PS12. At this time, a trouble
detection signal (blown fuse) is not
detected.
4 - 48
Operation in case of
Estimated abnormal
warning occurrence
The machine stops
M23 (charger cleaning)
immediately and RL1
DCDB (DC drive board)
(main) is turned OFF.
PRCB (printer
conrol board)
PS41 (charging wire
cleaning pad HP)
PS42 (charging wire
cleaning pad limit)
M23 (charger
cleaning)
DCDB (DC drive
board)
PRCB (printer
control board)
PS41 (charging
wire cleaning pad
HP)
PS42 (charging
wire cleaning pad
limit)
M18 (transfer/sepa-
ration cleaning)
ADUSDB (ADU
stand drive board)
PS12 (transfer/
separation wire
cleaning pad limit)
parts
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