Service manual

ELECTRIC PARTS LIST
4-35
3 DIS./ASSEMBLY
4 ELECTRIC PARTS LIST
Main Unit
Process
abnormality
F29-01 Dirt correction failure of the Dmax
sensor during maximum density
adjustment. If this error is detected
10 successive times, the error code
is displayed.
The machine stops
immediately and
turns OFF RL1
(main).
TSCB (toner control sensor
board)
PRCB (printer control
board)
F29-03 Control patches are not output
while Dmax correction is in pro-
cess.
(No output from the Dmax sensor.)
No error code is dis-
played on the opera-
tion panel. The code
is registered in data
collection. Main body
control is performed
using previous data.
TSCB (toner control sensor
board)
PRCB (printer control
board)
F29-04 Dirt correction failure of the
γ
sen-
sor during
γ
adjustment. If this error
is detected 10 successive times,
the error code is displayed.
The machine stops
immediately and
turns OFF RL1
(main).
F29-05 Control patches are not output
while
γ
correction is in process.
(No output from the
γ
sensor.)
No error code is dis-
played on the opera-
tion panel. The code
is registered in data
collection. Main body
control is performed
using previous data.
F29-06 A recurrence error occurred when
carry out
γ
curve for
γ
correction.
F29-07 Dirt correction failure of the
γ
sen-
sor during dot diameter adjust-
ment. If this error is detected 10
successive times, the correspond-
ing error code is displayed.
The machine stops
immediately and
turns OFF RL1
(main).
F29-08 The dot diameter correction ended
with error value.
No error code is dis-
played on the opera-
tion panel. The code
is registered in data
collection. Main body
control is performed
using previous data.
TCSB (toner control sensor
board)
PRCB (printer control
board)
Fan abnor-
mality
F32-01 An error for SUC_EM signal is
detected when 2 seconds have
passed since FM3 (conveyance
suction) has turned ON. The error
does not clear after 2 seconds from
the OFF/ON operation.
The machine stops
immediately and
turns OFF RL1
(main).
FM3 (conveyance suction)
ADUDB (ADU drive board)
PRCB (printer control
board)
Classification
Warning
Code
Cause Machine response
Estimated
abnormal parts