Service manual

ELECTRIC PARTS LIST
4-43
3 DIS./ASSEMBLY
4 ELECTRIC PARTS LIST
Main body
Fan abnor-
mality
F52-01 FM13 (power supply cooling) EM
signal was abnormal 2 seconds
after turning ON FM13. 2 seconds
after turning FM13 OFF and ON
again, the signal is still abnormal.
The machine stops
immediately. RL1
(main) is turned OFF.
FM13 (power supply cool-
ing)
DCPS (DC power supply
unit)
F52-02 The MAINFAN_EM signal was
abnormal 2 seconds after turning
ON FM1 (main body cooling /1). 2
seconds after turning OFF and ON
again, the signal is still abnormal.
FM1 (main body cooling /1)
PRCB (printer control
board)
Motor
abnormality
F53-01 5 seconds or later after turning ON
M4 (fixing), an abnormal
MAINM_EM signal has been
detected for 1 consecutive second.
M4 (fixing)
PRCB (printer control
board)
Operation
panel abnor-
mality
E56-02 Communication between the ICB
(image control board) and OB1
(operation board 1) does not start
within 30 seconds after SW2 (sub
power) turns ON.
Operation panel
does not display nor-
mally.
ICB (image control board)
OB1 (operation board 1)
RADF
Fan Abnor-
mality
F62-01 FM301 (original conveyance motor
cooling) EM signal was abnormal 2
seconds after turning ON FM301. 2
seconds after turning FM301 OFF
and ON again, an abnormal detec-
tion signal is detected.
The machine stops
immediately and RL1
(main) is turned OFF.
SCDB (scanner drive board)
FM301 (original convey-
ance motor cooling)
FNS
FNS
abnormality
E70-1 Communication error FNSCB (FNS control board)
Connector
E70-2 Start response error.
F77-1 The shift unit does not reach the
shift position or the HP within the
specified time.
FNSCB (FNS control board)
M702 (shift)
PS718 (shift HP)
F77-2 After M703 (tray up/down) starts
operation, PS702 (tray upper limit)
or PS707 (stapler paper exit upper
limit) does not turn ON within the
specified time.
FNSCB (FNS control board)
M703 (tray up/down)
PS702 (tray upper limit)
PS707 (stapler paper exit
upper limit)
Classification
Warning
Code
Cause Machine response
Estimated
abnormal parts