Epson AcuLaser C1100 Service Manual page 210

EPSON AcuLaser C1100
FIP-53
Panel Message
Service Req E537
Possible parts that caused the error
FUSER ASSY
FFC-ASSY LV/MCU
PWBA FUSER CONT
HARNESS ASSY MAIN
Troubleshooting
Step Check
Check of FUSER ASSY attachment
1
Is the FUSER ASSY attached correctly to the
printer?
In particular, is the connector connected
firmly to the printer?
Is the connector latched normally?
Does the error recur when the power is
2
turned ON?
Check after replacement of the FUSER ASSY
3
Replace FUSER ASSY. (p.388)
Does the error recur when the power is turned
ON?
Continuity check of HARNESS ASSY
4
MCU C/L
W A R N I N G
Allow FUSER ASSY to cool down
before performing work.
Remove FUSER ASSY. (p.388)
Is the continuity normal between all terminals
of J614A ↔ J417 and J614 ↔ J3?
TROUBLESHOOTING
HARNESS ASSY MCU C/L
HARNESS ASSY AC
LV/HVPS
PWBA MCU
Yes No
Go to Step [3]. Re-attach, and
go to step [2].
Go to Step [3]. End of
procedure
Go to Step [4]. End of
procedure
Go to Step [5]. Replace
HARNESS
ASSY MCU
C/L.
FIP according to the printer message
Step Check
Continuity check of FFC-ASSY LV/MCU
5
Disconnect P/J401 from PWBA MCU and P/
J500 from LV/HVPS.
Do all of the wiring below have normal
continuity?
P401-21 ↔ J500-2
P401-22 ↔ J500-1
Continuity check of HARNESS ASSY AC
6
Disconnect P/J503 from LV/HVPS and P/J2
from PWBA FUSER CONT.
Do all of the wiring below have normal
continuity?
J503-5 ↔ J2-5
J503-6 ↔ J2-6
Check after replacement of PWBA FUSER
7
CONT
Replace PWBA FUSER CONT.
Does the error occur when the power is turned
ON?
Check after replacement of LV/HVPS
8
Replace LV/HVPS. (p.407)
Does the error occur when the power is turned
ON?
Continuity check of HARNESS ASSY MAIN
9
Disconnect P/J1 from PWBA FUSER CONT
and P/J410 from PWBA MCU.
Do all of the wiring below have normal
continuity?
P/J1-1 ↔ P/J410-10
P/J1-3 ↔ P/J410-9
Revision B
Yes
Go to Step [6]. Replace FFC-
ASSY LV/MCU.
Go to Step [7]. Replace
HARNESS
ASSY AC.
Go to Step [8]. End of
procedure
(p.410)
Go to Step [9]. End of
procedure
Replace PWBA Replace
MCU. (p.404) HARNESS
ASSY MAIN.
No
210