Epson SEPG04002 32 , 36, 40, 37, 33 , 35, 34 , 38 , 39

EPSON AcuLaser C1100 Revision B
TROUBLESHOOTING FIP according to the printer message 177
32 Continuity check of HARNESS ASSY
FUSER SENS and HARNESS ASSY
FUSER in FUSER ASSY
Allow FUSER ASSY to cool down
before performing work.
Remove FUSER ASSY. (p.388)
Disconnect P/J619 and P/J110 in FUSER
ASSY.
Do all of the wiring below have normal
continuity?
P619-1 ↔ J110-3
P619-2 ↔ J110-2
P619-3 ↔ J110-1
J619-3 ↔ P614A-7
J619-2 ↔ P614A-8
J619-1 ↔ P614A-9
Replace EXIT
SENSOR. Replace FUSER ASSY. (p.388)
33 Shape and operation check of FUSER
ASSY parts
Allow FUSER ASSY to cool down
before performing work.
Remove FUSER ASSY. (p.388)
Are the gears, FUSER ROLL, EXIT ROLL,
PINCH ROLL and other parts in FUSER
ASSY attached correctly?
Also, do these parts rotate smoothly without
any dirt or damage?
Turn by hand to check.
Go to Step [34] . Replace FUSER
ASSY. (p.388)
34 24 VDC power supply check to MOT ASSY
FSR (Fuser Motor)
The voltage of P404-6 ↔ P404-5 on PWBA
MCU is 24 VDC?
Go to Step [35] . Go to Step [36].
35
Check after replacement of MOT ASSY FSR
Replace MOT ASSY FSR. (p.395)
Does the error recur when the power is turned
ON?
Replace PWBA
MCU. (p.404) End of procedure
Step Check Yes No
WARNING
WARNING
36
24 VDC power supply check to PWBA MCU
The voltage of P410-5/6 ↔ P410-7/8 on
PWBA MCU is 24 VDC?
Replace PWBA
MCU. (p.404) Go to Step [37].
37
Continuity check of HARNESS ASSY MAIN
Disconnect P/J410 from PWBA MCU and P/
J502 from LV/HVPS.
Do all of the wiring below have normal
continuity?
J410-5 ↔ J502-5
J410-6 ↔ J502-6
J410-7 ↔ J502-7
J410-8 ↔ J502-8
Replace LV/
HVPS. (p.407) Repair broken or shorted part.
38 Continuity check of HARNESS ASSY
MCU C/L
Allow FUSER ASSY to cool down
before performing work.
Remove FUSER ASSY. (p.388)
Disconnect the P/J417 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J417-6 ↔ J614A-7
J417-7 ↔ J614A-6
Go to Step [39]. Repair broken
or shorted part.
39 5 VDC power supply check to PWBA MCU
The voltage of P410-3 ↔ P410-4 on PWBA
MCU is 5 VDC?
Replace PWBA
MCU. (p.404) Go to Step [40].
40
Continuity check of HARNESS ASSY MAIN
Disconnect P/J410 from PWBA MCU and P/
J502 from LV/HVPS.
Do all of the wiring below have normal
continuity?
J410-3 ↔ J502-3
J410-4 ↔ J502-4
Replace LV/
HVPS. (p.407) Repair broken or shorted part.
Step Check Yes No
WARNING