EPSON AcuLaser C1100 Revision B

TROUBLESHOOTING FIP according to the printer message 224

FIP-66

Panel Message
F Open
Possible parts that caused the error
Troubleshooting

CHUTE ASSY-FSR SWITCH 2BTR COVER

HARNESS ASSY ADC HARNESS ASSY 2BTR SW

PWBA MCU LV/HVPS
Step Check Yes No
1Shape check of CHUTE ASSY-FSR
Is the actuator of CHUTE ASSY-FSR that
presses SWITCH 2BTR COVER damaged?
Replace
CHUTE ASSY-
FSR. (p.341)
Go to Step [2].
2
Operation check of SWITCH 2BTR COVER
Disconnect the P/J418 from PWBA MCU.
Is there continuity on J418-7 ↔ J418-8 when
SWITCH 2BTR COVER is pressed, and does
the continuity stop when the switch is
released?
Go to Step [5]. Go to Step [3].
3Continuity check of HARNESS ASSY ADC
Disconnect the P/J418 from the PWBA MCU.
Do all of the wiring below have normal
continuity?
J418-7 ↔ J621-2
J418-8 ↔ J621-1
Go to Step [4]. Replace
HARNESS
ASSY ADC.
Actuator
4Continuity check of HARNESS ASSY
2BTR SW
Disconnect the P/J418 from the PWBA MCU.
Do all of the wiring below have normal
continuity?
P621-1 ↔ J113-2
P621-2 ↔ J113-1
Replace
SWITCH 2BTR
COVER.
(p.352)
Replace
HARNESS
ASSY 2BTR
SW.
5Power supply check to PWBA MCU
Is the specified DC voltage being supplied to
the following terminals on PWBA MCU?
P410-1 ↔ P410-2: 3. 3 VDC
P410-3 ↔ P410-4: 5 VDC
P410-5/6 ↔ P410-7/8: 24 VDC
Replace PWBA
MCU. (p.404) Go to Step [6].
6
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?
J410-1 ↔ J502-1
J410-2 ↔ J502-2
J410-3 ↔ J502-3
J410-4 ↔ J502-4
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.
Step Check Yes No