EPSON AcuLaser C1100 Revision B

TROUBLESHOOTING FIP according to the printer message 178

FIP-32

Panel Message
Check Transparency
Possible parts that caused the error
Troubleshooting

SENSOR OHP HARNESS-ASSY P/H1

HARNESS-ASSY P/H2 PWBA MCU
HARNESS ASSY MAIN LV/HVPS
Step Check Yes No
1Check of transparency setting
Does the transparency in use match the
NVRAM setting (which type of transparency
(with or without white margin) is enabled or
disabled.)
Go to Step [3]. Replace the
transparency in
use with a one
that matches the
NVRAM
settings, or
change the
NVRAM
setting and go to
[2].
2Does the error recur when a test print is
made? Go to Step[3]. End of
procedure
3Check of dirt and foreign bodies on surface
of SENSOR OHP
Open COVER-P/H.
Are there any dirt or foreign bodies on the
SENSOR surface?
Clean to remove
any dirt or
foreign bodies,
and go to step
[4].
Go to Step [5].
4Does the error recur when a test print is
made? Go to Step[5]. End of
procedure
5Operation check of SENSOR OHP
The voltage of P408-8 ↔ P408-7 on PWBA
MCU is 5 VDC when white paper is brought
to the sensor sensing area (transparency must
not be used), and becomes 0 VDC when paper
is removed?
Replace PWBA
MCU. (p.404) Go to Step [6].
6Power supply check to SENSOR OHP
Disconnect the P/J408 from PWBA MCU.
The voltage of P408-9 ↔ P408-7 on PWBA
MCU is 5 VDC?
Go to Step [7]. Go to Step [9].
7Continuity check of HARNESS-ASSY P/H1
Disconnect the P/J408 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J408-7 ↔ J603-6
J408-8 ↔ J603-5
J408-9 ↔ J603-4
Go to Step [8]. Replace
HARNESS-
ASSY P/H1.
8Continuity check of HARNESS-ASSY P/H2
Disconnect the P/J603 from PWBA MCU.
Do all of the wiring below have normal
continuity?
P603-7 ↔ J101-3
P603-8 ↔ J101-2
P603-9 ↔ J101-1
Replace
SENSOR OHP.
(p.334)
Replace
HARNESS-
ASSY P/H2.
95 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 [10].
10
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