Epson SEPG04002 12 , 13 , 21, 15 , 17 , 20

EPSON AcuLaser C1100 Revision B
TROUBLESHOOTING FIP according to the printer message 160
11
Continuity check of HARNESS ASSY MAIN
Disconnect P/J421 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J421-7 ↔ J608-4
J421-8 ↔ J608-3
J421-9 ↔ J608-2
Replace PWBA
MCU. (p.404) Repair broken or shorted part.
12 Operation check of ACTUATOR T/R
Does ACTUATOR T/R move smoothly
without any damage? Does it leave the sensing
area of Tray Path Sensor when there is paper?
Does it enter the sensing area wh en th er e is n o
paper?
Go to Step [13] . Replace
ACTUATOR
T/R.
(p.481)
13 Operation check of SENSOR T/R
The voltage of P437-15 ↔ P437-14 on
PWBA TRAY CONT is 0 VDC when
ACTUATOR T/R enters the sensing area of
SENSOR T/R, and is 5 VDC when it leaves
the sensing area?
Go to Step [22] . Go to Step [14].
14
5 VDC power supply check to SENSOR T/R
Remove COVER LEFT 500.
The voltage of P437-13 ↔ P437-14 on
PWBA TRAY 500 is 5 VDC?
Go to Step [15] . Go to Step [17].
15 Continuity check of HARNESS-ASSY
FEED MAIN
Disconnect P/J437 and P/J618 from PWBA
TRAY CONT.
Do all of the wiring below have normal
continuity?
J437-13 ↔ J618-3
J437-14 ↔ J618-2
J437-15 ↔ J618-1
Go to Step [16] . Replace
HARNESS-
ASSY FEED
MAIN.
Step Check Yes No
16
Continuity check of HARNESS ASSY FEED 3
Disconnect P/J618.
Do all of the wiring below have normal
continuity?
P618-4 ↔ J120-3
P618-5 ↔ J120-2
P618-6 ↔ J120-1
Replace
SENSOR
T/R. (p.482)
Repair broken
or shorted part.
17 5 VDC power supply check to PWBA
TRAY 500
The voltage of P435-6 ↔ P435-5 on PWBA
TRAY 500 is 5 VDC?
Go to Step [9]. Go to Step [18].
18
Continuity check of HARNESS-ASSY FEED 1
Disconnect P/J435 from PWBA TRAY
CONT.
Do all of the wiring below have normal
continuity?
J435-6 ↔ P608-5
J435-5 ↔ P608-6
Go to Step[19]. Replace
HARNESS-
ASSY FEED 1.
(p.462)
19
Continuity check of HARNESS ASSY MAIN
Disconnect P/J421 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J421-5 ↔ J608-6
J421-6 ↔ J608-5
Go to Step [20]. Repair broken
or shorted part.
20 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 [21].
21
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