EPSON AcuLaser C1100 Revision B
TROUBLESHOOTING FIP according to the printer message 186
22 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 [23].
23
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.
24
24 VDC power supply check to P/H MOTOR
The voltage of P409-6 ↔ P409-5 on PWBA
MCU is 24 VDC?
Go to Step [25] . Go to Step [27].
25 Continuity check of HARNESS-ASSY P/H1
Disconnect the P/J409 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J409-1 ↔ P604-6
J409-2 ↔ P604-5
J409-3 ↔ P604-4
J409-4 ↔ P604-3
J409-5 ↔ P604-2
J409-6 ↔ P604-1
Go to Step [26] . Replace
HARNESS-
ASSY P/H1.
26 Check after replacement of MOTOR-PH
Replace MOTOR-PH. (p.337)
Does the error recur when a test print is made?
Replace PWBA
MCU. (p.404) End of
procedure
27
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 [28].
Step Check Yes No
28
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.
29 Continuity check of HARNESS-ASSY P/H1
Disconnect the P/J408 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J408-1 ↔ J603-12
J408-2 ↔ J603-11
Go to Step [30]. Replace
HARNESS-
ASSY P/H1.
30 Continuity check of HARNESS-ASSY P/H2
Disconnect P/J603.
Do all of the wiring below have normal
continuity?
P603-1 ↔ P202-2
P603-2 ↔ P202-1
Go to Step [31]. Replace
HARNESS-
ASSY P/H2.
31 Check of resistance value of CLUTCH
ASSY PRE REGI
Disconnect P/J202.
The winding resistance between the terminals
of CLUTCH ASSY PRE REGI is 144Ω ±
10% (20°C)?
Go to Step [27]. Replace
CLUTCH
ASSY PRE
REGI. (p.338)
Step Check Yes No