EPSON AcuLaser C1100 Revision B
TROUBLESHOOTING FIP according to the printer message 176
22 Continuity check of HARNESS ASSY
2BTR SENS
Disconnect P/J620 from HARNESS ASSY
2BTR SENS.
Do all of the wiring below have normal
continuity?
P620-1 ↔ J111-3
P620-2 ↔ J111-2
P620-3 ↔ J111-1
Replace
SENSOR
FUSER IN.
(p.344)
Replace
HARNESS
ASSY 2BTR
SENS.
23 Shape and operation check of CAM ASSY-
2ND
Does CAM ASSY-2ND move smoothly
without any damage, and does it enter the
sensor sensing area?
Go to Step [24] . Replace CAM
ASSY-2ND.
(p.350)
24 Operation check of SENSOR 2BTR
RETRACT
Remove 2ND BTR ASSY. (p.348)
The voltage of P418-6 ↔ P418-5 on PWBA
MCU is 0 VDC when CAM ASSY-2ND
enters the sensing area of SENSOR 2BTR
RETRACT, and is 5 VDC when it leaves the
sensing area?
Go to Step [27] . Go to Step [25].
25 5 VDC power supply check to SENSOR
2BTR RETRACT
Disconnect P/J418 from PWBA MCU.
The voltage of P418-4 ↔ P418-5 on PWBA
MCU is 5 VDC?
Go to Step [26] . Go to Step [39].
26 Continuity check of HARNESS ASSY ADC
Disconnect P/J418 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J418-4 ↔ J112-3
J418-5 ↔ J112-2
J418-6 ↔ J112-1
Replace
SENSOR 2BTR
RETRACT.
(p.356)
Replace
HARNESS
ASSY ADC.
Step Check Yes No
27
Continuity check of HARNESS ASSY MAIN
Disconnect the P/J403 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J403-1 ↔ J600-3
J403-2 ↔ J600-2
J403-3 ↔ J600-1
Go to Step [28]. Repair broken
or shorted part.
28 24 VDC power supply check to MOT ASSY
MICRO (2ND BTR Retract Motor)
The voltage of P403-3 ↔ P403-2 on PWBA
MCU is 24 VDC?
Go to Step [29]. Go to Step [36].
29 Check after replacement of MOT ASSY
MICRO
Replace MOT ASSY MICRO. (p.399)
Does the error recur when a test print is made?
Replace PWBA
MCU. (p.407) End of
procedure
30 Operation check of EXIT SENSOR in
FUSER ASSY
The voltage of P417-8 ↔ P417-7 on PWBA
MCU is 0 VDC when ACTUATOR enters the
sensing area of EXIT SENSOR, and is 5 VDC
when it leaves the sensing area?
Go to Step [33]. Go to Step [31].
31 5 VDC power supply check to EXIT
SENSOR in FUSER ASSY
Allow FUSER ASSY to cool down
before performing work.
Remove FUSER ASSY. (p.388)
The voltage of connector J614A-7 ↔ J614A-6
that connects FUSER ASSY on the printer is 5
VDC?
Go to Step [32]. Go to Step [38].
Step Check Yes No
WARNING