Epson AcuLaser CX11 Service Manual page 199

EPSON AcuLaser CX11/CX11F
Step Check
Continuity check of HARNESS ASSY MCU
10
C/L
Allow FUSER ASSY to cool down
W A R N I N G
before performing work.
Remove FUSER ASSY. (p.415)
Disconnect P/J417 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J417-6 ↔ J614A-7
J417-7 ↔ J614A-6
5 VDC power supply check to PWBA MCU
11
The voltage of P410-3 ↔ P410-4 on PWBA
MCU is 5 VDC?
Continuity check of HARNESS ASSY MAIN
12
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
Shape and operation check of FUSER ASSY
13
parts
Allow FUSER ASSY to cool down
W A R N I N G
before performing work.
Remove FUSER ASSY. (p.415)
Are the gears, Fuser Roll, Exit Roll, Pinch Roll
and other parts in FUSER ASSY attached
correctly?
Also, do these parts rotate smoothly without
any dirt or damage?
Turn by hand to check.
TROUBLESHOOTING
Yes No
Go to Step [11]. Repair broken or
shorted part.
Replace PWBA Go to Step [12].
MCU. (p.432)
Replace LV/ Repair broken or
HVPS. (p.435) shorted part.
Go to Step [14]. Replace FUSER
ASSY. (p.415)
Printer
Step Check
24 VDC power supply check to MOT ASSY
14
FSR (Fuser Motor)
The voltage of P404-6 ↔ P404-5 on PWBA
MCU is 24 VDC?
Check after replacement of MOT ASSY FSR
15
Replace MOT ASSY FSR. (p.422)
Does the error recur when a test print is made?
24 VDC power supply check to PWBA MCU
16
The voltage of P410-5/6 ↔ P410-7/8 on
PWBA MCU is 24 VDC?
Continuity check of HARNESS ASSY MAIN
17
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
Revision B
Yes No
Go to Step [15]. Go to Step [16].
Replace PWBA End of procedure
MCU. (p.432)
Replace PWBA Go to Step [17].
MCU. (p.432)
Replace LV/ Repair broken or
HVPS. (p.435) shorted part.
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