Epson AcuLaser C8500, Service Manual

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EPSON AcuLaser C8500 Revision C
Troubleshooting Level 1 FIP (Fault Isolation Procedure) 5-67
FIP-1.37 TURN CHUTE COVER Open FIP-1.37 TURN CHUTE COVER Open FIP-1.37 TURN CHUTE COVER Open FIP-1.37 TURN CHUTE COVER Open
Step Check
Treatment
Yes No
1
*Initial setting
Use of parts of non-EPSON specifications, improper mounting, damage, distortion, dirt,
adherence of foreign matter?
*Main parts to check
TURN CHUTE SWITCH, TURN CHUTE HARNESS
Replace and remount
the concerned part(s).
Go to step 2.
2
*Engine and controller division check
Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed
normally with the engine alone?
Printer controller check
(If an error still occurs
after replacing, go to
step 3.)
Go to step 3.
3
*TURN CHUTE SWITCH push-in check
Is the operation for the actuator of the TURN CHUTE COVER is as follows?
„
When the
TURN CHUTE COVER
is closed, turn on the
TURN CHUTE SWITCH
.
„
When the
TURN CHUTE COVER
is opened, turn off the
TURN CHUTE SWITCH
.
„
With tool:
Go to step 4.
„
Without tool:
Go to step 5.
Replace the faulty
part(s).
4
*TURN CHUTE SWITCH check
Is the TURN CHUTE SWITCH functioning properly?
• By using the DIAG tool, check by the Digital Input Test device code “84”.
Replace the MCU PWB. Go to step 5.
5
*TURN CHUTE SWITCH power check
Is the voltage between P109-2PIN <=> P109-3PIN 5VDC ?
Go to step 6. Go to FIP-2.1
6
*TURN CHUTE HARNESS continuity check
Is there a proper continuity between J103 <=> J103A?
Replace the TURN
CHUTE SWITCH. Replace the TURN
CHUTE HARNESS.