Epson AcuLaser C8500 Service Manual page 418

EPSON AcuLaser C8500
FIP-1.36 EXIT UPPER ASSY Open FIP-1.36 EXIT UPPER ASSY Open FIP-1.36 EXIT UPPER ASSY Open FIP-1.36 EXIT UPPER ASSY Open
Step
*Initial setting
Use of parts of non-EPSON specifications, improper mounting, damage, distortion, dirt,
adherence of foreign matter?
1
*Main parts to check
FUSER ASSY, MAIN HARNESS ASSY, MCU PWB
*Engine and controller division check
2
Can a test print (single sheet / consecutive printing, about 10 sheets each) be performed
normally with the engine alone?
*EXIT CHUTE SWITCH push-in check
Is the operation for the actuator of the
3
When the EXIT UPPER ASSY is closed, turn on the EXIT UPPER SWITCH .
When the EXIT UPPER ASSY is opened, turn off the EXIT UPPER SWITCH.
*EXIT CHUTE SWITCH check
4 Is the EXIT CHUTE SWITCH functioning properly?
• By using the DIAG tool, check by the Digital Input Test device code "20".
*EXIT CHUTE SWITCH power check
5
Is the voltage between P17-10PIN <=> P17-11PIN 5VDC ?
*EXIT CHUTE SWITCH signal check
Is the voltage between P17-10PIN <=> P17-11PIN as follows?
6
When the
When the
*MAIN HARNESS ASSY continuity check
7
Is the a proper continuity between J17 <=> J161?
Troubleshooting
Check
EXIT UPPER ASSY
is closed, the value is 0VDC.
EXIT UPPER
is opened, the value is 5VDC.
EXIT UPPER
Level 1 FIP (Fault Isolation Procedure)
is as follows?
Treatment
Yes No
Replace and remount
Go to step 2.
the concerned part(s).
Printer controller check
(If an error still occurs
Go to step 3.
after replacing, go to
step 3.)
With tool:
Go to step 4.
Replace the faulty
Without tool:
part(s).
Go to step 5.
Replace the MCU
Go to step 5.
PWB.
Go to step 6. Go to FIP-2.1
Replace the MCU
Go to step 7.
PWB.
Replace the EXIT Replace the MAIN
CHUTE SWITCH. HARNESS ASSY.
Revision C
5-66