Epson AcuLaser C8500 Service Manual page 417

EPSON AcuLaser C8500
FIP-1.35 FUSER ASSY Open FIP-1.35 FUSER ASSY Open FIP-1.35 FUSER ASSY Open FIP-1.35 FUSER 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?
*FUSER ASSY mounting check
3
Is the FUSER ASSY pushed in securely?
*FUSER ASSY mounting detection check
4
Is the detection of the FUSER ASSY mounting functioning properly?
*FUSER ASSY power supply check
5
Is the voltage 5VDC between P19-16PIN <=> P19-15PIN 5VDC ?
* MAIN P/H FRAME mounting signal check
Is the voltage between P19-16PIN <=> P19-15PIN as follows?
6
When the FUSER ASSY is closed, the value is 0VDC.
When the FUSER ASSY is opened, the value is 5VDC.
*MAIN HARNESS ASSY continuity check
7
Is there a proper continuity between J019 <=> P71?
Troubleshooting
Check
Level 1 FIP (Fault Isolation Procedure)
Treatment
Yes
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.)
Replace the faulty
Go to step 4
part(s).
Replace the MCU PWB. Go to step 5.
Go to step 6. Go to FIP-2.1
Go to step 7. Replace the MCU PWB.
Replace the FUSER Replace the MAIN
ASSY. HARNESS ASSY.
Revision C
No
5-65