Epson AcuLaser C8500, Service Manual

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EPSON AcuLaser C8500 Revision C
Troubleshooting Level 2 FIP (Fault Isolation Procedure 5-89
FIP-2.9 Faulty MSI EDGE SENSOR FIP-2.9 Faulty MSI EDGE SENSOR FIP-2.9 Faulty MSI EDGE SENSOR FIP-2.9 Faulty MSI EDGE SENSOR
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
REGI. SENSOR, EXIT LOWER ASSY, TOP EXIT SENSOR
EXIT-2 ROLL ASSY, P/H DRIVE ASSY, MCU PWB
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 Are you using curled paper or paper that tends to curl?
Change to different
paper.
Go to step 4.
4
*EXIT LOWER ASSY check
Is there foreign matter in the paper route of the EXIT LOWER ASSY? Is there anything wrong
with parts?
„
With tool:
Go to step 5.
„
Without tool:
Go to FIP-2.29
Clean and replace the
faulty part(s)
5
*TOP EXIT SENSOR check
Is the TOP EXIT SENSOR functioning properly?
By using the DIAG tool, check by the Digital Input Test device code “09”.
Go to step 6. Go to FIP-2.29
6
*EXIT-2 ROLL ASSY check
Is the EXIT-2 ROLL ASSY worn? Are there any foreign matters adhering to the EXIT-2 ROLL
ASSY?
Replace and clean the
EXIT-2 ROLL ASSY
Go to step 7.
7
*EXIT LOWER ASSY drive route check
Is there anything wrong with the drive rout of the EXIT LOWER ASSY? Are the gears faulty or
worn?
Replace the faulty
part(s).
Go to step 8.
8
*P/H DRIVE ASSY check
Is the P/H DRIVE ASSY improperly mounted? Are the gears faulty?
Replace and remount
the P/H DRIVE ASSY. Replace the MCU
PWB.