Epson AcuLaser C8500 Service Manual page 441

EPSON AcuLaser C8500
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
*Initial setting
Use of parts of non-EPSON specifications, improper mounting, damage, distortion, dirt,
adherence of foreign matter?
1
*Main parts to check
REGI. SENSOR, EXIT LOWER ASSY, TOP EXIT SENSOR
EXIT-2 ROLL ASSY, P/H DRIVE 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?
3 Are you using curled paper or paper that tends to curl?
*EXIT LOWER ASSY check
4
Is there foreign matter in the paper route of the EXIT LOWER ASSY? Is there anything wrong
with parts?
*TOP EXIT SENSOR check
5 Is the TOP EXIT SENSOR functioning properly?
By using the DIAG tool, check by the Digital Input Test device code "09".
*EXIT-2 ROLL ASSY check
6
Is the EXIT-2 ROLL ASSY worn? Are there any foreign matters adhering to the EXIT-2 ROLL
ASSY?
*EXIT LOWER ASSY drive route check
7
Is there anything wrong with the drive rout of the EXIT LOWER ASSY? Are the gears faulty or
worn?
*P/H DRIVE ASSY check
8
Is the P/H DRIVE ASSY improperly mounted? Are the gears faulty?
Troubleshooting
Check
Level 2 FIP (Fault Isolation Procedure
Treatment
Yes No
Replace and remount
Go to step 2.
the concerned part(s).
Printer controller
check (If an error still
Go to step 3.
occurs after replacing,
go to step 3.)
Change to different
Go to step 4.
paper.
With tool:
Go to step 5.
Clean and replace the
Without tool: faulty part(s)
Go to FIP-2.29
Go to step 6. Go to FIP-2.29
Replace and clean the
Go to step 7.
EXIT-2 ROLL ASSY
Replace the faulty
Go to step 8.
part(s).
Replace and remount Replace the MCU
the P/H DRIVE ASSY. PWB.
Revision C
5-89