Epson AcuLaser C8500 Service Manual page 421

EPSON AcuLaser C8500
FIP-1.39 MSI Tray malfunction (Lift Up) FIP-1.39 MSI Tray malfunction (Lift Up) FIP-1.39 MSI Tray malfunction (Lift Up) FIP-1.39 MSI Tray malfunction (Lift Up)
Step
*Initial setting
Use of parts of non-EPSON specifications, improper mounting, damage, distortion, dirt,
adherence of foreign matter?
1
*Main parts to check
LIFT MOTOR ASSY, LEVEL SENSOR, 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?
*MSI HARNESS ASSY mounting check
3
Is the MSI HARNESS ASSY properly mounted?
*The confirmation of the body HARNESS
4
Is there a breakage or contact defect on HARNESS between the MCU PWB and the MSI ASSY?
*LIFT MOTOR ASSY check
5 Is the LIFT MOTOR ASSY functioning properly?
• By using the DIAG tool, check by the Digital Output Test device code "2D".
*LEVEL SENSOR check
6 Is the LEVEL SENSOR functioning properly?
• By using the DIAG tool, check by the Digital Input Test device code "2C".
Troubleshooting
Check
Level 1 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.)
Remount the
Go to step 4.
CONNECTOR.
Replace the
Go to step 5.
HARNESS.
Remount the LIFT
Go to step 6.
MOTOR ASSY.
Remount the MCU Remount the LIFT
PWB. MOTOR ASSY.
Revision C
5-69