Epson AcuLaser C8500 Service Manual page 404

EPSON AcuLaser C8500
FIP-1.23 2ND BTR malfunction FIP-1.23 2ND BTR malfunction FIP-1.23 2ND BTR malfunction FIP-1.23 2ND BTR malfunction
Step
*Initial setting
Use of parts of non-EPSON specifications, improper mounting, damage, distortion, dirt, adherence
of foreign matter?
1
*Main parts to check
2ND BTR, BTR CAM SOLENOID, 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?
*Retract check
3 During the test printing, does the 2ND BTR ASSY retract ?
• Check the operation of the BTR CAM SOLENOID from the rear side.
*BTR CAM CLUTCH mounting check
4
Is the BTR CAM CLUTCH mounted properly?
*BTR CAM ASSY shape check
5
Is the BTR CAM ASSY bent or distorted?
*2ND BTR ASSY mounting check
6
Is the 2ND BTR ASSY mounted properly?
*TRANSFER ASSY mounting check
7
Is the TRANSFER ASSY mounted properly?
*MCU PWB replacement check
8 Replace the the MCU PWB.
Does the problem still occur?
*BTR CAM SOLENOID check
9 Is the BTR CAM SOLENOID functioning properly?
• By using the DIAG tool, check by the Digital Output Test device code "2E".
Troubleshooting
Check
Level 1 FIP (Fault Isolation Procedure)
Revision C
Treatment
Yes No
Replace and remount
the concerned Go to step 2.
part(s).
Printer controller
check (If an error still
occurs after Go to step 3.
replacing, go to step
3.)
With tool:
Go to step 9.
Go to step 4.
Without tool:
Go toFIP-2.24
Remount the BTR
Go to step 5.
CAM CLUTCH.
Remount the BTR
Go to step 6.
CAM CLUTCH.
Remount
Go to step 7.
the 2ND BTR ASSY.
Remount the
Got to step 8.
TRANSFER ASSY.
Go to FIP-2.35 Problem solved.
Replace the MCU
Go to FIP-2.24
PWB.
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