Epson AcuLaser C8500 Service Manual page 420

EPSON AcuLaser C8500
FIP-1.38 Cassette 1 Paper Remaining Warning FIP-1.38 Cassette 1 Paper Remaining Warning FIP-1.38 Cassette 1 Paper Remaining Warning FIP-1.38 Cassette 1 Paper Remaining Warning
Step
*Initial setting
Use of parts of non-EPSON specifications, improper mounting, damage, distortion, dirt,
adherence of foreign matter?
1
*Main parts to check
UNIVERSAL CASSETTE, BOTTOM PLATE ASSY
LOW PAPER SENSOR, FEEDER PWB, 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?
*UNIVERSAL CASSETTE check
3
Can the UNIVERSAL CASSETTE be mounted smoothly?
*BOTTOM PLATE ASSY check
4 Does the BOTTOM PLATE ASSY lift normally when the UNIVERSAL CASSETTE is pushed in?
• Remove the TURN IN CHUTE-3Tand check.
*LOW PAPER SENSOR mounting check
5
Is the LOW PAPER SENSOR properly mounted?
*LOW PAPER SENSOR check
6
Is the LOW PAPER SENSOR functioning properly?
*FEEDER PWB replacement check
7 Replace it with the properly functioning FEEDER PWB.
Does the problem still occurs ?
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.)
Replace the faulty
Go to step 4.
part(s).
Replace the faulty
Go to step 5.
part(s).
Remount the LOW
Go to step 6.
PAPER SENSOR
Go to step 7. Go to FIP-2.4
Replace the MCU
Problem solved.
PWB.
Revision C
5-68