Epson AcuLaser C8500 Service Manual page 479

EPSON AcuLaser C8500
FIP-3.9 Wrinkles FIP-3.9 Wrinkles FIP-3.9 Wrinkles FIP-3.9 Wrinkles
Description / initial check
Wrinkles
Paper becomes wrinkled when printing.
*Initial check
Use of parts of incorrect specifications, improper mounting, damage,
distortion, dirt, adherence of foreign matter?
*Main parts to check
MAIN FUSER ASSY, HEAT ROLL, PRESSURE ROLL, MCU PWB, DRUM
CARTRIDGE,
TURN ROLL ASSY, FEED ROLL ASSY, Paper cassette
Ite
Check
m
Paper dampness
1
No longer occurs when replaced with
new paper?
Faulty HEAT ROLL/PRESSURE ROLL
Is the HEAT ROLL/PRESSURE ROLL
2
damaged? Is there dirt or foreign
matter adhering to the HEAT ROLL/
PRESSURE ROLL?
Skew
3
Is paper being fed at an angle?
Paper transport route problem
4
Are there burrs, foreign matter or dirt
in the paper transport route?
Paper roll problem
Is there foreign matter/dirt on the
5
paper transport rolls? Are they
distorted or not functioning properly?
Troubleshooting
Treatment (when there is a
problem)
Replace paper. (The user
should keep paper in a
place where there is not
much humidity.)
Replace or clean the HEAT
ROLL/PRESSURE ROLL.
Check "Skew."
Clean/replace concerned
part(s).
Clean/replace concerned
part(s).
Picture Quality FIP
FIP-3.10 Unsatisfactory Fixing FIP-3.10 Unsatisfactory Fixing FIP-3.10 Unsatisfactory Fixing FIP-3.10 Unsatisfactory Fixing
Description / initial check
Unsatisfactory Fixing
When the image can be easily rubbed off with your hand.
*Initial check
Use of parts of incorrect specifications, improper mounting, damage,
distortion, dirt, adherence of foreign matter?
*Main parts to check
TEMP. SENSOR ASSY, MAIN FUSER ASSY, HEAT ROLL, PRESSURE ROLL,
MCU PWB
Ite
Check
m
Paper dampness
1
No longer occurs when replaced with
new paper?
Dirty TEMP. SENSOR ASSY
2
Is the surface of the TEMP. SENSOR
ASSY dirty?
Faulty HEAT ROLL/PRESSURE ROLL
Is the HEAT ROLL/PRESSURE ROLL
3
damaged? Is there dirt or foreign matter
adhering to the HEAT ROLL/PRESSURE
ROLL?
Faulty MAIN FUSER AASSY
4
Is pressure reliably applied between the
HEAT ROLL and PRESSURE ROLL?
Revision C
Treatment (when there is a
problem)
Replace paper. (The user
should keep paper in a place
where there is not much
humidity.)
Clean/replace the TEMP.
SENSOR ASSY.
Replace or clean the HEAT
ROLL/PRESSURE ROLL.
Perform Adjustment 1.1.
Replace MAIN FUSER ASSY.
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