Epson AcuLaser C2900N, Service Manual

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Chapter 1 Troubleshooting
Epson AcuLaser C2900N
Revision B
Confidential
FIP-1.P14 Banding/Horizontal band cross out
Possible causative parts
- ROS ASSY (PL4.1.1)
- DRUM CARTRIDGE (PL4.1.21)
- TRANSFER ASSY (PL6.1.7)
- PWBA HVPS (PL4.1.19)
Before commencing troubleshooting, check the paper transfer path. Make sure there is no foreign
materials on the transfer path, such as staples, paper clips, scraps of paper and so on.
Step Check
Remedy
Yes No
1
Checking the Print.
Checked by [Test-Print] - [Contamination check] in
diagnosis.
Is the image printed correctly?
Printing data is
incorrect, then
check the printing
data which the
problem
generated.
Go to step 2
2
Checking the paper.
Is the installed paper with a new and dry one?
or does the paper satisfy the specification?
Go to step 3.
Replace the paper
with a new and dry
one. or Change
the paper to the
one that satisfies
the specification.
3
Checking for foreign objects in the paper transfer path.
Remove any foreign objects in the paper transfer path
between the TRANSFER ASSY and the fuser unit.
Does the printout have Banding/Horizontal band cross out?
Go to step 4. End of work.
4
Checking the defective parts.
Print the [Pitch Configuration Chart] in [Chart Print] in
[Diagnosis] tab of [Tool Box].
When the vertical stripes of periodicity are observed, check
the defective parts by comparing the printed vertical stripes
with the Pitch Chart.
Are there any vertical stripes matching the chart?
Replace the
corresponding
parts.
Go to step 5.
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