Dell 2135cn Service Manual page 422

Step
Checking the Platen Glass
Open the ADF and check the Platen Glass.
3
Are there any damages or foreign substances on the Platen
Glass?
Checking the contaminations on the paper transfer path
4
Are there any contaminations on the paper transfer path?
5 Is the image printed correctly?
Checking the defective parts
Print the [Pitch Configuration Chart] in [Chart Print] in
[Diagnosis] tab of [Tool Box].
6
Check the defective parts by comparing the printed spots
with Pitch Chart. (Refer to Chapter 4.1.)
Are there any spots matching the chart?
Checking the using paper
7
Does the using paper meet the specifications?
8 Is the image printed correctly?
Checking the belt surface of the TRANSFER ASSY
9 Are there any damages on the belt surface of the
TRANSFER ASSY?
Checking the TRANSFER ASSY for connection
Open the COVER ASSY FRONT.
Are four HV terminals on the TRANSFER ASSY, and four
springs on the frame (PL4.1.11, 12, 13 and 14) dirty and/or
deformed?
10
Version 1 2008.02.01
Check
1 - 394
Chapter 1 Troubleshooting
Remedy
Yes
Replace the IIT
ASSY SUB or
remove the
foreign Go to step 6.
substances.
(Removal 59/
Replacement 2)
Clean the
contaminations
with soft cloth or Go to step 6.
cotton swab, then
go to step 5.
End of work. Go to step 6.
Replace the
corresponding
parts
When the result
corresponds to the
[b-12 PHD] of the
pitch chart,
performing the
Go to step 7.
[PHD Refresh
Configuration
Check] of [Chart
Print] in
[Diagnosis] tab of
[Tool Box] may
improve image
quality.
Use the paper that
meets the
Go to step 9.
specifications,
then go to step 8.
End of work. Go to step 9.
Replace the
TRANSFER
ASSY. (Refer to Go to step 10.
Removal 48/
Replacement 12.)
Clean or replace
the TRANSFER
Go to step 11.
ASSY or
SPRING(s).
No