Dell 2135cn Service Manual page 213

Checking the error mode
Does the spots occur when
copying?
Yes
Checking the original
Is the original color clean?
Yes
Checking the platen glass
Open the ADF and check the
platen glass
Are there any damages or foreign
substances on the platen glass?
Yes
Replace the IIT ASSY SUB
or remove the foreign
substances.
Version 3 2008.06.13
No
Checking the Spots.
Print the contamination check
page.
Are there toner spots during
printing?
No
Change the original.
No
Checking the defective parts
Print the [Pitch Configuration
Chart] of the [Chart Print ] of the
[Diagnosis] tab in [Tool Box].
Check the defective parts by
comparing the printed horizontal
band cross out with Pitch Chart.
(Refer to Chapter 4.1.)
Are there any horizontal band
cross out matching the chart?
Replace the corresponding parts.
When the result corresponds to
the [b-12 PHD] of the pitch chart,
performing the [PHD Refresh
Configuration Check] of [Chart
Print] in [Diagnosis] tab of [Tool
Box] may improve image quality.
1 - 185
Chapter 1 Troubleshooting
No
Printing data is incorrect,
Yes
then check the printing
data which the problem
generated.
Period(mm)
66.7
75.4/37.7
44.0/37.6
No
Yes
Replacement Parts
Fuser
PHD ASSY
Printer
A