Dell 2135cn Service Manual page 218

Checking the error mode
Does the background page
occur when copying?
Yes
Checking the original
Is the original color clean?
Yes
Checking the printing
Print the Windows test page after
printing the color photograph or
picture. (If the color photograph
or picture printing is impossible,
print the [4 Colors Configuration
Chart] in [Chart Print] in
[Diagnosis] tab of [Tool Box].)
Is there background (fog) during
printing?
Yes
Checking after reseating the PHD
ASSY
Reseat the PHD ASSY.
Is there background (fog) during
printing?
Yes
Checking after replacing the PHD
ASSY
Replace the PHD ASSY. (Refer
to Removal 3/ Replacement 51.)
Is the image printed correctly?
Yes
END
Version 3 2008.06.13
No
Checking the Grey background.
Print the Gradation page.
Is there grey background during
printing?
No
Change the original.
No
END
No
END
No
Replace the printer.
1 - 190
Chapter 1 Troubleshooting
No
Yes
Printing data is incorrect,
then check the printing
data which the problem
generated.