Dell 2135cn Service Manual page 200

Checking the error mode
Does the blank line occur when
copying?
Yes
Checking the original
Is the original color clean?
Yes
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 ASSY.
Does the printout still have
vertical blank lines (white stripes
in the paper feed direction)?
Yes
Checking the belt surfaces of the
TRANSFER ASSY
Are there any damages on the
belt surface of the TRANSFER
ASSY?
Yes
Replace the TRANSFER ASSY.
(Refer to Removal 48/
Replacement 12.)
Version 3 2008.06.13
No
Checking the Vertical blank lines.
Print the contamination check
page.
Does the printout have vertical
blank lines (white stripes in the
paper feed direction)?
No
Change the original.
No
END
No
Replace the PHD ASSY. (Refer
to Removal 3/ Replacement 51.)
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Chapter 1 Troubleshooting
No
Yes
Check the print data which
the problem generated.