Dell 2135cn Service Manual page 220

Tray is recommended for paper feeding because sheets fed via SSF is prone to skew
depending on how the sheet is placed on SSF.
Checking the error mode
Does the skew occur when copying?
Checking the error mode
Does the error occur when feeding the
original at the ADF?
Checking the original
Does the original meet the ADF spec.?
Checking the ADF Guides setting
Reseat the ADF Guides.
Does the error still occur when copying?
Checking the ADF Feed Roller and the
Separator Pad
Are there any damages or foreign
substances on the Roller and the Pad?
Replace the KIT ADF
ROLL and SEPARATOR
PAD.
Version 2 2008.03.31
No
Yes
No
Yes
Checking the original setting
Is the original set to the platen glass
correctly?
No
Yes
No
Yes
No
Yes
A
Yes
Replace the KIT IIT ASSY
SUB.
Use the platen mode or
change the paper type.
END
Replace the ADF ASSY.
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Chapter 1 Troubleshooting
No
Reseat the original.