Canon imageCLASS MF4270 Reference Manual page 158

Before Using the
Machine 1
Document and Paper
2
Copying
3
Sending and
Receiving 4
Printing and
Scanning
5
Network
6
Remote UI
7
System Manager
Settings
8
Maintenance
9
Troubleshooting
10
Appendix
11
Table of Contents
Index
ADF
If your documents have black streaks or appear dirty after copying
them using the ADF, this may be caused by pencil lead rubbing off
the documents and onto the roller. Clean the ADF scanning area
and roller.
1.
Turn off the main power switch and disconnect
the power cord.
2.
Open the ADF cover.
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3.
Clean the rollers (A) inside the ADF with a cloth
dampened with water. Then wipe the area with a
soft, dry cloth.
Do not dampen the cloth too much, as this may tear the document
or damage the machine.
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