Panasonic UF-4100 - Manual (Page 105)

Troubleshooting
105
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If you find toner on the back of the recording paper, the printer roller in the Fuser unit is probably dirty.
Cleaning the Printer Roller
To clean the rollers
1 MAINTENANCE(1-3)
2
The machine will print out 3 Cleaning Charts.
Then, return to standby.
* PRINTING *
3 Load the Cleaning Charts into the Paper Tray face down.
4
MAINTENANCE(1-3)
5
The Machine will feed out the charts and clean the printer
roller.
* CLEANING *
7 8
1 1
HOW TO LOAD THE CLEANING CHARTS
1.REMOVE THE PAPER TRAY COVER
2.SET THESE 3 CLEANING CHARTS IN THE PAPER TRAY FACE DOWN
3.RE-INSTALL THE PAPER TRAY COVER
4.PRESS [FUNCTION][7][8][SET][1][SET][2]
TO START CLEANING
5.DISPOSE OF THE CLEANING CHARTS
*** SET THIS END TOWARDS THE BOTTOM OF PAPER TRAY, FACE DOWN ***
7 8
1 2