Panasonic UF-490 - Manual (Page 106)

Troubleshooting
106
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