Avision AV50F (FF-0803S) - Manual (Page 99)

7.2 Cleaning the rollers and ADF pad
From time to time the pad assembly and feeding rollers may
become contaminated with ink, toner particles or paper dust.
In this case the scanner may not feed documents smoothly. If
this occurs, please clean the rollers and ADF pad.
To clean the feeding rollers,
1.
Pull the release knob to open the front door.
2.
Clean the feeding roller by using a soft, lint-free cloth wet
with some isopropyl alcohol. (95%). While cleaning the
rollers, avoid touching the sensor arm.
7-3