Avision AV50F (FF-0803S) - Manual (Page 97)

7. Care and Maintenance
7.1 Cleaning the Scanner Glass
Both strips of glass in the scanner should be cleaned
periodically. The two small strips of gray reflective material
should lightly dusted if debris is present.
To clean the strips of glass, follow these steps:
1. Pull the release knob to open the front door.
2. Clean the glass by using a soft and lint-free cloth wet with
some isopropyl alcohol. (95%).
7-1