Avision AV210D2+ (FF-1001H) - Manual (Page 97)

7.4 Replacing the ADF Roller
After scanning approximately 200,000 pages through the ADF,
the ADF roller may be worn out and you may experience
problems with document feeding. In this case, you may need
to replace a new ADF roller. For ordering the ADF roller, please
consult your nearest dealer and follow the procedure below to
replace it.
Disassembling Procedure
1. Press the ADF release button to open the ADF front cover
and also remove the ADF input tray.
2. Pull the roller cover to open it and press down the tab.
3. Move the tab to the left.
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