Question about Sharp AR-5316 Advanced Digital Imager Copier
The most common cause of a U2 is the toner cartridge.
There is a small chip on the back of the toner cartridge that is not communicating with the main board.
Try removing and reseating the toner cartridge or replace the cardtidge.
The only other U2 issue comes only after relplacing the main board. If you have done that, then it is a Memory issue.
Posted on Mar 03, 2008
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