I would check to see if there is a portion of paper stuck somewhere. Sometimes just a corner of paper can mess the whole thing up. Be sure when removing stuck paper, you reassemble the whole sheet if anything tears. I once had the copy not work because there was a piece about the size of 2 quarters that was stuck in the rollers. Hardly big enough to see, but enough to mess up my printer.

Mine shows nothing unless it is plugged in, then it shows the battery full