SHARP AR C250 Digital Color COPIER. SERVICE CODE H4 00.

the machine is detecting a low temerature in the fuser unit. a commen cause is the thermistor digs into the fuser roller and tears the outer skin and the roller. you can check by opening the front door slide out the main unit open the door on the left hand side and you should see two orange rollers. check if the upper roller has a line around it.