I have a Sharp AR-337 copier and it has this problem:The scanner locks up at the time its copying, sometimes it makes two copies OK and sometimes it locks up three or five times continuously, and the copier does not register any error code.I have checked the main charge and the TC corona and they are in good conditions.I have checked the scanner completely to see if it has any problem, and when i move it manually it moves without a problem.I also checked the scanner motor, the scanner driver PWB, the PCU PWB and all its connectors and harnesses. And everything is all right.And i have changed the scanner completely from another copier i have and the problem persists.If someone have had a problem like this, could you help me?Thanks.
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