Question about Sharp AR-5316 Advanced Digital Imager Copier

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Error Code U2-40 on Sharp FO-DC550 fax machine.

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  • Anonymous Jun 10, 2008

    SHARP FO DC 550

    U2-40 WHAT IS IT?

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2 Answers

U2-40

Posted on Sep 10, 2008

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  • 146 Answers

That is a CRUM communication error. The CRUM is a chip that resides on the toner cartridge that keeps track of the toner usage and resets when a new toner is installed. If you replaced the toner recently it may be corrupt. If you got a refurbidhed toner they may have reprogrammed the CRUM incorrectly. Power supply problems often cause this error so check your outlet to make sure it is withinn the proper voltage range and also that it is not on the same circuit as other devices. Get a "real" surge protector designed for office equipment such as a smartpower. Try changing toners and using genuine supplies.

Posted on Jun 04, 2008

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Posted on Jan 02, 2017

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