Question about Samsung SCX 4521F All-In-One Laser Printer
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Posted on Jan 02, 2017
SOURCE: Double page copies and CRU Error
CRU stands for "Current Use" and it appears on the System Data List as part of the page counters. The System Data List can be printed through the "Report" menu. Your unit is rather old and the fuser unit for it is intended to last 60,000 pages, although It can also be damaged by power failures. The part number for your fuser is JC96-01621A. This part number might have changed, but the expected price for it is around $99.00 to $129.00. Good luck.
Posted on Oct 02, 2007
SOURCE: CRU Fuse error
The CRU is a customer replaceable unit such as toner and drum. New ones have fuses that tell the machine that it's new. When they are installed for the first time, the fuse blows and resets the counter.
Posted on Jul 20, 2009
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