Question about Xerox Phaser 7750DN Laser Printer
I have a Xerox 7750 Color Printer (Tektronix Phaser 7750) and the machine has a failure error code of 7-402. I tried to get it running and it keeps giving the same code after rebooting. Any ideas?
Error codes 7-401 to 7-404 are life end for the tray rollers. If no jamming probs then enter diags mode (Back and'i' buttons and switch on) scroll down to NVRAM access and select. find CRU counters and select, clear each tray counter and then exit.
Posted on Jun 08, 2009
Tray 2 rollers near end of life. Buy a new set of rollers 600K78460, and then reset the counter in the diags.
Some 7750's can't be reset, in which case you need to buy an Engine Controller Board 116-1811-00
Posted on Jul 31, 2009
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Posted on Jan 02, 2017
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