SBC PWB Assembly, ESS / Main Board (HI speed version Good Used 604K84731) for Xerox® WC 7845 / 7855

For Xerox® models: (WorkCentre) WC-7845, 7855

SBC PWB, High speed version (Single Board Controller / ESS / Main Board with HDD and SD Card) Refurbished - 604K84731 

If the SBC is bad on a machine, we are left with few choices other than a brand new SBC board with a new SIM card (impossible to obtain a SIM card) or replace the entire module all at one time to avoid serial number mismatches, etc.  It needs to have the HDD, SD Card and Memory DIMM all from another machine.  Keep in mind this means the Serial Number and copy count will change to the donor machine that the unit was removed from.  As an entire unit, this will solve any SBC problem... but also you should be prepared to reload the firmware from the included backup USB stick.