Xerox 5890 fuser chip going to 0

[ROGGER]

I have a workcentre 5890 and the fuser chip and the xerographic unit chip are going to 0 within 4,000 copies or prints.
We have already change the iot board, reset the machine, change the principal motor and upgrade the software
any idea where the problem is?

[shaikh.faiz]

I have same problem even drum chip goes to '0', even if the machine is in standby.
If any one have solution please help.
Thanks in advance.

[Exok]

One of my techs ran into this problem a while back. Many things were tried / replaced and ultimately, the thing that fixed it was replacing the Single Board Controller.

[shaikh.faiz]

Appreciate your reply, I will be very grateful if your could please tell me where the board is located.

[shaikh.faiz]

Brother can you please tell me where is the controller board located, thanks.

[SeniorTch]

go back side the machine see under the scanner position, remove a cover, loose a couple of thumbs screw and pull out a a housing card tray. pay attention to disconect a few conectors a tiny flat etc. good look. the big one is the SBC board.

[SeniorTch]

Pardom me
there are two tray housing card there , the upper is the IPS and memory card ,the lower is what you need to remove. you do not need to disconect the small flat cable.

[caffeinekid]

The Peugeot man is correct, but before replacing the SBC, I would try the SD card. Machine counters are stored there as well and replacing a corrupt SD card is cheaper than the whole SBC. But beware- there is a special process and sequence for retaining print counter and serial number. Maybe someone unfortunate enough to have to work on this model can detail it. I don't remember anymore.

[shaikh.faiz]

Thanks and appreciate both of you for the response, was waiting for this eagerly, I will check and update.

[umerfarooq]

go back side the machine see under the scanner position, remove a cover, loose a couple of thumbs screw and pull out a a housing card tray. pay attention to disconect a few conectors a tiny flat etc. good look. the big one is the SBC board.

plz send me the picture or video of sbc board xerox 5890