Xpress M2825ND Not connecting via USB
Hi everyone and Thanks for your replys.
I have been working in a printer that does not connect via USB ports. The model in question is in the title of this thread. My custumer reported me that it was working fine for some 6 moth but all of a sudden it desapeared from his Windows' Devices & Printers.
During my own tests I have been using different USB cables that work fine with other devices. Also, I've tested it with different computers (4 to be precise) and each one of 'em are running different Windows versions (ranging from XP, Vista, Win 7 and 8.1). Its logic board does not show any damage, fuse are tested ok, capacitors look fine.
One thing that I noticed this printer is both Ethernet and USB and both ports are on the same board (circuit), but the ethernet card's LEDs are always on, no blinking or turning off, even when there's none ethernet cable connected.
Does anyone have a clue or have run into the same problem with this printer model?
Thanks.
1 
1件のコメント
Hi @airtide ,
Don't know your printer but here is a link to the service manual for the printer.
Looking at the manual. I was wondering whether there might be a 'corrupted firmware' problem with the printer as both the USB and Ethernet seem to go to the control board,(p.5-1).
Here is a link to the downloads for the printer including the firmware file.
Perhaps you could try to reload the firmware to see if this resolves the problem.
Just a thought.
jayeff さんによる