Skip to Content.
Sympa Menu

baslinux - Re: [BL] postscript network printers

baslinux AT lists.ibiblio.org

Subject: Baslinux mailing list

List archive

Chronological Thread  
  • From: sindi keesan <keesan AT sdf.lonestar.org>
  • To: baslinux AT lists.ibiblio.org
  • Subject: Re: [BL] postscript network printers
  • Date: Fri, 9 Dec 2005 17:16:52 +0000 (UTC)

QMS finally called back while I was here and explained that the flash rom
(eeprom?) on the 'controller' (motherboard) is bad ('image checksum
error') and no, we can't solder in a new one with a soldering iron, but I
can buy a replacement controller. They named two wholesalers.

Ahhhh... this explains much. Though, I would bet that you could
replace it with a sufficiently skilled touch. However, you'd probably
need to find another printer of the same model first, from which you
could download the contents of the flash, to program the new one before
soldering it into place.

They implied that it could not be soldered by hand. But my partner fixed
three dead motherboards by replacing capacitors and two of them still
work. I thought the rom (is this the CMOS?) is usually socketed.

It might be socketed (EPROM & EEPROM often are), but if it's plain ROM
or flash, then most likely, it's surface-mount soldered, which can be

They said it was flash rom. The only two things on the board which don't
appear to be surface soldered are the lithium battery and a VALOR FL1012
which has something to do with ethernet.

Would a dead lithium battery also produce an image checksum error?

What would the flash ROM look like? These other chips look connected by
metallic spiderweb.
[SNIP]

Pretty much like any other plastic chip package, unfortunately. I'd
suggest that it's more likely to be one of the larger packages. You
may need to start checking part numbers against Google, if you're
serious about replacing it.

Thanks, that is how I identified the ethernet controller chip that is not soldered. I wonder if QMS would provide software to flash it.

Anthony Albert




Archive powered by MHonArc 2.6.24.

Top of Page