On 03/02/2013 02:22 PM, Diane Bruce wrote:
On Sat, Mar 02, 2013 at 02:16:19PM -0600, Jules
Richardson wrote:
Came home with a dumpster-find Laserjet 4 (with jetdirect board) yesterday.
Self-tests OK but prints with some minor repetitive ghosting on the pages
(it has almost a million pages on the clock).
There's some baked-on toner on the fuser roller which might[1] (most
probably!?) be the culprit, but gentle cleaning doesn't seem to get rid of
it; question is, how aggressive can I be with it? I don't know if the
blue-gray color is just a thin coating of something magical, or if it's a
hunk of solid metal which can be scrubbed.
I have a HP1300 I am contemplating replacing the fuser mylar on as
the mylar is torn. You can separately replace the wrapper on the roller
http://www.brokenprinter.com
Hmm, not available for my LJ4 it seems - but $38 for a whole new fuser
assembly is pretty good (and about a third of what I'd seen them for
elsewhere). Looking at that site, it would seem that there's a teflon
coating on the upper roller and it's worn on mine, making the toner stick;
cleaning ain't gonna bring it back. The lower roller's in pretty bad shape too.
Maybe I'll run off a few "home consumption" docs just to make sure that
there aren't any other problems with it, then treat it to a new fuser assembly.
I'm not sure how to estimate how much life there is left in the toner
cartridge; I don't think the LJ4 maintains a count of how many pages have
been printed since last install (or more likely, last time the user
indicated that a new cartridge had been fitted).
cheers
Jules