[rescue] Phaser ink
ajwdsp at cloud9.net
Wed Aug 20 19:36:58 CDT 2008
On Aug 20, 2008, at 2:27 PM, Curious George wrote:
> Yes, obviously. :< I imagine the "dried" (congealed?) ink
> clogs the nozzles and can't be completely "reliquified" -- at
> least not *reliably* and consistently enough for "print
> quality" so they just purge the nozzles comletely?
> I've not looked into the technology. I imagine it is more
> similar to ink jet than, for example, thermal dye transfer?
Yes. It's half laser, half inkjet. The crayons are melted into the
printhead which then sprays them on a rotating drum. The pre-heated
paper moves by and then is pressed against the drum where the ink
sticks to the paper. During a cleaning cycle a funky oval gasket
presses against the print head and a vacuum is drawn by the vacuum
pump to pull ink out. The gasket pops back and there is a squeegee
inside that then wipes the printhead in an up-down motion. The cap-
wipe is the biggest failure item on the older machines, not the
printhead itself. If you can't quite clean properly, check the cap-
wipe gasket for cracks or complete failure.
I have almost all the Tektronix and Xerox service manuals up to a few
years ago which include the 8200 as the last printer.
More information about the rescue