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Subject: Re: [Homebrew_PCBs] no fuser (was: How to ajust toner darkness in HP LaserJet 4m plus printer?)

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2005-04-16

On Sat, 16 Apr 2005 13:39:18 -0700, Tobias Gogolin <usertogo@...>
wrote:

>
> Hi folks
> I am wondering has anone ever tried to disconnect the fuser (the hot
> chamber the paper runns trough to fuse the toner to the paper?
> I have notices that when there was a paper jam the section printed but
> not fused has the toner very loosly on the paper, which if it can be
> handled without disturbing the pattern may result in a more complete
> transfer of toner ?
> cheers
> Tobias
> P.S>: It would be cool if sombody could figure out how to increse the
> precission of the print offset (margin) so well that one could print 2
> or more layers of toner?


i do not think the loose toner would be practical, alignment and all.
I remember one time it got stuck and i manged to rescue the printout by
running it through the fuser i use for transfer.
I do not see what the advantage would be of keeping the toner loose, how
would you get it on the PCB without simultaneously fusing it to the paper
anyway?
Do try the silicone paper if you have trouble with release. I will do more
experimenting soon, with neutral-curing silicone i got a few days ago so
there are no acetic acid concerns.

i don't think you can print twice with a laser, inkjets are better with
alignment.

ST