Homebrew PCBs

----- Original Message ----- 
From: "jam5411" <mardock@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Monday, February 13, 2006 7:15 PM
Subject: [Homebrew_PCBs] Laser Printers


>I read with much interest all the work that is going into the TT
> method of creating artwork on copper. Has anyone experimented with
> modifications to a Laser Printer to directly apply the artwork to the
> copper? Seems this would solve a lot of the issues, if it were
> possible. I remember a few years back I had a Laserjet 4L. It had a
> straight through path and would accept some pretty thick card stock as
> I recall. Now I wish I had not thrown it out in the late last century...

Xerox used to have a technique for transferring artwork to a PCB using the 
flat-bed copier (their first product, developed before the 914 automatic 
copier).  The toner pattern was transferred from the selenium plate to the 
PCB, then fused. When I worked for Rank-Xerox 40 years ago the UK training 
centre actually used the process a few times, and it worked quite well for 
the type of boards commonly used in those days. Drum-based copiers wouldn't 
work.

Leon
--
Leon Heller, G1HSM
leon.heller@...
http://www.geocities.com/leon_heller