Homebrew PCBs

joshdewinter wrote:

> Hey JT.
>   You know, at our comapany, we use paper-thin copper sheets for the
> in-between layers of multi-layer boards.  One night, I got the idea
> of sending one of these through our LaserJet printer.  It didn't
> work at all.  It's not that it didn't make it through, but the toner
> just couldn't stick to the copper.  I think it must have to do with
> the static charging the printer does to the material it is printing
> on to make the toner stick before fusing.  For some reason, metal
> just doesn't work.  Not to get your hopes down, but just thought I'd
> share my results.
>
> -Josh
>
>
>
> --- In Homebrew_PCBs@yahoogroups.com, "cdaw01" <jt@j...> wrote:
> > Greetings.
> > Out of a lack of interesting things to do, I attempted TT
> > I tried about 7 different papers I had laying around, and came
> > across something that is working really well. Cannon HR-101 High
> > resolution inkjet paper, only catch is, it works best if printed
> on
> > the wrong side, as the good side has a plasticy coating, that
> tends
> > to stick to the board as well as the toner. When used backwards,
> > it's kind of gripy to the laminator or iron base, but this seems
> to
> > subside rather quickly, a quick dip in cool water, and the plastic
> > film peels off in one piece, and the rest of the paper backing
> > washes off quite easily. Using a clinky ole IBM 4019 (ebay for
> $25,
> > at 300dpi, I'm printing .016 traces from eagle, and they are
> coming
> > out solid, better than I could ever hope for printing film from
> this
> > printer. I have an Optra R+ with 64M (6X9 at 1200dpi) I usually
> use
> > for film, but I got this ebay deal - for a couple of reasons, It
> has
> > a straight thru manaul feed, I was going to attempt to feed a
> board
> > directly thu- but I'm not going to try that till the toner is near
> > gone, way I see it It'll either work, or totally fudge the drum
> (in
> > this case it's in the tonar cartridge and is replaced with a new
> one
> > (like most laser printers) ot all the toner will wind up on the
> > fusers brush.
> >
> > JT
>
>
>
> Be sure to visit the group home and check for new Bookmarks and files:
> http://groups.yahoo.com/group/Homebrew_PCBs
>
>
> ------------------------------------------------------------------------
> *Yahoo! Groups Links*
>
>     * To visit your group on the web, go to:
>       http://groups.yahoo.com/group/Homebrew_PCBs/
>        
>     * To unsubscribe from this group, send an email to:
>       Homebrew_PCBs-unsubscribe@yahoogroups.com
>       <mailto:Homebrew_PCBs-unsubscribe@yahoogroups.com?subject=Unsubscribe>
>        
>     * Your use of Yahoo! Groups is subject to the Yahoo! Terms of
>       Service <http://docs.yahoo.com/info/terms/>.
>
> most laser printers xfer the image, toner, from a drum or photo roller 
> by puting a high voltage charge on one side of the paper and "sucking" 
> the image from the drum thru the air to the paper.  The paper just 
> keeps the toner from reaching the corona wire where the high voltage 
> is.  Your sheet of copper just killed the charge.