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Re: [Homebrew_PCBs] direct laserjet to copper - not

2007-11-11 by Stefan Trethan

Probably you already damaged the drum or fuser coating.
Direct laser printing will not work easily for several reason, many
discussed here at great length before.

The only possible semi-direct laser printing method i can imagine was
not tried yet as far as i know. Basically it involves an intermediate
silicone roller picking up the image from the drum to transfer it to a
heated board passing below. I have not found a theoretical reason yet
why it would not work but that doesn't mean much.

ST

On Nov 11, 2007 7:20 PM, DJ Delorie <dj@...> wrote:
>
> Got some 8 mil thick clad, tried sending it through an old Laserjet 4.
> The panel went through OK, but the toner just didn't stick to it.  I
> saw a faint image of the board on the copper, and a second print on
> paper had two copies of the board on it.
>
> Sigh.
>
> OTOH the lj4 seems to be able to image 3.33 mil lines reasonably well,
> and 5 mil lines look nice and crisp.  Maybe it will work better for TT
> than the 2550N, assuming I can get it onto the board without mangling
> the toner.
>
>
> Be sure to visit the group home and check for new Links, Files, and Photos:
> http://groups.yahoo.com/group/Homebrew_PCBs
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