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.
>
>
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