Howard, I am using an HP P2015dn -- almost the same model, but has a network interface. Presumably the engine is the same.
Using the HP toner, I have gotten good results doing TT. I've only done three boards, plus some testing, but all of them have worked pretty well.
I did the first two boards printing onto thin glossy paper from a catalog. This worked very well for transfer, but it was hard to see the pattern -- a problem since I was trying to do a double-sided board. The paper came free pretty easily after soaking in hot water.
I did the third board using HP color laser glossy paper, which had been recommended here. The transfer turned out very well ... but getting the paper free was a bear. I soaked and soaked, and rubbed and rubbed ... I never did get all the paper completely off of the places where the toner was, but it was all off the copper, so I etched, and it turned out very well.
All of the above were done using a household iron, turned up to max, with a sheet of plain paper between the iron and the tt paper/pcb. I have recently acquired a very nice laminator, and have run a sample of PCB through just to see how it worked. The answer is, it worked very well ... with an unexpected result. I was able to peel away the glossy paper immediately after the last pass through the laminator, and all the toner stayed adhered. There is still a thin film of paper (or glossy stuff?) on top of the toner, but it looks similar to what I had after all the effort of soaking and rubbing before. I haven't etched this yet to see how it does -- I was just using part of an old pcb layout. I'm wanting to try again with some test patterns, seeing how well I can do fine lines and spacing, and whether the peel-off-immediately technique will work consistently.
None of the above may be helpful to you if the main problem is how much toner you're getting onto the paper. OTOH, if you're printing to matte paper, I wonder if it is more a problem with getting it transferred to the pcb. OTOH (let's see ... we're up to three hands now!) it sounds like you may be getting the results I've gotten with the glossy paper -- a thin residue of paper left behind, even after soaking and rubbing. If so, try etching -- hopefully your experience will be like mine, and it will work just fine.
As far as printer drivers go ... I am running Linux (ubuntu), and doing layout with Kicad. One quirk of the Kicad program is that it does not print out a usable layout with the "print" command. Instead, I have to "plot" it to a PostScript file, which then I can print. The print driver is just whatever came up natively on ubuntu's postscript/pdf viewer. It has a tab for "image quality"; I have tried changing it from "Use printer setting" to "Highest quality," but I can't tell any difference, so I'm assuming the printer setting IS at the highest quality. The only other option is "Save toner," which I haven't tried.
I hope something in this long and rambling post has been of help!
Andy
--- In Homebrew_PCBs@yahoogroups.com, "Howard" <howard_g7lqy@...> wrote:
>
> Hi
> Anyone using this printer for toner transfer ?
> what sort of results do\did you get ?
>
> I have been having a play about with it, and i can get it to print
> dark on some paper(has a matt finish), but i think that there is not
> enough toner going onto the paper(it leaves a milky looking film on
> the pcb after soaking in warm soapy water).
>
> Is there a printer driver for this printer that can put more toner on
> the paper ?
>
> Thanks
> Howard
>