Homebrew PCBs

Hi,

Currently I'm are using a Laserjet 1100 for my photomasks as it prints
really opaque black prints well on OHP transparencies. However when
the lines become to thin (<0.35mm) small holes start to appear at
random along the lines. This forces med to spend way to much time
covering the holes with a marker pen.

Another problem is that the printer distorts larger PCB designs to
such an extent that i becomes impossible to align large double sided
PCB's. I could deal with the distortion if it was linear on both sides
but the elongation of the y axis due to heat up of OHP transparencies
is unfortunetely somewhat different on the sides. I could probably buy
some thick tracing paper to avoid some of the distortion. But i would
rather find a new good printer that just works with transparencies (if
at all possible).

So are there any recommendations on laser printers that have worked
well for you guys?

Cheers
//Iman