Homebrew PCBs

Hi all. 

I have gotten hold of an old HP Laserjet 2100M. It states a resolution of 1200dpi x 1200dpi and so hopefully it perfect for TT. 

I have uploaded a couple of pictures to the album, HP Laserjet 2100M.

The first two are printouts of DJ Delorie's excellent spirals - many thanks. 

picture19 represents the 6mil spiral track and space. 
picture 20 represents the 4 mil spiral track and space. 

I was wondering if anyone has managed similar/better quality. I was hoping for maybe cleaner lines but wondering if this is just a practical limit of the technique. I printed on normal paper for test and measurement. I did set the intensity to 5.  

I mean, its impressive anyway but not sure the tracks would look that great once I tried to print to toner transfer paper and actually transfer to a copper board, etc. So, trying to perfect the settings and try and get the most out of it.

Thanks

Trev