http://users.tkk.fi/~jwagner/electr/dc-rx/PCB_devel.htm
1] Straight print from PCBNEW menu under a range of options is unusable (tracks joined, offset and pads connected randomly).
2] Choose plot with Postscript option from file menu and write (in this case) xxxxx-Component.ps. Printing from this using gv is better but unusable also.
3] Run ps2pdf on this .ps and open resulting .pdf with xpdf. Print from this.
(further notes: print command for our CUPS shared printer is lpr -P printer, resolution was set by way of web interface to 600 dpi)
next stage exposure (UV light) and photoresist: