Hello Roman,

do you know the toner transfer method?
In this case you print the positive picture of the pcb
on a heat resistant plastic film with a laser printer.
Afterwards you take the raw pcb with the copper side upwards,
put the plasic film with the picture side down on it.
Then ironing the plasic film. The toner will melt and the
image is transfered to the copper. Plastic film is removed afterwards.
While the melting toner particles are etch resistant you can put
you pcb direct in Fe(III)Cl or something else for etching.
After etching you can remove the toner with something like aceton,
and voila, the pcb is ready for drilling.

Regards Thomas

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