well, there are a number of ways to do this. screen printing being the oldest method, but it is economical if you have to make lots of boards of a single layout. then there is the toner transfer method. have a look at the following page
samcheetah,..
Thanks very much for this link it's really useful. However, the same problem occurs which is the type of paper mentioned in the site " TRANSFER" paper.
Do you have anyother alternative.?
well, you can experiment with different types of picture/glossy papers available from stores near you. you might find something better than the one in the link i gave you. this method has been known to work with any paper that is able to transfer the toner. you can also use grease-proof paper (we call it butter paper here) which is very cheap.
a very good alternative is the Press-n-Peel transfer paper available from Techniks. Techniks claim to be an international distributor so you can order Press-n-Peel from anywhere. here is a link about the paper
this has been known to be the best paper for the toner transfer method. here is another link of a person who has experienced the quality of Press-n-Peel.
at first i thought it would be impossible for PnP to be available in my country. but with some help of my freinds i located a distributor who stocks PnP. so you might be lucky to find a distributor who stocks PnP in your country