I can't remember where I read this tip, but I have just tried it and it works a dream!
If you use inkjet film (Jetstar Rapid Order no. 39-0780) and find there are lines in the printing that look a bit thin (lines run across the page) just take the freshly printed sheet and expose it to the steam from a kettle for a brief moment. The ink will magically merge into a solid opaque trace just like you want.
Don't blame me if it does'nt work for you, but it really seems to improve the quility of the trace for me
PCB film tip 
Posted - 28 Feb 2010 : 18:03:13
