I was contacted by a potential client for a wedding photo shoot. She asked me about 4x6 prints which she wants to give to the guests during evening receptions. I only have a HP photo printer, and I don't think it will do the job because it's quite slow. I did some research and found that Sony UP-CR10L sounds pretty good. It takes about 16 sec to print a 4x6, and the cost is about $1000. I don't really mind investing in this printer because this is the second time I've been asked. My question is how much should I charge the client, and should I charge per print or a set fee? 150' roll of photo paper is about $130, and it will about about 300 of 4x6 prints.

