[kingu]

Every Kinkos I've been to has a signin sheet for the computers, as well as logins on the computers themselves. If someone happened to be around that area, they might want to stop in and maybe inquire on how to sign onto the computer. If they are presented with the sign in book, they might want to find an excuse to look through it... It would be interesting to see who had signed in for the computers there. Very interesting.

[Sunshine55]

At our Kinkos you have to show picture ID to use the computers too.

[rintense]

That might spot the forgery, but Kinkos keeps no records of faxes, other than a cover sheet given to the person (if needed). Most workers at kinkos have consistent hours, so I'd be questioning the folks that work there. On the other hand, people fax stuff all the time. It would be hard to know who sent what fax, unless you read them.