From what I understand, Print Club is a really popular thing with high school girls, who like to go to different places (each booth is supposed to have a unique background to encourage people to "collect them all") to get pictures like these done with their friends, which are editable with a simple program and then get printed as stickers.
Beyond that, it's sort of like women-only train cars - anyplace where there's a chance to hit on high school girls is a place where girls will try to avoid unwanted advances.
Print Seal CornerUwaaah!This is so nostalgic...!I used to come here so often in junior high!Since I'm here anyways, I might as well play games for a bit.Hmmm... Barging into the fighting games would be pretty scary...Men unaccompanied by women may not enter.Girls' Area