If the problem is only with one PC and all others are ok,I would suggest you to start with a reinstalation of the print driver. Install it locally, instead of choosing "Network Printer" from the instalation wizard.
Here are some links to help.
Yes this is only happening from one pc. The printer is a network printer, and everytime we attempt to print we made sure that both document size and paper size were both legal without scaling.
I'm having an interesting issue with my printer. One of the computers, which can find the printer and prints fine on normal paper, does not print correctly on legal size. The printer has legal size paper in it, and it has legal size available as an option, but it doesn't print the document sent, and instead prints a Xerox WorkCentre Pro C3545 Configuration Report.