562827 Need help fixing printing problem in Illustrator

I have a file in Illustrator in which the letters get jagged when I try to print it out. It looks great on the screen, but not on paper. The problem persists when I export the file to PDF, JPEG etc.

I need to have this fixed tomorrow before lunch, Central European Time, and will be available from 9.00 in the morning. Teamviewer, Skype etc. are possible.

Please only submit if you are a pro at this, feel free to specify your expertise in problem.

I have:

MacBook Pro from 2010

Mac OS X 10.7.3

Illustrator CS5

Printer OKI Data C801

Ilustrador Odd Jobs PDF

ID do Projeto: #2308784

Sobre o projeto