Printing disaster

hey,
im not really a new mac user but still got a few problems. im trying to print my uni assessment off but of course comes out in tiny letters, i used ( command,shift and +) to make it bigger saved it ect, but i wanted to print again and came out tiny again.

any idea how to make it print out big too?


ps. changing front over comman t , didnt work still prints out tiny
Lea =)