That's a very broad and open-ended question. Without more information from you it is impossible to give an answer that means anything.
- What do you mean by 'printer'? On APUG it means someone who works in a darkroom making silver gelatin and/or Pt/Pd and/or alt process prints from negatives.
- Where are you going to school?
- What is your current major? Are you thinking of switching majors to become a printer?
- Why do you feel you want to become a printer?
- What experience do you have? Academic qualifications? Apprenticeships? Jobs? Has photography been a hobby for you? How many years?
- Who do imagine yourself working for?
- And the famous sure-to-frustrate question: Where do you see yourself in 5 years? 10 years?