Printer is broken

My daughter is a student. She constantly prints laboratory works, essays, coursework. The last work printed with a strip across the entire sheet. What to do? New printer to buy or can I fix?
There are 5 answers
Answered 3 March 19:32
Do you have a laser printer or inkjet? on the inkjet printhead could break. You need to take the printer to the service center.
Answered on March 3 19:52
When I gave away a cartridge from my HP laser printer, I was also recommended to make minor repairs to the cartridge. It turned out that the reason for the poor print quality was because of it.
Answered on March 3 20:05
Author, what city are you in? There is a printer repair in Novy Urengoy, find out if they repair your printer model, if geographically suitable, you need a specialist to find what the problem is, I think you can buy spare parts for all models now and it will be much cheaper than buying a new printer .