Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
If I understand you correctly, your printer's lines of printed text are squeezed together, and also blurred, and unreadable.
Are you by any chance using a refilled cartridge set, or remanufactured cartridges, or 'Canon compatible' cartridges? they can often contribute to poor printing results.
Also, if the lines of print are squeezed together vertically, that can mean that a paper feeding roller, somewhere in the paper path, is not propelling the paper adequately, so being moved along less, the vertical squeezing happens... does that sound likely? if so, the following may help:
If the problem might possibly be owing to aging roller surfaces (for paper is fed into faxes and printers with rubber or plastic cylindrical rollers, that propel the sheet into or through the machine)... then you might need to clean the rollers in the problem area where feeding is not happening.
Remove all paper from the machine, unplug it, and open it so as to have access to the rollers in the problem area where feeding is not being done properly.
Take a clean high-quality lint-free rag cloth, moisten it with rubbing alcohol, and rub the rollers firmly all over their paper-contacting surfaces, three times over.
(If the rollers are hard to reach, there is another way to clean them... let me know if that is the case, and I will detail how to do the cleaning.)
Allow 5+ minutes for drying-off, then reload the paper, close up the machine where you opened it up, and then try again.