Why does the printing skip every 2 lines in the text?

Once my printer also started skipping lines. It was not fixed but it skipped 2 or 3 lines. Sometimes it prints fine but sometimes it skips the lines. Even text got also prints in two lines of the same lines. One of my friends suggests changing the link as well as a cartridge but nothing helps. Even I did Align the printer but the printer was aligned even doesn’t print in a line. Finally, I change the paper as told at fix printer skipping lines and it starts printing line by line. Print quality also gets much better. It looks a bit awkward but it’s true changing of paper can fix lots of print issue and increase the life of printer as well.