After reviewing a few posts I tried going to the back of the computer and pulling on the large bump (maybe 10 inches wide). It started coming out with no force and I reinserted it so that it clicked into place. Printing came out straight after this.
One post used the term "duplexing add-on" (turns paper around for 2 sided printing). Another said "large cartridge". Whatever it is, it must have been putting uneven pressure on the paper.
I suspect this may also solve the problem of pages ripping.