canned air: clean out any paper dust, tweezers if necessary. if a torn piece of paper covers the paper sensor, it will think it's jammed. just printer diagnostics in general. has happened to lots of people and lots of different brands/mfr of printer.
lower cost paper I am told generates more paper dust, but this may only be a problem in high volume printing.
another problem can be a dusty environment. dust and computers/printers don't work together well.