Canon Pixma ip4000 printer. The auto sheet feeder allows more than one sheet to pass through. This is after a paper jam when duplex printing - I probably did the wrong thing when removing the jammed paper.
It is making a curious grinding noise when it prints, and the copies are coming out with some lines...
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It is making a curious grinding noise when it prints, and the copies are coming out with some lines with a split in the middle going across the page.