Canon PIXMA printer code 1300: meaning and exact next steps

On the covered Canon PIXMA printer, 1300 means support code 1300: paper is jammed in the paper output slot, per Canon's MX920 series manual. First, look for the jammed paper at the paper output slot. Then: Canon's own steps: if you can see the jammed paper, remove it. The power cannot be turned off while the machine is sending or receiving a fax, or while received or unsent faxes are stored in memory, and unplugging the power cord deletes those stored faxes, so finish the fax first.

If you need to turn the machine off to remove paper during printing, press Stop to cancel print jobs first. Pull the paper out slowly, holding it with both hands so it does not tear. If you cannot pull it out, turn the machine off and on, because the paper may be ejected automatically. If it tears, remove the paper from inside the machine. Then reload the paper and press OK. If you cannot remove the paper, it tears inside the machine, or the error continues after removal, contact the service center.