Canon imagePROGRAF PRO-300 13" Photographic Inkjet Printer - Manual (Page 622)

List of Support Code for Error (Paper Jams)
If paper jams, remove it following the appropriate procedure as shown below.
• If you can see the jammed paper at the paper output slot / top feed / manual feed tray:
1300
• If the paper tears and you cannot remove it from the paper output slot / top feed / manual feed tray or if
the paper is jammed inside the printer:
Paper Is Jammed inside Printer
• If the small size paper is jammed:
Small Size Paper Is Jammed inside Printer
• Cases other than above:
Other Cases
622