Canon BJ-10sx - Manual (Page 13)

Inside the Printer
Inner cover
This cover provides access to the inside of the printer when you're
installing the ink cartridge or changing the DIP switches.
Ink cartridge holder
You install the ink cartridge on this yellow holder as described later in
this chapter.
Ink cartridge lock lever
This lock lever secures the ink cartridge.
Paper release lever
This lever releases the loaded sheet of paper. You lift this lever to clear
a paper jam. Leave the lever in the down position when you are printing.