Canon BJC-4400 - Manual (Page 69)

Chapter 4 Maintaining the Printer 4-15
❍ Make sure the marks on the lever and the cartridge holder
align.
❍ The BJ cartridge is now positioned and locked.
C
Do not manually move the mechanism that houses the
BJ cartridge. Attempting to move the BJ cartridge holder will
damage the printer.
Press the lock
lever down
completely;
do not use
excessive force.
Maintaining the Printer
LOCK LEVER
BJ CARTRIDGE
HOLDER