Canon BJC-85 User Manual page 134

I Closing the BJ Background Monitor
From the File menu, select Quit.
The BJ Background Monitor closes.
If you want the BJ Background Monitor to close automatically after the
last job is printed, from the File menu, select End After Printing. This
feature is enabled when End After Printing is marked with a check mark
in the menu.
Using the BJ Background Monitor
Printing With Windows 133