Canon PIXMA G3660 Online Manual page 145

I: Color button
Starts color copying, scanning, etc.
J: Alarm lamp
Lights or flashes when an error occurs.
K: Black button
Starts black & white copying, scanning, etc.
L: MENU button
Press to display the copy and scan menu items.
M: COPY button
Switches the printer to the copy mode.
N: and buttons
Used to select a setting item. These buttons are also used for entering characters.
O: Back button
Returns the LCD to the previous screen.
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