Canon MG7700 series Online Manual page 1053

1001
Cause
There is no disc tray.
What to Do
When printing on printable discs (BD/DVD/CD, etc.), use the disc tray supplied with this machine ("J" is on
the upper side). Place a printable disc on the disc tray, attach the disc tray to the machine, and then tap
OK on the touch screen.
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