Canon MG7700 Series Online Manual page 824

Remove the jammed paper, load new paper, tap OK on the touch screen, and try printing again.
"Printer cover Close the operation panel on the machine.
open"
"Waste tank The ink absorber is nearly full.
full"/"Ink absorber
Check the support code on the touch screen and take the appropriate action to resolve the error.
full"
List of Support Code for Error
"No ink"/"Ink Check the support code on the touch screen and take the appropriate action to resolve the error.
cassette error"
List of Support Code for Error
"Ink Error" Check the support code on the touch screen and take the appropriate action to resolve the error.
List of Support Code for Error
"Hardware Error" Check the support code on the touch screen and take the appropriate action to resolve the error.
List of Support Code for Error
"Printer error" An error requiring servicing may have occurred.
Turn off the machine and unplug it.
Plug in the machine again and turn it back on.
If this does not solve the problem, contact your nearest Canon service center to request a repair.
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