Canon MG7100 series Online Manual page 177

Important
You cannot print if the ink tank is installed in the wrong position. Be sure to install
the ink tank in the correct position according to the label on the print head holder.
You cannot print unless all the ink tanks are installed. Be sure to install all the ink
tanks.
6. Close the operation panel gently.
Caution
When closing the operation panel, be careful not to get your fingers caught.
Important
When opening or closing the operation panel, do not touch the buttons and touch
screen on the operation panel. Doing so may result in an unexpected operation.
Note
If the error message appears after the operation panel is closed, take appropriate
action.
A Message Is Displayed
When you start printing after replacing the ink tank, the machine starts cleaning the
print head automatically. Do not perform any other operations until the machine
completes the cleaning of the print head.
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