Canon MX390 series Online Manual page 114

1688
Cause
The ink has run out.
Action
Replace the ink cartridge and close the paper output cover.
If printing is in progress and you want to continue printing, press the machine's Stop button for at
least 5 seconds with the ink cartridge installed. Then printing can continue under the ink out condition.
The function for detecting the remaining ink level will be disabled.
Replace the empty ink cartridge immediately after the printing. The resulting print quality is not
satisfactory, if printing is continued under the ink out condition.
Note
If the function for detecting the remaining ink level is disabled,
Since the information contained in the fax may be lost if it is printed in this condition, the
received fax will not be printed and will be stored in the machine's memory until the ink cartridge
is replaced. You must manually print out faxes that were stored in the memory. You can change
the setting so that the received fax is forcibly printed out instead of being stored in the memory,
but all or part of the fax information may not be printed because of the ink out condition.
is displayed on the LCD.