Hi mjgratz.
The inks have two "low ink" indications. The yellow indicator appears when the ink is recognized at ~ 1/2 capacity or less (for a standard ink tank). The red indicator indicates a critical amount of ink remaining, and that it urgently needs to be replaced. If you're on the yellow error for an ink, you may continue printing, though how quickly it runs out will depend on the volume and color of what you're printing.
When the ink reports as empty with a red indicator, you may still see some ink remaining in the ink tank. This extra margin is included so that air doesn't get into the ink feed and printing system, as that would significantly lower the operational life of the print head and printer.
If you need immediate assistance with this issue, please contact us using the numbers and information at http://Canon.us/ContactLI
Did this answer your question? Please click the Accept as Solution button so that others may find the answer as well.
