Canon imagePROGRAF iPF815 - Manual (Page 927)

Execute printhead cleaning.
Cause Corrective Action
The Printhead nozzles are clogged. Follow these steps to clean the Printhead.
1. Hold down the Stop button for a second or more to cancel printing.
2. Printhead cleaning options.
(See "Cleaning the Printhead.")
→P.819
If this message is still displayed, replace the Printhead.
(See "Replacing the Printhead.")
→P.820
Error Message > Messages regarding printheads >
iPF815 Execute printhead cleaning.
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