User's Manual

Cause Corrective Action
The Printhead cannot be recognized because it is not installed correctly.
1. Open the Top Cover.
2. Reinstall the Printhead.
(See "Replacing the Printhead.") ➔ P.549
Execute printhead cleaning.
Execute printhead cleaning.
Cause Corrective Action
The Printhead noz-
zles are clogged.
Follow these steps to clean the Printhead.
1. Stop printing by pressing ▲ or ▼ to select Stop Printing.
2. Clean the Printhead.
(See "Cleaning the Printhead.") ➔ P.548
If the message is still displayed when printing, replace the Printhead.
(See "Replacing the Printhead.") ➔ P.549
Press ▲ or ▼ to select Print, and then press the OK button to resume printing. However, note that this error may
affect the printing quality.
iPF780 Execute printhead cleaning.
User's Guide
Error Message Messages regarding printheads
621