HP Officejet Pro L7550 - To clean the printheads

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To clean the printheads


Cleaning uses ink, so clean the printheads only when necessary.

The cleaning process takes up to 3.5 minutes. Some noise might be generated in
the process.

Control panel: Press the Setup button, select Tools, and then select Clean

Embedded Web server: Click the Device Settings tab, click Device Services in
the left pane, select Clean printheads from the drop-down list in the Print Quality
section, and then click Run Diagnostic.

Toolbox (Windows): Click the Services tab, and then click Clean Printheads
and follow the onscreen instructions.

HP Printer Utility (Mac OS): Click Clean from the Information and Support panel.