HP Officejet Pro K550 Printer - Manual (Page 41)

To align the printheads
Whenever you replace a printhead, the printer automatically aligns the printheads to ensure the best
print quality. However, if the appearance of your printed pages indicates that the printheads are
misaligned, you can start the alignment process manually.
●
Control panel: Press and hold ( Power button), press ( Resume button) 2 times, and
release ( Power button).
● Embedded Web server: Click the Settings tab, click Printer Services in the left pane, select
Align printheads from the drop-down list in the Print Quality section, and click Apply.
● Printer driver (Windows): Click the Services tab. For Windows 2000, Windows XP, and
Windows Server 2003, click the Service this Device button (this option is available only if the
Toolbox is installed), and then click the Printer Services tab. Click Align Printheads and follow
the onscreen instructions.
● Toolbox (Windows): Click the Printer Services tab, and then click Align Printheads and follow
the onscreen instructions.
● HP Printer Utility (Mac OS): Click Align from the Information and Support panel.
To calibrate the linefeed
●
Control panel: Press and hold ( Power button), press ( Resume button) 3 times, and
release ( Power button).
● Embedded Web server: Click the Settings tab, click Printer Services in the left pane, select
Calibrate Linefeed from the drop-down list in the Print Quality section, and click Apply.
● Printer driver (Windows): Click the Services tab. For Windows 2000, Windows XP, and
Windows Server 2003, click the Service this Device button (this option is available only if the
Toolbox is installed), and then click the Printer Services tab. Click Calibrate Linefeed and
follow the onscreen instructions.
● Toolbox (Windows): Click the Printer Services tab, and then click Calibrate Linefeed and
follow the onscreen instructions.
● HP Printer Utility (Mac OS): Click Calibrate Linefeed from the Information and Support panel.
To clean the printheads
NOTE 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 and hold ( Power button), press ( Resume button) 6 times, and
release ( Power button).
● Embedded Web server: Click the Settings tab, click Printer Services in the left pane, select
Clean printheads from the drop-down list in the Print Quality section, and click Apply.
● Printer driver (Windows): Click the Services tab. For Windows 2000, Windows XP, and
Windows Server 2003, click the Service this Device button (this option is available only if the
ENWW Maintaining the printheads 33