Epson STYLUS PRO 4400 Reference Manual page 312

To perform a nozzle check using the printer software, see
"Checking the print head nozzles" on page 74 for Windows,
"Checking the print head nozzles" on page 157 for Mac OS
9.x, or "Checking the print head nozzles" on page 209 for Mac
OS X.
To clean the print head using the control panel, press the
Menu
button for 3 seconds.
To clean the print head using the printer software, see
"Cleaning the print head" on page 76 for Windows, "Cleaning
the print head" on page 159 for Mac OS 9.x, or "Cleaning the
print head" on page 211 for Mac OS X.
To realign the print head using the control panel, see
"Aligning the print head" on page 240.
To realign the print head using the printer software, see
"Aligning the print head" on page 77 for Windows, "Aligning
the print head" on page 160 for Mac OS 9.x, or "Aligning the
print head" on page 212 for Mac OS X.
312 Maintenance and Transportation
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