You can
check the print head nozzles using a utility on your Windows or Mac
computer.
Load a few sheets of plain paper in the
product.
Do one of the following:
Windows: Right-click the product icon in the
Windows taskbar.
Mac OS X 10.6/10.7/10.8: In the Apple menu or
the Dock, select System
Preferences. Select Print &
Fax or Print & Scan,
select your product, and select Options
& Supplies. Select Utility and select Open Printer Utility.
Mac OS X 10.5: In the Apple menu or the Dock,
select System Preferences. Select
Print & Fax, select your
product, and select Open Print
Queue. Select Utility.
Select Nozzle
Check. You see a window like this:
Click Print.
Check the printed pattern to see if there are gaps in the
lines.
Print head is clean
Print head needs
cleaning
If there are no gaps, click Finish. If there are gaps or the
pattern is faint, clean the print head.