You can use
the Ink Cartridge Replacement utility to view on-screen
instructions for replacing an ink cartridge. This method allows you
to replace a cartridge before it is low or expended (if it is too
old, for example).
Do one of the following:
Windows: Right-click the product icon in the
Windows taskbar and select Printer
Settings. Then click the Maintenance tab.
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.
You see a window like this:
Click the Ink Cartridge
Replacement icon and follow the on-screen instructions to
replace your ink cartridges as necessary.