HP 3000CP - Manual (Page 114)

Working with Ink Systems
Replace the Ink System
4-14
After you open the window, the printer will display the following message on the
front panel. Blinking indicators show which printheads must be replaced. In the
following example, the yellow printhead needs to be replaced.
2 Press down lightly on the printhead you are replacing and pull it toward you,
removing it from its stall as shown below. Discard the used printhead.
NOTE:If you print mostly in Economy mode or extremely heavy image densities,
inspect the carriage for ink residues whenever you replace the ink system(s).
3 Take the new printhead and remove the colored protective tape from the printhead’s
nozzles.
C4704036
Replace printhead(s)
Yellow
Cyan
Magenta
Black
C4704135
C4704046