34 Ink Cartridges and Printheads
The frequency with which you need to change ink
cartridges depends on the workload of your HP
Designjet printer. Printheads should not need
replacing so often, only when problems of image
quality occur. If you find problems with the image
quality, follow the procedure on page 16 in The
Problem Is...Image Quality in this Pocket Guide.
Location of Printheads and Ink Cartridges