The HP Designjet 450 is a type of wide-format printer called a “plotter.” If you are setting up a Designjet 450 for the first time, you may want to perform a test on the printer to confirm that it functions properly. The Designjet 450 has several types of internal self-test pages that it can print. You can trigger each of these test pages by pushing a different combination of buttons on the printer control panel, and each test page has its own purpose.
