It is a good idea to print out a test page every time you change your printer’s ink cartridges. The test page shows the machine’s calibration and whether it is correctly printing text and graphics. The test page also displays print quality. Color streaking indicates a clogged cartridge which needs to be cleaned. Some printer models require a manual test-page printout, but the HP Deskjet 5150 automatically prints a test page after you replace the ink cartridges. Writer Bio
