Colors are printing as black and white

Check the print settings

Make sure Print in Grayscale is not selected in the printer driver.

Wrong colors are printing

Check the print settings

Make sure Print in Grayscale is not selected in the printer driver.

Check the printheads

Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any problem areas, and perform the recommended actions (see To print the print quality diagnostic page).

Printout shows bleeding colors

Check the print settings

Some media type settings (such as for transparencies and photo papers) and print quality settings (such as Best) require more ink than others. Choose different print settings in the printer driver, make sure you select the correct media type. See Changing print settings.

Check the ink cartridges

Make sure ink cartridges have not been tampered with. Refilling processes and the use of incompatible inks can disrupt the intricate printing system, and result in reduced print quality and damage to the printer or printhead. HP does not guarantee or support refilled ink cartridges. For ordering information, see HP supplies and accessories.

Check the printheads

Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any problem areas, and perform the recommended actions (see To print the print quality diagnostic page).

Colors do not line up properly

Check the printheads

Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any problem areas, and perform the recommended actions (see To print the print quality diagnostic page).

Check the graphics placement

Use the zoom or print preview feature of your software to check for gaps in the placement of graphics on the page.

Lines or dots are missing from text or graphics

Check the printheads

Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any problem areas, and perform the recommended actions (see To print the print quality diagnostic page).

46

Chapter 4 Maintaining and troubleshooting

ENWW

Page 54
Image 54
HP K550 manual Colors are printing as black and white, Wrong colors are printing, Printout shows bleeding colors