HP Officejet Pro K8600 Printer - Manual (Page 66)

Check the paper type setting
When printing on transparencies or other special media, select the corresponding
media type in the print driver. For more information, see
To print on special or custom-
sized media (Windows) .
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. For more information, see
To
print the print quality diagnostic page .
Colors are printing as black and white
Check the print settings
Make sure Print in Grayscale is not selected in the printer driver. For information on
changing this setting, see
Change print settings .
Wrong colors are printing
Check the print settings
Make sure Print in Grayscale is not selected in the printer driver. For information on
changing this setting, see
Change print settings .
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. For more information, see
To
print the print quality diagnostic page .
Printout shows bleeding colors
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 device or printhead. HP does not guarantee or support
refilled ink cartridges. For ordering information, see
HP supplies and accessories .
Check the media type
Some media types are not suitable for use with the device. For more information, see
Select print media .
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. For more information, see
To
print the print quality diagnostic page .
Chapter 5
62 Maintain and troubleshoot