HP Officejet Pro K850dn Printer - Manual (Page 93)

Troubleshooting installation issues
Problems printing alignment page
When new printheads are installed, the printer automatically prints two alignment pages to align the
printheads. This process takes about eight minutes. Do not open any covers or push any buttons
until the alignment pages have printed. The alignment pages may be discarded after they are
printed. If the printer does not print the pages, then see
General troubleshooting tips or align the
printheads manually (see To align the printheads ).
Problems installing software
Verify the computer requirements
Make sure the computer meets the system requirements. See Operating system and network
protocol specifications .
Verify installation preliminaries
● The computer meets the system requirements. See Operating system and network protocol
specifications .
● Before installing software on a Windows computer, ensure all other programs are closed.
● If the computer does not recognize the path to the CD drive that you type, ensure you are
specifying the correct drive letter.
● If the computer cannot recognize the Starter CD in the CD drive, inspect the CD for damage. You
can download the printer driver from
www.hp.com/support/officejetprok850 .
Reinstall the printer software
If you are using Windows and the computer cannot detect the printer, insert the Starter CD, click
Utilities, and then click Uninstaller to perform a clean printer driver uninstallation. Restart your
computer, and re-install the printer driver. See
Uninstalling the printer software .
Problems connecting to a network
NOTE After correcting any of the following, run the setup program again.
General network troubleshooting
If you are unable to install the printer software on the computer, verify that:
● All cable connections to the computer and the printer are secure.
● The network is operational and the network hub is turned on.
● If the Link light on the network connector does not turn on, make sure that all of the
Troubleshooting tips and resources conditions are met.
● All applications, including virus protection programs and personal firewalls, are closed or
temporarily disabled.
ENWW Troubleshooting 85