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Troubleshooting
This section provides troubleshooting suggestions for some of the most common issues associated with hardware and
software installation.
For late-breaking information, see the readme file and release notes, or visit the product support website at
www.hp.com/support/officejetprok550.
Problems printing an alignment page
Check the printer to ensure the following:
•
Power light is on and not blinking. When the printer
is first turned on, it takes approximately 45 seconds
to warm up.
•
The printer is in the Ready state, and no other lights
on the control panel are lit or blinking. If lights are lit
or blinking, see "Interpreting control panel lights" on
page 18.
•
Ensure power cord and other cables are working,
and are firmly connected to the printer.
•
All packing tapes and materials are removed from
the printer.
•
Rear access panel (HP Officejet Pro K550) or duplex
unit (HP Officejet Pro K550dtn/K550dtwn) is locked
into place.
•
Paper is loaded correctly in the tray, and is not
jammed in the printer.
•
Ensure the orange protective caps have been
removed from each printhead.
•
Printheads and ink cartridges are properly installed
in their correct color-coded slots. Press down firmly
on each one to ensure
proper contact.
•
Printhead latch and all covers are closed.
Problems installing software
Check or perform the following:
•
Make sure the computer meets the system
requirements. See the onscreen user guide on the
Starter CD.
•
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 typed, 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/officejetprok550.
•
In the Windows device manager, make sure that the
USB drivers have not been disabled.
•
If you are using Windows and the computer cannot
detect the printer, run the uninstallation utility
(Util\Scrubber\Uninstall.exe on the Starter CD) to
perform a clean uninstallation of the printer driver.
Restart your computer, and reinstall the printer driver.
20
Problems connecting to a network
Note: After correcting any of the following, run the
installation program again.
General network troubleshooting
•
If you are unable to install the printer software,
verify that:
•
All cable connections to the computer and the
printer are secure.
•
The network is operational and the network hub
is turned on.
•
All applications, including virus protection
programs and personal firewalls, are closed
or disabled.
•
Make sure the printer is installed on the same
subnet as the computers that will be using
the printer.
•
If the installation program cannot discover
the printer, print the configuration page
(see "To print a configuration page" on
page 21), and enter the IP address manually
in the installation program.
•
If you are using a computer running Windows,
make sure that the network ports created in the
printer driver match the printer IP address:
1) Print the printer's configuration page.
2) From the Windows desktop, click Start, point
to Settings, and then click Printers or Printers
and Faxes.
3) Right-click the printer icon, click Properties,
and then click the Ports tab.
4) Select the TCP/IP port for the printer, and then
click Configure Port.
5) Compare the IP address listed in the dialog
box and make sure it matches the IP address
listed on the configuration page. If the IP
addresses are different, change the IP address in
the dialog box to match the address on the
configuration page.
6) Click OK twice to save the settings and close
the dialog boxes.
Problems connecting to a wired network
•
If the Link light on the network connector does not
turn on, make sure that all of the "General network
troubleshooting" conditions listed above are met.
•
Though it is not recommended that you assign the
printer with a static IP address, you might resolve
some installation problems (such as a conflict with a
personal firewall) by doing so. For more information,
see the onscreen user guide.
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