Troubleshooting
This section provides troubleshooting suggestions for some of the most common issues associated with hardware and software installation.
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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
•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.
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)
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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