Chapter 8

Faxing

•UDP port: 427

•TCP port: 9220

HP printer installation

UDP port: 427

Solve printer management problems

This section provides solutions to common problems that involve managing the printer. This section contains the following topic:

•EWS cannot be opened

NOTE: To use the EWS, the printer must be connected to a network using either an Ethernet or a wireless connection. You cannot use the EWS if the printer is connected to a computer with a USB cable.

EWS cannot be opened

Check your network setup

•Make sure you are not using a phone cord or a crossover cable to connect the printer to the network.

•Make sure the network cable is securely connected to the printer.

•Make sure the network hub, switch, or router is turned on and working correctly.

Check the computer

Make sure the computer that you are using is connected to the network.

NOTE: To use the EWS, the printer must be connected to a network using either an Ethernet or a wireless connection. You cannot use the EWS if the printer is connected to a computer with a USB cable.

Check your Web browser

•Make sure the Web browser meets the minimum system requirements. For more information, see System requirements.

•If your Web browser uses any proxy settings to connect to the Internet, try turning off these settings. For more information, see the documentation available with your Web browser.

•Make sure JavaScript and cookies are enabled in your Web browser. For more information, see the documentation available with your Web browser.

158 Solve a problem