Getting a printer on DHCP allows for it to automatically identify the network (IPV4, Subnet, Default Gateway) and receive a new IP Address if it hasn't receive one. This could be due to network changes or reservations of the original IP Address of the printer.
HP A3/A4 Enterprise Printers
1. Please click the 
button at the top right hand corner of the Home Page.
2. Select the Ethernet tab along the left hand side.
3. Select the Settings Cog Icon on the top right hand side of the Ethernet tab.
4. Select Ethernet as shown below.
5. Select TCP/IP.
6. Select IPV4 Settings.
7. Please select Config Method and select DHCP as shown below. Please ensure that you click OK to apply the settings. To double check this, please click back and select Config Method again to make the machine is set to DHCP.
8. Verify the IP address has changed by navigating back to the Ethernet information menu.
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HP E4 A4 Machines
1. Please click the button at the top right hand corner of the Home Page.
2. Select the Ethernet tab along the left hand side.
3. Select the Settings Cog Icon on the top right hand side of the Ethernet tab.
4. Select Ethernet as shown below.
5. Select TCP/IP.
6. Select IPV4 Settings.
7. Please select Config Method and select DHCP as shown below. Please ensure that you click OK to apply the settings. To double check this, please click back and select Config Method again to make the machine is set to DHCP.
8. Verify the IP address has changed by navigating back to the Ethernet information menu.
