Question about HP Officejet Pro L7780 All-In-One InkJet Printer

4 Answers

HPL7780 and Linksys WRT54GS V7

Upon inputting the WEP password for a wireless network the printer states it is active on the network but instantly freezes and has to actually be reset by pushes the 6 and # key while unplugging and then reinserting the power cord. You can't even turn it off or unplug it to break the freeze. HP says it has something to do with the Linksys wireless router. Any clues? I know it won't hold a manually input IP address. It constantly resets to all zeros. Any word on what may fix this issue?

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  • mjbelville Apr 24, 2008

    I am having the same problem. I have the same Linksys router and the printer freezes everytime I connect to the wireless network. I am able to connect a network cable direct from my printer to the router and have no problems but as soon as I disconnect the printer freezes.

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Hi,

That usually happens when you are going to connect the printer PRO using the wireless. To avoid that problem, try connecting the Printer using the Manual Setting of the IP.

Solution
NOTE: If the router has an outdated or firmware that was not supplied by the manufacturer, update the router to the latest manufacturer-supplied firmware. Set a Manual IP address on the HP All-in-One

  1. Change the IP settings to Manual from the HP All-in-One.
    1. On the front panel of the HP All-in-One, press Setup .
    2. Press the left arrow button (HPL7780 and Linksys WRT54GS V7 - c01135026.jpg ) or the right arrow button (c01135027.jpg ) to select Network , and then press OK .
    3. Press the left arrow buttonHPL7780 and Linksys WRT54GS V7 - c01135026.jpgttp://i.fixya.net/uploads/images/c01135026.jpg" alt="c01135026.jpg" class="h_mi"HPL7780 and Linksys WRT54GS V7 - c01135027.jpge right arrow button (c01135027.jpg ) to select Advanced Settings , and then press OHPL7780 and Linksys WRT54GS V7 - c01135026.jpg
    4. Press the left arrow button (c01135026.jpg ) or the right arrow button (c01135027.jpg ) or the right arrow button (c01135027.jpg ) to select Manual , and then press OK .
  2. Set the IP settings from the Manual IP Settings menu using the following instructions. For this item... Do the following... IP Address Type a manual IP address on the same subnet, but outside of the DHCP range. Choose an IP address with the same first three digits as the assigned IP but a much higher fourth digit (between 1 and 254). For example, if the original IP was 192.168.0.1, assign the static IP to 192.168.0.200. Subnet Mask Do not change the Subnet Mask. Default Gateway Do not change the Default Gateway.
  3. Run the Wireless Setup wizard and try to associate the HP All-in-One to the wireless network.
Workarounds Connect the HP All-in-One via a Wired Network
  1. Disable Wireless Radio. FollHPL7780 and Linksys WRT54GS V7 - c01135026.jpgs to turn off Wireless Radio.
    1. On the front panel oHPL7780 and Linksys WRT54GS V7 - c01135027.jpgin-One, press Setup .
    2. Press the left arrow button (c01135026.HPL7780 and Linksys WRT54GS V7 - c01135026.jpg_mi ) or the right arrow button (c01135027.jpg ) to select Network , and then press OK .
    3. Press the left arrow button (c01135026.jpg ) or the right aHPL7780 and Linksys WRT54GS V7 - c01135027.jpgc01135027.jpg ) to select Advanced Settings , and then press OK .
    4. HPL7780 and Linksys WRT54GS V7 - c01135026.jpg_mi"> Press the left arrow button (c01135026.jpg ) or the right arrow button (c01135027.jpg ) to select Wireless Radio , and then press OK .
    5. Press the left arrow button (c01135026.jpg ) or the right arrow button (c01135027.jpg ) to select Off , and then press OK .
  2. Connect an Ethernet Cable to the RJ-45 connector at the back of the HP All-in-One. Connect the other end of the Ethernet cable to one of the LAN ports of the router.
  3. Turn off the HP All-in-One by pressing the Power button. Turn on thHPL7780 and Linksys WRT54GS V7 - c01155210.jpgne again.
Connect the HP All-in-One via Ad Hoc Wireless Network
  1. On the HP All-in-One control panel, press Setup .
  2. Use the down arrow button (c01155210.jpg Use the down arrow button (c01155210.jpg ) to highlight Wireless Setup Wizard , and press OK . The Setup wizard searches for available networks, and the color graphics display shows a list of detected wireless network names (SSIDs).
  3. Use the down arrow button (c01155210.jpg ) to highlight your wireless network SSID, and press OK . If any encryption is configured in the computer, the wizard will prompt for the WEP key.
  4. Highlight the letter or number on the visual keyboard, and press OK .
  5. Highlight Done on the visual keyboard, and press OK .
  6. Press OK again to confirm the settings. The HP All-in-One will try to connect to the wireless network. Once the wireless network is successfully setup, a message should appear stating that the connection has been successful.
  7. Press OK .
Source: www.hp.com

To get the technical document click here ==>> Document

Please let me know if the issue wont resolve the problem so that we can go ahead and do another workaround.


thank you.


adonscott

Posted on Jul 04, 2008

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Actually, the best thing to do is disable the ethernet. There is a firmware problem on this model printer. By disabling the ethernet the wireless will work just fine.

Posted on May 17, 2008

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Posted on Jan 11, 2008

What you want to do is first connect to the network by plugging it in to the lan (not wireless). Go through configuration, select wireless, and click temporarily connect through lan. Configure the wireless network there, and you'll be good to go.

Posted on Dec 26, 2007

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