Question about HP DesignJet 4520PS InkJet Plotter Printer

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We have a HP Designjet 4520ps plotter that is having the error message 79.04 According to HP this is a firmware error so we decided to try to update the firmware. We downloaded everything we could find including the latest firmware file ( When we got to the plotter we tried to FTP the new file to the plotter, but we could not get the FTP to work with a .FWM file. Next we used the HP website and they advised us to use a USB memory stick and plug it straight into the plotter, but there isn't any USB slots on the plotter. Lastly we tried using the inbuilt web function. HP says you should open up the settings page and click on the "Update Firmware" button, however there isn't any update firmware button on the http pages.\r\n Does anyone have any ideas how we can either FTP the .FMW file or if there is a different way of going about this whole procedure?

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  • d26pclan3 Mar 29, 2011

    Thanks Seeker5211. I cannot use the solution that you suggested as there is no "firmware update" button on the settings tab for me to click on.

    I posted on the HP web forum too as you suggested. Hopefully between this forum and that one I might be bale to find a solution.



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Dear sir/madam,

in this hp designjet 4520, this error comes up :error code 24:10. when i enter it, in the service manual it shows: Broken bag detected in Ink Cartridge. but it doesn

Posted on Jul 18, 2011

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When the printer comes up with an error code on the front panel, we may have to perform the service test(s) related to the error code. Sometimes when we enter into service/diagnostic mode and try to perform a test, the printer may come up with system error 79:04 (non-continuable generic error). When this occurs in diagnostic mode, it is not likely possible to analyze it by pressing front panel keys (e.g., up arrow and cancel); the printer will likely be hung/stuck with the error. Solution To overcome this issue, power down the printer and then ensure that no data cable is connected to the printer (Network/USB/Fire Wire) before powering it back on. For proper use of the diagnostic menu, the printer should be in a stand-alone state (only connected to power). Once it is confirmed that the printer is in stand-alone mode, then enter back into service/diagnostic mode and perform the test(s) required.

Posted on Mar 25, 2011

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This is what I got from

How to update your printer's firmware using the Embedded Web Server:
- Download the firmware file to a location on your computer's hard disk. Make a note of the location.
- Browse to the downloaded file and doubleclick the file.
- In the "Winzip Self-Extractor" window choose a location to extract the files to or note the default location, then select "Unzip".
- Connect to the printer using the Embedded Web Server.
- Click on the settings tab.
- Click on "firmware update" and follow the instructions.
- Once the firmware has been updated, the printer will reboot automatically.

If that isn't working for you, try this link - and look at the left side of the page for FORUMS. I've had very good luck going there to get answers.

Posted on Mar 25, 2011

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