Question about Dell 1720dn Laser Printer

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Firmwareupdate Dell 1720


I want to perform a firmwareupdate. I´ve found the needed file on the dell server. It´s called R156881.fls. Does anybody know what to do with this?

Please help, thanks

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  • tom252 Nov 18, 2008

    Hi, first of all I would like to thank you for trying to find a solution.

    The Service Tag of my Printer is 108ZTB1. I could not find the part of the site, where I have to put in this number. Could you try please? I´d be very thankful


  • tom252 Nov 25, 2008

    The webserver is only included in the 1720dn version with a network card. Unluckily I haven't got that one. :(
    I´ve tried to contact dell, but they haven't answered me yet.

  • fixyajf May 11, 2010

    Need the serial number/Service Tag?

  • fixyajf May 11, 2010

    Curious to know why you want to update the firmware? Unless the firmware update fixes a specific problem you are having, it generally not a good thing to do. Reason being is that if you encounter a problem updating the firmware it can make the printer useless and not work at all.


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You need to run the usbflash.exe file that should have come with the fls file. If not you can get it from a number of sources either DELL or Lexmark sites.
The usbflash file will ask for the .fls file when it is run.

However later you say you are trying to resolve a problem with a paper jam being indicated when there is none. If you take the toner and pckit out ...underneath them in the inside of the printer the middle a sensor. Its a tiny plastic bit that sticks up and the paper passes over. If this is stuck or stiff and not will indicate a paper jam permanently. If you cannot reposition it with your fingers or some will need a tech to fix it.

One other thing to check is the flag where the paper comes out. If you wiggle this and the error goes away then the flag is bent. You can try and bendit back into shape......otherwise it will need a tech to fix it.

Posted on Oct 08, 2009

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The .fls file (firmware file) can be updated via the embedded web server of the printer.

Posted on Nov 21, 2008

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I tried to download the firmware update your looking at. It appears that something is wrong with the download package Dell has on it website. Normally there would be an application included in the download to update the firmware or instructions on how to do it from the web-based configuration wizzard of the printer.

Under the "Fixes and Enhancements" section of the download, it lists this file as the "Intial Relase" which to me means it is the version of firmware that shipped with your printer. I doubt using it will fix any issue you are having. If you still want to proceed, here it the steps I've taken that you'll have to take:

I tried to contact Dell to get the download fixed, but they wont talk to me without the
serial number/Service Tag of the printer or account number that I requested from you in the above clarification request. The instruction for the download say that you are supposed to be downloading and "exe' file, but the link is downloading the "R156881.fls" file you are getting.

You could alternatively contact Dell yourself to resolve the download issue. Dell contact page:

Posted on Nov 18, 2008

  • fixyajf Nov 19, 2008

    Regretfully it turns out that I can't do it for you b\c then they would have your printer registered to me which would probably cause you problems in the future. You have to fill out the Customer Service Email Form (the link I gave you) and put in the service tage info. there. About 3/4 down the page there is a place for it. Hope this helps.

  • fixyajf Nov 25, 2008

    It's not possible for the end user to update the firmware on the non-network version (1720) of this printer. You'd have to send it in to Dell for repair. Sorry.


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I have the problem with the paper jam error, though there isn´t any paper jam. I´ve read in an other topic, that the firmware update should solve this.

Posted on Nov 13, 2008

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