Question about Samsung SCX 4521F All-In-One Laser Printer

2 Answers

Problem scanning with samsung scx 4521f

I am reposting this problem with the hope that somebody will give assistance for free, even if i will not upgrade to Premium Assistance Account. i can't scan with samsung scx 4521f multi-function printer. the following error message appears:

samsung scx 4x21 is not connected on this machine. scanner device is not responding. please check that it is turned on and connected to the computer. cannot open device samsung scx 4521f.

the printer is connected to my pc notebook via a parallel to usb cable ( printer has a parallel port while pc has a usb port). all the necessary softwares and driver are correctly installed and updated.i can PRINT. but i can't use the SCAN function. the computer won't recognize the scanner. also the scanner icon on the taskbar keeps on flashing with a red cross on it. i tried uninstalling and reinstalling the drivers and software but to no avail. please i really need help.

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  • 5 more comments 
  • Loisboi Feb 05, 2008


    I am using a parallel to usb cable because the notebook has no parallel port. I will buy a usb to usb cable and try if it will solve the problem. Also, my OS is windows XP. Thank you for the solutions you've offered. I will try if finally the scanner will work.

  • Loisboi Feb 06, 2008

    a USB to USB cable solves it all. the machine is now perfectly working and the scan function is now working. thank you for all of your suggestions. A big thanks!

  • Anonymous Mar 05, 2008

    I have the same problem scanning feature does not work has the same error messages... I am connected parallel to parallel...drivers are installed properly...seems nothing with Smarthru 4 is working

  • sumaya shaik Jul 19, 2008

    please tell me were can i download the samsung scx4521f scanner

  • Anonymous Jul 19, 2008

    scanner software to download

  • Anonymous Mar 15, 2014

    The printer is making noise attempting to move the carridge but it's not moving

  • Anonymous Apr 01, 2014

    Samsung scx-3405 printer will not print when using computer. There appears to be no connection. Printer will print blan sheet of paper if I press start or wifi button on it



2 Answers

My connection is via a parallel to parallel cable, and I am also having a similar problem. I'm reading that usb to usb cable is the only way it will properly function. good luck with it!

Posted on Oct 20, 2008


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  • 6,966 Answers


Sorry to have missed your initial posting...

In any case, to my understanding, this particular printer is likewise capable of USB connection. Perhaps you can try connecting it pure USB and go through the installation again. this might simplify interface and communications between notebook and scanner/printer.

If for some reason you would want to retain Printer/Parallel to Notebook/USB, you need to check your Imaging Devices in the notebook's Device Manager and verify that all drivers are installed for the Samsung SCX-4521F. There should be no yellow or red marks. If there are or if the Samsung SCX-4521F instance is not present, you may need to reinstall using the Add Hardware Option in the Control Panel. You may need to manually select the imaging device/scanner. This holds true if you are using Windows XP.

If you are using Vista, you may need to download all the Vista drivers from the Samsung website. Further, pls be informed that to my knowledge, Vista has certain issues with USB ports. Microsoft has issued a patch/update specifically for this concern. It may be downloaded from here or here.

Hope this be of help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Posted on Feb 05, 2008

  • 1 more comment 
  • Louie  Role
    Louie Role Feb 05, 2008

    Hi again,

    Why not try parallel to parallel (LPT1) also aside from USB to USB rather than parallel to USB (with an adapter)?

  • Louie  Role
    Louie Role Feb 05, 2008

    Copy your move towards USB to USB. Will await developments at your convenience.


  • Louie  Role
    Louie Role Feb 06, 2008

    My compliments and am glad to be of assistance. I would appreciate if perhaps you can change the rating now to "FIXYA" as your concern has been settled.



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