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  1. #1
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    Konica Minolta C287i prints random text

    Hello everybody!

    In our company we have a problem with random printing. It prints by itself and over night too.

    SKM_C257i21020315020.pdf

  2. #2
    Service Manager 10,000+ Posts
    Konica Minolta C287i prints random text

    Phil B.'s Avatar
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    Re: Konica Minolta C287i prints random text

    Quote Originally Posted by Mtrasa View Post
    Hello everybody!

    In our company we have a problem with random printing. It prints by itself and over night too.

    SKM_C257i21020315020.pdf
    ASCII code.. you have a corrupt print driver or the WRONG print driver installed

    what driver are you using?

    are you a trained tech?

  3. #3
    Service Manager 1,000+ Posts
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    Re: Konica Minolta C287i prints random text

    Phil is 100% correct here..you are sending true PS data to a PCL print driver..I have seen jobs like this run until the finisher get's to it's low limit..My guess is you used to send these jobs to HP devices with no problems..You need the download and install KM's PS driver (this is PS emulation, but works pretty well). E

  4. #4
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    Re: Konica Minolta C287i prints random text

    BTW the last 2 posts have been regarding machines that don;t seem to be available in the US (no results for C278i or 367)..Am I missing something? E

  5. #5
    Service Manager 1,000+ Posts Bix's Avatar
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    Re: Konica Minolta C287i prints random text

    Quote Originally Posted by Mtrasa View Post
    Hello everybody!

    In our company we have a problem with random printing. It prints by itself and over night too.

    SKM_C257i21020315020.pdf
    Your printer has a public IP. Someone, from anywhere in the world, is printing to your printer.


    Check the firewall or enable ip filtering on the printer.

  6. #6
    Service Manager 10,000+ Posts
    Konica Minolta C287i prints random text

    Phil B.'s Avatar
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    Re: Konica Minolta C287i prints random text

    Quote Originally Posted by Bix View Post
    Your printer has a public IP. Someone, from anywhere in the world, is printing to your printer.


    Check the firewall or enable ip filtering on the printer.

    then they are using the wrong print driver..

    frankly I don't see this being the case... i still go with the WRONG print driver.

  7. #7
    Field Supervisor 500+ Posts B0265's Avatar
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    Re: Konica Minolta C287i prints random text

    Quote Originally Posted by Bix View Post
    Your printer has a public IP. Someone, from anywhere in the world, is printing to your printer.


    Check the firewall or enable ip filtering on the printer.
    Or someone is trying to attack a router and use the printers ip-address:
    CVE-2018-14847 and Router Compromises (penetrate.io)

  8. #8
    Service Manager 1,000+ Posts Bix's Avatar
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    Re: Konica Minolta C287i prints random text

    Quote Originally Posted by Phil B. View Post
    then they are using the wrong print driver..

    frankly I don't see this being the case... i still go with the WRONG print driver.
    Strangers on the web don't know the printer driver, so they send files with the wrong driver. For a long time, I had a public IP for my office printer because I was waiting for the firewall. Every morning I found papers similar to those.
    Use the Shodan.io website. You will discover a lot of printers with a public ip and default administrator password.

  9. #9
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    Re: Konica Minolta C287i prints random text

    Do you know how hard it is to accidently put a printer into the DMZ and allow public access? This is not very likely, but I did see a local university that got hacked via port 25 and print jobs emptied every machine over the weekend..But the print jobs did not look like this..Those wingdings really point to a driver issue. E

  10. #10
    Service Manager 1,000+ Posts Bix's Avatar
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    Re: Konica Minolta C287i prints random text

    The problem is that many small businesses don't even know what a DMZ is. In germany we still have companies that prefer fax instead of email..
    So this doesn't surprise me. The doubt about the public IP arose immediately because the user says that the printer prints even at night, when there is no one in the office.

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