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  1. #1
    printer won't print b&w even when selected
    rcronin's Avatar
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    Dec 20, 2006
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    New Eng
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    Specs:
    MacBook white, 2.0 Intel Core 2 Duo Pro, 2 GB RAM, 13" screen
    printer won't print b&w even when selected
    I have a mystery.

    I have the same hardware as last month, but now it works differently.

    I have a Macbook and am printing to an HP deskjet 940c. I can't get it to print in B&W even when it's selected in the print dialog box. I can get the same printer to do B&W from my PC. When I go to the printers utilities it to check the ink level (the cartridge was just refilled) it says there is an error and it can't determine the ink levels. The printer's utilities dialog box shows the color one with a little ink and the B&W graph is just empty.

    I have deleted and reinstalled the drivers several times, shutdown, rebooted multiple times.

    I attempted to use Utiltities>Printer Set Up, but there's nothing there.

    Any help?

    What I am trying to print is a grayscale document from InDesign. But no matter what I do, it prints in (bad) color.

    I have printed a document from TextEdit and it prints in B&W. Quite strange...

    Thank you!
    Becky
    Web & Graphic Designer, LLL Leader, teacher (in my previous life; pre-kids) and Mama to my two daughters (who think the Apple booty is theirs)

  2. #2
    printer won't print b&w even when selected
    chscag's Avatar
    Member Since
    Jan 23, 2008
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    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    This may have more to do with the refilled cartridge you're using. (I'm assuming it's not the more expensive HP factory cartridge) If the software "thinks" the BW cartridge is empty, the result will be a mix of colors.

    I have had similar problems with older HP DeskJet printers even in Windows but usually was able to implement a work around. I don't know of a work around for using the 940C with a refilled cartridge. TextEdit prints OK because it does not check ink levels.

    One reason why I still keep an older model HP LaserJet around - for those fast grey scale or BW jobs I need to print. No fuss.

    Regards.

  3. #3
    printer won't print b&w even when selected
    rcronin's Avatar
    Member Since
    Dec 20, 2006
    Location
    New Eng
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    423
    Specs:
    MacBook white, 2.0 Intel Core 2 Duo Pro, 2 GB RAM, 13" screen
    that makes sense. It's been refilled a few times, maybe I've passed the sweet spot and this is it for now.

    Thank you!
    Becky
    Web & Graphic Designer, LLL Leader, teacher (in my previous life; pre-kids) and Mama to my two daughters (who think the Apple booty is theirs)

  4. #4
    printer won't print b&w even when selected
    cwa107's Avatar
    Member Since
    Dec 20, 2006
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    Lake Mary, Florida
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    15" MBP, Core i7/2GHz, 8GB RAM, 480GB Crucial M500 SSD
    It might not be a bad idea to check HP's website and see if they have an updated driver for it, as well.
    Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!

    https://youtu.be/KHZ8ek-6ccc

  5. #5
    printer won't print b&w even when selected
    rcronin's Avatar
    Member Since
    Dec 20, 2006
    Location
    New Eng
    Posts
    423
    Specs:
    MacBook white, 2.0 Intel Core 2 Duo Pro, 2 GB RAM, 13" screen
    The font drivers that I found were quite a few years old. The newest one I found was from 2006.

    I had seen a webpage somewhere that described how to delete your drivers, there were several locations on the HD. But I can't find that now. I thought it was on Apple's website. I'm wondering if I haven't properly deleted the old driver.

    I also tried printing the document from Preview and it still printed in color. So annoying!

    Could this have happened during a software update? I can understand why it is happening now, when all the hardware is exactly the same. grrr.
    Becky
    Web & Graphic Designer, LLL Leader, teacher (in my previous life; pre-kids) and Mama to my two daughters (who think the Apple booty is theirs)

  6. #6
    printer won't print b&w even when selected
    harryb2448's Avatar
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    Nov 28, 2007
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    Nambucca Heads Australia
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    iMac i5 2.7GHz, 16GB memory, OS 10.10.5
    Further to csschag's post, when the cartridge has been refilled several times, the sensor on the front of the cartridge may well fail giving one of two responses. On e is printing in colour, the second is repeatedly telling you there is no black cartridge installed when obviously there is.

    Toss in a new black cartridge and see how you go?

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