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  1. #1
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    HP Designjet 500+ 42` Copy Quality Problem

    Hi , i ve got problem with HP 500+, it`s printing everything double. I ve check strip encoder and lubrication Pinch-Arm Mechanism. Carriage belt is ok . Please check attachment for exemple print. Any idea?

    Attached Files Attached Files
    I ve got fever: My English isn`t good, so please please forgive me any mistakes.

  2. #2
    Master Of The Obvious 10,000+ Posts
    HP Designjet 500+  42`  Copy Quality Problem

    blackcat4866's Avatar
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    Re: HP Designjet 500+ 42` Copy Quality Problem

    I'd replace the encoder strip. That's what it looks like to me.

    Have you attempted to clean the encoder? I've had some success with alcohol and a cotton pad. Anything stronger than alcohol will remove the silk-screened pattern. =^..^=

    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.


    blackcat: Master Of The Obvious =^..^=

  3. #3
    Senior Tech 250+ Posts
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    Re: HP Designjet 500+ 42` Copy Quality Problem

    Hmmmmmmmm.......

    I'd clean the encoder strip, but, my understanding is the encoder strip only tells the carriage where it's at. I noticed the Cyan printhead says Worn Out and the expiration date is 2014 as a status. Are you able to replace it?


  4. #4
    Service Manager 1,000+ Posts theengel's Avatar
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    Re: HP Designjet 500+ 42` Copy Quality Problem

    I would also check the bushings on the carriage itself. You didn't take those off, did you?

    Also check the spacer at the top of the carriage.


  5. #5
    Senior Tech 250+ Posts
    HP Designjet 500+  42`  Copy Quality Problem

    Kiran Otter's Avatar
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    Re: HP Designjet 500+ 42` Copy Quality Problem

    The carriage bushings can definitely be the issue. When they are inserted correctly they sit flush. These do not have to be removed, ever, really.

    The first image is the carriage bushing inserted correctly. The 2nd image is the bushing inserted incorrectly. The 3rd image is the rear bushing.

    bushing correct.jpgbushing wrong.jpgRear carriage bushing.jpg

    Kiran


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