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  1. #1
    Trusted Tech 50+ Posts Ingersoll's Avatar
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    HP Laserjet M4345 output blurry

    Prints and copies are blurry, changed toner/drum w/ no change. Any ideas?


  2. #2
    Dangerous with Tools 1,000+ Posts
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    HP Laserjet M4345 output blurry

    possible causes

    1.) paper (more common problem than you might think, I bring my own paper when image problem is involved)

    2.) Fuser related problem. Rule out the fuser by performing an engine test. (Recommend removing formatter first)

    3.) Blow out entire paper path with compressed air, especially laser scanner area.

    4.) Transfer Roller

    5.) Laser scanner

    6.) Formatter


  3. #3
    Trusted Tech 50+ Posts Ingersoll's Avatar
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    Thanks

    Thanks for the hints, I'll check them out.


  4. #4
    Master Of The Obvious 10,000+ Posts
    HP Laserjet M4345 output blurry

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    Re: HP Laserjet M4345 output blurry

    I just came across this today. Poorly lubricated fixing film was dragging down the motor speed. All I did was clean and re-lubricate the heater surface. Only 20K on the refurbished fuser. =^..^=

    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 =^..^=

  5. #5
    Service Manager 10,000+ Posts
    HP Laserjet M4345 output blurry

    JustManuals's Avatar
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    Lightbulb Re: HP Laserjet M4345 output blurry

    This Parts & Service Manual can now be purchased for $12.77 and downloaded immediately after payment from:


    Just Manuals, The Internet's largest selection of manuals ~ Instant Downloads


    Paul@justmanuals.com



  6. #6
    Service Manager 100+ Posts
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    Re: HP Laserjet M4345 output blurry

    I'll go along with prntrfxr and blackcat and say change the fuser. Weird as it sounds, I've seen more than a few refurbished fusers cause fuzzy prints.


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