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  1. #1
    Technician
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    MX4070 Scan Quality NG but copies OK

    Hi guys

    Has anyone seen this: MX4070 scan quality has gone bad in the last 6 weeks, but copies are totally fine??

    A 64-5 printout scanned in shows the horizontal lines fading in and out with a pitch of about 15mm and the lines above & below it the fading is offset slightly so it seems like a screening issue.

    It had a similar (but not same) issue 6 weeks ago where light originals scanned really patchy and the fix was to do the factory reset and Viola!! It came good instantly.

    A factory reset hasn't made a difference this time and every scan setting has been tried to see if anything made a difference.

    The only settings that almost make an acceptable difference are 600dpi Tiff & 600dpi JPEG (but you can still tell it is there) - 600dpi pdf and almost all other settings make no difference. 600dpi PDF A /1b (Compact Ultra Fine w/ no OCR) is half ok ish.

    I am trawling through the manuals looking for block diags to show why copy & scan would be different but in the meantime thought i would throw this out to you guys to see if anyone has experienced this before.sample.pdf

    Cheers
    muppet is as muppet does!

    Jimbob

  2. #2
    Field Supervisor 500+ Posts
    MX4070 Scan Quality NG but copies OK

    mansart's Avatar
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    Re: MX4070 Scan Quality NG but copies OK

    Sorry I'm not quite understanding the issue.....

    Are you referring to the line running down the 11" edge?
    scan sample.JPG

    If so adj 48-1

  3. #3
    Technician
    MX4070 Scan Quality NG but copies OK

    EasyRider's Avatar
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    Re: MX4070 Scan Quality NG but copies OK

    If the problem is as mansart is showing with the arrow, try selecting "Actual size" button when printing. On either side of the scan you are seeing the edge of the paper if another selection is used.

  4. #4
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    Re: MX4070 Scan Quality NG but copies OK

    Thanks for the replies mansart & easyrider

    The issue is on the horizontal lines having a regular fadeout pattern as per Sample_Update.jpg
    muppet is as muppet does!

    Jimbob

  5. #5
    Technician
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    Re: MX4070 Scan Quality NG but copies OK

    You have cleaned the optics and each side of the lens unit ?


    Sent from my iPhone using Tapatalk

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