Question about HP 4570C Flatbed Scanner

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HP 4570c scans totally black or bluish-green with vertical bars

Problems started out to be intermittent and I could solve it by unplugging the power source for 5 - 10 minutes and then restart the scanning. Now the unit will only scan very, very dark or totally black from a white document. I have been to the HP website and followed suggestions they offer, including the "homing" procedure outlined on this site. I have installed the newer version 2.0 software, still no improvement. I have ruled out electromagnetic problems because the scanner has been in the same location since 2004 and nothing has chaged at my desk. I even tried installing the software and connecting the scanner to a completely different model and brand computer; same problems. Great scanner, very reliable and good quality, until now.

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  • duendi Dec 08, 2008

    I too have had this problem since having to reconnect my scanner after moving my computer from one end of my office to another. I have several times tried reconnecting it following all of the directions to a "T" both in the users manual and online troubleshooting - all to no avail. I even cleaning the glass following the directions online. I had no problems whatsoever with the scanner previous to this. Haven't been able to use it in several months. Would appreciate any and all suggestions. Duendi

  • Anonymous Jan 16, 2009

    Exact same issue. Scans full black with vertical bars. Very annoying.

  • denwel7 Jan 24, 2009

    Have never had a problem before now. Now, no matter what I scan, be it text or picture, the result had been the bluish-green, now all black. Have tried reinstall, and all connections are fine, but to no avail.

  • Anonymous Mar 22, 2009

    At one point, I noticed some shadows on preview, but later with scanning or previewing, the entire page scanned came out pitch black.

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  • HP Master
  • 2,794 Answers

It could be one of two things:

1) The scanner isn't registering black or white during the initialization processing depending on what color it needs to get it started.

2) The CCD unit in the scanner could be failing which could explain why it was only working briefly before getting worse.

Posted on Nov 30, 2008

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