[filmscanners] Re: Help needed for PhotoSmart S20

["Arthur Entlich" <artistic-1@shaw.ca>]

I no longer own my S20, but as I recall the only user initiated
calibration process available is for the reflective (print) feature, as
Bob suggests.

The most likely cause for the problems you are having are:

1) The mirror might be out of sequence with the scanning cycle.  I don't
recall the exact process for resequencing it, but it involves running
the three  different cycles (slide/neg/reflective) a time or two, I
believe with the scanner disconnected from the USB interface, after also
removing the  power connector for several minutes and doing the process
wit the scanner upside down.  Make sure the clamshell is properly
closed.  This problem also usually shows up as some green or red
fringing on the scan image.

2) Dirty mirror or light path can be carefully cleaned using the squeeze
bulb

3) Light bulb is failing and too dim or no longer color accurate.  These
  cold cathode bulbs are pretty long lasting bit can eventually fail.

Art

Robert E. Wright wrote:

> Just what problem are you having, that prompts you to recalibrate the
> Photosmart scanner. What are you scanning (prints, negatives, or slides)?
> The calibration procedure (with the white card) only applies to print
> scanning, otherwise the scanner is self calibrating.
>
> I have used an early S10 since it was new and it still works fine. I never
> considered it appropriate to scan prints because better flatbed scanners are
> so much less expensive. The biggest problem I've ever heard of with this
> scanner was due to mode changes, where mechanical movement is involved. I
> strongly believe it should be left in the negative strip mode and never
> changed. You can scan negatives and unmounted positives in this mode and
> never have to go through the internal movements to reposition the mirror and
> tractor apparatus.
>
> Bob Wright
>
> ----- Original Message -----
> From: "Özcan Þiþman" <ozcan.sisman@karel.com.tr>
> To: <rew@impulse.net>
> Sent: Monday, September 09, 2002 10:45 PM
> Subject: [filmscanners] Help needed for PhotoSmart S20
>
>
> Hi,
>
> I'm new to this list and I'm hoping I can get some help about a problem I
> have with my HP PhotoSmart S20. I've been using this scanner for amateur
> stuff
> at home happily until recently when I noticed that my scans were far from
> satisfactory. So, I decided to calibrate the
> scanner, hoping this might improve my scans. The calibration procedure
> aborted with an error saying, "A scanner error has been detected while
> calibrating the lamp. Please refer to your HP PhotoSmart S20 Photo Scanner
> Basics guide for help in cleaning the scanner". I cleaned the scanner and
> ran the calibration again only to get the same error message. I've tried
> several times to clean and calibrate with no luck. Is there any way I can
> fix this problem? I would really appreciate any suggestions or advice.
>
> Thanks
> Ozcan
>
>
>
>
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