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<H1>re-aligning? re-calibrating? an hp scanjet IIc</H1>
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<STRONG>From:</STRONG> Carlos Puchol (<A HREF="mailto:cpg@rocketmail.com?Subject=Re:%20re-aligning?%20re-calibrating?%20an%20hp%20scanjet%20IIc&In-Reply-To=&lt;20000117105452.19514.qmail@web2902.mail.yahoo.com&gt;"><EM>cpg@rocketmail.com</EM></A>)<BR>
<STRONG>Date:</STRONG> Mon Jan 17 2000 - 02:54:52 PST
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hello,
<BR>
<P>i am running out of sources here. since there are experts
<BR>
here, i am going to throw this up and would appreciate any
<BR>
help andor pointers.
<BR>
<P>i am running sane 1.0.1 with xsane (nice! btw) and gimp:
<BR>
<P>Vendor: HP Model: C1750A Rev: 3226
<BR>
<P>this scanner was running fine and now, after some moving and
<BR>
some period of rest in storage, it displays a &quot;phantom&quot; image
<BR>
slightly shifted from the original.
<BR>
<P>just to double check, went to windows and it happens
<BR>
there too, so i suspect it is a hardware problem
<BR>
regarding some sort of alignment or calibration.
<BR>
attached i am sending two small samples to illistrate.
<BR>
basically, strong color edges &quot;bleed&quot;
<BR>
<P>i played around a bit with gamma, and there are some
<BR>
settings that minimize this, but the image always sows
<BR>
some lack of &quot;depth&quot; - a contrast autostretch and/or hsv
<BR>
autostrectch always brings the bleeding back.
<BR>
<P>is this problem fixable in software?
<BR>
under linux?
<BR>
is it fixable at all?
<BR>
<P>the hewlett-packard site has very little info on these
<BR>
scanners (or on realigning or recalibrating them). i also
<BR>
search the web to no end about this issue. the h-p site
<BR>
does mention that one should &quot;lock&quot; the scanner head
<BR>
before moving it around, which i believe was not done when
<BR>
it was moved stored.
<BR>
<P>on a related issue, i just noticed that the windows scanning
<BR>
software, &quot;windows imaging, by kodak&quot;, would get a noticeably
<BR>
&quot;better looking&quot; picture, compared to &quot;autoenhance&quot; in xsane
<BR>
(which btw, itself enhances substantially to just plain scanning
<BR>
under linux, say with xscanimage without advanced options).
<BR>
there was some mention on a new gamma setting of 2.2 when i installed
<BR>
the h-p deskscan software (2.8). would this mean i should
<BR>
autoenhance and then move the gamma slider to 2.2 for best results?
<BR>
<P>by &quot;better&quot; i mean that a couple of images i acquired under windows
<BR>
improved very verly little with contrast autostrecth and/or
<BR>
hsv autostretch.
<BR>
<P>any and all help appreciated for both issues!
<BR>
<P>thanks a lot,
<BR>
<P>-carlos
<BR>
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