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<TITLE>sane-devel: Re: re-aligning? re-calibrating? an hp scanjet IIc</TITLE>
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<META NAME="Author" CONTENT="Peter Kirchgessner (peter@kirchgessner.net)">
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<META NAME="Subject" CONTENT="Re: re-aligning? re-calibrating? an hp scanjet IIc">
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<H1>Re: re-aligning? re-calibrating? an hp scanjet IIc</H1>
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<STRONG>From:</STRONG> Peter Kirchgessner (<A HREF="mailto:peter@kirchgessner.net?Subject=Re:%20re-aligning?%20re-calibrating?%20an%20hp%20scanjet%20IIc&In-Reply-To=<38837040.43EC06B6@kirchgessner.net>"><EM>peter@kirchgessner.net</EM></A>)<BR>
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<STRONG>Date:</STRONG> Mon Jan 17 2000 - 11:40:48 PST
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<P>
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<LI><STRONG>Next message:</STRONG> <A HREF="0124.html">Rene Rebe: "New Avision AV630CS backend!"</A>
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<UL>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0122.html">Peter Kirchgessner: "Re: Problem with SCSI Scanner on Irix 6.2"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0120.html">Carlos Puchol: "re-aligning? re-calibrating? an hp scanjet IIc"</A>
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<P>
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Hello Carlos,
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<BR>
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<P>I also suppose it is a hardware problem which can not be fixed by
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<BR>
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software. The HP ScanJet IIc does not support a calibrate command. But
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<BR>
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if it is really a hardware problem, it would not help either.
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<BR>
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The sample images look like the carriage is not moving continuosly.
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<BR>
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Please have a look at the carriage while it is scanning. If it is
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<BR>
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jumping, cleaning the parts which fix the carriage may help. Maybe the
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<BR>
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mirror on the carriage must be fixed too.
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<BR>
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<P>--Peter
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<BR>
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<P>Carlos Puchol wrote:
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<BR>
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<EM>>
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</EM><BR>
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<EM>> hello,
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> i am running out of sources here. since there are experts
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</EM><BR>
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<EM>> here, i am going to throw this up and would appreciate any
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</EM><BR>
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<EM>> help andor pointers.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> i am running sane 1.0.1 with xsane (nice! btw) and gimp:
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Vendor: HP Model: C1750A Rev: 3226
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> this scanner was running fine and now, after some moving and
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</EM><BR>
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<EM>> some period of rest in storage, it displays a "phantom" image
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</EM><BR>
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<EM>> slightly shifted from the original.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> just to double check, went to windows and it happens
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</EM><BR>
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<EM>> there too, so i suspect it is a hardware problem
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</EM><BR>
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<EM>> regarding some sort of alignment or calibration.
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</EM><BR>
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<EM>> attached i am sending two small samples to illistrate.
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</EM><BR>
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<EM>> basically, strong color edges "bleed"
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> i played around a bit with gamma, and there are some
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</EM><BR>
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<EM>> settings that minimize this, but the image always sows
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</EM><BR>
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<EM>> some lack of "depth" - a contrast autostretch and/or hsv
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</EM><BR>
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<EM>> autostrectch always brings the bleeding back.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> is this problem fixable in software?
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</EM><BR>
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<EM>> under linux?
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</EM><BR>
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<EM>> is it fixable at all?
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</EM><BR>
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<EM>>
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</EM><BR>
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<snip>
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<BR>
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<PRE>
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--
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Peter Kirchgessner
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WWW: <A HREF="http://www.kirchgessner.net">http://www.kirchgessner.net</A>
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e-mail: <A HREF="mailto:peter@kirchgessner.net?Subject=Re:%20re-aligning?%20re-calibrating?%20an%20hp%20scanjet%20IIc&In-Reply-To=<38837040.43EC06B6@kirchgessner.net>">peter@kirchgessner.net</A>
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<P><P><P>--
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Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20re-aligning?%20re-calibrating?%20an%20hp%20scanjet%20IIc&In-Reply-To=<38837040.43EC06B6@kirchgessner.net>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0124.html">Rene Rebe: "New Avision AV630CS backend!"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0122.html">Peter Kirchgessner: "Re: Problem with SCSI Scanner on Irix 6.2"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0120.html">Carlos Puchol: "re-aligning? re-calibrating? an hp scanjet IIc"</A>
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