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<TITLE>sane-devel: Re: More info on my HP Scanjet IIp prob.</TITLE>
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<META NAME="Author" CONTENT="Peter Kirchgessner (peter@kirchgessner.net)">
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<META NAME="Subject" CONTENT="Re: More info on my HP Scanjet IIp prob.">
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<H1>Re: More info on my HP Scanjet IIp prob.</H1>
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<!-- received="Sun Jan 16 10:51:41 2000" -->
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<!-- subject="Re: More info on my HP Scanjet IIp prob." -->
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<STRONG>From:</STRONG> Peter Kirchgessner (<A HREF="mailto:peter@kirchgessner.net?Subject=Re:%20More%20info%20on%20my%20HP%20Scanjet%20IIp%20prob.&In-Reply-To=<3881C075.9727853E@kirchgessner.net>"><EM>peter@kirchgessner.net</EM></A>)<BR>
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<STRONG>Date:</STRONG> Sun Jan 16 2000 - 04:58:29 PST
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<P>
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<LI><STRONG>Next message:</STRONG> <A HREF="0103.html">Oliver Rauch: "Re: 8-bit vs 12-bit"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0101.html">Oliver Rauch: "Re: xsane-0.50"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0077.html">Ben Laurie: "Re: More info on my HP Scanjet IIp prob."</A>
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<P>
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Ben Laurie wrote:
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<BR>
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<EM>>
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</EM><BR>
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<EM>> Peter Kirchgessner wrote:
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> > Hello Nicholas,
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</EM><BR>
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<EM>> >
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</EM><BR>
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<EM>> > it seems that the scanner does not respond to some of the very first
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</EM><BR>
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<EM>> > inquire commands. It recognized as an HP scanner because otherwise it
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</EM><BR>
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<EM>> > would have failed earlier.
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</EM><BR>
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<EM>> > Maybe it is a timing problem.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> This doesn't seem quite right coz...
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> > > [hp] scsi_inquire: sending INQUIRE
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</EM><BR>
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<EM>> > > [hp] scsi_new: sending TEST_UNIT_READY
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</EM><BR>
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<EM>> > > [hp] scsi_flush: writing 2 bytes:
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</EM><BR>
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<EM>> > > 0x0000 1B 45 .E
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</EM><BR>
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<EM>> > > [hp] scsi_flush: writing 7 bytes:
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</EM><BR>
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<EM>> > > 0x0000 1B 2A 73 32 35 37 45 .*s257E
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</EM><BR>
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<EM>> > > [hp] scsi_read: 0 bytes:
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</EM><BR>
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<EM>> > > [hp] scl_inq: malformed response: expected 's257d', got ''
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Here it appears to test for the version, and gets s257E instead of
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</EM><BR>
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<EM>> s257d, and then...
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> > > [hp] scl_errcheck: Can't read SCL error stack: Error during device I/O
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</EM><BR>
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<EM>> > > [hp] sanei_hp_device_new: SCL reset failed
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> erroneously goes on to treat it as a SCSI error.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Cheers,
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Ben.
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</EM><BR>
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<EM>>
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</EM><BR>
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<P>Hello,
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<BR>
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<P>it is a little bit more complicated. The .E is the <ESC>E reset-command
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<BR>
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which is send to the scanner. The next command sent is <ESC>*s257E
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<BR>
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(inquire current error stack). The writing routines do not report an
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<BR>
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error. The scanner then should respond with <ESC>*s257d<value>V with
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<BR>
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<value> as 0 or 1. But the read routine returned with 0 bytes read. That
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<BR>
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is unusual and is treated as an I/O-error. Therefore I thought it would
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<BR>
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be a timing problem.
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<BR>
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<P>--Peter
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<BR>
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<P><EM>> --
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</EM><BR>
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<EM>> SECURE HOSTING AT THE BUNKER! <A HREF="http://www.thebunker.net/hosting.htm">http://www.thebunker.net/hosting.htm</A>
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> <A HREF="http://www.apache-ssl.org/ben.html">http://www.apache-ssl.org/ben.html</A>
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> "My grandfather once told me that there are two kinds of people: those
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</EM><BR>
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<EM>> who work and those who take the credit. He told me to try to be in the
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</EM><BR>
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<EM>> first group; there was less competition there."
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</EM><BR>
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<EM>> - Indira Gandhi
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> --
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</EM><BR>
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<EM>> Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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</EM><BR>
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<EM>> To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20More%20info%20on%20my%20HP%20Scanjet%20IIp%20prob.&In-Reply-To=<3881C075.9727853E@kirchgessner.net>">majordomo@mostang.com</A>
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</EM><BR>
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<P><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:%20More%20info%20on%20my%20HP%20Scanjet%20IIp%20prob.&In-Reply-To=<3881C075.9727853E@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:%20More%20info%20on%20my%20HP%20Scanjet%20IIp%20prob.&In-Reply-To=<3881C075.9727853E@kirchgessner.net>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0103.html">Oliver Rauch: "Re: 8-bit vs 12-bit"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0101.html">Oliver Rauch: "Re: xsane-0.50"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0077.html">Ben Laurie: "Re: More info on my HP Scanjet IIp prob."</A>
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<EM>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Sun Jan 16 2000 - 10:53:05 PST</EM>
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