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<TITLE>sane-devel: HP 7400c info</TITLE>
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<META NAME="Author" CONTENT="EdHamrick@aol.com (EdHamrick@aol.com)">
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<META NAME="Subject" CONTENT="HP 7400c info">
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<H1>HP 7400c info</H1>
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<!-- received="Tue May 1 05:07:15 2001" -->
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<!-- sent="Tue, 1 May 2001 08:14:44 EDT" -->
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<!-- name="EdHamrick@aol.com" -->
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<!-- subject="HP 7400c info" -->
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<!-- id="18.c1e095b.282002b4@aol.com" -->
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<STRONG>From:</STRONG> <A HREF="mailto:EdHamrick@aol.com?Subject=Re:%20HP%207400c%20info&In-Reply-To=<18.c1e095b.282002b4@aol.com>"><EM>EdHamrick@aol.com</EM></A><BR>
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<STRONG>Date:</STRONG> Tue May 01 2001 - 05:14:44 PDT
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<P>
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<LI><STRONG>Next message:</STRONG> <A HREF="0005.html">Curious Forestweaver: "Driver Status, Vuego Brisa 640 USB."</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0003.html">stef: "Re: New backend: UMAX 1220P sane'ification take 1"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0006.html">Oliver Neukum: "Re: HP 7400c info"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0006.html">Oliver Neukum: "Re: HP 7400c info"</A>
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<HR NOSHADE><P>
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<P>
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I just got an HP 7400C (2400 dpi flatbed) and traced the commands
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<BR>
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that it uses. It appears that the scanner is built by Avision, and that
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<BR>
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the commands are almost identical to those used by the HP 5300C
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<BR>
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and Minolta Scan Dual.
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<BR>
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<P>The 7400C VID is 0x03f0 and the PID is 0x0801.
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<BR>
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<P>The SCSI Inquiry string is in lower case, and is:
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<BR>
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<P> "hp scanjet 7400c "
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<BR>
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<P>It uses the same scsi-over-usb encapsulation that the
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<BR>
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Minolta Scan Dual and HP 5300C use. It isn't possible
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<BR>
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to talk to the scanner using scanner.c, since it needs to
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<BR>
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be able to read a bulk endpoint, write a bulk endpoint
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<BR>
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and read an interrupt endpoint. It would sure be nice
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<BR>
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if someone could finish the kernel scsi->usb driver
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<BR>
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for Avision scanners. It would also be nice if this
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<BR>
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scsi->usb driver worked with SCL HP scanners,
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<BR>
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Epson scanners, and Acer scanners. I have all the
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<BR>
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technical information needed to do this, and if someone
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<BR>
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is willing to finish the driver I'd be happy to give them
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<BR>
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the technical information I have on this.
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<BR>
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<P>Regards,
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<BR>
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Ed Hamrick
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<BR>
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<P><PRE>
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--
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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:%20HP%207400c%20info&In-Reply-To=<18.c1e095b.282002b4@aol.com>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0005.html">Curious Forestweaver: "Driver Status, Vuego Brisa 640 USB."</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0003.html">stef: "Re: New backend: UMAX 1220P sane'ification take 1"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0006.html">Oliver Neukum: "Re: HP 7400c info"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0006.html">Oliver Neukum: "Re: HP 7400c info"</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>Tue May 01 2001 - 05:11:27 PDT</EM>
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