[sane-devel] HP 7450c problem

Philip J. Hollenback phil at telemetry-investments.com
Fri Jul 22 15:46:35 UTC 2005

Hi Pablo,

I've been working with a 7450C and the ADF.  I haven't had any
problems with the ADF.

One thing you need to do is go to the Avision website and grab the
latest backed driver:


it has a lot of enhancements over the stock 1.0.15 avision driver.

How are you scanning with the ADF, command line or xsane?  On the
command line, you have to use '--source Automatic\ Document\ Feeder'
with the 1.0.15 driver or '--source ADF' with the newer driver from
the avision website to tell the driver to use the ADF.

Unfortunately in my case the latest driver does not work due to some
usb problems.  The maintainer (Rene) is aware of this and hopefully
there will be a fix soon.

Also there's a problem with the 7450C where when it goes to sleep it
can't be woken up.  Again, there should be a fix for this in the newer
driver, but I can't test it due to the usb problems.

I've cc'ed the sane-avision mailing list on this as well - that's the
best place to ask questions about these scanners.


On 07/22/05, Pablo Ares Gastesi wrote:
> Hello,
>     recently I purchased an HP 7450c scanner with ADF and XPA (for
> negatives and transparencies). Here is the information of my PC:
>    Operating system: Linux
>    Kernel version:
>    Distribution: Debian testing (codename etch)
>    Connection: USB, libusb version 0.1
>    Sane backends version: 1.0.15
>    Sane backend: avision
>    Sane frontends version: 1.0.13
>    Xsane version: 0.97
> The problem is that neither the ADF nor the XPA work. The ADF (option
> chosen in xsane) does not load the documents, while the XPA
> (transparency option in xsane) does not start the light of the XPA
> attachment, so no negative/slide scanning can be done.
>    I have tested the scanner with the HP software and everything works,
> regular scanning, the light of the XPA and the ADF loads all pages.
>    Any suggestions?
> Regards, Pablo Ares.
> Pablo Ares Gastesi. School of Mathematics, TIFR,
> Mumbai 400 005, INDIA
> pablo at math.tifr.res.in 	http://www.math.tifr.res.in/~pablo

Philip J. Hollenback
Telemetry Investments
phollenback at telemetry-investments.com

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