The Plustek OpticPro ST-24 should work out of the box as far as I know.
You just have to enable it since it's considered unstable. You can enable it
by editing the file /etc/sane.d/genesys.conf and changing this:

# Plustek OpticPro ST24
#usb 0x07b3 0x0601

to:

# Plustek OpticPro ST24
usb 0x07b3 0x0601


Tell me how it goes :)
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From [email protected]  Sat Jul  8 14:36:28 2006
From: [email protected] ([email protected])
Date: Sat Jul  8 14:37:25 2006
Subject: [sane-devel] HELP! Epson Perfection 4180 Photo
Message-ID: <[email protected]>

* <[email protected]>Hello all!

I have an Epson Perfection 4180 Photo USB Scanner that I am trying to use
with Ubuntu Breezy Badger.  I seemed to have gotten past all of the hurdles
listed in the various postings I've read, but have hit an issue for which I
cannot find any documentation.  I downloaded and installed the iScan package
from Avasys as described
here<http://www.unet.univie.ac.at/%7Ea9826090/en/projects/linux/hardware/epson-3170/>and
configured the sane conf files.  It appears that the scanner is being
recognized.

When I run Xsane, I get a choice of two available devices on the splash
screen: both are "Epson", but one is at epson:libusb:004:003 and the other
at **epkowa:libusb:004:003.  From what I've read, I've supposed to use
Epkowa, but I've tried both just in case.  After hitting OK, I get the main
Xsane windows (v 0.97).  When I click on either of the "Acquire Preview" or
"Scan" buttons, I get a dialogue box stating, "Failed to start scanner:
Invalid Argument".

In addition, If I try to execute scanimage from the command-line, I get the
following:

scanimage: sane_start: Invalid argument
scanimage: WARNING: read more data than announced by backend (0/2409629696)

iScan returns a similar error, a dialogue stating, "Could not send command
to scanner. Check the scanner's status".

Does anyone know how I can solve this problem?  I can send along more info
if you let me know what to look for.

Thanks much!
-Brandon
*
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From [email protected]  Sat Jul  8 15:05:21 2006
From: [email protected] (Girish Agarwal)
Date: Sat Jul  8 15:04:43 2006
Subject: [sane-devel] Brother MFC 7820N Scanner
Message-ID: <[email protected]>

Hi All,
         I have a brother MFC 7820N scanner which I would like to access/control
via Web (i.e from a web program written in PHP). My environment is Apache
server 2.x and PHP 5.x and everything is installed on a windows 2000 server.
I have checked with my Device Manufacturer who says that this particular
scanner uses TWAIN driver.
       I have some Questions which are as follows:-
       1) SANE API, is it only for Linux/Unix systems or it can be used for
windows Networks also. I could not find  a library for Windows Networks.
       2) I also searched for the Backend for my Scanner and Found that
Brother has contributed one for Linux. Again where do I get one for Windows?
       3) I am very novice in this area of development so please excuse my
question but, I am hoping to come across various scanners which I will have
to interface with my application, so is it better for me to look for a SANE
to TWAIN kind of interface for my application or try to focus my development
on TWAIn driver which this MFC is supposed to be compatible??? What I am
looking for really/ideally is that I should not have to make much
programming changes to get a SANE/TWAIN compatible scanner to interface with
my program.

Thanks,
Girish





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