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<p>Hi</p>
<p>I installed Ubuntu 20.04 on my PC and I try to get the scanner
run with xsane according the instructions of the wiki by
ubuntuusers.de. There may be several problems.</p>
<p>1. Following the instruction by the wiki firmware esfw52.bin is
installed. When I start xsane-Scan, there is following information
"Cannot start scanner. Fault when I/O process.</p>
<p>This was initially the main theme to be resolved.</p>
<p>2. Further I am now unsure if I use the correct firmware
esfw52.bin. The reason is misleading informations by
sane-project: <br>
</p>
<p>According to
<a class="moz-txt-link-freetext" href="http://www.sane-project.org/sane-backends.html#S-EPSON2">http://www.sane-project.org/sane-backends.html#S-EPSON2</a> my scanner
is unsupported. Cited:<br>
</p>
<p>
</p>
<table>
<tbody>
<tr>
<td>Perfection 3490 PHOTO</td>
<td>USB</td>
<td>0x04b8/0x0122</td>
<td><span color="#F00000">Unsupported</span></td>
<td>supported by the epkowa backend plus non-free interpreter</td>
</tr>
</tbody>
</table>
<p>
</p>
<p>According to
<a class="moz-txt-link-freetext" href="http://www.sane-project.org/sane-mfgs.html#Z-EPSON">http://www.sane-project.org/sane-mfgs.html#Z-EPSON</a> firmware
esfw51.bin is required and the status is good. <br>
</p>
<p>Cited: Perfection 3490 PHOTO USB 0x04b8/0x0122 <font
color="#90B000">Good </font>Requires firmware esfw51.bin</p>
<p>I did not find a source of the firmware esfw51.bin for my
scanner. <br>
</p>
<p>What citation is correct? Is the second citation
<a class="moz-txt-link-freetext" href="http://www.sane-project.org/sane-mfgs.html#Z-EPSON">http://www.sane-project.org/sane-mfgs.html#Z-EPSON</a> the
actual version, is it correct and what firmware is required. If it
is esfw51.bin, please give a source for this software.</p>
<p>Please first answer the second question. <br>
</p>
<p>The first item may be more complex, but if you have an idea, I
would like to hear it.</p>
<p>Yours thank you <br>
</p>
<p>wthiel<br>
</p>
<p><br>
</p>
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