[sane-devel] Follow-up on Part 2 of: how to configure/scan with an Epson Xp-4100 printer/scanner

[Thierry Huchard]

Le 2020-12-08 10:59, M. Fioretti a écrit :
> On Sat, Nov 07, 2020 17:33:03 PM +0000, Brian Potkin wrote:
>> On Thu, 5 Nov 2020 at 18:51, M. Fioretti <mfioretti at nexaima.net> 
>> wrote:
>> 
>> > - but now... the printer part does not work anymore. I have installed
>> >   the Epson driver from their website, removed and reinstalled the
>> >   printer, but nothing gets printed.
>> 
>> Installing a vendor printer driver is likely the issue. See
>> 
>> https://wiki.debian.org/CUPSDriverlessPrinting
> 
> Hello list, and my apologies for taking so long to answer. Getting
> anything done with the mental and logistic mess created by the
> pandemic is not easy.
> 
> About the scanner: it works now, thanks to your suggestions, but in a
> messed up environment, so to speak. When I try to print or scan, the
> system reports two printers, or two scanner, as you can see in the
> attachment if the list server allows it. Simple-scan sees Epson
> XP-400_Series and Epson XP-4100_Series (USB 1), and two printers are
> listed, EPSON_XP_4100_Series-USB-1 and EPSON_XP_4100_Series-USB_1_
> 
> In both cases, only the second device works. Scanning with (command
> built with your help, see original thread):
> 
> scanimage -d
> 'imagescan:esci:usb:/sys/devices/pci0000:00/0000:00:12.2/usb1/1-6/1-6:1.0'
> 
> works fine.
> 
> What bugs me, is that IIRC the number of devices depends on whether
> the printer is on, off or idle when the computer boots, or vice-versa
> 
> What next? I mean, I can print and scan but would of course like to
> 
> a) clean up this confusion, and be sure I am using both printer and
> scanner at the best of its capabilities...
Hi Marco,

To scan them, I advise you to disable the backend that you do not use

lists the scanners and backends that support them
$ scanimage -L

To disable a backend, you just have to comment it in the file 
/etc/sane.d/dll.conf or in the folder /etc/sane.d/dll.d/xxxx

Thierry

> 
> b) possibly... attach the device as is to the USB port of my modem, so
> it becomes accessible to my hwhole home network, if this doesn't mean
> to run it at lower resolution, or similar.
> 
> Marco