[sane-devel] Sharing a network scanner thru saned

[Thiago Milczarek Sayão]

Alexander,

Tried with airscan:

tsayao at CO85635:~$ scanimage -d 'airscan:e1:RICOH SP 3710SF (31317e)' >
test.pnm
Output format is not set, using pnm as a default.
scanimage: sane_start: Device busy

On the first run it took ~10 minutes and I killed the process. Further
tries generates "Device busy".

For some reason scanimage -L listed:

tsayao at CO85635:~$ scanimage -L
device `escl:https://172.18.15.247:443' is a Ricoh SP 3710SF (31317e)
flatbed scanner
device `escl:https://172.18.15.249:443' is a Ricoh SP 377SFNwX (cff831)
flatbed scanner
device `airscan:e1:RICOH SP 3710SF (31317e)' is a eSCL RICOH SP 3710SF
(31317e) ip=172.18.15.247
device `airscan:e0:RICOH SP 377SFNwX (cff831)' is a eSCL RICOH SP 377SFNwX
(cff831) ip=172.18.15.249
device `airscan:w2:XEROX Corporation WorkCentre 3345' is a WSD XEROX
Corporation WorkCentre 3345 ip=172.18.15.248

And then on subsequent tries, just:

tsayao at CO85635:~$ scanimage -L
device `airscan:e1:RICOH SP 3710SF (31317e)' is a eSCL RICOH SP 3710SF
(31317e) ip=172.18.15.247
device `airscan:e0:RICOH SP 377SFNwX (cff831)' is a eSCL RICOH SP 377SFNwX
(cff831) ip=172.18.15.249


Em qui., 21 de jan. de 2021 às 14:54, Alexander Pevzner <pzz at apevzner.com>
escreveu:

> Hi Thiago,
>
> On 1/21/21 8:05 PM, Thiago Milczarek Sayão wrote:
>
> > |Note: The device does not work using escl.
>
> Did you try sane-airscan instead of sane-escl?
> (https://github.com/alexpevzner/sane-airscan,
> https://download.opensuse.org/repositories/home:/pzz/)
>
> > |Since we have 530 stores, I would like to configure only 530 machines
> > (instead of 3000). So the idea is to install the Ricoh package on this
> > "central" machine and share with the others.
>
> Do you really need each of 3000 machines to have access to each of 530
> scanners?
>
> I guess, on each of the 530 stores you have one scanner and ~6 machines,
> connected through the local network.
>
> If you use eSCL protocol with the working backend, and client machine
> and scanner are on the same LAN, typically no configuration is required;
> scanner is automatically discovered by client computers via LAN.
>
> So in your situation, it would be better to rely on automatic discovery
> and configure 0 machines instead of 530 or 3000.
>
> I'm also concerned about technical possibility for a single computer to
> serve 530 scanners to 3000 clients. It can be quite noticeable load for
> a single computer.
>
> --
>
>         Wishes, Alexander Pevzner (pzz at apevzner.com)
>
>
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