[Thinlinc-technical] thinlinc and scanners via usb

Peter Åstrand astrand at cendio.se
Thu Jun 17 23:17:00 CEST 2010

Hi! As far as I know, the RDP protocol does not allow scanner redirection. 
You need add on software to enable this, and you need to run the Microsoft 
RDP client on Windows hosts. So this solution does not work with ThinLinc.

Our goal is to have full TWAIN/SANE scanner support in future ThinLinc 
versions, but unfortunately we are not there yet.

We have however developed an interim solution for the TLCOS client only, 
where the scanning is done locally. The result is then available in the 
thin session via a redirected disk folder. This feature will be included 
in the upcoming 3.1.1 release. This solution does not allow you to set 
scan options at runtime (ie full TWAIN support), but if you are always 
scanning using the same settings, this should work fine.

Best regards,
Peter Åstrand

On Thu, 17 Jun 2010, Giuseppe Sacco wrote:

> Hi thinlinc experts,
> I am asked to check if it is possible to replace ten old workstations
> using thin clients. Main activities on these workstations are: reading
> and writing emails, using some server software via IE6, printing PDF
> documents, and using a DMS that require access via TWAIN to local
> scanners. Each scanner is connected via USB to one workstation, and scan
> at about 20 pages per minute, at 200dpi, black and white.
> I am wondering if I might use RDP and its USB over RDP feature. And I
> would like to know if this is feasible using thinlinc infrastructure.
> Thanks to all,
> Giuseppe
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Peter Åstrand		ThinLinc Chief Developer
Cendio AB		http://www.cendio.com
Wallenbergs gata 4
583 30 Linköping	Phone: +46-13-21 46 00

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