[Printing-architecture] IPP(-over-USB) scanners - How to distinguish them from printers

[Michael Sweet]

Perhaps I wasn't clear enough; I meant the IPP USB devices that do not implement the IPP part... :) You can expect a 4xx response (usually 404 Not Found) if you try to POST to /ipp/print.


> On May 11, 2015, at 10:41 PM, Till Kamppeter <till.kamppeter at gmail.com> wrote:
> 
> On 05/11/2015 11:39 PM, Michael Sweet wrote:
>> The non-IPP USB scanners will not respond to a Get-Printer-Attributes request.
>> 
> 
> And IPP-over-USB devices without print functionality, like these stand-alone scanners?
> 
>   Till
> 

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Michael Sweet, Senior Printing System Engineer, PWG Chair