[cups.development] Talk to printer before a job in CUPS model

[Michael Sweet]

On Jul 6, 2011, at 10:56 PM, keens312 wrote:
> Hi Michael,
> 
> 
> Is there a chance to send a query command and receive its feedback before processing the job?
> 
> More info about the context:
> Our CUPS driver work in this way: PDF->Our filter->port monitor->backend
> 
> Our printer has multiple trays, each tray expects unique page order and orientation. So the CUPS driver needs to know what setting is on the printer firmware.
> 
> Is this possible to implement in CUPS environment, and how? in filter or port monitor?


Your filter can send commands to the printer and read back responses from the backend.

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Michael Sweet, Senior Printing System Engineer, PWG Chair