cups 1.1.23: get Printer-Status via API ...

[Helge Blischke]

bFoe wrote:
> 
> Try to get printer status infos ("cover-open", "media-needed", etc.) via cups 1.1.23 API (RedHat 9 + Fedora core 2 / Printer  Kyocera FS-920).
> 
> The function works like the check_printer_state () in backend/ipp.c.
> 
> cupsDoRequest (...) returns a valid response. But content of this response is not like expected.
> 
> ippFindAttribute (response, "printer-state-reasons", IPP_TAG_KEYWORD);
> 
> always returns one entry (num_values == 1): either a "none" (if the queue is up) or a "paused" (stopped the printer) in
> values[0].string.text.
> 
> Until now I'm not able to get the other infos ("cover-open" [if the cover is open], "media-needed" [if no media in tray], etc.).
> 
> With browser admin GIU (localhost:631) you also can't see the "cover-open" etc. ...
> 
> Don't know, where the problem is located:
> (1) wrong API - function / parameter call
> (2) cups does not support this functionality in general
> (3) cups server / printer (parameter) communication problem
> 
> Any suggestions? - Thanks in advance!
> 
> Regards
> 
> Bernd.

These attibutes are "officially" defined only for native IPP printers.
Printers driven by other backends usually do not offer such status
queries
(except perhaps USB printers, but as I have none ...).

Helge

-- 
Helge Blischke
Softwareentwicklung
SRZ Berlin | Firmengruppe besscom
http://www.srz.de
tel: +49 30 75301-360