[cups.general] Ink levels with application/vnc.cups-command

[Michael Sweet]

Tim Waugh wrote:
> Is it possible for native CUPS drivers to use the
> application/vnc.cups-command mechanism to report ink levels?  This file
> from gutenprint-5.0.0.99.1 suggests that it is, but I haven't had any
> luck getting it to work:
> 
> src/cups/commands/ReportLevels.cmd:
> ==>
> #CUPS-COMMAND
> #
> # This file tells the printer to report the ink/toner levels.
> #
> 
> ReportLevels
> <==
> 
> Is it currently possible to get ink level reports with the CUPS
> architecture?

Sort of, however I don't think any of the current drivers support
the "ReportLevels" command.

What's supposed to happen is for the drivers to set
printer-state-reasons values via STATE: messages, e.g.:

     STATE: +marker-low-warning

for a "low ink" warning.

Once we get drivers to implement ink level monitoring (of any kind),
we'll come up with attributes to track the exact levels, e.g.:

     ATTR: marker-levels=33,44,55,66 marker-names=cyan,magenta,yellow,black

-- 
______________________________________________________________________
Michael Sweet, Easy Software Products           mike at easysw dot com
Internet Printing and Document Software          http://www.easysw.com