[cups.general] Re: Showing job on printer display

[Michael Sweet]

Helge Blischke wrote:
> Michael Sweet wrote:
>> Paul Ortman wrote:
>>
>>> -----BEGIN PGP SIGNED MESSAGE-----
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>>>
>>> Michael Sweet wrote:
>>>
>>>> Ramiro Alba wrote:
>>>>
>>>>> Hello Everybody:
>>>>>
>>>>> I have been using lprng for long and now I am migrating to CUPS. It
>>>>> is fantastic, but I would like to know how to show on printer display
>>>>> the job (user an document) that it is currently printing. This is
>>>>> what I 'lprng' does and it is quite usefull.
>>>>
>>>> This should already happen for most PostScript printers; for non-PS
>>>> printers you need to have a driver that supports the necessary
>>>> commands (the CUPS DDK's rastertopclx driver supports them, for
>>>> example...)
>>>
>>>
>>> Forgive my ignorance, but do you mean that when I send a print job to
>>> (for instance) my HP Laserjet 4250 using the HP Laserjet 4250 PS ppd
>>> that on LCD of the printer should be displayed the username of the job
>>> submitter?  It currently does not do this -- instead it just says
>>> "Printing from Tray 2" or similar.  I've hacked around some of this by
>>> using Pykota's pre and post job hooks to call out to a little executable
>>> that changes the LCD.  If I could get away from that little executable
>>> I'd be quite pleased.
>>>
>>> So, I'm wondering, is there some configuration in either the PPD, CUPS,
>>> or on the printer itself that needs to be set to get this working?
>>
>>
>> As long as the PPD says that the printer supports PJL, then CUPS
>> will output the necessary PJL to set the display; in CUPS 1.2, we
>> actually set both the RDYMSG and job display string, which seems to
>> work on all of the HP printers in our lab (that have an LCD, that
>> is...)  CUPS 1.1.x just set the job display string, which *should*
>> work for the 4250...
>>
> 
> ... but HP printers - at least if used via a JetDirect card - tend to 
> keep the job display
> string only as long as they are receiving the job's data or (with some 
> models) interpreting
> the PostScript program. As soon as the bitmaps for all pages are 
> competed, the display string
> usually reverts to something like "PRINTING FROM TRAY 2" or similar.

On my LJ 4000 the message stays, even while printing, unless some
user intervention is needed (Tray 1 Manual Feed, etc.)

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