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#734 commandtodnp cups command filter not available for DNP DS620
Hello
I am trying to create a CUPS command file to be printed that will update the marker attributes and printer online/offline status using commands like ReportLevels and ReportStatus. However, I cannot find a "commandtodnp" filter (no mentioned in the ppd or available at /usr/share/lib/cups/filter) , that can interpret the CUPS printer commands.
Is there one available for ubuntu linux 20.04? I am using the CUPS+Gutenprint driver v5.3.3. I have a DNP DS620 printer.
My CUPS command file looks like this:
#CUPS-COMMAND
ReportLevels
Any assistance on this would be very helpful. Thank you.
Regards,
Karthika
On Wed, May 19, 2021 at 12:00:20PM -0000, kk123 wrote:
If there is no cupsCommands keyword in the PPD, why do you assume this
functionality exists at all?
That said, I did partially implement command support, but there wasn't a
good way to hook that up to gutenprint's PPD generator, and client
support was abysmal so I pretty much walked away from it.
But if you manually add this to your PPD, level reporting should work:
% Level reporting
cupsCommands: "ReportLevels"
cupsFilter: "application/vnd.cups-command 100 gutenprint53+usb"
%
I haven't implemented ReportStatus, as it doesn't add anything useful
beyond what's already in ReportLevels.
Incidently, all of this information is already sent to CUPS before/after
every print, so there's not really a need to directly issue the
ReportLevels commands; you can just query the cached marker attributes
directly via the CUPS API. Here's what my DS80 currently reports:
Attribute marker-colors #00FFFF#FF00FF#FFFF00
Attribute marker-levels 50
Attribute marker-low-levels 10
Attribute marker-high-levels 100
Attribute marker-message 56 native prints remaining on 8x12 media
Attribute marker-names 8x12
Attribute marker-types ribbonWax
Attribute marker-change-time 1620578750
Hi Solomon
Thank you for your response.
I see a "commandtodnp" filter available on MAC for the DNP DS620 driver, so I was wondering if there was an available filter I needed to be using with gutenprint.
The reason I was looking at using cupsCommands to report levels was mainly for the printer online/offline status. We need to know if the printer is actually connected, and the only way (that I could find) to discover this without prints being fired, was using a cupsCommand print job. The same problem exists if the ribbon or media is removed, we don't know that unless a print is actually fired. I was hoping to find that out in advance by using the cups commands.
I tried using the gutenprint53+usb , but it is a backend, rather than a filter, and the job fails since it can't find the filter in /usr/lib/cups/filter. Would copying it in the /usr/lib/cups/filter be a good idea? I am not sure about that, it might affect something else?
Thank you.
Regards,
Karthika
On Wed, May 19, 2021 at 11:20:07PM -0000, kk123 wrote:
That's supplied by DNP and unfortunately has nothing to do with
Gutenprint.
If you're trying to run this on the machine that has the actual printer
connected, the backend executable has extensive reporting/status
capabilities.
$ BACKEND=dnp-ds80 /usr/lib/cups/backend/gutenprint53+usb -sin
INFO: Printer Status: Idle (0)
INFO: Prints remaining in job: 0
INFO: Free Buffers: 2
INFO: Media Type: 8x12
INFO: Native Prints Available on New Media: 110
INFO: Native Prints Remaining on Media: 55
INFO: Half-Size Prints Remaining on Media: 55
INFO: Model: DS80
INFO: Serial Number: DS8Y0B007359
INFO: Firmware Version: DS80 1.30
INFO: Media Color Offset: Y 10 M 10 C 10 L 10
INFO: Media Class: 1
INFO: Media Lot Code: 37YGP891
INFO: Media ID: 0
INFO: Ribbon ID: 0000
INFO: 300 DPI Color Data (SD): DS80_300_0130.CWD (FC36)
INFO: 600 DPI Color Data (SD): DS80_600_0130.CWD (8D66)
INFO: Lifetime Counter: 9005
INFO: A Counter: 153
INFO: B Counter: 8992
INFO: P Counter: 0
INFO: M Counter: 53
INFO: Matte Counter: 53
Alternatively, a more generic subset of the data can be returned via JSON:
$ BACKEND_STATS_ONLY=2 BACKEND=dnp-ds80 /usr/lib/cups/backend/gutenprint53+usb
{
"backend": "DNP DS-series / Citizen C-series",
"version": "0.113 / 0.137-dnp3",
"timestamp": "2021-05-19 21:02:54",
"manufacturer": "Dai Nippon Printing",
"model": "DS80",
"serial": "DS8Y0B007359",
"firmware": "DS80 1.30",
"decks": {
"Roll": {
"status": "Idle",
"mediatype": "8x12",
"medialevel": "OK",
"medialevelnow": 55,
"medialevelmax": 110,
"counters": {
"lifetime": 9005
}
}
}
}
(You'll want to add SERIAL=.... if you have more than one printer in the system)
If the printer is unplugged or off, the command will error out, but
otherwise the status/state lines will report whatever the printer says
is going on.
Symlink it over. :)
Hi Solomon
Thank you for the detailed post, it is extremely helpful to see all these printer details coming directly from the backend.
I can see the levels instantly using the backend command you shared!!
I did try using the gutenprint53+usb backend as the filter, but I couldn't see the ReportLevels updated (I'm checking the printer-state-reason and marker levels in the printers.conf after running the cups command job).
I am trying to find a printer device/model independent way of checking printer on/off status and marker levels, and I thought printing a CUPS command job would facilitate that. I am doing this from an application (java) - that has access to the printer state from CUPS. If you do have thoughts about how I can check the printer status and marker levels independent of the printer model, it would be great to hear them!
Thank you so much, appreciate your quick response!
Karthika
Last edit: kk123 2021-05-20
Did you ever try pasting this into your PPD?
% Level reporting
cupsCommands: "ReportLevels"
cupsFilter: "application/vnd.cups-command 100 gutenprint53+usb"
%
(and yes, you can just copy or symlink the backend binary over to the filters directory)
Ticket moved from /p/gimp-print/bugs/730/
Recategorizing as feature request.