[colord] Dye Sub Printer Profiling

[Christopher Rosado]

Hi,

I have a problem with applying ICC profiles with several dye sub printers (DNP, Mitsi, Sinfonia) and hoping someone can offer a little insight. I’m running a headless Debian Buster CUPS 2.3.1-11./Gutenprint 5.3.4/Colord 1.4.3-4 server. 

Colord recognizes the profiles I’ve added and I’m able to add profiles to the device:

# colormgr get-devices
Object Path:   /org/freedesktop/ColorManager/devices/cups_Dai_Nippon_Printing_DS620
Owner:         root
Created:       December 18 2020, 01:41:55 PM
Modified:      December 18 2020, 01:41:55 PM
Type:          printer
Enabled:       Yes
Embedded:      No
Model:         Dai Nippon Printing DS620
Vendor:        Dai Nippon Printing
Serial:        gutenprint53+usb://dnp-ds620/DS6C7B008377
Format:        ColorModel.MediaType.Resolution
Scope:         temp
Colorspace:    rgb
Device ID:     cups-Dai_Nippon_Printing_DS620
Profile 1:     icc-0ad7a262b5bc126934cabd22cdb64d79
               /usr/share/color/icc/colord/DS620_cAM.icc
Profile 2:     icc-92e07f02e3b0674f3e864cea712cdd00
               /usr/share/color/icc/colord/DS620_Metallic_Ultra.icm
Profile 3:     icc-ef43a0b1365e00c754e58c91db8a2a7d
               /usr/share/color/icc/colord/DS620_Pearl_Plus.icm
Profile 4:     icc-c791789a09fe3b73da84a2eed909e785
               /usr/share/color/icc/colord/DS620_Metallic_Plus.icm
Metadata:      OwnerCmdline=/usr/sbin/cupsd -l  


In my tests, I have changed the default ICC from DS620_cAM.icc to DS620_Metallic_Ultra.icm, which should significantly increase saturation, but see no difference in output.

 CUPS error_log:
d [18/Dec/2020:09:45:09 -0500] cupsdCreateProfile(job_id=0, allow_networking=1) = NULL
D [18/Dec/2020:09:45:09 -0500] Calling FindDeviceById(cups-Dai_Nippon_Printing_DS620)
D [18/Dec/2020:09:45:09 -0500] FindDeviceById failed: org.freedesktop.ColorManager.NotFound:device id \'cups-Dai_Nippon_Printing_DS620\' does not exist
D [18/Dec/2020:09:45:09 -0500] Using profile ID "Dai_Nippon_Printing_DS620-Gray..".
D [18/Dec/2020:09:45:09 -0500] Calling CreateProfile(Dai_Nippon_Printing_DS620-Gray..,temp)
D [18/Dec/2020:09:45:09 -0500] Created profile "/org/freedesktop/ColorManager/profiles/Dai_Nippon_Printing_DS620_Gray__".
D [18/Dec/2020:09:45:09 -0500] Using profile ID "Dai_Nippon_Printing_DS620-RGB..".
D [18/Dec/2020:09:45:09 -0500] Calling CreateProfile(Dai_Nippon_Printing_DS620-RGB..,temp)
D [18/Dec/2020:09:45:09 -0500] Created profile "/org/freedesktop/ColorManager/profiles/Dai_Nippon_Printing_DS620_RGB__".
I [18/Dec/2020:09:45:09 -0500] Registering ICC color profiles for "Dai_Nippon_Printing_DS620".
D [18/Dec/2020:09:45:09 -0500] Calling CreateDevice(cups-Dai_Nippon_Printing_DS620,temp)
D [18/Dec/2020:09:45:09 -0500] Created device "/org/freedesktop/ColorManager/devices/cups_Dai_Nippon_Printing_DS620".
D [18/Dec/2020:09:45:09 -0500] Calling /org/freedesktop/ColorManager/devices/cups_Dai_Nippon_Printing_DS620:AddProfile(/org/freedesktop/ColorManager/profiles/Dai_Nippon_Printing_DS620_Gray__) [soft]
D [18/Dec/2020:09:45:09 -0500] Calling /org/freedesktop/ColorManager/devices/cups_Dai_Nippon_Printing_DS620:AddProfile(/org/freedesktop/ColorManager/profiles/Dai_Nippon_Printing_DS620_RGB__) [soft]
D [18/Dec/2020:09:45:09 -0500] Calling FindDeviceById(cups-Dai_Nippon_Printing_DS620)
D [18/Dec/2020:09:45:09 -0500] FindDeviceById failed: org.freedesktop.ColorManager.NotFound:device id \'cups-Dai_Nippon_Printing_DS620\' does not exist.


Thanks,
—Chris Rosado

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