[cups] CUPS overwrites printers.conf

[Alex Korobkin]

These Attribute things are not from cups-browsed. It's CUPS itself, it
talks to the printer over IPP, printer talks back telling its toner levels,
CUPS saves them under printers.conf.  You can disable it per printer by
setting cupsIPPSupplies keyword to False in their PPDs.

I dunno why you're so upset about this.

The way to configure CUPS printers using printers.conf is not a supported
way. You'd better use lpadmin command, it can do anything printer.conf can
do.

On Fri, May 24, 2019 at 9:37 AM Helge Blischke <helgeblischke at web.de> wrote:

>
>
> > Am 23.05.2019 um 17:09 schrieb Robert Heller <heller at deepsoft.com>:
> >
> > At Thu, 23 May 2019 15:30:00 +0200 "The CUPS user discussion list." <
> cups at cups.org <mailto:cups at cups.org>> wrote:
> >
> >>
> >> Hello,
> >>
> >> i am a little despairing. This is my printers.conf *i want to
> configure*:
> >>
> >>
> ######################################START######################################
> >>
> >> # Printer configuration file for CUPS v2.2.7
> >> # Written by cupsd
> >> # DO NOT EDIT THIS FILE WHEN CUPSD IS RUNNING
> >>
> >> #Virtual Print-Queue
> >> <Printer PC-Room-Printer>
> >> UUID urn:uuid:bdaafacc-e917-312a-604b-1fda973daed1
> >> Info Warteschlange Printer
> >> Location Room
> >> DeviceURI papercut:file:/dev/null
> >> State Idle
> >> StateTime 1558614195
> >> ConfigTime 1545120668
> >> Type 4
> >> Accepting Yes
> >> Shared Yes
> >> JobSheets none none
> >> QuotaPeriod 0
> >> PageLimit 0
> >> KLimit 0
> >> OpPolicy default
> >> ErrorPolicy retry-job
> >> </Printer>
> >> #RICOH1
> >> <Printer ricohmpc4504ex01>
> >> UUID urn:uuid:275b9c5f-9539-3830-5f6f-9a08b5098972
> >> AuthInfoRequired none
> >> Info Backend Printer
> >> Location Room 3
> >> DeviceURI papercut:ipps://<URL>:443/ipp/print
> >> State Idle
> >> StateTime 1558611662
> >> ConfigTime 1553171061
> >> Reason media-empty-warning
> >> Type 4
> >> Accepting Yes
> >> Shared Yes
> >> JobSheets none none
> >> QuotaPeriod 0
> >> PageLimit 0
> >> KLimit 0
> >> OpPolicy default
> >> ErrorPolicy retry-job
> >> </Printer>
> >> #RICOH2
> >> <Printer ricohmpc4504ex02>
> >> UUID urn:uuid:b10d1c48-3a57-3a3b-40bf-56161ebbf0d7
> >> AuthInfoRequired none
> >> Info Backend Printer
> >> Location Room 2
> >> DeviceURI papercut:ipps://<URL>:443/ipp/print
> >> State Idle
> >> StateTime 1558614339
> >> ConfigTime 1558610508
> >> Reason media-empty-warning
> >> Type 4
> >> Accepting Yes
> >> Shared Yes
> >> JobSheets none none
> >> QuotaPeriod 0
> >> PageLimit 0
> >> KLimit 0
> >> OpPolicy default
> >> ErrorPolicy retry-job
> >> </Printer>
> >> #RICOH3
> >> <Printer ricohmpc4504ex03>
> >> UUID urn:uuid:ff1b9efc-d965-31bb-5618-60704e8e7e64
> >> AuthInfoRequired none
> >> Info Backend Printer
> >> Location Room 1
> >> DeviceURI papercut:ipps://<URL>:443/ipp/print
> >> State Idle
> >> StateTime 1558614224
> >> ConfigTime 1553181834
> >> Reason media-empty-warning
> >> Type 4
> >> Accepting Yes
> >> Shared Yes
> >> JobSheets none none
> >> QuotaPeriod 0
> >> PageLimit 0
> >> KLimit 0
> >> OpPolicy default
> >> ErrorPolicy retry-job
> >> </Printer>
> >>
> ######################################START######################################
> >>
> >> I stop cups, modify printers.conf and start cups. After restart all is
> >> looking fine. Few moments later printers.conf and printers.conf.O were
> >> modified by cups with additional options. But this issue hits only
> >> <Printer ricohmpc4504ex02> and <Printer ricohmpc4504ex03>.
> >
> > Are you running this under Ubuntu?  Is cups-browsed installed and
> running?
> > Are the ricoh printers network printers? If yes to all of that, what is
> > probably happening is that cups-browsed is using Avahi (Bonjour) to
> "helfully"
> > configure your printers for you.
> >
> > I *always* uninstall cups-browsed. It is a pain in the ass and causes
> far more
> > problems in an organized managed LAN. I guess it is fine for someone who
> is
> > generally clueless and/or who "wanders" from LAN to LAN (eg a traveling
> > laptop), but for a situation where there is a sys admin who has
> configured the
> > printers just so (for whatever reason) an who does not what the
> reconfigured
> > as per someone else's ideas, who might be trying to be helpful for a
> clueless
> > end-user.
> >
> >>
> >> Cups insert for example this directives to printer RICHO2 and RICHO3
> >> section:
> >>
> >> Attribute marker-colors \#000000,#00FFFF,#FF00FF,#FFFF00,none
> >> Attribute marker-levels 50,90,90,90,100
> >> Attribute marker-low-levels 10,10,10,10,10
> >> Attribute marker-high-levels 100,100,100,100,100
> >> Attribute marker-names Black Toner,Cyan Toner,Magenta Toner,Yellow
> >> Toner,staples
> >> Attribute marker-types toner,toner,toner,toner,staples
> >> Attribute marker-change-time 1558614327
> >>
> >> cups-waiting-for-job-completed  # "i dont want this option!
> >>
> >> RICHO1 ist not affected, but is the same model.
> >>
> >> I hope you can help.
> >>
> >> Best regards
> >>
> >> Micha
> >>
>
> Instead of completely disabling cups-browsed, you may use the
> BrowseFilter
> directive  in cups-browsed.conf to exclude these printers from being
> maintained by cups-browsed.
>
> Helge
>
> _______________________________________________
> cups mailing list
> cups at cups.org
> https://lists.cups.org/mailman/listinfo/cups
>


-- 
-Alex