[cups] CUPS overwrites printers.conf

[Micha Ballmann]

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>.

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