For a discovered printer,information that has been changed is reset after reboot.

[Helge Blischke]

Richard Olsen wrote:

> So I did a lot of changing and cutting and pasting and rebooting and
> didn't learn much of anything.  I then decided to edit files
> printers.confg.O and printers.confg.  In each of the files I deleted
> everything related to the color printer and the fax, but left the stuff
> for the parallel connected printer and the PDF printer, and then I
> rebooted.
> 
> After the reboot, in file printers.confg.O what I had left there was still
> there plus information for the color printer (but not the fax).  The first
> few records for the color printer were:
> 
> <DefaultPrinter HP-Color-LaserJet-CM1312nfi-MFP>
> Info Hewlett-Packard HP Color LaserJet CM1312nfi MFP
> Location gwp3
> MakeModel HP Color LaserJet cm1312nfi MFP hpijs pcl3, 3.10.2
> DeviceURI hp:/usb/HP_Color_LaserJet_CM1312nfi_MFP?serial=00CND896S5L2
> 
> In the printers.confg file was the stuff I had left plus information for
> the color printer and the fax.  The first few records for the color
> printer were:
> 
> <Printer HP_Color_LaserJet_CM1312nfi_MFP>
> Info Automatically setup by HPLIP
> Location
> MakeModel HP Color LaserJet CM1312 MFP Series Postscript (recommended)
> DeviceURI hp:/usb/HP_Color_LaserJet_CM1312nfi_MFP?serial=00CND896S5L2
> 
> Notice that the only thing in common between the two snippets is
> DeviceURI.  So do you suppose that both files were set up properly by CUPS
> and then HPLIP modified (incorrectly) printers.confg??  If so, then
> changes will always be lost after a reboot.
> 
>> Richard,
>>
>> This sounds like your Linux distribution is doing something funny for USB
>> queues...
>>
>>
>> On 2013-01-07, at 3:15 PM, Richard Olsen <olsenra at comcast.net> wrote:
>>
>> > When the system boots up, it discovers my attached printer and sets
>> > default information. If I change some of this information, such as
>> > printer name, location, device driver, etc., the changed information is
>> > lost when I reboot the system. It seems to me that this information
>> > should be retained on reboot. In fact, on an earlier release of
>> > cups/hplip and an earlier operating system, those changes were
>> > preserved.
>> >
>> > Is there a flag someplace that I can set to cause the changes to
>> > persist?
>> >
>> > Linux Mint 9 xfce
>> > HPLIP 3.12.11
>> > CUPS 1.4.3
>> > HP Laserjet CM1312nfi MFP Color Printer - usb attached
>> > _______________________________________________
>> > cups mailing list
>> > cups at easysw.com
>> > http://lists.easysw.com/mailman/listinfo/cups
>>
>> _________________________________________________________
>> Michael Sweet, Senior Printing System Engineer, PWG Chair
>>

Can it be that in your system configuration hplip's hp-probe utility is 
called at system startup time?

Helge