two local CUPS databases? Where is my config stored?

Charles Smith cts.private at
Wed Apr 10 10:29:36 UTC 2013

I see in /etc/cups/ppd/HP_LaserJet_P4015.ppd lots and lots of lines - many of them with unicode
values - for "duplex", like:

*DefaultHPOption_Duplexer: True
*HPOption_Duplexer True/Installed: ""
*HPOption_Duplexer False/Not Installed: ""
*UIConstraints: *HPOption_Duplexer False *Duplex DuplexNoTumble
*UIConstraints: *HPOption_Duplexer False *Duplex DuplexTumble
*DefaultDuplex: DuplexNoTumble
*Duplex None/Off (1-Sided): "
    <</Duplex false>> setpagedevice"

on and on.
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