Comment 18 for bug 1816226

> apt purge hplip

Yes, I did that, it was part of my huge purge command.

Just to clarify: the file /usr/share/hplip/data/models/models.dat should also go away?

If that is gone, scanimage -d URI reports "no colorlaserjet_mfp_m278-m281 attributes found in /usr/share/hplip/data/models/models.dat"

If the file is present, scanimage -d URI reports "failed: Operation not supported" and the journal shows two puzzling messages:

> io/hpmud/jd.c 214: invalid uri model colorlaserjet_mfp_m278-m281 != HP_ColorLaserJet_MFP_M278-M281
> scan/sane/soapht.c 481: unable to open device hp:/net/colorlaserjet_mfp_m278-m281?ip=192.168.0.88

I will next try to install the plugin.