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Hi Guixers,

for your information:

in Arch Linux I read, that a HP Printer needs the programm
  "python-pillow" so that the scanner will work.

I installed it, but it didn't help.

Somebody else in Arch Linux said that HP Printer/Scanner will give 
trouble again and again, so he changed to a "brother" printer in order 
to get scanning work.

When I run some hp programms like "hp-scan" it says:

error: No device selected/specified or that supports this functionality.


"lsusb" shows, that my printer is connected.
Bus 003 Device 007: ID 03f0:2c12 HP, Inc Officejet J4680

why does than "hp-scan" say, there is no device?

So may be we are the solution a bit closer?

Gottfried