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* Re Scanner
@ 2022-08-20 13:28 Gottfried
  2022-08-20 13:41 ` (
  0 siblings, 1 reply; 4+ messages in thread
From: Gottfried @ 2022-08-20 13:28 UTC (permalink / raw)
  To: help-guix


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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

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^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Re Scanner
  2022-08-20 13:28 Re Scanner Gottfried
@ 2022-08-20 13:41 ` (
  2022-08-20 13:42   ` (
  0 siblings, 1 reply; 4+ messages in thread
From: ( @ 2022-08-20 13:41 UTC (permalink / raw)
  To: Gottfried, help-guix

Hi Gottfried :)

On Sat Aug 20, 2022 at 2:28 PM BST, Gottfried wrote:
> in Arch Linux I read, that a HP Printer needs the programm
>   "python-pillow" so that the scanner will work.

Guix is not like Arch; you don't need to install libraries to make a
program work.

> When I run some hp programms like "hp-scan" it says:
>
> error: No device selected/specified or that supports this functionality.

The problem is likely that you don't have the required nonfree driver
that the printer/scanner needs. Recall that one of the hplip programs
tried to install a nonfree driver (this functionality should ideally be
patched out, as Guix is a FSDG-compliant system; looks like it slipped
under the radar).

    -- (


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Re Scanner
  2022-08-20 13:41 ` (
@ 2022-08-20 13:42   ` (
  2022-08-20 13:57     ` (
  0 siblings, 1 reply; 4+ messages in thread
From: ( @ 2022-08-20 13:42 UTC (permalink / raw)
  To: (, Gottfried, help-guix

On Sat Aug 20, 2022 at 2:41 PM BST, ( wrote:
> Guix is not like Arch; you don't need to install libraries to make a
> program work.

(Unless there's a bug with the package.)

    -- (


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Re Scanner
  2022-08-20 13:42   ` (
@ 2022-08-20 13:57     ` (
  0 siblings, 0 replies; 4+ messages in thread
From: ( @ 2022-08-20 13:57 UTC (permalink / raw)
  To: (, Gottfried, help-guix

On Sat Aug 20, 2022 at 2:42 PM BST, ( wrote:
> (Unless there's a bug with the package.)

((Which is highly unlikely if tests are enabled for the package.))

    -- (


^ permalink raw reply	[flat|nested] 4+ messages in thread

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