Re: Scanning Problem HP4620 , Ed Greshko.

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On 3/3/19 10:37 PM, Ger van Dijck wrote:
> For me this is an enigma because a Wifi communication must be present ; So the only
> problem must be the the scandevice  is not requinised or the scandriver is not installed ! 

One other thing to check.

With the HP4620 on the network run

scanimage -L

the important thing is that this command uses Bonjour (which use mDNS, or Multicast Domain
Name System)  to discover devices on the network.

If, and I tested this on my HP 8710, if Bonjour is disabled in the printer's web interface
then it will not be detected as a scanner.

This also answers my own question about how the URI is determined at least in one case

If I have Bonjour enabled on my printer I get 2 devices.

device `hpaio:/net/HP_OfficeJet_Pro_8710?hostname=hp' is a Hewlett-Packard
HP_OfficeJet_Pro_8710 all-in-one
device `hpaio:/net/hp_officejet_pro_8710?ip=192.168.1.166&queue=false' is a
Hewlett-Packard hp_officejet_pro_8710 all-in-one

If I disable Bonjour I only get 1 device

device `hpaio:/net/HP_OfficeJet_Pro_8710?hostname=hp' is a Hewlett-Packard
HP_OfficeJet_Pro_8710 all-in-one

I'm guessing that the single entry is as a result of installing the printer/fax/scanner
under hplip.  But I've not yet determined where that entry comes from.

-- 
Right: I dislike the default color scheme Wrong: What idiot picked the default color scheme
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