follow-up (and problems) about: recommendation for all-in-one printer?

[Doug McGarrett]

On 11/6/20 8:45 AM, Liam Proven wrote:
> On Thu, 5 Nov 2020 at 20:11, M. Fioretti <mfioretti at nexaima.net> wrote:
>> [...] and of how I made the scanner work here:
>>
>> https://alioth-lists.debian.net/pipermail/sane-devel/2020-November/038507.html
> Comment:
>
> «
> sudo add-apt-repository ppa:sane-project/sane-git
> sudo apt-get update
> sudo apt-get upgrade
> sudo apt autoremove
> sudo apt install libsane libsane-common sane-utils
> »
>
> That should be apt-get full-upgrade.
>
> `apt upgrade` is the equivalent of `apt-get upgrade`. It installs new
> versions of existing packages but it will not add packages or
> additional dependencies.
>
> `apt full-upgrade` is the equivalent of the old `apt-get
> dist-upgrade`. If a new version needs a new dependency or library or
> something, it will do it.
>
> Use `full-upgrade`. It does a more thorough job.
>
> There is no point doing `autoremove` *before* installing new software.
> Do it afterwards, if at all. It's not really necessary every time,
> only if apt tells you obsolete packages are left.
>
>> so I will not repeat them here. Any suggestion on how to debug the
>> printer issue is obviously welcome.
> Unplug and/or turn off the printer.
> Remove *both* copies.
> Reboot.
> Try adding or auto-detecting the printer again.
>
>
I don't know if this will help, since I'm using an rpm 
system--OpenSUSE-TW, but I too
had a lot of headache trying to get the scanner to work. This was 
finally the fix(es):
Make sure to download and install the available s/w from Epson. If you 
don't have
a file called epkowa.conf in your /sane.d directory, get it somewhere 
and add it.
It is REQUIRED! Modification to that is shown below. You will have to be 
super user
to modify the file. If you are working from a super-user version of your 
file manager,
you should be able to modify the file(s) with kate. Don't forget to save.
On your aio printer, set a fixed ip address. (I use 192.168.1.26 on my 
Epson WP-4530.
The printer manual will tell you how to do that.)  In epkowa.conf 
uncomment, if not already
done, usb and scsi. Uncomment the line that starts with net and insert 
the fixed ip that you have
installed on the printer. (This was my problem solver.)
The following were set up automatically, but if not, try these things:
In a file called /epson.conf, uncomment scsi EPSON and scsi "EPSON SC" 
also uncomment usb.
In the file /epson2.conf, uncomment scsi EPSON and usb, and uncomment 
net and put in your
printer fixed ip address. Uncomment net autodiscovery.
In a file /epsonds.conf there should be an uncommented line, usb.
Good luck!  --doug