Ubuntu 18.04 LTS Epson scanner Perfection 4490 Photo

[Grizzly]

27 June 2019  at 5:20, diemkae wrote:
Re: Ubuntu 18.04 LTS Epson scanner  (at least in part)

>My Epson 4490 scanner works fine using the iscan software from Epson under
>16.04.6 (LTS) but cannot now be accessed under 18.04.2 LTS - error message
>like: cannot send commands to the scanner.  Check scanner status.

>When this problem arose, I installed 16.04 as a dual boot on this hardware
>(a vintage Dell Tower Dimension 9100, Intel Pentium(R) 4 CPU 3.00GHz CPU, 4
>GB RAM, etc.).  The 4490 scanner works fine when I boot 16.04, but fails as
>described in this thread under 18.04.

>18.04 seems to have broken something that the Epson driver/iscan uses. 
>Maybe it's something in the sane pkg?  The version of sane in the 16.04 boot

It's been a while but IIRC, 

https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1728012

helped me out, iScan worked as normal user, Simple Scan never really worked for 
me