How to know ink level and start print head cleaning for an Epson XP-335 printer

[paul74]

Hello,

We use an Epson xp-335 in wifi from different PC's using Sparky 7.2 and 8 versions.

This printer use drvless.ppd set during installation via CUPS.

But we cannot display ink levels and start head cleaning process via "properties" panel.

I installed software Mtink under SparkyLinux 8, but it doesn't work, it reqquests user to be specified in lp group.
I added username" to lp and lpadmin but I always got same problem.

Mtink is installed via Synaptic.

Thank you in advance for your ideas and solutions.