xsane configuration

I’m using leap 42.3 with KDE Plasma 5.8.7. When starting xsane, version 0.998, the scan resolution is always 75 dpi. I tried to change that, however, without success. I changed the setting to my preference and saved the setting. I changed it in the file ~/.sane/xsane/Epson:ME-401_XP-300_400Series.drc. All that failed. When restarting xsane the resolition always fell back to 75 dpi. I also couldn’t find anything in /etc/sane.d.
Can anyone help, please.

I do not think this question has anything to do with the way these forum are to be used.

This will be moved to Applications and is CLOSED for the moment.

Moved from How to use the Forums and open again.

It might depend on the SANE backend or choosing compatible DPI values for your scanner. For example, I have a Brother DCP-7055 with the following config (first few lines shown)…

"XSANE_DEVICE_RC"
"Brother:DCP-7055"
"xsane-version"
"0.998"
"mode"
"Black & White"
"resolution"
150
"source"
"FlatBed"
"brightness"
0

As you can see it’s set to 150 DPI, but I can change that as required from the front-end (eg simple-scan or xsane), and the settings are persistent.