ADF Orientation upside down for all backsides

[Nivalux]

Describe the bug When scanning pages in ADF duplex mode, then the backsite get's scanned, but it is upside down. It needs to be rotated 180°.

To Reproduce Steps to reproduce the behavior:

1. Put a page with text on both sides on the printer (A true ADF duplex printer)
2. Scan using ADF duplex mode
3. The resulting frontside is correct, but the backside is always upside down

Expected behavior Either the backside having the correct orientation or having an option, to always rotate backside pages

Client (please complete the following information):

• Browser: Vivaldi
• Version: 6.7

Server (please complete the following information):

• Docker version: v3.0.3

**Additional context**
I am using a Canon MB5150 printer