Linux Scanimage Brother DS-640

scanimage_brother_ds_640.sh

# 1. Install official Linux drivers from Brother
#    e.g. https://support.brother.com/g/b/downloadtop.aspx?c=us_ot&lang=en&prod=ds640_us_eu_as
  
# 2. Install sane-utils (Debian)
sudo apt install sane-utils
  
# 3. Connect scanner, list available scanners
scanimage -L
# device `brother5:bus2;dev2' is a Brother DS-640 USB scanner

# Scan
#
# Note: scanning pabes in batch mode, using --batch
# did not work; the scanner reported no page in 
# the feeder after page 1...
scanimage --device='brother5:bus2;dev2' \
  --format=jpeg \
  --resolution=300 \
  --AutoDocumentSize=yes \
  --AutoDeskew=yes \
  --output-file=006.jpg