sudo dpkg -i epson-inkjet-printer-stylus-photo-t50-series_1.0.0-1lsb3.2_amd64.deb
Selecting previously deselected package epson-inkjet-printer-stylus-photo-t50-series.
(Reading database ... 55182 files and directories currently installed.)
Unpacking epson-inkjet-printer-stylus-photo-t50-series (from epson-inkjet-printer-stylus-photo-t50-series_1.0.0-1lsb3.2_amd64.deb) ...
dpkg: dependency problems prevent configuration of epson-inkjet-printer-stylus-photo-t50-series:
 epson-inkjet-printer-stylus-photo-t50-series depends on lsb (>= 3.2); however:
  Package lsb is not installed.
dpkg: error processing epson-inkjet-printer-stylus-photo-t50-series (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 epson-inkjet-printer-stylus-photo-t50-series