Patent ID: 9174452
Filing Date: 2015-11-03
Classification: B41J

Abstract:
1. A fluid droplet ejection device for ejecting fluid droplets of a plurality of fluid types, the device comprising: a print unit comprising a plurality of nozzle lines, each nozzle line comprising a plurality of nozzles generally aligned in a secondary scanning direction of the print unit, wherein all the nozzles of each nozzle line are configured to eject fluid droplets of a single one of the fluid types, the print unit being configured to eject the fluid droplets from the nozzles while moving in a primary scanning direction relative to a print medium; an ejection inspection unit configured to inspect fluid droplet ejection of one subset of the nozzles at a time, wherein each subset comprises at least one nozzle for each of the plurality of fluid types, wherein the nozzles of each subset are substantially aligned in the primary scanning direction; and a control unit, configured to: