Patent ID: 7651206
Filing Date: 2010-01-26
Classification: B41J

Abstract:
1. A method of forming a liquid pattern according to liquid pattern data on a receiving medium using a liquid drop emitter that emits a continuous stream of liquid from a nozzle that is broken into drops of predetermined volumes by the application of drop forming energy pulses comprising: associating a pixel area of the receiving medium with a nozzle and with a time interval during which a plurality of fluid drops ejected from the nozzle can impinge within the associated pixel area of the receiving medium; dividing the time interval into a plurality of subintervals; grouping the plurality of subintervals into blocks; defining each block as a printing block or a non-printing block; associating a drop forming energy pulse between each pair of consecutive blocks; associating a drop forming energy pulse between subintervals of each printing block; associating no drop forming energy pulse between each subinterval of each non-printing block; and causing drops to be emitted from the nozzle based on the associated sequence of drop energy forming pulses and wherein the liquid pattern is formed on the receiving medium of print drops formed of liquid emitted during subintervals associated with printing blocks and liquid emitted during subintervals associated with non-printing blocks is formed into non-print drops and captured before reaching the receiving medium.