Patent ID: 9469136
Filing Date: 2016-10-18
CPC Classification: B41J

Claim Text:
1. A liquid ejecting apparatus, comprising: a liquid ejecting head which is capable of ejecting a liquid; a carriage which is capable of moving reciprocally in a scanning direction which intersects a transport direction of a medium; a control unit which causes the liquid ejecting apparatus to perform bidirectional printing by causing the carriage to move reciprocally in a plurality of speed modes in which an ejection mode of the liquid ejecting head is the same and a movement speed of the carriage is different, and causing the liquid to be ejected from a nozzle of the liquid ejecting head in both an outward motion and a return motion of the carriage; a correction value acquisition unit which performs the bidirectional printing of a test pattern using a correction value which corresponds to one speed mode of the plurality of speed modes, acquires a correction value based on a printed result of the test pattern, and stores correction information containing information of the speed mode of when the test pattern is printed and the correction value in a storage unit; a correction unit which corrects an ejection timing of the liquid ejecting head according to the speed mode which is applied based on the correction information; and a power supply unit which is capable of selecting a first power supply which converts an alternating current from an alternating current power source to a direct current and supplies power, and a second power supply which supplies a direct current from a battery, wherein the plurality of speed modes contains a first power supply mode in which the movement speed of the carriage during the first power supply is set to a relatively high speed, and a second power supply mode in which the movement speed of the carriage during the second power supply is set to a relatively low speed in comparison to during the first power supply, wherein the correction value acquisition unit performs the bidirectional printing of the test pattern in one power supply mode of the first power supply mode and the second power supply mode, acquires a correction value based on a printed result of the test pattern, and stores correction information containing information of the power supply mode of when the correction value is obtained and the correction value in the storage unit, and wherein the correction unit obtains a correction value which corrects the ejection timing of the liquid ejecting head in the power supply mode which is applied based on the power supply mode which is applied and the correction information.