Patent ID: 8905515

Claim:
A liquid ejection apparatus comprising: a first head having a plurality of nozzles from which a first liquid including pigments is ejected; a second head having a plurality of nozzles from which a second liquid including no pigments is ejected; a cap device configured to selectively change a state between a capping state in which the cap device covers the plurality of nozzles of the first head and the plurality of nozzles of the second head, and an uncapping state in which the cap device does not cover the plurality of nozzles of the first head and the plurality of nozzles of the second head; a controller configured to: control the first head and the second head to perform (i) a first purging operation in which the first head ejects the first liquid and the second head does not eject the second liquid, and (ii) a second purging operation in which the second head ejects the second liquid and the first head does not eject the first liquid; and such that the state of the cap device is one of the capping state and the uncapping state; wherein the controller is configured to perform a certain combined-purging operation which at least two first purging operations and at least one second purging operation are performed in a period of the certain combined-purging operation, the number of times the at least two first purging operation are performed is greater than the number of times the at least one second purging operation is performed in the period of the certain combined-purging operation, and one of the at least two first purging operations is performed as the last purging operation in the period of the certain combined-purging; operation, and wherein the controller is configured to control the state of the cap device so as to be the uncapping state during the period of the certain combined-purging operation, operation and control the state of the cap device so as to be the capping state in periods before and after the period of the certain combined-purging operation.