Liquid ejection apparatus

Abstract

A liquid ejection apparatus includes: an ejection head that ejects a liquid from a nozzle; a cap that can seal an opening of the nozzle; an absorber that is disposed in the inside of the cap; a first ejection unit that allows to perform a first ejection toward the cap for maintenance of the nozzle; a suction unit that sucks the liquid from the cap; a second ejection unit that allows to perform a second ejection toward the cap for supplementing the liquid to the inside of the cap, before the suction; and a history managing unit that manages information on an accumulated ejection amount of a moisturizing component of the first ejection, wherein the second ejection unit allows to perform the second ejection on a condition based on the information.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described with reference to the accompanying drawings, wherein like numbers reference like elements.

FIG. 1 is a schematic perspective view showing a whole configuration of a liquid ejection apparatus.

FIG. 2 is a partially exploded side view showing a peripheral configuration of a cap.

FIG. 3 is a block diagram showing an electrical configuration of a liquid ejection apparatus.

FIG. 4 is a flowchart showing a process related to a drawing operation.

FIG. 5 is a flowchart showing a process related to nozzle maintenance at the time when a main power is turned off.

FIG. 6 is a flowchart showing a process related to a drawing operation in a modified example 1.

Claims

1. A liquid ejection apparatus comprising: an ejection head that ejects a liquid from a nozzle;a cap that can seal an opening of the nozzle;an absorber that is disposed in the inside of the cap; a first ejection unit that allows to perform a first ejection toward the cap for maintenance of the nozzle;a suction unit that sucks the liquid from the cap;a second ejection unit that allows to perform a second ejection toward the cap for supplementing the liquid to the inside of the cap, before the suction; anda history managing unit that manages information on an accumulated ejection amount of a moisturizing component of the first ejection,wherein the second ejection unit allows to perform the second ejection on a condition based on the information.

2. The liquid ejection apparatus according to claim 1, wherein the liquid ejection apparatus includes a plurality of the nozzles and the caps provided for each one of a plurality of liquid types, andwherein the second ejection unit sets an ejection amount of a moisturizing component of the second ejection for each of the liquid types.

3. The liquid ejection apparatus according to claim 1, wherein the second ejection unit allows to perform the second ejection right before a main power is turned off.

4. A liquid ejection apparatus comprising: an ejection head that ejects a liquid from a nozzle;a cap that can seal an opening of the nozzle;an absorber that is disposed in the inside of the cap; a first ejection unit that allows to perform a first ejection toward the cap for maintenance of the nozzle;a suction unit that sucks the liquid from the cap;a second ejection unit that allows to perform a second ejection toward the cap for supplementing the liquid to the inside of the cap, before the suction; anda history managing unit that manages an accumulated time of drawing operations,wherein the second ejection unit allows to perform the second ejection on a condition based on the accumulated time.

5. The liquid ejection apparatus according to claim 4, wherein the liquid ejection apparatus includes a plurality of the nozzles and the caps provided for each one of a plurality of liquid types, andwherein the second ejection unit sets an ejection amount of a moisturizing component of the second ejection for each of the liquid types.

6. The liquid ejection apparatus according to claim 4, wherein the second ejection unit allows to perform the second ejection right before a main power is turned off.