Liquid jetting apparatus

摘要

A liquid jetting apparatus includes a liquid jetting head having a liquid jetting surface in which a first nozzle row and a second nozzle row are formed, each of the first nozzle row and the second nozzle row including a plurality of nozzles aligned in a predetermined direction, a cap member configured to be in a close contact with the liquid jetting surface to cover the first and second nozzle rows, a liquid discharge section connected to the cap member, a liquid guiding member accommodated in the cap member, and a control unit configured to control the liquid jetting head to jet a liquid from each of the first and second nozzle rows. First and second liquid receiving grooves extending in the predetermined direction are formed in a facing surface of the liquid guiding member configured to face the liquid jetting surface.

主权项

1. A liquid jetting apparatus comprising:
a liquid jetting head having a liquid jetting surface in which a first nozzle row and a second nozzle row are formed, each of the first nozzle row and the second nozzle row including a plurality of nozzles aligned in a predetermined direction; a cap member configured to be in a close contact with the liquid jetting surface to cover the first nozzle row and the second nozzle row; a liquid discharge section connected to the cap member; a liquid guiding member accommodated in the cap member; and a control unit configured to control the liquid jetting head to jet a liquid from each of the first nozzle row and the second nozzle row; wherein a first liquid receiving groove extending in the predetermined direction and a second liquid receiving groove extending in the predetermined direction and having a volume smaller than a volume of the first liquid receiving groove are formed in a facing surface of the liquid guiding member, the facing surface being configured to face the liquid jetting surface; wherein the control unit is configured to control the liquid jetting head to jet the liquid from the first nozzle row toward the first liquid receiving groove and to jet the liquid from the second nozzle row toward the second liquid receiving groove at a time of flushing of the nozzles; wherein the control unit is configured to control the liquid jetting head such that, at the time of flushing, an amount of liquid jetted from the first nozzle row toward the first liquid receiving groove is greater than an amount of liquid jetted from the second nozzle row toward the second liquid receiving groove; wherein the cap member includes:
a first cap portion configured to cover the first nozzle row;a second cap portion being separated from the first cap portion by a partition wall portion and configured to cover the second nozzle row;a first liquid guiding member accommodated in the first cap portion; anda second liquid guiding member accommodated in the second cap portion; wherein the first liquid receiving groove is formed in the facing surface of the first liquid guiding member; wherein the second liquid receiving groove is formed in the facing surface of the second liquid guiding member; wherein a width of an opening of the first liquid receiving groove in a direction orthogonal to the predetermined direction is greater than a width of an opening of the second liquid receiving groove in the direction orthogonal to the predetermined direction; and wherein a width of a bottom of the first liquid receiving groove in the direction orthogonal to the predetermined direction is same as a width of a bottom of the second liquid receiving groove in the direction orthogonal to the predetermined direction.