IP Library Granted Patent US 12661675
Granted Patent B2
US 12661675 · App. 18/408,628 · Granted Jun 23, 2026

Liquid ejection device

Inventors: Manabu Yamada (Matsumoto, JP); Tomoji Suzuki (Matsumoto, JP); Hiroshi Nose (Shiojiri, JP)
Assignee: SEIKO EPSON CORPORATION
B05B15/52B05B15/65B05B15/68B05B12/02
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12661675
App. No.
18/408,628
Granted
Jun 23, 2026
Kind
B2
Abstract

A liquid ejection device includes: a head including a nozzle surface in which a nozzle is opened, the head being configured to eject liquid from the nozzle; a standby cap that covers the nozzle by coming into contact with the head; a receiving unit that receives the liquid ejected from the nozzle; and a maintenance unit that performs maintenance of the head. The head moves in a first area, a second area, and a printing area by moving in a scanning direction, and performs printing on a medium by ejecting the liquid onto the medium while moving in the printing area. The printing area is located between the first area and the second area in the scanning direction. The standby cap and the accommodation unit are located in the first area. The maintenance unit is located in the second area.

Claims (42)

1 . A liquid ejection device comprising:

a head including a nozzle surface in which a nozzle is opened, the head being configured to eject liquid from the nozzle;

a standby cap configured to cover the nozzle by coming into contact with the head;

a receiving unit configured to receive the liquid ejected from the nozzle;

a maintenance unit configured to perform maintenance of the head, wherein

the head moves in a first area, a second area, and a printing area by moving in a scanning direction, and performs printing on a medium by ejecting the liquid onto the medium while moving in the printing area,

the printing area is located between the first area and the second area in the scanning direction,

the standby cap and the receiving unit are located in the first area,

the maintenance unit is located in the second area,

the maintenance unit includes a cleaning unit,

the cleaning unit is configured to perform the maintenance of the head by sucking the liquid from the nozzle, and

the cleaning unit is in the second area; and

a first mounting unit and a second mounting unit to which a liquid reservoir is mountable, the liquid reservoir being configured to store the liquid, wherein

at least a portion of the first mounting unit is located in the first area,

the first mounting unit is located vertically below the standby cap and the receiving unit,

a plurality of liquid reservoirs is mounted overlapping vertically to the first mounting unit,

at least a portion of the second mounting unit is located in the second area,

the second mounting unit is located vertically below the maintenance unit,

a plurality of liquid reservoirs is mounted overlapping vertically to the second mounting unit,

the plurality of liquid reservoirs mounted to the second mounting unit includes a liquid reservoir that accommodates cleaning liquid for cleaning the maintenance unit,

a vertical dimension of the standby cap and the receiving unit is smaller than a vertical dimension of the maintenance unit, and

a vertical dimension of the first mounting unit is larger than a vertical dimension of the second mounting unit.

2 . The liquid ejection device according to claim 1 , wherein

the cleaning unit includes a suction cap configured to cover the nozzle by coming into contact with the head, and a suction pump configured to suck an inside of the suction cap.

3 . The liquid ejection device according to claim 2 , wherein

the maintenance unit includes a wiping unit configured to perform the maintenance of the head by wiping the nozzle surface, and

the wiping unit includes

a wiping member configured to come into contact with the nozzle surface,

a feeding unit configured to feed the wiping member, and

a winding unit configured to wind the wiping member.

4 . The liquid ejection device according to claim 1 , wherein

a number of the plurality of liquid reservoirs mountable to the first mounting unit is larger than a number of the plurality of liquid reservoirs mountable to the second mounting unit.

5 . The liquid ejection device according to claim 1 , wherein

the receiving unit is located between the standby cap and the maintenance unit in the scanning direction.

6 . The liquid ejection device according to claim 3 , wherein

the wiping unit is located between the cleaning unit and the receiving unit in the scanning direction.

7 . The liquid ejection device according to claim 1 , wherein

the first area includes an acceleration and deceleration area, the acceleration and deceleration area being an area in which the head accelerates and decelerates for the printing, and

the standby cap and the receiving unit are located in the acceleration and deceleration area.

8 . The liquid ejection device according to claim 1 , wherein

the second area includes an acceleration and deceleration area, the acceleration and deceleration area being an area in which the head accelerates and decelerates for the printing, and

the maintenance unit is located in the acceleration and deceleration area.