IP Library › Granted Patent US 12679122
Granted Patent B2
US 12679122 · App. 18/440,740 · Granted Jul 14, 2026

Printing device

Inventors: Naohiro Ueyama (Matsumoto, JP); Yuya Yumoto (Shiojiri, JP)
Assignee: Seiko Epson Corporation
B41J29/13B41J2/16508B41J2/1714B41J29/377
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Quick Facts
Patent No.
US 12679122
App. No.
18/440,740
Granted
Jul 14, 2026
Kind
B2
Abstract

A printing device includes the carriage 24 that has disposed thereon the print head 25 configured to print on the medium and that is configured to move in the main scanning direction X and the housing 14 configured to accommodate the carriage 24 , wherein the opening 31 is provided in the side surface section 14 A of the housing 14 at a position that overlaps with the carriage 24 as viewed from the main scanning direction X.

Claims (55)

1 . A printing device comprising:

a carriage that has disposed thereon a print head configured to print on a medium and that is configured to move in the main scanning direction; and

a housing configured to accommodate the carriage and has two side surface sections positioned at each end of the housing in the main scanning direction, such that when the carriage moves in the main scanning direction, the carriage moves away from one of the two side surface sections towards the other of the two side surface section, wherein

a side surface opening is provided in one side surface section amongst the two side surface sections, the side surface opening at a position that overlaps with the carriage as viewed along the main scanning direction.

2 . The printing device according to claim 1 , wherein

the side surface section is provided with a vent valve configured to open and close the opening and

the vent valve, when the carriage moves in a direction approaching the opening, is opened by a first airflow generated in front of the carriage with respect to the traveling direction of the carriage, and when the carriage moves in a direction away from the opening, is closed by a second airflow generated behind the carriage with respect to the traveling direction of the carriage.

3 . The printing device according to claim 1 , wherein

the side surface section is provided with a bending flow path that communicates with the opening.

4 . The printing device according to claim 1 , wherein

the side surface section includes a first surface section and a second surface section that is disposed at a predetermined distance from the first surface section on the inner side of the housing in the main scanning direction and that partially overlaps the first surface section in the height direction, which intersects the main scanning direction,

the opening is provided between the first surface section and the second surface section, and

the bending flow path is formed between the first surface section and the second surface section.

5 . The printing device according to claim 1 , wherein

the first surface section is provided obliquely with respect to the side surface section so as to spread to outside the housing, and

the second surface section is provided such that its upper side is inclined toward outside the housing.

6 . The printing device according to claim 1 , wherein

the first surface section is detachably and attachably provided.

7 . The printing device according to claim 1 , wherein

the carriage is provided so as to be movable between a printing position at which printing is performed on the medium and a standby position to standby when the printing head does not perform printing and

the opening is provided in the side surface section to a standby position side of the housing.

8 . The printing device according to claim 7 , further comprising:

a maintenance section that is disposed at a position facing the print head when the carriage moves to the standby position and that has a cap, wherein

the carriage moves regularly or irregularly to the standby position during printing, and the print head performs idle ejection in which liquid is ejected toward the cap.

9 . The printing device according to claim 1 , wherein

the carriage is provided inside the edge of the opening as viewed from the main scanning direction.

10 . The printing device according to claim 9 , wherein

the opening is provided with a filter.

11 . A printing device comprising:

a carriage that has disposed thereon a print head configured to print on a medium and that is configured to move in the main scanning direction; and

a housing configured to accommodate the carriage, wherein

an opening is provided in one side surface section amongst two side surface sections of the housing that face each other in the main scanning direction at a position that overlaps with the carriage as viewed from the main scanning direction,

the side surface section is provided with a vent valve configured to open and close the opening and

the vent valve, when the carriage moves in a direction approaching the opening, is opened by a first airflow generated in front of the carriage with respect to the traveling direction of the carriage, and when the carriage moves in a direction away from the opening, is closed by a second airflow generated behind the carriage with respect to the traveling direction of the carriage.

12 . The printing device according to claim 11 , wherein

the side surface section is provided with a bending flow path that communicates with the opening.

13 . The printing device according to claim 11 , wherein

the side surface section includes a first surface section and a second surface section that is disposed at a predetermined distance from the first surface section on the inner side of the housing in the main scanning direction and that partially overlaps the first surface section in the height direction, which intersects the main scanning direction,

the opening is provided between the first surface section and the second surface section, and

the bending flow path is formed between the first surface section and the second surface section.

14 . The printing device according to claim 11 , wherein

the first surface section is provided obliquely with respect to the side surface section so as to spread to outside the housing, and

the second surface section is provided such that its upper side is inclined toward outside the housing.

15 . The printing device according to claim 11 , wherein

the carriage is provided so as to be movable between a printing position at which printing is performed on the medium and a standby position to standby when the printing head does not perform printing and

the opening is provided in the side surface section to a standby position side of the housing.

16 . The printing device according to claim 11 , wherein

the first surface section is detachably and attachably provided.

17 . The printing device according to claim 16 , further comprising:

a maintenance section that is disposed at a position facing the print head when the carriage moves to the standby position and that has a cap, wherein

the carriage moves regularly or irregularly to the standby position during printing, and the print head performs idle ejection in which liquid is ejected toward the cap.

18 . The printing device according to claim 11 , wherein

the carriage is provided inside the edge of the opening as viewed from the main scanning direction.

19 . The printing device according to claim 18 , wherein

the opening is provided with a filter.