Print head with handle

Patent metadata

Field	Value
Publication number	US-12583234-B2
Application number	US-202418424938-A
Country	US
Kind code	B2
Filing date	Jan 29, 2024
Priority date	Jan 30, 2023
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

A print head that discharges a liquid includes: a nozzle plate in which a nozzle aperture through which the liquid is to be discharged in an ejection direction is formed, the nozzle plate being mounted on a liquid ejection surface; a housing that accommodates at least a portion of the nozzle plate; and a handle positioned opposite the nozzle plate in the ejection direction. The handle has a greater strength than that of the housing. At least a portion of the handle is aligned with the nozzle plate in a normal direction of the nozzle plate.

First claim

What is claimed is:

1 . A print head that discharges a liquid, the print head comprising:
a nozzle plate in which a nozzle aperture which extends through the nozzle plate along a penetrating direction and through which the liquid is to be discharged in an ejection direction is formed, the nozzle plate being mounted on a liquid ejection surface; an ejection control substrate on which an ejection control circuit that generates an ejection timing signal of the liquid from the nozzle aperture is mounted; a housing that accommodates at least a portion of the nozzle plate and the ejection control substrate, the housing having a housing aperture opening along the penetrating direction of the nozzle aperture; a handle positioned opposite the nozzle plate in the penetrating direction; and a connector which is mounted on the ejection control substrate, is attachable to a cable, and to which a control signal for controlling an operation of the print head is to be input via the cable, the connector being exposed via the housing aperture to an outside of the print head, the handle having a greater strength than that of the housing, at least a portion of the handle being aligned with the nozzle plate in a normal direction of the nozzle plate, which is along the penetrating direction, and the connector being misaligned from the handle in the normal direction.

2 . The print head according to claim 1 , wherein
the liquid ejection surface has a first side and a second side, the second side being longer than and intersecting the first side as viewed from the normal direction, and a length of the handle along the first side is shorter than a length of the handle along the second side as viewed from the normal direction.

3 . The print head according to claim 1 , further comprising a drive circuit that outputs a drive signal for use in discharging the liquid through the nozzle aperture, wherein
at least a portion of the drive circuit is positioned between the nozzle plate and the handle in the normal direction.

4 . The print head according to claim 3 , further comprising a cooling unit that cools down the drive circuit, the cooling unit being misaligned from the handle in the normal direction.

5 . The print head according to claim 1 , wherein
the handle is configured to be held by both hands.

6 . The print head according to claim 1 , wherein
the print head has a weight of 5 kg or more.

7 . The print head according to claim 1 , wherein
the handle is made of a metal material.

8 . The print head according to claim 1 , wherein
at least a portion of the handle is aligned with a center of the print head in the normal direction.

Assignees

• Seiko Epson Corp

Inventors

• Miura Masaki

Classifications

• B41J2/14 Primary

  Structure thereof {only for on-demand ink jet heads} · CPC title

• B41J3/40731

  Holders for objects, e. g. holders specially adapted to the shape of the object to be printed or adapted to hold several objects · CPC title

• B41J2202/14

  Mounting head into the printer · CPC title

• B41J3/39

  hand-held · CPC title

• B41J2202/19

  Assembling head units · CPC title