Liquid discharge head, liquid discharge module, and liquid discharge apparatus
AssigneeRicoh Company, Ltd.
InventorsKazuto Nagahashi, Keishi Miwa, Toshiaki Masuda
Life of this patent
Estimating the term…
Abstract
A liquid discharge head includes: a nozzle plate having multiple nozzles from each of which a liquid is to be discharged, the multiple nozzles arrayed in a longitudinal direction of the nozzle plate; a channel substrate on the nozzle plate in a lamination direction orthogonal to the longitudinal direction, the channel substrate including: multiple channels arrayed in the longitudinal direction in a channel region of the channel substrate, the multiple channels respectively communicating with the multiple nozzles; a first recess outside the channel region in the longitudinal direction; and a flat portion between the channel region and the first recess in the longitudinal direction.
Claims15
A liquid discharge head comprising:
- a nozzle plate having multiple nozzles from each of which a liquid is to be discharged, the multiple nozzles arrayed in a longitudinal direction of the nozzle plate;
- a channel substrate laminated on the nozzle plate in a lamination direction orthogonal to the longitudinal direction, the channel substrate including:
- multiple channels arrayed in the longitudinal direction in a channel region of the channel substrate, the multiple channels respectively communicating with the multiple nozzles;
- a first recess outside the channel region in the longitudinal direction;
- and
- a flat portion between the channel region and the first recess in the longitudinal direction, wherein
- the first recess includes multiple recesses spaced apart by a first interval, with the channel substrate positioned between each of the multiple recesses, around a periphery of the channel region of the channel substrate.
A liquid discharge head comprising:
- a nozzle plate having multiple nozzles from each of which a liquid is to be discharged, the multiple nozzles arrayed in a longitudinal direction of the nozzle plate;
- a channel substrate laminated on the nozzle plate in a lamination direction orthogonal to the longitudinal direction, the channel substrate including:
- multiple channels arrayed in the longitudinal direction in a channel region of the channel substrate, the multiple channels respectively communicating with the multiple nozzles;
- a first recess continuously surrounding the channel region, the first recess penetrating through the channel substrate in the lamination direction;
- a flat portion disposed between the channel region and the first recess in the longitudinal direction;
- a second recess continuously surrounding the channel region, the second recess penetrating through the channel substrate in the lamination direction;
- and
- a second flat portion disposed between the channel region and the second recess in the longitudinal direction.
Dependencies are inferred from the claim text.