Patent ID: 11970004
Assignee: CANON KABUSHIKI KAISHA
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A liquid discharge head comprising:
a liquid discharge substrate having
a discharge-orifice row having multiple discharge orifices that discharge a liquid to a record medium conveyed in a first direction,
multiple pressure generating elements that generate pressure for discharging the liquid from respective discharge orifices, and
multiple pressure chambers that communicate with respective discharge orifices and in which the pressure generated by respective pressure generating elements is transmitted,

wherein the discharge orifices in the discharge-orifice row are allocated in multiple blocks and the liquid is discharged from the discharge orifices using sequential driving in a block-by-block manner,
the discharge-orifice row is inclined at an angle θ=Arctan (d1/d2) relative to a second direction extending orthogonal to the first direction, in which d1 (μm) is a disposition spacing of the discharge orifices in the discharge-orifice row in the first direction and d2 (μm) is a disposition spacing of the discharge orifices in the discharge-orifice row in the second direction,
a partition wall, including a plurality of wall portions, is formed between adjacent pressure chambers so as to separate the adjacent pressure chambers from each other, and
the partition wall has a plurality of communicating portions that communicates the adjacent pressure chambers with each other,
wherein each of the communicating portions is disposed between two wall portions of the plurality of wall portions.