US 12,240,236 B2
Head, head module, liquid discharge apparatus, printer, module, and apparatus
Takeshi Miyazaki, Kanagawa (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Filed by Takeshi Miyazaki, Kanagawa (JP)
Filed on Sep. 8, 2022, as Appl. No. 17/940,184.
Claims priority of application No. 2021-180704 (JP), filed on Nov. 4, 2021.
Prior Publication US 2023/0134389 A1, May 4, 2023
Int. Cl. B41J 2/14 (2006.01)
CPC B41J 2/14 (2013.01) [B41J 2002/14362 (2013.01); B41J 2202/20 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A head comprising:
an attachment attached to a holder with a screw, the attachment having a through hole to which the screw is inserted, and
the through hole having
a female screw having a valley and a crest, and
a first concave part having a diameter larger than a diameter of the valley of the female screw, the first concave part opening toward the holder,
wherein the through hole further includes a second concave part between the female screw and the first concave part, and
the second concave part has a same diameter as the diameter of the valley of the female screw.