US 12,138,917 B2
Head module, head system, liquid discharge apparatus, and method for determining delay time
Yuji Kogame, Nagoya (JP)
Assigned to Brother Kogyo Kabushiki Kaisha, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Jul. 8, 2022, as Appl. No. 17/811,465.
Claims priority of application No. 2021-115215 (JP), filed on Jul. 12, 2021.
Prior Publication US 2023/0008325 A1, Jan. 12, 2023
Int. Cl. B41J 2/045 (2006.01)
CPC B41J 2/04573 (2013.01) [B41J 2/04586 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A head module comprising:
a first control circuit;
a first head having a plurality of first nozzles configured to discharge liquid, the first head being electrically connected to the first control circuit; and
a sensor electrically connected to the first control circuit and configured to detect an image formed on a recording medium,
wherein the first head has a first nozzle surface extended in a first direction and a second direction intersecting with the first direction,
the first nozzle surface includes a first region in which the first nozzles are formed along the first direction,
the sensor includes a light-receiving element which has a light-receiving surface extended in the first direction and the second direction, and
in the first direction, a position of the light-receiving element is same as a position of the first region;
wherein in the first direction, the position of the light-receiving element is same as a position of a part on one side in the first direction of the first region,
the head module further comprises a second head having a plurality of second nozzles configured to discharge the liquid, the second head being electrically connected to the first control circuit,
the second head has a second nozzle surface extended in the first direction and the second direction,
the second nozzle surface includes a second region in which the second nozzles are formed along the first direction, and
a position of another part on the other side in the first direction of the first region is same as a position of a part on the one side in the first direction of the second region.