公开(公告)号：US20240034081A1

公开(公告)日：2024-02-01

申请号：US18360211

申请日：2023-07-27

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Akira AKAZAWA ,  Susumu FUJIWARA ,  Takeshi SHIBATA ,  Yusuke KURITA ,  Takuo YABUUCHI

IPC: B41J29/393 ,  B41J2/21

CPC classification number: B41J29/393 ,  B41J2/2142 ,  B41J2029/3935 ,  B41J2202/21 ,  B41J2203/01

Abstract: There is provided a controller for an image forming system including a head in which a plurality of nozzles is formed. The controller includes: a first communication interface configured to communicate with a line sensor including imaging elements arranged at a predetermined interval and having an element-lacking-part at which an interval between two elements is larger than the predetermined interval; and a second communication interface. The controller is configured to: form a test pattern including patterns; obtain a test pattern data generated by imaging the test pattern with the line sensor; correct a position of the patterns on the test pattern data based on a position of the element-lacking-part; and detect a discharge-defect-nozzle based on the corrected test pattern data.