公开(公告)号：US20240294016A1

公开(公告)日：2024-09-05

申请号：US18585621

申请日：2024-02-23

申请人： KYOCERA Document Solutions Inc.

发明人： Hiroomi Nakatsuji ,  Jun Nakano ,  Masato Usui ,  Naoko Kawashima

IPC分类号： B41J2/21

CPC分类号： B41J2/2142 ,  B41J2/2135 ,  B41J2/2139

摘要： An ejection malfunction nozzle detecting unit prints a test pattern and detects ejection malfunction nozzles on the basis of a scanned image of the test pattern. The ejection malfunction nozzle detecting unit classifies the ejection malfunction nozzles into periodical nozzles that periodically appear with a specific period in a primary scanning direction and non-periodical nozzles other than the periodical nozzles; for the periodical nozzles, stores the specific period and an offset as the ejection malfunction nozzle data into a storage device, and for the non-periodical nozzles, stores the ejection malfunction nozzle data that individually indicates positions of the non-periodical nozzles into the storage device. A correction processing unit performs the correction process for the periodical nozzles on the basis of the specific period and the offset, and the correction process for the non-periodical nozzles on the basis of the positions of the non-periodical nozzles.

公开(公告)号：US11554587B2

公开(公告)日：2023-01-17

申请号：US17206253

申请日：2021-03-19

申请人： KYOCERA Document Solutions Inc.

发明人： Hiroyuki Ueda ,  Chikara Ishihara ,  Takashi Somete ,  Issei Nakano ,  Jun Nakano ,  Hiroomi Nakatsuji ,  Aiichiro Otana ,  Takuma Araki ,  Noriaki Furukawa ,  Yasutaka Inui

IPC分类号： B41J2/165 ,  B41J11/00

摘要： The inkjet recording apparatus includes a conveyance belt, a conveyance plate, a suction unit, an inkjet head, and a cleaning unit. The conveyance belt has a plurality of through holes. The suction unit causes the conveyance belt to suck the sheet. The conveyance plate includes a plurality of through holes formed in bottom portions of the plurality of recessed portions. The inkjet head includes a head main body and a head end portion adjacent to the head main body, and faces an upper surface of the conveyance plate via the conveyance belt. The cleaning unit removes ink adhering to a lower surface of the head main body. A ratio of the recessed portions per unit area in a facing region of the conveyance plate facing the head end portion is smaller than a ratio of the recessed portions per unit area in a region other than the facing region.