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公开(公告)号：US11618250B2
公开(公告)日：2023-04-04
申请号：US17069103
申请日：2020-10-13
申请人： Ricoh Company, Ltd.
摘要： A liquid ejection apparatus includes a plurality of liquid ejection head units that eject liquid onto a conveyed object at different positions along a conveying path; a first support member and a second support member that are respectively provided at an upstream side and a downstream side of a landing position of liquid ejected by a corresponding liquid ejection head unit; a first detection unit that is installed between the first support member and the second support member and is configured to detect a position of the conveyed object in a direction orthogonal to a conveying direction of the conveyed object; a second detection unit that is installed upstream of the first detection unit; and a movement control unit that moves each liquid ejection head unit based on a plurality of detection results output by the first detection unit and/or the second detection unit.
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公开(公告)号：US10814622B2
公开(公告)日：2020-10-27
申请号：US15455539
申请日：2017-03-10
申请人： Ricoh Company, Ltd.
发明人： Mitsunobu Gohda , Tsuyoshi Nagasu , Koichi Kudo , Tomoaki Hayashi , Masayuki Sunaoshi , Masahiro Mizuno
摘要： A liquid ejection apparatus is provided that includes a plurality of liquid ejection head units that are configured to eject liquid onto a conveyed object being conveyed; a detection unit that is provided with respect to each liquid ejection head unit of the plurality of liquid ejection head units and is configured to output a detection result indicating at least one of a position, a moving speed, and an amount of movement of the conveyed object with respect to a conveying direction of the conveyed object; and a control unit configured to control the each liquid ejection head unit of the plurality of liquid ejection head units to eject liquid at a timing based on a plurality of the detection results of a plurality of the detection units.
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