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公开(公告)号：US20240152068A1
公开(公告)日：2024-05-09
申请号：US18492211
申请日：2023-10-23
发明人： KOICHI TANIGUCHI
CPC分类号： G03G15/04036 , G03G21/1832
摘要： An image forming apparatus includes an image carrier, an image forming unit, a measuring unit configured to measure the reflected light from the image carrier, a retaining member configured to retain the measuring unit, a shutter configured to block the light emitted from the light-emitting element, a spring member configured to pull the shutter to enter a closed state, a drive source, a drive control unit configured to control the drive source, a reference member, an adjustment unit configured to adjust the emitted light amount, and a control unit configured to control the image forming unit, the measuring unit, and the image forming unit, wherein, when the shutter enters the closed state from the open state, the drive control unit once stops the current supply to the drive source, then supplies a second current smaller than the first current to the drive source, and then stops the current supply again.
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公开(公告)号：US20230341795A1
公开(公告)日：2023-10-26
申请号：US18137182
申请日：2023-04-20
发明人： KOICHI TANIGUCHI
CPC分类号： G03G15/1615 , G03G15/5054 , G03G2215/0161 , G03G2215/1623 , G03G15/0131
摘要： An image forming apparatus includes a plurality of image forming portions; a rotatable endless belt; a plurality of stretching rollers including an inner roller and a steering roller; an outer roller; a steering mechanism; a position changing mechanism; and a controller. In a case that a changing operation for changing a position of the inner roller is performed by the position changing mechanism during execution of a job for forming the toner images on a plurality of recording materials, the controller controls the steering mechanism so that a tilting operation for tilting the steering roller in a predetermined amount in interrelation with the changing operation is executed.
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公开(公告)号：US20230341794A1
公开(公告)日：2023-10-26
申请号：US18137124
申请日：2023-04-20
发明人： KOICHI TANIGUCHI
IPC分类号： G03G15/16
CPC分类号： G03G15/1615
摘要： An image forming apparatus includes a plurality of image forming portions, a rotatable endless belt, a plurality of stretching rollers including an inner roller, an outer roller, a position changing mechanism, and a controller. During execution of a job for forming first toner images on a first recording material and second toner images on a second recording material subsequent to the first recording material, in a case that a changing operation for changing the position of the inner roller by the position changing mechanism after the first toner images are formed on the first recording material and before the second to toner images are transferred onto the second recording material is executed, the registration adjusting image is formed between the first toner images and the second toner images.
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