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公开(公告)号：US09052665B2
公开(公告)日：2015-06-09
申请号：US14463493
申请日：2014-08-19
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hideki Ishida , Hiroki Tanaka
CPC classification number: G03G15/5041 , G03G15/065 , G03G15/5058
Abstract: In an image forming apparatus, a high-density portion and a low-density portion are arranged close to each other such that a boundary between the high-density portion and the low-density portion intersects with the conveyance direction of a density detection patch. A controller compares, in the conveyance direction, temporal change in the density detection value at a boundary portion shifting from the high-density portion to the low-density portion, with temporal change in the density detection value at a boundary portion shifting from the low-density portion to the high-density portion, and sets a process condition based on a result of the comparison.
Abstract translation: 在图像形成装置中，高密度部分和低密度部分彼此靠近地布置，使得高密度部分和低密度部分之间的边界与密度检测贴片的输送方向相交。 控制器在输送方向上比较从高密度部分向低密度部分移动的边界部分处的浓度检测值的时间变化，边界部分的浓度检测值的时间变化从低位移 密度部分，并且基于比较的结果设置处理条件。
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公开(公告)号：US12050411B2
公开(公告)日：2024-07-30
申请号：US17953528
申请日：2022-09-27
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hideki Ishida
IPC: G03G15/043 , G03G15/00 , H04N1/04 , H04N1/29
CPC classification number: G03G15/043 , G03G15/5058 , G03G15/5062 , H04N1/04 , H04N1/29 , H04N2201/0081
Abstract: An image forming apparatus includes a light scanning device, a developing portion, a control portion and a storage portion. The storage portion stores an evaluation chart. The evaluation chart includes a first evaluation pattern and a second evaluation pattern. The first evaluation pattern includes a first patch row. The first patch row is formed by arranging a plurality of first evaluation patches. The first evaluation patch includes a first dot row, a second dot row and an auxiliary dot row. The second evaluation pattern includes a second patch row. The second patch row is formed by arranging a plurality of second evaluation patches.
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公开(公告)号：US11754940B2
公开(公告)日：2023-09-12
申请号：US17953870
申请日：2022-09-27
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hideki Ishida
IPC: G03G15/00 , G03G15/043
CPC classification number: G03G15/043 , G03G15/5041 , G03G15/5058
Abstract: An image forming apparatus includes a light scanning device, a developing portion, a control portion and a storage portion. An evaluation chart includes a first evaluation pattern, a second evaluation pattern, a third evaluation pattern and a fourth evaluation pattern. The first evaluation pattern includes a first dot row and a second dot row, and the third evaluation pattern includes a fifth dot row and a sixth dot row. The fourth evaluation pattern is formed by arranging a plurality of fourth evaluation patches. The fourth evaluation patch includes a seventh dot row and an eighth dot row.
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公开(公告)号：US10394020B2
公开(公告)日：2019-08-27
申请号：US15663585
申请日：2017-07-28
Applicant: Kyocera Document Solutions Inc.
Inventor： Hideki Ishida
IPC: G02B26/12
Abstract: An image forming apparatus includes a light scanning device, a light detection unit, and a positional-deviation-amount calculation unit. The light detection unit includes a slit-shaped first light detection region and a slit-shaped second light detection region arranged to have mutually different angles with respect to a scanning direction of the light beam, and outputs a detection signal when the light beam passes through each of the light detection regions. The positional-deviation-amount calculation unit calculates a time period until when the light beam passes through the second light detection region from when the light beam has passed through the first light detection region for each scan of the light beam based on the detection signal output from the light detection unit, and calculates a variation characteristic of a positional deviation amount in a sub-scanning direction of the light beam associated with rotation of the polygon mirror.
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公开(公告)号：US10054889B2
公开(公告)日：2018-08-21
申请号：US15665962
申请日：2017-08-01
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hideki Ishida , Kazuhisa Kondo , Eiji Tatsumi , Ikuko Uneme
CPC classification number: G03G15/5062 , G02B26/12 , G03G15/04036 , G03G15/0409 , G03G15/55
Abstract: An image forming apparatus includes a mirror position adjustment mechanism capable of adjusting a position of a return mirror. The return mirror is used in a state in which its position is adjusted such that a gravity center position of the return mirror is separated from a rotational axis of the return mirror by the mirror position adjustment mechanism in a sub-scanning direction.
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Patent Agency Ranking
公开(公告)号：US09917971B2
公开(公告)日：2018-03-13
申请号：US15331683
申请日：2016-10-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hideki Ishida , Yuji Toyota , Hideji Mizutani
CPC classification number: H04N1/053 , H04N1/02409 , H04N1/0283 , H04N1/113 , H04N1/29 , H04N2201/0081 , H04N2201/0094
Abstract: A laser scanning device includes a light source, a deflection portion, an image forming lens, and a light source control portion. The light source emits a light beam. The deflection portion causes the light beam emitted from the light source to scan a scanned surface by deflecting the light beam at a predetermined deflection angle. The image forming lens condenses the deflected light beam on the scanned surface, and causes the light beam to be scanned on the scanned surface in a scanning direction at an equal speed. The light source control portion controls the light source to irradiate the light beam to at least one section area among a plurality of section areas sectioned from each other in the scanning direction on the scanned surface, at a plurality of irradiation timings determined based on a position of the at least one section area in the scanning direction.
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公开(公告)号：US20170118368A1
公开(公告)日：2017-04-27
申请号：US15331689
申请日：2016-10-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hideki Ishida , Yuji Toyota
CPC classification number: H04N1/0283 , H04N1/0281 , H04N1/03 , H04N1/295 , H04N2201/0094
Abstract: A laser scanning device includes light source, deflection portion, image forming lens, a block position setting portion, and a light source control portion. The image forming lens condenses a light beam deflected by the deflection portion on a scanned surface, and causes the light beam to be scanned on the scanned surface in a scanning direction at an equal speed. The block position setting portion sets one or more block areas which each include a plurality of section areas sectioned from each other on the scanned surface in the scanning direction. The light source control portion controls the light source to irradiate the light beam to the plurality of section areas at a plurality of irradiation timings that are determined for each of the block areas. The block position setting portion shifts set positions of the block areas along the scanning direction for each scan of at least one line.
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公开(公告)号：US12050412B2
公开(公告)日：2024-07-30
申请号：US17954044
申请日：2022-09-27
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hideki Ishida
IPC: G03G15/043 , G03G15/00
CPC classification number: G03G15/043 , G03G15/5058 , G03G15/5062 , G03G2215/00042
Abstract: An image forming apparatus includes a light scanning device, a developing portion, a control portion and a storage portion. An evaluation chart includes a first evaluation pattern and a second evaluation pattern. The first evaluation pattern includes a first patch row. The first patch row is formed by arranging a plurality of first evaluation patches. The first evaluation patch includes a first dot row and a second dot row. The second evaluation pattern includes a second patch row. The second patch row is formed by arranging a plurality of second evaluation patches.
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公开(公告)号：US20170118369A1
公开(公告)日：2017-04-27
申请号：US15331683
申请日：2016-10-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hideki Ishida , Yuji Toyota , Hideji Mizutani
CPC classification number: H04N1/053 , H04N1/02409 , H04N1/0283 , H04N1/113 , H04N1/29 , H04N2201/0081 , H04N2201/0094
Abstract: A laser scanning device includes a light source, a deflection portion, an image forming lens, and a light source control portion. The light source emits a light beam. The deflection portion causes the light beam emitted from the light source to scan a scanned surface by deflecting the light beam at a predetermined deflection angle. The image forming lens condenses the deflected light beam on the scanned surface, and causes the light beam to be scanned on the scanned surface in a scanning direction at an equal speed. The light source control portion controls the light source to irradiate the light beam to at least one section area among a plurality of section areas sectioned from each other in the scanning direction on the scanned surface, at a plurality of irradiation timings determined based on a position of the at least one section area in the scanning direction.
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公开(公告)号：US12050410B2
公开(公告)日：2024-07-30
申请号：US17952910
申请日：2022-09-26
Applicant: KYOCERA Document Solutions Inc.
Inventor： Hideki Ishida
IPC: G03G15/043 , G03G15/00
CPC classification number: G03G15/043 , G03G15/5058 , G03G15/5062
Abstract: An image forming apparatus includes a light scanning device, a developing portion, a control portion and a storage portion. The storage portion stores an evaluation chart. The evaluation chart includes a first evaluation pattern and a second evaluation pattern. The first evaluation pattern includes a first patch row. The first patch row is formed by arranging a plurality of first evaluation patches. The first evaluation patch includes a first dot row and a second dot row. The second evaluation pattern includes a second patch row. The second patch row is formed by arranging a plurality of second evaluation patches.
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