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11.发明授权公开(公告)号：US10928765B2
公开(公告)日：2021-02-23
申请号：US16818714
申请日：2020-03-13
发明人： Yohei Suzuki , Junya Azami , Seiji Hara , Atsunobu Mori , Masafumi Monde , Tatsuya Hotogi , Hirotaka Shiomichi
IPC分类号： G03G15/00
摘要： An image forming apparatus includes a plurality of members for forming an image; a transmitting unit configured to transmit a sonic wave; a receiving unit configured to receive a first sonic wave that has been transmitted from the transmitting unit and has passed through a sheet and a second sonic wave that is generated from at least one of the plurality of members; a detection unit configured to detect information regarding a type or state of the sheet based on the first sonic wave; and a determination unit configured to determine a state of a member that has generated the second sonic wave based on the second sonic wave.
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公开(公告)号：US09075338B2
公开(公告)日：2015-07-07
申请号：US13910833
申请日：2013-06-05
发明人： Ryuhei Shoji , Hirotaka Shiomichi , Jun Haruna
IPC分类号： B41J2/47 , G03G15/043 , G03G15/01 , G03G15/04 , G03G15/00 , G02B26/08 , G02B26/10 , G02B26/12 , H04N1/46
CPC分类号： G03G15/043 , G03G15/0189 , G03G15/04072 , G03G15/50
摘要： An image forming apparatus includes a control unit. The control unit is capable of executing a first mode for forming a toner image on the photosensitive member that rotates at a first speed and a second mode for forming a toner image on the photosensitive member that rotates at a second speed slower than the first speed, and the control unit causes the light illumination unit to perform the weak exposure in the first mode without thinning the scanning surface of the deflection scanning unit and perform the weak exposure in the second mode while thinning the scanning surface of the deflection scanning unit.
摘要翻译： 图像形成装置包括控制单元。 控制单元能够执行用于在以第一速度旋转的感光构件上形成调色剂图像的第一模式和用于在以比第一速度慢的第二速度旋转的感光构件上形成调色剂图像的第二模式， 并且控制单元使得照明单元在第一模式中执行弱曝光，而不会使偏转扫描单元的扫描表面变薄，并且在使偏转扫描单元的扫描表面变薄的同时在第二模式中执行弱曝光。
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公开(公告)号：US20130328987A1
公开(公告)日：2013-12-12
申请号：US13910833
申请日：2013-06-05
发明人： Ryuhei Shoji , Hirotaka Shiomichi , Jun Haruna
IPC分类号： B41J2/385
CPC分类号： G03G15/043 , G03G15/0189 , G03G15/04072 , G03G15/50
摘要： An image forming apparatus includes a control unit. The control unit is capable of executing a first mode for forming a toner image on the photosensitive member that rotates at a first speed and a second mode for forming a toner image on the photosensitive member that rotates at a second speed slower than the first speed, and the control unit causes the light illumination unit to perform the weak exposure in the first mode without thinning the scanning surface of the deflection scanning unit and perform the weak exposure in the second mode while thinning the scanning surface of the deflection scanning unit.
摘要翻译： 图像形成装置包括控制单元。 控制单元能够执行用于在以第一速度旋转的感光构件上形成调色剂图像的第一模式和用于在以比第一速度慢的第二速度旋转的感光构件上形成调色剂图像的第二模式， 并且控制单元使得照明单元在第一模式中执行弱曝光，而不会使偏转扫描单元的扫描表面变薄，并且在使偏转扫描单元的扫描表面变薄的同时在第二模式中执行弱曝光。
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公开(公告)号：US11693347B2
公开(公告)日：2023-07-04
申请号：US17836512
申请日：2022-06-09
发明人： Atsunobu Mori , Yohei Suzuki , Seiji Hara , Yasuhisa Matsumoto , Junya Azami , Masafumi Monde , Hirotaka Shiomichi , Tatsuya Hotogi
CPC分类号： G03G15/55 , G03G15/5029 , H04N1/00029 , H04N1/00042 , H04N1/00079 , G03G2215/00637
摘要： An image forming apparatus includes a first detector detecting an operation sound based on a sound wave received by a receiver; a second detector detecting basis weight of recording material based on an ultrasonic wave transmitted from a transmitter and received by the receiver; a switching unit that switches destination of a reception signal from the receiver between a first path to the first detector and a second path to the second detector; and a controller that controls the switching unit such that the reception signal is output to the first path at a first timing and to the second path at a second timing. When a predetermined condition is satisfied, the controller controls the switching unit such that the reception signal is output to the second path at the first timing or to the first path at the second timing.
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公开(公告)号：US20200089155A1
公开(公告)日：2020-03-19
申请号：US16560884
申请日：2019-09-04
发明人： Wataru Endo , Masanobu Ohmura , Hirotaka Shiomichi
IPC分类号： G03G15/00
摘要： A printing apparatus is provided. The apparatus comprises a light-emitting element, a light-receiving element including a first terminal and a second terminal, a reference current generator supplying a reference current, a comparator comparing a monitor current with the reference current, the light-receiving element supplying the monitor current to the second terminal in accordance with a light emission amount, a driver driving the light-emitting element based on an output of the comparator, and a reference voltage controller. The comparator includes a first input terminal connected to the second terminal and a second input terminal. The reference voltage controller supplies a reference voltage selected from at least two voltage values to the second input terminal, and to control the voltage of the second terminal to be a voltage according to the reference voltage.
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公开(公告)号：US20170341413A1
公开(公告)日：2017-11-30
申请号：US15598828
申请日：2017-05-18
发明人： Wataru Endo , Hirotaka Shiomichi
CPC分类号： B41J2/47 , B41J2/447 , H01S5/042 , H01S5/06209 , H01S5/06233 , H01S5/06808 , H01S5/06812 , H01S5/0683 , H05B37/0227 , H05B37/0272
摘要： A drive apparatus includes a light emitting device, a light receiving device configured to receive light emitted by the light emitting device, a comparison circuit configured to compare a light quantity of light detected by the light receiving device with a target value indicating a light quantity of light to be emitted by the light emitting device and generate a control signal corresponding to a comparison result, and a drive circuit configured to supply a drive signal corresponding to the control signal to the light emitting device. The drive circuit includes a gain changing switch configured to change, in accordance with the target value, a gain of the drive circuit.
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公开(公告)号：US09632450B2
公开(公告)日：2017-04-25
申请号：US14976654
申请日：2015-12-21
发明人： Hirotaka Shiomichi
IPC分类号： G03G15/043 , G03G15/04 , G02B26/12
CPC分类号： G03G15/043 , G02B26/12 , G02B26/127 , G03G15/04036 , G03G15/04072
摘要： An image forming apparatus incudes a driving unit configured to drive a light-emitting element for emitting a laser beam; a rotational polygon mirror scans a photosensitive member with the laser beam. The driving unit executes a first adjustment for causing the light-emitting element to emit light at a first light emission intensity to adjust a first driving current, and a second adjustment for causing the light-emitting element to emit light at a second light emission intensity to adjust a second driving current. During a time period after the polygon mirror has started rotating until a predetermined speed is reached, the driving unit performs the first adjustment and the second adjustment, after the polygon mirror has started rotating and before performing the first adjustment, performs the second adjustment.
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公开(公告)号：US20160103400A1
公开(公告)日：2016-04-14
申请号：US14976654
申请日：2015-12-21
发明人： Hirotaka Shiomichi
IPC分类号： G03G15/043 , G02B26/12
CPC分类号： G03G15/043 , G02B26/12 , G02B26/127 , G03G15/04036 , G03G15/04072
摘要： An image forming apparatus incudes a driving unit configured to drive a light-emitting element for emitting a laser beam; a rotational polygon mirror scans a photosensitive member with the laser beam. The driving unit executes a first adjustment for causing the light-emitting element to emit light at a first light emission intensity to adjust a first driving current, and a second adjustment for causing the light-emitting element to emit light at a second light emission intensity to adjust a second driving current. During a time period after the polygon mirror has started rotating until a predetermined speed is reached, the driving unit performs the first adjustment and the second adjustment, after the polygon mirror has started rotating and before performing the first adjustment, performs the second adjustment.
摘要翻译： 图像形成装置包括：驱动单元，被配置为驱动用于发射激光束的发光元件; 旋转多面镜用激光束扫描感光构件。 所述驱动单元执行用于使所述发光元件以第一发光强度发光的第一调整以调节第一驱动电流，以及用于使所述发光元件以第二发光强度发光的第二调整 调整第二驱动电流。 在多面镜开始旋转直到达到预定速度的时间段期间，驱动单元执行第一调整和第二调整，在多面镜开始旋转之后并且在执行第一调整之前，执行第二调整。
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公开(公告)号：US20130328986A1
公开(公告)日：2013-12-12
申请号：US13909877
申请日：2013-06-04
发明人： Hirotaka Shiomichi
IPC分类号： B41J2/385
CPC分类号： G03G15/043 , G02B26/12 , G02B26/127 , G03G15/04036 , G03G15/04072
摘要： An image forming apparatus includes a driving unit configured to drive a light-emitting element for emitting a laser beam; a rotational polygon mirror scans a photosensitive member with the laser beam. The driving unit executes a first adjustment for causing the light-emitting element to emit light at a first light emission intensity to adjust a first driving current, and a second adjustment for causing the light-emitting element to emit light at a second light emission intensity to adjust a second driving current. During a time period after the polygon mirror has started rotating until a predetermined speed is reached, the driving unit performs the first adjustment and the second adjustment, after the polygon mirror has started rotating and before performing the first adjustment, performs the second adjustment.
摘要翻译： 图像形成装置包括：驱动单元，被配置为驱动用于发射激光束的发光元件; 旋转多面镜用激光束扫描感光构件。 所述驱动单元执行用于使所述发光元件以第一发光强度发光的第一调整以调节第一驱动电流，以及用于使所述发光元件以第二发光强度发光的第二调整 调整第二驱动电流。 在多面镜开始旋转直到达到预定速度的时间段期间，驱动单元执行第一调整和第二调整，在多面镜开始旋转之后并且在执行第一调整之前，执行第二调整。
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20.发明申请公开(公告)号：US20220404755A1
公开(公告)日：2022-12-22
申请号：US17894642
申请日：2022-08-24
发明人： Yohei Suzuki , Junya Azami , Seiji Hara , Atsunobu Mori , Masafumi Monde , Tatsuya Hotogi , Hirotaka Shiomichi
IPC分类号： G03G15/00
摘要： An image forming apparatus includes: a plurality of members for forming an image; a transmitting unit configured to transmit a sonic wave; a receiving unit configured to receive a first sonic wave that has been transmitted from the transmitting unit and has passed through a sheet and a second sonic wave that is generated from at least one of the plurality of members; a detection unit configured to detect information regarding a type or state of the sheet based on the first sonic wave; and a determination unit configured to determine a state of a member that has generated the second sonic wave based on the second sonic wave.
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