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公开(公告)号：US11669029B2
公开(公告)日：2023-06-06
申请号：US17530117
申请日：2021-11-18
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Shintaro Sakaguchi , Noriaki Kishimoto , Shuhei Fukue , Shunsuke Ueki
CPC classification number: G03G15/2028 , B41J3/60 , B41J13/0009 , B65H5/06 , G03G15/2064 , B65H2801/06
Abstract: An image forming apparatus includes a sheet tray, a feed roller, a transfer roller, a fuser, a conveying unit, and a controller configured to execute a normal process. The controller executes a particular process, when performing the single sided printing. The particular process is a process in which the controller is configured to execute a non-actual-printing process on a first surface of a first sheet, and then configured to execute the non-actual-printing on a first surface of a second sheet before executing an actual-printing process on a second surface of the first sheet. The non-actual-printing process is a process of conveying the sheet to the fuser without transferring the developer image onto the first surface of the sheet. The actual-printing process is a process of transferring the developer image onto the second surface of the sheet.
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公开(公告)号：US11650519B2
公开(公告)日：2023-05-16
申请号：US17472997
申请日：2021-09-13
Applicant: Brother Kogyo Kabushiki Kaisha
Inventor： Yusuke Mizuno , Shintaro Sakaguchi
CPC classification number: G03G15/0868 , G03G15/5045 , G03G21/206
Abstract: An image forming apparatus includes a main body housing, a first cartridge to store first developer, a second cartridge to store second developer, a first temperature sensor to detect an inside temperature as a temperature inside the main body housing, and a controller configured to calculate a first control temperature corresponding to the first cartridge, using the detected inside temperature and a first coefficient to be multiplied by the inside temperature, calculate a second control temperature corresponding to the second cartridge, using the detected inside temperature and a second coefficient to be multiplied by the inside temperature, the second coefficient being different from the first coefficient, and perform cooling control to cool an inside of the main body housing when at least one selected from the first control temperature and the second control temperature is higher than a particular threshold.
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公开(公告)号：US20220066354A1
公开(公告)日：2022-03-03
申请号：US17351499
申请日：2021-06-18
Applicant: Brother Kogyo Kabushiki Kaisha
Inventor： Yusuke IKEGAMI , Shintaro Sakaguchi , Kotaro Haruta , Yuwen Wang
Abstract: An image forming apparatus includes a housing having an opening, a cover configured to openably close the opening, photosensitive drums, cartridges, a first motor and a controller. Each cartridge has a developing roller, a storage chamber configured to store toner, and an agitator configured to agitate the toner. The first motor is configured to rotate the agitators. The controller rotates the agitators by rotating the first motor when forming an image on a sheet. The controller determines whether a new cartridge is included in the plurality of cartridges in response to the image forming apparatus being turned on or in response to the cover being closed. In a case where a new cartridge is included, the controller stirs toner with the agitators by rotating the first motor. In a case where a new cartridge is not included, the controller does not stir the toner.
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公开(公告)号：US11106155B2
公开(公告)日：2021-08-31
申请号：US16890554
申请日：2020-06-02
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Shintaro Sakaguchi , Toshiyuki Sano , Masahito Saeki
IPC: G03G15/08
Abstract: An image-forming apparatus includes: a process motor; a developing motor; a sheet conveying device; first and second photosensitive drums rotatable by a driving force from the process motor; first and second developing rollers and first and second cams each rotatable by a driving force from the developing motor; a switching mechanism, and a controller. Rotation of each cam causes each developing roller to move between a contact position in contact with the corresponding photosensitive drum and a separated position away from the corresponding photosensitive drum. The controller allows the switching mechanism to transmit the driving force from the developing motor to each cam such that a timing of contact between the second developing roller and the second photosensitive drum in a low speed mode is coincident with or earlier than a timing of contact between the second developing roller and the second photosensitive drum in a normal mode.
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公开(公告)号：US11067933B2
公开(公告)日：2021-07-20
申请号：US16550791
申请日：2019-08-26
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Shintaro Sakaguchi
Abstract: The image forming apparatus includes a user interface, a controller, and a main memory. The controller provides an error notification to the user interface in a case where drum cartridge information read from the main memory does not match drum-cartridge identification information stored in a drum-cartridge memory of a drum cartridge and replacement of the drum cartridge replacement is not necessary. The controller may also provide an error notification to the user interface in a case where a toner cartridge information read from the main memory does not match toner-cartridge identification information stored in a toner-cartridge memory of a toner cartridge and replacement of the toner cartridge is not necessary.
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Patent Agency Ranking
公开(公告)号：US09757964B2
公开(公告)日：2017-09-12
申请号：US15271659
申请日：2016-09-21
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Shintaro Sakaguchi
CPC classification number: B41J13/0054 , B41J2/01 , B41J3/60 , B41J11/002 , B41J13/0009 , B41J13/0036 , B41J13/0045
Abstract: There is provided a recording apparatus including a liquid jetting unit, a container unit, a receiving unit, a conveyance unit and a controller. The controller is configured to carry out: determining whether or not it is necessary to stop and dry the liquid jetted recording medium in the conveyance path and controlling the conveyance unit to stop the recording medium in the conveyance path under a condition that the controller determines that it is necessary to dry the recording medium.
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公开(公告)号：US11640133B2
公开(公告)日：2023-05-02
申请号：US17460411
申请日：2021-08-30
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Chieko Mimura , Yusuke Ikegami , Shintaro Sakaguchi
Abstract: An image forming apparatus includes: a photosensitive drum; a developing roller; a separation mechanism configured to switch a state of the photosensitive drum and the developing roller between a contact state and a separation state; a main memory storing therein a first rotation number and a second rotation number; and a controller configured to perform calculating a deterioration quantity of the photosensitive drum based on the first rotation number and the second rotation number in the main memory. A surface of the developing roller contacts a surface of the photosensitive drum in the contact state, whereas the surface of the developing roller is separated from the surface of the photosensitive drum in the separation state. The first rotation number is the number of rotations of the photosensitive drum in the contact state, and the second rotation number is the number of rotations of the photosensitive drum in the separation state.
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公开(公告)号：US11592771B2
公开(公告)日：2023-02-28
申请号：US17574769
申请日：2022-01-13
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Shintaro Sakaguchi , Yusuke Ikegami , Yasuhiro Suzuki , Saya Minoshima
Abstract: A controller is configured to control a print engine and a conveyor to form an image on both sides of a sheet. The controller is configured to: in a case where images to be formed on both sides of each of an Nth (N is a positive integer) sheet, an (N+1)th sheet, and an (N+2)th sheet are all monochrome image or all color image, convey the (N+2)th sheet to the print engine and form an image before forming an image on both sides of the (N+1)th sheet; and in a case where the images to be formed on both sides of each of the Nth sheet, the (N+1)th sheet, and the (N+2)th sheet are a mixture of the monochrome image and the color image, convey the (N+2)th sheet to the print engine and form an image after forming an image on both sides of the (N+1)th sheet.
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公开(公告)号：US11415927B2
公开(公告)日：2022-08-16
申请号：US17345145
申请日：2021-06-11
Applicant: Brother Kogyo Kabushiki Kaisha
Inventor： Yusuke Ikegami , Shintaro Sakaguchi , Kotaro Haruta
Abstract: An image forming apparatus according to aspects of the present disclosure includes a cover, an interlocking mechanism, a sensor, a separation mechanism, a controller. In a state where the cover moves from a closed position to an open position while no power is supplied to the controller, a state of the interlocking mechanism changes from a first state to a second state. In a state where the sensor does not detect that the interlocking mechanism is in the second state when power supply to the controller is started, the separation mechanism keeps the developing roller located at a separation position at the separation position. On the other hand, in a state where the sensor detects that the interlocking mechanism is in the second state when power supply to the controller is started, the separation mechanism moves the developing roller located at a contact position to the separation position.
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公开(公告)号：US11256190B2
公开(公告)日：2022-02-22
申请号：US17124802
申请日：2020-12-17
Applicant: BROTHER KOGYO KABUSHIKI KAISHA
Inventor： Yusuke Ikegami , Shintaro Sakaguchi , Toshiyuki Sano
Abstract: A controller is configured to, when forming an image on one sheet, in a case where a length of one sheet in a conveyance direction is larger than a first length, drive a moving mechanism to move a plurality of developing rollers from a separation position to a contact position, temporarily stop driving of the moving mechanism, and then, at a first timing, again drive the moving mechanism to move the plurality of developing rollers from the contact position to the separation position; and in a case where the length of the one sheet in the conveyance direction is smaller than or equal to the first length, drive the moving mechanism to move the plurality of developing rollers from the separation position to the contact position and then to move the plurality of developing rollers from the contact position to the separation position without stopping driving of the moving mechanism.
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