Patents by Inventor Yuki Fukusada

Yuki Fukusada has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210302910
    Abstract: An image forming apparatus includes: a casing having an opening; a cover for opening and closing the opening; a cartridge attachable to the casing through the opening; and a controller. The casing includes a first memory. The cartridge includes a second memory storing consumption state information representing a consumption state of the cartridge. The controller performs: determining whether the cartridge attached to the casing is unused; storing, when the attached cartridge is unused, the consumption state information acquired from the second memory in the first memory; determining, when the image forming apparatus is powered on or the cover is closed, whether the consumption state information in the first memory and the consumption state information in the second memory match; permitting use of the cartridge when the two sets of consumption state information match; and prohibiting use of the cartridge when the two set of consumption state information does not match.
    Type: Application
    Filed: March 26, 2021
    Publication date: September 30, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Yuki FUKUSADA
  • Publication number: 20210303234
    Abstract: An image forming apparatus includes a main memory, and a controller. The main memory stores mode information indicating whether the image forming apparatus is set to a contract mode, upper limit information indicating an upper limit to which printing can be performed during a prescribed period, and actual print sheet number information indicating an actual print sheet number actually printed during the prescribed period. The performs a printing permission process in a case that mode information indicates the contract mode and the actual print sheet number is less than the upper limit when the controller receives a print job even in a case that a sum of a specific print sheet number specified in advance in the print job and the actual print sheet number is greater than the upper limit, the printing permission process permitting printing for the specific sheet number as a permission print sheet number.
    Type: Application
    Filed: March 26, 2021
    Publication date: September 30, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Yuki FUKUSADA
  • Patent number: 11132155
    Abstract: An image forming apparatus includes a consumable cartridge and a main body. The consumable cartridge includes a cartridge memory storing usage information and identifying information. The main body includes a main memory and a controller. The controller stores the identifying information stored in the cartridge memory in the main memory and rewrites the usage information stored in the cartridge memory into information indicating that the consumable cartridge is used in a case where the usage information indicates that the consumable cartridge is unused.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: September 28, 2021
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yuki Fukusada
  • Publication number: 20210096793
    Abstract: An image forming apparatus includes a consumable cartridge and a main body. The consumable cartridge includes a cartridge memory storing usage information and identifying information. The main body includes a main memory and a controller. The controller stores the identifying information stored in the cartridge memory in the main memory and rewrites the usage information stored in the cartridge memory into information indicating that the consumable cartridge is used in a case where the usage information indicates that the consumable cartridge is unused.
    Type: Application
    Filed: August 26, 2020
    Publication date: April 1, 2021
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventor: Yuki FUKUSADA
  • Patent number: 9724949
    Abstract: A printing apparatus system, comprising: a printing apparatus; and connection devices connected to the printing apparatus in multistage, wherein a device side controller is configured to: execute an authentication process in cooperation with an apparatus side controller when a signal is input thereto, the signal corresponding to a start command signal output from the printing apparatus and input to an electric resistance; and execute a level process where a voltage level of the start command signal passed the electric resistance is set to be higher than or equal to a predetermined level when the authentication process is finished, wherein the apparatus side controller is configured to store identification information assigned to each of the connection devices and number-of-stage information indicating, for each of the connection devices, which stage a connection device associated with the identification information is connected to, wherein the identification information is associated with the number-of-stage
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: August 8, 2017
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yuki Fukusada, Takashi Suzuki
  • Publication number: 20150324673
    Abstract: A printing apparatus system, comprising: a printing apparatus; and connection devices connected to the printing apparatus in multistage, wherein a device side controller is configured to: execute an authentication process in cooperation with an apparatus side controller when a signal is input thereto, the signal corresponding to a start command signal output from the printing apparatus and input to an electric resistance; and execute a level process where a voltage level of the start command signal passed the electric resistance is set to be higher than or equal to a predetermined level when the authentication process is finished, wherein the apparatus side controller is configured to store identification information assigned to each of the connection devices and number-of-stage information indicating, for each of the connection devices, which stage a connection device associated with the identification information is connected to, wherein the identification information is associated with the number-of-stage
    Type: Application
    Filed: May 11, 2015
    Publication date: November 12, 2015
    Inventors: Yuki FUKUSADA, Takashi SUZUKI
  • Patent number: 9081338
    Abstract: An image forming apparatus includes: a fixing device having a heating member, a heat source, a rotating member, and a temperature sensor; and a control device configured to control the heat source, wherein, in a case of a low temperature state where the temperature of the heating member is lower than a predetermined temperature, the control device to control the heat source such that the temperature of the heating member rises with a gradient equal to or greater than a predetermined value, and wherein, in a case of a high temperature state where the temperature of the heating member at the print-instruction receiving time is equal to or higher than the predetermined temperature, the control device to control the heat source such that the temperature of the heating member rises with a gradient smaller than that in the normal mode.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: July 14, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kenji Takeuchi, Kei Ishida, Kaoru Suzuki, Yuki Fukusada
  • Patent number: 9046835
    Abstract: An image forming apparatus includes: a fixing device having a heat source, a heating member, and a backup member; a temperature detecting member; a driving source configured to rotate at least one of the heating member and the backup member; a transmitting mechanism configured to transmit a driving force of the driving source; and a control device configured to control the heat source and the driving source, wherein, after a power is turned on, the control device turns on the heat source before the driving source is driven for the first time, and wherein, when at least one of a condition, where the temperature detected by the temperature detecting member becomes a first temperature, and a condition where a predetermined period elapses after the power is turned on, is satisfied, the control device turns off the heat source and then drives the driving source.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: June 2, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kenji Takeuchi, Kei Ishida, Kaoru Suzuki, Yuki Fukusada
  • Patent number: 9031442
    Abstract: An image-forming apparatus includes: a fixing device; a power supply unit; a non-contact temperature sensor; and a control device. The fixing device has a heating member. The power supply unit is configured to supply electric power to the heating member. The non-contact temperature sensor is disposed in a position separate from the heating member and configured to detect temperature of the heating member. A first function and a second function respectively produce a first corrected temperature value and a second corrected temperature value smaller than the first corrected temperature value with respect to a given detected temperature. The control device is configured to: select the first function to correct the detected temperature at a start of a print control process; switch from the first function to the second function at a prescribed timing during the print control process; and control the power supply unit based on the corrected temperature.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: May 12, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tatsuya Koyama, Yuki Fukusada
  • Patent number: 8983326
    Abstract: An image forming apparatus may include: a heating unit including a heating member that is heated by a heat source and a backup member that forms a nip portion; a feeding unit; and a control unit configured to control the heat source and the feeding unit, wherein the control unit controls the feeding unit such that each of a plurality of recording sheets is fed to the nip portion, wherein some of the plurality of the recording sheets are sequentially conveyed at a second interval to each other, wherein a first recording sheet of the some of the plurality of the recording sheets is fed to have a first interval with respect to a previously conveyed recording sheet, and wherein the control unit increases the output of the heat source on a timing when a front end of the first recording sheet reaches a periphery of the nip portion.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: March 17, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kenji Takeuchi, Yuki Fukusada
  • Patent number: 8948640
    Abstract: An image forming apparatus includes: a fixing device: having a heating member, a rotating member, and a temperature sensor; a sheet feeding unit; and a control device configured to perform a sheet feed control: in which the feeding timing is set to a first timing if the temperature gradient of the heating member for a predetermined period is larger than a first threshold value; and in which the feeding timing is set to a second timing later than the first timing if the temperature gradient of the heating member for the predetermined period is equal to or less than the first threshold value, and wherein, in the sheet feed control, the control device changes the first threshold value to a smaller value as the temperature of the heating member at the print-instruction receiving time increase.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: February 3, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Kenji Takeuchi, Kei Ishida, Kaoru Suzuki, Yuki Fukusada
  • Patent number: 8770876
    Abstract: A printing apparatus is provided. The printing apparatus includes a printing unit, a sheet feeder, a discharge unit, a sheet path including a feeding path, a discharge path, and a reversing path, a manual sheet inlet, through which a recording sheet is manually inserted, a manual sheet path merging into the sheet path at a merging point and guiding the manually-inserted recording sheet to the merging point, a detecting unit to detect the manually-inserted sheet fed through the manual sheet inlet while a double-face printing operation is conducted with a preceding recording sheet, a judging unit to judge whether the detecting unit detected the manually-inserted sheet, and a conveyer controller unit to reduce a speed to convey the preceding recording sheet in the sheet path when the judging unit judges that the detecting unit detected the manually-inserted sheet.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: July 8, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yuki Fukusada, Tetsuya Okano
  • Patent number: 8774665
    Abstract: An image forming apparatus includes: an image forming section; a fixation section having a heating mechanism and a roller arranged to face the heating mechanism; a temperature detector for detecting temperature of the fixation section; and a controller for performing a first heating-control in a first heating mode to raise the temperature of the fixation section at a first changing rate, and a second heating-control in a second heating mode to change the temperature of the fixation section at a second changing rate lower than the first changing rate upon rotating the roller when the temperature of the fixation section has reached an intermediate target temperature. The controller performs the first and second heating-controls, respectively, at the time of startup of the fixation section at least once until the temperature of the fixation section reaches a final target temperature.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: July 8, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tetsuya Okano, Yuki Fukusada
  • Patent number: 8757617
    Abstract: An apparatus may be configured to: upon feeding a sheet by a roller, wait for a sheet waiting interval before feeding a next sheet by the roller, determine, using a sensor downstream from the roller in a sheet feeding path, a sensed sheet interval between at least two of the fed sheets; determine whether the sensed sheet interval is equal to or greater than a reference value; and in response to determining that the sensed sheet interval is equal to or greater than the reference value, reduce the sheet feed waiting interval for subsequent feeding of at least one sheet.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: June 24, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Yuki Fukusada
  • Publication number: 20140153948
    Abstract: An image-forming apparatus includes: a fixing device; a power supply unit; a non-contact temperature sensor; and a control device. The fixing device has a heating member. The power supply unit is configured to supply electric power to the heating member. The non-contact temperature sensor is disposed in a position separate from the heating member and configured to detect temperature of the heating member. A first function and a second function respectively produce a first corrected temperature value and a second corrected temperature value smaller than the first corrected temperature value with respect to a given detected temperature. The control device is configured to: select the first function to correct the detected temperature at a start of a print control process; switch from the first function to the second function at a prescribed timing during the print control process; and control the power supply unit based on the corrected temperature.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tatsuya Koyama, Yuki Fukusada
  • Patent number: 8705997
    Abstract: An image forming apparatus includes a fusing unit configured to fuse an image formed on a recording medium to a recording medium, at a fusing position where a heater and a rotator nip the recording medium therebetween, and a current-feed controller configured to execute a first current-feed mode of changing a current-feed ratio of current-feed time from an AC power source to the heater to unit time by controlling switching of a switching circuit so that a temperature detected by a temperature detector falls within a target range. The current-feed controller executes a second current-feed mode of fixing the current-feed ratio to almost 100% or almost 0% in place of the first current-feed mode based on a timing when a position detector detects that an end of the recording medium in a conveying direction is located at the fusing position.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: April 22, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takashi Suzuki, Yuki Fukusada, Tetsuya Okano
  • Patent number: 8606126
    Abstract: The image forming apparatus comprises: a first driving section causing an image carrying body carrying a developer image to perform regular rotation or reverse rotation; a fixing section fixing the developer image and conveying a sheet; a second driving section rotating the fixing section; and a control section. The control section controls the first driving section to cause the image carrying body to perform regular rotation such as to convey the sheet and transfer onto the sheet the developer image formed on the image carrying body, and controls the second driving section to cause the fixing section to fix the developer image on the sheet. Further, in a state that the fixing section nips but does not convey the sheet, the control section controls the first driving section to cause the image carrying body to perform reverse rotation so that the image carrying body is cleaned using the sheet.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: December 10, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tetsuya Okano, Yuki Fukusada, Yoshifumi Kajikawa
  • Publication number: 20130207340
    Abstract: An apparatus may be configured to: upon feeding a sheet by a roller, wait for a sheet waiting interval before feeding a next sheet by the roller, determine, using a sensor downstream from the roller in a sheet feeding path, a sensed sheet interval between at least two of the fed sheets; determine whether the sensed sheet interval is equal to or greater than a reference value; and in response to determining that the sensed sheet interval is equal to or greater than the reference value, reduce the sheet feed waiting interval for subsequent feeding of at least one sheet.
    Type: Application
    Filed: February 14, 2013
    Publication date: August 15, 2013
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventor: Yuki Fukusada
  • Publication number: 20130202325
    Abstract: An image forming apparatus includes: a fixing device having a heat source, a heating member, and a backup member; a temperature detecting member; a driving source configured to rotate at least one of the heating member and the backup member; a transmitting mechanism configured to transmit a driving force of the driving source; and a control device configured to control the heat source and the driving source, wherein, after a power is turned on, the control device turns on the heat source before the driving source is driven for the first time, and wherein, when at least one of a condition, where the temperature detected by the temperature detecting member becomes a first temperature, and a condition where a predetermined period elapses after the power is turned on, is satisfied, the control device turns off the heat source and then drives the driving source.
    Type: Application
    Filed: February 8, 2013
    Publication date: August 8, 2013
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Kenji Takeuchi, Kei Ishida, Kaoru Suzuki, Yuki Fukusada
  • Publication number: 20130202324
    Abstract: An image forming apparatus includes: a fixing device: having a heating member, a rotating member, and a temperature sensor; a sheet feeding unit; and a control device configured to perform a sheet feed control: in which the feeding timing is set to a first timing if the temperature gradient of the heating member for a predetermined period is larger than a first threshold value; and in which the feeding timing is set to a second timing later than the first timing if the temperature gradient of the heating member for the predetermined period is equal to or less than the first threshold value, and wherein, in the sheet feed control, the control device changes the first threshold value to a smaller value as the temperature of the heating member at the print-instruction receiving time increase.
    Type: Application
    Filed: February 7, 2013
    Publication date: August 8, 2013
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Kenji Takeuchi, Kei Ishida, Kaoru Suzuki, Yuki Fukusada