Patents Assigned to Ricoh Company
  • Patent number: 8857809
    Abstract: A sheet separation/conveyance device that is included in an image forming apparatus includes an attraction/separation unit including an endless belt on which a region of attraction and a region of no attraction that divides the region of attraction are aligned in a sheet conveying direction, the endless belt configured to hold an uppermost sheet placed on top of a sheet stack contained in an image forming apparatus by using electrostatic attraction, a charger configured to charge a surface of the endless belt, the charger including an electrode configured to contact the surface of the endless belt due to a supply of a voltage and a detector configured to detect a charged condition on the surface of the endless belt based on a detection result obtained when the electrode contacts the endless belt, and a sheet conveying unit configured to convey the uppermost sheet held by the electrostatic attraction.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Tsugunao Toyooka, Manabu Nonaka, Yoshikuni Ishikawa, Satoshi Kuno
  • Patent number: 8861985
    Abstract: A cooling device for an image forming apparatus includes a heat receiver disposed to contact a heated member; a heat releaser to release heat; a coolant circulation passage connecting the heat receiver and the heat releaser in which a coolant circulates between the heat receiver and the heat releaser; a pump configured to convey and circulate the coolant in the coolant circulation passage; a temperature sensor to detect a temperature of a part of the heated portion of the heated member at which a temperature rises; a cooling fan, included in the heat releaser, configured to change a thermal capacity released from the heat releaser based on the temperature detected by the temperature sensor; and a controller to determine presence or absence of a leakage of the liquid or a pump failure by monitoring a control performed by the cooling fan and the temperature detected by the temperature sensor.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Yasuaki Iijima
  • Patent number: 8863300
    Abstract: A license install support method includes receiving input of a first license identifier used for receiving license data, the license data being used by an electronic device for determining whether activation of a program is allowable; sending, to a license source determining device connected via a network, an acquisition request specifying the first license identifier for acquiring issuing source information including issuing source identification information of the license data; receiving the issuing source information returned from the license source determining device; and using a license install processing unit to acquire the license data corresponding to the first license identifier from a license management device relevant to the issuing source information included among plural license management devices connected via the network, and to send the license data to the electronic device.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuuko Sugiura, Tomoya Hirokawa, Xiaofeng Han, Taku Ikawa
  • Patent number: 8857976
    Abstract: An image forming apparatus includes a medium that is a long roll wound around a core member; a feeding unit configured to feed the medium; an image forming unit configured to form an image on the medium; a fixed roll end detecting unit configured to detect an end of the medium whose end is fixed to the core member; a determining unit configured to determine whether to stop, for a time period, the medium on which the image has been formed by the image forming unit, when the fixed roll end detecting unit detects the end of the medium; and a control unit configured to stop an operation of the feeding unit when the determining unit determines to stop the medium for the time period, and to cause the feeding unit to perform an operation of winding back the medium when the time period has elapsed.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Kikuya Nakada, Masato Ogawa, Takashi Hatano
  • Patent number: 8860962
    Abstract: An information processing apparatus includes: a determining unit that determines whether first direction of a document that is first allocated on a first printing sheet in combination, matches second direction, which represents an orientation of a document that is first allocated on a second printing sheet in combination; a changing unit that changes, if the first direction does not match the second direction, an output order of the documents to be printed on the second printing sheet such that, if the orientation of the second printing sheet does not match the first direction after the documents to be output are allocated on the second printing sheet in accordance with a designated combining order, an order in which the documents are arranged when to be printed on the second sheet matches the designated combining order; and an output control unit that outputs the documents in a changed output order.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Limited
    Inventor: Yuta Moribayashi
  • Patent number: 8860970
    Abstract: An image processing apparatus includes a screen information storage unit configured to store screen information of a home screen that displays a user interface component list including an application user interface component for accessing an application, a screen generating unit configured to generate the home screen based on the screen information, a display unit configured to display the home screen generated by the home screen generating unit, an image generation control unit configured to issue an instruction to generate a general-purpose image of a document when a request for scanning the document is issued while the home screen is displayed, and an image processing unit configured to generate the general-purpose image based on image data obtained from scanning the document upon receiving the instruction to generate the general-purpose image from the image generation control unit.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Tomohiro Kuroyanagi
  • Patent number: 8861892
    Abstract: A method and an apparatus for determining a projection area of an image are provided. The method for determining a projection area of an image, comprises: an input step of inputting an image sequence having a plurality of images; a detecting step of detecting locations of projection areas of the respective images in the image sequence; a relationship classification judging step of judging a relationship classification between the image and a previous image before the image being projected based on a relationship between the location of the projection area of the image and the location of the projection area of the previous image; and a determining step of determining the locations of the projection areas of the respective images based on the relationship classification judged in the relationship classification judging step.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Haihua Yu, Hong Yi, Wei Wang
  • Patent number: 8861036
    Abstract: An image forming apparatus having density correction characteristic data and a section to execute density conversion on input image data includes a section to generate detecting patterns with multiple area ratios, a section to create images of the patterns on an image bearing member, a section to detect the images of the patterns created on the image bearing member, a section to hold detected values corresponding to the images of the patterns detected from the image bearing member, a section to obtain fixed values or previously detected values as target values for correction, and correction coefficients, a section to calculate a correction characteristic corresponding to the detecting patterns from the obtained target values, the detected values, and correction coefficients, and a section to synthesize new density correction characteristic data from the density correction characteristic data and the correction characteristic corresponding to the patterns.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Takehiro Nakajima
  • Patent number: 8860346
    Abstract: Disclosed is an angle detection device including plural sensors that output corresponding sinusoidal signals, wherein each of the sinusoidal signals varies sinusoidally depending on a rotational angle of a rotor of a motor, and each of the sinusoidal signals has a phase that depends on a position of the corresponding sensor; a vector generating unit that generates a vector represented by a result of mutually operating at least two of the sinusoidal signals; a vector rotation unit that rotates the vector by operating the vector and reference sine waves having corresponding phases; and an angle search unit that causes the vector rotation unit to sequentially rotate the vector until a phase of the vector becomes a predetermined phase, and that detects an angle between the vector prior to being rotated and the predetermined phase as the rotational angle of the rotor of the motor.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Fumihiro Shimizu, Haruyuki Suzuki, Tomohiko Kamatani, Katsuhisa Furuse
  • Patent number: 8861994
    Abstract: An image forming apparatus includes a forced toner consumption controller which executes a forced toner consumption control; a toner supply controller which executes a toner supply control; and a pre-job controller which, upon receipt of an image forming job, and before the start of the job, acquires a toner consumption index value, determines a specific target image density based on the acquired index value, executes a previous toner consumption and supply control including the forced toner consumption control and the toner supply control that makes a toner concentration in a developer of a development device subjected to the forced toner consumption control approach a specific target toner concentration, and then executes a previous image density adjustment control that adjusts one or more image forming conditions to make an image density after the previous toner consumption and supply control approach the specific target image density.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroki Ishii
  • Patent number: 8862003
    Abstract: According to an embodiment, provided is an image forming apparatus that forms an image on a moving body using toner. The image forming apparatus includes a pattern creating device that creates a first pattern for toner density detection and a second pattern for positional deviation detection on the moving body, the first pattern and second pattern being disposed to be arrayed in a main-scanning direction; a reflecting optical sensor including an emitting system that includes at least three light-emitting elements of which positions at least in the second direction are different and a light-receiving system that includes at least three light-receiving elements that receive light beams that are emitted from the emitting system and reflected from the first pattern and second pattern; and a processing device that obtains toner density information and positional deviation information simultaneously based on an output signal of the light-receiving system.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Hidemasa Suzuki, Koji Masuda
  • Patent number: 8862489
    Abstract: A project management system manages project schedule data using project task state data. The project task state data indicates the current state of project tasks and is used to determine which project tasks are to be included in a member schedule editor, member schedule reports and inspection reports. The project management system also provides support for various inspection functionality. This includes, for example, identifying and naming inspection material for use in inspection meeting forms and inspection meeting documents. The inspection functionality also includes generating an inspection index and an inspection statistics report.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Tetsuro Motoyama, Avery Fong
  • Patent number: 8861245
    Abstract: A control circuit board includes a first storage unit configured to store therein predetermined data; a connecting unit configured to be connected to another control circuit board including a second storage unit; a switching unit configured to switch between a first state and a second state, the first state being a state in which data read from the first storage unit is enabled but data read from the second storage unit is disabled, the second state being a state in which data read from the first storage unit is disabled but data read from the second storage unit is enabled; and a storage control unit configured to write or read data to or from the first storage unit in the first state, and perform a copying operation that reads the data from the second storage unit and stores the read data in the first storage unit in the second state.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Limited
    Inventor: Kenichi Watanabe
  • Patent number: 8861018
    Abstract: An image processing apparatus includes a character identifying unit configured to identify character data of black from color image data; a character data generating unit configured to add character data of a color other than black to the character data of black as additional character data to generate combined character data; and a character data correcting unit configured to perform thinning process of making a line of a character of the additional character data thinner than a line of the character data of black.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Limited
    Inventor: Yuuki Sagimori
  • Patent number: 8862010
    Abstract: A fixing device to perform a fixing process includes an endless, rotatable belt member; a nip-forming rotary member disposed outside a loop of the belt member; a fixing roller disposed at a backside of the fixing nip inside the loop of the belt member and around which the belt member is rotatably stretched; a heater to heat the belt member at a position different from a position where the belt member is rotatably stretched around the fixing roller; a temperature detector; a memory device to store an operational history of the heater; and a processor operatively connected to the heater to control the heater, before the recording sheet is passed through the fixing nip, to perform a warming-up operation to raise a temperature of the fixing roller at the backside of the fixing nip based on the operational history of the heater stored in the memory device.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Yohei Ando
  • Patent number: 8859184
    Abstract: A write-only-read-many type optical recording medium includes a substrate, an organic material layer having a light absorption function that is sufficient for recording in the recording/reproduction wavelength range, the organic material layer being situated on the substrate, and a reflection layer being situated on the organic material layer. The recording medium is configured to have a Low-to-High recording property and record with a laser having a wavelength that is no greater than 500 nm.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Noboru Sasa
  • Patent number: 8861791
    Abstract: Disclosed are a road line detection method and a road line detection device. The road line detection method comprises a step of obtaining a first disparity map including one or more road regions and a corresponding V-disparity image; a step of sequentially detecting plural sloped line segments in the corresponding V-disparity image according to a big-to-small order of disparities and a big-to-small order of V-values, to serve as plural sequentially adjacent road surfaces; a step of obtaining a second disparity map of plural road line regions of interest corresponding to the plural sloped line segments; and a step of detecting one or more road lines in the second disparity map of the plural road line regions of interest.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Ganmei You, Jichuan Zheng
  • Patent number: 8861048
    Abstract: An image scanner includes a stationary original plate on which a stationary original is placed and a moving original plate, over which a moving original is conveyed, aligned with the stationary original plate in a sub-scanning direction and tilted relative to the stationary original plate by a given angle. A reader is movable in the sub-scanning direction between a stationary original reading span disposed opposite the stationary original via the stationary original plate to read an image on the stationary original and a moving original reading position disposed opposite the moving original via the moving original plate to read an image on the moving original. The reader pressingly contacts the stationary original plate and the moving original plate as the reader moves in the sub-scanning direction.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Narai, Yasunobu Youda, Taku Kudoh, Takayuki Andoh, Koji Hatayama, Yohei Osanai
  • Patent number: 8862473
    Abstract: A comment recording apparatus, including a voice input device and a voice output device for recording and playing back comment voice, includes a voice obtaining unit, a voice recognition unit, a morphological analysis unit, and a display generation unit. The voice obtaining unit obtains comment voice as voice data, and registers the obtained voice data to a voice database for each topic specified by a topic specification device and each comment-delivered participant identified from the voice data. The voice recognition unit conducts a voice recognition process on the voice data to obtain text information. The morphological analysis unit conducts a morphological analysis on the text information, and registers a keyword extracted from words obtained by the morphological analysis unit to a keyword database with topic and comment-delivered participant along with voice. The display generation unit displays the keyword in a matrix while relating the keyword to a topic and a comment-delivering participant.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Makoto Shinnishi, Soichiro Iga, Masashi Nakatomi
  • Patent number: D715323
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: October 14, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Asaki Umezawa, Sachiko Fukumaru, Daisuke Taniuchi, Mikane Ichikawa, Ryo Furutani