Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


MACHINE OPERATION

Subclass of:

399 - Electrophotography

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
399088000 Having power supply 168
399082000 Job mode 98
399090000 Electrical connection 89
399081000 Operator interface (e.g., display control panel) 53
399079000 Accounting 24
399076000 Sequential control 9
Entries
DocumentTitleDate
20100104311Image Forming Apparatus - An image forming apparatus is swung with a stopper which is swingable simultaneously with a switching member, and which allows rotation of an output gear by being disengaged from the output gear with a swinging movement of the switching member to an ON side, and which stops the rotation of the output gear by being engaged with the output gear with a swinging movement of the switching member to an OFF side. When the switching member is swung to the OFF side, the stopper is engaged with the output gear at the same time as the switching member is disengaged from the triggering member or before the switching member is disengaged from the triggering member. Accordingly, a descent of a pressing plate at the time of stopping the pressing plate is prevented without using a one-way clutch.04-29-2010
20130089351MANAGEMENT APPARATUS THAT MANAGES A PLURALITY OF IMAGE FORMING APPARATUSES, MANAGEMENT SYSTEM, AND METHOD OF CONTROLLING MANAGEMENT APPARATUS - A management apparatus that enhances efficiency of maintenance work of a plurality of image forming apparatuses. An apparatus management server is connected to a plurality of image forming apparatuses via a network. Each image forming apparatus includes a storage unit for storing information indicative of wear levels of members for outputting a color image, on a color-by-color basis. The management service acquires the information from each image forming apparatus, and selects an image forming apparatus for outputting an image based on the acquired information such that differences between the wear levels of the members become smaller between the image forming apparatuses.04-11-2013
20120219313IMAGE FORMING APPARATUS - An image forming apparatus includes a unit, which is detachably attachable to a main body of the apparatus and has a portion to be detected, and a detecting device which detects the portion to be detected in the unit. It is determined that the unit is in an unused state since both of a first state in which the portion to be detected is detected by the detecting device and a second state in which the portion to be detected is not detected by the detecting device are confirmed, and thereafter, the first state or the second state is maintained. Furthermore, there is provided a restricting member which inhibits the first state or the second state from being maintained.08-30-2012
20090010670Image forming apparatus and image forming method - It is judged whether a sufficient time for executing all of three correction processings (a high density correction processing, a halftone correction processing, and a registration correction processing) can be secured or not. When the sufficient time cannot be secured, the high density correction processing as an essential correction processing is executed. A history of the halftone correction processing and a history of the registration correction processing are compared with each other. A date of latest execution of the halftone correction processing and a date of latest execution of the registration correction processing are compared with each other to judge whether or not the execution of the halftone correction processing is earlier, and the registration correction processing and the halftone correction processing are executed, respectively.01-08-2009
20110170892Drive transmission device and image forming apparatus including same - A drive transmission device including at least one drive source, a drive transmission member, and a drive gear train. The drive transmission member includes an engaging part that engages a first rotary body provided within a unit detachably attachable to an image forming apparatus and a gear part that engages a motor gear attached to the at least one drive source. The engaging part and the gear part are formed together as an integrated unit. The drive gear train that transmits a driving force from the at least one drive source to a second rotary body provided within the unit includes a first gear and a second gear. The first gear engages the motor gear and the second gear is attached to the drive transmission member.07-14-2011
20110262171Printing Device Having Correcting Function - A correction unit executes a correcting function for measuring at least one of position and density of a test image in response to a correction instruction and correcting an operation setting of a printing unit based on the measurement result. Print data includes correction requiring data that is required to execute the correcting function by the correction unit before an image corresponding to the correction requiring data is printed. A determining unit is configured to determine whether or not at least one of two conditions is satisfied. One condition is such that a ratio of a second numerical value represented by the correction requiring data to a first numerical value represented by the print data is less than a first reference value. Another condition is such that the second numerical value is less than a second reference value. When the determining unit determines that the at least one of two conditions is satisfied, the control unit bypasses the measurement by the correction unit even if a receiving unit receives the correction instruction.10-27-2011
20090003869Image forming apparatus - An image forming apparatus includes an opening-closing lid for opening and closing an opening portion formed in an apparatus main body; a detection unit for detecting an open state of the opening-closing lid; an execution unit for executing a specific operation; a main power source for supplying power to the execution unit; a retaining unit for retaining an open history indicating the open state of the opening-closing lid when the detection unit detects the open state of the opening-closing lid during a period of time when the main power source does not supply power to the execution unit; and a determining unit for determining whether the execution unit executes the specific operation according to the open history retained in the retaining unit when the main power source starts supplying power to the execution unit.01-01-2009
20090285594IMAGE FORMING APPARATUS - A process unit is removably attached inside a main body of an image forming apparatus. The process unit includes a casing and a latent image carrier housed inside the casing. The latent image carrier can rotate in a forward direction and a reverse direction. An ID chip is provided in the process unit for storing various information. A communication unit arranged in the main body can communicate with the electronic-information storage unit to write information in or read information from the ID chip. A control unit provides control so that the communication unit does not communicate with the ID chip when the latent image carrier is rotating in the reverse direction.11-19-2009
20090290896PRINT ENGINE SYNCHRONIZATION SYSTEM AND APPARATUS - A print engine synchronization system apparatus enables the movement of a first print engine dielectric support member (DSM) having one or more image frames as well as the movement of a second print engine DSM having one or more image frames by monitoring a first frame signal from the moving first print engine DSM and a second frame signal from the moving second print engine DSM. An offset is determined for each of corresponding pairs of frames from the one or more image frames of the first and second print engine DSM and the determined offset for each corresponding pair of frames is compared to a target offset to maintain synchronization between the first and second print engines on a frame by frame basis by adjusting a second print engine DSM velocity based on the comparison of the determined offset and the target offset.11-26-2009
20080285997Image forming apparatus, image forming method, and storage medium - An image forming apparatus, an image forming method, and a storage medium. The image forming apparatus includes a memory, a frame creator to create at least one rendering frame in the memory, a renderer to render rendering data on the at least one rendering frame based on print data, and a control device to arrange the rendering data according to a sequence of the print data in duplex printing.11-20-2008
20090317118IMAGE FORMING APPARATUS - A color printer of the invention is controlled to select DC motors needed to be newly activated according to a print mode when a print job occurs, determine an activation start time of each selected DC motor by sequentially going back activation times stored in relation to the selected DC motors from an image start reference time, activate one or ones of the DC motors to be activated according to the determined activation start times, measure an actual activation time of the activated DC motor and update a stored content about the activation time based on a measurement result of the actual activation time, and determine an activation start time of each DC motor based on the updated activation time. An image forming apparatus capable of preventing the motors from rotating more than necessary and effectively utilizing the life of components to be driven by the motors can be provided.12-24-2009
20080292351IMAGE FORMING APPARATUS AND ELECTRIC APPLIANCE - A thermoelectric conversion element converts thermal energy of a user into electric power. A holding unit holds the electric power converted by the thermoelectric conversion element, and outputs the electric power. A switching unit switches between a first mode in which electric power is supplied to all units of an image forming apparatus and a second mode in which electric power is supplied to a part of units of the image forming apparatus. When the image forming apparatus is in the second mode, the switching unit switches from the second mode to the first mode upon receiving the electric power output from the holding unit.11-27-2008
20100322661PRINT OUTPUT SYSTEM, PRINT CONTROL APPARATUS, AND METHOD FOR THE SAME - A system, a control apparatus, a control method and a computer program are provided which are configured to control a printing output in response to characteristics of a printing apparatus when a plurality of printing apparatuses has different characteristics. A host computer acquires apparatus information including characteristics information indicating the characteristics of a printer and thereby determines a priority order of printers in relation to the print data based on the characteristics information. The host computer then determines a printer to output the print data based on the determined priority order and outputs the print data to the determined printer.12-23-2010
20110176825IMAGE FORMING SYSTEM, AND CONTROL APPARATUS, CONTROL METHOD AND STORAGE MEDIUM THEREFOR - An image forming system capable of immediately responding to a job command given by a user, reducing power consumption, and preventing the service life of component parts from being adversely affected. In a case where no printing is to be performed, a main controller of the image forming system controls each of first and second image forming apparatuses of the image forming system to assume either a standby state or a sleep state. In a case where printing is to be performed, the main controller controls each of the first and second image forming apparatuses to assume either the standby state or the sleep state according to whether double-sided printing should be performed or single-sided printing should be performed.07-21-2011
20120201560Apparatus and Method for Destroying an Encoder Wheel - Image recording devices, such as electrophotographic devices, laser printers, copiers, and fax machines, often have a cartridge that utilizes an encoder wheel assembly in addition to or instead of a chip for determining toner load. It may be desirable to alter the encoder wheel or part of the cartridge, either by the printer or the cartridge, to permit a deliberate end of life function situation that requires the replacement of the cartridge, encoder wheel, or encoder wheel assembly components. This thereby controls the remanufacture or replacement of the toner cartridge in a way that is desirable to the manufacturer and prevents unauthorized refilling of the cartridge.08-09-2012
20110020025Image forming system - An image forming system is provided with an Image Forming Operation Unit, an Air Cleaning Operation Unit, a power source, and a Control Unit. The Control Unit has a coordinated OFF control function of coordinating a first power supply OFF control for turning off power supply from the power source to the Image Forming Operation Unit and a second power supply OFF control for turning off power supply from the power source to the Air Cleaning Operation Unit, and the coordinated OFF control function is configured to execute the second power supply OFF control when a preset time period elapses after executing the first power supply OFF control. Also, in the image forming system, an air cleaning operation of an air cleaning apparatus is stopped when an image forming apparatus is set to an a night mode or when a fixed time period elapses after the night mode is set. The air cleaning operation of the air cleaning apparatus is restarted when the image forming apparatus is resumed from the night mode.01-27-2011
20100329723IMAGE FORMING APPARATUS, METHOD OF CONTROLLING THE SAME, AND PROGRAM - This invention provides an image forming apparatus which performs sleep control for a shift to the sleep mode for each function and provides a user-friendly operation system, and a method of controlling the same. To accomplish this, the image forming apparatus sets a shift time until a power state of the image forming apparatus shifts to the low-power state after execution of image formation; and performs control to shift the power state of the image forming apparatus to the low-power state, when the shift time is not more than the predetermined time, before an elapse of the shift time after execution of image formation by the printing function, while shifting the power state of the image forming apparatus to the low-power state, in response to an elapse of the shift time after execution of image formation by the copying function.12-30-2010
20100021197IMAGE FORMING APPARATUS - An image forming apparatus capable of toggling between image formation mode and energy conservation mode, the image formation mode allowing image formation on a recording medium, and the energy conservation mode having power consumption lower than that of the image formation mode, the image forming apparatus including: a constantly-energized portion that is energized both in the image formation mode and the energy conservation mode; a non-constantly-energized portion that is energized only in the image formation mode; and an opening/closing member capable of exposing an internal mechanism held inside a casing of the image forming apparatus, in which the constantly-energized portion toggles from the energy conservation mode to image formation mode when the opening/closing member is closed from an opened state in the energy conservation mode.01-28-2010
20130170850POWER SUPPLY DEVICE PERFORMING VOLTAGE CONVERSION - In a power supply device, the controller outputs a control signal specifying a voltage value. The voltage conversion unit converts a first voltage to a second voltage in response to a control signal specifying a voltage value output from the controller. The voltage conversion unit converts the first voltage to a start voltage, as the second voltage, in response to a first control signal specifying a start voltage value output from the controller and further converts the first voltage to a target voltage, as the second voltage, in response to a second control signal specifying a target voltage value output from the controller. A transition period of time is intervened between generation of the start voltage and generation of the target voltage during which the controller outputs a third control signal specifying the intermediate voltage value between the start voltage value and the target voltage value.07-04-2013
20120134704IMAGE FORMING APPARATUS INCLUDING CHIP HAVING ENGINE PROCESSOR AND BASIC PROCESSOR - An image forming apparatus including a chip having an engine processor and a basic processor includes an image forming unit which has an image forming engine and forms an image of given image data, an engine processor to control a driving of the image forming engine, and a basic processor which is integrally provided with the engine processor and controls processes related to image formation except the driving of the image forming engine.05-31-2012
20120134703IMAGE FORMING APPARATUS INCLUDING CHIP HAVING ENGINE PROCESSOR AND BASIC PROCESSOR - An image forming apparatus including a chip having an engine processor and a basic processor includes an image forming unit which has an image forming engine and forms an image of given image data, an engine processor to control a driving of the image forming engine, and a basic processor which is integrally provided with the engine processor and controls processes related to image formation except the driving of the image forming engine.05-31-2012
20110236049IMAGE FORMING APPARATUS - An image forming apparatus including: a memory unit to store various pieces of information; and a control unit to execute backup control to store information stored in the memory unit into an external memory device and to make the image forming apparatus shift from an operating state to a predetermined standby state, wherein with the backup control, the control unit makes the image forming apparatus shift from the operating state to the standby state.09-29-2011
20120328319IMAGE FORMING APPARATUS - An image forming apparatus includes an image forming section that forms an image on a recording material; an image reading device that is disposed above the image forming section, and reads an image on an original; a connecting section that is disposed at either one of end sides of an apparatus housing in a lateral direction thereof, and that connects the image forming section and the image reading device to each other; an operating section that is disposed in front of the image reading device, and that is operated by a person; a human detecting device that detects the person operating the operating section; a discharging section that discharges the recording material on which the image has been formed by the image forming section to a placing section; and the placing section on which the recording material discharged from the discharging section is placed.12-27-2012
20110158673PRINTING APPARATUS, PRINTING METHOD, AND COMPUTER-READABLE STORAGE MEDIUM FOR IMPLEMENTING THE PRINTING METHOD - A printing apparatus connected to another printing apparatus to feed sheets to the another printing apparatus includes a reception unit configured to receive, from another printing apparatus, stop detection information regarding timing of a printing stop in another printing apparatus, and a control unit configured to feed sheets for performing printing up to a page indicated by the stop detection information received by the reception unit, perform printing on the sheets to prevent retention of the fed sheets, and cancel feeding preparation of the sheets for printing the page indicated by the stop information and succeeding pages.06-30-2011
20090290895METHOD FOR PRINT ENGINE SYNCHRONIZATION - A print engine synchronization method enables the movement of a first print engine dielectric support member (DSM) having one or more image frames as well as the movement of a second print engine DSM having one or more image frames by monitoring a first frame signal from the moving first print engine DSM and a second frame signal from the moving second print engine DSM. An offset is determined for each of corresponding pairs of frames from the one or more image frames of the first and second print engine DSM and the determined offset for each corresponding pair of frames is compared to a target offset to maintain synchronization between the first and second print engines on a frame by frame basis by adjusting a second print engine DSM velocity based on the comparison of the determined offset and the target offset.11-26-2009
20130129371IMAGE FORMING APPARATUS - When a pre-rotation sequence is started at a time at which a print-start notification command is transmitted, in the case where a predicted time period is longer than a time period taken to perform the pre-rotation sequence, an appropriate FPOT is not realized. To determine whether the pre-rotation sequence can be started at a time at which a print reservation command that is to be transmitted before transmission of the print-start notification command is transmitted to the engine, a drum-rotation permission command is provided, whereby, in the case of immediately starting the pre-rotation sequence, the pre-rotation sequence can be started earlier than the pre-rotation sequence is started, reducing the FPOT. In the case of not immediately starting the pre-rotation sequence, a time period taken to perform image expansion and the time period taken to perform the pre-rotation sequence can be made to coincide with each other, reducing consumable items deterioration.05-23-2013
20100316405IMAGE FORMING APPARATUS, RETURN PROCESSING METHOD, AND PROGRAM - An image forming apparatus, which has a plurality of operation modes with different power supply conditions, includes an electric-energy accumulating unit for calculating electric energy consumption in a current operation mode; a return-time calculating unit for calculating a return time taken for the image forming apparatus to return from an energy reduction mode, which is the operation mode in which part of the image forming apparatus is supplied with electric power, to a normal mode, which is the operation mode in which the whole image forming apparatus is supplied with electric power, on the basis of the calculated electric energy consumption and an upper limit of electric energy, which is predetermined as maximum electric energy consumption in a certain period of time; and a mode control unit for making the image forming apparatus return from the energy reduction mode to the normal mode on the basis of the calculated return time.12-16-2010
20130156457IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes an engine configured to perform image formation; an engine control unit configured to control the engine; an apparatus control unit configured to control the whole of the apparatus; a storage unit; and a state management unit configured to set the apparatus to a power-saving mode in which the apparatus control unit and the storage unit are supplied with power while the engine, and the engine control unit are not supplied with power when a main power supply is turned on. When the apparatus is set to the power-saving mode, the apparatus control unit reads out second engine information that represents a configuration of the engine from the storage unit and performs a start-up process on the apparatus control unit on the basis of the second engine information.06-20-2013
20130209132IMAGE PROCESSING APPARATUS, CONTROL METHOD THEREOF, AND STORAGE MEDIUM - The present invention provides an image processing apparatus for performing a process of transiting to a power-off state or sleep state in accordance with the connected state of an interface, a control method thereof, and a storage medium. To accomplish this, if a condition for changing the power state of this image processing apparatus is satisfied, the image processing apparatus confirms an interface which is able to communicate with an external apparatus, and determines whether the image processing apparatus can transit to the sleep state based on the confirmation result. If it is determined that the image processing apparatus transits to the sleep state, the image processing apparatus is transited to the sleep state. If it is determined that the image processing apparatus does not transit to the sleep state, the image processing apparatus is turned off.08-15-2013

Patent applications in class MACHINE OPERATION

Patent applications in all subclasses MACHINE OPERATION