Class / Patent application number | Description | Number of patent applications / Date published |
399010000 | Log report | 11 |
20080205910 | Component identification system and method - A component identification system and method, including an identifier associated with a replacement component, a memory to store one or more identifiers for each previously used component corresponding to the replacement component, and a processor to compare the identifier of the replacement component with the one or more stored identifiers of each previously used component. The replacement component is acceptable where the identifier of the replacement component differs from the one or more stored identifiers of each previously used component, and the replacement component is unacceptable where the identifier of the replacement component corresponds to one or more stored identifiers of each previously used component. Prior to accepting the replacement component, one or more predetermined validation operations can be performed on the identifier of the replacement component, with the identifier being formed in a serial number or code type scheme. | 08-28-2008 |
20080317478 | Image forming apparatus - An image forming apparatus is supplied capable of adopting low price structure to obtain information that is stored in a storing section and is used for analyzing reason of failure/repair. The image forming apparatus performs an image formation by using an exchanging unit having a mounting section to mount an unit information store use memory and stores unit information including use status of the exchanging unit into the unit information store use memory, and comprises a history information storing section in which history information of the image forming apparatus is stored; an apparatus information store use memory which is mounted onto the mounting section to replace the unit information store use memory; a judging section which judges which of the unit information store use memory and the apparatus information store use memory is mounted in the mounting section; and a store controlling section which controls the apparatus information store use memory to store the history information in the case that the apparatus information store use memory is judged being mounted. | 12-25-2008 |
20100080572 | PRINTING DEVICE, PRINTING SYSTEM, AND COMPUTER USABLE MEDIUM THEREFOR - A printing apparatus connectable with an external storage device is provided. The printing apparatus includes a printer unit to execute a printing operation to print an image in a current print job, a print log provider to provide a print log, which indicates a record of the printing operation for the current print job, to the external storage device, a print log obtainer to obtain a preceding print log, indicating a record of an earlier printing operation executed earlier in the printing apparatus, provided to and stored in the external storage device, a print log examiner to examine the preceding print log and determine normality of the preceding print log based on the record of the earlier print operation, and a controller to permit the printer unit to print the image and restrict the printer unit from printing the image depending on normality of the obtained print logs. | 04-01-2010 |
20100272450 | METHOD AND SYSTEM FOR MANAGING SERVICE INTERVALS FOR RELATED COMPONENTS - A method and system for managing one or more high frequency service items associated with a device. A parent/child relationship between the high frequency service items can be defined to track replacement of components based on a service action related to a child component. A taxonomy of related service items and servicing functions can be specified in an XML document associated with the rendering system. The relationship between the high frequency service items can be indicated utilizing a related component indicator and a HFSI counter. A parent component can be replaced by a maintenance operator and an aggregate child component can be rebuilt by a service engineer in order to retain the component life thereby reducing down time and service costs. | 10-28-2010 |
20110052217 | IMAGE FORMING APPARATUS AND IMAGE FORMING APPARATUS CONTROL METHOD - An image forming apparatus according to the present invention includes: a fixing part having a heater; a control part controlling ON/OFF of power distribution to the heater; a power source part generating a voltage for driving the control part; a main switch for turning ON/OFF power supply from outside to the power source part; and an interrupt signal generation part generating a periodical interrupt signal. The control part, based on the interrupt signal, controls ON/OFF of the power distribution to the heater, turns OFF power supply to the heater upon passage of predetermined time since disappearance of the interrupt signal, and judges that an error has occurred, when the control part is still driving after passage of driving stop time from when the main switch is turned OFF to when the control part stops its driving since the disappearance of the interrupt signal. | 03-03-2011 |
20110211848 | IMAGE FORMING APPARATUS - An image forming apparatus include an image bearing member, a developing container receiving a developer, a developer carrying member for carrying and conveying the developer, a developer feed member for supplying the developer to the developer carrying member, a detection device for detecting an amount of developer in the developing container by detecting an electrostatic capacitance between the developer carrying member and the developer feed member, and a control device for changing a rotational speed of the developer feed member into a plurality of speeds corresponding to the plurality of image forming speeds. The control unit controls the rotational speed of the developer feed member prior to the execution of a detection operation of the detection device so as to be faster than the slowest speed of said plurality of speeds. | 09-01-2011 |
20120219304 | IMAGE FORMING APPARATUS - An image forming apparatus includes a detachably replaceable image forming unit for forming an image on a medium, the image forming unit including a component for forming the image on the medium and a first storage section for storing life information, use amount information, and use purpose information of the component; a read-write section for reading and writing information in the first storage section; a life management section for managing life of the image forming unit; and a second storage section for storing the life information and the use amount information read from the first storage section by the read-write section; the life management section rewriting the life information stored in the first storage section by the first storage section in accordance with the use purpose information stored in the first storage section and the use amount information stored in the second storage section. | 08-30-2012 |
20130101301 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus for forming an image based on an electrophotographic process applied to image data that represents the image includes a device configured to perform a periodic movement for image formation, a storage unit configured to store a table for correcting density variation caused by the device, the table initially generated when a physical property of the device is in a reference state, a prediction unit configured to predict an amplitude of the variation caused when the physical property is in a state different from the reference state, and an adjustment unit configured to adjust the table based on the amplitude predicted by the prediction unit. | 04-25-2013 |
20130136459 | INFORMATION PROCESSING APPARATUS AND CONTROL PROGRAM - An information processing apparatus includes a maintenance staff information store part that stores maintenance staff identification information, a maintenance staff authentication part that determines an authentication success when identification information, which is input from an operation panel, is identical to the maintenance staff identification information, a maintenance history store part that, when a replacement of a consumable item is performed, stores the maintenance staff identification information as well as information of the consumable item that was used before the replacement, and an output part that outputs the maintenance staff identification information that was authenticated at the time of the replacement of the consumable item as well as the information of the consumable item that is stored in the maintenance history store part, the consumable item being used before the replacement. | 05-30-2013 |
20130308961 | IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING DEVELOPING UNIT THEREOF - An image forming apparatus is provided. The image forming apparatus includes a developing unit which contains a mixture of toner and carrier, a toner sensor which is disposed in the developing unit, and a controller which determines a control voltage for the toner sensor using change information on a change in a quantity of electric charge which changes according to a time during which the image forming apparatus is used or paused, and drives the toner sensor using the determined control voltage and compensates for an output value of the toner sensor. Accordingly, toner can be prevented from being supplied excessively. | 11-21-2013 |
20150316883 | HISTORY STORAGE DEVICE, IMAGE FORMING APPARATUS AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING PROGRAM - A history storage device includes: a storage unit that, in storing first history information including phenomenon information corresponding to a phenomenon having occurred and accompanying information accompanying the phenomenon information in a storage region, when the phenomenon information included in the first history information is duplication of phenomenon information included in second history information having already been stored in the storage region, deletes the phenomenon information included in the first history information and stores, in the storage region, the accompanying information which is included in the first history information and is associated with the phenomenon information; and a reconstruction unit that, in reading out the first history information from the storage region, based on the phenomenon information with which the accompanying information included in the first history information is associated, reconstructs the deleted phenomenon information, to thereby reconstruct the first history information including the phenomenon information and the accompanying information. | 11-05-2015 |