Patent application number | Description | Published |
20120021318 | FUEL CELL, METHOD FOR OPERATING FULL CELL AND FUEL CELL SYSTEM - A fuel cell, a method for operating a fuel cell and a fuel cell system, which ensure no dew condensation for a wet reaction gas in the inlet area of gas channels in plates in a fuel cell stack, are provided. Gas channels | 01-26-2012 |
20120077103 | FUEL CELL, METHOD FOR OPERATING FULL CELL AND FUEL CELL SYSTEM - In a fuel cell stack, gas channels and heat medium channels are disposed on one surface and the other surface of one plate, respectively. Gas channels are disposed on the other plate such that they face the gas channels in the one plate. A gas inlet header is disposed at the upper part of the gas channel in the plate and a heat medium inlet header is disposed at the upper part of the heat medium channels such that they face the gas inlet header on the other side. Cooling water as a heat medium is supplied from a heat medium supply manifold hole to a heat medium inlet header. Water vapor in the reaction gas (wet fuel gas) is prevented from being condensed in the inlet area of the gas channels by heating the gas inlet header by heat conduction. | 03-29-2012 |
20120082908 | FUEL CELL, METHOD FOR OPERATING FUEL CELL AND FUEL CELL SYSTEM - A fuel cell, a method for operating a fuel cell and a fuel cell system, which ensure no dew condensation for a wet reaction gas in the inlet area of gas channels in plates in a fuel cell stack. Gas channels and heat medium channels are disposed on one surface and the other surface of one plate, respectively. Gas channels are disposed on the other plate such that they face the gas channels in the plate. A gas inlet header is disposed at the upper part of the gas channel in the plate and a heat medium inlet header is disposed at the upper part of the heat medium channels such that they face the gas inlet header on the other side. Cooling water such as heat medium is supplied from the heat medium supply manifold hole to the heat medium inlet header, thereby warming up the same. | 04-05-2012 |
20120088166 | FUEL CELL, METHOD FOR OPERATING FUEL CELL AND FUEL CELL SYSTEM - A fuel cell system comprising a fuel cell having plural membrane-electrode assemblies and plates, fuel and oxidant humidifiers and heater exchanger. Heat exchange between a supply inlet and discharge outlet is carried out between first and second heat exchange mediums. Fuel gas and oxidant gas are directed to flow parallel to each other in the fuel cell. A circulation path is established through the fuel and oxidant humidifiers and the heat exchanger by interconnection among discharge outlet, heat exchanger, fuel and oxidant humidifiers, and inlet. | 04-12-2012 |
20120276396 | VACUUM FILM FORMATION METHOD AND LAMINATE OBTAINED BY THE METHOD - A method of continuously subjecting an elongated substrate to vacuum film formation is disclosed. The method comprises the steps of: feeding a first substrate from a first roll chamber in a first direction from the first roll chamber toward a second roll chamber; degassing the first substrate; forming a film of a second material on the first substrate, in a second film formation chamber; and rolling up the first substrate in the second roll chamber, thereby producing the first substrate, and comprises similar steps to produce a second substrate. In advance of producing the first substrate with the second material film, the first cathode electrode of the first film formation chamber is removed from the first film formation chamber, and, in advance of producing the second substrate with the first material film, the second cathode electrode of the second film formation chamber is removed from the second film formation chamber. | 11-01-2012 |
20120276397 | VACUUM FILM FORMATION METHOD AND LAMINATE OBTAINED BY THE METHOD - A method of continuously subjecting an elongated substrate to vacuum film formation is disclosed. The method comprises the steps of: feeding a first substrate from a first roll chamber in a first direction from the first chamber toward a second roll chamber; degassing the first substrate; forming a film of a second material on the first substrate, in a second film formation chamber; and rolling up the first substrate in the second roll chamber, thereby producing the first substrate, and further comprises similar steps to produce a second substrate. In advance of producing the first substrate with the second material film, the first cathode electrode of the first film formation chamber is removed from the first film formation chamber, and, in advance of producing the second substrate with the first material film, the second cathode electrode of the second film formation chamber is removed from the second film formation chamber. | 11-01-2012 |
20130029161 | METHOD FOR DOUBLE-SIDE VACUUM FILM FORMATION AND LAMINATE OBTAINABLE BY THE METHOD - The film formation method comprises the steps of: unrolling and feeding an elongated substrate wound in a roll form from a first roll chamber in a direction from the first roll chamber toward a second roll chamber, using a first surface as a surface for film formation; degassing the fed substrate; forming a first material film on the first surface of the degassed substrate in a first film formation chamber; forming a second material film on the first material film in a second film formation chamber; taking up the substrate in a roll form in the second roll chamber, the substrate having the material films formed thereon; unrolling and feeding the taken up substrate from the first roll chamber in the direction, using a second surface opposite the first surface of the substrate as a surface for film formation; and repeating all the above treatments. | 01-31-2013 |
20130029162 | METHOD FOR DOUBLE-SIDE VACUUM FILM FORMATION AND LAMINATE OBTAINABLE BY THE METHOD - The film formation method comprises the steps of: unrolling and feeding an elongated substrate wound in a roll form from a first roll chamber in a first direction from the first roll chamber toward a second roll chamber, using a first surface as a surface for film formation; degassing the substrate fed in the first direction; forming a second material film on the first surface of the substrate in a second film formation chamber; taking up the substrate in a roll form in the second roll chamber, the substrate having the second material film formed thereon; unrolling and feeding the substrate from the second roll chamber in a second direction from the second roll chamber toward the first roll chamber; forming a first material film on the second material film in a first film formation chamber; taking up the substrate in a roll form in the first roll chamber. | 01-31-2013 |
20130029163 | METHOD FOR DOUBLE-SIDE VACUUM FILM FORMATION AND LAMINATE OBTAINABLE BY THE METHOD - The film formation method comprises the steps of: unrolling and feeding an elongated substrate wound in a roll form from a first roll chamber in a first direction from the first roll chamber toward a second roll chamber; degassing the fed substrate; forming a first material film on a first surface in a first film formation chamber; guiding the substrate having the first material film formed thereon to a second film formation chamber in a second direction from the second roll chamber toward the first roll chamber; forming, in the second film formation chamber, a second material film on a second surface opposite the first surface of the substrate when it is being guided in the second direction; taking up, in a third roll chamber provided between the first roll chamber and the second roll chamber, the substrate in a roll state. | 01-31-2013 |
20130288141 | FUEL CELL, METHOD FOR OPERATING FUEL CELL AND FUEL CELL SYSTEM - A fuel cell, a method for operating a fuel cell and a fuel cell system, which ensure no dew condensation for a wet reaction gas in the inlet area of gas channels in plates in a fuel cell stack, are provided. Gas channels | 10-31-2013 |
20150021164 | SPUTTERING DEVICE AND METHOD FOR PRODUCING LONG FILM WITH THIN LAYER - A sputtering device includes: a vacuum chamber; a vacuum pump for evacuating the vacuum chamber; a supply roll for supplying a long film; a storage roll for storing the long film; a film depositing roll that is provided in the vacuum chamber and conveys the long film along a surface thereof; a target facing the film depositing roll; a gas pipe for supplying a gas into the vacuum chamber; a plurality of guide rolls for guiding the long film; a plurality of guide roll shafts provided at each of both ends of the plurality of guide rolls; a plurality of bearings for supporting the guide roll shafts; and a plurality of insulators configured to insulate the guide roll shafts and the bearings from each other, wherein contact surfaces of the guide rolls with the long film are kept at a floating potential. | 01-22-2015 |
20150021172 | THIN FILM FORMING APPARATUS - A thin film forming apparatus includes: a gas supply device for supplying a gas for film deposition configured to include a plurality of gas supply sections arranged side by side in a width direction of a film substrate in a vacuum chamber, and a supply amount adjustment section for adjusting the supply amount of the gas for each of the gas supply sections; and a gas partial pressure measurement device for measuring partial pressure of each kind of gas in the vacuum chamber configured to include measurement sections disposed so as to correspond to a position where each of the gas supply sections is disposed in the width direction of the film substrate, and measure the partial pressure of the gas at a position where each of the measurement sections is disposed. | 01-22-2015 |
20150021173 | SPUTTERING DEVICE - At least two gas supply pipes are connected to one gas pipe in a sputtering device. The sputtering device includes: a plurality of gas supply pipes provided outside a plurality of walls for surrounding a target, a plurality of gas pipes, and a plurality of gas supply ports each provided on an inner surface of each of the plurality of walls. The plurality of gas supply ports are each disposed on a side farther away from a film depositing roll than a surface of the target. The sputtering device further includes a plurality of cooling pipes for cooling the walls. | 01-22-2015 |
20150021176 | SPUTTERING DEVICE - In a sputtering device of the present invention, a long film is guided by a plurality of concave guide rolls. Pressure imposed on the long film from the plurality of concave guide rolls is strong as near as an end and is weak as near as the center. Accordingly, the long film is substantially supported in an end portion of each of the concave guide rolls. Since wrinkles generated on the long film are not subjected to strong pressure from the concave guide rolls when passing through the concave guide rolls, these wrinkles do not turn to folds and pass through as they are. | 01-22-2015 |
20150021177 | SPUTTERING DEVICE - A sputtering device includes a vacuum chamber; a film depositing roll; at least one target material; a gas supply mechanism; three drive rolls (downstream conveying rolls); and three temperature control mechanisms for maintaining a temperatures of the drive rolls substantially constant in a range where the temperature is 80° C. or less and is higher than a minimum temperature in the vacuum chamber so that a long film substrate that is detached from the film depositing roll and is conveyed to the downstream conveying rolls is not deformed by rapid cooling. | 01-22-2015 |
Patent application number | Description | Published |
20090169265 | POWDER TRANSPORT SCREW, AND DEVELOPMENT DEVICE, PROCESS UNIT AND IMAGE-FORMING APPARATUS COMPRISING THIS POWDER TRANSPORT SCREW - A toner transport screw that is capable of maintaining a smooth and stable transport function. The toner transport screw, in which a helical blade is disposed on the circumference of a rotating shaft, has at least one spiral direction reversal part formed by connecting the respective ends of a first blade part and a second blade part, the directions of spiral of the first blade part and the second blade part being in opposite directions. A passage, which allows the toner to pass through the blades in the circumferential direction of the rotating shaft, is formed in the spiral direction reversal part. | 07-02-2009 |
20120114373 | IMAGE FORMING APPARATUS CAPABLE OF EFFECTIVELY UTILIZING INTERIOR SPACE - An image forming apparatus comprises a exposure device as a light source, a developer container storing developer and attached to a main body of the image forming apparatus perpendicular to a lengthwise direction of the photoconductor, a developing unit and a photoconductor unit having a photoconductor for bearing a latent image thereon each detachably attached to the main body substantially in the same direction as the developer container. An exposure device displacing mechanism displaces the exposure device between a first position enabling the exposure device to function as the light source and a second position disabling the exposure device to function as the light source. The photoconductor unit is detached when the developer container is either displaced from an initially attached position or is removed from the main body and the exposure device displacing device has displaced the exposure device to the second position. | 05-10-2012 |
20120189327 | DEVELOPER AMOUNT DETECTOR, AND DEVELOPER CONTAINER, DEVELOPMENT DEVICE, AND IMAGE FORMING APPARATUS INCORPORATING SAME - A development device includes a development housing, a first developer conveyance member, a developer bearer, and a developer amount detector to detect an amount of developer in the development housing. The developer amount detector includes a light-emitting element, a right-receiving element, a first light guide including a first end from which light enters and a second end disposed inside the development housing, and a second light guide including a first end positioned inside the development housing across a predetermined distance from the second end of the first light guide and a second end from which the light exits. The second end of the first light guide and the first end of the second light guide are arranged in an axial direction of the first developer conveyance member with a light transmission path therebetween partly inside a locus of rotation of the first developer conveyance member. | 07-26-2012 |
20130058679 | CHARGER AND IMAGE FORMING APPARATUS - A charger adapted to uniformly charge a surface of an image bearing member is provided. The charger includes a charging roller, a charging roller cleaning member, and a cleaning member moving device. The charging roller is in contact with a surface of the image bearing member and is rotatable. The charging roller cleaning member is in uniform contact with the charging roller in a longitudinal direction. The cleaning member moving device is adapted to reciprocate the charging roller cleaning member in a direction orthogonal to the longitudinal direction of the charging roller while keeping the charging roller cleaning member in contact with the charging roller. | 03-07-2013 |
20130183065 | DEVELOPER CONTAINER, DEVELOPING DEVICE, PROCESS CARTRIDGE, IMAGE FORMING DEVICE, AND DEVELOPER REFILLING METHOD - A first developer container delivers developer to a second developer container, the first developer container including a first opening to be engaged with the second developer container and to deliver the developer; and a conveyor to convey the developer and to deliver the developer through the first opening. | 07-18-2013 |
20130216264 | PROCESS UNIT AND IMAGE FORMING APPARATUS - A process unit includes a photosensitive member that carries an image; a developing device that has a developer carrying member carrying a developer to be supplied to the photosensitive member; a rotating shaft that supports the developing device rotatably for approaching and separating from the photosensitive member; a photosensitive member gear provided to the photosensitive member; and a developing gear provided to the developer carrying member. The photosensitive member gear and the developing gear engage together and driving force can be transmitted, and the rotating shaft is placed on a driving force vector between the gears or on an extended line thereof, the driving force vector being generated from engagement between the photosensitive member gear and the developing gear. | 08-22-2013 |
20130259532 | DEVELOPER CONTAINER, DEVELOPING DEVICE, PROCESS UNIT, AND IMAGE FORMING APPARATUS - The developer container includes a rotator that is rotated in the container body, a sequence of gears disposed outside the developer container that transmits a torque to the rotator, and a container guiding portion that fits with a main body side guiding portion and guides the developer container in a direction in which the developer container is attached to a mounting portion of an image forming device main body. A first gear included in the sequence of the gears is movable between an operating position where the first gear engages with a second gear and a retracted position where the first gear is retracted. On a surface on which the container guiding portion is disposed, a part of the container guiding portion is disposed within a projected area of the first gear being disposed at the operating position. | 10-03-2013 |
20130266347 | DEVELOPER CONTAINER, DEVELOPING DEVICE, PROCESS UNIT, AND IMAGE FORMING APPARATUS - The developer container includes a rotator that is rotated in the container body, a sequence of gears disposed outside the developer container that transmits a torque to the rotator, and a container guiding portion that fits with a main body side guiding portion and guides the developer container in a direction in which the developer container is attached to a mounting portion of an image forming device main body. A first gear included in the sequence of the gears is movable between an operating position where the first gear engages with a second gear and a retracted position where the first gear is retracted. On a surface on which the container guiding portion is disposed, a part of the container guiding portion is disposed within a projected area of the first gear being disposed at the operating position. | 10-10-2013 |
20130344427 | TONER, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - To provide a toner, which contains a binder resin, a colorant, and a silicone oil-treated external additive, wherein the silicone oil-treated external additive contains free silicone oil, and a total amount of the free silicone oil is 0.2% by mass to 0.5% by mass relative to the toner, and wherein the toner has the average circularity of 0.96 to 1. | 12-26-2013 |
20140029962 | IMAGE FORMING APPARATUS AND POWDER TRANSPORT UNIT - An image forming apparatus includes a powder container containing powder used for image forming and including an inlet through which the powder is supplied, a powder supply unit including an outlet that is removably connected to the inlet and supplying the powder to the powder container with the outlet connected to the inlet of the powder container, a powder amount detector detecting whether a present powder level in the powder container is equal to or greater than a threshold, and a controller controlling an amount of powder supply from the powder supply unit and controlling the present powder level in the powder container after replenishment to remain in a range from the threshold and a position corresponding to an upper edge of the inlet. A powder transport unit includes a transport decelerating part to decelerate the speed of powder transport and a detection area in the image forming apparatus. | 01-30-2014 |
20140050502 | IMAGE FORMING APPARATUS AND DEVELOPER CONTAINER, DEVELOPING DEVICE, PROCESS UNIT, AND REPLACEABLE UNIT THEREFOR - An image forming apparatus includes an apparatus body, an apparatus-side terminal provided to a first inner side wall of the apparatus body, a developer container to contain developer and to be removably installable in the apparatus body, a container-side terminal electrically connectable to the apparatus-side terminal and disposed in a first end portion of the developer container in a longitudinal direction thereof, and an apparatus-side protrusion projecting inward from the first inner side wall of the apparatus body. In removal of the developer container from the apparatus body, a second end portion of the developer container in the longitudinal direction is disengaged from the apparatus body before the first end portion is disengaged from the apparatus body, and the apparatus-side protrusion contacts the first end portion of the developer container immediately after removal of the developer container from the apparatus body is started. | 02-20-2014 |
20140050507 | SHUTTER ASSEMBLY, POWDER CONTAINER, CLEANING DEVICE, AND IMAGE FORMING APPARATUS - A shutter assembly includes an internal shutter and an external shutter. The internal shutter including a contact member is movable between a first position at which the internal shutter closes the outlet, a third position at which the internal shutter opens the outlet, and a second position between the first position and the third position. The internal shutter at the second position is movable to the third position while closing the outlet. The external shutter is movable between a closed position at which the external shutter closes the outlet and an open position at which the external shutter opens the outlet, and includes an interlocking member to contact the contact member to move the internal shutter. As the external shutter is moved from the closed position to the open position, the internal shutter is moved from the first position to the second position in conjunction with the external shutter. | 02-20-2014 |
20140153972 | POWDER CONTAINER, DEVELOPING UNIT, PROCESS UNIT, AND IMAGE FORMING APPARATUS INCORPORATING SAME - A powder container that includes a container body to contain powder for image formation, a discharge outlet formed in the container body to discharge powder therefrom, a shutter movable between an open position to open the discharge outlet and a closed position to close the discharge outlet, and a seal member to be interposed between the container body and the shutter when the shutter is at the open position. In a state in which the shutter is at the open position, a downstream end of the seal member in an opening direction in which the shutter moves to open the discharge outlet is positioned downstream from a downstream end of the shutter in the opening direction. | 06-05-2014 |
20140294449 | DEVELOPER CONTAINER, DEVELOPING DEVICE, PROCESS UNIT, AND IMAGE FORMING APPARATUS - The developer container includes a rotator that is rotated in the container body, a sequence of gears disposed outside the developer container that transmits a torque to the rotator, and a container guiding portion that fits with a main body side guiding portion and guides the developer container in a direction in which the developer container is attached to a mounting portion of an image forming device main body. A first gear included in the sequence of the gears is movable between an operating position where the first gear engages with a second gear and a retracted position where the first gear is retracted. On a surface on which the container guiding portion is disposed, a part of the container guiding portion is disposed within a projected area of the first gear being disposed at the operating position. | 10-02-2014 |
20140356004 | DEVELOPER CONTAINER, DEVELOPING DEVICE, PROCESSING UNIT, IMAGE FORMING DEVICE, AND METHOD OF MANUFACTURING DEVELOPER CONTAINER - A developer container includes: a container body that stores a developer and includes a filling port for the developer; and a container terminal that is attachable to and detachable from the container body. The container body is provided with an identifier that engages with the container terminal and is caused to change own form that can be identified from an outside, by an external force that is applied to detach the container terminal from the container body. The container body is provided with a flow preparation part that separates an inside and outside of the container body before changing the form of the identifier and that allows the air to flow between the inside and outside of the container body after changing the form of the identifier. | 12-04-2014 |
20160004208 | DEVELOPER CONTAINER, DEVELOPING DEVICE, PROCESS UNIT, AND IMAGE FORMING APPARATUS - The developer container includes a rotator that is rotated in the container body, a sequence of gears disposed outside the developer container that transmits a torque to the rotator, and a container guiding portion that fits with a main body side guiding portion and guides the developer container in a direction in which the developer container is attached to a mounting portion of an image forming device main body. A first gear included in the sequence of the gears is movable between an operating position where the first gear engages with a second gear and a retracted position where the first gear is retracted. On a surface on which the container guiding portion is disposed, a part of the container guiding portion is disposed within a projected area of the first gear being disposed at the operating position. | 01-07-2016 |
Patent application number | Description | Published |
20100188694 | Image reading apparatus, server connected to the image reading apparatus and system including these - An image reading apparatus includes: a document reading unit; a storage storing a user ID and viewing limiting information indicating whether or not viewing of image data is permitted or not, in association with each other for each user; a control unit activating the document reading unit when authentication based on the user ID is successful; and a limiting information adding unit for adding, to the image data, authentication requesting data indicating that authentication is necessary for viewing the image data, in accordance with the viewing limiting information associated with the authenticated user ID. | 07-29-2010 |
20100202691 | IMAGE PROCESSING APPARATUS AND SCANNER APPARATUS - In a multi-functional peripheral as an embodiment of the present invention, reading operation of an original is performed and form recognition processing is performed. Here, original image data is compared with form data held in advance and it is determined whether there is some that correspond to each other. In a case of not success in the form recognition, normal processing, that is, OCR processing is performed for entire region of original image data, and OCR result is embedded in the original image data as transparent character data. In a case of success in the form recognition, and further when there is a field in which protected attribute is set in the form data, embedding transparent character data for the protected attribute field is prohibited, and for only other region, embedding transparent character data is performed. | 08-12-2010 |
20100253974 | PRINTING APPARATUS, PRINTING SYSTEM, AND METHOD OF DELETING PRINTING DATA - In a printing apparatus on a DHCP network, printing data accumulated in the printing apparatus is deleted without troubling a user and shortage of storage capacity is prevented. The printing apparatus is connected through a network to a DHCP server apparatus that stores IP address assignment information including an IP address of each DHCP client. The printing apparatus includes a printing data storage portion that accumulates printing data transmitted from each DHCP client along with the IP address of each DHCP client, and a CPU that determines whether or not each DHCP client is invalid based on IP address lease information stored in the DHCP server and deletes the printing data of the DHCP client which is determined to be invalid from the printing data storage portion. | 10-07-2010 |
20100306070 | PRINT SYSTEM FOR OUTPUTTING TRANSACTION STATEMENT - A print system allowing a user to obtain a transaction statement in a safe and easy manner is provided. For this purpose, a print system includes: a banking terminal; and a digital multi-function peripheral performing data communication with a Web server having transaction statement data and PIN code stored in association with each other, through an external network and an in-store network. The banking terminal is adapted to include an operation panel receiving a request from a user for an output of a transaction statement, and a PIN code generating unit and a receipt issuing unit for generating and outputting a PIN code in response to the received request. The digital multi-function peripheral is adapted to include an operation panel receiving the PIN code input by a user operation, a control unit obtaining transaction statement data corresponding to the received PIN code from the Web server, and a printer unit outputting a transaction statement based on the obtained transaction statement data. | 12-02-2010 |
20120223897 | OPERATION INSTRUCTING DEVICE, IMAGE FORMING APPARATUS INCLUDING THE SAME AND OPERATION INSTRUCTING METHOD - An operation instructing device includes a display unit that displays an image and a detecting unit that detects a touched position and thereby specifies a corresponding position of an image displayed on the display unit. While an image is displayed on the display unit, if the detecting unit detects that at least two points A and B are touched in a portion of the detecting unit corresponding to the image, assuming that the image is formed on a sheet of recording paper, a distance between two points of the image formed on the sheet of recording paper corresponding to the two touched points is calculated and displayed on a display panel. Thus, an error in operation instruction such as enlargement and reduction can be reduced, and hence, wasteful consumption of ink and recording paper can be reduced. | 09-06-2012 |
20120307283 | IMAGE FORMING SYSTEM AND CONTROL METHOD THEREOF - When a user uses one of a plurality of image forming apparatuses from one of a plurality of terminals, an authentication server determines, on a user by user basis, whether he/she is permitted to use each image forming apparatus, and detects if any of the image forming apparatuses is in a troubled state and incapable of executing a prescribed function. If one image forming apparatus is in a troubled state and the user requests another, trouble-free image forming apparatus to execute a job utilizing a function of the trouble-free image forming apparatus, the authentication server permits execution of the job if the user is permitted to use the image forming apparatus in the troubled state. Thus, the user can get a print even if a usually used image forming apparatus is unavailable. | 12-06-2012 |
20130013946 | IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF - An image forming apparatus executes the steps of: calculating an end time of the job of which execution is instructed, and determining if the end time of the job is before the start time of power outage; specifying, if it is determined that the end time of the job is not before the start time of power outage, a part of processing of the job that can be completed before the start time of power outage; starting the job, if it is determined that the end time of the job is before the start time of power outage; and starting the part of processing of the job if it is determined that the end time of the job is not before the start time of power outage. Thus, abnormal termination of an active job due to power outage can be prevented. | 01-10-2013 |
20140104647 | APPARATUS CAPABLE OF PERFORMING SETTING FOR A PLURALITY OF SETTING ITEMS - When an automatic clearing function for resetting is executed in the case of no operation for a certain period of time, without occurrence of automatic clearing complicatedly and by executing automatic clearing appropriately, it is enabled to satisfy both improvement of usability by a user and convenience by automatic clearing. A control portion, when setting for a plurality of setting items is performed in accordance with operation input to the operation portion, measures time during which operation input to performing setting is not performed for each of the plurality of setting items, and executes automatic clearing to reset setting based on the measured time. When performing resetting for a setting item for which automatic clearing is executed during setting by a user, the time until executing automatic clearing is then extended. | 04-17-2014 |
Patent application number | Description | Published |
20090304414 | IMAGE FORMING APPARATUS - There is provided an image forming apparatus capable of realizing improvement of an image density by improving dot reproducibility and reducing fog at the same time. An alternating voltage is applied to a development sleeve so that a first period during which a first peak-to-peak voltage Vpp( | 12-10-2009 |
20090317143 | IMAGE FORMING APPARATUS - There is provided an image forming apparatus capable of realizing Improvement of an image density by improving dot reproducibility and reducing fog as well. An alternating voltage is applied to a development sleeve so that a first period during which a first peak-to-peak voltage Vpp( | 12-24-2009 |
20100303518 | TRANSFER DEVICE AND IMAGE FORMING APPARATUS - A transfer device and an image forming apparatus capable of forming an image of smooth image quality with little uneven density, are provided. An alternating voltage is applied so that a first period in which a first peak-to-peak voltage Vpp( | 12-02-2010 |
20120045255 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - Provided is a developing device employing single-component development in which in an upstream side of a most proximate area of a developing roller and a blade for regulating a toner layer, toner aggregation is made difficult to occur between the developing roller and the blade, and uniformity of the toner layer on the developing roller is increased, so as to be able to perform development which does not apply heavy stress and is excellent in uniformity. In the developing device, the blade is divided into two areas of a downstream area in a rotational direction of the developing roller including the most proximate part to the developing roller and an upstream area in a rotational direction of the developing roller not including the most proximate part, and adhesion between a toner and the blade in the upstream area is made smaller than that in the downstream area. | 02-23-2012 |
20120070170 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device which includes a developing roller which supplies a toner to a photoreceptor and a supply roller which performs supply of a toner to the developing roller and peeling of a toner from the developing roller, and applies a bias voltage to the developing roller so as to develop an electrostatic latent image formed on the photoreceptor with a toner. The developing device includes a first current measuring portion which measures a value of a current flowing in the developing roller, a second current measuring portion which measures a value of a current flowing in the supply roller, and a control portion which calculates a toner charging amount on the developing roller and a toner peeled amount by the supply roller based on measured results by the first current measuring portion and the second current measuring portion. | 03-22-2012 |