Patent application number | Description | Published |
20100250048 | ENGINE FUEL DIAGNOSIS DEVICE AND CONTROL APPARATUS FOR AUTOMATIC TRANSMISSION HAVING THE DEVICE - An engine fuel diagnosis device is disclosed that diagnoses whether an unexpected fuel is being used in an internal combustion engine. The fuel diagnosis device includes an inclination detecting section, a first estimating section, an acceleration detecting section, and a diagnosing section. The first estimating section computes a first estimated acceleration, which is a vehicle acceleration obtained when fuel injection is executed in the internal combustion engine while the vehicle is traveling uphill or downhill, based on an engine power, which is estimated based on the engine operation state on the assumption that a previously expected fuel is being used, and the inclination detected by the inclination detecting section. The diagnosing section computes a first deviation degree indicating the degree of deviation between the first estimated acceleration and the actual acceleration detected when the first estimated acceleration is computed. The diagnosing section diagnoses the usage state of the unexpected fuel based on the first deviation degree. | 09-30-2010 |
20100332091 | HYDRAULIC CONTROL DEVICE AND HYDRAULIC CONTROL METHOD FOR VEHICLE AUTOMATIC TRANSMISSION - During a non-shift operation when a predetermined gear of an automatic transmission is kept, a hydraulic control unit increases an engagement hydraulic pressure to a friction engagement device associated with the gear formation by a predetermined hydraulic pressure with respect to a line hydraulic pressure. Therefore, in comparison with a case where a hydraulic pressure equivalent to the line hydraulic pressure is set as an engagement hydraulic pressure to the friction engagement device for obtaining a hydraulic pressure equivalent to the line hydraulic pressure, shift response (hydraulic pressure response) variations when shifting from a non-shift state (steady state) into a shift state are suppressed by the margin of the predetermined hydraulic pressure. In addition, in comparison with a case where the engagement hydraulic pressure to the friction engagement device is set to a maximum hydraulic pressure to reduce the response variations, power consumption of each linear solenoid valve is suppressed. | 12-30-2010 |
20120312222 | GEAR SHIFT INDICATOR - Disclosed is a gear shift indicator which can reduce bothersome feelings of the driver. The EFI-ECU acquires information about the travelling state of a vehicle, and calculates a target gear shift stage for improving fuel consumption. The EFI-ECU acquires information about a current gear shift stage. The EFI-ECU determines that a gear shift request is generated when the current gear shift stage is different from the target gear shift stage. When the EFI-ECU determines that an AI control is under execution and that the target gear shift stage calculated in the Step is a restricted gear shift stage prohibited in the AI control, the EFI-ECU does not present a gear shift indication. | 12-13-2012 |
20150353086 | CONTROL DEVICE FOR VEHICLE AND CONTROL METHOD FOR VEHICLE - A control device for a vehicle includes a control unit. The control unit has a first traveling mode in which a power connection and disconnection device is engaged during traveling, a second traveling mode in which the power connection and disconnection device is released during traveling, and a third traveling mode. The control unit executes the second traveling mode when i) the vehicle speed is equal to or higher than the lower limit vehicle speed and equal to or lower than an upper limit vehicle speed, ii) an accelerator depressing amount is greater than a first depressing amount and smaller than a second depressing amount, and iii) an accelerator depressing amount variation is zero, or the control unit determines that a traveling condition is deceleration traveling based on the accelerator depressing amount variation. | 12-10-2015 |
20150353091 | CONTROL DEVICE FOR VEHICLE AND METHOD OF CONTROLLING VEHICLE - A control device for a vehicle includes a control unit configured to: implement a first travelling mode of engaging a power connecting/disconnecting device at a time an accelerator opening is greater than a fully closed state and not greater than a first opening; implement a second travelling mode of releasing the power connecting/disconnecting device at a time the accelerator opening is greater than the first opening and smaller than a second opening; implement a third travelling mode of stopping a fuel supply to an engine with the power connecting/disconnecting device engaged at a time the accelerator opening is fully closed; and control an output of the engine so that a vehicle deceleration at a time of implementing the first travelling mode gradually changes. | 12-10-2015 |
Patent application number | Description | Published |
20090105424 | DIP Forming Latex Composition and DIP Formed Article - A dip-forming latex composition comprising a conjugated diene rubber latex and an organic peroxide, wherein the residual effective activity of organic peroxide defined as the ratio of organic peroxide retaining reactivity to the whole organic peroxide contained in the latex composition is 35% or higher. The invention provides a dip-formed article, which exhibits good softness of touch and comfortable fittingness and excellent in tensile strength and resistance to flexing fatigue; which itself hardly suffers coloration especially when the article thereof is worn as a glove for continuous operation for a long time and is hard to reduce adhesiveness and following characteristics to hand while wearing it; and a dip-forming latex composition capable to give such an article by dip-forming thereof. | 04-23-2009 |
20090116861 | DEVELOPER CARRYING DEVICE, DEVELOPING DEVICE, PROCESS UNIT, AND IMAGE FORMING APPARATUS - A pressing wall is provided in a part of the entire area of the first carrying chamber in which a first screw member is housed. The area is opposed to a bottom wall of the first carrying chamber on the lower side in the gravity direction of the first screw member and opposed to the side walls of the first carrying chamber on both lateral sides orthogonal to a rotation axis direction of the first screw member. In the area, a toner concentration of a K developer being carried is detected by a K toner concentration sensor. The pressing wall comes into contact with, from above in the gravity direction, the K developer, which moves from a lower side to an upper side in the gravity direction according to the rotation of the first screw member, and presses the K developer downward in the gravity direction. | 05-07-2009 |
20090257761 | DEVELOPER CONVEYING DEVICE, DEVELOPING DEVICE, PROCESS UNIT, AND IMAGE FORMING APPARATUS - A black developer is conveyed in a first conveyance chamber in a rotation axis direction while agitating with rotation of a first screw member. A black-toner-concentration detecting sensor detects a toner concentration of the black developer by having contact with the black developer conveyed inside the first conveyance chamber. An average of peak amounts of a pressing force on the black developer, which is conveyed inside the first conveyance chamber by the first screw member, with respect to the black toner-concentration detecting sensor is set within a range of 9.8 15 [N/m | 10-15-2009 |
20100086320 | IMAGE FORMING APPARATUS - A first developer container having a toner supplying opening is provided in a developing unit. A toner concentration sensor is arranged downstream of the toner supplying opening to detect toner concentration in developer. A supply controlling unit is provided to determine an excess or a shortage in the amount of supplied toner based on image information correspondingly to a detection result by the toner concentration sensor, and to correct the driving amount of a toner supplying unit that has been determined based on the image information correspondingly to the recognized excess or shortage in the amount of supplied toner. | 04-08-2010 |
20100086322 | IMAGE FORMING APPARATUS - A supply control unit is configured to, in a successive image-forming operation, perform a process of successively generating a driving control pattern for a toner supply device based on image information of each page, and synthesizing an unused portion of the driving control pattern which is obtained by eliminating a portion of the driving control pattern already reflected on a driving control of the toner supply device from the driving control pattern generated based on image information of a previous page with a driving control pattern generated based on a subsequent page. | 04-08-2010 |
20100278549 | IMAGE FOMRING APARATUS AND METHOD OF ADJUSTING CHARGE BIAS - An image forming apparatus includes an image carrier configured to carry an image and a charger to which a direct current voltage overlapped with an AC voltage is applied as a charging bias to charge the image carrier. The charger is positioned in contact or contactlessly with the image carrier. The AC voltage applied to the charger in an adjustment of the AC voltage is not less than twice a charging start voltage Vth at which the image carrier starts to be charged. | 11-04-2010 |
20120201552 | IMAGE FORMING APPARATUS CAPABLE OF REDUCING IMAGE DENSITY IRREGULARITY - In an image forming apparatus, a first controller forms a first image pattern on an image bearer and determines a first image formation condition based on a detection result of density of a toner image. The first controller then controls a toner image forming device based on the first image formation condition. A second controller forms a second image pattern different from the first image pattern on an image bearer and determines a second image formation condition based on a detection result of density of a toner image. The second controller then controls a toner image forming device based on the second image formation condition. | 08-09-2012 |
20130108292 | IMAGE FORMING APPARATUS CAPABLE OF OPTIMALLY PERFORMING DENSITY FLUCTUATION CORRECTION | 05-02-2013 |
20130243456 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes a rotatable image carrier that carries a toner image having a length corresponding to at least a circumferential length of the carrier; an image density detector that detects a density of the image; a potential detector that detects, over at least the circumferential length, a surface potential of the carrier before toner adheres thereto; a first image forming device that adjusts the density with a first factor, and forms an image based on a first condition of the first factor; a second image forming device that adjusts the density with a second factor, and forms an image based on a second condition of the second factor; a first determining device that determines the first condition based on uneven density; and a second determining device that determines the second condition based on uneven density and a potential distribution of the surface potential. | 09-19-2013 |
20130243457 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes an image carrier; a developer carrier configured to adhere toner onto the image carrier; an image density detector to detect a density of an image on the image carrier formed by the developer carrier adhering the toner on the image carrier; a rotary member to form an image pattern of which density is detected by the image density detector; and a rotational position detector to detect a rotational position of the rotary member. In the image forming apparatus, the image pattern is generated based on the rotational position detected by the rotational position detector and the rotary member that the rotational position detector detects the rotational position thereof is either the image carrier or the developer carrier. | 09-19-2013 |
20140064759 | IMAGE FORMING APPARATUS - An image forming apparatus includes a controller and an imaging unit having a developing device to develop a latent image on a surface of a latent image carrier with toner. When control target value of control parameters that influence a developing ability of the imaging unit becomes inappropriate, the controller performs target value correction processing of correcting the control target value to bring the control target value close to an appropriate value for stabilizing a development density of the imaging unit. In the target value correction processing, the controller corrects a control target value of a second control parameter having a response speed, obtained when the developing ability is changed by the correction, faster than a first control parameter, correct the control target value of the first control parameter, and then turn the control target value of the second control parameter back to the original value. | 03-06-2014 |
20140233996 | COOLING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME - A cooling device includes a cooling member to cool a recording material. The cooling member includes a cooling surface member, a heat exchanging member, and a fastening member. The cooling surface member has a cooling surface to directly or indirectly contact the recording material and absorb heat of the recording material to cool the recording material. The heat exchanging member is directly or indirectly joined to the cooling surface member to radiate heat absorbed by the cooling surface member directly or indirectly via a radiation member. The fastening member fastens the cooling surface member and the heat exchanging member to retain a joined state in which the cooling surface member and the heat exchanging member are directly or indirectly joined to each other. The cooling surface member and the heat exchanging member are separable from the joined state to a separated state without damaging the fastening member. | 08-21-2014 |
20140241741 | CORRECTION CONTROL METHOD AND IMAGE FORMING APPARATUS - A correction control method includes performing correction control to bring a control value to a target value or a change through a prediction control system that previously applies a predetermined amount of correction and a predetermined timing. The prediction control system is constructed without performing data offset processing for deriving the predetermined amount of correction and the predetermined timing. | 08-28-2014 |
20140301748 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image carrier; an image forming unit; a processor for controlling the image forming unit according to a predetermined image forming condition setting data; an image density sensor to detect an image density of the toner pattern formed on the image carrier; a reference rotary position detector; an image density fluctuation data acquisition unit to obtain an image density fluctuation data of more than one circumferential length of the photoreceptor drum with reference to the reference rotary position detected by the reference rotary position detector based on a result related to the toner pattern formed on the image carrier detected by the image density sensor; and a correction data generator to generate a correction data to correct a reference image forming condition setting data with a correction amount corresponding to each rotary position of the rotary member to thus reduce the image density fluctuation. | 10-09-2014 |
20150078770 | IMAGE FORMING APPARATUS - An image forming apparatus includes paper trays to contain and feed a recording sheet on which a toner image is transferred; status sensors to detect a storage status of the recording sheet contained in the paper trays; a sheet sensor to detect a smoothness of the recording sheet; a memory to store detection values of the smoothness detected by the sheet sensor; a fixing device to heat and press the toner image transferred onto the recording sheet and fix it onto the recording sheet; and a control circuit to determine a target fixing temperature of the fixing device based on the detection values stored in the memory. The control circuit determines the target fixing temperature for successive recording sheets depending on the detected smoothness, and resets the detection values stored in the memory to zero when the status sensors detect a change in the storage status of the paper trays. | 03-19-2015 |
20150110514 | IMAGE FORMING APPARATUS - An image forming apparatus includes a photoconductor, an optical scanner, a development device, a movable density sensor, a density sensor driver, and a processor. The optical scanner includes a light source to emit light, and irradiates a surface of the photoconductor in a main scanning direction with the light to form a latent image on the surface of the photoconductor. The development device develops the latent image into a toner image. The density sensor detects unevenness in density of the toner image in the main scanning direction. The density sensor driver moves the density sensor in the main scanning direction. The processor corrects a driving signal for the light source according to image data to reduce the unevenness in density in the main scanning direction, according to positional data of the density sensor in the main scanning direction and an output value of the density sensor. | 04-23-2015 |
20150116718 | OPTICAL SENSOR AND IMAGE FORMING APPARATUS INCORPORATING SAME - An optical sensor includes a light-emitting unit to emit light onto a measuring object, a regular reflection light receiver to receive regular reflection light from the measuring object out of the light emitted by the light-emitting unit, and a diffuse reflection light receiver to receive diffuse reflection light from the measuring object out of the light emitted by the light-emitting unit. An angle of incidence of the light emitted onto a surface of the measuring object is not smaller than 75° and not larger than 85°. The diffuse reflection light receiver receives, out of the diffuse reflection light from the measuring object, diffuse reflection light having an angle of reflection with respect to a perpendicular to the surface of the measuring object larger than 0° and smaller than an angle of reflection of the regular reflection light with respect to the perpendicular to the surface of the measuring object. | 04-30-2015 |
20150261161 | RECORDING MEDIA SMOOTHNESS DETECTOR AND IMAGE FORMING APPARATUS INCORPORATING SAME - A recording media smoothness detector includes a sensor and a calculator. The sensor includes a light source to emit light toward a recording medium and a light-detecting device to detect an amount of light reflected by the recording medium. The calculator includes a first memory to store an initial output value of the sensor and a second memory to store a decreased output percentage of the sensor relative to the initial output value per number of recording media detected. The calculator is configured to calculate a decreased output amount of the sensor from the decreased output percentage of the sensor per number of recording media detected, according to number of recording media detected by the sensor, to adjust a luminosity of the sensor based on the calculated decreased output amount of the sensor and determine smoothness of the recording medium based on an output of the sensor after the adjustment. | 09-17-2015 |
20150261162 | IMAGE FORMING APPARATUS - An image forming apparatus includes a latent image bearer, a toner image forming unit, and a transfer device. The toner image forming unit includes a charger, a latent image forming device, and a developing device, and is configured to form a test latent image pattern on a surface of the latent image bearer, and to develop the test latent image pattern into a test toner pattern. The test latent image pattern includes a plurality of test latent image parts partly offset from one another in a main scanning direction. The image forming apparatus also includes a developing current detector and a processor to detect uneven image density in the main scanning direction using the test latent image pattern, based on the developing current detected by the developing current detector, to adjust the uneven image density in the main scanning direction. | 09-17-2015 |
20150362879 | IMAGE FORMING APPARATUS AND METHOD ADJUSTING IMAGE FORMING CONDITION - An image forming apparatus includes an image bearer; a toner image forming device; a transfer rotator; a transfer device; a rotation position detector; an image density detector; a density data acquisition unit to causes the toner image forming device to form an adjustment toner image equal to or greater in length than a circumferential length of the image bearer, cause a linear velocity difference between the image bearer and the transfer rotator in transfer of the adjustment toner image, and acquires, from a detected image density of the toner image transferred from the image bearer, detected by the image density detector, image density unevenness data with reference to detection of a reference rotation position of one of the image bearer and a rotator; and a correction unit to adjust an image forming condition according to the reference rotation position, the image density unevenness data, and the linear velocity difference. | 12-17-2015 |
20160062260 | IMAGE FORMING APPARATUS - An image forming apparatus includes a latent image carrier; a charger; a charging power supply; a latent image writer to write; a developing device; a rotary attitude sensor; a controller to perform a data formulating process to formulate a change pattern data and a bias changing process to cause the charging power supply to change the charging bias output based on readings from the rotary attitude sensor and the change pattern data, during a print job; and a surface potential sensor to detect a surface potential of the latent image carrier. In the data formulating process, the controller formulates the change pattern data based on the surface potential of the latent image carrier detected by the surface potential sensor, while the charging power supply outputting a constant charging bias, and based on readings from the rotary attitude sensor while the surface potential is being detected. | 03-03-2016 |