Abstract: An image forming apparatus includes a latent image bearer; a developing device containing two-component developer and including a developer bearer, a development voltage source, and a toner concentration detector; a toner supply device to supply toner to the developing device; a transfer device; and a controller to keep a toner concentration in the developer in the developing device at a target toner concentration during image formation. The controller executes forced toner consumption in which the developing device supplies the toner to the latent image bearer the toner at a predetermined forced toner consumption timing, while inhibiting the toner supply device from supplying toner. When the toner concentration falls to a prescribed toner density lower than the target toner concentration, the controller completes the forced toner consumption and executes a post-consumption toner supply operation.

Abstract: An image forming apparatus includes a latent image bearer, a developing device, a toner container, a toner feed connector, a processor, and a notifier. The developing device develops, with toner, a latent image on the latent image bearer. The toner container contains the toner. The toner container is detachably attachable to the image forming apparatus. The toner feed connector guides the toner of the toner container to the developing device. The information detector detects identification information including toner type information and maintenance contract information stored in the toner container. The processor determines whether the toner type information of the toner container coincides before and after replacement and whether the maintenance contract information of the toner container is matched with maintenance contract information of the image forming apparatus. The notifier indicates a determination made by the processor.

Abstract: An image forming apparatus includes a photoconductor to form an electrostatic latent image, a special color developing device to develop the latent image with a special color toner other than standard color toners to form a special color toner image, an adhesion amount adjuster to adjust a special color toner adhesion amount by changing an application bias between the photoconductor and a developing sleeve of the special color developing device, a setting unit to set brightness of the special color toner, and a developing-performance adjuster to adjust a developing performance of the special color developing device according to a setting value of the brightness set by the setting unit. The developing-performance adjuster adjusts the developing performance of the special color developing device to a developing performance different from a developing performance set to each of standard color developing devices in adjustment of densities of the standard color toners.

Abstract: An image forming apparatus includes a plurality of image bearing members, replaceable development units, replaceable toner replenishing members, toner supply units, and a control unit. The development units are each provided for a corresponding one of the plurality of image bearing members. The toner replenishing members are each provided for a corresponding one of the development units. The toner supply units are arranged between the respective toner replenishing members and the development units. The control unit causes the image forming apparatus to execute a toner supply unit cleaning mode to convey a last-used toner inside the toner supply unit into the development unit which is last used and to be replaced to empty the toner supply unit, when replacement of the development unit and the corresponding toner replenishing member is designated to use a toner of a type different from the last-used toner.

Abstract: A speech processing apparatus, method and non-transitory computer-readable storage medium are disclosed. A speech processing apparatus may include a memory storing instructions, and at least one processor configured to process the instructions to calculate an acoustic diversity degree value representing a degree of variation in types of sounds included in a speech signal representing a speech, on a basis of the speech signal, and compensate for a recognition feature value calculated to recognize specific attribute information from the speech signal, using the acoustic diversity degree value.

Abstract: A composition for forming a lithium reduction resistant layer includes a solvent, and a lithium compound, a lanthanum compound, a zirconium compound, and a compound containing a metal M, each of which shows solubility in the solvent, and in which with respect to the stoichiometric composition of a compound represented by the general formula (I), the lithium compound is contained in an amount 1.05 times or more and 2.50 times or less, the lanthanum compound and the zirconium compound are contained in an amount 0.70 times or more and 1.00 times or less, and the compound containing a metal M is contained in an equal amount.

Abstract: An image forming apparatus includes a latent image bearer, a developing device, a supplier, and a controller. The controller controls the supplier according to a detection result of a toner density by the toner density sensor and a toner density target value to adjust the toner density of developer in the developing device. The controller is configured to correct the toner density target value and an imaging condition affecting a toner adhesion amount of an output image separately from the toner density, according to a component adhesion deterioration degree being a deterioration degree of carrier due to adhesion of a toner component, obtained based on at least an average image area ratio of the output image, and a coating abrasion deterioration degree being a progression degree of deterioration due to coating abrasion of the carrier, obtained based on at least the average image area ratio of the output image.

Abstract: An image forming apparatus includes a first image bearer, a lubricant dispenser to apply lubricant to the first image bearer, and a controller to adjust a spatial interval during image formation between successive recording media on each of which an image is formed, according to a total amount of toner attached to the first image bearer for each of the successive recording media, to apply the lubricant to the first image bearer.

Abstract: An image forming apparatus includes a plurality of image forming stations, each including a developing device, a toner container containing a colored or special toner, and a replaceable supply-toner conduit extending from the toner container to the developing device; and a toner type identifier to identify a type of toner used in the supply-toner conduit of each of the plurality of image forming stations.

Abstract: An image forming apparatus includes a photoconductor to form an electrostatic latent image, a special color developing device to develop the latent image with a special color toner other than standard color toners to form a special color toner image, an adhesion amount adjuster to adjust a special color toner adhesion amount by changing an application bias between the photoconductor and a developing sleeve of the special color developing device, a setting unit to set brightness of the special color toner, and a developing-performance adjuster to adjust a developing performance of the special color developing device according to a setting value of the brightness set by the setting unit. The developing-performance adjuster adjusts the developing performance of the special color developing device to a developing performance different from a developing performance set to each of standard color developing devices in adjustment of densities of the standard color toners.

Abstract: A processor, a memory medium for storing an operating system (OS) to be executed by the processor, one or more devices which are re-initialized upon OS restart, an active OS, and a standby OS are provided. The active OS is executed at system startup to initialize the devices, and executes an OS process in a normal state after the system startup. The standby OS is executed at system startup to detect the devices connected to the processor, and initialize the detected devices, and goes to standby. When an abnormality occurs in the active OS and a restart is needed, the standby OS re-initializes the devices by using re-initialization data for the devices which had been stored during the initialization process before going to standby.

Abstract: A compound that has the structure according to Formula M(LA)x(LB)y(LC)z: wherein ligand LA is ligand LB is ?and ligand LC is and devices and formulations containing these compounds are disclosed. In Formula M(LA)x(LB)y(LC)z: M is a metal having an atomic number greater than 40; x is 1 or 2; x+y+z is the oxidation state of the metal M; X1-X4 and A1-A8 are C or N; at least one of A1-A8 is N; X is O, S, or Se; two adjacent RB form a six-member aromatic ring E fused to ring B; wherein ring E can be substituted by RE; each RA-RE and R1-R4 is independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof.

Abstract: An OLED includes a suppression mechanism and multiple dopants in its organic emissive layer. The organic emissive layer includes a host, a first compound capable of phosphorescent emission at room temperature, and a second compound capable of phosphorescent emission at room temperature. The suppression mechanism is capable of preferentially reducing the emission of light emitted by the second compound. The organic emissive layer may also contain a third compound capable of phosphorescent emission at room temperature.

Abstract: A normally closed three-port valve includes a valve member urged from a supply port side toward a main valve seat of a valve body in a valve closing direction and opened by a valve opening rod having a discharge channel. A back pressure chamber at a back of the valve member communicates with a channel on an output port side through a vent hole balancing fluid pressures acting on front and back surfaces of the valve member. The valve member includes a main body, a seat member, a securing member, and a pressing frame The seat member includes an elastic discoid sealing member, main and discharge seat surfaces, and communication holes open at a region between the main and discharge seat surfaces forming the vent hole. The securing member secures the seat member to the valve member main body. The pressing frame is at the circumference of the seat member.

Abstract: An image forming apparatus includes a first image bearer, a lubricant dispenser to apply lubricant to the first image bearer, and a controller to adjust a spatial interval during image formation between successive recording media on each of which an image is formed, according to a total amount of toner attached to the first image bearer for each of the successive recording media, to apply the lubricant to the first image bearer.

Abstract: Organic light-emitting devices having a multi-component organic electroluminescent layer. The organic electroluminescent layer comprises a phosphorescent dopant and a host material that is a mixture of at least three different compounds: a wide band gap host compound, an electron-transporting host compound, and a hole-transporting host compound. Use of such a multi-component organic electroluminescent layer may improve device efficiency and lifetime.

Abstract: An image forming apparatus includes a color toner image forming device, a fixing device, a cooling device, a colorless toner image forming device, and a control device. The color toner image forming device forms a toner image on a recording medium with a color toner. The fixing device heats the toner image on the recording medium to fix the toner image on the recording medium. The cooling device cools the fixed toner image. The colorless toner image forming device forms a toner image on the recording medium with a colorless toner having a storage elastic modulus of 100 or less and a loss tangent of 10 or greater at a heating temperature of the fixing device. The control device controls cooling power of the cooling device based on whether or not the colorless toner image forming device forms the toner image.

Abstract: The present disclosure provides novel compounds based on azadibenzothiophenes, azadibenzofurans and azadibenzoselenophenes with at least two nitrogen atoms in the aza rings. The compounds can be used in green, red, yellow and white emitting devices as electron-transporting hosts.

Abstract: An organic electroluminescence device utilizes a novel combination comprising one or more biscarbazole derivative compounds as the phosphorescent host material in combination with a green phosphorescent dopant material in the light emitting region of the device, where the biscarbazole derivative compounds are represented by a formula (1A) or (1B) below; where A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3; and the green phosphorescent dopant material is a phosphorescent organometallic complex having a chemical structure represented by LL?L?M wherein M is a metal that forms octa

Abstract: The present invention relates to metal complexes having novel ligands. The compounds are useful in organic light emitting devices (OLEDs), particularly as emitting dopants. The incorporation of these novel ligands provides red phosphorescent materials with good external quantum efficiency, good color, and long lifetime.