Abstract: A lubricating oil composition may contain a base oil (A) and a dispersant-type viscosity index improver (B), in which the nitrogen atom content based on the solid content of the dispersant-type viscosity index improver (B) is 0.50 to 1.50% by mass, and the weight-average molecular weight (Mw) thereof is 100,000 or more, and the content in terms of the solid content based on the total amount of the composition of the dispersant-type viscosity index improver (B) is more than 0.05% by mass and less than 5.0% by mass. The lubricating oil composition may exert excellent wear resistance in a state contaminated with soot.

Abstract: Provided is an endless belt which can improve rotational durability when compared to a conventional endless belt. This endless belt is formed in a tubular shape and is used for electronic photographing apparatuses. The endless belt has an edge part which is formed on at least one belt edge in the belt width direction and which has an end that is tapered toward the outside of the belt width direction. The edge part can be configured by a first edge part formed by intersecting an outer inclined surface with a belt inner circumferential surface, a second edge part configured by intersecting an inner inclined surface with a belt outer circumferential surface, or a third edge part configured by intersecting the outer inclined surface with the inner inclined surface.

Abstract: Provided is an endless belt which can improve rotational durability when compared to a conventional endless belt. This endless belt is formed in a tubular shape and is used for electronic photographing apparatuses. The endless belt has an edge part which is formed on at least one belt edge in the belt width direction and which has an end that is tapered toward the outside of the belt width direction. The edge part can be configured by a first edge part formed by intersecting an outer inclined surface with a belt inner circumferential surface, a second edge part configured by intersecting an inner inclined surface with a belt outer circumferential surface, or a third edge part configured by intersecting the outer inclined surface with the inner inclined surface.

Abstract: A light emitting device includes light emission units, a voltage generator, a lighting selector, and a drive control unit. Each light emission unit includes light emitting component groups each of which includes a light emitting component array and a drive switch. The light emitting component array includes light emitting components that are connected in series. The drive switch is connected in series to the light emitting component array to drive the light emitting component array. The lighting selector selects the light emitting component group that is to be lit on according to brightness intensity required for each light emission unit. The drive control unit controls each drive switch independently according to the selection by the lighting selector and controls to light on each light emitting component group independently and controls the voltage generator to generate a common drive voltage.

Abstract: A light emitting device includes light emitting component sets, a voltage measurement circuit, a voltage generator, and a drive controller. The voltage measurement circuit is configured to measure voltages at connecting points between light emitting component lines and drive switches. The voltage generator includes a plurality of smoothing capacitors for the light emitting component sets, respectively. The voltage generator is configured to generate a drive voltage applied to the light emitting component sets using one of the smoothing capacitors. The drive controller is configured to select the smoothing capacitor corresponding to the light emitting component set, the measured voltage of which is the lowest among the light emitting component sets on which lighting control is performed to alter the drive voltage according to alteration of the lighting control. The drive controller is configured to control the voltage generator to generate the drive voltage using the selected smoothing capacitor.

Abstract: A light emitting component board group includes first and second light emitting component boards that are rectangular in shape. The first light emitting component board has first short and long sides, and includes a first input connector provided on one of the first short sides, a first light emitting component group, a first output connector provided on another one of the first short sides. The second light emitting component board has second short and long sides, is arranged in adjacent to the first light emitting component board, and includes a second output connector provided close to one of the second short sided that is close to the one of the first short sides, a second light emitting component group, a second input connector provided close to another one of the short sides that is close to the other one of the first short sides.

Abstract: An LED backlight includes a light emitting unit, a driver, a current divider, and a power supply unit. The lighting unit includes a plurality of LEDs connected in series. The driver is connected in series with the LEDs and configured to control driving of the light emitting unit. The current divider is connected in parallel to the driver of a series circuit including the light emitting unit and the driver. The power supply unit is configured to apply a voltage to the series circuit.

Abstract: In order to provide a power supply control system for driving power supply units efficiently depending on difference between loads, a power supply control system for controlling power supply operation to supply power to an electronic device having a first drive mode and a second drive mode that is driven under a load lower than a load in the first drive mode includes: power supply units each of which includes transformers; and a PFC switching/power supply unit switching section (power supply unit selection section) that, depending on which one of the first and second drive modes the electronic device is in, selects power supply unit(s) to be used from the power supply units, wherein the PFC switching/power supply unit switching section selects the one or a plurality of power supply units to be used from the plurality of power supply units such that each power supply unit to be used to supply power to the electronic device in the second drive mode is one or some of each power supply unit to be used to supply p

Abstract: Provided is a static eliminator capable of holding ion balance uniform regardless of a distance from the static eliminator. The static eliminator includes: an electrode driving device that alternately and repeatedly applies, to a discharge electrode, a positive drive voltage and a negative drive voltage as drive voltages for corona discharge; decreases a ratio of the application time of the positive drive voltage while relatively increasing the voltage value of the positive drive voltage in a case of increasing positive ions, and increases the ratio of the application time of the positive drive voltage while relatively decreasing the voltage value of the positive drive voltage in a case of increasing negative ions.

Abstract: A light emitting component board group includes first and second light emitting component boards that are rectangular in shape. The first light emitting component board has first short and long sides, and includes a first input connector provided on one of the first short sides, a first light emitting component group, a first output connector provided on another one of the first short sides. The second light emitting component board has second short and long sides, is arranged in adjacent to the first light emitting component board, and includes a second output connector provided close to one of the second short sided that is close to the one of the first short sides, a second light emitting component group, a second input connector provided close to another one of the short sides that is close to the other one of the first short sides.

Abstract: A light emitting device includes light emission units, a voltage generator, a lighting selector, and a drive control unit. Each light emission unit includes light emitting component groups each of which includes a light emitting component array and a drive switch. The light emitting component array includes light emitting components that are connected in series. The drive switch is connected in series to the light emitting component array to drive the light emitting component array. The lighting selector selects the light emitting component group that is to be lit on according to brightness intensity required for each light emission unit. The drive control unit controls each drive switch independently according to the selection by the lighting selector and controls to light on each light emitting component group independently and controls the voltage generator to generate a common drive voltage.

Abstract: A light emitting device includes light emitting component sets, a voltage measurement circuit, a voltage generator, and a drive controller. The voltage measurement circuit is configured to measure voltages at connecting points between light emitting component lines and drive switches. The voltage generator includes a plurality of smoothing capacitors for the light emitting component sets, respectively. The voltage generator is configured to generate a drive voltage applied to the light emitting component sets using one of the smoothing capacitors. The drive controller is configured to select the smoothing capacitor corresponding to the light emitting component set, the measured voltage of which is the lowest among the light emitting component sets on which lighting control is performed to alter the drive voltage according to alteration of the lighting control. The drive controller is configured to control the voltage generator to generate the drive voltage using the selected smoothing capacitor.

Abstract: An LED backlight includes a light emitting unit, a driver, a current divider, and a power supply unit. The lighting unit includes a plurality of LEDs connected in series. The driver is connected in series with the LEDs and configured to control driving of the light emitting unit. The current divider is connected in parallel to the driver of a series circuit including the light emitting unit and the driver. The power supply unit is configured to apply a voltage to the series circuit.

Abstract: Provided is a static eliminator capable of holding ion balance uniform regardless of a distance from the static eliminator. The static eliminator includes: an electrode driving device that alternately and repeatedly applies, to a discharge electrode, a positive drive voltage and a negative drive voltage as drive voltages for corona discharge; decreases a ratio of the application time of the positive drive voltage while relatively increasing the voltage value of the positive drive voltage in a case of increasing positive ions, and increases the ratio of the application time of the positive drive voltage while relatively decreasing the voltage value of the positive drive voltage in a case of increasing negative ions.

Abstract: In order to provide an apparatus that is capable of being driven with low power consumption by optimizing efficiency of each light emitting element regardless of which luminance mode is selected, a light source apparatus in accordance with the present invention includes a plurality of LEDs (50) (light emitting elements), said light source apparatus having a first luminance mode and a second luminance mode, the second luminance mode being a mode in which the light source apparatus is driven so that luminance is lower than luminance in the first luminance mode, the plurality of LEDs (50) being classified into (i) a first group (LEDs (50a) and LEDs (50b)) for use in the first luminance mode and (ii) a second group (LEDs (50b)) for use in the second luminance mode, and in a part of a light emitting element area (51) where the plurality of LEDs (50) are provided, LEDs (50) that belong to the second group being distributed less densely than LEDs (50) that belong to the first group.

Abstract: An endless belt for an electrophotographic device having high degrees of flexibility and wear resistance in a surface portion of the elastic layer is provided. The endless belt for an electrophotographic device, includes a base layer, and an elastic layer which is formed on a surface of the base layer, by using a rubber composition including at least one rubber material and at least one inorganic filler in which the elastic layer has 40-75% by mass of a total organic component, and a product P of an indentation Young's modulus (MPa) ? and a fracture strain (%) ? that is within a range of 6000-50000.

Abstract: In order to provide a power supply control system for driving power supply units efficiently depending on difference between loads, a power supply control system for controlling power supply operation to supply power to an electronic device having a first drive mode and a second drive mode that is driven under a load lower than a load in the first drive mode includes: power supply units each of which includes transformers; and a PFC switching/power supply unit switching section (power supply unit selection section) that, depending on which one of the first and second drive modes the electronic device is in, selects power supply unit(s) to be used from the power supply units, wherein the PFC switching/power supply unit switching section selects the one or a plurality of power supply units to be used from the plurality of power supply units such that each power supply unit to be used to supply power to the electronic device in the second drive mode is one or some of each power supply unit to be used to supply p

Abstract: The ionizer includes a nozzle having a discharge electrode for inducing corona discharge by application of high voltage to eject ions, an emission port for emitting supplied gas together with the ejected ions, and a gas channel for guiding supplied gas to the emission port. Herein, a velocity of flow of the gas immediately after emission from the emission port exceeds a velocity of sound, and a gas pressure at the emission port is not less than an atmospheric pressure. The gas channel has a throat part for narrowing the gas channel such that a channel area gradually decreases, and a ratio of the atmospheric pressure to a gas pressure at a position where the channel area does not vary, the position being located forward of the throat part, is not more than 0.528.

Abstract: The ionizer includes a nozzle having a discharge electrode for inducing corona discharge by application of high voltage to eject ions, an emission port for emitting supplied gas together with the ejected ions, and a gas channel for guiding supplied gas to the emission port. Herein, a velocity of flow of the gas immediately after emission from the emission port exceeds a velocity of sound, and a gas pressure at the emission port is not less than an atmospheric pressure. The gas channel has a throat part for narrowing the gas channel such that a channel area gradually decreases, and a ratio of the atmospheric pressure to a gas pressure at a position where the channel area does not vary, the position being located forward of the throat part, is not more than 0.528.

Abstract: An endless belt for use as an intermediate transfer belt or a transfer-sheet transfer belt in an electrophotographic apparatus using electrophotographic technologies such as a full-color LBP (Laser Beam Printer) or a full-color PPC (Plane Paper Copier). At least a base layer of the belt comprises a modified polyamide imide resin formed by copolymerizing: (A) an aromatic isocyanate compound; (B) an aromatic polycarboxylic acid anhydride; and (C) a polymer having carboxylic acids at both terminals thereof.