摘要:
An image heating apparatus includes an endless belt; first, second, third and fourth resistors having resistances R1, R2, R3 and R4, arranged in this order from an upstream side in a feeding direction of the recording material, and R1=R2 and R3=R4. The connection state of the resistors is switchable between a first state in which the first and second resistors are connected in parallel, the third and fourth resistors are connected in parallel, and a set of the first and second resistors and a set of the third and fourth resistors are connected in parallel, and a second state in which the first resistor second resistors are connected in series, the third and fourth resistors are connected in series, and a set of the first and second resistors and a set of the third and fourth resistors are connected in parallel.
摘要:
The image heating apparatus for heating an image formed on a recording medium has an endless belt with a base layer made of a metal material; a heater that contacts with an inner surface of the endless belt; and a backup member that forms a nip portion together with the heater through the endless belt. The image formed on the recording medium is heated while being pinched and conveyed in the nip portion. An end surface of the base layer includes a plane region and a curved surface region. When the thickness of the base layer is t, the width of the plane region in a thickness direction of the base layer is h, and the flatness ratio H of the end surface of the base layer is defined as h/t, the flatness ratio H satisfies 50%≦H≦90%.
摘要:
The image heating apparatus includes a heater has a first and heat-generation segment having a plurality of heat generating parts therein in the longitudinal direction respectively, and the heat generating parts each having a first electro-conductive pattern provided along the longitudinal direction on a substrate, and a second electro-conductive pattern provided along the longitudinal direction on said substrate and has a region that overlaps with said first electro-conductive pattern in the longitudinal direction, and a heat generating resistor which electrically connects the respective overlapping regions of said first electro-conductive pattern and said second electro-conductive pattern with each other and generates heat by a supplied electric power. It simultaneously prevents the temperature in a non-sheet feeding portion from rising and secures fixing properties in a gap between the divided heat generating resistors, and a heater used in this image heating apparatus.
摘要:
An unlock control device has an unlocking mechanism to unlock an opening and closing member on the assumption that a radio signal transmitted by a legitimate portable transmitter has been received. A key cylinder selectively takes one of an unlock position and a lock position by an insertion of a legitimate key, the unlock position for permitting unlocking the opening and closing member, the lock position for limiting unlocking the opening and closing member. A position detector detects a selected position of the key cylinder. A control part limits unlocking by the unlocking mechanism when the selected position detected by the position detector is the lock position.
摘要:
A heating assembly having a press roller which has an elastic layer incorporated dispersedly with voids formed by resin microballoons. The press roller has a low thermal conductivity, hence heat from a heating means can effectively be utilized. It has also a low hardness, so that a pressure contact nip formed between it and the heating means can be made wider.
摘要:
An image heating apparatus includes an endless belt; first, second, third and fourth resistors having resistances R1, R2, R3 and R4, arranged in this order from an upstream side in a feeding direction of the recording material, and R1=R2 and R3=R4. The connection state of the resistors is switchable between a first state in which the first and second resistors are connected in parallel, the third and fourth resistors are connected in parallel, and a set of the first and second resistors and a set of the third and fourth resistors are connected in parallel, and a second state in which the first resistor second resistors are connected in series, the third and fourth resistors are connected in series, and a set of the first and second resistors and a set of the third and fourth resistors are connected in parallel.
摘要:
Regarding Spinel-type lithium manganese-based composite oxide (LMO) to be used as a positive electrode active substance material for lithium battery, a novel LMO is provided, which is capable of maintaining discharge capacity even if charging and discharging are repeated under high temperatures. An LMO in which the crystallite size is 250 nm to 350 nm, the strain is 0.085 or less and the specific surface area increase rate when placed in water at 25° and pH 7 and ultrasonically dispersed at 40 W ultrasonic intensity for 600 seconds is 10.0% or less, can prevent a decrease in the output that accompanies the repetition of charging and discharging while at a high temperature.
摘要:
An acceleration detector comprising a rotor rotatably supported within a housing and rotating against the urging force of a torsion spring based on acceleration, a pair of contact terminals contacting each other to be in an electrically connected state by rotation of the rotor at an inner end portion provided within the housing, and a supporting portion integrally formed with the rotor and supporting the torsion spring. The supporting portion is displaced by a predetermined amount in a predetermined direction from the rotary center of the rotor so that the spring effect center when torque is exerted on the torsion spring by rotation of the rotor substantially corresponds to the rotary center of the rotor. This construction of the acceleration detector produces the desired performance approximating the design value in an acceleration detector.
摘要:
An abnormality detecting apparatus for an air temperature sensor which can detect an abnormality of the air temperature sensor with high reliability. The determination of abnormality is performed based on a detected temperature of the air temperature sensor when it is determined that the engine is in a sufficiently warmed state and when it is determined that the vehicle is stopped. The determination may be performed based on a temperature detected by the air temperature sensor during a predetermined period after a start of the engine when the start of the engine is detected and when it is determined that the engine is in the sufficiently warmed state. Additionally, the determination may be performed based on a temperature detected by the air temperature sensor after detecting a start of a cooling fan.