Abstract: A sheet feeding adapter includes a base plate which is placed on an upper surface of a sheet bundle set in a sheet feeding cassette and having a predetermined size and movable in a sheet feeding direction through guidance of a pair of first regulating plates, a sheet bundle having a small width size being set on an upper surface of the base plate, and a pair of second regulating plates that are upright from the upper surface of the base plate and regulate a position in a width direction of a sheet bundle set on the upper surface of the base plate and having a small width size, wherein the base plate is movable between a sheet feeding position, at which the sheet bundle having the small width size can be fed, and a withdrawing position positioned at a rear side from the sheet feeding position.

Abstract: A sheet feeding adapter includes a base plate which is placed on an upper surface of a sheet bundle set in a sheet feeding cassette and having a predetermined size and movable in a sheet feeding direction through guidance of a pair of first regulating plates, a sheet bundle having a small width size being set on an upper surface of the base plate, and a pair of second regulating plates that are upright from the upper surface of the base plate and regulate a position in a width direction of a sheet bundle set on the upper surface of the base plate and having a small width size, wherein the base plate is movable between a sheet feeding position, at which the sheet bundle having the small width size can be fed, and a withdrawing position positioned at a rear side from the sheet feeding position.

Abstract: A developing device includes a developer container for storing developer containing carrier and toner, the developer container including a first compartment and a second compartment in which the developer is stirred and fed, a developing roller, and a sensor including a coil. A pair of communication portion is disposed on both ends in a longitudinal direction of the compartments. In addition, a gap is formed between the first compartment and the second compartment, and a part of the first compartment adjacent to the gap is a cylindrical portion through which the developer passes. A flat cable as a coil passes through the gap and is wound around the cylindrical portion so as to form a winding by overlapping both end portions of the flat cable in a state where terminals of wires are shifted by one pitch.

Abstract: A developing device includes a developer container for storing developer containing carrier and toner, the developer container including a first compartment and a second compartment in which the developer is stirred and fed, a developing roller, and a sensor including a coil. A pair of communication portion is disposed on both ends in a longitudinal direction of the compartments. In addition, a gap is formed between the first compartment and the second compartment, and a part of the first compartment adjacent to the gap is a cylindrical portion through which the developer passes. A flat cable as a coil passes through the gap and is wound around the cylindrical portion so as to form a winding by overlapping both end portions of the flat cable in a state where terminals of wires are shifted by one pitch.

Abstract: A relay connector (1) includes: a first input/output unit (11) to which a cable connector (92) connected to one end of a cable (91) is detachably connected; a second input/output unit (12) that is detachably connected to a board connector (93) provided in a board (94) to which the cable connector (92) can be detachably connected, and that is electrically connected to the first input/output unit (11); and a core (13) that suppress noise radiated by a signal flowing between the first input/output unit (11) and the second input/output unit (12).

Abstract: The detection sensitivity of a variation in resonant frequency is increased, and thus a toner concentration is accurately detected. In a sensor device that includes an LC resonant circuit which outputs a pulse signal having a frequency corresponding to the toner concentration, a multiplier portion which multiplies the pulse signal output from the LC resonant circuit and a concentration detection portion which detects the toner concentration based on the pulse signal multiplied by the multiplier portion, the LC resonant circuit includes a detection coil and a capacitor and outputs a pulse signal having a frequency corresponding to the toner concentration. The multiplier portion multiplies the frequency of the pulse signal output from the LC resonant circuit. The concentration detection portion subtracts a predetermined offset pulse number from the pulse signal multiplied by the multiplier portion and detects the toner concentration based on the subtracted pulse number.

Abstract: The detection sensitivity of a variation in resonant frequency is increased, and thus a toner concentration is accurately detected. In a sensor device that includes an LC resonant circuit which outputs a pulse signal having a frequency corresponding to the toner concentration, a multiplier portion which multiplies the pulse signal output from the LC resonant circuit and a concentration detection portion which detects the toner concentration based on the pulse signal multiplied by the multiplier portion, the LC resonant circuit includes a detection coil and a capacitor and outputs a pulse signal having a frequency corresponding to the toner concentration. The multiplier portion multiplies the frequency of the pulse signal output from the LC resonant circuit. The concentration detection portion subtracts a predetermined offset pulse number from the pulse signal multiplied by the multiplier portion and detects the toner concentration based on the subtracted pulse number.

Abstract: A packaged image forming apparatus includes an image forming apparatus, and a packaging member for packaging the image forming apparatus. The image forming apparatus includes a power supply connection unit to which one end of a power cable, the other end of which is connected to an external power source, is detachably connected, a power supply voltage generation unit receiving a voltage via the power cable and generating a power supply voltage, a load circuit operating based on the power supply voltage, a status determination unit determining whether a connection status of the load circuit is normal, and a communication interface unit sending a determination result to the external device. The packaging member includes an access part enabling the one end of the power cable to be connected to the power supply connection unit in a state where the image forming apparatus is packaged.

Abstract: A relay connector (1) includes: a first input/output unit (11) to which a cable connector (92) connected to one end of a cable (91) is detachably connected; a second input/output unit (12) that is detachably connected to a board connector (93) provided in a board (94) to which the cable connector (92) can be detachably connected, and that is electrically connected to the first input/output unit (11); and a core (13) that suppress noise radiated by a signal flowing between the first input/output unit (11) and the second input/output unit (12).

Abstract: A status detection device includes a heater, a first power line for supplying power to one end of the heater, a second power line for supplying power to the other end of the heater, a switch portion disposed in the first power line, an overheat protection portion for disconnecting the second power line when temperature exceeds a predetermined temperature, and a zero cross signal generation portion which outputs a zero cross signal in accordance with a waveform of an AC power supply, and outputs zero cross signals having different output values in a case where voltage of the first power line is higher than voltage of the second power line and in a case where the voltage of the second power line is higher than, the first power line.

Abstract: A status detection device includes a heater, a first power line for supplying power to one end of the heater, a second power line for supplying power to the other end of the heater, a switch portion disposed in the first power line, an overheat protection portion for disconnecting the second power line when temperature exceeds a predetermined temperature, and a zero cross signal generation portion which outputs a zero cross signal in accordance with a waveform of an AC power supply, and outputs zero cross signals having different output values in a case where voltage of the first power line is higher than voltage of the second power line and in a case where the voltage of the second power line is higher than, the first power line.

Abstract: A packaged image forming apparatus includes an image forming apparatus, and a packaging member for packaging the image forming apparatus. The image forming apparatus includes a power supply connection unit to which one end of a power cable, the other end of which is connected to an external power source, is detachably connected, a power supply voltage generation unit receiving a voltage via the power cable and generating a power supply voltage, a load circuit operating based on the power supply voltage, a status determination unit determining whether a connection status of the load circuit is normal, and a communication interface unit sending a determination result to the external device. The packaging member includes an access part enabling the one end of the power cable to be connected to the power supply connection unit in a state where the image forming apparatus is packaged.

Abstract: An image forming device in which a fixing unit is powered from the power supply, and a cooling unit is driven by electricity obtained by supplying waste heat from the fixing roller to a thermoelectric conversion device. After turning the image forming device ON, when the temperature of the fixing roller reaches a certain temperature thermoelectromotive force is generated in the thermoelectric conversion device. When the power supply is turned OFF, the thermoelectromotive force in the thermoelectric conversion device becomes zero when the temperature of the fixing roller drops to a certain temperature. Also, a delay circuit is provided between the thermoelectric conversion device and the cooling fan, so supply of electricity to the cooling fan is later than the time that thermoelectromotive force is generated, and the time that power supply to the cooling fan stops is also later than the time that the thermoelectromotive force becomes zero.