Abstract: A printer includes a feeding shaft, a rolling shaft, a conveyance unit, a print head, and a turning force generation mechanism. The feeding shaft rotatably holds a supply roll in which the ink ribbon is rolled. The rolling shaft rotatably holds a collection roll in which the ink ribbon fed from the supply roll is rolled. The conveyance unit conveys a printing medium along the ink ribbon that moves from the supply roll toward the collection roll. The print head prints by bringing the ink ribbon into contact with the printing medium conveyed by the conveyance unit. The turning force generation mechanism generates a turning force in a direction in which the ink ribbon is rolled around the rolling shaft during back-feeding of moving the ink ribbon in a reverse direction by rotating the feeding shaft in a direction reverse to a feeding direction of the ink ribbon.

Abstract: A printer includes a conveyance unit, a print head, and a braking member. The conveyance unit includes first and second rollers arranged in a state of being in pressure contact with each other with a conveyance path for conveying a long printing medium interposed therebetween, and applies a conveyance force to the printing medium by rotating the first and second rollers. The print head is disposed upstream of a position where the conveyance unit applies the conveyance force in a forward direction along the conveyance path, and performs printing on the printing medium conveyed in the forward direction through the conveyance path.

Abstract: According to one embodiment, there is provided a cutting device including a cutting section configured to cut a conveyed long cloth medium into a predetermined length, a placement surface for placing the cloth medium cut by the cutting section, and a paddle section attached to a rotation shaft that is rotatable in a conveyance direction of the cloth medium, configured to come into contact with the placement surface by rotating around the rotation shaft, and configured to scrape out the cloth medium in the conveyance direction.

Abstract: A printer according to an embodiment includes a conveyance guide, a printing section, a position sensor, an arithmetic section, and a setting section. The conveyance guide guides an end portion in the width direction of a print medium and determines a conveyance position in the width direction of the print medium. The printing section prints on the print medium. The position sensor outputs a signal, which changes in proportion to a position in the width direction of the conveyance guide, and detects the position in the width direction of the conveyance guide. The arithmetic section creates a linear function indicating a proportional relation between the position in the width direction of the conveyance guide and the output signals. The setting section calculates the position in the width direction of the conveyance guide using the linear function and sets a printing start position in the width direction.

Abstract: A support member for a heater includes a main body extending longitudinally between a pair of end portions and a pair of first contact portions. Each first contact portion is coupled to one of the end portions of the main body. A gap is formed between each first contact portion and the main body. The support member is configured such that, when the heater is coupled to the support member (a) the gaps each receive the heater, (b) the first contact portions each engage a first surface side of the heater, and (c) the main body engages a second surface side of the heater opposite the first surface side.

Abstract: A heater assembly includes a tubular body, a heater, and a support member. The tubular body is formed in a tubular shape and has a length that extends longitudinally. The heater is received within the tubular body. The heater provides thermal energy in response to being electrically energized. The heater includes a first surface side extending laterally and longitudinally along an inner peripheral surface of the tubular body. The heater includes n electrical contact, through which electrical energy is supplied to the heater. The support member is coupled to the heater and extends longitudinally. The support member defines an opening that exposes the electrical contact. The support member is configured to bend to facilitate coupling the heater to the support member.

Abstract: A heater assembly includes a tubular body, a heater, and a support member. The tubular body is formed in a tubular shape and has a length that extends longitudinally. The heater is received within the tubular body. The heater provides thermal energy in response to being electrically energized. The heater includes a first surface side extending laterally and longitudinally along an inner peripheral surface of the tubular body. The heater includes n electrical contact, through which electrical energy is supplied to the heater. The support member is coupled to the heater and extends longitudinally. The support member defines an opening that exposes the electrical contact. The support member is configured to bend to facilitate coupling the heater to the support member.

Abstract: A pressing rotator can contact a rotatable member. An arm rotatably supports the pressing rotator and changes the distance from a rotation center of the pressing rotator to the rotatable member by rotation. A pusher is rotatable around a rotation center of the arm. An elastic member is located between the arm and the pusher and biases the arm in a direction in which the pressing rotator contacts the rotatable member. A cam follower is mounted on the pusher. The cam can contact A cam follower and is rotatable around a first rotation center. The distance from the rotation center of the arm to the first rotation center of the cam is shorter than the distance from the rotation center of the arm to the center of the cam follower.

Abstract: A fixing device includes a heating device, a fixing belt, a pressing roller, a thermostat, and a temperature sensor. The fixing belt is heated by the heating device. The pressing roller is pressed toward the outer surface of the fixing belt, and forms a fixing nip portion through which a recording medium passes between the pressing roller and the outer surface of the fixing belt. The thermostat is disposed in proximity to the fixing belt. The temperature sensor is disposed in proximity to the fixing belt, and detects the temperature of the fixing belt and outputs a detection signal to a temperature control portion of the heating device. The thermostat and the temperature sensor are disposed on the same surface side of the fixing belt and also in the same phase position in the width direction of the fixing belt.

Abstract: A fixing device includes a belt holding member, a fixing belt, a pressing roller, and a peeling member. The pressing roller forms a fixing nip portion through which a recording medium as a fixing target passes between the pressing roller and the fixing belt. The peeling member separates the recording medium having passed through the fixing nip portion from the fixing belt. The peeling member includes a guide wall which guides the recording medium having passed through the fixing nip portion. The guide wall includes a belt facing portion which faces the outer surface of the fixing belt in a non-contact state, and an extending portion which extends to the outside in the width direction of the fixing belt continuously from the belt facing portion. The belt holding member includes an abutting surface which abuts on the extending portion of the end face of the guide wall.

Abstract: A technique of preventing toner from adhering to a guide which guides a change of a conveying direction of a paper by the paper on which a toner image is formed contacting with the guide is provided. The technique includes: a concave guide, having a concave guide surface, which guides conveyance of a paper so as to change a conveyance direction of the conveyed paper; and a guiding roller provided in the vicinity of a position on the concave guide surface of the concave guide where a front edge of the paper conveyed toward the concave guide abuts so as to have a roller surface project from the concave guide surface.

Abstract: An embodiment of the present invention relates to a fuser unit including first and second temperature detecting mechanisms that detect the temperature at the center in an axial direction of a first roller member in non-contact with the first roller member, a third temperature detecting mechanism that detects the temperature at an end in the axial direction of the first roller member and in an area where a developer carried by a bearing member is not present, and fourth and fifth temperature detecting mechanisms that detect the temperature at the center in an axial direction of a second roller member in non-contact with the second roller member. The detecting mechanism that detects the temperature in the area (the position) where the developer carried by the bearing member is not present may come into contact with the first roller member.

Abstract: According to an embodiment of the invention, an image forming apparatus comprises a fixing unit including: a pair of rollers rotating with a recording sheet holding a toner image interposed therebetween; a driving motor rotating at least one of the pair of rollers; a heater being built in at least one of the pair of rollers to heat the roller; a timer measuring a period of time after starting operation; and a rotation speed control unit controlling the driving motor so that one of the rollers rotates in a speed higher than a rotation speed under normal conditions until a predetermined time measured by the timer.

Abstract: A developer image is formed by selectively supplying a developer based on a potential distribution corresponding to image information, the formed developer image is electrostatically attracted and transferred to a sheet material, the developer image is fixed to the sheet material by applying heat and pressure to the developer image transferred to the sheet material and the sheet material, and a drive force in a forward direction applied to the sheet material is cut off in a case where the sheet material is not ejected in a specified time, and then a drive force in a direction opposite to that of the drive force in the forward direction is applied for a specified time, and therefore, it is possible to prevent a sheet jammed in a fuser unit from being concealed in the fuser unit.

Abstract: A technique of preventing toner from adhering to a guide which guides a change of a conveying direction of a paper by the paper on which a toner image is formed contacting with the guide is provided. The technique includes: a concave guide, having a concave guide surface, which guides conveyance of a paper so as to change a conveyance direction of the conveyed paper; and a guiding roller provided in the vicinity of a position on the guide surface of the concave guide where a front edge of the paper conveyed toward the concave guide abuts so as to have a roller surface project from the guide surface.

Abstract: A fixing device has a separation claw whose end portion is installed touchably with an outer periphery surface of a press roller. The separation claw makes the end portion make contact with the outer peripheral surface of the press roller, thereby separates a paper from the press roller. A rotation central shaft of the separation claw is rotatably supported by a support member and when force for pressing the end portion of the separation claw inside the press roller is given, the rotation central shaft of the separation claw is led so that the end portion of the separation claw is shifted in the direction of separating from the press roller.

Abstract: A fixing apparatus is provided with a fixing device which includes a fixing roller and a pressing roller pressed against the fixing roller, the fixing roller and the pressing roller defining a region through which sheets of various sizes pass while being heated, an induction-heating device which heats the fixing roller by induction heating and which includes first and second excitation coil units provided inside the fixing roller and spaced from each other by a predetermined distance in an axial direction of the fixing roller, and a control device which varies an output applied to the first and second excitation coils in accordance with a surface temperature as measured in the axial direction of the fixing roller. The first and second excitation coil units have widths which are greater than those of maximal-size sheets by 20 to 40 mm.