Abstract: A fixing device includes first and second rotation members, a heater holder having a protrusion, and a heater having a heating element and a substrate having a longitudinal direction and a thickness direction. The protrusion is disposed at a position, which is outside a nip portion and on a downstream side in a conveyance direction of a recording material, and comes into contact with the first rotation member. The protrusion protrudes in the thickness direction toward the second rotation member without crossing a nip tangent line that passes through a contact surface between the first rotation member and the second rotation member and extends parallel to the contact surface, and a length in the longitudinal direction of the protrusion is shorter than a length in the longitudinal direction of the recording material of a maximum size which is able to be conveyed.

Abstract: A fixing device includes an endless fixing belt, a heater provided inside of the fixing belt, a rotatable pressing member contacting an outer peripheral surface of the fixing belt and configured to form a fixing nip portion, and a holding member to hold the heater by an adhesive. The holding member includes a first portion to which the adhesive is applied and a second portion in a region different from the first portion. In a state in which the fixing device is a new state, the heater and the holding member are adhered by the adhesive applied in the first portion. In a state in which the fixing device is reused from the new state, the heater and the holding member are adhered by the adhesive applied in the second portion.

Abstract: A heating device including: a rotating member for heating, an opposing member, which is arranged so as to be opposed to the rotating member, and forms a nip portion together with the rotating member, and a biasing member, which is arranged inside the rotating member, has an opposing surface with respect to an inner peripheral surface of the rotating member, and biases the rotating member to the opposing member. The inner peripheral surface and the opposing surface are brought into contact with each other via a grease composition to form a sliding portion. The grease composition contains a base oil. The base oil contains a fluoropolymer having a specific structure and a perfluoropolyether having a specific kinematic viscosity and a specific evaporation loss and having a specific structure.

Abstract: A polymer film includes at least one type of polymer selected from the group consisting of a resin and rubber and fillers dispersed in the polymer; in which in a case where the polymer film is three-dimensionally analyzed with FIB-SEM, a film thickness of the polymer film is denoted by Tm, and a length of the filler in a film thickness direction of the polymer film is denoted by Lf, a proportion of the number of fillers having Lf/Tm of 0.01 or more and less than 1.0 to the number of all the fillers is more than 40% and less than 100%.

Abstract: An image forming apparatus includes a fixing unit and an apparatus main body. The fixing unit includes a heating unit, a pressure roller, first and second cam members, and a pressure force release unit. The pressure force release unit switches a position of the heating unit between a first position at which a predetermined pressure force is applied from the pressure roller to a fixing nip portion, and a second position at which the applied predetermined pressure force is reduced or released. The apparatus main body includes first and second doors that are opened and closed and contain the fixing unit. The first cam member rotates with an open and close of the first door, and the second cam member rotates with an open and close of the second door. A rotational center of the second cam member is arranged coaxially with a rotational center of the first cam member.

Abstract: A fixing device includes a fixing rotator, a pressure rotator, a fixing nip support, a heat source, and a reflector. The pressure rotator contacts an outer face of the fixing rotator to form a nip through which a recording medium conveyed in a conveyance direction passes. The fixing nip support has a receiving portion to receive a pressing force of the pressure rotator. The heat source inside a loop of the fixing rotator has a heat generation area having a first length in a width direction orthogonal to the conveyance direction. The reflector includes a contacting portion contacting the receiving portion of the fixing nip support and a reflecting portion facing the heat source to reflect radiant heat radiated by the heat source toward an inner face of the fixing rotator. The reflecting portion has a second length in the width direction longer than the first length.

Abstract: A transport roller pair including: a first-side roller provided with a plurality of roller portions spaced apart in a rotation axial line direction; a fixing device; and an image forming device is provided. The first-side roller includes roller portions. The transport roller pair further includes a second-side roller including a plurality of contact areas and a plurality of non-contact areas as areas other than the plurality of contact areas. At least the contact areas are covered with a release layer, and an outer diameter of each of the plurality of non-contact areas is smaller than an outer diameter of each of the plurality of contact areas. The second-side roller includes a shaft member integrally formed to have a stepped shape.

Abstract: The heating apparatus including a plurality of heat generation members including first, second and third generation members, the second heat generation member and the third heat generation member having lengths in a longitudinal direction shorter than a length of the first heat generation member, the heating apparatus including first, second, third, and fourth contacts, and a first switching unit configured to bring an electric path between the second contact and the fourth contact into one of a connecting state and an open state.

Abstract: A fixing device includes a heating rotating body, a pressure rotating body, and a fixing frame. The fixing frame supports the heating rotating body and the pressure rotating body. The fixing frame includes a pair of side plates and a plurality of stays. The side plates are disposed to face each other, and supports both axial end portions of the heating rotating body and both axial end portions of the pressure rotating body. The stays are disposed between the side plates. In a XYZ coordinate in which an axis along a direction in which the side plates face each other is defined as the X-axis, and axes perpendicular to the X-axis and perpendicular to each other are defined as the Y-axis and the Z-axis, each of the stays is fastened to the side plates at least two axial directions of the three axial directions of the XYZ coordinates.

Abstract: A fixing device includes a first rotator, a second rotator, a heater, a nip formation pad, and a separator. The second rotator contacts an outer circumferential surface of the first rotator to form a nip between the first rotator and the second rotator. The heater includes a resistive heat generator to heat the first rotator. The nip formation pad contacts an inner circumferential surface of the first rotator to form the nip. The separator separates a recording medium passing through the nip from the first rotator. The separator includes a separating surface and a contact. The separating surface is separated from the outer circumferential surface of the first rotator and separates the recording medium from the first rotator. The contact contacts the outer circumferential surface of the first rotator at a position where the first rotator is pinchable between the contact and the nip formation pad.

Abstract: A fixing device includes an endless belt, a rotatable pressing member, a pad member inside of the belt, and a sliding member held by the pad member and sliding on an inner circumferential surface of the belt in a nip. The rotatable pressing member nips and feeds a recording material in the nip in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a base material layer on which a plurality of projections projecting toward the rotatable pressing member are formed on a side sliding with the belt and a sliding layer provided on an outer surface of the plurality of projections. A shape of a surface of the sliding layer is a curved surface and a radius of curvature R of the curved surface satisfies 300 ?m?R?850 ?m.

Abstract: A fuser configured to nip a sheet by a heating member and a pressurizing member and to thermally fix an image formed in a toner on the sheet, is provided. The fuser includes a supporting member, a temperature sensor, and a sensor cover. The supporting member supports the heating member. The temperature sensor is attached to the supporting member and is configured to detect a temperature of the heating member without contacting the heating member. The sensor cover is located on a side of the temperature sensor opposite to the heating member to cover the temperature sensor. The sensor cover includes a base having an opening at an upper position with respect to the temperature sensor and a windshield wall located in adjacent to the base. The windshield wall protrudes upward and extends in a lengthwise direction for the heating member.

Abstract: A photosensitive drum is rotatable about a drum axis extending in a first direction. A frame includes a first side plate located at first end in the first direction and a second side plate spaced from the first side plate in the first direction. The frame rotatably supports the photosensitive drum between the first side plate and the second side plate in the first direction. The frame holds a developer cartridge. A lock lever is pivotable about a pivot axis extending in a second direction intersecting with the first direction. The lock lever is movable between a lock position at which the developer cartridge is locked on the frame and a release position at which the developer cartridge is unlocked from the frame.

Abstract: A heating unit urging member urges a first support body of a heating unit toward a second support body of a fixing unit with elastic force. The heating unit urging member brings the first support body into contact with the second support body and brings the second support body into contact with two struts. An interlocking mechanism moves the heating unit along a direction in which the heating unit and the fixing unit are arranged, in conjunction with movement of an operation portion. When the operation portion moves from a first position to a second position, the interlocking mechanism moves the first support body from a reference position where the first support body is in contact with the second support body to a retracted position where the first support body is separated from the second support body.

Abstract: A fixing belt includes a substrate layer inducting a first base resin and a first thermally conductive filler dispersed in the first base resin; and a release layer provided on the substrate layer, wherein the first base resin includes at least one selected from a polyimide, a polyamide, and a polyamideimide and the first thermally conductive filler includes at least one selected from carbon black, graphite, boron nitride (BN), carbon nanotubes (CNTs), and carbon fibers, and the substrate layer has a thermal conductivity in a thickness direction of about 1.5 W/m·K or more.

Abstract: The heating apparatus including a plurality of heat generation members including first, second and third generation members, the second heat generation member and the third heat generation member having lengths in a longitudinal direction shorter than a length of the first heat generation member, the heating apparatus including first, second, third, and fourth contacts, and a first switching unit configured to bring an electric path between the second contact and the fourth contact into one of a connecting state and an open state.

Abstract: A skeleton frame has a pair of corner columns facing each other. An image forming apparatus includes a pair of support shafts protruding inward from respective inner side surfaces in the pair of corner columns, and an opening/closing member rotatably supported on a lower end portion by the pair of support shafts. A specific member moves horizontally from an outer side of the skeleton frame through between the pair of corner columns and is attached inside the skeleton frame. At least one of the pair of support shafts is also used as a guide portion that guides the specific member when the specific member is inserted into the skeleton frame through between the pair of corner columns.

Abstract: An image formation apparatus according to an embodiment may include: an apparatus housing including a stacker and an opening provided at the stacker; a fixation device removably attached to the apparatus housing through the opening and including a handle rotatable between an upright position and a laid-flat position; and a laid-flat position-keeping detent mechanism. In a state where the fixation device is attached to the apparatus housing, a portion of the fixation device that is exposed from the opening provided at the stacker forms a portion of the stacker and a connector of the fixation device is mated to a connector of the apparatus housing. By at least a predetermined force being applied to the handle to transition the handle from the upright position to the laid-flat position, the laid-flat position-keeping detent mechanism allows the handle to transition to the laid-flat position and keeps the handle in the laid-flat position.

Abstract: A thermally conductive pipe includes a pipe having closed both end portions; a working fluid that is enclosed in inside of the pipe and that is vaporized and liquefied; and a liquid transfer member that extends in a longitudinal direction of the inside of the pipe and that transfers the liquefied working fluid at least in the longitudinal direction. An occupancy rate of a cross-sectional area of the liquid transfer member to a cross-sectional area in a transverse direction of the inside of the pipe is in a range of 20% or more and 50% or less.

Abstract: A fixing device for fixing a toner image on a sheet includes a rotatable fixing belt; a heating roller wherein the belt is stretched and entrained around the heating roller to heat the belt; a pressing pad of resin material provided inside of the belt; a rotatable pressing member contacting an outer peripheral surface of the belt and pressing against the pad through the belt to form a nip configured to nip and feed the sheet; a supporting metal stay supporting the pad and including a planar bottom surface faced to the pad; and projected portions integrally molded with the pad and provided along a widthwise direction of the pad, the projected portions projecting and contacting to the bottom surface such that the pad is supported by the stay. A contact area between the projected portions and the bottom surface is not less than 5% and not more than 40% of the area of the bottom surface.

Abstract: A toner image fixing device include a fixing belt; a heating roller training the belt around; a pressing pad of resin material provided inside the belt; a rotatable pressing member contacting the belt and pressing against the pad through the belt to form a nip for nipping and feeding the sheet; a supporting stay supporting the pad and including a surface contacting the pad, one of the pad and the stay being provided with a projection, and the other being provided with a recess engaged with the projection at an engaging position; and a separation plate provided without contact to the belt at a position opposed to the pad downstream of the nip in the sheet feeding direction. A distance between the engaging position and a downstream end of the pad is 0-35% of a length of the pad measured along the feeding direction.

Abstract: A fixing unit fixes the toner image on a sheet by causing the sheet carrying a toner image to pass through a nip portion formed by bringing a rotary fixing member and a rotary pressing member into pressure contact with each other. The image forming apparatus includes an image forming apparatus main body having a fixing unit accommodating portion for accommodating the fixing unit in an insertable and removable manner, and a heating unit provided in the image forming apparatus main body and heating a rotary fixing member of the fixing unit mounted on the fixing unit accommodating portion from outside in a radial direction. The direction in which the fixing unit is inserted into and removed from the fixing unit accommodating portion coincides with the axial direction of the rotary pressing member.

Abstract: A fixing device includes a fixing rotator that is endless and rotates in a rotation direction and a pressure rotator that contacts an outer circumferential surface of the fixing rotator to form a nip between the fixing rotator and the pressure rotator. A flange is disposed opposite each lateral end of the fixing rotator in an axial direction of the fixing rotator and contacts an inner circumferential surface of the fixing rotator. The flange includes a first portion disposed farthest from the nip and a second portion disposed in proximity to the nip. The flange is inclined to define a distance from the inner circumferential surface of the fixing rotator to the flange in a separation direction in which the flange separates from the inner circumferential surface of the fixing rotator. The distance increases from the first portion to the second portion.

Abstract: An external cooling device 101 is connectable to an image forming apparatus 100. The external cooling device 101 improves cooling power of a recording material S after toner image fixation. In this case, even when a heating amount of the fixing device 11 is increased, a temperature of the recording material S stacked on a stacking unit 60 can be lowered to not more than a predetermined temperature at which sticking does not occur. Further, the number of sheets stackable on said stacking unit 60 can be increased. By this, a user is capable of adjusting glossiness without concern for the sticking of the recording materials S on the stacking unit 60. Further, the user is not required to frequently carry out the recording material S of the stacking unit 60. That is, it is possible to provide an image forming system 1X capable of flexibly meeting the recording materials S of various kinds.

Abstract: An information processing apparatus includes a controller configured to, if it is determined that a connecting process of connecting a continuous sheet and another continuous sheet to each other is to be executed when a trailing end of the continuous sheet transported by a printing unit is detected, prohibit the continuous sheet from being transported in response to a user's operation at a time when the trailing end of the continuous sheet is detected.

Abstract: The heating apparatus including a plurality of heat generation members including first, second and third generation members, the second heat generation member and the third heat generation member having lengths in a longitudinal direction shorter than a length of the first heat generation member, the heating apparatus including first, second, third, and fourth contacts, and a first switching unit configured to bring an electric path between the second contact and the fourth contact into one of a connecting state and an open state.

Abstract: An image forming apparatus includes a housing, a unit including a drive member and being positioned to the housing, and a drive device configured to rotate the drive member in a normal direction and a reverse direction. The drive device includes a housing-side gear mounted on the housing, and a unit-side gear mounted on the unit, the unit-side gear being configured to mesh with the housing-side gear. The drive device transmits a driving force to the drive member, the driving force causes a force from the housing-side gear to the unit-side gear, the force includes a component force in a direction to detach the unit from the housing, and the component force is smaller than a static friction force between the unit and the housing.

Abstract: A presser presses a pressed object and includes a first rotation shaft and a pressurizing portion that is supported by the first rotation shaft and pivots about the first rotation shaft. A depressurizing portion is supported by a second rotation shaft and pivots about the second rotation shaft with respect to the pressurizing portion. The depressurizing portion includes an engagement. An interlock lever includes an opening that engages the engagement. The depressurizing portion pivots to switch between a pressurization state in which the engagement contacts and presses the opening to cause the pressurizing portion to press the pressed object and a depressurization state in which the pressurization state is released. The depressurizing portion pivots to define a gap between the engagement and the opening in a moving direction in which the engagement moves.

Abstract: An example bridge module includes a media transport roller to move in a translational direction, a rotatable guide proximate to the media transport roller, a handle coupled to the rotatable guide to cause the rotatable guide to articulate into an open configuration and away from the media transport roller, and an elongated member operatively connected to the rotatable guide, the elongated member to articulate into the open configuration creating an unobstructed pathway to the media transport roller.

Abstract: A fixing apparatus includes a first rotary member, a second rotary member configured to form a nip portion with the first rotary member, a frame including a pair of side plates, a pressing member, an urging member configured to urge the pressing member, a second shaft supported by the pair of side plates. Each of the pair of side plates includes an opening portion into which the second shaft enters, and a bearing groove which communicates with the opening portion. The bearing groove includes a receiving portion which receives an urging force which the second shaft receives from the urging member in a state where the second shaft is supported by the pair of side plates. The receiving portion is disposed at a position which is farther apart from the pressing member than the opening portion.

Abstract: A pressing device includes a cam member 120, a bearing 120a, a cam portion 120b, a cam engaging portion 120c of snap fit fashion. The bearing 102a is rotatably supported by a fixation frame 115. The cam portion 120b is provided on one side of the bearing 120a and contacts a pressing lever. The cam engaging portion 120c is provided on the other side of the bearing 120a and engages with a hole 123a formed on an outer surface of a cam shaft 123. The cam engaging portion 120c engages with the hole 123a at a position away from a maximum load portion of the cam portion 120b by not less than 90 degrees phase different.

Abstract: A fixing device includes a first rotator having an endless form, a second rotator, a heater arranged in at least one of the first rotator and the second rotator, a guide facing an end of the first rotator, and a nip formation pad that is in contact with the second rotator via the first rotator to form a nip between the second rotator and the nip formation pad. The second rotator is configured to move between a pressing position at which the second rotator presses the first rotator and a non-pressing position at which the second rotator does not press the first rotator. The nip formation pad is configured to separate from the guide when the second rotator is at the pressing position.

Abstract: A fixing device includes a body and a cover. The body includes a roller and a positioning projection projecting from the body. The cover is supported on one end side in an axial direction of the roller and has a slot in which the positioning projection is inserted. The cover is configured to pivot on the positioning projection inserted in the slot, from a closed position to a retreated position from the body.

Abstract: A driver includes a first rotator, a second rotator, a bearing, a housing, a drive gear, a first idler gear, a pivot member, and a second idler gear. The first idler gear is meshed with the drive gear. The pivot member rotates around a rotation center axis in the housing and includes an idler gear support portion rotatably holding the first idler gear. The second idler gear is meshed with the first idler gear and disposed on the rotation center axis of the pivot member. A rotation center of the pivot member is present in a region outside a circle having a diameter of 1.5×L and inside a circle having a diameter of 1.8×L around a rotation center of the first idler gear, when a distance between a rotation center of the first rotator and the rotation center of the first idler gear is L.

Abstract: A fixing device includes a pressure roller including a rotation shaft, a bearing that rotatably supports the rotation shaft, a first bracket mounted on a first end of the pressure roller in an axial direction thereof, and a second bracket mounted on a second end of the pressure roller in the axial direction thereof. Each of the first bracket and the second bracket includes a rotation shaft support face through which the rotation shaft of the pressure roller is inserted and a bearing support face disposed opposite an outer circumferential surface of the bearing. A first tab is mounted on the bearing support face of the first bracket. A second tab is mounted on the bearing support face of the second bracket. The first tab and the second tab are disposed upstream from the rotation shaft of the pressure roller in a recording medium conveyance direction.

Abstract: A fixing device includes a first rotation section and a second rotation section. The first rotation section includes a first rotating member and a first belt. The first rotating member is rotatable about a first rotational axis. The first belt is caused to rotate by rotation of the first rotating member. The second rotation section includes a second rotating member. The second rotation section is opposed to the first rotation section in a first direction and allows a medium to be sandwiched between the first rotation section and the second rotation section. The second rotating member is rotatable about a second rotational axis. The second rotation section is disposed allowing an angle of the second rotational axis with respect to the first rotational axis viewed from the first direction to be variable.

Abstract: A process unit has an image carrying unit having an image carrying member configured to be rotatable about a first axis extending in a first direction, and a developing agent removing member, a developing unit having a developing agent carrying member configured to be rotatable about a second axis parallel to the first axis, and a waste developing agent collecting unit configured to collect the developing agent removed by the removing member from the image carrying member. The waste developing agent collecting unit is arranged on one side in the first direction with respect to the developing unit such that the waste developing agent collecting unit faces the developing unit, and the developing unit is connected to the waste developing agent collecting unit such that the developing unit being movable in a second direction which is perpendicular to the first direction with respect to the waste developing agent collecting unit.

Abstract: A drive transmission device includes a first gear, a cam configured to rotate in interrelation with rotation of the first gear and capable of changing a state of two members between a pressed state and a pressure-released state, a pressing member configured to press the cam, and a second gear configured to transmit drive to the first gear in engagement with the first gear. At least one of the first and second gears includes first teeth provided at positions corresponding to an engaging region in which the first gear is engaged with the second gear when the state of the two members is changed from the pressure-released state to the pressed state and includes second teeth provided at positions corresponding to a region other than the engaging region. Tooth thicknesses of the first teeth are thicker than tooth thicknesses of the second teeth.

Abstract: An image forming apparatus includes an image holding body, a transfer member, and a controller. The image holding body holds an image formed of toner. The transfer member is brought into contact with a continuous medium so as to transfer the image held by the image holding body to the continuous medium, and the transfer member is able to be brought into contact with and separated from the image holding body. The controller causes the transfer member to be separated from the image holding body, and after that, causes the image holding body to move so as to detect an inspection image formed on the image holding body, thereby adjusting, as image quality adjustment, a deviation of a position of the image or a deviation of density of the image to be formed.

Abstract: A fixing device includes a fixing rotator, a heat source, a pressing member, a nip formation member, a reflector, and a support. The heat source is configured to heat the fixing rotator. The pressing member is configured to form a nip with the fixing rotator. The nip formation member is disposed inside a loop of the fixing rotator and opposed to the pressing member to form the nip between the fixing rotator and the pressing member. The reflector is configured to reflect heat from the heat source. The support is configured to secure the reflector. The support is in contact with the reflector at at least one end portion in a longitudinal direction of the support.

Abstract: A second unit configured to be opened or closed with respect to a first unit includes a background plate configured to be switched between a facing state in which the background plate faces a image sensor and a non-facing state in which the facing state of the background plate and the image sensor is released and a power receiving section configured to receive power from a motor to switch the state of the background plate. The first unit includes an intermediate cam configured to be rotated by the power from a motor and a cam member configured to receive the power of the motor via the intermediate cam, the cam member having a receiving section of a size the power receiving section is received regardless of a position of the power receiving section when the intermediate cam is in the neutral position.

Abstract: There is provided a guide incorporated in a fixing device including a belt configured to circularly move in a moving direction. The guide includes: a guide portion elongated in a longitudinal direction orthogonal to the moving direction; a first gate mark; and a second gate mark arranged spaced apart from the first gate mark in the longitudinal direction. The guide portion includes a resin and a plurality of elongated-shaped fillers dispersed in the resin. The guide portion has a guide surface configured to guide movement of the belt in the moving direction, a peripheral surface of the belt being configured to contact the guide surface.

Abstract: A temperature measuring device for measuring temperatures of a plurality of heating elements, includes a temperature measuring element positioned to receive infrared rays emitted from each of the heating elements and to output a signal corresponding to an intensity of the light reception, and a light guiding unit including a plurality of light guides, one for each of the heating elements, each light guide being configured to guide the infrared ray emitted from a respective one of the heating elements to the temperature measuring element.

Abstract: An image forming apparatus includes a replacement unit (developing unit) that is provided to be freely inserted into and extracted from an apparatus body, and the replacement unit is provided with a separation duct wall that constitutes a collection path through which powder scattering in the apparatus body is collected.

Abstract: A fixing device includes a fixing belt and a pressure rotator that presses against a nip formation pad via the fixing belt to form a fixing nip between the pressure rotator and the fixing belt. A first holder holds a first lateral end of the fixing belt in an axial direction thereof. A second holder holds a second lateral end of the fixing belt in the axial direction thereof. The second holder, together with the first holder, defines a holder interval provided between the first holder and the second holder in the axial direction of the fixing belt. A lubricant supplying sheet impregnated with a lubricant is sandwiched between the nip formation pad and the fixing belt at the fixing nip. The lubricant supplying sheet has a sheet span in the axial direction of the fixing belt. The sheet span is within the holder interval.

Abstract: A thermal transfer apparatus is disclosed. The thermal transfer apparatus has a heating roller movable between a film contact position and a retracted position. The thermal transfer apparatus also includes a nip roller positioned opposed to the heating roller when the heating roller is in the film contact position. The heating roller is moved from the film contact position to the retracted position in response to opening of the cover and is not moved from the retracted position to the film contact position during closing of the cover.

Abstract: An image formation apparatus according to an embodiment may include: an apparatus housing including a stacker formed on a periphery of the apparatus housing, wherein the stacker includes an opening; an image formation part provided in the apparatus housing and configured to form an image on a medium; and a fixation unit detachably attached in the apparatus housing and configured to fix the image formed by the image formation part on the medium, wherein in a state where the fixation unit is attached in the apparatus housing, a part of the fixation unit is exposed through the opening of the stacker to constitute a part of the stacker such that the opening of the stacker allows the fixation unit to be taken out from the apparatus housing therethrough.

Abstract: In accordance with an embodiment, an image forming apparatus encompasses a heat roller, a lamp, a use amount acquisition section, a switching controller and a cycle controller. The heat roller heats a sheet printed with a toner image. The lamp heats the heat roller. The use amount acquisition section acquires a use amount of the lamp. The switching controller repeats a processing from a moment at which the lamp is charged until the lamp is charged next after the lamp is not charged in a predetermined control cycle. The cycle controller sets the cycle based on the use amount.

Abstract: A fixing device includes a heating member, a pressing member, a pressing mechanism and a locking mechanism. The heating member is rotatable. The pressing roller is configured to come into contact with the heating member. The pressing mechanism is configured to convert a rotational force transmitted from a drive source to a pressing force of pressing the pressing roller against the heating member and to form a pressing region between the pressing roller and the heating member. A sheet is conveyed through the pressing region. The locking mechanism is configured to be engaged with an image forming apparatus main body linked with a pressing operation of applying the pressing force to the pressing roller and to be disengaged from the image forming apparatus main body linked with completion of a pressing release operation of removing the pressing force.

Abstract: An image forming device includes a development unit that forms a toner image, a fixation unit that includes a handle including a grip part and fixes the toner image transferred to a record medium on the record medium and a heat insulation duct that is situated between the development unit and the fixation unit and inhibits transmission of heat of the fixation unit to the development unit. The handle is provided to be able to shift between an operational position for being gripped by an operator and an operating position at which the handle is in contact with the heat insulation duct.