Abstract: A fan introduces air and send the air toward an air blow target. The fan includes an impeller and a casing. The casing includes a first wall covering the impeller, a second wall covering the impeller and facing the first wall, and a peripheral wall surrounding the impeller and connecting the first and second walls. The peripheral wall has an air discharge port for discharging air toward the air blow target. The impeller is located between the first wall and the second wall. The second wall is located closer to a side cover than the first wall is. At least the first wall or the second wall has an air inlet port for introducing air into the casing. The outside air inlet is located at a different position from the air inlet port as viewed from a facing direction in which the fan and the side cover face each other.

Abstract: An image forming apparatus includes an image forming portion, a transfer belt, a secondary transfer portion, a cleaning member contacting a surface of the transfer belt for cleaning the surface of the transfer belt, a fixing device, an exhausting device, a duct portion and a sheet member. The sheet member is provided on the exhausting device so as to project toward the transfer belt from the exhausting device, the sheet member being opposed to transfer belt and separated by a predetermined space downstream of the transfer portion and upstream of the cleaning member with respect to a rotational direction of the transfer belt, and being configured to prevent air flow between the exhausting device and the transfer belt from flowing downstream with respect to the rotational direction.

Abstract: An image reading apparatus connected to a conveying apparatus to convey a recording medium to which a toner image is fixed includes a conveying unit and a reading unit having a transparent member, a reading sensor, a housing supporting, and a fan. The conveying unit receives the recording medium discharged from the conveying apparatus and conveys the recording medium. The reading unit is positioned downstream of the conveying unit in a conveying direction of the recording medium. The reading sensor read a housing supporting image information about an image on the recording medium through the transparent member. The housing supports the reading sensor and defines, together with the transparent member, an accommodation space configured to accommodate the reading sensor. The fan is positioned in the accommodation space and circulates air in the accommodation space.

Abstract: A fixing belt heats and fixes a toner image. A pressure roller rotates the fixing belt while in contact with the fixing belt. A heater heats the fixing belt. A lubricating oil forms an oil film between the heater and an inner peripheral surface of the fixing belt. A pressure roller driver rotates the pressure roller so that the lubricating oil causes the fixing belt to be out of contact with the heater.

Abstract: According to one embodiment, an image processing apparatus includes an apparatus main body, a first rotating body, a second rotating body, and a connection member. The first rotating body is configured to be openable and closeable and provided in the apparatus main body. The second rotating body is provided in the first rotating body. The second rotating body is configured to be openable and closable from the first rotating body in the same direction as that of the first rotating body. The connection member is linear. The connection member is configured to connect the apparatus main body and the second rotating body to each other and to restrict a rotation angle of the second rotating body.

Abstract: An image forming apparatus includes a heating device including a heater, a developing device, and an airflow generation device. The heater includes a base, a heat generator, an electrode portion, and conductive portions. The conductive portions are disposed on one side and another side in a longitudinal direction in a heat generation region and spaced apart in a lateral direction intersecting the longitudinal direction. A maximum total value among total values of squares of current flowing in the conductive portions at longitudinal positions on the one side is larger than that on said another side. The developing device includes a rotating member and sliding portions. A sliding portion having highest temperature in operation is disposed on one side of the developing device being same as the one side of the heater in the longitudinal direction. The airflow generation device generates an airflow toward the one side of the developing device.

Abstract: A sheet conveying device includes a first duct, a second duct, and a switching member. The first duct is disposed at a first side of a sheet conveyance passage to face a first face of a sheet passing the sheet conveyance passage and has a first air blowing port through which air is blown toward the sheet conveyance passage. The second duct is disposed at a second side of the sheet conveyance passage to face a second face of the sheet passing the sheet conveyance passage and has a second air blowing port through which air is blown toward the sheet conveyance passage. The switching member is disposed downstream from the first and second air blowing ports in a sheet conveyance direction and configured to switch the sheet conveyance passage. No pair of rollers is disposed between the switching member and each of the first and second blowing ports.

Abstract: An image forming apparatus includes: a duct that recovers scattered toner and ozone generated in an image former, wherein the duct is partitioned into two parts, one of the partitioned parts is a scattered toner recovery path that recovers the scattered toner, and the other of the partitioned parts is an ozone recovery path that recovers the ozone.

Abstract: A heating device includes a housing, a heating member, a pressure member, a pair of openings, and a thermal insulator. The heating member and the pressure member extend along a longitudinal direction and press each other to form a nip portion in the housing. The heating member transfers heat to a recording medium passing through the nip portion. The pair of openings is disposed in the housing and opens facing both end portions in the longitudinal direction of the heating member so that air passes through the pair of openings. The thermal insulator is disposed inside the housing between the pair of openings and faces an outer peripheral surface of the heating member.

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: An image reading apparatus includes: a housing including a processing unit configured to process image information; an opening and closing member openably and closably provided on the housing, the opening and closing member including a reading unit configured to read an image from an image holding medium and configured to obtain image information from the image; a connection member that electrically connects the reading unit and the processing unit; and a protective member including a first protective member rotatably supported by the opening and closing member and a second protective member rotatably supported by the housing and rotatably connected to the first protective member, wherein rotation axial directions of the first protective member and the second protective member are the same direction as a rotation axial direction of the opening and closing member, and the connection member is accommodated in the protective member and protected by the protective member.

Abstract: An image forming apparatus includes an image bearing member, a developing apparatus, a driving device, an airflow space portion, a duct, and, a drawing fan. A driving-force transmission member, the driving device and the airflow space portion are disposed on a side on which a developer container faces the image bearing member. The driving-force transmission member, the driving device, the duct and the drawing fan are disposed on one end side of a developing rotary member in a rotation-axis direction of the developing rotary member. The duct is disposed underneath the developer container, formed from the side on which the developer container faces the image bearing member to a side opposite to the side on which the developer container faces the image bearing member. The drawing fan is disposed on the side opposite to the side on which the developer container faces the image bearing member.

Abstract: An image forming apparatus prints an image on a sheet. The image forming apparatus includes a casing, a plurality of open/close devices, a plurality of fans, and a control device. The casing includes a plurality of openings and a plurality of ventilation holes. The plurality of open/close devices are attached to the casing, and configured to open and close the respectively corresponding openings. The plurality of fans each generate an airflow from inside of the casing to a corresponding one of the plurality of ventilation holes. The control device controls operation of the plurality of fans. The control device also detects occurrence of an event that restricts execution of the printing, identifies a type of the event, selects at least one of the plurality of fans according to the type of the event, and drives the selected fan.

Abstract: An image forming apparatus configured to perform simplex printing and duplex printing includes a recording medium ejection device, a suction duct, a blower, and a pair of rotating members. The recording medium ejection device includes a recording medium outlet through which a recording medium is ejected outside of the image forming apparatus and a recording medium reverse port through which a part of the recording medium is ejected to reverse the recording medium in the duplex printing. The suction duct includes a suction port to suck air. The blower is disposed in the suction duct and sucks air from the recording medium ejection device to the suction port. The pair of rotating members is disposed between the suction port and at least one of the recording medium outlet and the recording medium reverse port and reverses both sides of the recording medium in the duplex printing.

Abstract: An image formation air blowing device includes an outlet and an airflow control portion. The outlet blows out an airflow toward a target space on a discharge table to which a sheet with an image formed thereon by an image forming portion is discharged. The airflow control portion controls a direction of the airflow at least in a horizontal plane in the target space.

Abstract: An imaging system includes: a housing including a developing chamber, a developing roller located in the developing chamber to transport a developer and spaced apart from the housing; a conveyance path extending along at least part of a periphery of the developing roller in order to form a flow of air including the developer; and a control member. The developing roller includes a peeling pole at a fixed position with respect to the housing, to discharge the developer. The control member is located along the conveyance path in proximity to the peeling pole of the developing roller, to reduce a flow rate of the air flowing through the conveyance path.

Abstract: An image forming apparatus includes a guide member including a guide surface that guides a sheet to a delivery rotating body, an opposing member opposed to the other face of the sheet, on an opposite side of the guide surface of the guide member, and defining an air passage between the opposing member and the guide member, such that one end portion is located on a side of the outer space, and the other end portion, on an opposite side of the outer space, communicates with a predesignated space on a side of the fixing device in an apparatus main body, and a dam member located downstream of the delivery rotating body in a sheet transport direction, and configured to dam air to be discharged with the sheet by the delivery rotating body, thereby guiding the air to the one end portion of the air passage.

Abstract: A sheet heating device includes: a heat roller including a lamp heater; a fixing frame supporting end parts of the heat roller and the lamp heater; and a heat-insulating cover member provided outside of the fixing frame. The fixing frame is disposed so as to cover the space above the heat roller. A plurality of heat retention spaces is provided inside of the cover member so as to be partitioned from one another and to be opened toward the fixing frame.

Abstract: An example image forming apparatus includes an image forming unit to form a toner image on a print medium, a fusing unit to fix the toner image to the print medium, a duct comprising an air inlet located adjacent to an exit of the fusing unit and an air discharge outlet located toward a discharge outlet through which the print medium is discharged, and a blower provided in the duct to discharge air to the air discharge outlet.

Abstract: A fixing device includes a first feeder provided downstream of a fixing portion heating a toner image formed on a first side of a sheet in a feeding direction, a second feeder provided adjacent downstream of the first feeder, and a guide contacting with a second side of the sheet fed by the first feeder and guiding toward the second feeder, a blower, a first duct guiding the air at a first position between the first and feeders, and a second duct at a second position between the first position and the first feeder. The first and second feeders are contactable to the sheet over an entire width. The air from the blower passes through the first duct, is sent to a feeding passage formed between the first and second feeders from the first position, and sent to the second side, then, the air passes through the second duct from the feeding passage via the second position and is exhausted.

Abstract: An imaging device has a fuser assembly and a removably insertable cartridge with an activation device. The fuser assembly has a fusing nip that heats during use. A shutter moves between a fully opened and fully closed position to allow or block access to the fusing nip. A frame has an opening to allow passage of the activation device of the cartridge. During use, the shutter blocks access to the fusing nip until the activation device of the cartridge passes through the opening of the frame and contacts a corresponding activation surface, whereby the shutter begins opening and travels through a range of movement until reaching the fully opened position when the cartridge is fully inserted into the imaging device. Removal of the cartridge reverses the action of the shutter.

Abstract: An image forming apparatus includes a flow passage associated with a direction of flow and a particle collecting device including a filter to collect particles in a fluid passing through the flow passage in the direction of flow. The flow passage includes a curved portion, and a distribution in particle collecting performance of the filter in a direction perpendicular to the direction of flow results from the curved portion of the flow passage.

Abstract: A cooling device for cooling a recording material on which a toner image is fixed includes: a rotatable feeding belt configured to feed the recording material by rotation; a rotatable member configured to nip and feed the recording material in cooperation with the feeding belt; and a heat sink contacting an inner peripheral surface of the feeding belt. The feeding belt contains a fluorine-containing resin additive.

Abstract: When a process cartridge is mounted, air introduced to inside an image forming apparatus via an intake unit flows in a space surrounded by a housing of the process cartridge, a contact unit, and an arm unit, and is exhausted via an exhaust unit. When another process cartridge having a housing larger in size than a housing of the process cartridge is mounted, the air introduced to inside the image forming apparatus via the intake unit flows in a space surrounded by the housing of the another process cartridge having the larger housing, a contact unit, and the arm unit, and is exhausted via the exhaust unit.

Abstract: A transportation device includes a cover member that is displaceable between a closing position for closing an opening of a body case and an opening position for opening the opening, a processing unit that is arranged inside the body case, and performs a specified processing with respect to a medium transported to a working area communicating with the outside of the body case through the opening when the cover member is positioned at the opening position, and a transmitted unit that is positioned at a first position different from a position between the working area and the processing unit when the cover member is positioned at the closing position, and is positioned at a second position which is the position between the working area and the processing unit when the cover member is positioned at the opening position.

Abstract: A heating device includes a heater, a housing, an airflow path, and an outer airflow path. The airflow path is configured to flow air from an airflow generator into the housing. The outer airflow path is configured to flow air from the airflow generator to an outer face of the housing.

Abstract: A developing device includes a developer roller to rotate in a rotation direction, a photosensitive body adjacent the developer roller, and an air flow passage extending through a non-image forming region at a longitudinal end of the developer roller. A closest position is defined where the developer roller and a photosensitive body are closest to one another. The air flow passage extends from inside the developing device and forms an air flow directed toward an upstream side of the closest position, relative to the rotation direction of the developer roller.

Abstract: An image reading apparatus includes a first image reading unit, a second image reading unit provided on a side opposite from the first image reading unit with respect to a sheet feeding passage, a first guiding member, a second guiding member, a first unit holding the first image reading unit and the second guiding member, and a second unit holding the second image reading unit and the first guiding member. One of the first unit and the second unit is movable relative to the other unit so as to open the sheet feeding passage.

Abstract: An image forming apparatus for forming a toner image on a recording material includes a fixing unit and a blower unit to blow air around a roller. The fixing unit includes a tubular shape film, a heating member disposed in a space surrounded by the film, and the roller forming a nip portion with the heating member. The fixing unit heats and fixes the toner image onto the recording material at the nip portion. For printing that forms toner images on continuously conveyed recording materials where a roller surface temperature is lower than a predetermined temperature, fan stop and operation periods are set. During the fan stop period, the blower unit is stopped and an interval between preceding and subsequent recording materials is widened. During the fan operation period, the blower unit is in operation and the interval is narrower than the interval during the fan stop period.

Abstract: An image forming apparatus, including: an apparatus main body; an openable and closable member provided on the apparatus main body; an image reading portion configured to read an image of an original, the image reading portion being supported on the apparatus main body and being movable to a first position and to a second position; and a stopper member configured to move in conjunction with a movement of the image reading portion, wherein when the image reading portion is moved to the first position, the stopper member is moved to a restricting position for restricting the openable and closable member from moving from a closed position to an open position, and wherein when the image reading portion is moved to the second position, the stopper member is moved to an allowing position for allowing the openable and closable member to move from the closed position to the open position.

Abstract: A filter unit (300) includes: a chassis (303) that has a suction portion (301) provided at a front side thereof, has an exhaust portion (302) provided at a rear side thereof, and is provided internally with an upstream filter (331); a plurality of upstream first ribs (323) disposed parallel to sidewalls of the chassis (303) to rise from a bottom surface (322) of the chassis (303) and forming an upstream first airflow path (P11); a plurality of upstream second ribs (313) disposed parallel to the sidewalls of the chassis (303) to rise from a ceiling surface (312) of the chassis (303) and forming an upstream second airflow path (P21); an upstream first shield plate (315) raised from the ceiling surface (312) to cover up a front of the upstream filter (331) while forming an upstream first gap (S11) with the bottom surface (322); and an upstream second shield plate (325) raised from the bottom surface (322) to cover up a rear of the upstream filter (331) while forming an upstream second gap (S21) with the ceiling

Abstract: An image forming apparatus includes an image forming device, a sheet feeder, and a housing. The image forming device forms an image on a recording medium. The sheet feeder stores the recording medium and conveys the recording medium toward the image forming device. The housing accommodates an electrical device in the housing. The housing includes a housing body and a drawer that is drawn out from the housing body. The drawer includes a bottom plate on which the electrical device is placeable and a partition above the bottom plate on which the electrical device is placeable.

Abstract: A cartridge includes a drum unit and a development unit. The drum unit includes a photosensitive drum, a frame, a transfer roller, and a cleaning member. The development unit includes a development roller, and a memory. The cleaning member is configured to come into contact with the photosensitive drum at a region between a development nip portion and a transfer nip portion in a circumferential direction of the photosensitive drum and at an end portion of the photosensitive drum in a direction of the rotational axis. The frame has an exposing hole through which the memory is exposed from the frame, and a recessed portion that is adjacent to the exposing hole in the direction of the rotational axis, and stores foreign matters removed from the photosensitive drum by the cleaning member.

Abstract: An image forming apparatus includes a casing in which multiple units are disposed. The casing has a front wall having a first opening and a stepped wall having a second opening. In the casing, an exposure unit is disposed in front of an image forming unit, above the first opening, and above a sheet loading section, and a fixing unit is disposed above the image forming unit. The exposure unit is disposed with a first gap between the exposure unit and the image forming unit, and the fixing unit is disposed with a second gap between the exposure unit and the image forming unit. The first gap and the second gap constitute a ventilation channel for distributing outside air flowing into the casing through the first opening to the second opening.

Abstract: An image forming apparatus includes a cooler and a heater. The heater includes a heat generation unit, which includes resistive heat generators arranged in a longitudinal direction of the heater, a first electrode, a second electrode, a first conductor that connects the resistive heat generators in parallel with each other to the first electrode, and a second conductor that connects the resistive heat generators in parallel with each other to the second electrode. The first and second conductors are connected to at least one of the resistive heat generators on a first longitudinal end side of the heater from a center of the resistive heat generator in the longitudinal direction of the heater. A cooling ability of the cooler to a second longitudinal end side of the heater opposite the first longitudinal end side of the heater is greater than that to the first longitudinal end side of the heater.

Abstract: According to one embodiment, the developing device includes a developing case containing toner, a mixer configured to diffuse the toner in the developing case, and a developing roller configured to develop a latent image formed on an image carrier. The developing case includes a circulation path through which air containing the toner flows. The developing roller is partially exposed from the developing case. The developing roller includes a sleeve rotating along with the movement of the image carrier and a plurality of magnetic pole portions disposed inside the sleeve. The developing roller holds the toner on the sleeve and supplies the toner to the image carrier to develop the latent image. The developing device further includes a magnet disposed apart from the developing roller. The magnet faces one of the magnetic pole portions across the sleeve.

Abstract: An image forming apparatus includes a cooler and a heater, which includes a heat generation part including resistive heat generators, a first electrode, a second electrode, a first conductor, a second conductor, and a branch channel. The first conductor connects the resistive heat generators and the first electrode. The second conductor extends from the resistive heat generators to a side in a first longitudinal direction of the heater to be connected to the second electrode. The branch channel branches from the second conductor and extends to a side in a second longitudinal direction opposite the first longitudinal direction to be connected to either the second conductor or the second electrode without passing through the first conductor. A cooling ability of the cooler to an end side of the heater in the second longitudinal direction is greater than that to an end side of the heater in the first longitudinal direction.

Abstract: An image forming apparatus includes a photosensitive member, an intermediary transfer member, a transfer portion, a cleaning portion, and an air blowing portion. The air blowing portion blows the air toward an outer peripheral surface of the intermediary transfer member in a moving direction of the intermediary transfer member away from the transfer portion, at a position between the transfer portion and the cleaning portion with respect to a movement direction of the intermediary transfer member.

Abstract: An image forming apparatus includes a first frame member, a second frame member opposing the first frame member, a cartridge, a cartridge holding member, an air blowing portion, a first opening, a second opening opposing the first opening, an air discharge passage member, and an outer casing member provided so as to cover an outside of the second frame member and permitting discharge of the air to an outside of the image forming apparatus through the air discharge passage member.

Abstract: An image forming apparatus includes an apparatus body and an exhaust unit. The exhaust unit includes a first duct and a separating member. The first duct includes a first duct A forming member and a first duct B forming member provided with a plurality of communication ports which form one side surface of a second sheet transport path through which a sheet after heating and fixing is transported, a first exhaust fan for discharging air of the first duct to an outside of the apparatus body, and a filter disposed on a downstream side from the second sheet transport path. The first duct separates the second sheet transport path from spaces other than the first duct in the apparatus body. Further, the separating member separates the second sheet transport path from spaces other than the first duct in the image forming apparatus.

Abstract: An image forming apparatus includes a fixing portion, a first guiding portion, a second guiding portion, a first rotatable member pair provided between the first and second guiding portions, an air discharging portion for discharging air from a feeding passage of the first guiding portion to an outside of a main assembly of the image forming apparatus, and a second rotatable member pair provided downstream of the second guiding portion.

Abstract: An image forming apparatus includes an image forming portion to form, at a first position, a toner image on a recording material using toner having a parting material, a fixing portion to fix, at a second position, an unfixed toner image formed on the recording material by the image forming portion, and a heat exhausting duct having an inlet between the first and second positions with respect to a recording material feeding direction to discharge air heated by the fixing portion, with the heat exhausting duct being free of a filter at the inlet thereof. In addition, a collection duct has an inlet between the first position and the second position to collect particles resulting from the parting material. The collection duct is provided with a filter at the inlet thereof, and the inlet of the collection duct is integrally molded with the inlet of the heat exhausting duct.

Abstract: An image forming apparatus includes an image forming unit that forms an image when a working state of the image forming unit is an image forming state and does not form an image when the working state is a non-image forming state, an air blowing part that blows air toward the image forming unit, an air flow rate changing part that changes a flow rate of the air blown toward the image forming unit from the air blowing part, and a switching part that performs a switching to switch the working state of the image forming unit between the image forming state and a non-image forming state, wherein the air flow rate changing part changes the air flow rate of the air blowing part in mechanical correspondence with the switching between the image forming state and the non-image forming state of the image forming unit by the switching part.

Abstract: An image forming apparatus includes an image forming device; a fixing device; a first conveyance passage downstream from the fixing device in a sheet conveyance direction; a second conveyance passage downstream from the fixing device and communicating with the first conveyance passage; a sheet reversing member to reverse a conveyance direction of the sheet to the second conveyance passage; a divider to switch a route of the sheet between the first conveyance passage and the second conveyance passage; and a sheet detection sensor disposed downstream from the fixing device and upstream from the divider. The first conveyance passage includes a sheet outlet from which the sheet is ejected outside the apparatus. The apparatus further includes a ventilation passage communicating with an outside, to guide air from the outside to pass the sheet detection sensor and enter at least one of the first conveyance passage and the second conveyance passage.

Abstract: A fixing device fixes a toner image to a medium conveyed in a conveying direction, the toner image formed on the medium, the fixing device including a heating rotating body, a heater, a pressing member, a pressing rotating body, and a lubricant holding member. The heater heats the heating rotating body, which is supported to be rotatable. The pressing member is disposed inside the heating rotating body. The pressing rotating body is pressed against the pressing member through the heating rotating body to form a nip through which the medium passes. The lubricant holding member has an abutting surface that abuts against an inner circumferential surface of the heating rotating body, and the abutting surface includes a first region filled with a first lubricant and a second region filled with a second lubricant.

Abstract: A developing device includes a development roller, a housing, a suction device, and a discharging device. The development roller rotates to pass a developer to an image carrier. The housing includes an opening, which allows the development roller to face the image carrier therethrough, and a flow-in path, which is a gap formed to allow air to flow therethrough between the development roller and an edge of the opening downstream in a rotation direction of the development roller. The suction device has a suction path having a distal end serving as a suction port that is open to an outside of the housing, and sucks air through the suction port. The discharging device includes a through-hole, which extends through the housing to connect an inside to an outside of the housing, and a discharge path, which extends from the through-hole to the suction port. The discharge path merges with the suction path.

Abstract: A feeding screw for feeding a developer includes a rotation shaft, a first blade portion helically formed on an outer peripheral surface of the rotation shaft to feed the developer in one direction, a second blade portion helically formed on the outer peripheral surface to feed the developer in the one direction, and a third blade portion helically formed on the outer peripheral surface to feed the developer in the one direction. The first blade portion and the second blade portion overlap with each other with respect to a rotational axis direction of the feeding screw, the second blade portion and the third blade portion do not overlap with each other with respect to the rotational axis direction, and the third blade portion and the first blade portion overlap with each other with respect to the rotational axis direction.

Abstract: A cooling device includes a sheet conveying roller, and a duct. The sheet conveying roller is configured to convey a sheet in a sheet conveyance direction. The duct is configured to convey air to a sheet conveyance passage. The duct includes a first blowing port configured to blow air toward the sheet conveyance passage, and a second blowing port configured to blow air toward the sheet conveying roller.

Abstract: A developing device includes a latent image carrier to form an electrostatic latent image is formed on a surface of the latent image carrier, a developing agent carrier to carry a developing agent including toner on a surface of the developing agent carrier, the developing agent carrier facing the latent image carrier, and a roll-shaped member facing the developing agent carrier to form a first gap and facing the latent image carrier to form a second gap, to form a suction air flow through the first gap and the second gap, to suction toner particles scattered to the first gap between the roll-shaped member and the developing agent carrier and the second gap between the roll-shaped member and the latent image carrier.

Abstract: An image forming apparatus includes an image carrying member including a transfer belt or a photosensitive drum, a transfer unit configured to transfer a toner image carried on the image carrying member to a recording medium, a fixing unit disposed above the transfer unit and configured to heat and pressurize the toner image transferred to the recording medium and fix the toner image to the recording medium, a body stay having an opposing wall facing a side surface of the fixing unit, and a positioning part provided on the opposing wall and configured to perform positioning of the fixing unit. A chipped part is provided below the positioning part in the body stay and blocks transmission of heat transmitted from the fixing unit to the body stay via the positioning part.