Abstract: An image forming apparatus has an image forming unit to form a toner image on a first sheet and a fixing unit configured to heat the first sheet to fix the image to the first sheet. A control unit begins a cooling process for cooling the fixing unit when an overheating condition is met, then permits the image forming unit to form a toner image on a second sheet after the cooling process ends according to a first cooling condition if a person is detected near the image forming apparatus or after the cooling process ends according to a second cooling condition if a person not detected near the image forming apparatus. The cooling process under the first cooling condition ends in less time than under the second cooling condition.

Abstract: A developing device includes: a case in which a hollow transporting path is formed; a transporting member configured to transport a developer in the transporting path; a support portion fixed to an end portion of the case by a fastening member to support the transporting member at an end portion of the transporting path; and a cooling unit fixed by being sandwiched between the support portion and the case.

Abstract: An image forming apparatus includes a heater, first control circuitry, second control circuitry, and a detector. The heater is configured to heat an inside of the apparatus. The first control circuitry is configured to cause the apparatus to be in a standby state, a sleep state having smaller power consumption than the standby state, or a deep sleep state having smaller power consumption than the sleep state. The second control circuitry is configured to control an operation of the heater. The detector is configured to detect humidity of the inside of the apparatus. The first control circuitry causes the apparatus in the deep sleep state to periodically and temporarily return to the sleep state, and the second control circuitry operates the heater according to the humidity detected by the detector in the sleep state to which the apparatus has returned from the deep sleep state.

Abstract: A developing device includes a casing containing a housing chamber and having a developer outlet port to discharge excess developer from the housing chamber. A developer roll is disposed in the housing chamber, to carry a developer. The developing device includes an airflow passage to allow air to flow in from the housing chamber when the developer roll rotates. The developing device further includes a radiation member located adjacent the housing chamber to transfer heat to the air flowing through the airflow passage.

Abstract: An image forming apparatus includes a heat receiving part that absorbs heat from an object to be cooled, a heat radiating part that radiates the heat absorbed in the heat receiving part, a circulation pipe through which coolant is circulated; a storage tank that stores the coolant, and a pump that circulates the coolant between the heat receiving part and the heat radiating part through the circulation pipe. The pump is placed on an upper surface of the storage tank.

Abstract: According to an embodiment, an electronic device includes a heat source, a discharge path, a wall internal space, and a heat conductor. The discharge path is configured to guide a gas toward the outside of the device. The wall internal space is surrounded by walls, extends vertically, and is open to a space outside the device via an upper opening and a lower opening that are in different vertical positions. The heat conductor includes a heat absorber that is positioned in the discharge path and a heat dissipater that is positioned in the wall internal space.

Abstract: An image forming apparatus includes a developing system, a drum, and a processor. The developing system includes a developing sleeve that is rotatable in a forward direction and a reverse direction and rotates in the forward direction to cause a developer toner filled in a container to adhere to a surface, and a blade that removes a part of the developer toner adhered to the surface of the developing sleeve. The drum receives a toner contained in the developer on the surface of the developing sleeve, and forms a toner image on a transfer belt used to transfer the toner image to the printing medium. The processor recognizes a temperature of the developing system when an operation of the developing system is stopped, determines a reverse rotation amount of the developing sleeve based on the recognized temperature, and reversely rotates the developing sleeve based on the reverse rotation amount.

Abstract: An image forming apparatus includes a sheet feeding cassette configured to store a recording sheet, a conveyance unit configured to convey the recording sheet stored in the sheet feeding cassette, and an image forming unit configured to form an image on a photo sensitive member, and to transfer the image onto the recording sheet conveyed by the conveyance unit. A power supply unit is configured to convert an alternating current (AC) voltage of a commercial power supply into a direct current (DC) voltage, and is configured to supply the AC voltage and the DC voltage. A first heater heats the sheet feeding cassette, and generates heat with the AC voltage supplied by the commercial power supply, and a second heater heats the photosensitive member of the image forming unit, and generates heat with the DC voltage supplied by the power supply unit.

Abstract: An image forming apparatus executes an image formation process through which a developer image is formed on an image carrier by developing an electrostatic latent image while rotating a developer carrier in a forward direction, a voltage controller controls development and regulating voltages after the image formation process such that a magnitude relationship between the development regulating voltages becomes inverted from that during the image formation process, and after finishing the image formation process, in a state where the magnitude relationship between the development and regulating voltages is inverted from that during the image formation, the drive controller rotates the developer carrier in the forward direction for a prescribed period, and afterwards rotates the developer carrier in a reverse direction for another prescribed period.

Abstract: Embodiments of the present invention relate to control apparatus and methods of a printing system, for example, comprising an intermediate transfer member (ITM) and to user-related features of a printing system. Some embodiments relate to regulation of a velocity and/or tension and/or length of the ITM. Some embodiments relate to regulation of deposition of ink on the moving ITM. Some embodiments regulate to apparatus configured to alert a user of one or more events related to operation of the ITM. Some embodiments relate to a time-line GUI for visualizing and/or manipulating queued print jobs which may be employed. Some embodiments relate to a reversed augmented reality GUI for visualization and/or control of the printing system. In some embodiments, a display screen is mounted to a printer housing and/or able to control access to moving parts of a printing system.

Abstract: A recording-material cooling device includes a first cooling member, a second cooling member, an approach-and-separation member, and a positioning member. The first cooling member is disposed at a first face side of a recording material to absorb heat of the recording material. The second cooling member is disposed at a second face side of the recording material to absorb heat of the recording material. The approach-and-separation member brings the first cooling member and the second cooling member close to and away from each other. The positioning member positions the first cooling member and the second cooling member relatively brought close to each other by the approach-and-separation member.

Abstract: To provide an image forming apparatus in which the paper is cooled early by blowing air to the paper in the conveying path so as to prevent a sticking phenomenon on a paper output tray while paper turning, paper folding, paper breakage and paper jamming due to influence on paper conveyance by blowing air onto the paper in the conveying path, can be prevented. At the start of paper conveyance, a gate 73 is turned upwards to a first position to thereby close a sixth conveying path 44 and establish communication between a first conveying path 42 and a second conveying path 43 so that the paper having passed through a fixing unit 21 starts to be conveyed from first conveying path 42 to second conveying path 43. At the same time, air is exhausted from an exhausting mechanism 53 arranged upstream of a cooling mechanism 76.

Abstract: An image heating apparatus includes first and second rotatable members configured to form a nip for heating a toner on a sheet; a compressor; an air nozzle configured to blow air which is compressed by the compressor, to the first rotatable member; and a supplying mechanism configured to supply the air which is compressed by the compressor, to the air nozzle. The supplying mechanism includes a pressure adjusting valve configured to adjust an inside pressure and a metal pipe configured to form at least a part of an air supply passage from the compressor to the pressure adjusting valve.

Abstract: A fixing device includes a roller, a pressing member pressed against the roller, such that when a sheet having an unfixed image is passed thorough a nip formed between the roller and the pressing member, the unfixed image is fixed on the sheet, a first heater configured to heat the roller, a second heater configured to heat the pressing member, and a controller configured to control the second heater, such that a time-averaged heat generation by the second heater when an image of a decolorable material is fixed is greater than a time-averaged heat generation by the second heater when an image of a non-decolorable material is fixed.

Abstract: A fixing device includes a heating unit that heats an unfixed image on a recording medium, which is deformed by heating, and hence fixes the unfixed image; and a transport member that closely contacts a no-image surface of the recording medium and transports the recording medium while causing a close contact force to act on the recording medium against a deformation force, which is generated at the recording medium by the heating of the heating unit. The close contact force of the recording medium with respect to the transport member is larger than the deformation force generated at the recording medium.

Abstract: Disclosed is an image forming apparatus including: a printing paper transport path in which printing paper is transported; a secondary transfer unit and a fixing section both disposed on the printing paper transport path; an open/close cover that, when opened, exposes the printing paper transport path in a main body of the apparatus; a pressure roller, disposed in the fixing section, that presses the printing paper on a side thereof facing the open/close cover against the printing paper transport path; and cooling fans that cool down the pressure roller, wherein the secondary transfer unit and the cooling fans are attached to the open/close cover and disposed at such positions that the secondary transfer unit and the cooling fans move following overlapping paths when the open/close cover is opened/closed.

Abstract: There is disclosed an apparatus which may comprise a transfer member and a photoconductor. The apparatus may be operable to apply a potential difference between the transfer member and the photoconductor and the photoconductor may be operable to transfer a layer of electrostatic printing material from the photoconductor to the transfer member at a transfer region under the action of the applied potential difference. According to the present disclosure, the apparatus may further comprise a humidity raising device which may be operable to raise the relative humidity of the transfer region above an ambient level. A printer and a method of facilitating transfer of electrostatic printing material are also disclosed.

Abstract: An image forming apparatus has a compact size in height. The apparatus includes a main frame, a plurality of image forming components arrayed in the main frame in an array direction to form an image, a belt extending in the array direction and in contact with the plurality of image forming components, a first sheet accommodating portion configured to accommodate therein a recording sheet, and extending in the array direction and positioned below the belt, a collection member disposed in contact with the belt and configured to collect developing agent on the belt, and a container configured to hold the developing agent collected by the collection member. The container is positioned below the belt such that the container is juxtaposed with the first sheet accommodating portion in the array direction.

Abstract: A cooling device including a heat pipe to cool a sheet, a radiator provided to an end of the heat pipe, and a duct accommodating the radiator and having a closably openable cover member. The cover member is openable to enable attachment and detachment of the heat pipe to and from the cooling device in a predetermined direction.

Abstract: An image forming apparatus includes a developing unit to form a visible image on a printing medium using developer, a fixing device to fix the developer to the printing medium, and a heat plate placed between the developing unit and the fixing device such that heat generated from the fixing device is absorbed by the heat plate, and transmission of heat to the developing unit is restricted.

Abstract: An image forming apparatus has an image forming unit configured to form an image on a sheet using a decolorable toner, a fixing unit configured to fix the image on the sheet by heating, a cooling unit for cooling the fixing unit, and a control section for controlling the cooling unit. The control section turns on the cooling unit if the control section determines that the temperature of the fixing unit is at or above a predetermined temperature.

Abstract: An image forming apparatus comprising: a plurality of housing units that houses toners of mutually different colors, at least one toner inside of the plurality of housing units being to be used for forming a toner image on a recording medium; and a fixing unit configured to fix the toner image on the recording medium to the recording medium, wherein a housing unit among the plurality of housing units that houses a toner with a lowest peak temperature of loss elastic modulus is disposed in a portion with a lower temperature than a temperature of a portion where another housing unit is disposed, or in a position farther from the fixing unit than a portion where another housing unit is disposed.

Abstract: An image forming apparatus includes a toner containing portion, an air blowing portion, and an air blowing control portion. The toner containing portion contains toner that is used in image formation. The air blowing portion generates an airflow that contacts an outer side surface of the toner containing portion. The air blowing control portion narrows a vertical range of the airflow, which is generated by the air blowing portion and contacts the outer side surface of the toner containing portion, downward in a vertical direction in correspondence with reduction of toner amount in the toner containing portion.

Abstract: An image forming apparatus provided with a resin frame made of a resin, an image forming unit and a fixing unit includes a duct for allowing air to flow between the image forming unit and the fixing unit. The resin frame includes a main frame to which the image forming unit is attached, and a fixing unit attachment frame that is separate from the main frame and to which the fixing unit is attached, and the fixing unit attachment frame has a duct portion that constitutes at least one part of the duct.

Abstract: A color image forming apparatus includes a first temperature detection unit configured to detect a temperature of an exposure device, a second temperature detection unit configured to detect a temperature of a photosensitive member, a color registration pattern detection unit configured to detect a color registration pattern formed on a transfer member, an actual-measurement-based color registration adjustment value calculation unit configured to calculate an actual-measurement-based color registration adjustment value from a result of the detection of the color registration pattern detection unit, and a prediction-based color registration adjustment value calculation unit configured to calculate a prediction-based color registration adjustment value from the temperature of the exposure device detected by the first temperature detection unit and the temperature of the photosensitive member detected by the second temperature detection unit.

Abstract: An image forming apparatus includes a fixing unit, a housing having a sheet ejection opening, a plurality of sheet ejection rollers disposed in the sheet ejection opening and configured to eject the sheet fed from the fixing unit to the outside of the housing, a heat generating member spaced apart from the fixing unit and configured to generate heat, and a first guide member. The first guide member is disposed above the heat generating member, and configured to guide the sheet fed from the fixing unit to the ejection rollers. The first guide member includes a base portion having a plurality of outlet ports, and a plurality of ribs protruding upward from the base portion. The outlet ports are disposed between each pair of adjacent ones of the ribs and positioned closer to a downstream end of the first guide member than to an upstream end thereof.

Abstract: An image forming apparatus includes first and second image bearing drums; first and second developing devices for forming a toner image on the drums; an intermediary transfer member for carrying images transferred front the drums and secondary transferring the toner image onto a recording material; a heater for heating the recording material; an executing portion for executing a first mode for forming a toner image on the intermediary transfer member from both drums and a second mode for forming a toner image on the intermediary transfer member only from the second drum; a temperature detecting portion; a fan; a controller for controlling the fan based on a detected temperature; a setting portion for setting a temperature at which an air feed amount of the fan is increased in the second mode is lower than a temperature at which the all feed amount is increased in the first mode.

Abstract: In one example, a climate control system for a printer includes: an air flow path from an intake for receiving warmer, dirtier aft from a printing area of the printer to an exhaust for returning cooler, cleaner air to the printing area of the printer; a first heat exchanger in the flow path for exchanging heat between warmer air coming from the intake and cooler air going to the exhaust; and a second heat exchanger in the flow path for receiving warmer, dirtier air from the first heat exchanger and passing cooler, cleaner air to the first heat exchanger. The second heat exchanger is configured to cool the air to a predetermined dew point temperature corresponding to a desired level of a contaminant in the air.

Abstract: An image heating apparatus includes a first rotating member configured to heat a toner image on a sheet at a nip portion, a second rotating member configured to form the nip portion cooperatively with the first rotating member, a heat conduction member configured to conduct a heat of the second rotating member in a width direction of the second rotating member in an operating position in which the heat conduction member is in contact with the second rotating member, and a fan configured to blow an air toward a predetermined region of the heat conduction member which is in the operating position.

Abstract: A liquid type cooling device, which is incorporated in an image forming apparatus, includes a heat receiving part including a heat receiving unit to transport heat from a cooling target to a coolant and a heat releasing part including a heat releasing unit, a cooling fan, and an air flowing space. The heat releasing unit has a coolant flowing path and an air flowing path through which air passes and conducts heat exchange with the coolant. The air flowing space has an air inlet port and an air outlet port. When the air flowing path has an upstream region and a downstream region along a coolant flowing direction of the coolant flowing path, air at high temperature flows into the upstream region of the air flowing path. Alternatively, the heat releasing unit may have a coolant inlet port, a coolant outlet port, and the air flowing path.

Abstract: An image forming apparatus includes an air-conditioning section to control at least one of temperature and humidity of air, a first passage to guide the air sent off by the air-conditioning section to a temperature-controlled portion in the image forming apparatus, an air-intake section to take in the air from outside of the image forming apparatus, and a second passage to guide the air taken in by the air-intake section to the temperature-controlled portion.

Abstract: A fuser assembly for an electrophotographic imaging device which removes excess heat from overheated portions of the fuser assembly and includes a heating member; a backup roll disposed proximate to the heating member so as to form a fuser nip therewith; and a heat exchange roll in contact with the backup roll such that rotation of the backup roll rotates the heat exchange roll, the heat exchange roll having an air passage for moving cooling air from one end to an opposite end of the heat exchange roll so as to provide cooling to the fuser assembly.

Abstract: Disclosed is an image forming apparatus including: a printing paper transport path in which printing paper is transported; a secondary transfer unit and a fixing section both disposed on the printing paper transport path; an open/close cover that, when opened, exposes the printing paper transport path in a main body of the apparatus; a pressure roller, disposed in the fixing section, that presses the printing paper on a side thereof facing the open/close cover against the printing paper transport path; and cooling fans that cool down the pressure roller, wherein the secondary transfer unit and the cooling fans are attached to the open/close cover and disposed at such positions that the secondary transfer unit and the cooling fans move following overlapping paths when the open/close cover is opened/closed.

Abstract: A printing apparatus includes: a printing device configured to print an image on a sheet; a temperature detector configured to detect a temperature in the printing apparatus; and a controller. The controller executes: a first processing in which the controller changes a first indicator based on printing performed by the printing device; a second processing in which the controller changes the first indicator based on a first temperature detected by the temperature detector at a first point in time and a second temperature detected by the temperature detector at a second point in time; and a third processing in which the controller suppresses a rise in the temperature in the printing apparatus when the first indicator reaches a predetermined value.

Abstract: A sheet cooling device includes a fixing device for heat fixing an unfixed image formed on a sheet; and a cooling device for cooling the sheet heated by the fixing device, the cooling device including, a rotatable endless belt contactable with the sheet heated by the fixing device and traveling above the fixing device; and a cooling member for cooling the endless belt to condense water vapor produced by a fixing operation.

Abstract: An image forming apparatus includes a cooling device and a drawer. The cooling device includes two medium cooling members facing each other with a medium transport path therebetween, and a movable body moving the cooling members between a first position where they face each other and a second position where they are disposed away from each other. The drawer supports the transport path and the cooling device and is movable between a cooling-device accommodated position inside the apparatus and a cooling-device ejected position outside the apparatus. A transport-path length from an upstream end of the cooling device to a downstream end of the transport path in the movable body is longer than a length of a maximum-size medium. When the drawer and the movable body move to the accommodated position and the second position, respectively, the movable body is accommodated within a space within the apparatus.

Abstract: An image recording apparatus, comprising: a recording device; a cassette; a discharge tray; a conveying path; a conveyor; an electrical power supply; a cooling air flow path; an air blower to apply a wind-force to air; a casing; and an additional cassette device attached to a lower portion of the casing, and in this configuration, the additional cassette device comprises: an additional cassette and an additional conveying path. A relay path is provided between the additional conveying path and the conveying path. The electrical power supply and the cooling air flow path are arranged under the cassette. The electrical power supply is arranged to overlap with the cassette when viewed along the vertical direction, and the cooling air flow path is formed not to intersect with the relay path.

Abstract: An image forming apparatus includes a sheet feed unit which feeds a sheet to an image forming unit forming an image on the sheet, a re-transport roller which reverses the sheet with a toner image fixed on the sheet and re-transports the sheet to the image forming unit, and a control unit which controls a sheet feed operation of the sheet feed unit for feeding the sheet. As the temperature of the re-transport roller sensed by the temperature sensing unit is decreased, the control unit retards the timing at which the sheet feed unit starts the sheet feed operation when a duplex image formation in which the image is formed on both sides of the sheet is performed after a one-side image formation is completed.

Abstract: An image heating apparatus includes an endless belt for heating a toner image on a sheet in a nip, wherein an inner surface of the belt is coated with a lubricant; a driving roller cooperative with the belt to form the nip; an urging member provided inside the belt to urge the belt toward the roller; a first regulating portion for regulating a position of the belt, the first regulating portion being to be abutted to by one end edge of the belt; a first heat sink provided on the first regulating portion cool the first regulating portion; a second regulating portion for regulating a position of the belt, the second regulating portion being to be abutted to by the other end edge of the belt; and a second heat sink provided on the second regulating portion to cool the second regulating portion.

Abstract: A fixing device includes a rotatable pressure member; a heating member that is provided so as to oppose the pressure member, and that includes a heat source; a fixing member that fixes an image to a recording medium as a result of transporting the recording medium while the recording medium is nipped at a nip when the fixing member is pressed by the pressure member, the image being formed of toner including a separating agent; a cooling unit that cools the pressure member at a location that is situated downstream of the nip; a removing roller that, while being driven and rotated by the pressure member, removes the separating agent from the pressure member, the separating agent being transferred from the fixing member; and a removing member that contacts the removing roller and removes the separating agent adhered to the removing roller from the removing roller.

Abstract: An image forming apparatus includes an image forming unit configured to form a toner image on a recording material, a fixing unit configured to fix the toner image on the recording material by heat, a cooling air generating unit configured to generate a cooling air, and an air supplying unit configured to supply the cooling air toward the image forming unit. In addition, a primary water absorbing portion is configured to absorb water generated by the cooling air generating unit, and a secondary water absorbing portion is disposed at a position lower than the primary water absorbing portion in a gravitational direction and configured to absorb the water supplied through the primary water absorbing portion. An air blowing unit blows air warmed by the fixing unit toward the primary and secondary water absorbing portions to evaporate the water absorbed in the first and secondary water absorbing portions.

Abstract: An image forming apparatus includes: an image carrier configured to carry an electrostatic latent image thereon; a developing device to render the electrostatic latent image visible with a developer including toner and a carrier; a developer container to contain the developer collected from the developing device; a developer conveyance path through which the developer discharged from the developer container is conveyed to the developing device; a coolant conveyance path to convey a coolant; and a cooling device to cool the developer contained in the developer container when the coolant is contacted to an external surface of the developer container, in which the developer container and the coolant conveyance path are made of different materials and a thermal conductivity of the developer container is higher than that of the coolant conveyance path.

Abstract: An intake fan (62) is provided on a side surface of an exposure device (40) provided below a plurality of image formation portions (20) far from a fixing unit (30), and a ventilation path (70) is formed on a side surface of the exposure device (40) on a back side, and outside air sucked by the intake fan (62) into a body of an apparatus is fed through the ventilation path (70) to the back side of the image formation portion (20K) closest to the fixing unit (30). The air flows through a space between a division plate (80) and the image formation portions (20) toward a discharge fan (61), and the image formation portions (20) are air-cooled sequentially from the image formation portion (20K). Thus, it is possible to effectively air-cool the image formation portions without increasing the size of the apparatus.

Abstract: A cooling device includes a heat receiving unit arranged to contact with a cooling target to receive heat of the cooling target; a heat radiating unit configured to radiate heat of coolant; a tank configured to store therein the coolant; a circulating path configured to circulate the coolant through the heat receiving unit, the heat radiating unit, and the tank; a pump configured to transfer the coolant in the circulating path; and a liquid transfer detecting unit configured to detect liquid transfer of the coolant. The liquid transfer detecting unit includes a detector arranged above a liquid level of the coolant stored in the tank at a position where the coolant having flowed into the tank is hit when the coolant is transferred. The detector is arranged so as to be visible from the outside of the tank.

Abstract: An imaging unit of an imaging apparatus is provided including a developer unit for developing a toner and a cooling system. The cooling system includes an air distribution duct and a connecting segment. The connecting segment includes an air conduit attached to the air distribution duct and an air entry port disposed on the air conduit for connecting to the air supply line during installation of the imaging unit. A contacting surface of the air entry port is angled inwardly in two directions, relative to the air conduit, that are orthogonal to each other.

Abstract: A cooling device for an image forming apparatus includes a heat receiver disposed to contact a heated member; a heat releaser to release heat; a coolant circulation passage connecting the heat receiver and the heat releaser in which a coolant circulates between the heat receiver and the heat releaser; a pump configured to convey and circulate the coolant in the coolant circulation passage; a temperature sensor to detect a temperature of a part of the heated portion of the heated member at which a temperature rises; a cooling fan, included in the heat releaser, configured to change a thermal capacity released from the heat releaser based on the temperature detected by the temperature sensor; and a controller to determine presence or absence of a leakage of the liquid or a pump failure by monitoring a control performed by the cooling fan and the temperature detected by the temperature sensor.

Abstract: An acoustic cavity conditions the air flowing from a blower to reduce noise in the airflow. The air flowing directly out of the blower exhibits pulses produced by each impeller blade or fan blade. The airflow noise is thereby induced at certain frequencies. Printing operations inside a printer can also occur at specific frequencies. Introducing the airflow directly into certain areas of a printer can result in the noise frequencies and printing frequencies to combine and produce noticeable printing artifacts. An acoustic cavity tuned to dampen the airflow noise can condition the airflow and eradicate the printing artifacts.

Abstract: A device and method for determining and applying a transfer voltage in an imaging apparatus is provided. A servo voltage is determined based in part upon a change in an environmental condition. A determination is made whether or not to perform a new transfer servo operation based upon at least one of an amount of time passing since the last transfer servo operation was performed and a comparison of the determined servo voltage and a servo voltage used in a prior transfer servo operation. A transfer servo operation includes charging a photoconductive drum to a charge corresponding to a printing voltage.

Abstract: An image forming apparatus includes a plurality of image bearing members to bear a toner image on a surface thereof, a transfer device including a plurality of transfer members and an endless belt formed into a loop and entrained around the transfer members, to transfer the toner images from the image bearing members onto the surface of the belt so that the toner images are superimposed one atop the other on the belt to form a composite toner image, a plurality of cleaning devices including a cleaning blade to remove residual toner remaining on the image bearing members after transfer of the toner images onto the belt, and a plurality of heaters disposed inside the loop formed by the belt. Each of the heaters is disposed between adjacent image bearing members. The belt is interposed between the plurality of heaters and the plurality of image bearing members.

Abstract: An image forming apparatus for transferring and superimposing toner images formed on plural image bearers onto an endless intermediate transfer member in an electric field created between the plural image bearers and plural semi conductive transfer members internally contacting the endless intermediate transfer member. The image forming apparatus includes a heat generating member arranged inside the intermediate transfer member to generate heat. A heat transfer member is provided to transfer the heat to the plural semi conductive transfer members.