Abstract: A cooling device using a liquid coolant, including a heat receiving part separatably contactable to a target to be cooled detachably installable in an image forming apparatus, a heat releasing part to release heat from the liquid coolant, a circulation channel through which the liquid coolant is circulated between the heat receiving part and the heat releasing part, and a pump operatively connected to the circulation channel to convey the liquid coolant through the circulation channel. The circulation channel has a flexible part and a metal part continuous with the flexible part.

Abstract: A recording-material cooling device includes a first belt, a first cooling unit, and a second cooling unit. The first belt is disposed at a first face side of a recording material. The first cooling unit has a first heat absorbing surface to contact the first belt to absorb heat of the recording material. The second cooling unit has a second heat absorbing surface to directly or indirectly contact the recording material to absorb heat of the recording material. The second cooling unit is disposed at a second face side of the recording material. The first and second cooling units are offset from each other in a transport direction of the recording material. Each of the first and second surfaces has a shape in which an inner area protrudes beyond opposed ends in the transport direction. The first and second surfaces overlap each other in a direction crossing the transport direction.

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: An air-conditioning unit includes an air conditioner to control air temperature, a first channel to guide air supplied from the air conditioner to a conditioning target, a heat exchange channel through which the air supplied from the air conditioner exchanges heat with the conditioning target, a second channel to guide air from the conditioning target either outside the air-conditioning unit or to the air conditioner, and a channel switching unit to cause the air conditioner to suck in either external air or the air guided from the conditioning target.

Abstract: A liquid-cooling-type cooling device includes a circulatory path for coolant that cools a temperature rise portion; a heat absorbing unit that absorbs a heat from the temperature rise portion by the coolant; a heat radiating unit that radiate the heat from the coolant; a pump that circulates the coolant; and a plurality of liquid-contacting metal portions that comes into contact with the coolant, each of the liquid-contacting metal portions being made of a metal material. At least one of the liquid-contacting metal portions is grounded.

Abstract: A cooling device to cool an apparatus includes a heat receiver to receive heat from a hot portion of the apparatus using a coolant while contacting the hot portion, a heat releaser to cool the heat-received coolant to release the heat from the hot portion to outside the apparatus, the heat releaser having a variable-speed fan of multiple operation speed modes including an off mode, a coolant circulation system through which the coolant is circulated between the heat receiver and the heat releaser, a variable-speed pump to move the coolant through the coolant circulation system, whose operation speed modes include an off mode and relate to a coolant flow rate of the pump, a temperature sensor to detect a temperature in the hot portion, and a controller to control the operation modes of the fan and the pump in accordance with the temperature detected by the temperature sensor.

Abstract: An image forming apparatus includes an image forming unit that creates an image and a liquid cooling unit. The liquid cooling unit includes a heat receiving disposed in contact with a temperature rising portion, in the image forming unit, in which a temperature rises due to an image forming operation by the image forming unit, a heat radiating unit that radiates heat of a cooling liquid, a flow passage forming member that allows the cooling liquid to circulate between the heat receiving unit and the heat radiating unit, and a conveying unit that conveys the cooling liquid through the flow passage forming member. The heat radiating unit includes a radiator, and the radiator is disposed at a downstream side of the conveying unit in a cooling liquid flow direction and at an upstream side of the heat receiving unit in the cooling liquid flow direction.

Abstract: A cooling device includes a rotatable belt extended by a plurality of extending members that transfers a sheet in contact with the surface of the belt, and a plurality of cooling members to cool the sheet via the belt. A cooling surface of the cooling members contacts an internal surface of the transport belt. The cooling members are detachable. The cooling device also includes an adjuster to adjust a contact condition between the cooling surface and the internal surface according to the number of cooling members installed.

Abstract: In a cooling device that includes a cooling roller that comprises a hollow tubular member and a cooling medium transport unit for transporting a cooling liquid to the inside of the cooling roller and contacts a sheet-like member to cool down the paper, a turbulence generating unit that generates turbulence in a cooling liquid is disposed near an inner wall of the outer tube.

Abstract: A cooling device for use in an image forming apparatus, disposed downstream within the apparatus in a direction of conveyance of a sheet from a fixing device that fixes an image onto the sheet at a temperature corresponding to a sheet type, includes a conveyance part to convey the sheet, a cooling member to absorb heat by thermal conduction from the sheet being conveyed by the conveyance part, a temperature controller to control a temperature of the cooling member, a temperature detector to detect the temperature of the cooling member, and a control unit connected to the temperature controller and the temperature detector to control the cooling member, using the temperature controller, to a target temperature corresponding to the sheet type based on the temperature of the cooling member detected by the temperature detector.

Abstract: In a cooling device that includes a cooling roller that comprises a hollow tubular member and a cooling medium transport unit for transporting a cooling liquid to the inside of the cooling roller and contacts a sheet-like member to cool down the paper, a turbulence generating unit that generates turbulence in a cooling liquid is disposed near an inner wall of the outer tube.

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 cooling device includes a heat receiving unit disposed to contact a surface of a temperature-increasing part the temperature of which increases during an image forming process; a radiation unit transferring heat from a cooling liquid; a tube for circulating the cooling liquid between the heat receiving unit and the radiation unit in a liquid circulation direction; a conveying unit conveying the cooling liquid through the tube; a coupling having an internal flow path and including a first end to which a first part of the tube is connected and a second end to which a second part of the tube is connected; and an outlet for draining the cooling liquid from the tube. At least one of the first part of the tube and the second part of the tube extends to a position lower than the position of the coupling.

Abstract: Disclosed is a cooling device that includes a cooling part that is movably provided between a first position and a second position different from the first position with respect to an image forming apparatus main body and cools a periphery thereof with a cooling medium to be supplied; a cooling medium supply part that is provided in the image forming apparatus main body and cools and supplies the cooling medium to the cooling part; and a connecting member that connects the cooling part to the cooling medium supply part to circulate the cooling medium between the cooling part and the cooling medium supply part; wherein the connecting member is configured to include a flexible member and spirally provided with a moving direction of the cooling part as an axis center.

Abstract: A cooling device is disclosed. The cooling device includes a cooling section which is moveably provided with respect to an image forming device body between a first location and a second location, the second location being different from the first location, and which cools surroundings with a cooling medium to be supplied; a cooling medium supply section which is provided at the image forming device body and which cools the cooling medium to supply the cooled cooling medium to the cooling section; and a connecting member which connects the cooling section and the cooling medium supply section to circulate the cooling medium between the cooling section and the cooling medium supply section, wherein the connecting member includes a flexible member and is supported by a guiding member which guides an operation of tracking the connecting member in conjunction with movement of the cooling section.

Abstract: A cooling device includes a cooling roller having a dual tube structure including an inner tube disposed inside an outer tube, an outside flow passage and an inside flow passage in which a cooling medium flows, and an opening that allows the outside flow passage to communicate with the inside flow passage, a cooling medium transport unit, and a rotating tube joint unit mounted to one end side of the cooling roller. One end of the outer tube is coaxially rotatably fitted to a first fitting section of the rotating tube joint unit. One end of the inner tube is coaxially fitted into and rotatably or fixedly supported to a second fitting section of the rotating tube joint unit, and the other end is coaxially fitted into and rotatably or fixedly supported to a fitting section on the other end of the outer tube.

Abstract: A cooling device using a liquid coolant, including a heat receiving part separatably contactable to a target to be cooled detachably installable in an image forming apparatus, a heat releasing part to release heat from the liquid coolant, a circulation channel through which the liquid coolant is circulated between the heat receiving part and the heat releasing part, and a pump operatively connected to the circulation channel to convey the liquid coolant through the circulation channel. The circulation channel has a flexible part and a metal part continuous with the flexible part.

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 image forming apparatus including a target part to be cooled detachably attachable to the image forming apparatus, a cooling device including a heat receiving part provided to contact the target part to be cooled to receive heat from the target part to be cooled with a cooling medium provided within the heat receiving part, and a contact/separation mechanism to cause the heat receiving part to contact and separate from the target part to be cooled. The contact/separation mechanism includes a pressing unit to press the heat receiving part against the target part to be cooled. A reaction of a pressing force of the heat receiving part applied to the pressing unit when the heat receiving part is pressed against the target part to be cooled is directed onto a predetermined portion of the target part to be cooled.

Abstract: There is provided a frame for holding an electronic device, the frame including an inner member that has a shape of continuous or discontinuous loop, and is made of hollow metal having a closed cross-section; and a plurality of corner reinforcing members that are made of metal and are fixed at positions that cover curved portions of the inner member.