Abstract: A fixing device includes: a heating unit configured to heat a medium to be conveyed along a conveyance path by radiation; and a shielding unit made of non-metallic material, the shielding unit being configured to form a shielding state in which radiation from the heating unit is shielded and a non-shielding state in which radiation from the heating unit is not shielded, in which the shielding unit being expanded in a direction intersecting the radiation in the shielding state and is stored in the non-shielding state.

Abstract: A fixing device includes: a non-contact heating unit configured to heat a recording medium in a non-contact manner; and a contact heating unit configured to press and heat the recording medium on a downstream side of the non-contact heating unit in a conveyance direction of the recording medium, in which the non-contact heating unit controls an amount of heat applied to the recording medium according to information on whether the recording medium is black or not, and a thickness of the recording medium, and the contact heating unit controls the pressure applied to the recording medium according to the thickness regardless of whether the recording medium is black or not.

Abstract: A transport device includes a rotating body including a recessed portion on an outer surface, a rotatable heat unit that is in contact with the outer surface of the rotating body and forms an interposition region in which a recording medium is interposed between the heat unit and the rotating body, a transport unit that: (i) includes a hold member capable of holding a portion of the recording medium near a leading edge, (ii) transports the recording medium by moving the hold member in a rotational direction of the rotating body with the hold member contained in the recessed portion, and (iii) causes the hold member to pass through the interposition region, and a controller that controls rotation of the rotating body such that the recessed portion stops at a position upstream or downstream of the interposition region in the rotational direction when an anomaly is detected.

Abstract: An image forming apparatus includes: an image forming part that forms an image at an image formation position on one surface of a recording medium; a transport part that transports the recording medium while holding a front end side of the recording medium so that the recording medium passes the image formation position; a transport body that transports the recording medium together with the transport part while supporting the other surface of the recording medium on which an image is to be formed by the image forming part; and a support part that supports the other surface of the recording medium, and the support part starts the support before the other surface of the recording medium is separated from the transport body as a result of transport by the transport part.

Abstract: A recording medium transport device includes: a circulating member that forms a part of a transport path for transporting a recording medium; a holding member that is fixed to the circulating member and thereby circulates and holds a front end portion of the recording medium; plural transport cylinders around which the circulating member is suspended and having a recessed part in which the holding member is stored; and a selection part that selects any one of the plural transport cylinders. A mode for stopping the selected one of the plural transport cylinders so that the recessed part of the selected one of the plural transport cylinders is located at a maintenance position is prepared.

Abstract: A transport device includes a rotating body including a recessed portion on an outer surface, a rotatable heat unit that is in contact with the outer surface of the rotating body and forms an interposition region in which a recording medium is interposed between the heat unit and the rotating body, a transport unit that: (i) includes a hold member capable of holding a portion of the recording medium near a leading edge, (ii) transports the recording medium by moving the hold member in a rotational direction of the rotating body with the hold member contained in the recessed portion, and (iii) causes the hold member to pass through the interposition region, and a controller that controls rotation of the rotating body such that the recessed portion stops at a position upstream or downstream of the interposition region in the rotational direction when an anomaly is detected.

Abstract: A transport device includes: a first transport body; a second transport body that is movable between a contact position and a separate position with respect to the first transport body and that nips a transported material with the first transport body at the contact position; and a transport section that includes a holder to hold a leading end portion of the transported material and that transports the transported material toward a nip region where the first transport body and the second transport body nip the transported material in a state in which the second transport body is located at the separate position. After holding of the leading end portion by the holder for the transported material transported by the transport section has been released, the second transport body nips the transported material with the first transport body and transports the transported material.

Abstract: A transport device includes: a first rotating body including a shaft portion, a cylindrical portion on an outer periphery of the shaft portion, and a recessed portion in an outer surface of the cylindrical portion; a second rotating body capable of moving from the first rotating body while contacting an outer surface of the first rotating body and nipping a recording medium; a transport unit that includes a holding portion that holds the recording medium, and that transports the recording medium by moving the holding portion in a rotation direction of the first rotating body while the holding portion is disposed in the recessed portion; and a moving mechanism including a cam portion on a side of the cylindrical portion and a contact portion connected to the second rotating body and that comes into contact with the cam portion to separate the second rotating body from the first rotating body.

Abstract: A heating device includes a heating unit that heats in a non-contact manner an upper surface of a transport material that is transported; and a blowing unit that blows air against a lower surface of the transport material via multiple blowing holes that open with respect to the lower surface, the multiple blowing holes being disposed so that blowing holes that are closest and adjacent to each other in a transport direction of the transport material are shifted from each other in an intersection direction that intersects the transport direction.

Abstract: A fixing device includes: a heating section that heats in a non-contact manner a front surface of a recording medium; a feeding section that feeds the recording medium while causing the front surface to be opposed to the heating section; and a maintaining section that, in order to enable the recording medium to be fed by the feeding section while a rear surface that is opposite to the front surface, and that is in an image region where an unfixed-image is formed on the front surface is in a non-contact state, maintains the non-contact state.

Abstract: A transport device includes a transport unit that transports a sheet-like transport material without holding a one-end-side portion of the transport material in a transport direction and a blowing unit that blows air against a lower surface of the transport material that is transported by the transport unit via multiple blowing holes that open with respect to the lower surface, a wind speed of the blowing unit being higher on two end sides than on a central side in an intersection direction that intersects the transport direction.

Abstract: A heating device includes a heating unit that heats in a non-contact manner an upper surface of a transport material that is transported, and a blowing unit that blows air against a lower surface of the transport material via a blowing hole that is provided in an opposing surface opposing the lower surface of the transport material, the opposing surface being obliquely disposed with respect to a horizontal direction.

Abstract: Laser processing head (20) of the present disclosure includes housing (30), transparent protector (40), and temperature sensor (70). Housing (30) includes an optical path of processing laser light (LB). Transparent protector (40) is detachably fixed to housing (30), passes processing laser light (LB), and suppresses dust of work material (W) entering into housing (30). Here, the dust is generated from the work material (W) irradiated with processing laser light (LB). Temperature sensor (70) detects the temperature of transparent protector (40).

Abstract: A fixing device includes: a heating section that heats in a non-contact manner a front surface of a recording medium; a feeding section that feeds the recording medium while causing the front surface to be opposed to the heating section; and a maintaining section that, in order to enable the recording medium to be fed by the feeding section while a rear surface that is opposite to the front surface, and that is in an image region where an unfixed-image is formed on the front surface is in a non-contact state, maintains the non-contact state.

Abstract: A transport device includes a transport unit that transports a sheet-like transport material without holding a one-end-side portion of the transport material in a transport direction; and a blowing unit that blows air against a lower surface of the transport material that is transported by the transport unit via multiple blowing holes that open with respect to the lower surface, an arrangement interval of the multiple blowing holes in the transport direction being inconstant in the transport direction.

Abstract: Laser processing head (20) of the present disclosure includes housing (30), transparent protector (40), and temperature sensor (70). Housing (30) includes an optical path of processing laser light (LB). Transparent protector (40) is detachably fixed to housing (30), passes processing laser light (LB), and suppresses dust of work material (W) entering into housing (30). Here, the dust is generated from the work material (W) irradiated with processing laser light (LB). Temperature sensor (70) detects the temperature of transparent protector (40).

Abstract: Provided is an image forming device including: a conveying unit configured to convey a recording medium while rotating, in a state of being in contact with a back surface of the recording medium having a front surface on which a toner image is transferred; a main heating unit configured to heat the conveyed recording medium to fix the toner image on the recording medium; and a preheating unit disposed upstream of the main heating unit in a conveying direction of the recording medium and configured to heat, in a non-contact state, the recording medium being conveyed by the conveying unit, a portion of the conveying unit that is in contact with the recording medium being formed of a material that makes a maximum temperature of the portion be equal to or lower than a temperature of the recording medium when the recording medium is heated by the preheating unit.

Abstract: A transport device includes a transport unit that transports a sheet-like transport material without holding a one-end-side portion of the transport material in a transport direction; and a blowing unit that blows air against a lower surface of the transport material that is transported by the transport unit via multiple blowing holes that open with respect to the lower surface, an arrangement interval of the multiple blowing holes in a direction of intersection with respect to the transport direction being smaller at two end portions than at a central portion of the blowing unit.

Abstract: A transport device includes: a first nipping part having an outer surface; a second nipping part having an outer surface, the second nipping part being configured to form, with the first nipping part, a nip region in which a recording medium is nipped by bringing the outer surface of the second nipping part into contact with the outer surface of the first nipping part, the second nipping part being relatively movable between a first position at which a distance from the second nipping part to the first nipping part is a first distance at which the nip region is formed and a second position at which the distance from the second nipping part to the first nipping part is longer than the first distance; a transport part including a holder that holds a front end side of the recording medium, the transport part being configured to move the holder to transport the recording medium to pass through the nip region together with the holder while the recording medium is being held by the holder; and a moving mechanism co

Abstract: An image forming device includes a transfer unit that transfers a toner image onto a recording medium that has first and second surfaces and is conveyed in a conveyance direction; a main heating unit arranged downstream of the transfer unit in the conveyance direction, and which contacts and heats the recording medium and fixes the toner image onto the recording medium; a reversing unit that reverses front and back of the recording medium having a first toner image fixed onto the first surface; and a preheating unit arranged between the transfer and main heating units in the conveyance direction and that heats the recording medium having a second toner image transferred onto the second surface. The preheating unit heats the recording medium so that a temperature of the first surface is lower than a softening point of a toner before the recording medium is heated by the main heating unit.