JP2005257994A - Fixing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixing apparatus which is improved in visibility of a transport jamming situation and a transport jamming removing performance. <P>SOLUTION: The fixing apparatus is provided with a 1st fixing rotating body and a 2nd fixing rotating body, rotating in press contact with each other; a 1st guiding member for guiding a recording sheet discharged from the press contact part between the 1st fixing rotating body and the 2nd fixing rotating body on the 1st fixing rotating body side; a 2nd guiding member for guiding the recording sheet discharged from the press contact part on the 2nd fixing rotating body side; and the position of the 2nd guiding member can be displaced independent from either of the 1st fixing rotating body and the 2nd fixing rotating body. Also, the 2nd guiding member can be displaced rotatively about a certain rotating shaft, the 2nd fixing rotating body is formed into a roll shape, and the rotating shaft of the 2nd fixing rotating body is the same as that of the 2nd guiding member. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a fixing device.

Japanese Utility Model Publication No. 3-22764

  As a conventional fixing device, there is one provided with a heating roll fixedly installed on a frame of an image forming apparatus and a pressure roll installed in a state of being pressed against the heating roll by a spring force ( Patent Document 1). In such a fixing device, in order to prevent the recording sheet from being wound around the pressure roll, a guide member for guiding the recording sheet discharged from both rolls to an appropriate conveyance path is provided in the vicinity of the pressure roll. The guide member is fixed to the pressure roll, and is configured to be displaced integrally with the pressure roll.

  However, when a recording sheet conveyance failure (conveyance jam) occurs, the guide member is fixed to the pressure roll, which may hinder the visual recognition of the jam condition and the removal of the recording sheet. The present invention has been made in view of such technical problems, and an object of the present invention is to provide a fixing device that is excellent in visibility of a conveyance jam situation and conveyance jam removal property.

That is, the present invention includes a first fixing rotator and a second fixing rotator that rotate in pressure contact with each other;
A first guide member for guiding the recording sheet discharged from the pressure contact portion between the first fixing rotator and the second fixing rotator on the first fixing rotator side; and a recording sheet discharged from the pressure contact portion. A second guide member guided on the second fixing rotator side, and the position of the second guide member can be displaced independently of either the first fixing rotator or the second fixing rotator. This is a fixing device. In addition, the first fixing rotator and the second fixing rotator rotating in pressure contact with each other, and the recording sheet discharged from the pressure contact portion between the first fixing rotator and the second fixing rotator are fixedly fixed. A fixing device comprising: a first guide member that guides on the side of the contact rotating body; and a second guide member that guides the recording sheet discharged from the press contact portion on the side of the second fixing rotor, and the position of the second guide member Is a fixing device capable of rotational displacement independently of both the first fixing rotator and the second fixing rotator. The position of the second guide member may be a fixing device that can be displaced independently of the first guide member. By configuring the fixing device in this way, even if a conveyance failure (conveyance jam) occurs in the recording sheet discharged from the press contact portion, the second guide member is independently displaced, so that the first fixing rotation is performed. Without moving the body and the second fixing rotator, it becomes easy to visually recognize the state of conveyance failure, and it becomes easy to remove the recording sheet with conveyance failure. Examples of the shape of the fixing rotator include a roll shape and an endless belt shape. Further, these fixing devices may include a heating unit that heats at least the pressure contact portion. Further, the heating means may be disposed inside at least one fixing rotator.

  A guide member side biasing member that biases the second guide member toward the first guide member; and a discharge path width regulating member that regulates a distance between the second guide member and the first guide member. It can be configured to comprise. Here, the guide member side biasing member may bias the second guide member so as to be displaced when the recording sheet is illegally discharged from the pressure contact portion. Further, the guide member side biasing member may bias the second guide member so as to be displaced toward the non-first guide member when the recording sheet is illegally discharged from the pressure contact portion. Further, when the recording sheet is illegally discharged from the press contact portion, the second guide member may be displaced so that the distance between the second guide member and the first guide member is increased. By configuring the fixing device in this way, the distance between the second guide member and the first guide member can be appropriately maintained. Even when a recording sheet conveyance failure occurs, the second guide member is displaced, so that an excessive load is not applied to the second guide member and surrounding members (for example, temperature detection means). The second guide member may have a guide shape for guiding the recording sheet discharged from the press contact portion.

  A pressure contact portion side urging member that urges the second guide member toward the pressure contact portion; and a separation width restriction member that restricts a distance between the second guide member and the pressure contact portion. I can do it. A guide member side biasing member that biases the second guide member toward the first guide member; a discharge path width regulating member that regulates a distance between the second guide member and the first guide member; A pressure contact portion side biasing member that biases the second guide member toward the pressure contact portion side; and a peeling width regulating member that regulates a distance between the second guide member and the pressure contact portion. The urging member and the pressure contact portion side urging member are the same urging member, and the discharge path width regulating member and the separation width regulating member can be configured to be the same regulating member. Here, the press contact portion side biasing member can bias the second guide member to such an extent that the recording sheet is illegally discharged from the press contact portion. Further, the press contact portion urging member can urge the second guide member to such a degree that the second guide member is displaced toward the non-press contact portion when the recording sheet is illegally discharged from the press contact portion. Further, when the recording sheet is illegally discharged from the press contact portion, the second guide member can be configured to be displaced so that the distance between the second guide member and the press contact portion is increased. By configuring the fixing device in this way, the distance between the second guide member and the press contact portion can be appropriately ensured. Even when a recording sheet conveyance failure occurs, the second guide member is displaced, so that an excessive load is not applied to the second guide member and surrounding members (for example, temperature detection means). The second guide member has a peeling claw for preventing the recording sheet discharged from the press contact portion from adhering to the second fixing rotating body, and the peeling width regulating member includes the peeling claw and the peeling claw. The distance from the press contact portion may be regulated.

  The second guide member may be configured to be displaceable while maintaining a constant distance between the second guide member and the second fixing rotator. Further, the second guide member may be provided with a temperature detecting means for detecting the surface temperature of the second fixing rotator. Further, the second guide member has a separation claw for preventing the recording sheet discharged from the press contact portion from adhering to the second fixing rotator, and the second guiding member is formed between the separation claw and the second fixing rotator. You may comprise so that it can displace, keeping distance constant. Specifically, the second guide member can be rotationally displaced about a certain rotation axis, the second fixing rotator has a roll shape, the rotation axis of the second fixing rotator and the second guide. The rotation axis of the member can be configured to be the same rotation axis. In addition, a rotation support member that is rotatably supported with respect to the rotation shaft of the second fixing rotator can be provided, and the second guide member can be fixedly attached to the rotation support member. The second guide member is provided with temperature detecting means for detecting the surface temperature of the second fixing rotator, and the temperature detecting means is arranged on the surface of the second fixing rotator. A temperature sensor unit that contacts and detects the temperature; and a thermoelectric conversion unit that converts heat of the temperature sensor unit into an electric signal, and the temperature sensor unit is connected to the fixing rotating body from the second guide member. It can be configured to extend in the rotational direction and the forward direction. By configuring the fixing device in this way, the distance between the second guide member and the second fixing rotator can be appropriately ensured even if the second guide member is displaced. Moreover, since the distance between the temperature detecting means and the second rotating body is constant, the detection accuracy is stable.

  According to the present invention, it is possible to provide a fixing device that is excellent in visibility of a conveyance jam situation and conveyance jam removal property.

  FIG. 1 illustrates a multifunction peripheral (image forming apparatus) 100 including a fixing device 1 according to an embodiment of the present invention. The multi-function device 100 includes a print function, a copy function, and a facsimile function. The configuration is roughly divided into an image input unit 5, an image forming unit 4, and a paper storage unit 6. The conveyance path of the recording paper p is indicated by a dotted line in the drawing.

  The image input unit 5 includes a document placement tray 51, a document discharge tray 52, a platen glass 53, and the like, and optically reads a document image and obtains image information thereof. The sheet storage unit 6 includes first to fourth sheet trays 61 to 64, and recording sheets p of different types (size, material, thickness, etc.) are stored in the respective sheet trays 61 to 64 as recording sheets. Yes. The image forming unit 4 performs the following operation by the function of the multifunction peripheral 100. That is, when using the print function of the multifunction peripheral 100, the image forming unit 4 forms a toner image on a desired type of recording paper p in accordance with an image forming command input from a personal computer (not shown). When the copy function of the multifunction peripheral 100 is used, the image forming unit 4 forms a toner image on a desired type of recording paper p according to the image information of the original read by the image input unit 5. Further, when using the facsimile function of the multifunction machine 100, the image forming unit 4 forms a toner image on a desired type of recording paper p in accordance with facsimile information input through a telephone communication line.

  The basic configuration and operation of the image forming unit 4 are as follows. The image forming unit 4 includes a photosensitive drum 40 as an image carrier, and a charging roll 41, an exposure device 42, a developing device 43, a transfer roll 44, a cleaning blade 45, and the like around the photosensitive drum 40. Has been. The image forming unit 4 includes a fixing device 1, a paper discharge roll pair 48, and a paper discharge tray 49 on the downstream side of the photosensitive drum 40 in the conveyance direction of the recording paper p. In addition, the fixing device 1 includes a heating roll 10 and a pressure roll 20.

  Then, the image forming unit 4 forms a toner image on the recording preparation p as follows. The photosensitive drum 40 is rotationally driven in the direction of the arrow in the drawing. A charging bias voltage is applied to the charging roll 41. As a result, the surface of the photosensitive drum 40 that contacts the charging roll 41 is uniformly charged. Next, a laser beam corresponding to the above-described image formation command, image signal, and facsimile signal is irradiated from the exposure device 42 to the surface of the photosensitive drum 40. As a result, on the surface of the photosensitive drum 40, a potential difference is generated between a portion exposed by the laser beam and a portion not exposed, and an electrostatic latent image is formed by the potential difference. Next, toner is selectively applied to the electrostatic latent image portion by the developing device 43. As a result, a toner image is formed on the photosensitive drum 40. A transfer bias voltage is applied to the transfer roll 44, and when the toner image on the photosensitive drum 40 reaches the transfer position, a desired type of recording paper p is conveyed to the transfer position, and the toner image is placed on the recording paper p. Electrostatically transferred. Next, the toner image on the recording paper p is fixed by the fixing device 1. The fixed recording paper p is discharged to the discharge tray 49 by the discharge roll pair 48, and one image forming operation is completed.

  FIG. 2 is a perspective external view of the fixing device 1 according to the embodiment of the present invention. FIG. 3 is a schematic cross-sectional view of the fixing device 1 according to the embodiment of the present invention. The fixing device 1 includes a heating roll (roll-shaped first fixing rotator) 10 and a pressure roll (roll-shaped second fixing rotator). The heating roll 10 can use a metal roll as a base material and a surface on which a silicon-based release layer is coated. The heating roll 10 includes first to third halogen lamps 10a to 10c as heating means. Among these halogen lamps 10a to 10c, the first and second halogen lamps 10a and 10b are disposed in a region closer to the nip portion N, and the third halogen lamp 10c is disposed in a region farther from the nip portion. Yes. As the pressure roll 20, a metal roll as a base material and an elastic layer such as silicon rubber provided on the surface of the pressure roll 20 and a silicon release layer coated on the surface thereof can be used.

  The configuration on the heating roll side of the fixing device 1 is as follows. On the heating roll side, the first fixing frame 35 fixedly attached to the frame of the multi-function device 100 and the first fixing frame 35 are fixedly attached, and the heating roll 10 and the pressure roll 20 are A first upstream guide chute 34 for guiding the recording paper p on the upstream side of the nip portion (pressure contact portion) N and a first fixing frame 35 are fixedly attached, and the recording paper p on the downstream side of the nip portion N is attached. Is fixedly attached to the first fixing claw (first guide member) 12 and the first fixing frame 35 to assist the peeling of the recording paper p from the surface of the heating roll 10, and the recording paper p peeled off is heated to the heating roll 10. And a first downstream guide chute (first guide member) 13 that is guided by the side. In the first downstream guide chute 13, guide shapes 13a to 13g extending in the conveyance direction of the recording paper p are provided. The first downstream guide chute 13 is integrally formed with a tracking portion (regulating member, discharge path width regulating member, peeling width regulating member) 14.

  The configuration on the pressure roll side of the fixing device 1 is as follows. On the pressure roll side, the second fixing frame 30 fixedly attached to the first fixing frame 35 and the second fixing frame 30 fixedly attached to the second fixing frame 30, the heating roll 10 and the pressure roll 20 A second upstream guide chute 33 that guides the recording paper p on the upstream side of the nip portion (pressure contact portion) N, and a pressure lever that holds both ends of the pressure roll 20 in the rotation axis direction while the pressure roll 20 is rotatable. 31a, b, coil springs 32a, b that press the pressure levers 31a, b toward the heating roll 10, and both ends of the pressure roll 20 in the rotational axis direction are held inside the pressure levers 31a, b, respectively. Baffle supports 22a and 22b. Here, the baffle supports 22a and 22b are configured to be rotatable independently of the rotation of the pressure roll 20, and the rotation axes of the baffle supports 22a and 22b coincide with the rotation axis of the pressure roll 20.

  A baffle (second guide member) 21 is fixedly attached to the baffle supports 22a and 22b. On the surface of the baffle 21 on the heating roll 20 side, a second downstream guide chute portion (second guide member) 22 for guiding the recording paper p from which the nip portion N has been removed on the pressure roll 20 side, and the pressure roll 20 The claw portion (second guide member) 23 that prevents the recording paper p from being wrapped around the surface of the recording medium and the tracked portion (regulation member, discharge path width regulation member) where the tracking portion 14 of the first downstream guide chute 13 abuts. , A separation width regulating member) 27, and a baffle lever 26 for manually rotating the baffle 21 are provided. A temperature sensor (temperature detection means) 28 is fixedly attached to the baffle 21, and the temperature detection unit 28 b extends from the thermoelectric conversion unit 28 a in the rotation direction of the pressure roll 20. Further, one end of a helical spring (biasing member, guide member side biasing member, pressure contact portion side biasing member) 25 is attached to the baffle 21, and the other end is attached to the first fixing frame 35. Yes.

  The fixing device 1 fixes the toner image on the recording paper p as follows. The heating roll 10 and the pressure roll 20 are each driven to rotate in the direction of the arrow in FIG. The recording paper p holding the transferred toner image that is not fixed on the surface is guided by the first upstream guide chute 34 and the second upstream guide chute 33 and enters the nip portion N between the heating roll 10 and the pressure roll 20. . In the nip portion N, heat and pressure are applied to the recording paper p and the toner image, and the toner melts, whereby the toner image is fixed on the recording paper p. The leading edge of the recording paper p is peeled off from the surface of the heating roll 10 by the peeling claw 12, guided by the baffle 21 and the first downstream guide chute 13, the trailing edge of the recording paper p leaves the nip portion N, and the fixing is completed. .

  Next, formation of the nip portion N, distance G1 between the first downstream guide chute 13 and the baffle 21 (second downstream guide chute portion 22), distance G2 between the nip portion N and the baffle 21 (peeling claw 23), baffle 21 The distance G3 between the (peeling claw 23) and the pressure roll 20 surface will be described.

  The nip portion N is formed as follows. The coil springs 32a and 32b slightly move the pressure roll 20 toward the heating roll 10 via the pressure levers 31a and 31b. And the elastic force which coil spring 32a, b expresses and the elastic force which pressurization roll 20 (its elastic layer) balances balance, and pressurization roll 20 elastically deforms in that case, and heating roll 10 A nip portion N is formed between the two. In addition, the pressure roll 20 slightly moves to the heating roll side, and the baffle supports 22a and 22b that share the rotation axis with the pressure roll 20 also slightly move to the heating roll side.

  The distance G1 between the first downstream guide chute 13 and the baffle 21 (second downstream guide chute portion 22) is determined as follows. The baffle 21 is urged toward the heating roll 10 side and the first downstream guide chute 13 side by a helical spring 25. On the other hand, when the tracking portion 14 of the first downstream guide chute 13 and the tracked portion 27 of the baffle 21 come into contact with each other, the distance between the first downstream guide chute 13 and the baffle 21 (second downstream guide chute portion 22) is It stays at a certain distance G1 without approaching further. Similarly, the distance G2 between the nip portion N and the baffle 21 (peeling claw 23) is determined as follows. The baffle 21 is urged toward the heating roll 10 side, the first downstream guide chute 13 side, and the nip portion N side by a helical spring 25. On the other hand, when the tracking portion 14 of the first downstream guide chute 13 and the tracked portion 27 of the baffle are in contact with each other, the distance between the nip portion N and the baffle 21 (peeling claw 23) does not approach any longer. Settle to distance G2.

  The distance G3 between the baffle 21 (peeling claw 23) and the pressure roll 20 surface is determined as follows. The baffle 21 (peeling claw 23) is fixedly attached to the baffle supports 22a and 22b. Each of the baffle supports 22a and 22b is configured to be rotatable about the rotation axis of the pressure roll 20. Therefore, the distance from the rotating shaft of the pressure roll 20 to the baffle 21 (peeling claw 23) is constant regardless of the rotational displacement of the baffle supports 22a and 22b and the baffle 21. Therefore, the distance G3 between the baffle 21 (peeling claw 23) and the pressure roll 20 surface is also constant.

  In addition, since the baffle 21 is configured to be rotatable about the rotation axis of the pressure roll 20, the mounting accuracy of the temperature sensor 28 attached to the baffle 21 with respect to the pressure roll 20 can be improved. That is, regardless of the rotational displacement of the baffle 21, the distance between the temperature sensor 28 fixedly attached to the baffle 21 and the surface of the pressure roll 20, and the temperature detection unit 28 b of the temperature sensor 28 and the pressure roll 20. The contact angle and the overlap amount are constant, and the mounting accuracy can be improved with a simple configuration. Note that the temperature of the surface of the pressure roll 20 as well as the temperature of the surface of the heating roll 10 is detected when the heat capacity of the heating roll 10 is reduced in consideration of energy saving and shortening of the recovery time (for example, the thin thickness of the roll). This is because the temperature unevenness in the circumferential direction becomes large and the temperature needs to be controlled more finely. In particular, in a fixing device with high productivity, the necessity for finer temperature control is high.

  FIG. 4 schematically illustrates the rotational displacement of the baffle 21. FIG. 4A shows a normal baffle 21. In this fixing device 1, the baffle can be rotationally displaced from this state in the direction of the thick arrow A in the figure. FIG. 4B shows the baffle 21 that has been rotationally displaced by a predetermined amount. In this fixing device 1, a force for rotating the baffle in the direction of the thick arrow B in the figure works from this state by the elastic force of the helical spring 25. Various effects are produced from the characteristics of the fixing device 1. Hereinafter, the effect of the fixing device 1 will be described with reference to FIGS. The baffle 21 is provided with peeling claws 23a to f and a second downstream guide chute portion 22, and guide shapes 22a to 22a extending in the conveyance direction of the recording paper p in the second downstream guide chute portion 22. g.

  FIG. 5 explains one effect of the fixing device 1. FIG. 5A shows the fixing device 1 in a state where the recording paper p is jammed. On the other hand, FIG. 5B shows the fixing device 1 in a state where the nip portion N is wide open. In the unlikely event that the conveyance failure of the recording paper p occurs in the nip portion N, or in the case of maintenance of the fixing device 1, the operator rotates the baffle 21 by operating the baffle lever 26 formed on the baffle 21. Displacement (see arrow A1 in the figure) facilitates access to the nip portion N between the heating roll 10 and the pressure roll 20. As a result, the visibility of the state of the recording paper p is enhanced, and if there is a jammed recording paper p, it is easy to remove it. Further, since the temperature sensor 28 is separated from the nip portion N together with the baffle 21 when removing the jammed recording paper p, there is no possibility that the operator will accidentally damage the temperature sensor 28. Furthermore, it is not always necessary to separate the heating roll 10 and the pressure roll 20 to remove the recording paper p, so that the fixing device 1 can be simplified, reduced in size, and reduced in weight.

  FIG. 6 illustrates another effect of the fixing device 1. FIG. 6A shows the fixing device 1 in a state where the recording paper p is jammed (initial state). On the other hand, FIG. 6B shows the fixing device 1 in a state where the conveyance of the recording paper p has further progressed. The conveyance force of the recording paper p rotates and displaces the baffle 21 against the urging force of the helical spring 25 (see arrow A2 in the figure), so that the damage to the recording paper p causing the conveyance failure is reduced and the conveyance is performed. It is possible to prevent the defective recording paper p from damaging the surrounding baffle 21, peeling claw 12, first downstream guide chute 13, temperature sensor 28, and the like. From this state, the operator operates the baffle lever 26 formed on the baffle 21 to further rotationally displace the baffle 21 (see arrow A3 in the figure), thereby improving the visibility of the state of the recording paper p, The jammed recording paper p can be easily removed.

  FIG. 7 illustrates another effect of the fixing device 1. FIG. 7A shows the fixing device 1 in a normal state. On the other hand, FIG. 7B shows the fixing device 1 in a state in which the distance between the axes of the heating roll 10 and the pressure roll 20 is closer than that in the normal state due to some circumstances. In this way, even if the distance between the axes of the pressure roll 20 and the heating roll 10 changes, the baffle 21 can be rotationally displaced independently of the pressure roll 20 and the heating roll 10. When the tracking unit 14 and the tracked portion 27 of the baffle 21 come into contact with each other, the baffle 21 rotates (a minute amount), and the distance between the first downstream guide chute 13 and the baffle 21 (second downstream guide chute portion 22). Remains the initial value G1. In addition, as a case where the distance between the axes of the heating roll 10 and the pressure roll 20 changes by a small amount, for example, when adjusting the nip balance between the heating roll 10 and the pressure roll 20, Examples include deterioration.

1 is a schematic view of a multifunction machine that uses a fixing device according to an embodiment of the present invention. 1 is an external perspective view of a fixing device according to an embodiment. 1 is a schematic cross-sectional view of a fixing device according to an embodiment. This explains the rotational displacement of the baffle. One of the effects of the fixing device according to this embodiment will be described. One of the effects of the fixing device according to this embodiment will be described. One of the effects of the fixing device according to this embodiment will be described.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Fixing device, 10 ... Heating roll (first fixing rotator), 10a to c ... Halogen heater (heating means), 12 ... First peeling claw (first guiding member), 13 ... First downstream guiding chute ( (First guide member), 14 ... tracking part (regulation member, discharge path width regulation member, peeling width regulation member), 20 ... pressure roll (roll-shaped second fixing rotating body), 21 ... baffle (second guide member) ), 22 ... Second downstream guide chute part (second guide member), 23 ... Peeling claw part (second guide member), 25 ... Spiral spring (biasing member, guide member side biasing member, pressure contact part side attaching) 27) Tracked portion (regulating member, discharge path width regulating member, peeling width regulating member), 28 ... temperature sensor (temperature detecting means), 28a ... thermoelectric converter, 28b ... temperature detector

Claims (20)

A first fixing rotator and a second fixing rotator rotating in pressure contact with each other;
A first guide member for guiding the recording sheet discharged from the pressure contact portion between the first fixing rotator and the second fixing rotator on the first fixing rotator side;
A second guide member for guiding the recording sheet discharged from the press contact portion on the second fixing rotator side;
A fixing device comprising:
A fixing device in which the position of the second guide member can be displaced independently of either the first fixing rotator or the second fixing rotator. A first fixing rotator and a second fixing rotator rotating in pressure contact with each other;
A first guide member for guiding the recording sheet discharged from the pressure contact portion between the first fixing rotator and the second fixing rotator on the first fixing rotator side;
A second guide member for guiding the recording sheet discharged from the press contact portion on the second fixing rotator side;
A fixing device comprising:
The fixing device in which the position of the second guide member can be rotationally displaced independently of any of the first fixing rotator and the second fixing rotator. The fixing device according to claim 1, wherein the position of the second guide member is displaceable independently of the first guide member. A guide member side biasing member for biasing the second guide member toward the first guide member;
The fixing device according to claim 1, further comprising a discharge path width regulating member that regulates a distance between the second guide member and the first guide member. The fixing device according to claim 4, wherein the urging member side urging member urges the second guiding member to be displaced when the recording sheet is illegally discharged from the press contact portion. 5. The guide member-side biasing member biases the second guide member so that the second guide member is displaced toward the non-first guide member when the recording sheet is illegally discharged from the press contact portion. Fixing device. 5. The fixing device according to claim 4, wherein when the recording sheet is illegally discharged from the pressure contact portion, the second guide member is displaced so that a distance between the second guide member and the first guide member is increased. The fixing device according to claim 1, wherein the second guide member has a guide shape for guiding the recording sheet discharged from the press contact portion. A pressing portion side biasing member that biases the second guide member toward the pressing portion;
The fixing device according to claim 1, further comprising a peeling width regulating member that regulates a distance between the second guide member and the pressure contact portion. A guide member side biasing member for biasing the second guide member toward the first guide member;
A discharge path width regulating member that regulates a distance between the second guiding member and the first guiding member;
A pressing portion side biasing member that biases the second guide member toward the pressing portion;
A peeling width regulating member that regulates the distance between the second guide member and the pressure contact portion;
The guide member side biasing member and the pressure contact portion side biasing member are the same biasing member,
The fixing device according to claim 1, wherein the discharge path width regulating member and the peeling width regulating member are the same regulating member. The fixing device according to claim 9, wherein the pressing portion urging member urges the second guiding member to be displaced when the recording sheet is illegally discharged from the pressing portion. The fixing device according to claim 9, wherein the press contact portion urging member urges the second guide member to be displaced toward the non-press contact portion when the recording sheet is illegally discharged from the press contact portion. The fixing device according to claim 9, wherein when the recording sheet is illegally discharged from the press contact portion, the second guide member is displaced so that a distance between the second guide member and the press contact portion is increased. The second guide member has a peeling claw for preventing the recording sheet discharged from the press contact portion from adhering to the second fixing rotator,
The fixing device according to claim 9, wherein the peeling width regulating member regulates a distance between the peeling claw and the pressure contact portion. The fixing device according to claim 1, wherein the second guide member is displaceable while maintaining a constant distance between the second guide member and the second fixing rotator. The fixing device according to claim 15, wherein the second guide member is provided with temperature detection means for detecting a surface temperature of the second fixing rotator. The second guide member has a peeling claw for preventing the recording sheet discharged from the pressure contact portion from adhering to the second fixing rotator,
The fixing device according to claim 1, wherein the fixing device can be displaced while maintaining a constant distance between the peeling claw and the second fixing rotating body. The second guide member can be rotationally displaced about a certain rotation axis,
The fixing device according to claim 1, wherein the second fixing rotator has a roll shape, and a rotation axis of the second fixing rotator and a rotation axis of the second guide member are the same rotation axis. A rotation support member rotatably supported with respect to the rotation axis of the second fixing rotator;
The fixing device according to claim 18, wherein the second guide member is fixedly attached to the rotation support member. The second guide member is provided with temperature detecting means for detecting the surface temperature of the second fixing rotator,
The temperature detection means includes a temperature sensor unit that contacts the surface of the second fixing rotator and detects the temperature thereof, and a thermoelectric conversion unit that converts heat of the temperature sensor unit into an electrical signal,
The fixing device according to claim 1, wherein the temperature sensor unit extends from the second guide member in a rotation direction and a forward direction of the fixing rotator.

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