JP6561534B2 - Image forming apparatus - Google Patents

Description

  The present invention relates to an image forming apparatus.

In Patent Document 1, when the cover is attached to the upper frame, the end portion of the cover acts as a stopper to leave a slight gap between the two rolls. A configuration that greatly opens is disclosed.
Patent Document 2 discloses a configuration in which the pressurizing member is retracted from the input unit even when the cover is closed so that the engagement can be released.
Patent Document 3 discloses a configuration in which the pressure contact between the cylindrical film and the conveyance roller is released by rotating the operation lever and rotating the guide core member against the pressure spring.

Japanese Patent Laid-Open No. 04-257886 Japanese Patent Laid-Open No. 07-140832 JP-A-10-181937

In an image forming apparatus, in order to eliminate a paper jam, a rotating member used for transporting paper may be moved in conjunction with an opening operation of an opening / closing member such as an exterior cover. Further, the rotating member may be moved in conjunction with the closed opening / closing member to return the rotating member to the original position.
Here, in the configuration in which the rotating member moves in conjunction with the opening / closing member to be closed, the operation load required for the closing operation of the opening / closing member tends to increase.
An object of the present invention is to reduce an operation load required for a closing operation of an opening / closing member and in a configuration in which a rotating member moves in conjunction with the opening / closing member to be closed.

According to the first aspect of the present invention, the apparatus main body having an opening, an image forming unit that forms an image on a recording material, and the apparatus main body can be opened and closed, and the apparatus main body is closed. have a moving portion that moves the opening and closing member for closing the opening, used for the transport of the recording material, on the side opposite to the said opening sandwiched opening side rotating member and the opening-side rotating member located at the opening side A pair of rotating members configured to be positioned opposite to each other, the pair of rotating members provided so as to be separable or capable of lowering the contact pressure, and rotatable about a rotating shaft The contact part of the moving part provided on the opening / closing member provided and closed contacts and is pressed by the contact part and is inclined with respect to the moving direction of the contact part when the contact part contacts. Placed pressed A load that is received from the moving part on the pressed surface, moves at least one rotating member, contacts the pair of rotating members that are separated from each other, or sets the contact pressure of the pair of rotating members. A rotation member moving means for increasing the position of the pressed surface and the rotation shaft when the opening / closing member is closed, the axis of the opposite rotation member and the axis of the opening rotation member Is compared with the position in the direction in which the plane passing through the surface extends, the pressed surface is located on the side farther from the opening than the rotating shaft, and the pressed surface is on the upper surface of the rotating member moving means. an image forming apparatus that is provided.
According to a second aspect of the present invention, one of the pair of rotating members is provided so as to be swingable about the rotating shaft, and the rotating member moving means is configured to rotate about the rotating shaft. The image forming apparatus according to claim 1, wherein one rotating member is moved to bring the pair of spaced rotating members into contact with each other or the contact pressure is increased.
According to a third aspect of the present invention, the rotating member moving means receives a driving force from the opening / closing member side and moves at least one of the rotating members when the opening / closing member is opened. The image forming apparatus according to claim 1, wherein the pair of rotating members are separated from each other or the contact pressure is reduced.
According to a fourth aspect of the present invention, the rotating member moving means is provided with a pressed member that is pressed in one direction by the opening / closing member when the opening / closing member is opened. When the opening / closing member is opened, the pressed member receives the driving force, and the pressed member is tilted in the opposite direction when pressed in the opposite direction to the one direction. The image forming apparatus according to claim 3, wherein the image forming apparatus is displaceably provided in the image forming apparatus.
According to a fifth aspect of the present invention, there is provided an apparatus main body having an opening, an image forming unit for forming an image on a recording material, and an apparatus that can be opened and closed with respect to the apparatus main body. have a moving portion that moves the opening and closing member for closing the opening, used for the transport of the recording material, on the side opposite to the said opening sandwiched opening side rotating member and the opening-side rotating member located at the opening side A pair of rotating members configured to be positioned opposite to each other, the pair of rotating members provided so as to be separable or capable of lowering the contact pressure, and rotatable about a rotating shaft provided, wherein one of the rotary member of the pair of rotary members supported and rotated by being more pressed pressed portion to the movable portion fraction to be moved along with the said opening and closing member is closed to open, the One rotating member Comprising a rotary member support member to increase the contact pressure between the contacting members or the one of the rotating member and the other rotational member, definitive when the closing member is closed, the position of the pressed portion and the rotary shaft And when the position in the direction in which the plane passing through the axis of the opposite rotation member and the axis of the opening side rotation member extends is compared with the rotation axis on the side farther from the opening. the pressed portion is an image forming apparatus you position.
According to a sixth aspect of the present invention, the rotating member support member is pressed and rotated by the opening / closing member when the closed opening / closing member is opened, and the one rotating member is separated from the other rotating member. 6. The image forming apparatus according to claim 5, wherein the contact pressure between the one rotating member and the other rotating member is reduced.
The invention according to claim 7 is an apparatus main body, an image forming unit that forms an image on a recording material, an opening / closing member that can be opened and closed with respect to the apparatus main body, and a pair used for conveying the recording material. A pair of rotating members provided so as to be separable or capable of lowering the contact pressure, and a rotating member provided so as to be rotatable around a predetermined position. When one of the rotating members is supported and the opened opening / closing member is closed, the pressed portion is pressed by the opening / closing member to rotate, and the one rotating member is brought into contact with the other rotating member or the A rotating member supporting member that increases a contact pressure between the one rotating member and the other rotating member, and in a state where the opening and closing member is closed, the pressed portion of the rotating member supporting member is Different parts Is in contact with the rotation member of the other, is restricted movement of the rotary member supporting member by the other rotational member, by the regulations, the movement of the one rotary member in the direction away from the other rotary member Is an image forming apparatus that is regulated.
According to an eighth aspect of the present invention, the pressed portion to be pressed by the opening / closing member to be closed among the rotating member support members is formed in a planar shape and pressed by a predetermined pressing portion of the opening / closing member. is the relative moving direction of the pressing portion when the pressing portion is in contact against the pressed portion, the image forming apparatus according to claim 7, characterized in that the pressed portion is inclined is there.

According to the first aspect of the present invention, compared to the case where the pressed surface is not inclined with respect to the moving direction of the moving part, the operation load required for the closing operation of the opening and closing member is interlocked with the closing opening and closing member. The operation load in the configuration in which the rotating member moves can be reduced.
According to the invention of claim 2, when the opening / closing member is closed, one rotating member moves linearly toward the downstream side in the moving direction of the opening / closing member, and the one rotating member faces the other rotating member. As compared with the above, it is possible to reduce the operation load required for the closing operation of the opening / closing member.
According to the invention of claim 3, the pair of rotating members can be separated in conjunction with the opening operation of the opening / closing member, or the contact pressure of the pair of rotating members can be reduced. .
According to invention of Claim 4, even if it is a case where the opening-and-closing member closed contacts a to-be-pressed member, an opening-and-closing member can be closed now.
According to the invention of claim 5, when the opening / closing member is closed, the rotating member support member moves linearly toward the downstream side in the moving direction of the opening / closing member, and the rotating member support member moves toward the other rotating member. In comparison, it is possible to reduce the operation load required for closing the opening / closing member.
According to the invention of claim 6, the pair of rotating members can be separated in conjunction with the opening operation of the opening / closing member, or the contact pressure of the pair of rotating members can be reduced. .
According to the seventh aspect of the present invention, it is possible to suppress the separation of one rotating member from the other rotating member as compared to the case where the movement of the rotating member supporting member is not restricted by the other rotating member.
According to invention of Claim 8, the operation load required for closing operation of an opening-and-closing member can be reduced compared with the case where a to-be-pressed part is not inclined with respect to the advancing direction of a press part .

1 is a diagram illustrating an overall configuration of an image forming apparatus. It is the figure which expanded and showed the resist roll and the cover member. It is the figure which expanded and showed the resist roll and the cover member. (A)-(D) are the figures which showed the motion of each part when a cover member is opened by a user. (A)-(C) are the figures which showed the motion of each part when a cover member is closed by a user. (A)-(D) are the figures which showed the motion of each part when a cover member is closed in the state where a to-be-pressed member is located on the movement path | route of a pressing member.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a diagram showing an overall configuration of an image forming apparatus 1 to which the present invention is applied, and shows a so-called tandem type digital color printer.
The image forming apparatus 1 includes an image forming unit 10 that forms an image corresponding to gradation data of each color, and a paper transport mechanism 40 that transports a paper P that is an example of a recording material.
In addition, an image processing unit (not shown) that is connected to a personal computer (PC), a document reading device, or the like (not shown) and performs image processing on received image data is provided. Furthermore, a control unit (not shown) for controlling the operation of each unit (each device) is provided.

The image forming unit 10 includes four image forming units 11Y, 11M, yellow (Y), magenta (M), cyan (C), and black (K) arranged in parallel at intervals in the horizontal direction. 11C and 11K are provided.
In addition, a transfer unit 20 is provided to which toner images of respective colors formed on the photosensitive drums 12 of the image forming units 11Y, 11M, 11C, and 11K are transferred.

Further, a laser exposure device 30 is provided for irradiating the photosensitive drum 12 provided in the image forming units 11Y, 11M, 11C, and 11K with laser light.
A fixing device 29 is provided for fixing the toner image secondarily transferred from the transfer unit 20 onto the paper P onto the paper P using heat and pressure.
Further, toner cartridges 16Yc, 16Mc, 16Cc, and 16Kc that contain toner supplied to the image forming units 11Y, 11M, 11C, and 11K are provided.

The transfer unit 20 includes a drive roll 22 that drives the intermediate transfer belt 21, a tension roll 23 that applies a certain tension to the intermediate transfer belt 21, and a backup that is used to transfer the toner image on the intermediate transfer belt 21 to the paper P. A belt cleaner 25 that removes toner and the like existing on the roll 24 and the intermediate transfer belt 21 is provided.
The intermediate transfer belt 21 is wound around a drive roll 22, a tension roll 23 and a backup roll 24, and is moved by the drive roll 22 in the direction indicated by the arrow.

The laser exposure device 30 includes a polygon mirror 31 that deflects and scans laser light (LB-Y, LB-M, LB-C, LB-K) emitted from the laser diode, in addition to a laser diode and a modulator (not shown). ing.
The paper transport mechanism 40 includes a stacking unit 41 that stacks the paper P, a feed roll 42 that feeds the paper P of the stacking unit 41, a feed roll 43 that separates and transports the paper P fed by the feed roll 42 one by one, and a feed A transport path 44 that transports the paper P separated one by one by the roll 43 toward the secondary transfer position T is provided.

Further, the paper transport mechanism 40 is provided with a registration roll 45 that transports the paper P on the transport path 44 toward the secondary transfer position T in time.
Further, at the secondary transfer position T, a secondary transfer roll 46 that is provided in pressure contact with the backup roll 24 and transfers the toner image on the intermediate transfer belt 21 onto the paper P is provided.
Further, a discharge roll 47 for discharging the paper P on which the toner image is fixed by the fixing device 29 to the outside of the apparatus, and a stacking unit 48 for stacking the paper P discharged by the discharge roll 47 are provided.

Furthermore, in this embodiment, 10 A of apparatus main bodies which support each part and each apparatus are provided. Further, a cover member 10B is provided at a side portion of the apparatus main body 10A and functions as an opening / closing member that can be opened and closed with respect to the apparatus main body 10A.
The cover member 10B rotates around a rotation fulcrum 10C provided at the lower end in the drawing.

  2 and 3 are enlarged views of the resist roll 45 and the cover member 10B. 2 shows a state in which the cover member 10B is closed, and FIG. 3 shows a state in which the cover member 10B is opened.

As shown in FIG. 3, the registration roll 45 is provided with a drive roll 45A that is rotated by a motor (not shown). Further, a driven roll 45B is provided that is disposed in contact with the drive roll 45A and rotates by receiving a driving force from the drive roll 45A.
The resist roll 45 is thus constituted by a pair of rotating members (a driving roll 45A and a driven roll 45B).

  Here, in this embodiment, as shown in FIG. 3, after the cover member 10B is opened, the drive roll 45A and the driven roll 45B are not attached to the cover member 10B but remain on the apparatus main body 10A side. Thereby, for example, the alignment accuracy between the drive roll 45A and the driven roll 45B is easily maintained as compared with the configuration in which the driven roll 45B moves along with the cover member 10B.

Furthermore, in this embodiment, a support unit 50 is provided. The support unit 50 functions as a rotation member moving unit and a rotation member support member, and supports (follows) the driven roll 45B and moves (displaces) the driven roll 45B.
Further, a coil spring 51 that biases the driven roll 45B toward the drive roll 45A is provided. The coil spring 51 is accommodated in the support unit 50.

Further, a support shaft 52 that rotatably supports the support unit 50 is provided. In the present embodiment, the support unit 50 rotates around the support shaft 52.
Furthermore, in this embodiment, since the driven roll 45B is attached to the support unit 50, when the support unit 50 rotates about the support shaft 52, the driven roll 45B causes the support shaft 52 to swing around the support shaft 52. Swing as.
The support shaft 52 is attached to the apparatus main body 10A. The support shaft 52 is disposed on the opposite side of the drive roll 45A with the driven roll 45B interposed therebetween.

As shown in FIG. 3, the support unit 50 includes an upper regulating portion 50A that is positioned above the driven roll 45B and regulates the upward movement of the driven roll 45B, and is positioned below the driven roll 45B and the driven roll 45B. A lower restricting portion 50B is provided for restricting the downward movement of.
Further, the support unit 50 is provided with a connection portion 50C that is located on the cover member 10B side and connects the upper restriction portion 50A and the lower restriction portion 50B.

Here, the coil spring 51 is disposed between the connecting portion 50C and the driven roll 45B. Furthermore, in the present embodiment, a protruding portion 50D that protrudes downward from the tip of the upper restricting portion 50A is provided.
The protrusion 50D comes into contact with the drive roll 45A when the cover member 10B is closed (in the figure, the protrusion 50D is positioned on the left side of the drive roll 45A). Thereby, in this embodiment, the movement of the support unit 50 (movement toward the right in the figure) is restricted, and the movement of the driven roll 45B in the direction away from the drive roll 45A is restricted.

Furthermore, in this embodiment, a pressed member 60 is provided.
When the cover member 10B is opened, the pressed member 60 is pressed in one direction (right direction in the figure) by the cover member 10B (its pressing member 10E) (details will be described later). The pressed member 60 is rotatably provided and rotates around the support shaft 52.

Further, a biasing member (not shown) for biasing the pressed member 60 in the clockwise direction in the drawing is provided. Further, a pressed member 60 that tries to rotate in the clockwise direction comes into contact, and a restricting portion (not shown) that restricts the rotation of the pressed member 60 is provided.
In the present embodiment, the pressed member 60 comes to rest in the state shown in FIG. 3 when the pressed member 60 abuts against the restricting portion. Further, the pressed member 60 can rotate counterclockwise around the support shaft 52. When the pressed member 60 rotates counterclockwise, the pressed member 60 falls down.

A protruding piece 10D protruding from the inner surface is provided on the inner surface of the cover member 10B. Further, a pressing member 10E (stud) (pressing portion) is provided that is attached to the protruding piece 10D and presses the support unit 50 when the cover member 10B is opened and closed. The pressing member 10E is constituted by a columnar member that is rotatably provided.
The support unit 50, the protruding piece 10D, and the like are provided at both one end and the other end in the axial direction of the resist roll 45.

With reference to FIG. 2, the state of each part when the cover member 10B is closed will be described.
When the cover member 10 </ b> B is closed, the drive roll 45 </ b> A is disposed in the support unit 50. In this case, the protrusion 50D is located on the left side in the drawing with respect to the drive roll 45A, and the drive roll 45A is sandwiched between the protrusion 50D and the driven roll 45B.

In addition, in a state where the cover member 10B is closed, the driven roll 45B is brought close to the drive roll 45A by the protrusion 50D, and the driven roll 45B is pressed against the drive roll 45A.
When the cover member 10B is closed, the protrusion 50D is positioned on the left side of the drive roll 45A in the drawing, and the protrusion 50D contacts the drive roll 45A. Thereby, in this embodiment, the movement of the support unit 50 (movement toward the right in the figure) is restricted, and the movement of the driven roll 45B in the direction away from the drive roll 45A is restricted.

4A to 4D are views showing the movement of each part when the cover member 10B is opened by the user.
When the opening operation of the cover member 10B is performed, first, a part (for example, the upper end) of the cover member 10B shown in FIG. 4A is gripped by the user, and this part is pulled in the right direction in the drawing. It is done. Thereby, as shown to FIG. 4 (B), the movement of the cover member 10B is started.
When the cover member 10B is opened by a predetermined amount, the pressing member 10E hits the pressed member 60 as shown in FIG. Thereby, as shown in FIGS. 4C and 4D, the support unit 50 rotates in the clockwise direction.

When the support unit 50 rotates in the clockwise direction, as shown in FIG. 4D, the pressing member 10E passes above the pressed member 60, and the pressed member 60 and the pressing member 10E are separated from each other. Further, the protrusion 50D is detached from the side of the drive roll 45A. Further, the driven roll 45B pressed by the coil spring 51 does not go toward the drive roll 45A but goes diagonally upward (in the figure, diagonally left upward).
Thereby, in this embodiment, the contact pressure between 45 A of drive rolls and the follower roll 45B falls.

Here, the paper P may be clogged on the registration roll 45 or on the upstream side or the downstream side of the registration roll 45. In this case, the paper P needs to be removed.
At this time, as described above, when the contact pressure between the driving roll 45A and the driven roll 45B decreases, the paper P can be easily removed.
In the present embodiment, the case where the contact pressure between the driving roll 45A and the driven roll 45B is reduced has been described as an example, but the driving roll 45A and the driven roll 45B may be separated from each other.

Next, the movement of each part during the closing operation of the cover member 10B will be described.
FIGS. 5A to 5C are views showing the movement of each part when the cover member 10B is closed by the user.
During the closing operation of the cover member 10B, a part of the cover member 10B is pressed by the user. Thus, first, the pressing member 10E (see FIG. 4D) passes above the pressed member 60 (see FIG. 4D). In other words, when the cover member 10B is closed, the pressed member 60 is located at a location deviated from the movement path of the pressing member 10E, and the pressing member 10E passes by the side of the pressed member 60.

  Thereafter, when the cover member 10B is closed by a predetermined amount, as shown in FIG. 5A, the pressing member 10E comes into contact with the upper surface of the upper restricting portion 50A, and the upper surface is pressed by the pressing member 10E. The Thereby, the rotation of the support unit 50 (rotation in the counterclockwise direction in the drawing) is started. In the present specification, the upper surface of the upper restricting portion 50A is hereinafter referred to as a pressed surface 50F.

When the cover member 10B is further closed, as shown in FIG. 5B, the support unit 50 further rotates, and the protrusion 50D is directed to the left side of the drive roll 45A.
When the cover member 10B is further closed, as shown in FIG. 5C, the protrusion 50D is positioned on the left side of the drive roll 45A.

  Here, in this embodiment, when the cover member 10B is closed and the pressing member 10E presses the pressed surface 50F, as shown in FIGS. 5A and 5B, the pressing member 10E moves in the traveling direction 5A. On the other hand, the pressed surface 50F is inclined.

Thereby, in this embodiment, as shown to the code | symbol RY and code | symbol RX of FIG. 5 (B), among the loads which the cover member 10B receives from the support unit 50 side, the load which presses the cover member 10B upwards ( (See symbol RY) increases, and the load (see symbol RX) for pressing the cover member 10B in the horizontal direction decreases.
Thereby, in this embodiment, the operation load required for closing operation of the cover member 10B becomes small. In other words, in the present embodiment, the cover member 10B is pressed in the horizontal direction to close the cover member 10B, so that the operation load required for the closing operation of the cover member 10B is reduced.

  Furthermore, in this embodiment, when the cover member 10B is closed, the driven roll 45B is linearly moved toward the drive roll 45A to press the driven roll 45B against the drive roll 45A. Instead, the driven roll 45B is moved along the tangential direction of the outer peripheral surface of the drive roll 45A, and the driven roll 45B is pressed against the drive roll 45A. In such a case, the amount of compression of the coil spring 51 (see FIG. 2) is reduced, and also from this point, the operation load required for the closing operation of the cover member 10B is reduced.

6A to 6D are views showing the movement of each part when the cover member 10B is closed in a state where the pressed member 60 is positioned on the movement path of the pressing member 10E.
In the present embodiment, after the user performs the opening operation of the cover member 10B, for example, the user may manually operate the support unit 50. In this case, as shown in FIG. 6A, the pressed member 60 may be positioned on the moving path of the pressing member 10E.

  When the closing operation of the cover member 10B is started, as shown in FIG. 6B, the pressed member 60 is pressed by the pressing member 10E and rotates counterclockwise. It will fall to the left in the figure. Thereby, the pressing member 10 </ b> E passes through the pressed member 60.

  Then, when the cover member 10B is completely closed, as shown in FIG. 6C, the pressing member 10E reaches a location beyond the pressed member 60, and the pressing of the pressed member 60 by the pressing member 10E is released. The Thereby, as shown in FIG. 6D, the pressed member 60 returns to the original state (returns to the standing state).

DESCRIPTION OF SYMBOLS 1 ... Image forming apparatus, 10 ... Image forming part, 10A ... Apparatus main body, 10B ... Cover member, 10E ... Press member, 45 ... Registration roll, 45A ... Drive roll, 45B ... Driven roll, 50 ... Support unit, 50F ... Covered Press surface, 60 ... pressed member, P ... paper

Claims (8)

An apparatus body having an opening ;
An image forming unit for forming an image on a recording material;
Openably provided to the apparatus main body, and a closing member that have a moving portion that moves when closed against the apparatus main body, closing the opening,
A pair of rotating members used for transporting a recording material and configured by an opening-side rotating member positioned on the opening side and an opposite-side rotating member positioned on the opposite side of the opening with the opening-side rotating member interposed therebetween. A pair of rotating members provided to be separable or to reduce the contact pressure;
The contact portion of the moving portion provided on the opening / closing member that is provided to be rotatable around the rotation axis contacts and is pressed by the contact portion, and the contact portion is in contact with the contact portion. The pair of rotating members having a pressed surface that is arranged to be inclined with respect to the moving direction and moving at least one rotating member using a load received from the moving portion on the pressed surface and separated from each other Or rotating member moving means for increasing the contact pressure of the pair of rotating members,
Equipped with a,
When the opening / closing member is closed, the position of the pressed surface and the rotation shaft in the direction in which the plane passing through the axis of the opposite rotation member and the axis of the opening rotation member extends , The pressed surface is located on the side farther from the opening than the rotating shaft,
The upper surface of the rotating member moving means, said image forming apparatus that has pressed surface is provided. One rotating member of the pair of rotating members is provided to be swingable about the rotating shaft,
The said rotating member moving means moves the said one rotating member centering | focusing on the said rotating shaft, makes the said one pair of spaced apart rotating member contact, or raises the said contact pressure. Image forming apparatus.   When the opening / closing member is opened, the rotating member moving means receives a driving force from the opening / closing member side and moves at least one of the rotating members to separate the pair of rotating members or The image forming apparatus according to claim 1, wherein the contact pressure is reduced. The rotating member moving means is provided with a pressed member that is pressed in one direction by the opening and closing member when the opening and closing member is opened. The rotating member moving means is configured to open the opening and closing member. When made, the driving force is received by the pressed member,
The image forming apparatus according to claim 3, wherein the pressed member is provided so as to be displaceable so as to fall in the opposite direction when pressed in the opposite direction to the one direction. An apparatus body having an opening ;
An image forming unit for forming an image on a recording material;
Openably provided to the apparatus main body, and a closing member that have a moving portion that moves when closed against the apparatus main body, closing the opening,
A pair of rotating members used for transporting a recording material and configured by an opening-side rotating member positioned on the opening side and an opposite-side rotating member positioned on the opposite side of the opening with the opening-side rotating member interposed therebetween. A pair of rotating members provided to be separable or to reduce the contact pressure;
Rotatably provided around a rotation shaft, one of the rotary member is supported, open the on-off the mobile unit content more pressed portion which member moves along with the closing of the pair of rotary members Is rotated by being pressed, and the rotating member support member that brings the one rotating member into contact with the other rotating member or increases the contact pressure between the one rotating member and the other rotating member,
Equipped with a,
When the opening / closing member is closed, the position of the pressed portion and the rotation shaft in the direction in which the plane passing through the axis of the opposite rotation member and the axis of the opening rotation member extends the when compared, the image forming apparatus the pressed portion on the side remote from the opening than the rotary shaft you position.   The rotating member support member is rotated by being pressed by the opening / closing member when the closed opening / closing member is opened, and separates the one rotating member from the other rotating member or the one rotating member and the rotating member. The image forming apparatus according to claim 5, wherein the contact pressure with the other rotating member is reduced. The device body;
An image forming unit for forming an image on a recording material;
An opening / closing member provided to be openable / closable with respect to the apparatus main body;
A pair of rotating members used for conveying the recording material, the pair of rotating members provided so as to be separable or to reduce the contact pressure;
It is provided so as to be rotatable around a predetermined location, supports one rotating member of the pair of rotating members, and the pressed portion is pressed by the opening / closing member when the opened opening / closing member is closed. A rotating member support member that rotates and is configured to contact the one rotating member with the other rotating member or to increase the contact pressure between the one rotating member and the other rotating member;
With
In a state where the opening / closing member is closed, a portion of the rotating member support member that is different from the pressed portion is in contact with the other rotating member, and the rotating member is supported by the other rotating member. movement of the members is restricted by the regulations, the image forming apparatus movement of the one rotary member in the direction away from the other rotary member is restricted. Of the rotating member support member, the pressed portion that is pressed by the opening and closing member that is closed is formed in a planar shape, and is pressed by a predetermined pressing portion of the opening and closing member,
Wherein to the traveling direction of the pressed portion when the pressed portion is contact with the pressed portion, the image forming apparatus according to claim 7, characterized in that the pressed portion is inclined.

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