WO2016078469A1

WO2016078469A1 - Operation panel for imaging apparatus and imaging apparatus

Info

Publication number: WO2016078469A1
Application number: PCT/CN2015/089716
Authority: WO
Inventors: 王长生; 王超
Original assignee: 珠海奔图电子有限公司
Priority date: 2014-11-19
Filing date: 2015-09-16
Publication date: 2016-05-26
Also published as: CN204278773U

Abstract

Disclosed are an operation panel for an imaging apparatus and an imaging apparatus, wherein the imaging apparatus comprises a panel main body (101), the panel main body (101) being provided with a first hinging piece (102) for being hinged with a casing (201) of the imaging apparatus; a positioning device (103), a first end of the positioning device (103) is arranged in a sliding mode in a guiding hole (202) of the casing (201) of the imaging apparatus, the first end of the positioning device (103) is provided with a clamping groove (104), a second end of the positioning device (103) is hinged with the panel main body (101) via a second hinging piece (105) so as to enable the positioning device (103) to rotate relative to the panel main body (101) in the opening direction of the clamping groove (104); and an elastic device (106), arranged between the positioning device (103) and the panel main body (101), and the elastic device (106) is used to apply a force to the positioning device (103) so as to enable the clamping groove (104) to be clamped on a hole wall (203) of the guiding hole (202). By means of the structure used by the imaging apparatus, the information display visibility and use convenience of the operation panel can be improved.

Description

Operation panel and imaging device for imaging device

Technical field

The present invention relates to imaging device technology, and more particularly to an operation panel and an imaging device for an imaging device.

Background technique

In recent years, with the rapid development of technology in the printing industry, the functions of printers have become more sophisticated and diverse.

An operation panel is provided on the main body of the existing copying machine and the printer device, and the user can input an instruction to execute a task through the operation panel.

Due to the positional relationship between the user's viewing angle and the indoor lighting device, the operation panel may generate light reflection, thereby reducing the visibility of the display information of the operation panel, which is inconvenient for the user.

Summary of the invention

The present invention provides an operation panel and an image forming apparatus for an image forming apparatus to improve visibility of the display information of the operation panel and convenience of use.

The invention provides an operation panel for an image forming apparatus, comprising:

a panel body, the panel body being provided with a first hinge for articulating with a housing of the image forming apparatus;

a positioning device, the first end of the positioning device is configured to be slidably disposed in a guiding hole of the housing of the image forming apparatus, the first end of the positioning device is provided with a card slot, and the second end of the positioning device passes a second hinge member is hinged to the panel body to enable the positioning device to rotate relative to the panel body along an opening direction of the card slot;

The elastic device is disposed between the positioning device and the panel body, and the elastic device is configured to apply a force to the positioning device to enable the card slot to be clamped on the hole wall of the guiding hole.

The image forming apparatus of the image forming apparatus, preferably, further comprising a limiting device, the limit a first end of the device is connected to the back surface of the panel body, a second end of the limiting device is provided with a hook, and a sliding rail is disposed between the hook and the first end of the limiting device. The sliding rail has a set length; the positioning device is provided with a sliding hole, and the positioning device is sleeved on the sliding rail through the sliding hole, and the sliding hole is used for sliding on the sliding rail. The hooks are used to limit the slide holes within the range of the slide rails.

The image forming apparatus uses an operation panel, preferably, the first hinge is disposed at a first end of the panel body, and the second hinge is disposed at a second end of the panel body, the second a direction in which the hinge is disposed in parallel with a direction in which the first hinge is disposed; the limiting device is disposed between the first end and the second end of the panel body; the first end of the elastic device is a positioning device is coupled, the second end of the elastic device being disposed between the limiting device and the second hinge and coupled to a back surface of the panel body, the elastic device for applying to the positioning device The force that faces away from the panel body.

The image forming apparatus uses an operation panel, preferably, the elastic device is disposed adjacent to the second hinge; the positioning device is provided with a convex portion on a plane facing away from the panel body, the convex portion The position corresponds to the position of the elastic means, and the surface of the boss is provided with a non-slip material.

The image forming apparatus uses an operation panel, and preferably includes a resisting member, the first end of the resisting member is connected to the limiting device, and the second end of the resisting member protrudes from the limiting device The second end of the resisting member has a set distance between the second end and the first end for abutting against the housing of the image forming apparatus.

The image forming apparatus uses an operation panel. Preferably, the first hinge member is a pin disposed on two sides of the panel body, and the pin shaft is provided with a limit protrusion at an end adjacent to the panel body. The limit protrusion has a set distance from an end surface of the panel body facing the panel body.

The image forming apparatus uses an operation panel. Preferably, the second hinge member is a rotating shaft disposed on a back surface of the panel body, the rotating shaft has an oblong cross section, and the long circular length is vertical. a rear end of the panel body; a second end of the positioning device is provided with a bearing, one side of the bearing is axially provided with a socket, the width of the socket is equal to the width of the oblong, the socket The opening direction is disposed along the length of the positioning device and away from the first end of the positioning device.

The present invention provides an image forming apparatus including a housing on which an operation panel for an image forming apparatus provided by the present invention is provided.

In the image forming apparatus, preferably, the housing is provided with a positioning member at the guiding hole, the positioning member includes a chuck, the positioning member is connected with an elastic member, and the elastic member and the housing Connecting, the elastic member is telescopically disposed in a direction parallel to a plane of the guiding hole, and the elastic member is configured to apply force to the positioning member to cause the chuck to abut the surface of the positioning device; The surface of the positioning device is provided with a holding member for holding the card holder to position the positioning device.

In the image forming apparatus, preferably, the holding member is a boss, the boss includes a first inclined surface and a second inclined surface; the first inclined surface is disposed toward the first end of the positioning device, the first The two inclined faces are disposed toward the second end of the positioning device, and the inclination of the second inclined surface is smaller than the inclination of the first inclined surface.

Based on the above, the image forming apparatus of the present invention provides an operation panel, the panel body is rotatable relative to the housing of the image forming apparatus in a vertical plane, and the panel body includes a positioning device, and the first end of the positioning device is slidably disposed on the image forming apparatus housing In the guiding hole of the body, the first end of the positioning device is provided with a card slot, and the positioning device is rotatable relative to the panel body along the opening direction of the card slot, and an elastic device is further disposed between the positioning device and the panel body, in use When the panel body rotates relative to the housing of the image forming apparatus, the positioning device is driven to slide in the guiding hole of the image forming apparatus housing. When the card slot reaches the hole wall of the guiding hole, the elastic device can apply force to the positioning device. The positioning device rotates relative to the panel body along the opening direction of the card slot, so that the card slot is clamped on the hole wall of the guiding hole by the elastic device, thereby positioning the panel body, thereby ensuring that the user is using the panel. Accuracy when the main body inputs information; when it is necessary to release the positioning, it is only necessary to apply a force in the direction of the opening facing the card slot to the positioning device to make the card slot Open the hole wall of the guide hole, and then rotate the panel body, which is convenient to use and realizes the change of the angle between the operation panel and the imaging device. The user can adjust the angle of the operation panel as needed to reduce the light reflection of the operation panel. The effect of improving the visibility of the information displayed on the operation panel and the convenience of use.

DRAWINGS

1 is a schematic structural diagram of an image forming apparatus according to an embodiment of the present invention;

2 is an exploded view showing an operation panel of an image forming apparatus according to an embodiment of the present invention;

3 is a schematic diagram of an operation panel of an image forming apparatus in an initial position according to an embodiment of the present invention;

4 is a schematic diagram of positioning of an operation panel of an image forming apparatus by using a positioning device according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another imaging device according to an embodiment of the present disclosure;

Figure 6 is a schematic structural view of the chuck and the elastic member of Figure 5;

FIG. 7 is a schematic diagram of another imaging device for positioning by using a holding member and a positioning member according to an embodiment of the present invention.

Reference mark:

101: panel body; 102: first hinge; 103: positioning device;

104: card slot; 105: second hinge; 106: elastic device;

107: limit device; 108: hook; 109: slide rail;

110: a sliding hole; 111: a raised portion; 112: a resisting member;

113: limit bump; 114: bearing; 115; socket;

116: holding member; 117: first inclined surface; 118: second inclined surface;

201: housing; 202: guiding hole; 203: hole wall;

204: chuck; 205: elastic member; 206: positioning member.

detailed description

1 is a schematic structural diagram of an image forming apparatus according to an embodiment of the present invention, FIG. 2 is an exploded view of an operation panel for an image forming apparatus according to an embodiment of the present invention, and FIG. 3 is an image forming according to an embodiment of the present invention. FIG. 4 is a schematic diagram of positioning of an operation panel of an image forming apparatus by using a positioning device according to an embodiment of the present invention.

Referring to Figures 1-4, the present invention provides an operation panel for an image forming apparatus, comprising: a panel main body 101, the panel main body 101 is provided with a first hinge member 102, and the first hinge member 102 is used for an image forming apparatus The housing 201 is hinged; a positioning device 103, the first end of the positioning device 103 is configured to be slidably disposed in the guiding hole 202 of the housing 201 of the image forming apparatus, the positioning The first end of the device 103 is provided with a card slot 104, and the second end of the positioning device 103 is hinged with the panel body 101 through the second hinge 105 so that the positioning device 103 can be along the card slot 104. The opening direction is rotated relative to the panel body 101; the elastic device 106 is disposed between the positioning device 103 and the panel body 101, and the elastic device 106 is configured to apply force to the positioning device 103 to The card slot 104 can be held on the hole wall 203 of the guiding hole 202.

In this embodiment, during use, when the panel main body 101 is rotated relative to the housing 201 of the image forming apparatus, the positioning device 103 is driven to slide in the guiding hole 202 of the housing 201 of the image forming apparatus, and when the card slot 104 reaches the guide When the hole wall 203 of the hole 202 is located, since the elastic device 106 can apply a force to the positioning device 103 to rotate the positioning device 103 relative to the panel body 101 in the opening direction of the card slot 104, the card slot is acted upon by the elastic device 106. The card is held on the hole wall 203 of the guide hole 202, thereby positioning the panel body 101, thereby ensuring the accuracy of the user when inputting information by the panel body 101; when the positioning needs to be released, only the positioning device 103 needs to be applied. The force facing away from the opening direction of the card slot 104 causes the card slot 104 to leave the hole wall 203 of the guide hole 202, and then the panel body 101 can be rotated, which is convenient to use and realizes a change in the angle between the operation panel and the image forming apparatus, and the user The angle of the operation panel can be adjusted as needed to reduce the influence of the light reflection of the operation panel on the display information, and the visibility of the display information of the operation panel and the convenience of use are improved.

In this embodiment, preferably, the operation panel further includes a limiting device 107. The first end of the limiting device 107 is connected to the back surface of the panel body 101, and the second end of the limiting device 107 is provided. a hook 108 is disposed between the hook 108 and the first end of the limiting device 107. The sliding rail 109 has a set length; the positioning device 103 is provided with a sliding hole 110. The positioning device 103 is sleeved on the sliding rail 109 through the sliding hole 110, and the sliding hole 110 is used for sliding on the sliding rail 109, and the hook 108 is used to limit the sliding hole 110. Within the scope of the slide rail 109. Since the hook 108 limits the sliding hole 110 within the range of the sliding rail 109, the rotation range of the positioning device 103 with respect to the panel main body 101 is limited, and the biasing direction of the elastic device 106 due to the excessive rotation of the positioning device 103 is avoided. Too many changes affect the positioning effect of the positioning device 103 to improve the reliability of the operation panel. The length of the slide rail 109 can be set according to the actual situation to ensure that the card slot 104 can be clamped and can leave the guiding hole 202. Hole wall 203.

In this embodiment, preferably, the first hinge member 102 is disposed at the first end of the panel body 101, and the second hinge member 105 is disposed at the second end of the panel body 101, and the second hinge member 105 is The setting direction is parallel to the direction in which the first hinge member 102 is disposed; the limiting device 107 is disposed between the first end and the second end of the panel body 101; the first end of the elastic device 106 is The positioning device 103 is connected, and the second end of the elastic device 106 is disposed between the limiting device 107 and the second hinge member 105 and connected to the back surface of the panel body 101. A force directed in the direction of the panel body 101 is applied to the positioning device 103. Since the second hinge 105 is disposed at the second end of the panel body 101, and the direction of the second hinge 105 is parallel to the direction in which the first hinge 102 is disposed, the plane of the positioning device 103 about the second hinge 105 is rotated. The plane of the panel main body 101 rotating around the first hinge member 102 is parallel, so that the force between the positioning device 103 and the panel main body 101 is more reasonable, and the panel main body 101 is prevented from being deflected due to the force on one side, and at the same time, the card is caused. The groove wall 203 of the groove 104 holding the guide hole 202 is more reliable. In addition, since the elastic device 106 is used to apply a force in the direction of the panel main body 101 to the positioning device 103, when it is necessary to release the positioning of the panel main body 101, it is only necessary to apply a force toward the positioning device 103 in the direction of the panel main body 101, thereby improving The convenience of use and the comfort of the user.

Of course, the direction in which the second hinge member 105 is disposed may not be parallel to the direction in which the first hinge member 102 is disposed, and the elastic device 106 may also apply a force toward the positioning device 103 toward the panel body 101, and the limiting device 107, the second The positional relationship between the hinge member 105 and the elastic device 106 can also be changed, as long as the card slot 104 can be held and removed from the hole wall 203 of the guide hole 202, which is not specifically limited in the present invention.

In this embodiment, preferably, the elastic device 106 is disposed adjacent to the second hinge member 105; the positioning device 103 is provided with a convex portion 111 on a plane facing away from the panel main body 101, and the convex portion 111 The position corresponds to the position of the elastic device 106, and the surface of the convex portion 111 is provided with a non-slip material. Since the elastic device 106 is disposed adjacent to the second hinge member 105, and the position of the boss portion 111 corresponds to the position of the elastic device 106, when it is required to move the card slot 104 away from the hole wall 203 of the guide hole 202, the user only needs to The convex portion 111 can be pressed, and it is convenient to use, and the surface of the convex portion 111 is provided with a non-slip material, which can prevent the hand from slipping during the pressing process and improve the comfort of use.

In this embodiment, preferably, the operation panel further includes a resisting member 112, and the resisting member 112 The first end is connected to the limiting device 107, and the second end of the resisting member 112 protrudes from the second end of the limiting device 107, between the second end of the resisting member 112 and the first end There is a set distance for abutting against the housing 201 of the image forming apparatus. Thereby, the state in which the resisting member 112 is abutted against the casing 201 of the image forming apparatus can be set as the initial position of the panel main body 101, and when it is necessary to return the position-adjusted panel main body 101 to the initial position, it is only necessary to rotate the panel. The main body 101 can resist the resisting member 112 and the housing 201 of the image forming apparatus, thereby ensuring that the panel main body 101 can be accurately restored to the initial position, and also preventing the panel main body 101 from being rotated during the rotation of the panel main body 101. The two ends collide with the housing 201 of the image forming apparatus to cause damage.

In this embodiment, preferably, the first hinge member 102 is a pin disposed on two sides of the panel body 101, and the pin shaft is provided with a limiting protrusion 113 at an end adjacent to the panel body 101. The end surface of the bit protrusion 113 facing away from the panel main body 101 and the panel main body 101 have a set distance, and the limiting protrusion 113 is used for the hinge state of the first hinge member 102 and the housing 201 of the image forming apparatus. Next, the movement of the panel main body 101 in the axial direction of the pin shaft is restricted to improve the stability of the panel main body 101.

In this embodiment, preferably, the second hinge member 105 is a rotating shaft disposed on the back surface of the panel main body 101, the rotating shaft has an oblong cross section, and the long circular length direction is perpendicular to the panel. a rear end of the main body 101; a second end of the positioning device 103 is provided with a bearing 114, one side of the bearing 114 is axially provided with a socket 115, and the width of the socket 115 is equal to the width of the oblong shape. The opening direction of the socket 115 is disposed along the length direction of the positioning device 103 and facing away from the first end of the positioning device 103. Therefore, the connection of the bearing 114 and the second hinge member 105 can be completed by simply inserting the socket 115 on the second hinge member 105 along the length of the oblong shape, thereby facilitating the mounting and dismounting of the positioning device 103 and the panel body 101. Since the length direction of the oblong is perpendicular to the back surface of the panel main body 101, and the opening direction of the socket 115 is disposed along the length direction of the positioning device 103 and away from the first end of the positioning device 103, only when the positioning device 103 and the panel main body 101 are present When the back side is vertical, the positioning device 103 can be detached from the panel main body 101. Therefore, under the limitation of the limiting device 107, the positioning device 103 and the panel main body 101 are not separated during use, which increases the reliability of use. Sex.

The operation panel for the image forming apparatus provided by the invention has the advantages of simple structure, convenient assembly and cost Low, easy to operate, can give users a better operating experience.

An embodiment of the present invention provides an image forming apparatus including a housing 201 on which an operation panel for an image forming apparatus according to any embodiment of the present invention is provided.

In this embodiment, during use, when the panel body 101 is rotated relative to the housing 201 of the image forming apparatus, the positioning device 103 is caused to slide in the guiding hole 202 of the image forming apparatus housing 201, and when the card slot 104 reaches the guiding hole. At the hole wall 203 of the 202, since the elastic device 106 can apply a force to the positioning device 103 to rotate the positioning device 103 relative to the panel body 101 in the opening direction of the card slot 104, the card slot 104 is acted upon by the elastic device 106. The card body 101 is clamped on the hole wall 203 of the guiding hole 202 to position the panel body 101. When the positioning needs to be released, only the force in the direction of the opening facing the card slot 104 is applied to the positioning device 103, so that the card slot 104 leaves the guiding hole. The hole wall 203 of the 202, then the panel body 101 can be rotated, the use is convenient and the angle between the operation panel and the image forming device is changed, and the user can adjust the angle of the operation panel as needed to reduce the light reflection of the operation panel. The effect of improving the visibility of the information displayed on the operation panel and the convenience of use.

In this embodiment, preferably, the first end of the panel main body 101 is hinged to the side wall of the casing 201 by a horizontally disposed first hinge member 102, and the top end of the screen main body 101 is close to the panel main body 101. The first end is set. Since the panel main body 101 is disposed on the side wall of the casing 201, which facilitates the user to operate in a sitting position, the utility model can also facilitate the use of a special person such as a wheelchair user or a child. When the user stands up, only the second panel main body 101 is required. When the end is turned up, the information displayed by the panel main body 101 can be seen, which is convenient to use.

FIG. 5 is a schematic structural diagram of another image forming apparatus according to an embodiment of the present invention, FIG. 6 is a schematic structural view of the chuck and the elastic member of FIG. 5, and FIG. 7 is another image forming apparatus according to an embodiment of the present invention. Schematic diagram of positioning of the piece and the positioning member.

Referring to FIG. 5-7, in the embodiment, preferably, the housing 201 is provided with a positioning member 206 at the guiding hole 202. The positioning member 206 includes a chuck 204, and the positioning member 206 is connected with an elastic member. 205, the elastic member 205 is connected to the housing 201, and the elastic member 205 is telescopically disposed in a direction parallel to a plane of the guiding hole 202, and the elastic member 205 is used for applying force to the positioning member 206. The chuck 204 is disposed on the surface of the positioning device 103. The surface of the positioning device 103 is provided with a latching member 116 for holding the chuck 204 so that the positioning device 103 Positioning. During use, the user can place the panel body When the initial position is reversed, the positioning device 103 slides in the guiding hole 202. When the holding member 116 moves to the position of the chuck 204 and forms a catch with the chuck 204, the holding member 116 receives the chuck. The resistance of the panel is such that the panel body 101 is positioned; when the positioning needs to be released, the panel body 101 only needs to be biased to invert the panel body 101. Since the elastic member 205 can drive the card head 204 to expand and contract, the card head 204 can be removed from the card. The member 116 is held to return the panel main body 101 to the initial position. By setting the position of the positioning member 206 on the housing 201 and the position of the holding member 116 on the positioning device 103, the panel body 101 can be positioned when rotated to a set angle, thereby satisfying the user to the panel body 101. The requirement of multiple positioning angles further improves the convenience of use. Additionally, a plurality of retaining members 116 can be provided to provide the user with more angular positioning options.

In this embodiment, preferably, the holding member 116 is used to be engaged with the chuck 204 so that the panel body 101 forms an angle with the casing 201, and the angle of the angle is 30- 35 degrees. Thereby, the user can more easily observe the information displayed on the panel main body 101.

In this embodiment, preferably, the panel main body 101 is used for rotating in a vertical plane; the holding member 116 is a boss, and the boss includes a first inclined surface 117 and a second inclined surface 118; A slope 117 is disposed toward the first end of the positioning device 103, the second slope 118 is disposed toward the second end of the positioning device 103, and the inclination of the second slope 118 is smaller than the inclination of the first slope 117 degree. When the user flips the panel main body 101 from the initial position of the panel main body 101, the chuck 204 first passes through the second inclined surface 118 with a small light inclination, and then passes through the first inclined surface 117 with a large inclination, so that the chuck 204 is compared. It is easy to cross the second inclined surface 118 and realize positioning under the gravity of the panel main body 101 itself, but it is not easy to cross the first inclined surface 117 after positioning, so the positioning is reliable, and when the chuck 204 is at two inclined slopes with different inclinations At the time of the transition, a "beep" sound can be generated, thereby enabling the user to understand that the panel body 101 has been positioned by the "click" sound.

In this embodiment, preferably, the direction in which the elastic member 205 is disposed is parallel to the direction in which the second hinge member 105 is disposed. Thereby, the holding member 116 and the positioning member 206 can be conveniently disposed, and the holding member 116 and the positioning member 206 can be positioned reliably.

In this embodiment, preferably, the elastic member 205 is a torsion spring. Since the torsion spring does not easily cause radial bending, the positioning of the catch 116 and the positioning member 206 is more reliable. Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, and are not limited thereto; Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that the technical solutions described in the foregoing embodiments may be modified or equivalently substituted for some or all of the technical features. And the modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

An operation panel for an image forming apparatus, comprising:

a panel body, the panel body being provided with a first hinge for articulating with a housing of the image forming apparatus;

a positioning device, the first end of the positioning device is configured to be slidably disposed in a guiding hole of the housing of the image forming apparatus, the first end of the positioning device is provided with a card slot, and the second end of the positioning device passes a second hinge member is hinged to the panel body to enable the positioning device to rotate relative to the panel body along an opening direction of the card slot;

The elastic device is disposed between the positioning device and the panel body, and the elastic device is configured to apply a force to the positioning device to enable the card slot to be clamped on the hole wall of the guiding hole.
The operation panel for an image forming apparatus according to claim 1, further comprising a limiting device, wherein the first end of the limiting device is connected to a back surface of the panel body, and the second end of the limiting device a hook is disposed, and a sliding rail is disposed between the hook and the first end of the limiting device, and the sliding rail has a set length;

The positioning device is provided with a sliding hole, the positioning device is sleeved on the sliding rail through the sliding hole, the sliding hole is used for sliding on the sliding rail, and the hook is used for the The slide hole is limited to the range of the slide rail.
The operation panel for an image forming apparatus according to claim 2, wherein:

The first hinge is disposed at a first end of the panel body, the second hinge is disposed at a second end of the panel body, the second hinge is disposed in a direction and the first hinge The setting direction is parallel;

The limiting device is disposed between the first end and the second end of the panel body;

a first end of the elastic device is coupled to the positioning device, and a second end of the elastic device is disposed between the limiting device and the second hinge member and connected to a back surface of the panel body. The resilient means is adapted to apply a force to the positioning means in a direction away from the panel body.
The operation panel for an image forming apparatus according to claim 3, wherein:

The elastic device is disposed adjacent to the second hinge;

The positioning device is provided with a convex portion on a plane facing away from the panel body, the protrusion The position of the portion corresponds to the position of the elastic means, and the surface of the convex portion is provided with a non-slip material.
The operation panel for an image forming apparatus according to claim 2, further comprising a resisting member, the first end of the resisting member being connected to the limiting device, and the second end of the resisting member protruding And at a second end of the limiting device, the second end of the resisting member and the first end have a set distance for abutting against the housing of the image forming apparatus.
The operation panel for an image forming apparatus according to claim 3, wherein the first hinge member is a pin disposed on both sides of the panel body, and the pin shaft is provided at a limit near an end of the panel body a position bump having a set distance between an end surface of the limiting protrusion facing away from the panel body and the panel body.
The operation panel for an image forming apparatus according to claim 3, wherein:

The second hinge member is a rotating shaft disposed on a back surface of the panel body, the rotating shaft has an oblong cross section, and a longitudinal direction of the oblong shape is perpendicular to a back surface of the panel body;

a second end of the positioning device is provided with a bearing, one side of the bearing is axially provided with a socket, the width of the socket is equal to the width of the oblong shape, and the opening direction of the socket is along the positioning device The length direction is opposite to the first end of the positioning device.
An image forming apparatus comprising: a housing on which an operation panel for an image forming apparatus according to any one of claims 1 to 7 is provided.
The image forming apparatus according to claim 8, wherein:

The housing is provided with a positioning member at the guiding hole, the positioning member comprises a chuck, the positioning member is connected with an elastic member, and the elastic member is connected with the housing, and the elastic member is parallel to The guiding hole is disposed in a direction of a plane of the guide hole, and the elastic member is configured to apply a force to the positioning member to cause the chuck to abut the surface of the positioning device;

The surface of the positioning device is provided with a holding member for holding the card holder to position the positioning device.
The image forming apparatus according to claim 9, wherein:

The panel body is for rotating in a vertical plane;

The holding member is a boss, and the boss comprises a first inclined surface and a second inclined surface;

The first inclined surface is disposed toward the first end of the positioning device, the second inclined surface is disposed toward the second end of the positioning device, and the inclination of the second inclined surface is smaller than the first inclined surface Tilt.