JP2018126999A - Image forming apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image forming apparatus having more excellent responsiveness in short-range radio communication by reducing separation distance between an exterior cover and a substrate including an antenna for short-range radio communication as much as possible.SOLUTION: An image forming apparatus S includes an elastic member 25 which energizes a substrate unit 6 toward a top face cover 20 side and abuts the substrate unit on the top face cover 20. A clearance 3 for making the substrate unit 6 movable to a device frame 1 side when the top face cover 20 receives external force and is pressed to a body inner side of the image forming apparatus S is provided between the device frame 1 and the top face cover 20.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an image forming apparatus such as a copying machine, a printer, and a facsimile machine provided with a short-range wireless communication device.

  In recent years, there is an image forming apparatus including a communication unit that communicates with an external communication unit in a main body of the image forming apparatus. Patent Document 1 discloses a support structure for such a communication unit.

JP 2006-53477 A

  In addition, there is an image forming apparatus including a communication unit that performs short-distance wireless communication in order to enable communication with a mobile device or an ID card. FIG. 1 is a perspective view showing a configuration of an image forming apparatus having a short-range wireless communication function. 5 is a Y cross-sectional view of a comparative example viewed from the direction of arrow A in FIG. 1 in the image forming apparatus S shown in FIG. As shown in FIG. 1, a board unit 6 including a board 22 having an antenna for short-range wireless communication is disposed between a top cover 20 serving as an exterior cover and a metal device frame 1.

  In the comparative example shown in FIG. 5, a substrate 22 having an antenna for short-range wireless communication is fixed to a holding member 21 fixed to the apparatus frame 1. A separation distance L <b> 1 is provided from the lower surface 20 a serving as the inner peripheral surface of the top cover 20 to the transmission / reception unit for near field communication. The separation distance L1 prevents the top cover 20 and the substrate 22 having the antenna for short-distance wireless communication from coming into contact with each other even if the top cover 20 is deformed as a result of product transportation or external force by the user. Set to

  If the separation distance L1 shown in FIG. 5 is large, there may be a case where sufficient response of short-range wireless communication cannot be ensured. Therefore, in order to improve the response performance of near field communication, the separation distance L1 between the lower surface 20a of the top cover 20 shown in FIG. 5 and the upper surface 22a of the substrate 22 having the antenna for near field communication is set as much as possible. It needs to be small.

  In the comparative example shown in FIG. 5, a substrate 22 having an antenna for short-range wireless communication is fixed to a holding member 21 fixed to the apparatus frame 1. For this reason, if the top cover 20 deformed by an external force comes into contact with the substrate 22 having an antenna for short-range wireless communication, the substrate 22 may be damaged. Therefore, there is a problem that the separation distance L1 cannot be reduced.

  The present invention solves the above-mentioned problems, and the object of the present invention is to improve the short distance by minimizing the separation distance between the exterior cover and the substrate having the antenna for short-range wireless communication. An image forming apparatus having wireless communication responsiveness is provided.

  A typical configuration of an image forming apparatus according to the present invention for achieving the above object includes an apparatus frame, an exterior cover that covers the apparatus frame, and a short distance provided between the exterior cover and the apparatus frame. A substrate unit including a substrate having an antenna for wireless communication, and having an urging means for urging the substrate unit toward the exterior cover and abutting the exterior cover. And a gap between the apparatus frame and the exterior cover that allows the substrate unit to move toward the apparatus frame when the exterior cover receives an external force and is pushed to the inside of the main body of the image forming apparatus. Is provided.

  According to the above configuration, the distance between the substrate having the antenna for short-range wireless communication and the exterior cover can be reduced, and the short-range wireless communication performance with excellent response performance is obtained. Can be prevented from being damaged.

FIG. 3 is a perspective explanatory view illustrating a configuration of the image forming apparatus. It is plane explanatory drawing which shows the structure of the board | substrate which has an antenna for short-distance radio | wireless communication. FIG. 2A is a Y cross-sectional view showing a configuration viewed from the direction of arrow A in FIG. 1 in a state where an external force is not acting on the exterior cover of the first embodiment of the image forming apparatus according to the present invention. (B) is Y sectional drawing which shows the structure seen from the arrow A direction of FIG. 1 in the state which the external force acted on the exterior cover of 1st Embodiment. (A) is Y sectional drawing which shows the structure seen from the arrow A direction of FIG. 1 in the state in which the external force is not acting on the exterior cover of 2nd Embodiment of the image forming apparatus which concerns on this invention. (B) is Y sectional drawing which shows the structure seen from the arrow A direction of FIG. 1 in the state which the external force acted on the exterior cover of 2nd Embodiment. It is Y sectional drawing which shows the structure which looked at the comparative example from the arrow A direction of FIG.

  An embodiment of an image forming apparatus according to the present invention will be specifically described with reference to the drawings. It should be noted that the dimensions, materials, shapes, relative positions, and the like of the components described in the following embodiments are not intended to limit the scope of the present invention only to those unless otherwise specified.

[First Embodiment]
First, the configuration of the first embodiment of the image forming apparatus according to the present invention will be described with reference to FIGS. FIG. 1 is a perspective explanatory view showing an example of an electrophotographic image forming apparatus. FIG. 2 is an explanatory plan view showing a configuration of a substrate having an antenna for short-range wireless communication. FIG. 3A is a Y cross-sectional view showing the configuration viewed from the direction of arrow A in FIG. 1 in a state where no external force is applied to the exterior cover of the present embodiment. FIG. 3B is a Y cross-sectional view showing a configuration viewed from the direction of arrow A in FIG. 1 in a state where an external force is applied to the exterior cover of the present embodiment.

  The substrate 22 having the short-range wireless communication antenna 22b shown in FIG. 2 has the antenna 22b used when the image forming apparatus S shown in FIG. 1 performs short-range wireless communication. For example, the image forming apparatus S has a security authentication function. Then, the user uses an ID card having ID (Identification) identification information, a smartphone, or the like to hold it from the outside of the image forming apparatus S toward the board 22 having the antenna 22b for short-distance wireless communication. As a result, security authentication is performed, and only an authorized user can perform printing with the image forming apparatus S.

  The present embodiment is not limited to this security authentication purpose, and can be applied to the board unit 6 including the board 22 having the antenna 22b for short-distance wireless communication corresponding to various purposes.

  The substrate unit 6 including the substrate 22 having the short-range wireless communication antenna 22b is disposed inside the main body of the image forming apparatus S inside the top cover 20 serving as an exterior cover. The substrate 22 is wired to a controller board (control unit) (not shown) of the image forming apparatus S main body and is communicably connected to the image forming apparatus S main body.

  In the present embodiment, as shown in FIGS. 3A and 3B, the metal device frame 1 is covered with a top cover 20 serving as an exterior cover. The other end of the elastic member 25 serving as an urging means comprising a coil spring supported at one end by the device frame 1 is supported by being in contact with the lower surface 23 a of the holding member 23. The board unit 6 includes a holding member 23 that holds the board 22 having the antenna 22b for short-distance wireless communication. The elastic member 25 serving as the urging means urges the holding member 23.

  The substrate 22 and the holding member 23 that holds the substrate 22 by the extension force of the elastic member 25 are directed toward the abutting portion 24 provided on the lower surface 20a side, which is the inner peripheral surface side of the top cover 20, as shown in FIG. It is configured to be urged in the arrow Z direction of a) and (b).

  The top cover 20 serving as an exterior cover has an abutting portion 24 that projects toward the apparatus frame 1 side (apparatus frame side) and abuts the substrate unit 6. The elastic member 25 serving as an urging means urges the substrate unit 6 including the substrate 22 toward the top cover 20 side (exterior cover side) serving as an exterior cover and abuts against the top cover 20.

  In this embodiment, as shown in FIG. 3A, a board unit 6 including a board 22 having an antenna 22b for short-range wireless communication includes a top cover 20 serving as an exterior cover, and a metal device frame. 1 is arranged.

  A substrate 22 having an antenna 22b for short-range wireless communication is held by a holding portion provided on a holding member 23. The holding member 23 holding the substrate 22 becomes the top cover 20 side (exterior cover side) of FIG. 3A by the elastic member 25 serving as an urging means whose one end is locked and supported by the apparatus frame 1. It is biased in the direction of arrow Z.

  An abutting portion 24 that protrudes from the lower surface 20a serving as the inner wall surface of the top cover 20 and contacts the abuttable area 40 of the substrate 22 shown in FIG. 2 is provided. The abutting portion 24 is provided corresponding to the abuttable region 40 that is in a position where it does not come into contact with a through hole or an electronic element of the electronic circuit pattern provided on the substrate 22. Then, as shown in FIG. 3A, the abutable region 40 of the substrate 22 comes into contact with the abutting portion 24 provided to project from the lower surface 20a of the top cover 20, and FIG. ) In the arrow Z direction is determined.

  The holding member 23 of the present embodiment is provided with a fitting step portion 23 b having an L-shaped cross section corresponding to the side surface and the lower surface of the outer peripheral edge of the substrate 22. The substrate 22 is inserted into the fitting step portion 23b of the holding member 23 and positioned in the horizontal direction (left-right direction in FIG. 3A). Further, the substrate 22 is provided with through holes 22c and 22d, and a boss 23c and a claw portion 23d standing at the center of the holding member 23 are inserted into the through holes 22c and 22d. The upper surface 22a is locked. As a result, the substrate 22 is held and held by the holding member 23.

  The position of the substrate 22 held by the holding member 23 in the width direction shown in the left-right direction in FIG. 3A and in the depth direction from the front of the page in FIG. 3A is regulated as follows. The holding member 23 is regulated by projecting to the lower surface 20a side (inner wall surface side) of the top cover 20 and being guided by the guide surface 27a of the guide portion 27 formed on the four sides around the holding member 23.

  A predetermined gap 2 is provided between the guide portion 27 and the holding member 23. By providing this gap 2, as shown in FIG. 3B, an external force acts on the top cover 20, and the holding member 23 is retracted to the apparatus frame 1 side against the extension force of the elastic member 25. Even when tilted inward, the retracting operation of the holding member 23 is performed smoothly.

  The guide portion 27 has a guide surface 27a that is substantially perpendicular to the lower surface (inner wall surface) of the top cover 20. Furthermore, it has the taper surface 27b which has a predetermined angle at the front-end | tip part.

  The guide surface 27a of the guide portion 27 functions as a guide when the holding member 23 is movable, and the tapered surface 27b of the guide portion 27 functions as a guide when the top cover 20 is assembled.

  A substrate 22 having an antenna 22b for short-range wireless communication shown in FIG. 2 has a transmission / reception unit 31 for short-range wireless communication. An area in which the transmitting / receiving unit 31 and an electronic element (not shown), a through hole, and the like (not shown) are not disposed is an abutable area 40 that can be abutted by an abutting part 24 that projects from the lower surface 20a of the top cover 20. .

  As shown in FIGS. 3A and 3B, when the substrate 22 is in contact with the abutment portion 24, the abutment portion 24 abuts against the abutable region 40 of the substrate 22 shown in FIG.

  When the abuttable area 40 of the substrate 22 and the abutting portion 24 of the top cover 20 come into contact with each other, a gap 50 is generated between the upper surface 22a of the substrate 22 and the lower surface 20a of the top cover 20. Due to the gap 50, it is possible to prevent the transmitting / receiving unit 31 on the substrate 22, an electronic element (not shown), a through hole, and the like from contacting the lower surface of the top cover 20.

  As shown in FIG. 3A, in a state where the substrate unit 6 including the substrate 22 is urged against the abutting portion 24 by the elastic member 25, the gap between the upper surface 1a of the apparatus frame 1 and the lower surface 23a of the holding member 23 is obtained. Is provided with a gap 3 having a separation distance L4. As shown in FIG. 3B, the gap 3 is formed by an elastic member 25 so that when the top cover 20 receives an external force and is pushed to the inside of the main body of the image forming apparatus S, the pressing amount can be absorbed. The spring constant and the separation distance L4 are appropriately set.

  The gap 3 is provided between the apparatus frame 1 and the top cover 20 serving as an exterior cover. The gap 3 allows the substrate unit 6 including the substrate 22 having the antenna 22b for short-distance wireless communication when the top cover 20 receives an external force and is pushed to the inside of the main body of the image forming apparatus S to the device frame 1 side. It can be moved to the device frame side.

  A gap 3 having a separation distance L4 is provided between the upper surface 1a of the apparatus frame 1 and the lower surface 23a of the holding member 23. As a result, the holding member 23 can be retracted in the downward direction of FIG. 3A by the separation distance L4. The separation distance L4 is set to be larger than the maximum deformation amount of the top cover 20 that is assumed in the case of physical distribution or user use.

  A retaining portion 34 protrudes from the lower surface 23 a of the holding member 23. The retaining portion 34 is inserted into a through hole 1 b provided in the apparatus frame 1, and a claw portion provided at the tip is engaged with the lower surface 1 c of the apparatus frame 1 and is urged by the elastic member 25. Make sure to prevent it from coming off.

  The retaining portion 34 moves the holding member 23 so that the holding member 23 urged in the direction of arrow Z in FIG. 3A by the elastic member 25 does not pop out when the top cover 20 is not attached. It has a function to regulate. By having the retaining portion 34, the top cover 20 can be easily assembled after the elastic member 25 and the holding member 23 are assembled to the apparatus frame 1.

<Evacuation operation>
Next, with reference to FIGS. 3A and 3B, the retracting operation of the substrate 22 and the holding member 23 when an external force is applied to the top cover 20 in the present embodiment will be described.

  FIG. 3A is a Y cross-sectional view as seen from the direction of arrow A in FIG. 1 in a state where no external force is applied to the top cover 20. FIG. 3B shows an arrow A direction in FIG. 1 in a state where an external force acts on the top cover 20 in the direction of arrow K in FIG. 1 and the top cover 20 is deformed against the extension force of the elastic member 25. Y sectional drawing seen from FIG.

  As shown in FIG. 3A, the following is a state in which no external force is applied to the top cover 20. The substrate 22 held by the holding member 23 is urged in the direction of arrow Z in FIG. As a result, the abuttable area 40 is held in a state of abutting against the abutting portion 24 of the top cover 20.

  An external force in the direction of arrow K in FIG. 1 is applied to the top cover 20 by the user. Then, as shown in FIG. 3 (b), the top cover 20 is deformed so that the right side of FIG. 3 (b) is inclined in the direction of arrow K in FIG. 3 (b) against the extension force of the elastic member 25. . Following the deformation of the top cover 20, the abutting portion 24 is also displaced.

  In accordance with the displacement of the abutting portion 24, the substrate 22 and the holding member 23 that are in contact with the abutting portion 24 are also displaced as shown in FIG. While the holding member 23 is guided by the guide surface 27a formed by the inner wall surface of the guide portion 27 shown on the right side of FIG. 3B, the right side of FIG. 3B resists the extension force of the elastic member 25 as shown in FIG. ) To tilt in the direction of arrow K.

  As shown in FIG. 3A, a gap 3 having a separation distance L <b> 4 exists between the lower surface 23 a of the holding member 23 and the upper surface 1 a of the apparatus frame 1. As a result, the holding member 23 can be retracted to the apparatus frame 1 side (the lower side of FIG. 3B). As a result, no external force is directly applied to the transmitting / receiving unit 31 of the substrate 22. For this reason, the substrate 22, the transmission / reception unit 31 and the like are not damaged.

  Thereafter, when the user stops applying the external force in the direction of the arrow K in FIG. 3B to the top cover 20, the holding member 23, the substrate 22 and the top cover 20 are moved by the extension force of the elastic member 25 in FIG. The posture position shown in a) is restored.

  In the present embodiment, the distance between the substrate 22 and the holding member 23 (substrate unit 6) having the antenna 22b for short-distance wireless communication is between the lower surface 23a of the holding member 23 and the upper surface 1a of the apparatus frame 1. It was set as the structure which can evacuate using the clearance gap 3 of L4. As a result, the abutting portion 24 of the top cover 20 and the abuttable area 40 of the substrate 22 can be brought close to each other until they come into contact with each other. As a result, it is possible to realize an image forming apparatus S that is more sensitive than the comparative example shown in FIG. 5 and can be prevented from being damaged by an external force.

  In the present embodiment, an example in which the board unit 6 including the board 22 having the antenna 22b for short-distance wireless communication is disposed directly below the top cover 20 has been described. In addition, the same applies when an exterior cover other than the top cover 20, for example, a substrate unit 6 including a substrate 22 having a short-range wireless communication antenna 22 b is disposed between the right cover and the apparatus frame 1. The same effect can be obtained by configuring the above.

[Second Embodiment]
Next, the configuration of the second embodiment of the image forming apparatus according to the present invention will be described with reference to FIGS. In addition, what was comprised similarly to the said 1st Embodiment attaches | subjects the same member name even if the same code | symbol or a code | symbol differs, and abbreviate | omits description. FIG. 4A is a Y cross-sectional view showing a configuration viewed from the direction of arrow A in FIG. 1 in a state where no external force is applied to the exterior cover of the present embodiment. FIG. 4B is a Y cross-sectional view showing a configuration viewed from the direction of arrow A in FIG. 1 in a state where an external force is applied to the exterior cover of the present embodiment. Note that the configuration of the substrate 22 (substrate unit) having the antenna 22b for short-distance wireless communication is the same as that of the first embodiment, and a duplicate description is omitted.

  In the first embodiment, the substrate 22 having the antenna 22b for short-distance wireless communication is held by the holding member 23 biased by the elastic member 25. In this embodiment, the top cover 20 is provided by an elastic member 26 made of a leaf spring or the like as a biasing means for biasing the substrate 22 having the antenna 22b for short-distance wireless communication toward the top cover 20 side (exterior cover side). The structure is configured to abut against the abutting portion 24 projecting from the lower surface 20a.

  In this embodiment, as shown in FIG. 4A, the fixing portion 26b of the elastic member 26 serving as the urging means is supported by the mounting portion 29 provided so as to protrude from the lower surface 20a of the top cover 20. The fixing portion 26b of the elastic member 26 is supported on the lower surface 20a (inner wall surface) side of the top cover 20 on the device frame 1 side (device frame side). The elastic member 26 has a ladle shape, and biases a lower surface 22e of the substrate 22 toward the lower surface 20a (inner wall surface) of the top cover 20 by a pressing portion 26c. It has a configuration.

  The substrate 22 is urged in the direction of arrow Z in FIGS. 4A and 4B by the elastic force of the elastic member 26. The abuttable area 40 of the substrate 22 comes into contact with the abutting portion 24 provided to project from the lower surface 20a of the top cover 20, and the position of the substrate 22 in the direction of the arrow Z in FIGS. Determined.

  The positions of the substrate 22 in the width direction (left and right direction in FIGS. 4A and 4B) and in the depth direction (front side and back side in FIG. 4) are regulated as follows. The substrate 22 protrudes toward the lower surface 20a (inner wall surface) side of the top cover 20 and is regulated by being guided by the guide surfaces 28a of the guide portions 28 formed on the four sides around the substrate 22. The tapered surface 28b of the guide portion 28 guides the elastic member 26 when the elastic member 26 is attached to the attachment portion 29 of the top cover 20.

  A gap 4 is provided between the guide surface 28 a of the guide portion 28 and the substrate 22. 4B is applied to the top cover 20 by the user, and the right side of the top cover 20 in FIG. 4B is tilted in the direction of arrow K in FIG. 4B. Then, the substrate 22 sandwiched and held by the abutting portion 24 provided to project from the lower surface 20 a of the top surface cover 20 and the pressing portion 26 c of the elastic member 26 is also tilted integrally with the top surface cover 20.

  The guide portion 28 has a guide surface 28 a that is substantially perpendicular to the lower surface 20 a of the top cover 20. Furthermore, it has a taper surface 28b having a predetermined angle at the tip. The guide surface 28a of the guide portion 28 functions as a guide when the substrate 22 is movable, and the tapered surface 28b of the guide portion 28 contacts the abutting portion 24 provided to protrude the substrate 22 from the lower surface 20a of the top cover 20. It functions as a guide when assembled in contact.

  In a state where the substrate 22 is in contact with the abutting portion 24 provided to project from the lower surface 20a of the top cover 20, the abutting portion 24 abuts against the abuttable area 40 shown in FIG. When the substrate 22 and the abutting portion 24 provided to protrude from the lower surface 20 a of the top cover 20 come into contact with each other, a gap 51 is generated between the upper surface 22 a of the substrate 22 and the lower surface 20 a of the top cover 20. Due to the gap 51, it is possible to prevent the top cover 20 from coming into contact with the transmission / reception unit 31 on the substrate 22, an electronic element (not shown), a through hole, or the like.

  Between the upper surface 1a of the apparatus frame 1 and the lower surface 26a of the elastic member 26 in a state in which the substrate 22 is urged by the abutting portion 24 provided to protrude from the lower surface 20a of the top cover 20 by the elastic member 26. A gap 5 with a separation distance L5 is provided. As shown in FIG. 4B, the gap 5 is formed when the top cover 20 serving as the exterior cover is pushed to the inside of the main body of the image forming apparatus S under the external force indicated by the arrow K in FIG. The gap can absorb the pressing amount.

  By providing the gap 5 of the separation distance L5, the substrate 22 and the elastic member 26 can be retracted to the apparatus frame 1 side by a separation distance L5 in the downward direction of FIG. The separation distance L5 of the gap 5 is set to be larger than the maximum deformation amount of the top cover 20 that is assumed at the time of physical distribution or user use.

<Evacuation operation>
Next, with reference to FIGS. 4A and 4B, the retracting operation of the substrate 22 having the antenna 22b for short-distance wireless communication when an external force is applied to the top cover 20 in the present embodiment will be described. FIG. 4A shows a Y sectional view as seen from the direction of arrow A in FIG. 1 in a state where no external force is applied to the top cover 20. FIG. 4B shows a Y cross-sectional view as seen from the direction of arrow A in FIG. 1 in a state in which the top surface cover 20 is deformed by an external force acting on the top surface cover 20 in the direction of arrow K in FIG.

  As shown in FIG. 4A, the following is a state in which no external force is applied to the top cover 20. The elastic member 26 supported on the lower surface 20a side of the top cover 20 is urged in the direction of arrow Z in FIG. The abuttable area 40 of the upper surface 22a of the substrate 22 is held and held in a state of abutting against the abutting portion 24 projecting from the lower surface 20a of the top cover 20.

  On the other hand, as shown in FIG. 4B, an external force in the direction of arrow K is applied to the right side of the top cover 20 in FIG. 4B by the user. Then, the right side of the top cover 20 in FIG.

  The abutting portion 24 is also displaced following the deformation of the top cover 20. As shown in FIG. 4B, the substrate 22 sandwiched between the abutting portion 24 and the elastic member 26 in accordance with the displacement of the abutting portion 24 is also guided by the guide surface 28a of the guide portion 28. The face cover 20 is displaced so as to be integrally tilted. Further, the elastic member 26 is displaced integrally with the top cover 20 following the displacement of the substrate 22.

  At this time, a gap 5 having a separation distance L5 shown in FIG. 4A is provided between the lower surface 26a of the elastic member 26 and the upper surface 1a of the apparatus frame 1. Therefore, the substrate 22 and the elastic member 26 can be retracted to the apparatus frame 1 side. Since an external force is not directly applied to the transmitting / receiving unit 31 of the substrate 22, it is not damaged.

  Thereafter, when the user stops applying external force to the top cover 20, the top cover 20 is not deformed. As a result, the substrate 22 is restored to the position shown in FIG. 4A integrally with the top cover 20 while being held by the urging force of the elastic member 26 again.

  In the present embodiment, the top cover 20, the substrate 22 and the elastic member 26 can be integrally retracted in a gap 5 having a separation distance L5 between the lower surface 26a of the elastic member 26 and the upper surface 1a of the apparatus frame 1. Yes. As a result, the top cover 20 and the substrate 22 can be brought close to each other until they come into contact with each other. The image formation has a short-range wireless communication function that is more sensitive than the comparative example shown in FIG. The device S can be realized.

  In this embodiment, since the holding member 23 used in the first embodiment is not required, the image forming apparatus S can be downsized with a simple configuration.

  In each of the above-described embodiments, an example in which the substrate 22 having the short-range wireless communication antenna 22b is disposed directly below the top cover 20 has been described. In addition, when the substrate 22 having the antenna 22b for short-distance wireless communication is disposed between the outer cover other than the top cover 20, for example, the right cover and the apparatus frame 1, the same configuration is adopted. Effects can be obtained. Other configurations are the same as those in the first embodiment, and the same effects can be obtained.

S ... Image forming apparatus 1 ... Apparatus frame 3 ... Gap 6 ... Substrate unit
20… Top cover (exterior cover)
22… Board (Board unit)
23… Holding member
25 ... Elastic member (biasing means)

Claims (6)

An image forming apparatus comprising: an apparatus frame; an exterior cover that covers the apparatus frame; and a substrate unit that is provided between the exterior cover and the apparatus frame and includes a substrate having an antenna for short-range wireless communication. There,
Biasing means for biasing the substrate unit toward the exterior cover and abutting against the exterior cover;
A gap is provided between the apparatus frame and the exterior cover to allow the substrate unit to move to the apparatus frame side when the exterior cover receives an external force and is pushed to the inside of the main body of the image forming apparatus. An image forming apparatus. The substrate unit includes a holding member that holds the substrate,
The image forming apparatus according to claim 1, wherein the urging unit urges the holding member.   3. The image forming apparatus according to claim 1, wherein the exterior cover includes an abutting portion that projects toward the apparatus frame and that abuts against the substrate unit.   4. The image forming apparatus according to claim 3, wherein the abutting portion is provided corresponding to a position that does not contact a through hole or an electronic element of a circuit pattern provided on the substrate.   The image forming apparatus according to claim 1, wherein the urging unit is supported by the apparatus frame. The image forming apparatus according to claim 1, wherein the urging unit is supported on a surface of the exterior cover on the apparatus frame side.

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