JP6992133B2 - Image forming device - Google Patents

Description

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

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

Japanese Unexamined Patent Publication No. 2006-53477

Further, there is an image forming apparatus provided with a communication unit that performs short-range wireless communication in order to enable communication with a mobile device or an ID card. FIG. 1 is a perspective view showing the configuration of an image forming apparatus having a short-range wireless communication function. FIG. 5 is a Y sectional view of a comparative example seen 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 arranged between a top cover 20 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 device frame 1. A separation distance L1 is provided from the lower surface 20a, which is the inner peripheral surface of the top cover 20, to the transmission / reception unit for short-range wireless communication. This separation distance L1 prevents the top cover 20 from coming into contact with the substrate 22 having an antenna for short-distance wireless communication even if the top cover 20 is deformed due to product transportation or an external force by the user. Is set to.

If the separation distance L1 shown in FIG. 5 is large, the responsiveness of short-range wireless communication may not be sufficiently ensured. Therefore, in order to improve the response performance of short-range wireless communication, the 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 short-range wireless communication is set as much as possible. It needs to be small.

In the comparative example shown in FIG. 5, the substrate 22 having an antenna for short-range wireless communication is fixed to the holding member 21 fixed to the device frame 1. Therefore, if the top cover 20 deformed by an external force comes into contact with the substrate 22 having an antenna for short-distance 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 an object of the present invention is to make the separation distance between the cover and a substrate having an antenna for short- range wireless communication as small as possible to achieve a better near field. It provides an image forming apparatus having responsiveness of range radio communication.

A typical configuration of the image forming apparatus according to the present invention for achieving the above object is a frame, a cover covering the frame, and an antenna for short-range wireless communication provided between the cover and the frame. In an image forming apparatus for forming an image on a sheet material, the cover includes a holding member for holding the substrate and the frame side from the inner surface of the cover, which is a surface on the frame side. The holding member has a protrusion for forming a gap between the inner surface and the substrate, and the holding member is a fixing portion supported by the inner surface of the cover, which is a surface on the frame side. A first extension portion extending from the fixed portion toward the frame, and a support portion extending from the fixed portion toward the frame, and a support portion from the support portion to the frame. It is configured to have a second extension portion extending toward the substrate, the substrate is arranged between the support portion and the protrusion portion, and the cover projects from the inner surface toward the frame side. A first guide portion provided and for restricting the position of one end portion of the substrate held by the holding member in a direction parallel to the inner surface, and the other end portion of the substrate held by the holding member. It is characterized by having a second guide portion for regulating the position of the.

According to the above configuration, it is possible to reduce the separation distance between the substrate having the antenna for short- range wireless communication and the cover , and the short-range wireless communication performance having excellent response performance is obtained. It is possible to prevent damage to the board.

It is a perspective explanatory drawing which shows the structure of an image forming apparatus. It is a plane explanatory view which shows the structure of the substrate which has the antenna for short-distance wireless communication. (A) is a Y cross-sectional view showing a configuration seen from the direction of arrow A in FIG. 1 in a state where no external force is applied to the exterior cover of the first embodiment of the image forming apparatus according to the present invention. (B) is a Y sectional view showing a configuration seen from the direction of arrow A in FIG. 1 in a state where an external force is applied to the exterior cover of the first embodiment. (A) is a Y cross-sectional view showing a configuration seen from the direction of arrow A in FIG. 1 in a state where no external force is applied to the exterior cover of the second embodiment of the image forming apparatus according to the present invention. (B) is a Y sectional view showing a configuration seen from the direction of arrow A in FIG. 1 in a state where an external force is applied to the exterior cover of the second embodiment. It is a Y cross-sectional view which shows the structure which compared example was seen from the direction of arrow A of FIG.

An embodiment of the image forming apparatus according to the present invention will be specifically described with reference to the drawings. 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 to those, unless otherwise specified.

First, the configuration of the first embodiment of the image forming apparatus according to the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is a perspective explanatory view showing an example of an electrophotographic image forming apparatus. FIG. 2 is a plan explanatory view showing the configuration of a substrate having an antenna for short-range wireless communication. FIG. 3A is a cross-sectional view taken along the line Y showing a configuration seen 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 cross-sectional view taken along the line Y showing a configuration seen 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 antenna 22b for short-range wireless communication shown in FIG. 2 has the antenna 22b 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 or a smartphone having ID (Identification) identification information to hold the image forming apparatus S from the outside toward the substrate 22 having the antenna 22b for short-distance wireless communication. As a result, security authentication is performed, and only authorized users can print with the image forming apparatus S.

In the present embodiment, the present invention is applicable not only to the security authentication purpose but also to the board unit 6 including the board 22 having the antenna 22b for short-distance wireless communication corresponding to various purposes.

Further, the substrate unit 6 including the substrate 22 having the antenna 22b for short-distance wireless communication is arranged inside the image forming apparatus S main body inside the top cover 20 serving as the 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 the top cover 20 as the exterior cover. The other end of the elastic member 25, which is a urging means composed of a coil spring whose one end is supported by the device frame 1, is supported by abutting against the lower surface 23a of the holding member 23. The board unit 6 includes a holding member 23 that holds the board 22 having an antenna 22b for short-range wireless communication. The elastic member 25 serving as an urging means urges the holding member 23.

FIG. 3 (FIG. 3) shows the substrate 22 and the holding member 23 holding the substrate 22 by the extension force of the elastic member 25 toward the abutting portion 24 provided so as to project toward the lower surface 20a on the inner peripheral surface side of the top cover 20. It is configured to urge in the direction of the arrow Z in a) and (b).

The top cover 20 serving as an exterior cover has an abutting portion 24 that projects toward the device frame 1 side (device 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) to be the exterior cover and abuts the substrate unit 20 against the top cover 20.

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

The substrate 22 having the antenna 22b for short-distance wireless communication is held by a holding portion provided on the holding member 23. FIG. 3A shows that the holding member 23 holding the substrate 22 is on the top cover 20 side (exterior cover side) by the elastic member 25 whose one end is locked to the device frame 1 and is supported by the elastic member 25. It is urged in the direction of arrow Z.

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

The holding member 23 of the present embodiment is provided with a fitting step portion 23b 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 fitted into the fitting step portion 23b of the holding member 23 and is positioned in the horizontal direction (horizontal direction in FIG. 3A). Further, the substrate 22 is provided with through holes 22c and 22d, and the boss 23c and the claw portion 23d erected in the central portion of the holding member 23 are inserted into the through holes 22c and 22d, and the substrate 22 is inserted by the claw portion 23d. The upper surface 22a of the is locked. As a result, the substrate 22 is locked and held by the holding member 23.

The width direction shown in the left-right direction of FIG. 3A of the substrate 22 held by the holding member 23 and the position in the depth direction from the front side of the paper surface of FIG. 3A are regulated as follows. The holding member 23 is regulated by protruding toward 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 all 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 retracts to the device frame 1 side against the extension force of the elastic member 25. Even when the holding member 23 is tilted inward, the holding member 23 is smoothly retracted.

The guide portion 27 has a guide surface 27a substantially perpendicular to the lower surface (inner wall surface) of the top cover 20. Further, the tip portion has a tapered surface 27b having a predetermined angle.

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 surface cover 20 is assembled.

The substrate 22 having the antenna 22b for short-range wireless communication shown in FIG. 2 has a transmission / reception unit 31 for short-range wireless communication. The region where the transmission / reception unit 31 and the electronic elements and through holes (not shown) are not arranged is set as the abuttable region 40 where the abutting portion 24 provided so as to project from the lower surface 20a of the top cover 20 can be abutted. ..

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

When the abuttable region 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 created between the upper surface 22a of the substrate 22 and the lower surface 20a of the top cover 20. With this gap 50, it is possible to prevent the lower surface of the top cover 20 from coming into contact with the transmission / reception unit 31 on the substrate 22, an electronic element, a through hole, or the like (not shown).

As shown in FIG. 3A, between the upper surface 1a of the apparatus frame 1 and the lower surface 23a of the holding member 23 in a state where the substrate unit 6 including the substrate 22 is urged to the abutting portion 24 by the elastic member 25. Is provided with a gap 3 having a separation distance L4. As shown in FIG. 3B, the gap 3 is an elastic member 25 so that when the top cover 20 receives an external force and is pushed toward 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 device frame 1 and the top cover 20 serving as an exterior cover. The gap 3 provides a substrate unit 6 including a substrate 22 having an antenna 22b for short-distance wireless communication when the top cover 20 receives an external force and is pushed toward the inside of the main body of the image forming apparatus S on the apparatus frame 1 side. It can be moved to (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 downward by the separation distance L4 in FIG. 3A. The separation distance L4 is set to be larger than the maximum amount of deformation of the top cover 20 assumed at the time of distribution or user use.

A retaining portion 34 is provided so as to project from the lower surface 23a of the holding member 23. The retaining portion 34 is inserted into the through hole 1b provided in the device frame 1, and the claw portion provided at the tip thereof is locked to the lower surface 1c of the device frame 1 and is urged by the elastic member 25. Prevent it from coming off.

The retaining portion 34 moves the holding member 23 so that the holding member 23 urged by the elastic member 25 in the direction of arrow Z in FIG. 3A does not pop out when the top cover 20 is not attached. Has the function of regulating. By having the retaining portion 34, it is possible to easily assemble the top cover 20 after assembling the elastic member 25 and the holding member 23 to the device frame 1.

<Evacuation operation>
Next, the retracting operation of the substrate 22 and the holding member 23 when an external force acts on the top cover 20 in the present embodiment will be described with reference to FIGS. 3 (a) and 3 (b).

FIG. 3A shows a cross-sectional view taken along the line Y 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 the direction of arrow A 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. The Y cross-sectional view seen from is shown.

As shown in FIG. 3A, it is as follows in a state where no external force acts on the top cover 20. The substrate 22 held by the holding member 23 is urged in the direction of arrow Z in FIG. 3A by the stretching force of the elastic member 25. As a result, the abuttable area 40 is held in a state of being abutted 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 tilted in the arrow K direction of FIG. 3 (b) against the stretching force of the elastic member 25. .. The abutting portion 24 also displaces following the deformation of the top cover 20.

The substrate 22 and the holding member 23 that are in contact with the abutting portion 24 are also displaced as shown in FIG. 3B in accordance with the displacement of the abutting portion 24. While the holding member 23 is guided by the guide surface 27a formed of the inner wall surface of the guide portion 27 shown on the right side of FIG. 3 (b), the right side of FIG. ) Is displaced so as to be tilted in the K direction.

As shown in FIG. 3A, there is a gap 3 having a separation distance L4 between the lower surface 23a of the holding member 23 and the upper surface 1a of the device frame 1. As a result, the holding member 23 can be retracted to the device frame 1 side (lower side in FIG. 3B). As a result, no external force is directly applied to the transmitter / receiver 31 of the substrate 22. Therefore, the board 22 and the transmission / reception unit 31 are not damaged.

After that, when the user stops applying the external force in the direction of the arrow K in FIG. 3 (b) to the top cover 20, the holding member 23, the substrate 22, and the top cover 20 are subjected to FIG. Restore to the posture position shown in a).

In the present embodiment, the distance between the substrate 22 having the antenna 22b for short-range wireless communication and the holding member 23 (board unit 6) between the lower surface 23a of the holding member 23 and the upper surface 1a of the apparatus frame 1. It is configured so that it can be evacuated by using the gap 3 of L4. As a result, the abutting portion 24 of the top cover 20 and the abuttable region 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 which is superior in sensitivity to the comparative example shown in FIG. 5 and can prevent damage due to an external force.

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

Next, the configuration of the second embodiment of the image forming apparatus according to the present invention will be described with reference to FIGS. 1 and 4. It should be noted that the same components as those in the first embodiment are given the same reference numerals or the same member names even if the reference numerals are different, and the description thereof will be omitted. FIG. 4A is a cross-sectional view taken along the line Y showing a configuration seen 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 cross-sectional view taken along the line Y showing a configuration seen 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. Since the configuration of the substrate 22 (board unit) having the antenna 22b for short-distance wireless communication is the same as that of the first embodiment, the overlapping description will be omitted.

In the first embodiment, the substrate 22 having the antenna 22b for short-distance wireless communication is held by the holding member 23 urged by the elastic member 25. In the present embodiment, the urging means for urging the substrate 22 having the antenna 22b for short-distance wireless communication to the top cover 20 side (exterior cover side) is the top cover 20 by the elastic member 26 made of a leaf spring or the like. It is configured to abut and hold the abutting portion 24 protruding from the lower surface 20a of the above.

In the present 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 project 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 device frame 1 side (device frame side) of the top cover 20. The elastic member 26 is formed in the shape of a cassotte in cross section, and the pressing portion 26c urges the lower surface 22e of the substrate 22 to the abutting portion 24 provided so as to project toward the lower surface 20a (inner wall surface) of the top cover 20. It is composed.

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 region 40 of the substrate 22 comes into contact with the abutting portion 24 projecting from the lower surface 20a of the top cover 20, and the positions of the substrate 22 in the arrow Z directions of FIGS. 4A and 4B are located. It will be decided.

The positions of the substrate 22 in the width direction (horizontal direction in FIGS. 4A and 4B) and in the depth direction (front side and back side of the paper surface in FIG. 4) are regulated as follows. The substrate 22 is regulated by protruding toward the lower surface 20a (inner wall surface) side of the top cover 20 and being guided by the guide surface 28a of the guide portion 28 formed on all 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 mounting portion 29 of the top cover 20.

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

The guide portion 28 has a guide surface 28a substantially perpendicular to the lower surface 20a of the top cover 20. Further, the tip portion has a tapered surface 28b having a predetermined angle. 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 hits the abutting portion 24 provided so as to project the substrate 22 onto the lower surface 20a of the top cover 20. It functions as a guide when assembling in contact.

In a state where the substrate 22 is in contact with the abutting portion 24 provided so as to project from the lower surface 20a of the top cover 20, the abutting portion 24 abuts on the abuttable region 40 shown in FIG. When the substrate 22 and the abutting portion 24 projecting from the lower surface 20a of the top cover 20 come into contact with each other, a gap 51 is formed between the upper surface 22a of the substrate 22 and the lower surface 20a of the top cover 20. The gap 51 can prevent the top cover 20 from coming into contact with the transmitter / receiver 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 where the substrate 22 is urged by the abutting portion 24 provided so as to project from the lower surface 20a of the top cover 20 by the elastic member 26. A gap 5 having 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 receives an external force indicated by the arrow K in FIG. 4B and is pushed toward the inside of the image forming apparatus S main body. It is a gap that 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 device frame 1 side by the separation distance L5 in the downward direction of FIG. 4A integrally with the top cover 20. The separation distance L5 of the gap 5 is set to be larger than the maximum amount of deformation of the top cover 20 assumed at the time of distribution or user use.

<Evacuation operation>
Next, the retracting operation of the substrate 22 having the antenna 22b for short-distance wireless communication when an external force acts on the top cover 20 in the present embodiment will be described with reference to FIGS. 4 (a) and 4 (b). FIG. 4A shows a cross-sectional view taken along the line Y 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 cross-sectional view taken along the line Y as seen from the direction of arrow A in FIG. 1 in a state where the top cover 20 is deformed by an external force acting on the top cover 20 in the direction of arrow K in FIG.

As shown in FIG. 4A, it is as follows in a state where no external force acts on 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. 4A. Then, the abuttable region 40 of the upper surface 22a of the substrate 22 is sandwiched and held in a state of being abutted against the abutting portion 24 protruding from the lower surface 20a of the top cover 20.

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

The abutting portion 24 also displaces following the deformation of the top cover 20. Then, the substrate 22 sandwiched between the abutting portion 24 and the elastic member 26 according to the displacement of the abutting portion 24 is also guided by the guide surface 28a of the guide portion 28 as shown in FIG. 4 (b). Displace so that it tilts integrally with the surface cover 20. Further, the elastic member 26 is also integrally displaced with the top cover 20 in accordance with the displacement of the substrate 22.

At that 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 device frame 1. Therefore, the substrate 22 and the elastic member 26 can be retracted to the device frame 1 side. Since no external force is directly applied to the transmission / reception section 31 of the board 22, it will not be damaged.

After that, when the user stops applying an external force to the top cover 20, the deformation of the top cover 20 disappears. As a result, the substrate 22 is restored to the position shown in FIG. 4A integrally with the top cover 20 while being held again by the urging force of the elastic member 26.

In the present embodiment, the top cover 20, the substrate 22, and the elastic member 26 can be integrally retracted in the gap 5 of the separation distance L5 between the lower surface 26a of the elastic member 26 and the upper surface 1a of the device frame 1. There is. This makes it possible to bring the top cover 20 and the substrate 22 close to each other until they come into contact with each other, which is more sensitive than the comparative example shown in FIG. 5 and has a short-range wireless communication function capable of preventing damage due to an external force. The device S can be realized.

Since the holding member 23 used in the first embodiment is not required in the present embodiment, the image forming apparatus S can be miniaturized with a simple configuration.

Further, in each of the above embodiments, an example of a case where the substrate 22 having the antenna 22b for short-distance wireless communication is arranged directly under the top cover 20 has been described. In addition, even when an exterior cover other than the top cover 20, for example, a substrate 22 having an antenna 22b for short-distance wireless communication is arranged between the right cover and the device frame 1, the same configuration is used. Effect can be obtained. The other configurations are the same as those in the first embodiment, and the same effects can be obtained.

S ... Image forming device 1 ... Device frame 3 ... Gap 6 ... Board unit
20… Top cover (exterior cover)
22… Board (board unit)
23… Holding member
25… Elastic member (urging means)

Claims (9)

An image forming apparatus comprising a frame, a cover covering the frame, and a substrate provided between the cover and the frame and having an antenna for short-range wireless communication, and forming an image on a sheet material.
The cover projects from the inner surface of the cover, which is a surface on the frame side, toward the frame side, and forms a gap between the inner surface and the substrate. With a protrusion,
The holding member has a fixing portion supported by an inner surface of the cover, which is a surface on the frame side, and a supporting portion that contacts the lower surface of the substrate in the direction of gravity to support the substrate, and the fixing portion is provided. It is configured to have a first extension portion extending from the portion toward the frame and a second extension portion extending from the support portion toward the frame.
The substrate is arranged between the support and the protrusion.
The cover is provided so as to project from the inner surface toward the frame side, and is a first guide portion for restricting the position of one end portion of the substrate held by the holding member in a direction parallel to the inner surface. An image forming apparatus comprising, and a second guide portion for regulating the position of the other end portion of the substrate held by the holding member . The lower surface of the holding member provided between the first extension portion and the second extension portion is characterized in that it is arranged on the frame side of the fixing portion and the support portion in the direction of gravity. The image forming apparatus according to claim 1. The first guide portion and the second guide portion are provided on the frame side of the restricting portion and the regulating portion that regulates the position of the end portion of the substrate, respectively, and the first guide portion is provided. 1 or 2 , wherein the second guide portion has an inclined portion inclined so as to be separated from the end portion of the substrate with respect to the regulation portion. Image forming device. The image forming apparatus according to claim 3 , wherein the inclined portion guides the substrate to the assembling position when the substrate is assembled at the assembling position of the substrate with respect to the cover. The image forming apparatus according to claim 4 , wherein the substrate is arranged at the assembly position with the surface on which the antenna is provided and the inner surface of the cover facing each other. The image forming apparatus according to any one of claims 1 to 5 , wherein the protruding portion is provided between the first guide portion and the second guide portion. The claim is characterized in that a gap is provided between the frame and the cover so that the substrate can be moved to the frame side when the cover receives an external force and is pushed toward the frame side. Item 6. The image forming apparatus according to any one of Items 1 to 6 . The substrate is characterized in that when the cover is pushed toward the frame side by receiving an external force, the cover moves integrally with the cover to the frame side in a state of being sandwiched between the holding member and the projecting portion. The image forming apparatus according to any one of claims 1 to 7 . The image according to any one of claims 1 to 8 , wherein the protruding portion is provided corresponding to a through hole of a circuit pattern provided on the substrate and a position not to come into contact with an electronic element. Forming device.

Images