Image forming device

Abstract

To provide a display device which is downsized.SOLUTION: The display device comprises: a side surface part 112; a side surface part 113 arranged to oppose to the side surface part 112; a front surface part 114, arranged in a direction of crossing the side surface part 112 and the side surface part 113, which has an opening 115; a control board 106, arranged between the side surface part 112 and the side surface part 113, which has a light emitting element 107; and a display panel 105, mounted on the opening 115, through which light emitted from the light emitting element 107 is transmitted. When viewed from a direction which is orthogonal to a normal line of the control board 106 and is parallel to the side surface 112 and the side surface 113, a distance between the side surface part 112 and the side surface part is shorter than a length of the control board 106, and the control board 106 is inclined with respect to the side surface part 112 and the side surface part 113.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention , painting It relates to an image forming apparatus. [Background technology]

[0002] Image forming devices such as printers and copiers are equipped with many components, such as circuit boards and motors, making them prone to becoming large in size. Therefore, in order to reduce the size of image forming devices, for example, Patent Document 1 introduces the configuration of an image forming device that has been reduced in size by devising the layout positions within the device of a low-voltage power supply unit that generates low voltage, a high-voltage power supply unit that generates high voltage, and driving components such as motors. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-20932 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in recent years, there has been a demand for further miniaturization of image forming apparatuses, and efforts to miniaturize image forming apparatuses are being promoted. While efforts are being made to miniaturize the main body of an image forming apparatus, there is a trend toward enlarging the display unit, such as a display panel of a display device that notifies a user of the status of the image forming apparatus, in order to improve visibility from the perspective of usability. Therefore, as the display unit becomes larger, the control unit that controls the display unit may also become larger, which poses a challenge in miniaturizing the main body of an image forming apparatus.

[0005] The present invention has been made under these circumstances, and has as its object to reduce the size of a display device. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the present invention has the following configuration.

[0007] (1) An image forming apparatus for forming an image on a recording material a first wall, a second wall disposed opposite the first wall, a third wall disposed in a direction intersecting the first wall and the second wall and having an attachment portion, and a third wall disposed between the first wall and the second wall. It is a substrate , a mounting surface and a Light-emitting part and and a display unit that transmits light emitted from the light-emitting unit and is attached to the attachment unit, When the direction in which the first wall and the second wall face each other is defined as a facing direction, and the direction perpendicular to both the vertical direction and the normal direction of the mounting surface is defined as an orthogonal direction, The distance between the first wall and the second wall is In the orthogonal direction shorter than the length of the substrate, When viewed in the vertical direction, The image forming apparatus is characterized in that the substrate is inclined with respect to the first wall and the second wall. [Effects of the Invention]

[0009] According to the present invention, the display device can be made smaller. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view showing the external appearance of an image forming apparatus according to first to third embodiments; [Figure 2] Schematic diagram showing the configuration of the display panel in Examples 1 to 3 [Figure 3] 1 is a diagram illustrating the configuration of a display device according to Examples 1 to 3. [Figure 4] FIG. 1 is a plan view illustrating a configuration of a display device according to a first embodiment; [Figure 5] Directivity characteristics of the light-emitting elements of Examples 1 to 3 [Figure 6] FIG. 10 is a plan view illustrating the configuration of a display device according to a second embodiment. [Figure 7] FIG. 10 is a plan view illustrating the configuration of a display device according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. [Example]

[0012] [Image forming device] FIG. 1 is a perspective view showing the external shape of an image forming apparatus equipped with a display device to which the present invention is applied. Image forming apparatus 100 of Example 1 is a monochrome laser beam printer using an electrophotographic process, and forms an image on a recording material using a developer (toner) in accordance with image information transmitted from an external device such as a personal computer. Examples of recording materials that can be used include recording paper, label paper, overhead projector sheets, and cloth. A paper feed unit 101 located at the bottom of image forming apparatus 100 stores recording materials on which images are to be formed. When an image formation operation starts, the stored recording materials are transported into image forming apparatus 100. Image forming apparatus 100 includes an internal image forming unit that forms an image on a recording material. Images are formed on the recording material transported from paper feed unit 101 using a developer, and the recording material on which the image has been formed is transported to discharge unit 102. The recording material on which the image has been formed is then discharged and stacked in discharge unit 102 located at the top of image forming apparatus 100. A display device 103, indicated by the arrow in the figure, is provided in a position that is easily visible to the user on the left side of the discharge unit 102. The display device 103 uses a display panel 104 (see FIG. 2) to display the remaining amount of developer, which is a consumable item used by the image forming unit when forming images.

[0013] [Display board configuration] Fig. 2 is an enlarged view of the display device 103 shown in Fig. 1. The display device 103 has a side surface portion 112, which is a first wall provided on the left side in the figure, and a side surface portion 113, which is a second wall provided on the right side in the figure and facing the first wall. The display device 103 also has a front surface portion 114, which is a third wall provided on the front side (near side) in the figure and arranged in a direction intersecting the side surface portions 112 and 113, and a display panel 104 arranged on the front surface portion 114. The display device 103 also has a control board 106 and light-emitting elements 107, which are described below, although not shown in Fig. 2.

[0014] Here, display board 104 is provided with a plurality of openings 115 that are mounting portions for mounting display panels 105. Display panels 105 (105a, 105b, 105c, 105d) that are display portions that transmit light emitted from light-emitting elements (described later) are mounted in each opening 115 of display board 104. Note that suffixes a, b, c, and d will be omitted below except when referring to a specific display panel 105. Control board 106 (not shown in FIG. 2, details will be described later) is disposed inside display device 103 surrounded by side portions 112, 113, and front portion 114, and controls the display state of display panel 105 on display board 104.

[0015] Each display panel 105 is made of a translucent diffusing material, and when light is irradiated from behind, the irradiated light is transmitted through the panel and diffused internally, causing the panel to emit light, so that when the display panel 105 is viewed from the front (the front side in FIG. 2), it appears as if it is lit. On the other hand, when no light is irradiated, when the display panel 105 is viewed from the front (the front side in FIG. 2), it appears as if it is unlit.

[0016] The number of indicators lit on the display panel 105 of the indicator board 104 changes depending on the remaining amount of developer. Specifically, when the remaining amount of developer is 80% or more, four indicators 105a, 105b, 105c, and 105d are lit. When the remaining amount of developer is 50% or more but less than 80%, three indicators 105b, 105c, and 105d are lit, and the display panel 105a is turned off. When the remaining amount of developer is 20% or more but less than 50%, two indicators 105c and 105d are lit, and the two indicators 105a and 105b are turned off. When the remaining amount of developer is less than 20%, only the indicator 105d is lit, and the three indicators 105a, 105b, and 105c are turned off.

[0017] [Display device configuration] The present invention aims to miniaturize the display device 103 in order to miniaturize the image forming apparatus 100. When miniaturizing the image forming apparatus 100, the widths (horizontal length in the figure) of the paper feed unit 101 and the discharge unit 102 shown in FIG. 1 cannot be made smaller than the width of the recording material stored in the paper feed unit 101 and the width of the recording material discharged to the discharge unit 102. Therefore, in order to miniaturize the image forming apparatus 100, it is important to miniaturize the display device 103, which is installed to the left of the discharge unit 102 in FIG. 1. In the image forming apparatus 100 of this embodiment, in order to miniaturize the display device 103, it is also necessary to reduce the width (horizontal length in FIG. 2) of the front portion 114 of the display device 103.

[0018] Fig. 3 is a diagram illustrating the configuration of a control board 106, which is a control unit constituting the display device 103 of this embodiment and controls the lighting of the display panel 105 of the display board 104. Fig. 3 is a perspective view of the display device 103 shown in Fig. 2, and in Fig. 3, the display board 104 and the display panel 105 shown in Fig. 2 are not shown.

[0019] As shown in FIG. 3 , the control board 106 is disposed between the side surface 112 and the side surface 113, behind the front surface 114, which is the internal space of the display device 103. In this embodiment, the side surface 113 is a wall that forms the side of the recording material discharge section 102. The control board 106 is mounted with light-emitting elements 107 (107a, 107b, 107c, 107d) such as LEDs that serve as light-emitting units and emit light to the display panels 105 of the display board 104, as well as peripheral circuits that drive the light-emitting elements 107. Hereinafter, the suffixes a, b, c, and d will be omitted unless a specific light-emitting element 107 is being referred to. The peripheral circuits that drive the light-emitting elements 107 include a circuit pattern for supplying power to the light-emitting elements 107 and a current-limiting resistor that limits the current flowing through the light-emitting elements 107. A connector 108 for connecting an interface cable 109 is mounted on the surface of the control board 106 opposite the surface on which the light-emitting elements 107 are mounted. The other end of the interface cable 109 is connected to a control unit (not shown) that controls the image forming apparatus 100. A light emission instruction signal for each light emitting element 107 according to the remaining amount of developer is output from the control unit to the control board 106 via the interface cable 109, and a power supply voltage for driving the control board 106 is supplied.

[0020] The light emitting elements 107 are mounted at positions corresponding to the respective display panels 105 attached to the display board 104, in order to illuminate the back of the corresponding display panels 105 and set them to illuminated displays. In this embodiment, the control board 106 is disposed at an angle of 45 degrees with respect to the front portion 114 on which the display board 104 is disposed, i.e., the front (near side in FIG. 2) of the display device 103 shown in FIG. 2. Also, in this embodiment, the width d2 of the control board 106 in the short side direction in FIG. 3 is greater than the width d1, which is the length of the front portion 114 in the left-right direction in FIG. 3. Here, the width of the control board 106 in the short side direction refers to the distance between two parallel straight lines tangent to the control board 106 when viewed from a direction perpendicular to the surface of the control board 106, when the distance between the two parallel straight lines is shortest.

[0021] 3, width d1 indicates the width of front portion 114 of display device 103, and width d2 indicates the width in the short-side direction of control board 106 described above. Width d1 is determined by the configuration of image forming apparatus 100 related to parts other than control board 106, and width d2 is determined by the width in the short-side direction of control board 106. Note that width d1 is the distance between side portion 112 and side portion 113 when viewed from a direction perpendicular to the normal to control board 106 and parallel to side portion 112 and side portion 113.

[0022] In this embodiment, it is assumed that width d2 is greater than width d1. If width d2 of control board 106 in the short-side direction is equal to or less than width d1 of front portion 114, control board 106 can be disposed parallel to display panel 104. On the other hand, if width d2 is greater than width d1 and control board 106 is disposed parallel to front portion 114, the width required by display device 103 in the front direction of image forming apparatus 100 shown in FIG. 1, as shown in FIG. 3, is equal to or greater than d2, the length of the short side of control board 106. On the other hand, if control board 106 is disposed at a 45-degree angle with respect to front portion 114 as in this embodiment, the width required by front portion 114 of display device 103 in the front direction of display device 103 shown in FIG. 3 is equal to or greater than (d2 / √2) according to Pythagoras' theorem. In this embodiment, as shown in FIG. 3, the magnitude relationship among the three widths is width d2 > width d1 > width (d2 / √2).

[0023] In this manner, when the control board 106 is disposed at an angle of 45 degrees relative to the front surface 114, the width of the display device 103 in the front direction of the image forming apparatus 100 can be set to width d1. This allows the width to be smaller than the width d2 when the control board 106 is disposed parallel to the front surface 114. Furthermore, when the control board 106 is disposed at an angle of 45 degrees relative to the front surface 114, the length of the control board 106 in the depth direction as viewed from the front of the image forming apparatus 100 is (d2 / √2) according to Pythagoras' theorem. Therefore, the length of the control board 106 in the depth direction can be made smaller than the length d2 of the control board 106 in the depth direction as viewed from the front of the image forming apparatus 100 when the control board 106 is disposed perpendicular to the front surface 114 on which the display panel 104 is disposed. Furthermore, by disposing the connector 108 on the surface opposite to the surface on which the light emitting element 107 is mounted, it is possible to reduce the size of the device while ensuring space for disposing the interface cable 109.

[0024] [Display panel brightness] Fig. 4 is a plan view of display device 103 as viewed from above in Fig. 3. Fig. 4 shows how light emitted from light-emitting elements 107 mounted on control board 106 is irradiated onto display panel 105 attached to display board 104, and how interface cable 109 is connected to connector 108 of control board 106. In Fig. 4, the arrows shown by solid lines indicate light emitted vertically from light-emitting elements 107 of control board 106, and the arrows shown by dotted lines indicate light emitted in a direction at an angle of 45 degrees to the vertical direction from light-emitting elements 107 of control board 106.

[0025] FIG. 5 is a diagram illustrating the directional characteristics of light emitted from the light-emitting element 107 mounted on the control board 106 of this embodiment. The directional characteristic diagram illustrates the spread of light emitted by the light-emitting element 107 in terms of relative brightness (relative luminous intensity) for each angle, with the directional characteristics of the light-emitting element 107 depicted as a graph (thick solid line) on a semicircular diagram. In the directional characteristic diagram, the numbers 0, 10, . . . , and 90 on the circumference of the semicircle indicate the angle (unit: degrees) of the light emitted by the LED, and the numbers 0, 50, and 100 on the straight line portion representing the diameter of the semicircle indicate the relative luminous intensity (unit: %). In the directional characteristic diagram, the brightness at the brightest part (angle) is set to a relative luminous intensity of 100%, and the area surrounded by the thick solid line illustrates how the brightness decreases relative to the angle of the light emitted by the LED as the angle increases.

[0026] In FIG. 5, the solid arrows indicate light emitted vertically from light-emitting element 107 of control board 106, and the dotted arrows indicate light emitted from light-emitting element 107 of control board 106 in a direction at an angle of 45 degrees from the vertical direction. As shown in FIG. 5, the relative luminous intensity of light emitted in a direction at an angle of 45 degrees from the vertical direction is approximately 95%. Therefore, even when control board 106 is disposed at an angle of 45 degrees from display board 104, the light emitted from light-emitting element 107 can irradiate display panel 105 of display board 104 with a sufficient amount of light, allowing display panel 105 to be illuminated. On the other hand, when control board 106 is disposed perpendicular to display board 104, the relative luminous intensity is 0% as shown in FIG. 5, and the light emitted from light-emitting element 107 does not reach display panel 105 of display board 104.

[0027] As described above, by arranging the control board 106 at a 45-degree angle with respect to the front surface 114, the angle between the light-emitting elements 107 of the control board 106 and the display panel 105 attached to the display board 104 arranged on the front surface 114 is also 45 degrees. This allows light emitted from the light-emitting elements 107 of the control board 106 to be incident on the display panel 105 of the display board 104 with a sufficient amount of light, thereby lighting up the display. Furthermore, by arranging the control board 106 at a 45-degree angle with respect to the front surface 114, it is possible to provide a display device 103 that is compact in both the width and depth directions. Note that in this embodiment, a configuration in which the control board 106 is arranged at a 45-degree angle with respect to the display board 104 has been described. The angle between the control board 106 and the display board 104 is not limited to 45 degrees, and may be any angle in which the length of the shorter side of the control board 106 parallel to the width direction of the front surface 114 is equal to or shorter than the length of the front surface 114 in the width direction. Therefore, the angle of control board 106 relative to front surface portion 114 (an angle greater than 0 degrees and less than 90 degrees) can be determined according to the length of control board 106 in the short side direction and the width of front surface portion 114. Also, in Fig. 3, control board 106 is disposed at a position rotated 45 degrees relative to front surface portion 114 around the left end in the figure, but it may also be disposed at a position rotated 45 degrees relative to front surface portion 114 around the right end in the figure, for example.

[0028] As described above, in this embodiment, the control board 106 and the front surface 114 are arranged at an oblique angle, neither parallel (0 degree angle) nor perpendicular (90 degree angle). This prevents the width and depth of the display device 103 from increasing due to the size of the control board 106. In this embodiment, the angle of the control board 106 relative to the front surface 114 is set to an angle that allows sufficient light to reach the light emitting element 107 in consideration of its directional characteristics, thereby ensuring a sufficient amount of light incident on the rear surface of the display panel 105. Furthermore, in this embodiment, the connector 108 that connects the interface cable 109 for supplying power and transmitting and receiving control signals to and from a control unit (not shown) of the image forming apparatus 100 is provided on the surface of the control board 106 opposite to the surface on which the light emitting element 107 is mounted. This configuration makes it possible to provide a compact display device 103 that has sufficient space for arranging the interface cable 109 that connects the control unit (not shown) and the control board 106. In this embodiment, the display panel 104 and the front surface 114 are flat, but may be curved, for example. Also, in this embodiment, the front surface 114 and the display panel 104 are arranged in a direction intersecting the first wall and the second wall and are a third wall having an attachment portion, but the third wall may be composed of two or more members in this way.

[0029] As described above, according to this embodiment, the display device can be made smaller. [Example]

[0030] In the second embodiment, a configuration will be described in which more light emitted from the light-emitting elements of the control board reaches the display panel of the display board than in the configuration of the first embodiment. Note that the image forming apparatus to which the display device of the second embodiment is applied is similar to the image forming apparatus 100 of the first embodiment shown in FIG. 1, and the same components are designated by the same reference numerals, and the description thereof will be omitted here. Also, with regard to the display device 103, the same components as in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted here.

[0031] [Display device configuration] 6 is a plan view of the display device 103 of this embodiment when viewed from above the image forming apparatus 100 shown in FIG. 1, similar to FIG. 4 of the first embodiment. FIG. 6 shows how light emitted from light-emitting elements 107 mounted on a control board 106 is irradiated onto a display panel 105 attached to a display board 104, and how an interface cable 109 is connected to a connector 108 of the control board 106. As shown in FIG. 6, in this embodiment as well, the control board 106 is disposed at an angle of 45 degrees with respect to the front surface 114.

[0032] 6, the arrows shown by solid lines indicate light emitted in the vertical direction from light-emitting element 107 of control board 106, and the arrows shown by dotted lines indicate light emitted in a direction at an angle of 45 degrees from the vertical direction from light-emitting element 107 of control board 106. In this embodiment, the light emitted in the vertical direction from light-emitting element 107 of control board 106 is reflected by reflective surface 110 installed on the inner wall of display device 103 facing light-emitting element 107, and reaches display panel 105 of display board 104. Therefore, in addition to light directly incident from light-emitting element 107 (light shown by dotted lines in the figure), light emitted in the vertical direction from light-emitting element 107 and reflected by reflective surface 110 (light shown by solid lines in the figure) is incident on display panel 105 of display board 104. As a result, more light is incident on the display panel 105 than in Example 1, which is effective, for example, when it is desired to make the lighting display of the display panel 105 brighter or when it is desired to configure the light-emitting element 107 as a low-light-output element with a small amount of light output.

[0033] The reflective surface 110 in this embodiment is made of a flat surface of white mold resin, which is the same material as the exterior of the display device 103, i.e., the exterior of the image forming device 100. If it is desired to make the light incident on the display panel 105 more efficient, the reflective surface 110 may be made of a mirror surface such as metal, for example.

[0034] As described above, in this embodiment, the reflecting surface 110 is provided on the inner wall inside the display device 103 facing the light emitting element 107, so that the light emitted from the light emitting element 107 is reflected by the reflecting surface 110 and enters the back surface of the display panel 105. This makes it possible to increase the amount of light entering from the back surface of the display panel 105 while keeping the display device 103 compact, and to light up the display panel 105 more brightly. Furthermore, since the efficiency of light transmission from the light emitting element 107 to the display panel 105 is improved, it becomes possible to use inexpensive light emitting elements that emit a small amount of light.

[0035] As described above, according to this embodiment, the display device can be made smaller. [Example]

[0036] In the third embodiment, a configuration will be described in which more light emitted from the light emitting elements of the control board reaches the display panel of the display board than in the configuration of the first embodiment, and the incident angle of light incident on the display panel of the display board is more uniform than in the configuration of the second embodiment. Note that the image forming apparatus to which the display device of the third embodiment is applied is similar to the image forming apparatus 100 shown in FIG. 1 of the first embodiment, and the same components are designated by the same reference numerals, and their description will be omitted here. Also, with regard to the display device 103, the same components as in the first embodiment are designated by the same reference numerals, and their description will be omitted here.

[0037] [Display device configuration] 7 is a plan view of the display device 103 of this embodiment when viewed from above the image forming apparatus 100 shown in FIG. 1, similar to FIG. 6 of the second embodiment. FIG. 7 shows how light emitted from light-emitting elements 107 mounted on a control board 106 is irradiated onto a display panel 105 attached to a display board 104, and how an interface cable 109 is connected to a connector 108 of the control board 106. As shown in FIG. 7, in this embodiment as well, the control board 106 is disposed at an oblique angle of 45 degrees with respect to the front surface 114.

[0038] 7, the solid arrows indicate light emitted in the vertical direction from the light-emitting element 107 of the control board 106, and the dotted arrows indicate light emitted in a direction at a 45-degree angle from the vertical direction from the light-emitting element 107 of the control board 106. In this embodiment, the light emitted from the light-emitting element 107 toward the display panel 104 at a 45-degree angle from the vertical direction and entering the light guide 111, which is a light-guiding member, is refracted at the interface of the light guide 111 and enters the corresponding display panel 105 of the display board 104. The light emitted in the vertical direction from the light-emitting element 107 enters the light guide 111, is reflected by the inner surface of the light guide 111, and enters the corresponding display panel 105 of the display board 104. Therefore, by passing through the light guide 111, the light emitted from the light-emitting element 107 enters the corresponding display panel 105 of the display board 104 at an incident angle that is more uniform than in the first and second embodiments. When the area of ​​the display panel 105 of the display board 104 is large, if the angle of incidence of light incident on the display panel 105 varies, uneven light within the display panel 105 becomes more noticeable. Therefore, if uneven light is noticeable, the above-described light guide 111 can be used to align the angle of incidence of light on the display panel 105 so that light strikes the display panel 105 evenly, thereby preventing the occurrence of uneven light.

[0039] As described above, in this embodiment, the light guide 111 is disposed between the control board 106 and the display panel 105, and the light emitted from the light emitting elements 107 is guided by the light guide 111 to illuminate the display panel 105 from behind. This makes it possible to make the angle of incidence of light incident from the back of the display panel 105 more uniform, thereby suppressing uneven light emission from the display panel 105.

[0040] As described above, according to this embodiment, the display device can be made smaller. [Explanation of symbols]

[0041] 105 Display Panel 106 Control board 107 Light-emitting element 112 Side part 113 Side part 114 Front 115 Aperture

Claims

1. An image forming apparatus for forming an image on a recording material, The first wall and a second wall disposed opposite the first wall; a third wall disposed in a direction intersecting the first wall and the second wall and having an attachment portion; a substrate disposed between the first wall and the second wall, the substrate having a mounting surface and a light-emitting portion disposed on the mounting surface; a display unit that transmits light emitted from the light emitting unit and is attached to the attachment unit; and a direction in which the first wall and the second wall face each other is defined as an opposing direction, and a direction orthogonal to both the vertical direction and the normal direction of the mounting surface is defined as an orthogonal direction, the distance between the first wall and the second wall in the opposing direction is shorter than the length of the substrate in the orthogonal direction, An image forming apparatus, wherein the substrate is inclined with respect to the first wall and the second wall when viewed in the vertical direction.

2. the light-emitting unit has a plurality of light-emitting elements, 2. The image forming apparatus according to claim 1, wherein the display units are attached to the attachment parts in correspondence with the respective light emitting elements.

3. the image forming device has a reflective surface that reflects light emitted from the light emitting element on a surface facing the light emitting element, 3. The image forming apparatus according to claim 2, wherein the light emitted from the light emitting element is reflected by the reflecting surface and is irradiated onto the corresponding display portion.

4. a light guiding member disposed between the substrate and the third wall and configured to guide light emitted from the light emitting element to the display unit; 3. The image forming apparatus according to claim 2, wherein the light emitted from the light-emitting element is incident on the light-guiding member and is irradiated onto the corresponding display unit with the incident angle of the light aligned.

5. the display unit is a display panel that internally diffuses light irradiated from a rear surface of the display unit, 5. The image forming apparatus according to claim 2, wherein the light emitting element emits light onto a rear surface of the corresponding display unit.

6. the substrate has a connector for connecting a signal for controlling lighting of the light-emitting element and a cable for supplying a power supply voltage; 6. The image forming apparatus according to claim 2, wherein the connector is provided on a surface of the substrate opposite to a surface on which the light emitting element is mounted.

7. 7. The image forming apparatus according to claim 6, wherein the first wall or the second wall forms a side surface of a discharge portion through which the recording material is discharged.

Images