JP2021086110A

JP2021086110A - Display unit and image forming apparatus

Info

Publication number: JP2021086110A
Application number: JP2019217174A
Authority: JP
Inventors: 雄作牧野; Yusaku Makino; 真吾服部; Shingo Hattori
Original assignee: Canon Inc
Current assignee: Canon Inc
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2021-06-03
Anticipated expiration: 2039-11-29
Also published as: JP7404045B2

Abstract

To provide a display unit that allows a user to easily replace a light guide member without changing the brightness that is the user's visibility of the light guide member before and after the replacement.SOLUTION: A long-sized light guide member 401 is provided with a first engagement part 45, a second engagement part 48, and third engagement parts 46, 47. The light guide member 401 is engaged with an exterior member 50 by the engagement parts (45 to 48). In the light guide member 401, the third engagement parts 46, 47 are provided between the first engagement part 45 and the second engagement part 48 with respect to a longitudinal direction. In this case, in a state where the light guide member 401 is attached to the exterior member 50, the distance between a rear face (incident surface) of the light guide member 401 and LEDs (61 to 63) is maintained constant. With this, a user can easily replace the light guide member 401 without causing a difference in brightness of an emission area of the light guide member 401 before and after the replacement, in other words, without changing the user's visibility.SELECTED DRAWING: Figure 8

Description

本発明は、プリンタ、複写機、ファクシミリあるいは複合機などの装置に用いて好適な表示装置、及び表示装置を備えた画像形成装置に関する。 The present invention relates to a display device suitable for use in a device such as a printer, a copying machine, a facsimile or a multifunction device, and an image forming device provided with the display device.

従来、複写機、複合機、プリンタ、ファックス等の画像形成装置には、起動状況や動作状況（例えば、画像形成動作中、エラーなど）をユーザに報知するために、起動状況や動作状況に応じて発光状態を変えられる表示装置が設けられている。表示装置として、遮光性の外装カバーの内側に複数のＬＥＤが配置され、各ＬＥＤから発せられる光が導光部により導光されて、各ＬＥＤに対応して外装カバーに開けられた開口部から外側に発せられるものが提案されている（特許文献１）。特許文献１の記載の表示装置では、導光部の先端部分に設けられている出光部を外装カバーの表面から外側に突出させて、ユーザの視認性を確保している。 Conventionally, image forming devices such as copiers, multifunction devices, printers, and fax machines are used according to the starting status and operating status in order to notify the user of the starting status and operating status (for example, during image forming operation, error, etc.). A display device that can change the light emission state is provided. As a display device, a plurality of LEDs are arranged inside the light-shielding exterior cover, and the light emitted from each LED is guided by the light guide unit, and the light emitted from each LED is guided from the opening opened in the exterior cover corresponding to each LED. Those emitted to the outside have been proposed (Patent Document 1). In the display device described in Patent Document 1, the light emitting portion provided at the tip end portion of the light guide portion is projected outward from the surface of the exterior cover to ensure the user's visibility.

特開２０１１−１９４５７６号公報Japanese Unexamined Patent Publication No. 2011-194576

特許文献１の記載の表示装置のように、出光部が外装カバーの表面から突出されて装置の外観面を形成しているような場合には、出光部つまりは導光部に傷がつきやすく、また破損する虞がある。そこで、導光部を交換可能に設けることが考えられる。しかしながら、特許文献１に記載の装置の場合、導光部を交換するのに外装カバーを外すなどの作業を行わなければならず、また交換の際に導光部を所定の位置に確実に装着するのに手間がかかることから、導光部の交換は面倒な作業であった。 When the light emitting portion protrudes from the surface of the exterior cover to form the external surface of the device as in the display device described in Patent Document 1, the light emitting portion, that is, the light guide portion is easily scratched. , And there is a risk of damage. Therefore, it is conceivable to provide the light guide unit in a replaceable manner. However, in the case of the device described in Patent Document 1, work such as removing the outer cover must be performed to replace the light guide portion, and the light guide portion is securely attached to a predetermined position at the time of replacement. Replacing the light guide was a troublesome task because it took time and effort to do so.

本発明は上記問題に鑑みてなされたもので、導光部を容易に交換可能な表示装置、及び表示装置を備えた画像形成装置を提供することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to provide a display device in which a light guide unit can be easily replaced, and an image forming device including the display device.

本発明に係る表示装置は、光を発する発光部と、前記発光部の外側に配置され、前記発光部から発せられる光を外側に通過させない遮光部と、前記発光部から発せられる光を外側に通過させる開口部とを有する外装部材と、外側から前記開口部を塞ぐように前記外装部材に着脱自在に設けられ、第一面から入射した前記開口部を通過した光を拡散光に変えて、前記第一面と反対側の第二面から出射する長尺状の導光部材と、を備え、前記導光部材は、前記外装部材に装着するために、長手方向に関し、一端側に設けられた第一係合部と、他端側に設けられた第二係合部と、前記第一係合部と第二係合部との間に設けられた第三係合部とを有する、ことを特徴とする。 The display device according to the present invention has a light emitting unit that emits light, a light shielding unit that is arranged outside the light emitting unit and does not allow light emitted from the light emitting unit to pass outside, and a light emitting unit that emits light emitted from the light emitting unit to the outside. An exterior member having an opening through which the light passes, and a light that is detachably provided on the exterior member so as to close the opening from the outside and that has passed through the opening that is incident from the first surface are converted into diffused light. A long light guide member that emits light from a second surface opposite to the first surface is provided, and the light guide member is provided on one end side in the longitudinal direction for mounting on the exterior member. It has a first engaging portion, a second engaging portion provided on the other end side, and a third engaging portion provided between the first engaging portion and the second engaging portion. It is characterized by that.

本発明に係る表示装置は、第一発光素子と第二発光素子とが間隔を空けて設けられた発光部と、前記発光部の外側に配置され、前記第一発光素子と前記第二発光素子のそれぞれから発せられる光を外側に通過させない遮光部と、前記第一発光素子から発せられる光を外側に通過させる第一開口部と、前記第二発光素子から発せられる光を外側に通過させる第二開口部とを有する外装部材と、外側から前記第一開口部と前記第二開口部とを塞ぐように前記外装部材に着脱自在に設けられ、第一面から入射した前記第一開口部を通過した光と前記第二開口部を通過した光をそれぞれ拡散光に変えて、前記第一面と反対側の第二面から出射する長尺状の導光部材と、を備え、前記導光部材は、前記外装部材に装着するために、長手方向に関し、一端側に設けられた第一係合部と、他端側に設けられた第二係合部と、前記第一係合部と第二係合部との間に設けられた第三係合部とを有する、ことを特徴とする。 The display device according to the present invention has a light emitting unit in which a first light emitting element and a second light emitting element are provided at intervals, and a light emitting unit, which is arranged outside the light emitting unit, and the first light emitting element and the second light emitting element. A light-shielding portion that does not allow the light emitted from each of the above to pass outward, a first opening that allows the light emitted from the first light emitting element to pass outward, and a second portion that allows light emitted from the second light emitting element to pass outward. An exterior member having two openings, and the first opening detachably provided on the exterior member so as to close the first opening and the second opening from the outside, and the first opening incident from the first surface. The light guide is provided with a long light guide member that converts the light that has passed and the light that has passed through the second opening into diffused light and emits light from the second surface opposite to the first surface. The members include a first engaging portion provided on one end side, a second engaging portion provided on the other end side, and the first engaging portion in the longitudinal direction for mounting on the exterior member. It is characterized by having a third engaging portion provided between the second engaging portion.

本発明によれば、交換前後で導光部材の明るさつまりはユーザの視認性を変えることなく、導光部材を容易に交換することが簡易な構成で実現できる。 According to the present invention, it is possible to easily replace the light guide member with a simple configuration without changing the brightness of the light guide member, that is, the visibility of the user before and after the replacement.

本実施形態の表示装置を用いて好適な画像形成装置を示す斜視図。The perspective view which shows the suitable image forming apparatus using the display apparatus of this embodiment. 画像形成装置の構成を示す概略図。The schematic which shows the structure of the image forming apparatus. 制御部について説明するための制御ブロック図。The control block diagram for explaining the control part. 角度調整機構について説明するための図であり、（ａ）は最小傾斜角の場合、（ｂ）は最大傾斜角の場合。It is a figure for demonstrating the angle adjustment mechanism, (a) is the case of the minimum inclination angle, (b) is the case of the maximum inclination angle. 本実施形態の表示装置を示す斜視図。The perspective view which shows the display device of this embodiment. 表示装置の構成について説明するための図。The figure for demonstrating the configuration of a display device. （ａ）導光部材を表面から見た斜視図、（ｂ）は導光部材を裏面から見た斜視図。(A) is a perspective view of the light guide member viewed from the front surface, and (b) is a perspective view of the light guide member viewed from the back surface. 導光部材を外装部材に装着した状態を示す断面図。The cross-sectional view which shows the state which the light guide member is attached to the exterior member. 導光部材の装着について説明するための図であり、（ａ）は装着開始時、（ｂ）は係合部の係合前、（ｃ）は係合部の係合開始時。It is a figure for demonstrating the attachment of a light guide member, (a) is at the start of attachment, (b) is before the engagement of the engaging part, and (c) is at the start of engagement of an engagement part. ＬＥＤと係合部との配置関係について説明するための拡大断面図。An enlarged cross-sectional view for explaining the arrangement relationship between the LED and the engaging portion. 出射領域の明るさ測定について説明するための図。The figure for demonstrating the brightness measurement of an emission area. 出射領域の明るさ測定の結果を示すグラフ。The graph which shows the result of the brightness measurement of the emission area. 出射領域の明るさ測定の結果を示す図。The figure which shows the result of the brightness measurement of the emission area. ＬＥＤの指向性を示す図。The figure which shows the directivity of an LED.

以下、図面を参照しながら本実施形態の表示装置について説明する。まず、本実施形態の表示装置を用いて好適な画像形成装置について、図１及び図２を用いて説明する。図１に示す画像形成装置１は、電子写真方式のフルカラーレーザープリンターである。以下の説明において、装置本体１０に対して操作パネル部３０が配置される側（図１の右手前側）を「手前（又は正面）」、その反対側を「奥」と呼ぶ。また、正面から視た装置本体１０の右手側を「右」、正面から視た装置本体１０の左手側を「左」と呼ぶ。 Hereinafter, the display device of this embodiment will be described with reference to the drawings. First, a suitable image forming apparatus using the display device of the present embodiment will be described with reference to FIGS. 1 and 2. The image forming apparatus 1 shown in FIG. 1 is an electrophotographic full-color laser printer. In the following description, the side (right front side in FIG. 1) on which the operation panel unit 30 is arranged with respect to the apparatus main body 10 is referred to as "front (or front)", and the opposite side is referred to as "back". Further, the right-hand side of the device body 10 viewed from the front is referred to as "right", and the left-hand side of the device body 10 viewed from the front is referred to as "left".

＜画像形成装置＞
図１に示すように、画像形成装置１は、大まかに、装置本体１０と、装置本体１０の上方に配置された画像読取部２０とを備えている。装置本体１０は画像形成部１０１（図２参照）を内蔵し、給送カセット２７から給送される記録材Ｓに対し画像形成部１０１により画像が形成される。そして、画像が形成された記録材Ｓは排出トレイ１９へ排出される。なお、記録材Ｓとしては、普通紙、厚紙、ラフ紙、凹凸紙、コート紙、光沢紙、印画紙等の用紙、プラスチックフィルム、布など、といった様々な種類のシート材が挙げられる。 <Image forming device>
As shown in FIG. 1, the image forming apparatus 1 roughly includes an apparatus main body 10 and an image reading unit 20 arranged above the apparatus main body 10. The apparatus main body 10 includes an image forming unit 101 (see FIG. 2), and an image is formed by the image forming unit 101 on the recording material S fed from the feeding cassette 27. Then, the recording material S on which the image is formed is discharged to the discharge tray 19. Examples of the recording material S include various types of sheet materials such as plain paper, thick paper, rough paper, uneven paper, coated paper, glossy paper, paper such as photographic paper, plastic film, and cloth.

装置本体１０の上部には、ユーザが画像形成装置１を操作するための操作パネル部３０が配置されている。本実施形態の場合、操作パネル部３０は、左右を軸として上下に角度調整可能に傾けることができるように装置本体１０に設けられている（後述の図４（ａ）及び図４（ｂ）参照）。また、操作パネル部３０には、画面を表示可能な表示器７０と、面発光可能であり、その発光状態によって表示を行う発光表示装置４０とが設けられている。操作パネル部３０については詳細を後述する（図５及び図６参照）。なお、表示器７０はユーザによるタッチ操作により、例えば記録材Ｓの種類やサイズなどの画像形成に関する情報を入力可能なタッチパネルであってもよい。また、ここでは図示を省略したが、操作パネル部３０にはユーザ操作可能なボタン類やスイッチ、テンキーなどが設けられていてもよい。 An operation panel unit 30 for the user to operate the image forming apparatus 1 is arranged on the upper part of the apparatus main body 10. In the case of the present embodiment, the operation panel unit 30 is provided on the apparatus main body 10 so that the operation panel unit 30 can be tilted up and down with the left and right axes in an adjustable manner (FIGS. 4A and 4B described later). reference). Further, the operation panel unit 30 is provided with a display 70 capable of displaying a screen and a light emitting display device 40 capable of surface emitting light and displaying according to the light emitting state. Details of the operation panel unit 30 will be described later (see FIGS. 5 and 6). The display 70 may be a touch panel capable of inputting information related to image formation such as the type and size of the recording material S by a touch operation by the user. Further, although not shown here, the operation panel unit 30 may be provided with buttons, switches, numeric keys, etc. that can be operated by the user.

図２に示すように、原稿から画像情報を読取る画像読取部２０は、プラテンガラスを備えた読取装置本体２１と、読取装置本体２１に対して開閉可能なプラテンカバー２２とを有する。プラテンガラスに載置された原稿は、読取装置本体２１に内蔵された走査光学系によって走査されることで、画像情報を抽出される。 As shown in FIG. 2, the image reading unit 20 that reads image information from a document has a reading device main body 21 provided with platen glass and a platen cover 22 that can be opened and closed with respect to the reading device main body 21. The document placed on the platen glass is scanned by the scanning optical system built in the reading device main body 21 to extract image information.

画像形成部１０１は、画像読取部２０又は不図示の外部機器（例えば、スマートフォンなどの携帯端末やパーソナルコンピュータ等）から受け取った画像情報に基づいて画像を形成する。画像形成部１０１は、装置本体１０の枠体を成す筐体１１の内部に収容されている。本実施形態の場合、画像形成部１０１は４つの画像形成ユニットＰＹ、ＰＭ、ＰＣ、ＰＫを備えた、所謂タンデム型中間転写方式の構成である。画像形成ユニットＰＹ，ＰＭ，ＰＣ，ＰＫは、それぞれ、イエロー（Ｙ）、マゼンタ（Ｍ）、シアン（Ｃ）、ブラック（Ｋ）のトナー像を形成し、中間転写ベルト７を介して記録材Ｓに画像を形成する。 The image forming unit 101 forms an image based on image information received from the image reading unit 20 or an external device (for example, a mobile terminal such as a smartphone, a personal computer, etc.) (not shown). The image forming unit 101 is housed inside a housing 11 that forms a frame of the apparatus main body 10. In the case of the present embodiment, the image forming unit 101 has a so-called tandem type intermediate transfer method configuration including four image forming units PY, PM, PC, and PK. The image forming units PY, PM, PC, and PK form toner images of yellow (Y), magenta (M), cyan (C), and black (K), respectively, and the recording material S is formed via the intermediate transfer belt 7. Form an image.

各画像形成ユニットＰＹ、ＰＭ、ＰＣ、ＰＫには、有機感光体（ＯＰＣ）等の感光体からなる感光ドラム２の周囲に、図示を省略した帯電器、現像器、及びクリーナが配置されている。感光ドラム２は、帯電器によって表面を一様に帯電させられた後、露光装置３から照射されるレーザー光によって露光されることで、表面に静電潜像が形成される。現像器は現像剤を用いて、感光ドラム２上に形成された静電潜像をトナー像に現像する。感光ドラム２上に現像されたトナー像は、中間転写ベルト７を挟んで感光ドラム２に対向する一次転写ローラ５に一次転写電圧が印加されることにより、中間転写ベルト７へと一次転写される。 In each image forming unit PY, PM, PC, PK, a charger, a developer, and a cleaner (not shown) are arranged around a photosensitive drum 2 made of a photoconductor such as an organic photoconductor (OPC). .. The surface of the photosensitive drum 2 is uniformly charged by a charger and then exposed by a laser beam emitted from the exposure apparatus 3, so that an electrostatic latent image is formed on the surface. The developer uses a developer to develop an electrostatic latent image formed on the photosensitive drum 2 into a toner image. The toner image developed on the photosensitive drum 2 is primarily transferred to the intermediate transfer belt 7 by applying a primary transfer voltage to the primary transfer roller 5 facing the photosensitive drum 2 with the intermediate transfer belt 7 interposed therebetween. ..

中間転写ベルト７は、二次転写部Ｔ２において記録材Ｓの搬送方向（図中上向き）に沿うように回転駆動される。中間転写ベルト７の表面には、各画像形成ユニットＰＹ、ＰＭ、ＰＣ、ＰＫによって形成された単色のトナー像が多重転写されることで、フルカラーのトナー像が形成される。中間転写ベルト７の表面に形成されたトナー像は、二次転写ローラ１３と対向ローラ９との間に形成された二次転写部Ｔ２において、記録材Ｓへと二次転写される。その際に、二次転写ローラ１３には二次転写電圧が印加される。 The intermediate transfer belt 7 is rotationally driven in the secondary transfer unit T2 along the transport direction (upward in the drawing) of the recording material S. A full-color toner image is formed by multiple-transferring a monochromatic toner image formed by each image forming unit PY, PM, PC, and PK on the surface of the intermediate transfer belt 7. The toner image formed on the surface of the intermediate transfer belt 7 is secondarily transferred to the recording material S at the secondary transfer portion T2 formed between the secondary transfer roller 13 and the opposing roller 9. At that time, a secondary transfer voltage is applied to the secondary transfer roller 13.

このような画像形成プロセスにあわせて、画像形成部１０１に記録材Ｓが供給される。即ち、装置本体１０の下部に設けられる給送部２５は、記録材Ｓを収容する給送カセット２７と、給送カセット２７に収容された記録材Ｓを１枚ずつ分離して搬送する給送ローラ２６とを備えている。 The recording material S is supplied to the image forming unit 101 in accordance with such an image forming process. That is, the feeding unit 25 provided at the lower part of the apparatus main body 10 separates and conveys the feeding cassette 27 accommodating the recording material S and the recording material S housed in the feeding cassette 27 one by one. It is equipped with a roller 26.

給送ローラ２６によって送り出された記録材Ｓは、レジストレーションローラ対１２によって斜行を補正され、トナー像の転写タイミングに合わせて二次転写部Ｔ２に向けて搬送される。二次転写部Ｔ２において未定着のトナー像を形成された記録材Ｓは、ローラ対及び加熱源等を有する定着器１４に搬送され、熱及び圧力を付与される。これにより、トナーが溶融・固着してトナー像が記録材Ｓに定着される。こうしてトナー像が定着された記録材Ｓは、排出ローラ対１８により、画像形成部１０１の上部に設けられた排出トレイ１９に排出される。なお、両面印刷の場合には、排出ローラ対１８によって記録材Ｓがスイッチバック搬送された後、複数の両面搬送ローラ対１７によって再び画像形成部１０１へと搬送される。そして、二次転写部Ｔ２及び定着器１４において裏面に画像が形成された記録材Ｓは、排出ローラ対１８によって排出トレイ１９に排出される。 The recording material S sent out by the feeding roller 26 is corrected for skew by the registration roller pair 12, and is conveyed toward the secondary transfer unit T2 in accordance with the transfer timing of the toner image. The recording material S on which an unfixed toner image is formed in the secondary transfer unit T2 is conveyed to a fixing device 14 having a roller pair, a heating source, and the like, and is subjected to heat and pressure. As a result, the toner is melted and fixed, and the toner image is fixed to the recording material S. The recording material S on which the toner image is fixed is discharged to the discharge tray 19 provided on the upper part of the image forming unit 101 by the discharge roller pair 18. In the case of double-sided printing, the recording material S is switchback-conveyed by the discharge roller pair 18, and then transported to the image forming unit 101 again by the plurality of double-sided transport roller pairs 17. Then, the recording material S on which the image is formed on the back surface in the secondary transfer unit T2 and the fixing device 14 is discharged to the discharge tray 19 by the discharge roller pair 18.

＜制御部＞
画像形成装置１はまた、図２に示すように制御部２００を備えている。制御部２００について、図３を用いて説明する。ただし、制御部２００には図示した以外にも画像形成装置１を動作させるためのモータや電源等の各種機器が接続されているが、ここでは発明の本旨でないのでそれらの図示及び説明を省略する。 <Control unit>
The image forming apparatus 1 also includes a control unit 200 as shown in FIG. The control unit 200 will be described with reference to FIG. However, although various devices such as a motor and a power supply for operating the image forming apparatus 1 are connected to the control unit 200 in addition to those shown in the drawings, the illustration and description thereof are omitted here because it is not the main purpose of the invention. ..

図３に示すように、制御部２００は主電源部３００からの電力供給を受けて駆動する。主電源部３００は、画像形成装置１の各部に電力供給を行うための電力源であり、ユーザ操作可能な電源スイッチを有している。電源スイッチがオンされることで、制御部２００を含む画像形成装置１の各部が動作し得る状態となり、電源スイッチがオフされることで、制御部２００を含む画像形成装置１の各部が動作し得ない状態となる。 As shown in FIG. 3, the control unit 200 receives power from the main power supply unit 300 and drives the control unit 200. The main power supply unit 300 is a power source for supplying electric power to each unit of the image forming apparatus 1, and has a power switch that can be operated by the user. When the power switch is turned on, each part of the image forming apparatus 1 including the control unit 200 can operate, and when the power switch is turned off, each part of the image forming apparatus 1 including the control unit 200 operates. It will be in a state where it cannot be obtained.

制御部２００は、画像形成動作などの各種制御を行うものであり、例えばＣＰＵ２０１（ＣｅｎｔｒａｌＰｒｏｃｅｓｓｉｎｇＵｎｉｔ）と、メモリ２０２とを有する。メモリ２０２は、ＲＯＭ（ＲｅａｄＯｎｌｙＭｅｍｏｒｙ）やＲＡＭ（ＲａｎｄｏｍＡｃｃｅｓｓＭｅｍｏｒｙ）などにより構成されている。メモリ２０２は、画像形成装置１を制御するための各種プログラムや各種データなどが記憶される。なお、メモリ２０２は、各種プログラムの実行に伴う演算処理結果などを一時的に記憶することもできる。 The control unit 200 performs various controls such as an image forming operation, and has, for example, a CPU 201 (Central Processing Unit) and a memory 202. The memory 202 is composed of a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The memory 202 stores various programs and various data for controlling the image forming apparatus 1. The memory 202 can also temporarily store the calculation processing results and the like associated with the execution of various programs.

ＣＰＵ２０１はメモリ２０２に記憶されている各種プログラムを実行可能であり、各種プログラムを実行して画像形成装置１を動作させ得る。本実施形態の場合、ＣＰＵ２０１は、メモリ２０２に記憶されている「画像形成ジョブ（プログラム）」などを実行可能である。制御部２００は画像形成ジョブの実行に伴い、画像形成装置１の動作を制御する。なお、画像形成ジョブとは、記録材Ｓに画像形成するプリント信号に基づいて、画像形成開始してから画像形成動作が完了するまでの一連の動作のことである。具体的には、プリント信号を受けた後の前回転時（画像形成前の準備動作）から、後回転（画像形成後の動作）までのことを指し、画像形成期間、紙間を含む。 The CPU 201 can execute various programs stored in the memory 202, and can execute various programs to operate the image forming apparatus 1. In the case of the present embodiment, the CPU 201 can execute the "image forming job (program)" stored in the memory 202. The control unit 200 controls the operation of the image forming apparatus 1 as the image forming job is executed. The image forming job is a series of operations from the start of image formation to the completion of the image forming operation based on the print signal for forming an image on the recording material S. Specifically, it refers to the period from the front rotation (preparatory operation before image formation) after receiving the print signal to the rear rotation (operation after image formation), and includes the image formation period and the space between papers.

制御部２００には、表示器７０や発光表示装置４０の発光部６０（後述の図６参照）が接続されている。ＣＰＵ２０１は、表示器７０を制御することにより画像形成に関する情報の表示画面（不図示）などの各種画面を表示させることができる。また、ＣＰＵ２０１は、画像形成装置１の起動状況や動作状況に応じて発光部６０を制御することで、発光表示装置４０を光らせることができる。 The display unit 70 and the light emitting unit 60 of the light emitting display device 40 (see FIG. 6 described later) are connected to the control unit 200. By controlling the display 70, the CPU 201 can display various screens such as a display screen (not shown) of information related to image formation. Further, the CPU 201 can make the light emitting display device 40 illuminate by controlling the light emitting unit 60 according to the activation state and the operating state of the image forming device 1.

本明細書において、起動状況とは、主電源部３００の電源スイッチがオンされているかオンされていないか、つまりは主電源部３００から電源供給を受けている状態（電源オン状態）であるか、電源供給を受けていない状態（電源オフ状態）であるかを示す。動作状況とは、ＣＰＵ２０１による画像形成ジョブの実行に伴い、画像形成動作が開始されて画像形成動作中である状態（正常状態と呼ぶ）であるか、何らかの原因により画像形成動作を開始できない状態（エラー状態と呼ぶ）であるかを示す。エラー状態となる原因としては、故障が生じた場合の他、例えば装置本体１０に設けられた不図示のフロントドアが開いている場合、ジャムが生じている場合、給送カセット２７などに画像形成に適当なサイズの記録材Ｓが収容されていない場合などがある。 In the present specification, the activation status is whether the power switch of the main power supply unit 300 is turned on or off, that is, whether the power supply is being supplied from the main power supply unit 300 (power on state). , Indicates whether the power supply is not received (power off state). The operation status is a state in which the image formation operation is started and the image formation operation is in progress (referred to as a normal state) with the execution of the image formation job by the CPU 201, or a state in which the image formation operation cannot be started for some reason (referred to as a normal state). Indicates whether it is in an error state). The cause of the error state is, in addition to the case where a failure occurs, for example, when the front door (not shown) provided in the apparatus main body 10 is open, when a jam occurs, or when an image is formed on the feeding cassette 27 or the like. In some cases, a recording material S of an appropriate size is not stored in the door.

本実施形態の場合、ＣＰＵ２０１は、主電源部３００から電源供給を受けている電源オン状態である場合、発光表示装置４０を発光させる。また、ＣＰＵ２０１は、正常状態である場合やエラー状態である場合に、発光表示装置４０を光らせる。ただし、ユーザが発光状態を視認して、上記の電源オン状態、正常状態、エラー状態を把握しやすいように、発光表示装置４０における発光位置などを、電源オン状態、正常状態、エラー状態で異ならせている。 In the case of the present embodiment, the CPU 201 causes the light emitting display device 40 to emit light when the power is on while receiving power from the main power supply unit 300. Further, the CPU 201 illuminates the light emitting display device 40 when it is in a normal state or in an error state. However, if the light emitting position in the light emitting display device 40 is different between the power on state, the normal state, and the error state so that the user can easily grasp the power on state, the normal state, and the error state by visually recognizing the light emitting state. I'm letting you.

＜角度調整機構＞
ここで、操作パネル部３０を上下に角度調整可能に傾けるための角度調整機構（所謂、チルト機構）について、図４（ａ）及び図４（ｂ）を用いて概要を説明する。操作パネル部３０は、例えば高身長のユーザから車椅子に座ったユーザまで幅広い視点高さに対応するために、水平面を基準に所定範囲（例えば１０度〜６０度）の任意の角度（傾斜角）に角度調整自在に上下に揺動可能に設けられている。図４（ａ）は背の高いユーザ等を想定して操作パネル部３０が最小傾斜角（例えば１０度）まで揺動された場合を示し、図４（ｂ）は車椅子に乗ったユーザ等を想定して操作パネル部３０が最大傾斜角（例えば６０度）まで揺動された場合を示す。 <Angle adjustment mechanism>
Here, an outline of an angle adjusting mechanism (so-called tilt mechanism) for tilting the operation panel unit 30 so as to be able to adjust the angle up and down will be described with reference to FIGS. 4 (a) and 4 (b). The operation panel unit 30 has an arbitrary angle (inclination angle) within a predetermined range (for example, 10 to 60 degrees) with respect to a horizontal plane in order to support a wide range of viewpoint heights from a tall user to a user sitting in a wheelchair. It is provided so that it can swing up and down with adjustable angle. FIG. 4A shows a case where the operation panel unit 30 is swung to the minimum inclination angle (for example, 10 degrees) assuming a tall user or the like, and FIG. 4B shows a user or the like in a wheelchair. Assuming, the case where the operation panel unit 30 is swung to the maximum inclination angle (for example, 60 degrees) is shown.

そうできるようにするために、操作パネル部３０は角度調整自在な揺動支持手段としての揺動支持部材８０に支持されている。揺動支持部材８０は、操作パネル部３０を支持する操作パネル支持部８１と、装置本体１０にビスにより固定される長尺状の装置側固定部８３と、装置側固定部８３に対し操作パネル支持部８１を揺動させるための揺動部８２とを有する。揺動部８２には、摩擦によって任意の角度を保持するフリーストップヒンジが設けられている。フリーストップヒンジにはいくつかの方式があるが、本実施形態では樹脂製のパイプに金属軸を圧入したパイプ式を用いている。 In order to make this possible, the operation panel portion 30 is supported by a swing support member 80 as a swing support means whose angle can be adjusted. The rocking support member 80 includes an operation panel support portion 81 that supports the operation panel portion 30, a long device-side fixing portion 83 that is fixed to the device main body 10 by screws, and an operation panel with respect to the device-side fixing portion 83. It has a swinging portion 82 for swinging the supporting portion 81. The swinging portion 82 is provided with a free stop hinge that holds an arbitrary angle by friction. There are several types of free stop hinges, but in this embodiment, a pipe type in which a metal shaft is press-fitted into a resin pipe is used.

＜発光表示装置＞
本実施形態の発光表示装置４０について、図５及び図６を用いて詳しく説明する。図５に示すように、本実施形態の場合、発光表示装置４０は表示器７０と一体的に設けられて操作パネル部３０を構成している。それ故、発光表示装置４０の外装部材５０は、表示器７０を保持する操作パネル部３０の外装カバーの一部を形成する。言い換えれば、操作パネル部３０の外装カバーの一部が外装部材５０を形成している。本実施形態の発光表示装置４０では、外装部材５０の外側に導光部材４０１が着脱自在に設けられ、外装部材５０の内側に後述する発光部６０（図６参照）が配置されている。詳しくは後述するように、発光部６０には発光素子として複数のＬＥＤが配列して設けられ、これらのＬＥＤが適宜に発光されることに応じて、ＬＥＤの光を出射面から出射するように光を導く導光部材４０１が設けられている。 <Light emission display device>
The light emitting display device 40 of this embodiment will be described in detail with reference to FIGS. 5 and 6. As shown in FIG. 5, in the case of the present embodiment, the light emitting display device 40 is integrally provided with the display device 70 to form the operation panel unit 30. Therefore, the exterior member 50 of the light emitting display device 40 forms a part of the exterior cover of the operation panel portion 30 that holds the display device 70. In other words, a part of the exterior cover of the operation panel portion 30 forms the exterior member 50. In the light emitting display device 40 of the present embodiment, the light guide member 401 is detachably provided on the outside of the exterior member 50, and the light emitting unit 60 (see FIG. 6) described later is arranged inside the exterior member 50. As will be described in detail later, a plurality of LEDs are arranged and provided as light emitting elements in the light emitting unit 60, and the light of the LEDs is emitted from the emitting surface according to the appropriate light emission of these LEDs. A light guide member 401 that guides light is provided.

図６に示すように、発光部６０には左右方向に複数のＬＥＤ（光源）が間隔を空けて基板上に配列されている。ここでは、右から順に第一ＬＥＤ６１（第一発光素子）、第二ＬＥＤ６２（第二発光素子）、第三ＬＥＤ６３が配置されている。そして、外装部材５０には、長手方向（ＬＥＤの配列方向）に関し、第一ＬＥＤ６１に対応した箇所に第一開口部５１、第二ＬＥＤ６２に対応した箇所に第二開口部５２、第三ＬＥＤ６３に対応した箇所に第三開口部５３が形成されている。ここでは、各開口部（５１〜５３）は、各ＬＥＤ（６１〜６３）が長手方向中央に位置するように形成されている。第一開口部５１は第一ＬＥＤ６１から発せられる光を通過させ、第二開口部５２は第二ＬＥＤ６２から発せられる光を通過させ、第三開口部５３は第三ＬＥＤ６３から発せられる光を通過させる。外装部材５０は遮光性部材であることから、第一開口部５１、第二開口部５２、第三開口部５３を除いた外装部材５０の他の部分は、第一ＬＥＤ６１、第二ＬＥＤ６２、第三ＬＥＤ６３のそれぞれから発せられる光を通過させない遮光部５９を形成する。なお、本実施形態では、第一ＬＥＤ６１と第三ＬＥＤ６３として発光色が緑色である緑色ＬＥＤを用い、第二ＬＥＤ６２として発光色が赤色である赤色ＬＥＤを用いている。また、これらＬＥＤ（６１〜６３）の発光光量は同じである。 As shown in FIG. 6, a plurality of LEDs (light sources) are arranged on the substrate at intervals in the left-right direction in the light emitting unit 60. Here, the first LED 61 (first light emitting element), the second LED 62 (second light emitting element), and the third LED 63 are arranged in order from the right. The exterior member 50 has a first opening 51 at a location corresponding to the first LED 61, a second opening 52 at a location corresponding to the second LED 62, and a third LED 63 in the longitudinal direction (LED arrangement direction). A third opening 53 is formed at the corresponding portion. Here, each opening (51-53) is formed so that each LED (61-63) is located at the center in the longitudinal direction. The first opening 51 allows the light emitted from the first LED 61 to pass through, the second opening 52 allows the light emitted from the second LED 62 to pass through, and the third opening 53 allows the light emitted from the third LED 63 to pass through. .. Since the exterior member 50 is a light-shielding member, the other parts of the exterior member 50 excluding the first opening 51, the second opening 52, and the third opening 53 are the first LED 61, the second LED 62, and the third. A light-shielding portion 59 that does not allow light emitted from each of the three LEDs 63 to pass through is formed. In the present embodiment, a green LED having a green emission color is used as the first LED 61 and the third LED 63, and a red LED having a red emission color is used as the second LED 62. Further, the amount of emitted light of these LEDs (61 to 63) is the same.

導光部材４０１は例えば樹脂（アクリル樹脂など）製の導光体であり、入射した発光部６０の光を出射面から出射可能である。本実施形態では、導光部材４０１が発光部６０における第一ＬＥＤ６１、第二ＬＥＤ６２、第三ＬＥＤ６３の配列方向に延びる長尺状に、且つ弾性変形可能に形成されている。導光部材４０１は、上記の第一開口部５１、第二開口部５２、第三開口部５３を外側から塞ぐように外装部材５０に設けられる。それ故、各ＬＥＤ（６１〜６３）を発光させた場合に、導光部材４０１には、発光部６０に面した第一面から上記の第一開口部５１、第二開口部５２、第三開口部５３をそれぞれ通過した光が入射される。そして、導光部材４０１は第一面から入射した第一開口部５１、第二開口部５２、第三開口部５３を通過した光をそれぞれ拡散光に変えて、第一面（裏面）と反対側の第二面（表面）から出射する。こうして、外装部材５０の内側に配置された複数のＬＥＤ（６１〜６３）を発光させると、各ＬＥＤ（６１〜６３）に対応して形成された複数の開口部（５１〜５３）を介して入射した光が、導光部材４０１は複数の異なる箇所で光を出射する。導光部材４０１において複数の異なる箇所から光を出射させることで、画像形成装置１の動作状況や起動状況に応じた異なる表示を行うことが可能となる。 The light guide member 401 is, for example, a light guide body made of resin (acrylic resin or the like), and can emit the incident light of the light emitting unit 60 from the light emitting surface. In the present embodiment, the light guide member 401 is formed in a long shape extending in the arrangement direction of the first LED 61, the second LED 62, and the third LED 63 in the light emitting unit 60 and elastically deformable. The light guide member 401 is provided on the exterior member 50 so as to close the first opening 51, the second opening 52, and the third opening 53 from the outside. Therefore, when each of the LEDs (61 to 63) is made to emit light, the light guide member 401 is subjected to the above-mentioned first opening 51, second opening 52, and third from the first surface facing the light emitting portion 60. Light that has passed through the openings 53 is incident. Then, the light guide member 401 converts the light that has passed through the first opening 51, the second opening 52, and the third opening 53 incident from the first surface into diffused light, and is opposite to the first surface (back surface). Emit from the second surface (surface) on the side. In this way, when the plurality of LEDs (61 to 63) arranged inside the exterior member 50 are made to emit light, the plurality of openings (51 to 53) formed corresponding to the respective LEDs (61 to 63) are used to emit light. The incident light emits light at a plurality of different points of the light guide member 401. By emitting light from a plurality of different locations in the light guide member 401, it is possible to perform different displays according to the operating status and the starting status of the image forming apparatus 1.

本実施形態では、導光部材４０１において第二開口部５２を通過した光を出射する範囲（便宜上、出射領域と呼ぶ）の大きさ（面積）と、第三開口部５３を通過した光の出射領域の大きさとが同じである。そして、導光部材４０１において第二開口部５２や第三開口部５３を通過した光の出射領域の大きさや明るさが、第一開口部５１を通過した光の出射領域よりも大きく明るくなるようにしている。ＬＥＤ発光時における導光部材４０１の出射領域の大きさや明るさを異ならせるために、本実施形態では、第一開口部５１の開口面積を、第二開口部５２の開口面積並びに第三開口部５３の開口面積と異ならせている。具体的に、第一開口部５１は、その開口面積が第二開口部５２（また第三開口部５３）よりも小さい。 In the present embodiment, the light guide member 401 has a size (area) of a range (referred to as an emission region) for emitting light that has passed through the second opening 52, and an emission of light that has passed through the third opening 53. The size of the area is the same. Then, in the light guide member 401, the size and brightness of the light emitting region that has passed through the second opening 52 and the third opening 53 becomes larger and brighter than the light emitting region that has passed through the first opening 51. I have to. In order to make the size and brightness of the light emitting area of the light guide member 401 different when the LED emits light, in the present embodiment, the opening area of the first opening 51 is changed to the opening area of the second opening 52 and the third opening. It is different from the opening area of 53. Specifically, the opening area of the first opening 51 is smaller than that of the second opening 52 (and the third opening 53).

本実施形態の場合、画像形成装置１の起動状況として電源オン状態を表示するために、第一ＬＥＤ６１を点灯させ、第一開口部５１を通過する光を導光部材４０１のうちの一部から出射させる。また、画像形成装置１の動作状況として正常状態を表示するために、第三ＬＥＤ６３を点灯（又は点滅）させ、第三開口部５３を通過する光を導光部材４０１のうちの一部から出射させる。さらに、画像形成装置１の動作状況としてエラー状態を表示するために、第二ＬＥＤ６２を点灯（又は点滅）させ、第二開口部５２を通過する光を導光部材４０１のうちの一部から出射させる。導光部材４０１において、第一ＬＥＤ６１を点灯させた場合と、第二ＬＥＤ６２を点灯させた場合と、第三ＬＥＤ６３を点灯させた場合とで、導光部材４０１における光の出射面はそれぞれ異なる。こうして、画像形成装置１の電源オン状態、正常状態、エラー状態に応じて、導光部材４０１の異なる箇所から光を出射させるようにしている。また、その際には、画像形成装置１の電源オン状態、正常状態、エラー状態に応じて出射領域の大きさや発光色を異ならせている。特に、同じ色（ここでは緑色）で光る画像形成装置１の電源オン状態と正常状態とでは、出射領域の大きさを異ならせている。 In the case of the present embodiment, in order to display the power-on state as the activation status of the image forming apparatus 1, the first LED 61 is turned on, and the light passing through the first opening 51 is emitted from a part of the light guide member 401. Make it emit. Further, in order to display the normal state as the operating status of the image forming apparatus 1, the third LED 63 is turned on (or blinks), and the light passing through the third opening 53 is emitted from a part of the light guide member 401. Let me. Further, in order to display an error state as the operating status of the image forming apparatus 1, the second LED 62 is turned on (or blinks), and the light passing through the second opening 52 is emitted from a part of the light guide member 401. Let me. In the light guide member 401, the light emitting surface of the light guide member 401 is different depending on whether the first LED 61 is turned on, the second LED 62 is turned on, or the third LED 63 is turned on. In this way, light is emitted from different parts of the light guide member 401 according to the power-on state, the normal state, and the error state of the image forming apparatus 1. At that time, the size of the emission region and the emission color are changed according to the power-on state, the normal state, and the error state of the image forming apparatus 1. In particular, the size of the emission region is different between the power-on state and the normal state of the image forming apparatus 1 that shines in the same color (green in this case).

そして、外装部材５０には長手方向に関し、第一開口部５１と第二開口部５２の間に、外装部材５０から発光部６０側（発光部側）に向けて突出する被係合部（第三被係合部５７）が設けられている。また、外装部材５０には長手方向に関し、第二開口部５２と第三開口部５３との間に、外装部材５０から発光部６０側（発光部側）に向けて突出する被係合部（第三被係合部５６）が設けられている。これら被係合部（５６、５７）は、導光部材４０１が外装部材５０に装着される際に、導光部材４０１に設けられている係合部に係合される。詳しくは後述する。 Then, in the longitudinal direction of the exterior member 50, an engaged portion (the first) that protrudes from the exterior member 50 toward the light emitting portion 60 side (light emitting portion side) between the first opening 51 and the second opening 52. The three engaged portions 57) are provided. Further, the exterior member 50 has an engaged portion (engaged portion) protruding from the exterior member 50 toward the light emitting portion 60 side (light emitting portion side) between the second opening 52 and the third opening 53 in the longitudinal direction. A third engaged portion 56) is provided. These engaged portions (56, 57) are engaged with the engaging portions provided on the light guide member 401 when the light guide member 401 is mounted on the exterior member 50. Details will be described later.

次に、外装部材５０に着脱自在な導光部材４０１について、図７（ａ）乃至図８を用いて説明する。図７（ａ）及び図７（ｂ）に示すように、本実施形態の導光部材４０１は、発光部６０の光を出射する出射面を有する本体部４９と、装着される際に外装部材５０に係合する弾性変形可能な第一係合部４５、第二係合部４８、第三係合部４６、４７を有する。また、導光部材４０１には、導光部材４０１を外装部材５０の所定位置に固定するための規制部４４が第二係合部４８と第三係合部４７との間に設けられている。 Next, the light guide member 401 that can be attached to and detached from the exterior member 50 will be described with reference to FIGS. 7A to 8. As shown in FIGS. 7 (a) and 7 (b), the light guide member 401 of the present embodiment has a main body 49 having an exit surface that emits light from the light emitting unit 60, and an exterior member when mounted. It has an elastically deformable first engaging portion 45, a second engaging portion 48, and a third engaging portion 46, 47 that engage with 50. Further, the light guide member 401 is provided with a regulating portion 44 for fixing the light guide member 401 at a predetermined position of the exterior member 50 between the second engaging portion 48 and the third engaging portion 47. ..

これら係合部（４５〜４８）と規制部４４とは、本体部４９の裏面（即ち、開口部を通過した光が入射する面）から突出するように本体部４９に一体的に構成されており、本体部４９と共に導光体を形成している。第一係合部４５、第三係合部４６、４７は先端が挿入方向（装着時に先端が先行して挿入される方向、図中矢印Ｘ方向）に曲げられた断面略Ｌ字状に形成され、第二係合部４８は先端が挿入方向と反対側に突起した鉤状に形成されている。本実施形態では、導光部材４０１の長手方向に関し、第一係合部４５が一端側に、第二係合部４８が他端側に、第三係合部４６、４７が第一係合部４５と第二係合部４８との間に、それぞれ設けられている。なお、第三係合部４６、４７は、第一係合部４５と第二係合部４８との間に、ほぼ同じ間隔を空けて配置されるのが好ましい。ただし、後述するように、第三係合部４６、４７は導光部材４０１の出射面に影が映らないように形成するのが好ましいので、それを優先する場合には等間隔でなくてもよい。 These engaging portions (45 to 48) and the regulating portion 44 are integrally configured in the main body portion 49 so as to project from the back surface of the main body portion 49 (that is, the surface on which the light passing through the opening is incident). A light guide body is formed together with the main body 49. The first engaging portion 45 and the third engaging portions 46, 47 are formed in a substantially L-shaped cross section in which the tip is bent in the insertion direction (the direction in which the tip is inserted first at the time of mounting, the direction of arrow X in the figure). The second engaging portion 48 is formed in the shape of a hook whose tip protrudes on the side opposite to the insertion direction. In the present embodiment, with respect to the longitudinal direction of the light guide member 401, the first engaging portion 45 is on one end side, the second engaging portion 48 is on the other end side, and the third engaging portions 46 and 47 are first engaged. It is provided between the portion 45 and the second engaging portion 48, respectively. The third engaging portions 46 and 47 are preferably arranged between the first engaging portion 45 and the second engaging portion 48 with substantially the same distance. However, as will be described later, it is preferable that the third engaging portions 46 and 47 are formed so that shadows are not reflected on the exit surface of the light guide member 401. Good.

図８に、導光部材４０１が外装部材５０に装着された状態を示す。図８に示すように、外装部材５０は、第一係合部４５と係合する第一被係合部５５、第二係合部４８と係合する第二被係合部５８、第三係合部４６、４７とそれぞれ係合する第三被係合部５６、５７を有する。そして、外装部材５０において導光部材４０１の長手方向に関し、第三開口部５３の両端に第一被係合部５５と第三被係合部５６がそれぞれ配設され、第二開口部５２の両端に第三被係合部５６と第三被係合部５７がそれぞれ配設されるようにしている。第三被係合部５６、５７は外装部材５０から発光部６０側へ向けて（出射面側から入射面側へ向けて）突出するように、第三係合部４６、４７と係合可能に、挿入方向（図中矢印Ｘ方向）と反対に曲げられた断面略Ｌ字状に形成されている。 FIG. 8 shows a state in which the light guide member 401 is attached to the exterior member 50. As shown in FIG. 8, the exterior member 50 includes a first engaged portion 55 that engages with the first engaging portion 45, a second engaged portion 58 that engages with the second engaging portion 48, and a third. It has third engaged portions 56 and 57 that engage with the engaging portions 46 and 47, respectively. Then, in the exterior member 50, the first engaged portion 55 and the third engaged portion 56 are respectively arranged at both ends of the third opening 53 in the longitudinal direction of the light guide member 401, and the second opening 52 A third engaged portion 56 and a third engaged portion 57 are arranged at both ends, respectively. The third engaged portions 56 and 57 can be engaged with the third engaged portions 46 and 47 so as to project from the exterior member 50 toward the light emitting portion 60 side (from the emitting surface side toward the incident surface side). Is formed in a substantially L-shaped cross section bent in the direction opposite to the insertion direction (arrow X direction in the figure).

本実施形態の場合、導光部材４０１を外装部材５０に装着する際には、第一係合部４５が第三開口部５３に侵入し、第三係合部４６が第二開口部５２に侵入する。また、第三係合部４７が第二開口部５２と第一開口部５１との間に設けられている第一装着孔５１０に侵入し、第二係合部４８が第二装着孔５１２に侵入する。さらに、規制部４４は第一開口部５１と第二装着孔５１２との間に設けられている規制孔５１１に嵌められる。なお、規制孔５１１は規制部４４がぴったりと嵌合するように形成されている。 In the case of the present embodiment, when the light guide member 401 is attached to the exterior member 50, the first engaging portion 45 penetrates into the third opening 53, and the third engaging portion 46 enters the second opening 52. invade. Further, the third engaging portion 47 penetrates into the first mounting hole 510 provided between the second opening 52 and the first opening 51, and the second engaging portion 48 enters the second mounting hole 512. invade. Further, the regulating portion 44 is fitted into the regulating hole 511 provided between the first opening 51 and the second mounting hole 512. The regulation hole 511 is formed so that the regulation portion 44 fits snugly.

次に、ユーザが導光部材４０１を外装部材５０へ装着する過程について、図８乃至図９（ｃ）を参照して説明する。まず、図９（ａ）に示すように、ユーザは導光部材４０１の第二係合部４８側を把持し持ち上げた状態で、第一係合部４５を第三開口部５３に侵入させる。そして、ユーザは第一係合部４５を第一被係合部５５へと係合させるように、導光部材４０１を挿入方向（図中矢印Ｘ方向）へ動かす。この際に、ユーザは第三係合部４６を第二開口部５２に、第三係合部４７を第一装着孔５１０に侵入させるように、導光部材４０１を外装部材５０側に向けて押し込みながらスライド移動する。 Next, a process in which the user attaches the light guide member 401 to the exterior member 50 will be described with reference to FIGS. 8 to 9 (c). First, as shown in FIG. 9A, the user inserts the first engaging portion 45 into the third opening 53 while grasping and lifting the second engaging portion 48 side of the light guide member 401. Then, the user moves the light guide member 401 in the insertion direction (arrow X direction in the drawing) so as to engage the first engaging portion 45 with the first engaged portion 55. At this time, the user directs the light guide member 401 toward the exterior member 50 so that the third engaging portion 46 enters the second opening 52 and the third engaging portion 47 enters the first mounting hole 510. Slide while pushing.

ユーザにより外装部材５０側に向けて押し込みながらスライド移動されると、導光部材４０１は弾性変形して一時的に図９（ｂ）に示す状態になる。即ち、導光部材４０１は挿入方向から見て、第一係合部４５が第一被係合部５５に重なり合う位置に、第三係合部４６が第三被係合部５６に重なり合う位置に、第三係合部４７が第三被係合部５７に重なり合う位置に、それぞれ位置づけられた状態となる。ただし、上記の係合部（４５、４６、４７）のいずれもが、対応する被係合部（５５、５６、５７）に係合していない。また、このとき、ユーザにより持ち上げられている第二係合部４８側では、第二係合部４８が外装部材５０に乗り上げた状態である。 When the user slides the light guide member 401 while pushing it toward the exterior member 50 side, the light guide member 401 is elastically deformed to temporarily enter the state shown in FIG. 9B. That is, the light guide member 401 is located at a position where the first engaging portion 45 overlaps the first engaged portion 55 and at a position where the third engaging portion 46 overlaps the third engaged portion 56 when viewed from the insertion direction. , The third engaging portion 47 is positioned at a position where it overlaps with the third engaged portion 57, respectively. However, none of the above engaging portions (45, 46, 47) are engaged with the corresponding engaged portions (55, 56, 57). Further, at this time, on the side of the second engaging portion 48 lifted by the user, the second engaging portion 48 is in a state of riding on the exterior member 50.

上記の図９（ｂ）に示した状態から、ユーザによって導光部材４０１がさらに挿入方向にスライド移動されると、図９（ｃ）に示す状態になる。即ち、第一係合部４５が第一被係合部５５に、第三係合部４６が第三被係合部５６に、第三係合部４７が第三被係合部５７にそれぞれ係合し、導光部材４０１のそれ以上の挿入方向の移動が規制される。このとき、第二係合部４８は第二被係合部５８との係合を開始する。また、規制部４４は規制孔５１１との嵌合を開始する。 When the light guide member 401 is further slid in the insertion direction by the user from the state shown in FIG. 9B, the state shown in FIG. 9C is obtained. That is, the first engaging portion 45 is attached to the first engaged portion 55, the third engaging portion 46 is attached to the third engaged portion 56, and the third engaging portion 47 is attached to the third engaged portion 57. Engagement restricts further movement of the light guide member 401 in the insertion direction. At this time, the second engaging portion 48 starts engaging with the second engaged portion 58. Further, the regulation unit 44 starts fitting with the regulation hole 511.

そして、図８に示すように、導光部材４０１は外装部材５０に装着される。このとき、ユーザにより第二係合部４８が第二装着孔５１２に押し込まれることに応じて、第二係合部４８が第二被係合部５８と係合し、また規制部４４が規制孔５１１に嵌合する。これにより、第一係合部４５が第一被係合部５５に、第三係合部４６が第三被係合部５６に、第三係合部４７が第三被係合部５７にそれぞれ係合した状態に維持されて、導光部材４０１が外装部材５０に装着される。本実施形態の場合、装着状態で導光部材４０１の裏面（入射面）とＬＥＤ（６１〜６３）との距離が一定に維持される。なお、導光部材４０１を外装部材５０から取り外すときには、上記した装着手順と反対の手順に従えばよいので、その説明は省略する。 Then, as shown in FIG. 8, the light guide member 401 is attached to the exterior member 50. At this time, in response to the user pushing the second engaging portion 48 into the second mounting hole 512, the second engaging portion 48 engages with the second engaged portion 58, and the regulating portion 44 regulates. Fits into hole 511. As a result, the first engaging portion 45 becomes the first engaged portion 55, the third engaging portion 46 becomes the third engaged portion 56, and the third engaging portion 47 becomes the third engaged portion 57. The light guide member 401 is attached to the exterior member 50 while being maintained in an engaged state. In the case of the present embodiment, the distance between the back surface (incident surface) of the light guide member 401 and the LEDs (61 to 63) is kept constant in the mounted state. When the light guide member 401 is removed from the exterior member 50, the procedure opposite to the mounting procedure described above may be followed, and the description thereof will be omitted.

ところで、ユーザは導光部材４０１の発光状態を視認して画像形成装置１の起動状況や動作状況を把握し得る。したがって、導光部材４０１から出射される光のユーザ視認性を向上するためには、出射領域に影が映り込むことを抑制するのが好ましい。そこで、本実施形態では、導光部材４０１が外装部材５０に装着された状態で（図８参照）、発光部６０から光が発せられた場合に、少なくとも第三係合部４６、４７の影が出射領域に映らないようにしている。ここでは、第三係合部４６、４７は、発光部６０から光が発せられたときに、導光部材４０１の表面（出射面）に影が映らないように配設されている。以下、図１０乃至図１４を用いて説明する。 By the way, the user can visually recognize the light emitting state of the light guide member 401 and grasp the activation state and the operation state of the image forming apparatus 1. Therefore, in order to improve the user visibility of the light emitted from the light guide member 401, it is preferable to suppress the reflection of shadows in the emission region. Therefore, in the present embodiment, when light is emitted from the light emitting unit 60 in a state where the light guide member 401 is attached to the exterior member 50 (see FIG. 8), at least the shadows of the third engaging portions 46 and 47 are formed. Is not reflected in the emission area. Here, the third engaging portions 46 and 47 are arranged so that shadows are not reflected on the surface (emission surface) of the light guide member 401 when light is emitted from the light emitting portion 60. Hereinafter, it will be described with reference to FIGS. 10 to 14.

図１０に示すように、第二ＬＥＤ６２からは導光部材４０１の裏面（入射面）に向かって光が照射される。第二ＬＥＤ６２による光の照射角度を「θ」とした場合に、ユーザが導光部材４０１の表面（出射面）から視認できる出射領域の長手方向長さを「Ｌ」で示す。図１０から理解できるように、第三係合部４６、４７は、第二ＬＥＤ６２の照射角度θの内側に存在しないように、導光部材４０１に配設されている。こうすると、出射領域の範囲内に第三係合部４６、４７並びに第三被係合部５６、５７などの光を遮蔽する物が存在しないため、導光部材４０１の出射領域に影が映り込むことを抑制できる。また、ここでは図示を省略したが、第三係合部４６はさらに第三ＬＥＤ６３の照射角度の内側に存在しないように、第三係合部４７はさらに第一ＬＥＤ６１の照射角度の内側に存在しないように、それぞれが導光部材４０１に配設されている。 As shown in FIG. 10, light is emitted from the second LED 62 toward the back surface (incident surface) of the light guide member 401. When the irradiation angle of the light by the second LED 62 is “θ”, the length in the longitudinal direction of the emission region that can be visually recognized by the user from the surface (emission surface) of the light guide member 401 is indicated by “L”. As can be understood from FIG. 10, the third engaging portions 46 and 47 are arranged on the light guide member 401 so as not to exist inside the irradiation angle θ of the second LED 62. In this way, since there are no objects such as the third engaging portions 46, 47 and the third engaged portions 56, 57 that block light within the range of the emitting region, a shadow is reflected in the emitting region of the light guide member 401. It can suppress the crowding. Further, although not shown here, the third engaging portion 47 is further inside the irradiation angle of the first LED 61 so that the third engaging portion 46 is not further inside the irradiation angle of the third LED 63. Each is arranged in the light guide member 401 so as not to prevent.

＜出射領域の明るさについて＞
発明者らは本実施形態の導光部材４０１に関し、代表として第二開口部５２を通過した光が出射される導光部材４０１の出射領域の明るさを測定した。なお、発明者らは、第一開口部５１、第三開口部５３を通過した光が出射される導光部材４０１の出射領域の明るさについても測定したが、照度の大きさを除きほぼ同様の測定結果であったことから、ここでは図示及び説明をしている。 <Brightness in the emission area>
With respect to the light guide member 401 of the present embodiment, the inventors have measured the brightness of the emission region of the light guide member 401 to which the light passing through the second opening 52 is emitted as a representative. The inventors also measured the brightness of the emission region of the light guide member 401 from which the light passing through the first opening 51 and the third opening 53 is emitted, but the brightness is almost the same except for the magnitude of the illuminance. Since it was the measurement result of, here, it is illustrated and explained.

まず、測定器９０を用いた出射領域の明るさ測定の方法について、図１１を用いて説明する。出射領域の明るさ測定は測定器９０を用いて、第二開口部５２を通過した光の出射領域の明るさを測定した。測定器９０は、図１１に示すように、第二開口部５２を通過した光を出射する出射領域に対向するように配置される。測定器９０は、検知部９１が測定対象の出射領域に接触された状態で、導光部材４０１の長手方向に沿って移動される。そして、長手方向の異なる位置で出射領域の明るさが測定される。ここでは、所定間隔（例えば６ｍｍ）毎に複数の測定位置（９か所）で出射領域の明るさを測定した。なお、測定器９０は「デジタル照度計Ｔ−１Ｍ」（コニカミノルタ株式会社）を用い、また測定環境の明るさを「０．１４ルクス」とした。また、本実施形態における出射領域の「最大発光可能位置Ｌ１」から第三係合部４６までの距離である「係合部端部距離Ｌ２」は、「約２．９ｍｍ」であった。 First, a method of measuring the brightness of the emission region using the measuring instrument 90 will be described with reference to FIG. The brightness of the emission region was measured by using a measuring instrument 90 to measure the brightness of the emission region of the light passing through the second opening 52. As shown in FIG. 11, the measuring instrument 90 is arranged so as to face the exit region that emits the light that has passed through the second opening 52. The measuring instrument 90 is moved along the longitudinal direction of the light guide member 401 with the detection unit 91 in contact with the emission region to be measured. Then, the brightness of the emission region is measured at different positions in the longitudinal direction. Here, the brightness of the emission region was measured at a plurality of measurement positions (9 points) at predetermined intervals (for example, 6 mm). The measuring instrument 90 used was a "digital illuminance meter T-1M" (Konica Minolta Co., Ltd.), and the brightness of the measuring environment was set to "0.14 lux". Further, the "engagement portion end distance L2", which is the distance from the "maximum light emitting position L1" of the emission region in the present embodiment to the third engaging portion 46, was "about 2.9 mm".

上記した導光部材４０１の出射領域の明るさ測定の結果を、図１２及び図１３に示す。図１２、図１３に示すように、第二ＬＥＤ６２の直上である測定箇所「Ｎｏ５」が最大照度となり、そこから左右に配置されている第三係合部４６、４７に近づくにつれて照度が低くなっている。本実施形態の場合、第三係合部４６の端部は測定箇所「Ｎｏ８」と「Ｎｏ９」の間に存在する。測定箇所「Ｎｏ８」の測定結果が「２．０ルクス」であるため、出射領域の「最大発光可能位置Ｌ１」における照度は「２．０ルクス」以下である。最大照度である測定箇所「Ｎｏ５」の照度を基準とすると、測定箇所「Ｎｏ８」の照度は図１３に示すように「０．０５５倍」となり非常に低い。そして、ユーザは、出射領域が照度「５．０ルクス以下（照射角が約５４°以上）」で例え発光していたとしても、その範囲については発光していると認識し難い（つまりは発光していることを視認し得ない）。したがって、第三係合部４６、４７は、導光部材４０１における発光部６０から発せられた光の照度（出射領域の照度）が「５．０ルクス」以下である位置に配設されるとよい。こうすると、発光部６０から光が発せられたときに、出射領域の照度が「５．０ルクス」より大きい範囲では出射領域に影が映らず明るさを確保できるので好ましい。 The results of the brightness measurement of the emission region of the light guide member 401 are shown in FIGS. 12 and 13. As shown in FIGS. 12 and 13, the measurement point “No. 5” directly above the second LED 62 has the maximum illuminance, and the illuminance decreases as it approaches the third engaging portions 46 and 47 arranged on the left and right from there. ing. In the case of the present embodiment, the end portion of the third engaging portion 46 exists between the measurement points “No8” and “No9”. Since the measurement result of the measurement point "No. 8" is "2.0 lux", the illuminance at the "maximum light emitting position L1" in the emission region is "2.0 lux" or less. Based on the illuminance of the measurement point "No. 5" which is the maximum illuminance, the illuminance of the measurement point "No. 8" is "0.055 times" as shown in FIG. 13, which is very low. Then, even if the emission region emits light at an illuminance of "5.0 lux or less (irradiation angle is about 54 ° or more)", it is difficult for the user to recognize that the light is emitted in that range (that is, light emission). I can't see what I'm doing). Therefore, the third engaging portions 46 and 47 are arranged at positions where the illuminance of the light emitted from the light emitting portion 60 of the light guide member 401 (the illuminance of the emission region) is "5.0 lux" or less. Good. This is preferable because when the light is emitted from the light emitting unit 60, no shadow is projected in the emission region and the brightness can be ensured in the range where the illuminance in the emission region is larger than "5.0 lux".

なお、発光源である第二ＬＥＤ６２（第一ＬＥＤ６１、第三ＬＥＤ６３も同様）は、図１４に示すような指向性（発光ピーク値を１００％としたときの各スキャン角度における光の相対強度）を有している。上述した第二ＬＥＤ６２の照射角度θは、導光部材４０１の出射領域としてユーザが視認可能な光の相対強度が高い照射角度である。したがって、照射角度θ以外の、光の相対強度が低い範囲に第三係合部４６、４７を配置しても、ユーザは配置していない場合と比較して出射領域の明るさの違いに気づきづらい。そのため、本実施形態では、第三係合部４６、４７が第二ＬＥＤ６２の照射角度θの内側に存在しないように、導光部材４０１に配設されてよい。 The second LED 62 (the same applies to the first LED 61 and the third LED 63), which is a light emitting source, has directivity as shown in FIG. 14 (relative intensity of light at each scan angle when the light emitting peak value is 100%). have. The irradiation angle θ of the second LED 62 described above is an irradiation angle having a high relative intensity of light that can be visually recognized by the user as an emission region of the light guide member 401. Therefore, even if the third engaging portions 46 and 47 are arranged in a range other than the irradiation angle θ where the relative intensity of light is low, the user notices a difference in the brightness of the emission region as compared with the case where the third engaging portions 46 and 47 are not arranged. It's hard. Therefore, in the present embodiment, the third engaging portions 46 and 47 may be arranged on the light guide member 401 so that they do not exist inside the irradiation angle θ of the second LED 62.

以上のように、本実施形態では、導光部材４０１に第一係合部４５、第二係合部４８、第三係合部４６、４７が設けられており、導光部材４０１はこれらの係合部（４５〜４８）による外装部材５０との係合により、外側から外装部材５０に着脱され得る。そして、長尺状の導光部材４０１において、第三係合部４６、４７は長手方向に関し第一係合部４５と第二係合部４８との間にそれぞれ設けられる。この場合、導光部材４０１が外装部材５０に装着された状態で、導光部材４０１の裏面（入射面）とＬＥＤ（６１〜６３）との距離が一定に維持される。こうすると、ユーザは交換前後で導光部材４０１の出射領域の明るさに差異を生じさせることなく、つまりは導光部材４０１から光を出射する場合におけるユーザ視認性を変えることなく、導光部材４０１を容易に交換することができるようになる。 As described above, in the present embodiment, the light guide member 401 is provided with the first engaging portion 45, the second engaging portion 48, and the third engaging portions 46, 47, and the light guide member 401 is provided with these. By engaging with the exterior member 50 by the engaging portion (45 to 48), the exterior member 50 can be attached to and detached from the outside. Then, in the elongated light guide member 401, the third engaging portions 46 and 47 are provided between the first engaging portion 45 and the second engaging portion 48 in the longitudinal direction, respectively. In this case, the distance between the back surface (incident surface) of the light guide member 401 and the LEDs (61 to 63) is kept constant while the light guide member 401 is mounted on the exterior member 50. In this way, the user does not make a difference in the brightness of the emission region of the light guide member 401 before and after the replacement, that is, without changing the user visibility when emitting light from the light guide member 401. The 401 can be easily replaced.

なお、上述した図４（ａ）及び図４（ｂ）に示すように、導光部材４０１は操作パネル部３０がどのような傾斜角に角度調整された場合であっても、常に表示器７０よりも手前側に位置するように表示器７０に設けられるのが好ましい。また、上述した図５に示すように、導光部材４０１は、光が出射する第二面と表示器７０の表面とのなす角が鋭角となるように、外装部材５０に斜めに取り付けられるのが好ましい。こうすると、操作パネル部３０が角度調整により図４（ａ）及び図４（ｂ）含むどのような角度に傾けられたとしても、導光部材４０１は常にユーザに近い手前側にあるので、どのユーザにとっても導光部材４０１の発光状態が見やすくなるので有利である。 As shown in FIGS. 4A and 4B described above, the light guide member 401 always displays the display 70 regardless of the inclination angle of the operation panel portion 30. It is preferable that the display 70 is provided so as to be located closer to the front side. Further, as shown in FIG. 5 described above, the light guide member 401 is obliquely attached to the exterior member 50 so that the angle formed by the second surface from which light is emitted and the surface of the display 70 is an acute angle. Is preferable. In this way, no matter what angle the operation panel unit 30 is tilted by adjusting the angle, including FIGS. 4A and 4B, the light guide member 401 is always on the front side close to the user. It is also advantageous for the user because the light emitting state of the light guide member 401 can be easily seen.

＜他の実施形態＞
なお、外装部材５０には長手方向に関し、第一開口部５１と第二開口部５２との間に、また第二開口部５２と第三開口部５３との間に、外装部材５０から発光部６０側（発光部側）に向けて突出する第一、第二の遮光用リブが設けられると好ましい。第一の遮光用リブ（遮光用突出部）は、第一ＬＥＤ６１からの光が第二開口部５２を通過するのを低減するため、また第二ＬＥＤ６２からの光が第一開口部５１を通過するのを低減するために設けられる。第二の遮光用リブ（遮光用突出部）は、第二ＬＥＤ６２からの光が第三開口部５３を通過するのを低減し、また第三ＬＥＤ６３からの光が第二開口部５２を通過するのを低減するために設けられる。これら第一、第二の遮光用リブを設けると、発光部６０において隣り合って配置されたＬＥＤが異なる色で発光するものである場合には、導光部材４０１から出射する光の色が混ざることを抑制できるので有利である。また、発光部６０において隣り合って配置されたＬＥＤが同じ色で発光するものである場合には、導光部材４０１の出射領域の明るさを調整しやすくなるので有利である。 <Other Embodiments>
The exterior member 50 has a light emitting portion from the exterior member 50 in the longitudinal direction between the first opening 51 and the second opening 52 and between the second opening 52 and the third opening 53. It is preferable that the first and second light-shielding ribs projecting toward the 60 side (light emitting portion side) are provided. The first light-shielding rib (light-shielding protrusion) reduces the light from the first LED 61 from passing through the second opening 52, and the light from the second LED 62 passes through the first opening 51. It is provided to reduce the amount of light. The second light-shielding rib (light-shielding protrusion) reduces the light from the second LED 62 passing through the third opening 53, and the light from the third LED 63 passes through the second opening 52. It is provided to reduce the amount of light. When these first and second light-shielding ribs are provided, the colors of the light emitted from the light guide member 401 are mixed when the LEDs arranged adjacent to each other in the light emitting unit 60 emit light in different colors. It is advantageous because it can suppress this. Further, when the LEDs arranged adjacent to each other in the light emitting unit 60 emit light in the same color, it is advantageous because the brightness of the emission region of the light guide member 401 can be easily adjusted.

このような第一、第二の遮光用リブが設けられている場合に、第一の遮光用リブに導光部材４０１の第三係合部４６を係合させ、第二の遮光用リブに導光部材４０１の第三係合部４７を係合させるのが好ましい。言い換えれば、上述した図８に示すように、第三被係合部５６、５７が、第一開口部５１と第二開口部５２の間、また第二開口部５２と第三開口部５３との間に配設され、上記の機能を有する遮光用リブを兼ねるようにしてよい。 When such first and second light-shielding ribs are provided, the third engaging portion 46 of the light guide member 401 is engaged with the first light-shielding rib to form the second light-shielding rib. It is preferable to engage the third engaging portion 47 of the light guide member 401. In other words, as shown in FIG. 8 described above, the third engaged portions 56 and 57 are located between the first opening 51 and the second opening 52, and between the second opening 52 and the third opening 53. It may be arranged between the above and also serve as a light-shielding rib having the above-mentioned function.

なお、上述した画像形成装置１では、発光表示装置４０を表示器７０と一体的に設けた場合を例に説明したがこれに限らず、例えば操作パネル部３０から発光表示装置４０を着脱自在に構成してもよい。また、図１に鎖線で示すような装置本体１０の正面側の位置に、本実施形態の発光表示装置（４０Ｂ、４０Ｃ）が設けられていてもよい。 In the image forming apparatus 1 described above, the case where the light emitting display device 40 is provided integrally with the display device 70 has been described as an example, but the present invention is not limited to this, and for example, the light emitting display device 40 can be detachably attached to and detached from the operation panel unit 30. It may be configured. Further, the light emitting display device (40B, 40C) of the present embodiment may be provided at a position on the front side of the device main body 10 as shown by a chain line in FIG.

１…画像形成装置、４０（４０Ｂ、４０Ｃ）…表示装置（発光表示装置）、４５…第一係合部、４６（４７）…第三係合部、４８…第二係合部、５０…外装部材、５１…開口部（第一開口部）、５２…開口部（第二開口部）、５６（５７）…第三被係合部（遮光用突出部、遮光用リブ）、５９…遮光部、６０…発光部、６１…第一発光素子（第一ＬＥＤ）、６２…第二発光素子（第二ＬＥＤ）、７０…表示器、８０…揺動支持手段（揺動支持部材）、１０１…画像形成部、４０１…導光部材
1 ... Image forming apparatus, 40 (40B, 40C) ... Display device (light emitting display device), 45 ... First engaging portion, 46 (47) ... Third engaging portion, 48 ... Second engaging portion, 50 ... Exterior member, 51 ... opening (first opening), 52 ... opening (second opening), 56 (57) ... third engaged part (light-shielding protrusion, light-shielding rib), 59 ... light-shielding Unit, 60 ... light emitting unit, 61 ... first light emitting element (first LED), 62 ... second light emitting element (second LED), 70 ... display, 80 ... rocking support means (rocking support member), 101 … Image forming part, 401… Light guide member

Claims

A light emitting part that emits light and
An exterior member arranged outside the light emitting portion and having a light-shielding portion that does not allow light emitted from the light emitting portion to pass outside, and an opening that allows light emitted from the light emitting portion to pass outward.
The exterior member is detachably provided so as to close the opening from the outside, and the light that has passed through the opening incident from the first surface is converted into diffused light, and the second surface opposite to the first surface. Equipped with a long light guide member that emits light from
The light guide member has a first engaging portion provided on one end side, a second engaging portion provided on the other end side, and the first engaging portion in the longitudinal direction in order to be attached to the exterior member. It has a third engaging portion provided between the joint portion and the second engaging portion,
A display device characterized by that.

A light emitting unit in which the first light emitting element and the second light emitting element are provided at intervals,
A light-shielding unit that is arranged outside the light-emitting unit and does not allow light emitted from each of the first light-emitting element and the second light-emitting element to pass outside, and a third light emitting element that allows light emitted from the first light-emitting element to pass outside. An exterior member having one opening and a second opening for passing light emitted from the second light emitting element to the outside.
The exterior member is detachably provided so as to close the first opening and the second opening from the outside, and the light passing through the first opening incident from the first surface and the second opening are separated from each other. It is provided with a long light guide member that converts the passed light into diffused light and emits it from the second surface opposite to the first surface.
The light guide member has a first engaging portion provided on one end side, a second engaging portion provided on the other end side, and the first engaging portion in the longitudinal direction in order to be attached to the exterior member. It has a third engaging portion provided between the joint portion and the second engaging portion,
A display device characterized by that.

The third engaging portion is arranged so as not to cast a shadow on the light guide member when light is emitted from the light emitting portion in a state of being attached to the exterior member.
The display device according to claim 1 or 2.

The third engaging portion is arranged at a position where the illuminance of the light in the light guide member is 5.0 lux or less when the light is emitted from the light emitting portion.
The display device according to claim 3, wherein the display device is characterized by the above.

In the exterior member, light from the first light emitting element is emitted between the first opening and the second opening with respect to the arrangement direction of the first light emitting element and the second light emitting element in the light emitting portion. A light-shielding projecting portion that projects toward the light emitting portion side in order to reduce passing through the second opening and to reduce light from the second light emitting element from passing through the first opening. Is provided,
The third engaging portion is engaged with the light-shielding protruding portion.
2. The display device according to claim 2.

Equipped with a display capable of displaying images,
The display device according to any one of claims 1 to 5, wherein the display device is characterized by the above.

The light guide member is obliquely attached to the exterior member so that the angle formed by the second surface and the surface of the display is an acute angle.
The display device according to claim 6.

The display device according to any one of claims 1 to 5.
A display that can display the screen and
An image forming unit for forming an image on a recording material is provided.
An image forming apparatus characterized in that.

A swing support means that supports the display and can swing up and down so that the angle can be adjusted is provided.
The display device is provided on the display device so that the light guide member is located on the front side of the display device.
The image forming apparatus according to claim 8.

The display device is provided on the display device so that the angle formed by the light guide member between the second surface and the surface of the display device is an acute angle.
The image forming apparatus according to claim 9.