JP2006198886A - Image forming apparatus - Google Patents

Image forming apparatus Download PDF

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JP2006198886A
JP2006198886A JP2005012786A JP2005012786A JP2006198886A JP 2006198886 A JP2006198886 A JP 2006198886A JP 2005012786 A JP2005012786 A JP 2005012786A JP 2005012786 A JP2005012786 A JP 2005012786A JP 2006198886 A JP2006198886 A JP 2006198886A
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main body
scanning optical
positioning
optical device
image forming
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JP2005012786A
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Toshiharu Mamiya
敏晴 間宮
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Canon Inc
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Canon Inc
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  • Laser Beam Printer (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Electrophotography Configuration And Component (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that while an image reading device is provided to an upper portion of a body of an image forming apparatus such as a digital copier and a color copier and it is difficult to attach or detach a scanning optical device to the body from the upper portion so that the attaching or detaching is carried out from the side of the body, positional alignment, particularly positional alignment in the back and forth direction with respect to the insertion direction at a time when a positioning pin of the scanning optical device is inserted into a positioning hole disposed on the frame of the body, becomes difficult. <P>SOLUTION: A positioning pin for positioning the scanning optical device to the body is provided to a portion at the front side in a direction perpendicular to the insertion direction. A reflection means is provided to a portion in the vicinity of the positioning pin, and then the tip of the positioning pin and its periphery can be visually confirmed from the insertion direction through the reflection means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、レーザビームプリンタやデジタル複写機等の画像形成装置に関するものである。   The present invention relates to an image forming apparatus such as a laser beam printer or a digital copying machine.

デジタル複写機やカラー複写機などの画像形成装置では、図９に示す様に、装置本体１の上部に画像読取装置４が配置されており走査光学装置３を本体上方から着脱することは困難である。そのため走査光学装置の着脱は本体横から行うことになる。また走査光学装置の固定は上方からのビス固定も難しくバネにより取り付け部を本体フレーム９および１０に固定することになる（例えば、特許文献１参照）。
特開２００２−２３０９４号公報 In an image forming apparatus such as a digital copying machine or a color copying machine, as shown in FIG. 9, an image reading device 4 is disposed on the upper portion of the apparatus main body 1, and it is difficult to attach and detach the scanning optical device 3 from above the main body. is there. Therefore, the scanning optical device is attached / detached from the side of the main body. In addition, it is difficult to fix the scanning optical device from above, and the mounting portion is fixed to the main body frames 9 and 10 by a spring (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2002-23094

しかしながら一般に走査光学装置は本体フレーム上に位置決めされて取り付けられるため、本体フレーム９上には位置決め穴９ａ、９ｂが設けられ走査光学装置３には二本の位置決めピン３ａが下方に突出して設けられている。取り付けの際にはこの二本の位置決めピン３ａを位置決め穴９ａ、９ｂに挿入しなければならず、本体フレーム上にガイドを設けても本体横から本体中ほどに有る位置決め穴に位置決めピンを挿入する場合の位置合わせ、とくに挿入する方向から見て前後方向の位置合わせが難しくなる。   However, since the scanning optical device is generally positioned and mounted on the main body frame, positioning holes 9a and 9b are provided on the main body frame 9, and the two positioning pins 3a are provided on the scanning optical device 3 so as to protrude downward. ing. When mounting, the two positioning pins 3a must be inserted into the positioning holes 9a and 9b, and even if a guide is provided on the main body frame, the positioning pins are inserted into the positioning holes located from the side of the main body to the middle of the main body. In this case, it becomes difficult to align, particularly in the front-rear direction when viewed from the insertion direction.

本発明は、上述の課題に鑑みてなされたものであり、走査光学装置を本体横方向から取り付ける作業を容易にすることを目的としたものである。   The present invention has been made in view of the above-described problems, and an object of the present invention is to facilitate the work of attaching the scanning optical device from the lateral direction of the main body.

本発明による画像形成装置は、第一に、本体横から挿入するような画像形成装置において、走査光学装置には本体に位置決めするための位置決めピンが挿入方向に対し直角方向かつ手前側に配設されており、位置決めピン付近には反射手段を配置され、挿入方向から反射手段を介して位置決めピン先端とその周囲を目視確認可能なことを特徴とする。   In the image forming apparatus according to the present invention, first, in an image forming apparatus that is inserted from the side of the main body, the scanning optical device is provided with positioning pins for positioning on the main body in a direction perpendicular to the insertion direction and on the near side. The reflecting means is arranged in the vicinity of the positioning pin, and the distal end of the positioning pin and its periphery can be visually confirmed from the insertion direction via the reflecting means.

第二に、走査光学装置を本体横から挿入するような画像形成装置において、走査光学装置には本体に位置決めするための位置決めピンが挿入方向に対し直角方向かつ手前側に配設されており、本体上には位置決め目標を設け、走査光学装置の位置決め目標上方に対応する位置に反射手段を配置し、反射手段あるいはその近傍に指標を設け、挿入方向から反射手段を介して走査光学装置指標を本体目標に一致させると位置決めピンが位置決め穴位置に一致することを特徴とする。   Second, in an image forming apparatus in which the scanning optical device is inserted from the side of the main body, the scanning optical device is provided with a positioning pin for positioning the main body at a right angle to the insertion direction and on the near side. A positioning target is provided on the main body, the reflecting means is arranged at a position corresponding to the positioning target above the scanning optical device, an index is provided at or near the reflecting means, and the scanning optical apparatus index is set via the reflecting means from the insertion direction. When matched with the main body target, the positioning pin matches the positioning hole position.

第三に、走査光学装置を本体水平面上に取り付けるような画像形成装置において,走査光学装置には本体に位置決めするための位置決めピンが挿入方向に対し直角方向かつ手前側に配設されており、本体水平面上には位置決めピンが嵌合する穴や締結に用いられる穴のほかに走査光学装置の本体上での位置を確認するための穴または刻印あるいは突起を有することを特徴とする。   Third, in an image forming apparatus in which the scanning optical device is mounted on the horizontal surface of the main body, the scanning optical device is provided with positioning pins for positioning on the main body in a direction perpendicular to the insertion direction and on the near side. On the horizontal surface of the main body, in addition to a hole for fitting a positioning pin and a hole used for fastening, a hole, a stamp or a projection for confirming the position of the scanning optical device on the main body is provided.

本発明によれば、走査光学装置を本体横から挿入して取り付ける場合にも走査光学装置に設けられた位置決めピンと本体フレームに設けられた位置決め穴の位置合わせが直接視認可能あるいは代用部位の位置合わせを視認可能とすることで組み込み作業が確実で容易となる。   According to the present invention, even when the scanning optical device is inserted from the side of the main body and attached, the alignment between the positioning pin provided in the scanning optical device and the positioning hole provided in the main body frame can be directly visually confirmed or the substitute portion is aligned. As a result, the assembling work is surely easy.

本発明の実施の形態を図面に基づいて説明する。   Embodiments of the present invention will be described with reference to the drawings.

（第１の実施の形態）
図１、２は第１実施例による走査光学装置と画像形成装置の本体フレームを示したものである。 (First embodiment)
1 and 2 show a scanning optical device and a main body frame of the image forming apparatus according to the first embodiment.

光学箱４１に設けられた二本の位置決めピン４１ａは本体横から走査光学装置を挿入する際に手前側になるように配置され、二本の位置決めピン４１ａ近傍には反射手段であるミラー４２が配置されている。このミラー４２は本体横から走査光学装置を挿入する際に位置決めピン４１ａの先端とその付近を反射像Ｍとして見ることが可能なように配置されている。これにより反射像Ｍで位置決めピン４１ａ先端と本体フレーム９の位置決め穴９ａ、９ｂの位置が合っているかの目視確認が可能となり走査光学装置の本体組み込みが容易になる。   The two positioning pins 41a provided in the optical box 41 are arranged so as to be on the near side when the scanning optical device is inserted from the side of the main body, and a mirror 42 as a reflecting means is provided in the vicinity of the two positioning pins 41a. Has been placed. The mirror 42 is arranged so that the tip of the positioning pin 41a and its vicinity can be seen as a reflected image M when the scanning optical device is inserted from the side of the main body. As a result, it is possible to visually check whether the tip of the positioning pin 41a and the positioning holes 9a and 9b of the main body frame 9 are aligned with each other in the reflected image M, so that the main body of the scanning optical apparatus can be easily assembled.

（第２の実施の形態）
図３，４は第２の実施例を示したものである。 (Second Embodiment)
3 and 4 show a second embodiment.

光学箱５１に設けられた二本の位置決めピン５１ａの近傍には反射手段である直角プリズム５２が配置されている。直角プリズムの下面５２ａには指標５２ｃが設けられている。５２ｂは反射面となる斜面である。本体フレーム５３には位置決め穴５３ａ、５３ｂのほかに目標となる十字の刻印５３ｃがつけてあり、直角プリズム５２の斜面による反射像Ｍのより直角プリズム５２の指標５２ｃと本体フレーム５３上にある目標の十字刻印５３ｃを一致させるようにすれば走査光学装置の位置決めピン５１ａの位置が本体フレームの位置決め穴５３ａ、５３ｂに一致するように配置されている。   In the vicinity of the two positioning pins 51 a provided in the optical box 51, a right-angle prism 52 as a reflecting means is arranged. An indicator 52c is provided on the lower surface 52a of the right-angle prism. Reference numeral 52b denotes a slope serving as a reflection surface. The main body frame 53 is provided with a target cross mark 53c in addition to the positioning holes 53a and 53b, and an index 52c of the right-angle prism 52 and a target on the main body frame 53 from the reflected image M of the inclined surface of the right-angle prism 52. If the cross marks 53c are matched, the positioning pins 51a of the scanning optical device are arranged so that the positions of the positioning pins 51a coincide with the positioning holes 53a and 53b of the main body frame.

（第３の実施の形態）
図５，６は第３の実施例を示したものである。 (Third embodiment)
5 and 6 show a third embodiment.

光学箱６１に設けられた二本の位置決めピン６１ａの近傍には反射手段であるミラー６２が配置されている。光学箱６１のミラー６２の下にあたる部分には開口部６１ｂが設けられ開口部６１ｂには指標となる突起が設けられている。前述に実施例同様ミラー６２の反射像Ｍのより指標６１ｃと本体フレーム５３上にある目標の十字刻印５３ｃを一致させるようにすれば走査光学装置の位置決めピン６１ａの位置が本体フレームの位置決め穴５３ａ、５３ｂに一致するように配置されている。   In the vicinity of the two positioning pins 61a provided in the optical box 61, a mirror 62 as a reflecting means is arranged. An opening 61b is provided in a portion below the mirror 62 of the optical box 61, and a projection serving as an index is provided in the opening 61b. As described above, if the index 61c of the reflected image M of the mirror 62 and the target cross mark 53c on the main body frame 53 are made to coincide with each other, the position of the positioning pin 61a of the scanning optical device is the positioning hole 53a of the main body frame. , 53b.

（第４の実施の形態）
図７，８は第４の実施例を示したものである。 (Fourth embodiment)
7 and 8 show a fourth embodiment.

光学箱６１に設けられた二本の位置決めピン７１ａの近傍には反射手段であるミラー７２が配置されている。ミラー７２の表面には指標７２ａが印刷されている。本体フレーム７３には位置決め穴７３ａ、７３ｂのほかに目標となる穴７３ａが設けてあり、前述に実施例同様ミラー７２の反射像Ｍのより指標７２ａと本体フレーム７３上にある目標の穴７３ｃを一致させるようにすれば走査光学装置の位置決めピン７１ａの位置が本体フレームの位置決め穴に一致するように配置されている。   In the vicinity of the two positioning pins 71a provided in the optical box 61, a mirror 72 as a reflecting means is arranged. An index 72 a is printed on the surface of the mirror 72. In addition to the positioning holes 73a, 73b, the main body frame 73 is provided with a target hole 73a, and the target hole 73c on the main body frame 73 and the index 72a are reflected from the reflected image M of the mirror 72 as described above. If matched, the position of the positioning pin 71a of the scanning optical device is arranged so as to match the positioning hole of the main body frame.

第１の実施例による走査光学装置と本体フレーム。The scanning optical apparatus and main body frame by a 1st Example. 第１の実施例による走査光学装置と本体フレーム。The scanning optical apparatus and main body frame by a 1st Example. 第２の実施例による走査光学装置と本体フレーム。2 shows a scanning optical device and a main body frame according to a second embodiment. 第２の実施例による走査光学装置と本体フレーム。2 shows a scanning optical device and a main body frame according to a second embodiment. 第３の実施例による走査光学装置と本体フレーム。The scanning optical apparatus and main body frame by a 3rd Example. 第３の実施例による走査光学装置と本体フレーム。The scanning optical apparatus and main body frame by a 3rd Example. 第４の実施例による走査光学装置と本体フレーム。4 shows a scanning optical device and a main body frame according to a fourth embodiment. 第４の実施例による走査光学装置と本体フレーム。4 shows a scanning optical device and a main body frame according to a fourth embodiment. 画像形成装置を示す図。1 is a diagram illustrating an image forming apparatus.

符号の説明Explanation of symbols

１ 画像形成装置
２ 回転ドラム
３ 走査光学装置
４ 画像読取装置
５〜８ 紙収納スペース
９〜１１ 本体フレーム
３１、４１、５１、６１、７１ 光学箱
４２、６２、７２ ミラー
５２ プリズム DESCRIPTION OF SYMBOLS 1 Image forming apparatus 2 Rotating drum 3 Scanning optical apparatus 4 Image reading apparatus 5-8 Paper storage space 9-11 Main body frame 31, 41, 51, 61, 71 Optical box 42, 62, 72 Mirror 52 Prism

Claims (3)

走査光学装置を本体横から挿入するような画像形成装置において、
走査光学装置には本体に位置決めするための位置決めピンが挿入方向に対し直角方向かつ手前側に配設されており、位置決めピン付近には反射手段を配置され、挿入方向から反射手段を介して位置決めピン先端とその周囲を目視確認可能なことを特徴とする画像形成装置。 In an image forming apparatus in which a scanning optical device is inserted from the side of the main body,
In the scanning optical device, positioning pins for positioning on the main body are arranged in a direction perpendicular to the insertion direction and on the near side. Reflecting means is arranged in the vicinity of the positioning pins, and positioning is performed from the inserting direction via the reflecting means. An image forming apparatus characterized in that a tip of a pin and its periphery can be visually confirmed. 走査光学装置を本体横から挿入するような画像形成装置において、
走査光学装置には本体に位置決めするための位置決めピンが挿入方向に対し直角方向かつ手前側に配設されており、本体上には位置決め目標を設け、走査光学装置の位置決め目標上方に対応する位置に反射手段を配置し、反射手段あるいはその近傍に指標を設け、挿入方向から反射手段を介して走査光学装置指標を本体目標に一致させると位置決めピンが位置決め穴位置に一致することを特徴とする画像形成装置。 In an image forming apparatus in which a scanning optical device is inserted from the side of the main body,
In the scanning optical device, positioning pins for positioning on the main body are arranged in a direction perpendicular to the insertion direction and on the near side, a positioning target is provided on the main body, and a position corresponding to above the positioning target of the scanning optical device The reflecting means is disposed on the reflecting means, and an index is provided at or near the reflecting means. When the scanning optical apparatus index is matched with the target of the main body through the reflecting means from the insertion direction, the positioning pin matches the positioning hole position. Image forming apparatus. 走査光学装置を本体水平面上に取り付けるような画像形成装置において、
走査光学装置には本体に位置決めするための位置決めピンが挿入方向に対し直角方向かつ手前側に配設されており、本体水平面上には位置決めピンが嵌合する穴や締結に用いられる穴のほかに走査光学装置の本体上での位置を確認するための穴または刻印あるいは突起を有することを特徴とする画像形成装置。 In an image forming apparatus in which a scanning optical device is mounted on a horizontal surface of the main body,
In the scanning optical device, positioning pins for positioning on the main body are arranged in a direction perpendicular to the insertion direction and on the near side. In addition to holes for fitting the positioning pins and holes used for fastening on the horizontal surface of the main body An image forming apparatus comprising a hole, a marking or a protrusion for confirming a position of the scanning optical device on the main body.
JP2005012786A 2005-01-20 2005-01-20 Image forming apparatus Withdrawn JP2006198886A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8339436B2 (en) 2009-11-19 2012-12-25 Fuji Xerox Co., Ltd. Exposure unit containment mechanism and image-forming apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8339436B2 (en) 2009-11-19 2012-12-25 Fuji Xerox Co., Ltd. Exposure unit containment mechanism and image-forming apparatus

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