JP5063170B2 - Optical scanning apparatus and image forming apparatus - Google Patents

Optical scanning apparatus and image forming apparatus Download PDF

Info

Publication number
JP5063170B2
JP5063170B2 JP2007108295A JP2007108295A JP5063170B2 JP 5063170 B2 JP5063170 B2 JP 5063170B2 JP 2007108295 A JP2007108295 A JP 2007108295A JP 2007108295 A JP2007108295 A JP 2007108295A JP 5063170 B2 JP5063170 B2 JP 5063170B2
Authority
JP
Japan
Prior art keywords
optical box
optical
side wall
elastic member
cover member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2007108295A
Other languages
Japanese (ja)
Other versions
JP2008268348A5 (en
JP2008268348A (en
Inventor
正樹 佐藤
貴之 水田
拓 室谷
慎 古森
健一 冨田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2007108295A priority Critical patent/JP5063170B2/en
Publication of JP2008268348A publication Critical patent/JP2008268348A/en
Publication of JP2008268348A5 publication Critical patent/JP2008268348A5/ja
Application granted granted Critical
Publication of JP5063170B2 publication Critical patent/JP5063170B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Laser Beam Printer (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Fax Reproducing Arrangements (AREA)

Description

本発明は、電子写真方式を用いるプリンタ、ファクシミリ、複写機等の画像形成装置に用いられる光学走査装置、及びこれを備える画像形成装置に関する。   The present invention relates to an optical scanning device used in an image forming apparatus such as a printer, a facsimile machine, and a copying machine using an electrophotographic system, and an image forming apparatus including the same.

従来より、複数のレーザ光源からレーザ光を射出して、各々のレーザ光源に対応して設けられる像担持体としての感光体の表面を偏向走査し、感光体の表面に静電潜像を形成する光学走査装置、またはこれを備える画像形成装置が知られている。   Conventionally, laser light is emitted from a plurality of laser light sources, and the surface of the photoconductor as an image carrier provided corresponding to each laser light source is deflected and scanned to form an electrostatic latent image on the surface of the photoconductor. There is known an optical scanning device or an image forming apparatus including the same.

このような光学走査装置には、光源、レンズ、ミラー等から構成される光学部品と、それら光学部品を内部に有する光学箱と、光学箱をカバーするカバー部材と、が備えられることが一般的である。   Such an optical scanning device is generally provided with an optical component composed of a light source, a lens, a mirror, and the like, an optical box having these optical components inside, and a cover member that covers the optical box. It is.

特許文献１は、従来例に係る光学走査装置の構成を開示するものである。特許文献１に開示される光学走査装置は、光学部品を内部に有する光学箱に対してそのカバー部材がスライドして光学箱を覆い、スナップフィットでカバー部を固定するものである。さらにカバー部材が光学箱に対してスライドする方向は、カバー部材のスライド動作によって光学部品の走査精度に影響が生じない方向に設定されている。   Patent Document 1 discloses a configuration of an optical scanning device according to a conventional example. In the optical scanning device disclosed in Patent Document 1, a cover member slides on an optical box having an optical component inside to cover the optical box, and the cover portion is fixed by snap fitting. Furthermore, the direction in which the cover member slides with respect to the optical box is set to a direction in which the scanning accuracy of the optical component is not affected by the sliding operation of the cover member.

また、特許文献２及び３に開示される光学走査装置は、光学箱とカバー部材の間の隙間に弾性部材を設けることで光学箱とカバー部材の隙間を封止して、光学箱の内部に粉塵が侵入することを防ぐ構成である。
特開２００４−５４０１９号公報 特開平１０−１２３４４４号公報 特開２００２−２７７７９５号公報 Further, the optical scanning devices disclosed in Patent Documents 2 and 3 seal the gap between the optical box and the cover member by providing an elastic member in the gap between the optical box and the cover member. This configuration prevents dust from entering.
JP 2004-54019 A JP-A-10-123444 JP 2002-277795 A

しかしながら上記従来例に係る光学走査装置においては以下に示す問題を生じる。   However, the optical scanning device according to the conventional example has the following problems.

特許文献１に開示される光学走査装置は、カバー部材を光学箱に対してスライドさせる構成であるので、光学箱とカバー部材の間に隙間が生じてしまう。また、カバー部材がスライドする構成であるため、光学箱とカバー部材の間の隙間を封止するための弾性部材を設けることが困難である。その結果、光学箱の内部に粉塵が侵入し、光学部品を汚染する恐れがある。   Since the optical scanning device disclosed in Patent Document 1 is configured to slide the cover member relative to the optical box, a gap is generated between the optical box and the cover member. In addition, since the cover member is configured to slide, it is difficult to provide an elastic member for sealing the gap between the optical box and the cover member. As a result, dust may enter the optical box and contaminate the optical components.

また、特許文献２、３に開示される光学走査装置は、光学箱とカバー部材の間に弾性部材を設け、光学箱の内部に粉塵が侵入することを防ぐ構成である。しかし、弾性部材からの反力により光学箱が変形してしまい、それに伴い光学部品の配置にズレが生じ、光学部品の感光体への照射位置ずれて、色ずれなどの画像不良が生じてしまう。   In addition, the optical scanning devices disclosed in Patent Documents 2 and 3 have a configuration in which an elastic member is provided between the optical box and the cover member to prevent dust from entering the inside of the optical box. However, the optical box is deformed by the reaction force from the elastic member, and accordingly, the arrangement of the optical components is shifted, the irradiation position of the optical components to the photosensitive member is shifted, and the image defect such as color shift occurs. .

すなわち、従来例に係る光学走査装置においては、光学箱とカバー部材の間の隙間を弾性部材によって封止しつつ、弾性部材の反力によって光学箱が変形することで生じる色ずれ等の画像不良を防ぐ構成については開示されていない。   That is, in the optical scanning device according to the conventional example, the gap between the optical box and the cover member is sealed with the elastic member, and the image defect such as color shift caused by the deformation of the optical box due to the reaction force of the elastic member. A configuration for preventing the above is not disclosed.

以上より、本発明は、光学箱とカバー部材の間の隙間を弾性部材によって封止しつつ、弾性部材の反力によって光学箱が変形することで生じる色ずれ等の画像不良を防ぐ光学走
査装置、及びこれを備える画像形成装置を提供することを目的とする。 As described above, the present invention provides an optical scanning device that prevents image defects such as color misregistration caused by deformation of the optical box due to the reaction force of the elastic member while sealing the gap between the optical box and the cover member with the elastic member. And an image forming apparatus including the same.

上記目的を達成するために本発明にあっては、レーザ光を偏向して像担持体の表面で走査するためのレーザ偏向走査手段と、前記レーザ偏向走査手段によって偏向されるレーザ光を前記像担持体の表面に結像する結像部材と、底板と前記底板を囲む側壁とを有する箱状の筐体であって、前記レーザ偏向走査手段及び前記結像部材を収容する光学箱と、前記光学箱の側壁の外側面に沿う側壁を有し、前記光学箱に取り付けられて前記光学箱内を覆うカバー部材と、前記光学箱に取り付けられた前記カバー部材と前記光学箱の側壁との間に形成される隙間を経路とする粉塵の前記光学箱内への侵入を防ぐ為に前記経路に設けられる弾性部材と、を備える光学走査装置において、前記弾性部材は、前記カバー部材が前記光学箱に取り付けられた状態で、前記光学箱の側壁と前記カバー部材の側壁とに当接することで前記経路を塞ぎ、前記光学箱の側壁の外側面に垂直な方向から見ると、少なくとも一部が前記底板に重なって配置されていることを特徴とする。

In the present invention in order to achieve the above object, the laser deflection scanning means for scanning the surface of the image bearing member to laser light polarized direction, the laser beam deflected by the laser deflection scanning means an imaging member for imaging the surface of the image bearing member, a box-shaped housing having a enclose sidewall bottom plate and front Symbol bottom plate, an optical box which accommodates the laser deflection scanning means and said imaging member When the has side walls along the outer surface of the side wall of the optical box, the cover member is attached to the optical box cover in the optical box, the side wall of the optical box and the cover member attached to the optical box in the optical scanning apparatus and an elastic member provided in the path of the gap formed in order to prevent the intrusion into the optical box in the dust to route between, the elastic member, the cover member Attached to the optical box The closing of the path by abutting to the side wall of the side wall and the cover member of the optical box, when viewed from a direction perpendicular to the outer surface of the side wall of the optical box, the bottom plate portion even without least It is characterized by being arranged overlapping.

また、本発明の画像形成装置は、上記の光学走査装置と、前記像担持体と、を備え、前記光学走査装置から射出されるレーザ光によって前記像担持体を走査することで該像担持体上に潜像を形成し、画像形成を行うことを特徴とする。 The image forming apparatus of the present invention includes the above optical scanning device, and a said image bearing member, said image bearing member by scanning the image bearing member by a laser beam emitted from the optical scanning device A latent image is formed on the top and image formation is performed .

以上説明したように、本発明は、光学箱とカバー部材の間の隙間を弾性部材によって封止しつつ、弾性部材の反力によって光学箱が変形することで生じる色ずれ等の画像不良を防ぐ光学走査装置、及びこれを備える画像形成装置を提供することが可能になる。   As described above, the present invention prevents image defects such as color misregistration caused by deformation of the optical box due to the reaction force of the elastic member while sealing the gap between the optical box and the cover member with the elastic member. An optical scanning device and an image forming apparatus including the same can be provided.

以下に図面を参照して、この発明を実施するための最良の形態を、実施の形態に基づいて例示的に詳しく説明する。ただし、この実施の形態に記載されている構成部品の寸法、材質、形状、その相対配置などは、特に特定的な記載がない限りは、この発明の範囲をそれらのみに限定する趣旨のものではない。   The best mode for carrying out the present invention will be exemplarily described in detail below based on the embodiments with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention only to those unless otherwise specified. Absent.

（第１の実施の形態）
図１〜図８を参照して、本発明の第１の実施の形態に係る光学走査装置について説明する。 (First embodiment)
An optical scanning device according to a first embodiment of the present invention will be described with reference to FIGS.

［画像形成装置の構成］
図２に本実施の形態に係る画像形成装置１５の概略構成を示す。図２に示すように、本実施の形態に係る画像形成装置１５は、第１の光学走査装置１６ａと、第２の光学走査装置１６ｂと、を備える。なお、これらの光学走査装置の構成については後述する。 [Configuration of Image Forming Apparatus]
FIG. 2 shows a schematic configuration of the image forming apparatus 15 according to the present embodiment. As shown in FIG. 2, the image forming apparatus 15 according to the present embodiment includes a first optical scanning device 16a and a second optical scanning device 16b. The configuration of these optical scanning devices will be described later.

第１の光学走査装置１６ａ、第２の光学走査装置１６ｂは、入力された画像情報を基に変調されたレーザ光を射出し、それぞれのレーザ光に対応して設けられる像担持体としての感光体１（１Ｃ、１Ｙ、１Ｍ、１Ｋ）の表面上に静電潜像を形成する。なお、第１の光学走査装置１６ａからは第１のレーザ光３Ｙ、第２のレーザ光３Ｃが射出され、第２の光学走査装置１６ｂからは第１のレーザ光３Ｋ、第２のレーザ光３Ｍが射出される。   The first optical scanning device 16a and the second optical scanning device 16b emit laser beams modulated based on the input image information, and are photosensitive as image carriers provided corresponding to the respective laser beams. An electrostatic latent image is formed on the surface of the body 1 (1C, 1Y, 1M, 1K). The first laser beam 3Y and the second laser beam 3C are emitted from the first optical scanning device 16a, and the first laser beam 3K and the second laser beam 3M are emitted from the second optical scanning device 16b. Is ejected.

また、本実施の形態に係る画像形成装置１５は、シアン（Ｃ）、イエロー（Ｙ）、マゼンダ（Ｍ）、ブラック（Ｋ）の４色のトナー剤を用いて所望の色調を得る多重現像方式を採用するものである。すなわち、これら４色のトナー剤のそれぞれに対応して、画像形成プロセスに関わる各部材が設けられており、各部材には対応するトナー剤の符号（シアン（Ｃ）、イエロー（Ｙ）、マゼンダ（Ｍ）、ブラック（Ｋ））を付して以下説明を行うものとする。   In addition, the image forming apparatus 15 according to the present embodiment uses a multiple developing system that obtains a desired color tone using toner agents of four colors of cyan (C), yellow (Y), magenta (M), and black (K). Is adopted. That is, each member for the image forming process is provided corresponding to each of the four color toner agents, and each member is provided with a code (cyan (C), yellow (Y), magenta) of the corresponding toner agent. (M) and black (K)) will be used for the following description.

第１の光学走査装置１６ａ、第２の光学走査装置１６ｂから射出されたレーザ光３（３Ｃ、３Ｙ、３Ｍ、３Ｋ）は、それぞれのレーザ光に対応して設けられる像担持体としての感光体１（１Ｃ、１Ｙ、１Ｍ、１Ｋ）の表面を走査し、その表面に静電潜像を形成する。なお、それぞれの感光体１（１Ｃ、１Ｙ、１Ｍ、１Ｋ）は、対応するレーザ光３（３Ｃ、３Ｙ、３Ｍ、３Ｋ）に走査される前に、１次帯電器２（２Ｃ、２Ｙ、２Ｍ、２Ｋ）によって表面が一様に帯電されている。   Laser light 3 (3C, 3Y, 3M, 3K) emitted from the first optical scanning device 16a and the second optical scanning device 16b is a photoconductor as an image carrier provided corresponding to each laser light. 1 (1C, 1Y, 1M, 1K) is scanned, and an electrostatic latent image is formed on the surface. Each of the photoreceptors 1 (1C, 1Y, 1M, 1K) is scanned by the corresponding laser beam 3 (3C, 3Y, 3M, 3K) before the primary charger 2 (2C, 2Y, 2M). 2K), the surface is uniformly charged.

感光体１（１Ｃ、１Ｙ、１Ｍ、１Ｋ）の表面に静電潜像が形成されると、それぞれの静電潜像に対し、現像器４（４Ｃ、４Ｙ、４Ｍ、４Ｋ）からトナー剤（シアン（Ｃ）、イエロー（Ｙ）、マゼンダ（Ｍ）、ブラック（Ｋ））が供給される。そして感光体１（１Ｃ、１Ｙ、１Ｍ、１Ｋ）の表面には、それぞれシアン（Ｃ）、イエロー（Ｙ）、マゼンダ（Ｍ）、ブラック（Ｋ）、のトナー像が現像される。   When an electrostatic latent image is formed on the surface of the photoreceptor 1 (1C, 1Y, 1M, 1K), a toner agent (4C, 4Y, 4M, 4K) is supplied from the developing device 4 (4C, 4Y, 4M, 4K) to each electrostatic latent image. Cyan (C), yellow (Y), magenta (M), and black (K)) are supplied. Then, cyan (C), yellow (Y), magenta (M), and black (K) toner images are developed on the surface of the photoreceptor 1 (1C, 1Y, 1M, 1K), respectively.

一方で画像形成装置１５の下方には、複数のシート材が積載される給送トレイ９が備えられる。そして給送トレイ９に積載されるシート材８に給送ローラ１０が当接し、給送ローラ１０の駆動に伴いシート材８が１枚ずつ給送される。   On the other hand, a feed tray 9 on which a plurality of sheet materials are stacked is provided below the image forming apparatus 15. Then, the feeding roller 10 contacts the sheet material 8 loaded on the feeding tray 9, and the sheet material 8 is fed one by one as the feeding roller 10 is driven.

給送されたシート材８は、レジストローラ１１を通過する際に、画像の書き出しタイミングと同期をとって転写ベルト７上に順次搬送される。そして転写ベルト７に搬送されたシート材８は、感光体１（１Ｃ、１Ｙ、１Ｍ、１Ｋ）と転写ローラ５（５Ｃ、５Ｙ、５Ｍ、５Ｋ）のニップへ搬送される。   The fed sheet material 8 is sequentially conveyed onto the transfer belt 7 in synchronization with the image writing timing when passing the registration roller 11. The sheet material 8 conveyed to the transfer belt 7 is conveyed to the nip between the photoreceptor 1 (1C, 1Y, 1M, 1K) and the transfer roller 5 (5C, 5Y, 5M, 5K).

感光体１（１Ｃ、１Ｙ、１Ｍ、１Ｋ）と転写ローラ５（５Ｃ、５Ｙ、５Ｍ、５Ｋ）のニップにおいて、シート材８にシアン（Ｃ）、イエロー（Ｙ）、マゼンダ（Ｍ）、ブラック（Ｋ）のトナー像が順次転写され、シート材８上に所望のカラー画像が形成される。なお、転写ベルト７を駆動する駆動ローラ１２は、転写ベルト７の送り動作を精度良く行うことが可能であり、回転ムラの小さな駆動モータ（不図示）に接続される。   At the nip between the photoreceptor 1 (1C, 1Y, 1M, 1K) and the transfer roller 5 (5C, 5Y, 5M, 5K), cyan (C), yellow (Y), magenta (M), black ( The toner images K) are sequentially transferred to form a desired color image on the sheet material 8. The drive roller 12 for driving the transfer belt 7 can accurately perform the transfer operation of the transfer belt 7 and is connected to a drive motor (not shown) with small rotation unevenness.

所望のカラー画像が転写されたシート材８は、定着器１３に搬送される。そして定着器１３においてカラー画像がシート材８上に熱定着され、排出ローラ１４によって画像形成装置外へシート材８が排出される。   The sheet material 8 on which the desired color image is transferred is conveyed to the fixing device 13. Then, the color image is thermally fixed on the sheet material 8 in the fixing device 13, and the sheet material 8 is discharged out of the image forming apparatus by the discharge roller 14.

［光学走査装置の構成］
図１を参照して、本実施の形態に係る光学走査装置の構成を説明する。図１は、本実施の形態に係る光学走査装置として、第２の光学走査装置１６ｂの概略構成を示すものである。なお、本実施の形態において、第２の光学走査装置１６ｂと第１の光学走査装置１６ａの構成、動作は同一であるので、ここでは第２の光学走査装置１６ｂについてのみ説明を行うものとする。 [Configuration of optical scanning device]
The configuration of the optical scanning device according to the present embodiment will be described with reference to FIG. FIG. 1 shows a schematic configuration of a second optical scanning device 16b as an optical scanning device according to the present embodiment. In the present embodiment, the configuration and operation of the second optical scanning device 16b and the first optical scanning device 16a are the same, so only the second optical scanning device 16b will be described here. .

本実施の形態に係る光学走査装置（第２の光学走査装置１６ｂ）は、レーザ光源として設けられる半導体レーザ３０Ｋ、３０Ｍと、コリメータレンズ３１Ｋ、３１Ｍと、シリンドリカルレンズ３２と、偏向ユニットとしての回転多面鏡２１と、を備える。さらに、第１ｆΘレンズ２０と、反射ミラー２５，２６，２７と、第２ｆΘレンズ２４（２４Ｋ、２４Ｍ）と、受光素子３４と、を備える。なお、第１ｆΘレンズ２０、第２ｆΘレンズ２４は、レーザ光を像担持体の表面に結像するための結像ユニットを構成するものである。   The optical scanning device (second optical scanning device 16b) according to the present embodiment includes semiconductor lasers 30K and 30M provided as laser light sources, collimator lenses 31K and 31M, a cylindrical lens 32, and a rotating multi-face as a deflection unit. And a mirror 21. Furthermore, a first fΘ lens 20, reflection mirrors 25, 26, and 27, a second fΘ lens 24 (24K, 24M), and a light receiving element 34 are provided. The first fΘ lens 20 and the second fΘ lens 24 constitute an imaging unit for imaging the laser beam on the surface of the image carrier.

そして、これらの光学部品が光学箱２９に収容され、カバー部材１９によって光学箱２９の開口部が覆われる。   These optical components are accommodated in the optical box 29, and the opening of the optical box 29 is covered by the cover member 19.

上記構成で半導体レーザ３０Ｋ、３０Ｍから射出したレーザ光３（第１のレーザ光３Ｋ
、第２のレーザ光３Ｍ）は、まずコリメータレンズ３１Ｋ、３１Ｍ、シリンドリカルレンズ３２を透過する。 Laser light 3 (first laser light 3K) emitted from the semiconductor lasers 30K and 30M with the above configuration.
The second laser light 3M) first passes through the collimator lenses 31K and 31M and the cylindrical lens 32.

そして、レーザ光３の偏向ユニットとして設けられる回転多面鏡２１の同一反射面２２にレーザ光３（第１のレーザ光３Ｋ、第２のレーザ光３Ｍ）が集光される。回転多面鏡２１はスキャナモータ２３によって回転駆動され、反射面２２に入射したレーザ光３（第１のレーザ光３Ｋ、第２のレーザ光３Ｍ）を偏向する。   Then, the laser beam 3 (first laser beam 3K, second laser beam 3M) is focused on the same reflecting surface 22 of the rotary polygon mirror 21 provided as a deflection unit for the laser beam 3. The rotary polygon mirror 21 is rotationally driven by a scanner motor 23 and deflects the laser beam 3 (first laser beam 3K, second laser beam 3M) incident on the reflecting surface 22.

偏向された第１のレーザ光３Ｋは第１ｆΘレンズ２０を透過し、反射ミラー２５で反射された後、第２のｆΘレンズ２４Ｋを透過し、反射ミラー２６によって感光体１Ｋの表面に照射される。そして回転多面鏡２１が回転駆動することで、感光体１Ｋの表面が走査される。   The deflected first laser light 3K passes through the first fΘ lens 20, is reflected by the reflection mirror 25, passes through the second fΘ lens 24K, and is irradiated onto the surface of the photoreceptor 1K by the reflection mirror 26. . Then, the surface of the photoreceptor 1K is scanned by rotating the rotary polygon mirror 21.

また、受光素子３４は、２つのレーザ光３（第１のレーザ光３Ｋ、第２のレーザ光３Ｍ）の一方のレーザ光を受光可能な位置に配置される。そして、受光素子３４において得られる同期信号が不図示のレーザ駆動基板に伝達されることによって、半導体レーザ３０Ｋ、３０Ｍの変調のタイミングが決定され、感光体１（１Ｋ、１Ｍ）の所望の位置に静電潜像が形成される。   The light receiving element 34 is disposed at a position where one of the two laser beams 3 (the first laser beam 3K and the second laser beam 3M) can be received. Then, the synchronization signal obtained in the light receiving element 34 is transmitted to a laser drive substrate (not shown), whereby the modulation timing of the semiconductor lasers 30K and 30M is determined, and the desired position of the photosensitive member 1 (1K, 1M) is determined. An electrostatic latent image is formed.

［光学箱に対するカバー部材の取り付け］
図３，４を参照して、本実施の形態においてカバー部材１９を光学箱２９に取り付ける際のカバー部材１９の取り付け状態について説明する。図３、図４は、図１に示す光学走査装置のＡ−Ａ断面の一部を示すものであり、図３は光学箱２９にカバー部材１９を取り付ける前の状態であり、図４は光学箱２９にカバー部材１９を取り付けた状態を示すものである。また、図３、図４中における４３は、第２ｆΘレンズ２４Ｍを支持する受け面を示すものである。 [Attaching the cover member to the optical box]
With reference to FIGS. 3 and 4, the attachment state of the cover member 19 when the cover member 19 is attached to the optical box 29 in the present embodiment will be described. 3 and 4 show a part of the AA cross section of the optical scanning device shown in FIG. 1, FIG. 3 shows a state before the cover member 19 is attached to the optical box 29, and FIG. The state which attached the cover member 19 to the box 29 is shown. Further, reference numeral 43 in FIGS. 3 and 4 denotes a receiving surface for supporting the second fΘ lens 24M.

光学箱２９には、側壁４１が形成され、ポリウレタンフォームやエラストマーなどの弾性部材５４が、側壁４１の外側面であって、弾性部材５４の下端部が光学箱２９の底板４２の上面よりも下方にくるように配置される。なお、弾性部材５４を側壁４１の外側面上に取り付ける際は、接着等の手段によって取り付けられる。   A side wall 41 is formed in the optical box 29, and an elastic member 54 such as polyurethane foam or elastomer is an outer surface of the side wall 41, and a lower end portion of the elastic member 54 is below the upper surface of the bottom plate 42 of the optical box 29. It is arranged to come to. In addition, when attaching the elastic member 54 on the outer surface of the side wall 41, it attaches by means, such as adhesion | attachment.

また、カバー部材１９には光学箱２９の側壁面に沿って側壁４９が形成され、側壁４９は、カバー部材１９を光学箱２９に覆い被せた状態で側壁４９の先端が光学箱２９の底板４２の位置まで到達可能な長さに設計される。また、カバー部材１９を光学箱２９に覆い被せた状態では、カバー部材１９の側壁４９と光学箱２９の側壁４１との間に隙間が形成される。   A side wall 49 is formed on the cover member 19 along the side wall surface of the optical box 29, and the side wall 49 is such that the front end of the side wall 49 is covered with the optical box 29 and the bottom plate 42 of the optical box 29. Designed to reach a position of In the state where the cover member 19 is covered with the optical box 29, a gap is formed between the side wall 49 of the cover member 19 and the side wall 41 of the optical box 29.

また、弾性部材５４における光学箱２９の側壁４１の法線方向の厚さは、カバー部材１９の側壁４９と光学箱２９の側壁４１が形成する隙間の幅よりも大きくなるように構成される。   Further, the thickness of the elastic member 54 in the normal direction of the side wall 41 of the optical box 29 is configured to be larger than the width of the gap formed by the side wall 49 of the cover member 19 and the side wall 41 of the optical box 29.

カバー部材１９を光学箱２９に対して取り付ける際は、まずカバー部材１９を光学箱２９の開口部側から光学箱２９の底板４２側に向かって覆い被せる。そして図３中Ｚ方向（光学箱２９の開口部から底板４２に向かう方向）にカバー部材１９を被せていき、図４の状態とする。   When attaching the cover member 19 to the optical box 29, first, the cover member 19 is covered from the opening side of the optical box 29 toward the bottom plate 42 side of the optical box 29. Then, the cover member 19 is covered in the Z direction (the direction from the opening of the optical box 29 toward the bottom plate 42) in FIG. 3 to obtain the state of FIG.

図４に示す取り付け完了の状態においては、弾性部材５４は、光学箱２９の側壁４１とカバー部材１９の側壁４９によって押し縮められ、弾性変形した状態で側壁４１と側壁４９の隙間に保持される。そして不図示のビス等により、カバー部材１９が光学箱２９に固
定される。すなわち弾性部材５４は、光学箱２９の側壁４１の外側面とカバー部材１９の側壁の内側面に確実に密着した状態で保持される。 4, the elastic member 54 is compressed by the side wall 41 of the optical box 29 and the side wall 49 of the cover member 19, and is held in the gap between the side wall 41 and the side wall 49 in an elastically deformed state. . The cover member 19 is fixed to the optical box 29 by screws (not shown). That is, the elastic member 54 is held in a state of being in close contact with the outer side surface of the side wall 41 of the optical box 29 and the inner side surface of the side wall of the cover member 19.

この構成によれば、光学箱２９の側壁４１とカバー部材１９の側壁４９との間に形成される隙間を弾性部材５４によって封止することが可能になるので、隙間から光学箱２９の内部に粉塵が侵入することを防ぐことが可能になる。   According to this configuration, since the gap formed between the side wall 41 of the optical box 29 and the side wall 49 of the cover member 19 can be sealed by the elastic member 54, the gap can be introduced into the optical box 29 from the gap. It is possible to prevent dust from entering.

さらに本実施の形態においては、光学箱２９の側壁４１の外側面上であって、弾性部材５４の下端部が光学箱２９の底板４２の上面よりも下方にくるように弾性部材５４を取り付ける構成とした。この構成によると、弾性部材５４によって光学箱２９の内部に粉塵が侵入することを防ぎつつ、弾性部材５４の反力が光学箱２９に及ぼす影響を低減させることが可能になる。   Further, in the present embodiment, the elastic member 54 is attached on the outer surface of the side wall 41 of the optical box 29 so that the lower end portion of the elastic member 54 is below the upper surface of the bottom plate 42 of the optical box 29. It was. According to this configuration, it is possible to reduce the influence of the reaction force of the elastic member 54 on the optical box 29 while preventing dust from entering the inside of the optical box 29 by the elastic member 54.

すなわち弾性部材５４は、光学箱２９の側壁４１とカバー部材１９の側壁４９に押し縮められた状態で側壁４１と側壁４９の間の隙間に保持される。よって、側壁４１に対しては弾性部材５４からの反力が働き、その結果、弾性部材５４が及ぼす反力によって光学箱２９が変形することが考えられる。   That is, the elastic member 54 is held in the gap between the side wall 41 and the side wall 49 in a state of being compressed by the side wall 41 of the optical box 29 and the side wall 49 of the cover member 19. Therefore, it is conceivable that a reaction force from the elastic member 54 acts on the side wall 41, and as a result, the optical box 29 is deformed by the reaction force exerted by the elastic member 54.

図５，６は、弾性部材５４が及ぼす反力によって光学箱２９が変形する様子を示すものである。   5 and 6 show how the optical box 29 is deformed by the reaction force exerted by the elastic member 54. FIG.

図５は、光学箱２９の側壁４１の上端部に弾性部材５４を設ける場合のカバー部材１９の取り付け状態を示すものである。図５に示すように、光学箱２９の側壁４１が弾性部材５４から図５中Ａ方向に反力を受ける。その結果、光学箱２９の底板４２が撓み、底板４２に取り付けられる第２ｆΘレンズ２４Ｍの受け面４３が変形する。   FIG. 5 shows an attached state of the cover member 19 when the elastic member 54 is provided at the upper end portion of the side wall 41 of the optical box 29. As shown in FIG. 5, the side wall 41 of the optical box 29 receives a reaction force from the elastic member 54 in the direction A in FIG. As a result, the bottom plate 42 of the optical box 29 is bent, and the receiving surface 43 of the second fΘ lens 24M attached to the bottom plate 42 is deformed.

また、図６は、光学箱２９の側壁４１の上端部の外側面に弾性部材５４を設ける場合のカバー部材１９の取り付け状態を示すものである。この場合は、光学箱２９の側壁４１が弾性部材５４から図６中Ｂ方向に反力を受ける。その結果、光学箱２９の底板４２が撓み、底板４２に取り付けられる第２ｆΘレンズ２４Ｍの受け面４３が変形する。   FIG. 6 shows an attached state of the cover member 19 when the elastic member 54 is provided on the outer surface of the upper end portion of the side wall 41 of the optical box 29. In this case, the side wall 41 of the optical box 29 receives a reaction force from the elastic member 54 in the direction B in FIG. As a result, the bottom plate 42 of the optical box 29 is bent, and the receiving surface 43 of the second fΘ lens 24M attached to the bottom plate 42 is deformed.

図５、図６に示すように、光学箱２９の変形に伴い、光学部品として設けられる第２ｆΘレンズ２４Ｍの受け面４３が変形すると、レーザ光３の感光体１上への照射位置がずれ、最終的に色ずれ等の画像不良が生じてしまう。また、ここでは第２ｆΘレンズ２４Ｍの受け面４３が変形した場合を示したが、光学箱２９が変形すると、第２ｆΘレンズ２４Ｍ以外の光学部品も変形する可能性もあり、その結果、色ずれ等の画像不良が生じてしまう。   As shown in FIGS. 5 and 6, when the receiving surface 43 of the second fΘ lens 24 </ b> M provided as an optical component is deformed along with the deformation of the optical box 29, the irradiation position of the laser beam 3 on the photosensitive member 1 is shifted, Eventually, image defects such as color misregistration occur. Although the case where the receiving surface 43 of the second fΘ lens 24M is deformed is shown here, when the optical box 29 is deformed, optical components other than the second fΘ lens 24M may be deformed, resulting in color misregistration and the like. Image defects will occur.

これに対して本実施の形態においては、光学箱２９の側壁４１の外側面であって、弾性部材５４の下端部が光学箱２９の底板４２の上面よりも下方にくるように弾性部材５４を取り付ける構成とした（図４参照）。この構成では、光学箱２９の側壁４１の根元近傍で弾性部材５４の反力を受ける構成であるので、光学箱２９が変形しにくい。   On the other hand, in the present embodiment, the elastic member 54 is disposed on the outer surface of the side wall 41 of the optical box 29 so that the lower end portion of the elastic member 54 is below the upper surface of the bottom plate 42 of the optical box 29. It was set as the structure which attaches (refer FIG. 4). In this configuration, since the reaction force of the elastic member 54 is received near the base of the side wall 41 of the optical box 29, the optical box 29 is not easily deformed.

よって、光学箱２９に取り付けられる複数の光学部品、またはそれらを支持する受け面等の変形量を少量に抑制することが可能になるので、色ずれ等の画像不良が生じる可能性が低くなる。   Therefore, the amount of deformation of the plurality of optical components attached to the optical box 29 or the receiving surface that supports them can be suppressed to a small amount, so that the possibility of image defects such as color misregistration is reduced.

［弾性部材の配置ごとの光学部品の受け面の変形量］
図８は、本実施の形態において、弾性部材５４の配置を変えた場合の、それぞれの配置において計測された光学部品の変形量を表す実験結果である。 [Deformation amount of receiving surface of optical component for each arrangement of elastic member]
FIG. 8 is an experimental result showing the deformation amount of the optical component measured in each arrangement when the arrangement of the elastic member 54 is changed in the present embodiment.

ここでは、弾性部材５４を図７（１）〜図７（４）に示す計４種類のパターンに配置し、それぞれの配置パターンにおける各光学部品の受け面（計６箇所）の変位量の測定結果を示す。なお、弾性部材５４の配置パターンはグラフの色によって区別した。すなわち、図７（１）に示す配置パターンを黒色、図７（２）に示す配置パターンを細斜線、図７（３）に示す配置パターンを太斜線、図７（４）に示す配置パターンを白色、で示すものとした。また、変形量を計測した光学部品の受け面を、その位置ごとにグラフの横軸に配列した。さらにグラフの縦軸は、各々の受け面の変形量（ｍ）を表すものとした。   Here, the elastic members 54 are arranged in a total of four types of patterns shown in FIGS. 7A to 7D, and the amount of displacement of the receiving surfaces (total of six locations) of each optical component in each arrangement pattern is measured. Results are shown. In addition, the arrangement pattern of the elastic member 54 was distinguished by the color of the graph. That is, the arrangement pattern shown in FIG. 7 (1) is black, the arrangement pattern shown in FIG. 7 (2) is a thin oblique line, the arrangement pattern shown in FIG. 7 (3) is a thick oblique line, and the arrangement pattern shown in FIG. It was shown as white. In addition, the receiving surfaces of the optical components whose deformation amount was measured were arranged on the horizontal axis of the graph for each position. Further, the vertical axis of the graph represents the deformation amount (m) of each receiving surface.

図８に示すように、弾性部材５４を光学箱２９の側壁４１の上面に取り付ける場合（図７（１））と比較して、弾性部材５４を光学箱２９の側壁４１の外側面に取り付けた場合の方が各光学部品の受け面の変形量が少なくなることがわかる。   As shown in FIG. 8, the elastic member 54 is attached to the outer surface of the side wall 41 of the optical box 29 as compared with the case where the elastic member 54 is attached to the upper surface of the side wall 41 of the optical box 29 (FIG. 7 (1)). It can be seen that the amount of deformation of the receiving surface of each optical component is smaller in the case.

また、弾性部材５４を光学箱２９の側壁４１の外側面に取り付ける場合は、外側面の上方に取り付ける場合よりも下方に取り付ける場合の方が各受け面の変形量（ｍ）が小さくなることがわかる（図７（２）〜（４）を比較）。   Further, when the elastic member 54 is attached to the outer surface of the side wall 41 of the optical box 29, the amount of deformation (m) of each receiving surface is smaller when the elastic member 54 is attached below than when it is attached above the outer surface. It can be seen (compare FIGS. 7 (2) to (4)).

これらの実験結果からも、本実施の形態のように光学箱２９の側壁４１の外側面上であって、さらに側壁４１の根元近傍に弾性部材５４を取り付けることで光学部品の変形量を小さくすることが可能になることがわかる。   Also from these experimental results, the deformation amount of the optical component is reduced by attaching the elastic member 54 on the outer surface of the side wall 41 of the optical box 29 and in the vicinity of the base of the side wall 41 as in the present embodiment. You can see that it is possible.

以上より、本実施の形態によれば、カバー部材１９を光学箱２９に取り付けた際に生じる弾性部材５４の反力を光学箱２９の側壁４１の根元近傍で受けることで、光学箱２９が有する光学部品、及びそれらの受け面の変形量を小さく抑制することができる。   As described above, according to the present embodiment, the optical box 29 has the reaction force of the elastic member 54 generated when the cover member 19 is attached to the optical box 29 in the vicinity of the root of the side wall 41 of the optical box 29. The amount of deformation of the optical components and their receiving surfaces can be reduced.

よって、感光体１表面に対するレーザ光３の照射ズレ等に起因する画像不良が生じる可能性が低くなる。特に複数の光学走査装置を用いるタンデム式のカラー画像形成装置においては、感光体１表面に対する照射ズレを少量に抑制することが重要になる。   Therefore, the possibility of image defects due to the irradiation deviation of the laser beam 3 on the surface of the photosensitive member 1 is reduced. In particular, in a tandem type color image forming apparatus using a plurality of optical scanning devices, it is important to suppress an irradiation shift to the surface of the photoreceptor 1 to a small amount.

また、本実施の形態によれば、弾性部材５４によって光学箱２９とカバー部材１９の間に形成される隙間を確実に封止することが可能になるので、粉塵が光学箱２９の内部に侵入することを防ぐことが可能になる。よって光学箱２９の内部に粉塵が侵入し、光学部品を汚染する可能性が低くなる。   Further, according to the present embodiment, the elastic member 54 can reliably seal the gap formed between the optical box 29 and the cover member 19, so that dust can enter the optical box 29. Can be prevented. Therefore, the possibility that dust enters the inside of the optical box 29 and contaminates the optical component is reduced.

また、本実施の形態によれば、光学箱２９の側壁４１の外側面に弾性部材５４を取り付け、カバー部材１９を光学箱２９の外側に覆い被せる構成である。この構成によると、例えば光学箱２９の側壁４１の内側面に弾性部材５４を取り付ける場合と比較して、比較的広いスペースで弾性部材５４を取り付けることができる。   Further, according to the present embodiment, the elastic member 54 is attached to the outer surface of the side wall 41 of the optical box 29 and the cover member 19 is covered on the outer side of the optical box 29. According to this configuration, for example, the elastic member 54 can be attached in a relatively wide space as compared with the case where the elastic member 54 is attached to the inner surface of the side wall 41 of the optical box 29.

よって、弾性部材５４を取り付ける際の作業を簡易化することができるので、取り付け時間の短縮、製造コストの低減、高品質化を達成することが可能になる。   Therefore, since the operation | work at the time of attaching the elastic member 54 can be simplified, it becomes possible to achieve shortening of attachment time, reduction of manufacturing cost, and quality improvement.

（第２の実施の形態）
図９、図１０を参照して、本発明の第２の実施の形態について説明する。図９は、第２の実施の形態におけるカバー部材１９の光学箱２９への取り付け状態を示す図である。 (Second Embodiment)
The second embodiment of the present invention will be described with reference to FIGS. FIG. 9 is a diagram illustrating a state in which the cover member 19 is attached to the optical box 29 according to the second embodiment.

本実施の形態においても、第１の実施の形態と同様、光学箱２９の側壁４１の外側面上であって、さらに弾性部材５４の下端部が光学箱２９の底板４２の上面よりも下方にくるように弾性部材５４を設ける構成とした。すなわち、弾性部材５４の配置については第１の実施の形態と異なるものではない。また、画像形成装置の構成、光学走査装置の構成、
光学箱に対するカバー部材の取り付け、については第１の実施の形態と異なるものではないので説明を省略し、ここでは、本実施の形態の特徴である弾性部材５４の構成についてのみ説明を行う。 Also in the present embodiment, as in the first embodiment, the lower end portion of the elastic member 54 is further below the upper surface of the bottom plate 42 of the optical box 29 on the outer surface of the side wall 41 of the optical box 29. The elastic member 54 is provided so as to be formed. That is, the arrangement of the elastic member 54 is not different from that of the first embodiment. Also, the configuration of the image forming apparatus, the configuration of the optical scanning device,
Since the attachment of the cover member to the optical box is not different from the first embodiment, the description thereof will be omitted, and only the configuration of the elastic member 54 which is a feature of the present embodiment will be described here.

図１０に示すように、カバー部材１９を光学箱２９に対して取り付ける際は、カバー部材１９の側壁４９の内側面と、弾性部材５４が摺擦する構成である。その結果、弾性部材５４が図１０に示すように変形してしまい、弾性部材５４が光学箱２９から剥離してしまう恐れがある。   As shown in FIG. 10, when the cover member 19 is attached to the optical box 29, the inner side surface of the side wall 49 of the cover member 19 and the elastic member 54 are rubbed. As a result, the elastic member 54 may be deformed as shown in FIG. 10 and the elastic member 54 may be peeled off from the optical box 29.

これに対し、本実施の形態では、弾性部材５４におけるカバー部材１９の側壁４９の内側面に密着する面に、弾性部材５４よりも摩擦抵抗の低いスキン部材５６を接着等によって設ける構成とした。この構成によると、カバー部材１９の側壁４９の内側面とスキン部材５６との間で生じる摩擦は、弾性部材５４とカバー部材１９の側壁４９の内側面との間で生じる摩擦よりも小さくなるので、弾性部材５４の変形量を少なくすることができる。すなわち、弾性部材５４が光学箱２９から剥離してしまう可能性を低くすることが可能になる。   In contrast, in the present embodiment, a skin member 56 having a lower frictional resistance than the elastic member 54 is provided on the surface of the elastic member 54 that is in close contact with the inner surface of the side wall 49 of the cover member 19 by adhesion or the like. According to this configuration, the friction generated between the inner surface of the side wall 49 of the cover member 19 and the skin member 56 is smaller than the friction generated between the elastic member 54 and the inner surface of the side wall 49 of the cover member 19. The deformation amount of the elastic member 54 can be reduced. That is, it is possible to reduce the possibility that the elastic member 54 is peeled off from the optical box 29.

また、本実施の形態においては、弾性部材５４におけるカバー部材１９の側壁４９の内側面に密着する面に、弾性部材５４よりも摩擦抵抗の低いスキン部材５６を接着等によって設ける構成とした。しかしながら、スキン部材５６以外の材質であって、弾性部材５４よりも摩擦抵抗の低い部材を用いる構成であっても良い。   In the present embodiment, the skin member 56 having a lower frictional resistance than the elastic member 54 is provided on the surface of the elastic member 54 that is in close contact with the inner surface of the side wall 49 of the cover member 19 by adhesion or the like. However, a structure using a material other than the skin member 56 and having a lower frictional resistance than the elastic member 54 may be used.

以上より、本実施の形態によれば、光学箱２９とカバー部材１９の間の隙間を弾性部材５４によって封止しつつ、弾性部材５４の反力によって光学箱２９が変形することで生じる色ずれ等の画像不良を防ぐことが可能になる。   As described above, according to the present embodiment, the gap between the optical box 29 and the cover member 19 is sealed by the elastic member 54, and the color shift caused by the deformation of the optical box 29 due to the reaction force of the elastic member 54. It is possible to prevent image defects such as.

第１の実施の形態に係る光学走査装置の概略構成図1 is a schematic configuration diagram of an optical scanning device according to a first embodiment. 第１の実施の形態に係る画像形成装置の概略構成図1 is a schematic configuration diagram of an image forming apparatus according to a first embodiment. 図１におけるＡ−Ａ断面（カバー部材を取り付ける前の状態）AA cross section in FIG. 1 (state before attaching a cover member) 図１におけるＡ−Ａ断面（カバー部材を取り付けた状態）AA cross section in FIG. 1 (with cover member attached) 弾性部材の反力によって生じる光学箱の変形を示す図The figure which shows the deformation | transformation of the optical box produced by the reaction force of an elastic member 弾性部材の反力によって生じる光学箱の変形を示す図The figure which shows the deformation | transformation of the optical box produced by the reaction force of an elastic member 弾性部材の配置パターンElastic member placement pattern 弾性部材の配置ごとの光学部品の受け面の変形量を示す図The figure which shows the deformation amount of the receiving surface of an optical component for every arrangement | positioning of an elastic member 第２の実施の形態におけるカバー部材の取り付け状態を示す図The figure which shows the attachment state of the cover member in 2nd Embodiment. カバー部材の取り付け状態を示す図The figure which shows the attachment state of a cover member

符号の説明Explanation of symbols

１ 感光体
３Ｋ 第１のレーザ光
３Ｍ 第２のレーザ光
１５ 画像形成装置
１６ａ 第１の光学走査装置
１６ｂ 第２の光学走査装置
１９ カバー部材
２９ 光学箱
４１ （光学箱の）側壁
４２ （光学箱の）底板
４９ （カバー部材の）側壁
５４ 弾性部材
５６ スキン層 DESCRIPTION OF SYMBOLS 1 Photoconductor 3K 1st laser beam 3M 2nd laser beam 15 Image forming apparatus 16a 1st optical scanning device 16b 2nd optical scanning device 19 Cover member 29 Optical box 41 Side wall 42 (optical box) (Optical box) )) Bottom plate 49 (of cover member) Side wall 54 Elastic member 56 Skin layer

Claims (3)

レーザ光を偏向して像担持体の表面で走査するためのレーザ偏向走査手段と、
前記レーザ偏向走査手段によって偏向されるレーザ光を前記像担持体の表面に結像する結像部材と、
底板と前記底板を囲む側壁とを有する箱状の筐体であって、前記レーザ偏向走査手段及び前記結像部材を収容する光学箱と、
前記光学箱の側壁の外側面に沿う側壁を有し、前記光学箱に取り付けられて前記光学箱内を覆うカバー部材と、
前記光学箱に取り付けられた前記カバー部材と前記光学箱の側壁との間に形成される隙間を経路とする粉塵の前記光学箱内への侵入を防ぐ為に前記経路に設けられる弾性部材と、
を備える光学走査装置において、
前記弾性部材は、前記カバー部材が前記光学箱に取り付けられた状態で、前記光学箱の側壁と前記カバー部材の側壁とに当接することで前記経路を塞ぎ、前記光学箱の側壁の外側面に垂直な方向から見ると、少なくとも一部が前記底板に重なって配置されていることを特徴とする光学走査装置。 A laser deflection scanning means for scanning the surface of the image bearing member to laser light polarized direction,
An imaging member that forms an image of the laser beam deflected by the laser deflection scanning unit on the surface of the image carrier;
The bottom plate and the front Symbol bottom plate a box-shaped housing having a enclose sidewall, an optical box which accommodates the laser deflection scanning means and the imaging member,
A cover member that has a side wall along an outer surface of the side wall of the optical box, and is attached to the optical box and covers the inside of the optical box ;
An elastic member provided in the path in order to prevent dust from entering the optical box through a gap formed between the cover member attached to the optical box and a side wall of the optical box;
In an optical scanning device comprising:
The elastic member in a state where the cover member is attached to the optical box, the closing of the path by abutting to the side wall of the cover member and the side wall of the optical box, the outer side wall of the optical box Viewed from a direction perpendicular to the side surface, an optical scanning apparatus characterized by being arranged partially overlaps with the bottom plate even without low. 前記カバー部材を前記光学箱に取り付ける際、前記弾性部材と前記カバー部材の側壁とが摺擦する構成であり、
前記弾性部材は、前記カバー部材の側壁に当接する部分に前記弾性部材本体よりも摩擦抵抗の低い部分を有することを特徴とする請求項１に記載の光学走査装置。 When attaching the cover member to the optical box, the elastic member and the side wall of the cover member are configured to rub .
The elastic member, an optical scanning apparatus according to claim 1, characterized in Rukoto to have a part content lower frictional resistance than the prior SL elastic member body portion abutting the side wall of the cover member. 請求項１又は２に記載の光学走査装置と、
前記像担持体と、
を備え、
前記光学走査装置から射出されるレーザ光によって前記像担持体を走査することで該像担持体上に潜像を形成し、画像形成を行う画像形成装置。 An optical scanning device according to claim 1 or 2 ,
The image carrier;
With
Wherein a latent image is formed on the image bearing member by scanning the image bearing member by a laser beam emitted from the optical scanning device, an image forming apparatus for forming an image.
JP2007108295A 2007-04-17 2007-04-17 Optical scanning apparatus and image forming apparatus Active JP5063170B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007108295A JP5063170B2 (en) 2007-04-17 2007-04-17 Optical scanning apparatus and image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007108295A JP5063170B2 (en) 2007-04-17 2007-04-17 Optical scanning apparatus and image forming apparatus

Publications (3)

Publication Number Publication Date
JP2008268348A JP2008268348A (en) 2008-11-06
JP2008268348A5 JP2008268348A5 (en) 2010-06-17
JP5063170B2 true JP5063170B2 (en) 2012-10-31

Family

ID=40047974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007108295A Active JP5063170B2 (en) 2007-04-17 2007-04-17 Optical scanning apparatus and image forming apparatus

Country Status (1)

Country Link
JP (1) JP5063170B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5264555B2 (en) 2008-03-06 2013-08-14 キヤノン株式会社 Scanning optical device
JP5163694B2 (en) 2010-05-28 2013-03-13 ブラザー工業株式会社 Light source device and optical scanning device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4355110B2 (en) * 2001-03-19 2009-10-28 株式会社リコー Optical scanning device

Also Published As

Publication number Publication date
JP2008268348A (en) 2008-11-06

Similar Documents

Publication Publication Date Title
JP5038239B2 (en) Optical scanning apparatus and image forming apparatus
US20070273748A1 (en) Light scanning apparatus and image forming apparatus
JP4925623B2 (en) Optical scanning apparatus and image forming apparatus
JP2005148128A (en) Optical write-in device and image forming apparatus
JP2013113957A (en) Optical scanner and image forming device
JP2006267398A (en) Scanning optical apparatus and image forming apparatus
JP2017040756A (en) Optical scanner and image forming apparatus
JP2009198890A (en) Optical scanner
US7116457B2 (en) Optical scanning apparatus and image forming apparatus
JP5094513B2 (en) Optical scanning apparatus and image forming apparatus
JP2010282195A (en) Optical scanning device, beam curvature correction method and image forming apparatus
JP2006150687A (en) Optical writer and image forming apparatus
JP5980063B2 (en) Optical scanning device
JP4921024B2 (en) Image forming apparatus
JP5063170B2 (en) Optical scanning apparatus and image forming apparatus
JP2011048085A (en) Scanning optical apparatus and electrophotographic image forming apparatus
JP4654004B2 (en) Image forming apparatus
JP5213389B2 (en) Optical scanning apparatus and image forming apparatus
JP7118738B2 (en) Optical scanning device and image forming device
JP5264466B2 (en) Scanning optical device and image forming apparatus having the same
JP4342883B2 (en) Image forming apparatus
JP2006150836A (en) Optical writing device and image forming apparatus
JP2007034166A (en) Scanning optical apparatus and image forming apparatus
JP4641547B2 (en) Optical scanning device
JP2007065003A (en) Structure for supporting optical scanner, and image forming apparatus

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100419

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100430

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20111219

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120110

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120308

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120710

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120807

R151 Written notification of patent or utility model registration

Ref document number: 5063170

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150817

Year of fee payment: 3