JPH03239266A - Image recorder - Google Patents

Abstract

PURPOSE:To prevent the reduction of accuracy from occurring in an optical element part, to miniaturize an image recorder and to reduce the cost thereof by providing a supporting leg device which can appear in an up-and-down direction according to the ruggedness of a ground surface at least at one spot on the ground part of the recorder main body. CONSTITUTION:A base cover 3 is integrally formed with a part 2 where an optical system 1 is arranged, and a side plate where a developing device 4, a cleaning device 5 and a fixing device 6, etc., are arranged and a driving system side plate which drives the devices 4, 5 and 6 are disposed on the base cover 3, then the leg device 7 is attached to the bottom surface of the base cover 3. The leg device 7 is mainly constituted of a stopper part 20 which protrudes from the bottom surface of the base cover 3, an engaging hole 21 provided around the stopper part 20, a spring 22 and a leg 23. Therefore, in a state where the ground surface is recessed, the supporting leg part 24 protrudes downward by the energizing force of the spring 22 so as to keep the recorder main body level owing to the balance with other leg device and leg. Thus, the degrading of the accuracy in the optical element part is prevented from occurring, the recorder is miniaturized and the cost thereof is reduced.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はレーザープリンタ、レーザーファクシミリ、レ
ーザー複写機等の光ビーム記録を行なう画像記録装置に
関し、特にその支持脚の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image recording apparatus that performs light beam recording such as a laser printer, a laser facsimile, a laser copying machine, etc., and particularly relates to an improvement of the supporting legs thereof.

〔従来の技術〕[Conventional technology]

レーザービームを使用する画像記録装置は画像情報を感
光体に潜像化する光学系と、潜像を顕像化する作像系、
給紙部、レジスト部等を支持し且つ装置本体を設置する
ゴム足を取付けるベースとは別々の部材に保持させるの
が一般的であった（例えば特開昭６１−２７９８６９号
公報）。ところが近年では光学系とベースが一体部品で
構成されたり、光学系要素作像系が同一部材に支持され
るような構成が提案されている（例えば特開昭６３−２
２１３６７号公報、特開昭６４−１７０７６号公報参照
〉。このような構成がとれるようになったのは、近年の
樹脂成形技術の発展と樹脂材料の改良によるとこが多い
。An image recording device that uses a laser beam has an optical system that converts image information into a latent image on a photoreceptor, an imaging system that converts the latent image into a visible image,
It has been common practice to support the paper feed section, the registration section, etc. and to hold the device on a separate member from the base to which the rubber feet on which the main body of the device is attached are attached (for example, Japanese Patent Laid-Open Publication No. 61-279869). However, in recent years, configurations have been proposed in which the optical system and the base are constructed as an integral part, or in which the optical system elements and the imaging system are supported by the same member (for example, Japanese Patent Laid-Open No. 63-2
21367, JP-A-64-17076>. This type of configuration has become possible due to recent developments in resin molding technology and improvements in resin materials.

このような新しい構造を採用した場合には、光学系から
照射するレーザービームと作像系感光体の位置関係精度
を向上させ得ること、例えば光学系のためのハウジング
が不要となる等の部品点数削減による低コスト化、組立
工数の低減化、装置本体の小型化等を実現できることな
どの多くの利点がある。If such a new structure is adopted, the accuracy of the positional relationship between the laser beam irradiated from the optical system and the photoreceptor of the imaging system can be improved, and the number of parts can be reduced, such as eliminating the need for a housing for the optical system. There are many advantages such as cost reduction through reduction, reduction in assembly man-hours, miniaturization of the device body, etc.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

しかしながら、非常に高い取付は精度を要する光学素子
（例えばレンズ、ミラー）を取付けるための部材に、例
えば作像系のような重量のある他部材を取り付けること
があり、装置本体を接地する面の平面度が悪い場合、従
来のようなゴム足のみでは重量物が搭載されている部品
が曲がったりねじれたりした場合に光学素子部に精度の
狂いを生じさせることがあるという問題がある。However, very high-level installation may involve attaching other heavy components, such as an imaging system, to the component for attaching optical elements (e.g. lenses, mirrors) that require precision, and the If the flatness is poor, there is a problem in that using only the conventional rubber feet may cause a loss of accuracy in the optical element when a component on which a heavy object is mounted is bent or twisted.

この問題は装置を使用するユーザー側も関係する問題で
あり、装置側で何か対応しない限り解決が難しい。例え
ばゴム足の上下方向自由度を大きくするためゴム材料を
やわらかなものにしたり、ゴム足高さを大きくしたりす
ることにより接地面の凹凸に対応するためが考えられる
が、この場合上下方向自由度だけでなく横方向にも自由
度が大きくなり、かえって接地不安定となつしてしまう
ことが考えられる。This problem also affects the users of the devices, and is difficult to solve unless something is done on the device side. For example, in order to increase the vertical freedom of the rubber feet, the rubber material may be made softer, or the height of the rubber feet may be increased to accommodate unevenness on the ground surface, but in this case, the vertical freedom is increased. It is conceivable that the degree of freedom increases not only in the horizontal direction but also in the lateral direction, resulting in unstable ground contact.

近年記録装置においてはその画像品質への要求が高まり
、画素密度は２４０ｄｐｉ、　３００ｄｐｉ、　４８０
ｄｐｉ、　６００ｄｐｉとその細かさが要求されており
、画素密度を決定する光学系への要求精度の向上へ即は
ね返ってきているという状況であり、上記の問題は非常
に重大なものとなっている。In recent years, the demand for image quality has increased in recording devices, and the pixel density has increased to 240 dpi, 300 dpi, and 480 dpi.
dpi, 600 dpi and finer details are required, and the situation is such that there is an immediate rebound in the demand for improved precision in the optical system that determines pixel density, and the above problem has become extremely serious. .

〔課題を解決するための手段〕[Means to solve the problem]

本発明は上記従来の問題に鑑みてなしたもので、記録情
報に応じて変調された光ビームを用いて感光体を走査す
る画像記録装置において、記録装置本体の接地部の少な
くともｌか所に、接地面の凹凸にならって上下方向に出
没可能な支持脚装置を設けたことを特徴とするものであ
る。The present invention has been made in view of the above-mentioned conventional problems, and includes an image recording apparatus that scans a photoreceptor using a light beam modulated according to recorded information. This device is characterized by being provided with a support leg device that can move up and down in accordance with the unevenness of the ground surface.

また本発明は、接地脚上部に突出形成した保持部材を上
記接地部に設けた孔内に嵌入保持させ、かつ上記接地脚
若しくは保持部材を弾性部材により下方へ突出付勢して
上記脚装置を構成したものとすることができる。Further, the present invention provides a structure in which a holding member formed protrudingly on the upper part of the grounding leg is fitted and held in a hole provided in the grounding part, and the grounding leg or the holding member is urged to protrude downward by an elastic member, so that the leg device can be operated. It can be configured.

〔実施例〕〔Example〕

以下本発明の実施例を図面を参照して説明する。 Embodiments of the present invention will be described below with reference to the drawings.

第２図は本発明が実施される記録装置例を示す。図に示
すようにこの記録装置は、光学系１を配置する部分２と
ベースカバー３とを一体に形成し、そのベースカバー３
上に現像器４、クリーニング器５、定着器６などを配置
する側板及びそれらを駆動する駆動系側板（両側板とも
図示せず）等を配し、ベースカバー３の下面に脚装置７
を取付けて構成したものである。FIG. 2 shows an example of a recording apparatus in which the present invention is implemented. As shown in the figure, this recording device has a portion 2 in which an optical system 1 is disposed and a base cover 3 that are integrally formed.
A side plate for arranging the developing device 4, cleaning device 5, fixing device 6, etc. and drive system side plates for driving them (both side plates are not shown) are arranged on the top, and a leg device 7 is arranged on the bottom surface of the base cover 3.
It is constructed by attaching.

なお図中８は給紙ローラ、９はレジストローラ、ｌＯは
感光体、１１は接地台である。In the figure, 8 is a paper feed roller, 9 is a registration roller, 10 is a photoreceptor, and 11 is a grounding table.

第１図Ａ、Ｂは本発明の一実施例を示す断面図であり、
第１図Ａは接地面が凹んでいる状態の場合に脚が最も下
方に伸びた場合及び運搬時等のように受けのない場合を
示し、第１図Ｂは逆に接地面が凸面状の場合で脚が最も
上方に縮んだ場合を示す断面図である。FIGS. 1A and 1B are cross-sectional views showing one embodiment of the present invention,
Figure 1A shows the case when the ground contact surface is concave and the legs are extended to the lowest point, and when there is no support such as during transportation. FIG. 4 is a cross-sectional view showing the case where the legs are contracted most upwardly.

本実施例の脚装置７は主に、ベースカバー３の下面に突
設したストッパ一部２０と、ストッパー部２０の周囲に
設けた係合孔２１と、スプリング２２と及び脚２３とか
らなる。The leg device 7 of this embodiment mainly includes a stopper portion 20 protruding from the lower surface of the base cover 3, an engagement hole 21 provided around the stopper portion 20, a spring 22, and a leg 23.

ストッパ一部２０は接地台１１上での脚２３の移動を制
止すると共に、スプリング２２を嵌合保持するためのも
のである。The stopper part 20 is for stopping the movement of the leg 23 on the ground platform 11 and for fitting and holding the spring 22.

脚２３は支持脚部２４の周囲に保持部材２５を上方に向
けて突出させた断面が略逆凸字状を有するものである。The leg 23 has a substantially inverted convex cross-section with the holding member 25 projecting upward around the support leg portion 24 .

支持脚部２４はストッパ一部２０に嵌合するようになっ
ており、最も下方に降りた状態のときでも上端がストッ
パ一部２０の下端とオーバーラツプして円周方向には動
かないようになっている。またその底面には粘性部材２
６が貼り付けである。この粘性部材２６は例えばゴムや
粘性樹脂など考えられるが、支持脚部２４が接地台１１
上ですべらないようにできればどのようなものでもよい
。The support leg part 24 is adapted to fit into the stopper part 20, so that even when it is in the lowest position, the upper end overlaps the lower end of the stopper part 20 and does not move in the circumferential direction. ing. In addition, there is a viscous member 2 on the bottom surface.
6 is pasting. This viscous member 26 may be, for example, rubber or viscous resin.
Any material will do as long as it prevents it from slipping on the top.

保持部材２５は端部に係止部２７を設けてあり、−旦係
合孔２１に嵌入させると簡単には抜けないようにしであ
る。The holding member 25 is provided with a locking portion 27 at its end so that once it is fitted into the engagement hole 21, it cannot be easily removed.

スプリング２２はストッパ一部２０と保持部材２５との
間に位置してストッパ一部２０の外周に嵌合した状態と
なっている。そしてその上端はベースカバー３の下面に
、下端は保持部材２５の上面に当接しており、脚２３全
体を下方に突出付勢するようになっている。このスプリ
ング２２のバネ定数は平坦面上に装置本体を接地させた
ときの荷重で且つその高さが他の脚と一致するという条
件を中心に変位により変化せぬよう適宜選ぶ必要がある
。なお、このスプリング２２としてはコイルスプリング
のほかに弾性樹脂などが考えられる。The spring 22 is located between the stopper part 20 and the holding member 25 and is fitted to the outer periphery of the stopper part 20. The upper end thereof is in contact with the lower surface of the base cover 3, and the lower end thereof is in contact with the upper surface of the holding member 25, so that the entire leg 23 is urged to protrude downward. The spring constant of the spring 22 must be appropriately selected so as not to change due to displacement, with the condition that the load is the same as the height of the other legs when the main body of the device is grounded on a flat surface. The spring 22 may be made of elastic resin or the like in addition to a coil spring.

次に本実施例の動作について説明する。Next, the operation of this embodiment will be explained.

接地面が凹んでいる状態では、支持脚部２４はスプリン
グ２２の付勢力により下方へ突出し、他の脚装置や脚と
のバランスにより装置本体を水平に保つ。運搬時のよう
に脚装置を受ける台等がないときは支持脚部２４は第１
図Ａのように保持部材２５の係止部２７が係合孔２１に
係合する状態まで突出する。When the ground surface is recessed, the support leg portion 24 protrudes downward due to the biasing force of the spring 22, and maintains the main body of the device horizontally by balance with other leg devices and legs. When there is no stand etc. to receive the leg device, such as when transporting, the support leg 24 is
As shown in FIG. A, the locking portion 27 of the holding member 25 protrudes to a state where it engages with the engagement hole 21.

接地面が凸状態のときは脚２３に対する装置本体の荷重
の反力によりスプリング２２が縮み他の脚装置や脚との
バランスにより装置本体を水平に保つ。もっとも支持脚
部２４の上端がベースカバー３の下面に当接したところ
が最大の引っ込み状態である。この時スプリング２２は
各巻きの密着高さ以上の高さであり各コイル間に圧力は
ないようにする。又はかの種類の弾性体であればその弾
性範囲内で接地面からの圧力がフリーになったとき第１
図Ａの状態に戻らなければならない。When the ground plane is in a convex state, the spring 22 is compressed by the reaction force of the load of the device main body against the legs 23, and the device main body is kept horizontal by balance with other leg devices and legs. However, the position where the upper end of the support leg portion 24 comes into contact with the lower surface of the base cover 3 is the maximum retracted state. At this time, the height of the spring 22 is higher than the height of each coil in close contact with each other, so that there is no pressure between each coil. Or, in the case of this type of elastic body, when the pressure from the ground surface becomes free within its elastic range, the first
We must return to the state shown in Figure A.

〔発明の効果〕〔Effect of the invention〕

本発明に係る画像記録装置は以上説明してきたように、
記録装置本体の接地部の少なくとも１か所に、接地面の
凹凸にならって上下方向に出没可能な支持脚装置を設け
たので、装置本体を接地する面の平面度が悪くても装置
を平坦状に接地しておくことができるので、光学素子部
に精度の狂いを生じさせることがなく、光学系とベース
カバー、側板等の一体モールド化を図っても充分な印字
装置性能を確保することができるようになり、一体モー
ルド化による部品点数低減、組立工数低減装置の小型化
、低コスト化等の利点を十分に期待しうるようになると
いう効果がある。As explained above, the image recording device according to the present invention has the following features:
A supporting leg device that can move up and down in the vertical direction following the unevenness of the ground surface is installed at at least one place on the grounding part of the recording device main body, so the device can be kept flat even if the surface on which the main body touches the ground is not flat. Since it can be grounded in the same way, there is no loss of accuracy in the optical element part, and sufficient printing device performance can be ensured even if the optical system, base cover, side plate, etc. are integrated into one mold. This has the effect that advantages such as a reduction in the number of parts due to integral molding, a reduction in assembly man-hours, a reduction in the size of the device, and a reduction in cost can be fully expected.

【図面の簡単な説明】[Brief explanation of drawings]

第工図Ａ、Ｂは本発明の一実施例を示す断面図、第２図
は本発明が実施される記録装置例を示す断面図である。 １：光学系　　　　　３：ベースカバー４：現像器　　
　　　５：クリーニング器６：定着器　　　　　７：脚
装置 ８：給紙ローラ　　　９ニレジストローラ１０：感光体
　　　　１１：接地台 ２０：ストッパ一部　２１：係合孔 ２２ニスプリング　　２３：脚 ２４：支持脚部　　　２５：保持部材 ２６：粘性部材　　　２７：係止部Figures A and B are cross-sectional views showing one embodiment of the present invention, and Figure 2 is a cross-sectional view showing an example of a recording apparatus in which the present invention is implemented. 1: Optical system 3: Base cover 4: Developing device
5: Cleaning device 6: Fixing device 7: Leg device 8: Paper feed roller 9 Ni registration roller 10: Photoconductor 11: Grounding base 20: Part of stopper 21: Engagement hole 22 spring 23: Leg 24: Support leg portion 25: Holding member 26: Viscous member 27: Locking part

Claims (2)

【特許請求の範囲】[Claims] （１）記録情報に応じて変調された光ビームを用いて感
光体を走査する画像記録装置において、記録装置本体の
接地部の少なくとも１か所に、接地面の凹凸にならって
上下方向に出没可能な支持脚装置を設けたことを特徴と
する画像記録装置。(1) In an image recording device that scans a photoreceptor using a light beam modulated according to recording information, the image appears in at least one place on the ground contact portion of the recording device body in a vertical direction following the unevenness of the contact surface. An image recording device characterized in that it is provided with a possible support leg device. （２）上記脚装置は、接地脚上部に突出形成した保持部
材を上記接地部に設けた孔内に嵌入保持させ、かつ上記
接地脚若しくは保持部材を弾性部材により下方へ突出付
勢してなる請求項１の画像記録装置。(2) The leg device has a holding member formed protruding from the upper part of the grounding leg that is fitted and held in a hole provided in the grounding part, and the grounding leg or the holding member is biased to protrude downward by an elastic member. An image recording device according to claim 1.