JPS62147472A - Adjusting method for image formation position on photosensitive body - Google Patents
Adjusting method for image formation position on photosensitive bodyInfo
- Publication number
- JPS62147472A JPS62147472A JP60288303A JP28830385A JPS62147472A JP S62147472 A JPS62147472 A JP S62147472A JP 60288303 A JP60288303 A JP 60288303A JP 28830385 A JP28830385 A JP 28830385A JP S62147472 A JPS62147472 A JP S62147472A
- Authority
- JP
- Japan
- Prior art keywords
- focus lens
- array
- led array
- projection plate
- short focus
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/447—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources
- B41J2/45—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources using light-emitting diode [LED] or laser arrays
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Dot-Matrix Printers And Others (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
イ）産業上の利用分野
本発明は、モノリシック発光ダイオードアレイ（以下Ｌ
ＥＤアレイという）と短焦点レンズ列を露光手段として
備える静電記録装置の感光体への結像位置調整方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION A) Industrial Application Field The present invention is directed to monolithic light emitting diode arrays (hereinafter referred to as L
The present invention relates to a method for adjusting the imaging position on a photoreceptor of an electrostatic recording device that is equipped with an ED array (referred to as an ED array) and a short focus lens array as exposure means.
（ロ）従来の技術 静電記録装置に８ける感光体の露光手段には。(b) Conventional technology The exposure means for the photoreceptor in the electrostatic recording device is as follows.
電子複写機によく用いられるハロゲンランプ等の露光ラ
ンプによるスリット露光や、プリンタによく用いられる
り、ＥＤアレイによる露光等、様々な手段がある。記録
装置としては、鮮明な画像を提供することが重要であり
、そのためには、露光光の焦点が正確に感光体上で合う
ように調整することが必要である。感光体表面に焦点を
合わす調整は１例えば、特開昭５５−９３１７６号公報
に記載されているように、露光光を結像させるためのレ
ンズと感光体の間に隙間ゲージなる治具を挿入してその
間隔を定める事で行うのが一般的である。There are various methods, such as slit exposure using an exposure lamp such as a halogen lamp that is often used in electronic copying machines, and exposure using an ED array that is often used in printers. As a recording device, it is important to provide a clear image, and for this purpose, it is necessary to adjust the focus of the exposure light so that it is accurately focused on the photoreceptor. Adjustment to focus on the surface of the photoreceptor is 1. For example, as described in Japanese Patent Laid-Open No. 55-93176, a jig called a gap gauge is inserted between the lens for forming an image of the exposure light and the photoreceptor. This is generally done by determining the interval.
しかし、結像（焦点位置）の微調整として、実際に記録
紙に記録された像をみて判断を下しながら、最終的な調
整作業を行う必要があった。However, in order to fine-tune the image formation (focal position), it was necessary to perform the final adjustment while making a judgment based on the image actually recorded on the recording paper.
（ハ）発明が解決しようとする問題点
上述のように、結像の□微：Ａ整は、調整する毎に記録
装置を作動させ、実際に記録紙への記録を行う８鷺があ
り、＆−１整作業の能率が悪（、調整作業に伴うコスト
も高いものであった。(C) Problems to be Solved by the Invention As mentioned above, when adjusting the image formation fineness: A, there are eight steps in which the recording device is activated each time the image is adjusted and the recording is actually performed on the recording paper. &-1 The efficiency of the adjustment work was poor (and the cost associated with the adjustment work was also high).
本発明は、ＬＥＤアレイと短焦点レンズ列を露光手段と
して備える静１１８を録装置において、結像の微調整を
行う際に、いちいち装置を動作させて記録紙に記録する
必要のない、感光体位置調整方法を提供するものである
。The present invention provides a photoreceptor that does not require operating the device each time to record on a recording paper when finely adjusting the image formation in a recording device using a static 118 equipped with an LED array and a short focus lens array as exposure means. This provides a position adjustment method.
゛ に）問題点を解決するための手段
本発明は、ＬＥＤアレイと雑魚７ウレンズ列を露光手段
として備える静″ｒＬｉ記ｕｃ４Ａ難の感光体への結像
位置調整方法において、ＬＥＬ）アレイとｒＪ焦点レン
ズ列は一体に形成され、これらＬ Ｅ ｌ）アレイと短
焦点レンズ列は、このＬＥＤアレイと短焦点レンズ列の
光軸方向に移動可能で、且つ短焦点レンズ列の列方向に
延在する軸を中心に回動可能に設けられており、
ＬＥＤアレイと短焦点レンズ列が回動する中心軸からこ
の中心軸と感光体表面までの距離と等しい距離にある位
置に、前記短焦点レンズ列を通した前記ＬＥＤアレイの
光を投射する投射板を設置して、該投射板に写された光
の像の大きざに応じて、ＬＥＤアレイと短焦点レンズ列
をその光軸方向に移動させる感光体への結像位置調整方
法である。Means for Solving the Problems The present invention provides a method for adjusting the imaging position on a static photoconductor, which is equipped with an LED array and an array of lenses as exposure means. The focus lens row is integrally formed, and the L E l) array and the short focus lens row are movable in the optical axis direction of the LED array and the short focus lens row, and extend in the row direction of the short focus lens row. The short focus lens is provided so as to be rotatable about an axis around which the LED array and the short focus lens row rotate, and the short focus lens is positioned at a distance equal to the distance from the central axis around which the LED array and the short focus lens row rotate. A projection plate that projects the light of the LED array through the array is installed, and the LED array and the short focus lens array are moved in the direction of the optical axis according to the size of the image of the light reflected on the projection plate. This is a method for adjusting the position of image formation on a photoreceptor.
レホ）作 用
投射板に写された光の大きさに応じて、一体に形成され
たＬＥＤアレイと短焦点レンズ列を移動させることで、
感光体への結像、の微調整がなされる。即ち結像の調整
作業特に、ｆｉｅ緑紙への記録を行う必要はなくなる。By moving the integrated LED array and short focus lens array according to the size of the light reflected on the projection plate,
Fine adjustment of the image formation on the photoreceptor is made. That is, there is no need to perform image formation adjustment work, especially recording on FIE green paper.
ｂ）実施例
第１図は本発明に係る一実施例の静電プリンタの概略断
面図である。山はプリンタ本体で、（２）はプリンタ本
体（１）のほぼ中央部に、支持軸（３）により支持され
た感光体ドラムである。この感光体ドラム（２）の周囲
には、感光ｆｉｌｌｌこ静電潜像を形成する露光光学系
（４１，静電潜像をト、ナー現像する現像装置＋５１．
）ナー像を記録紙（６＋に転写する転写用コロトロ／＋
７１．２よｑ感光体ドラム（２）上の残留トナーをクリ
ーニングｆるクリーニング装置（８１が、囚中時計方回
に順次配備されている。現像ｊ［ｔ１５＋には。b) Embodiment FIG. 1 is a schematic sectional view of an electrostatic printer according to an embodiment of the present invention. The mountain is the printer body, and (2) is a photosensitive drum supported by a support shaft (3) approximately in the center of the printer body (1). Around the photosensitive drum (2), there is a photosensitive fill, an exposure optical system (41) for forming an electrostatic latent image, a developing device (51) for developing the electrostatic latent image, and a developing device (51) for developing the electrostatic latent image.
) Corotro/+ for transferring the color image to the recording paper (6+)
71.2 Cleaning devices (81) for cleaning residual toner on the photoreceptor drum (2) are sequentially arranged clockwise in the prisoner.
電磁クラッチを介してモータに連結された、１グネツト
ローラ（９：が回転目在に内装されて、いる。露光光学
系（４１はモノリシック発光ダイオードアレイ（Ｊ２を
下ＬＥＤアレイという。）（ＩＣと、このＬＥＤアレイ
（１０１にて形成された書画像を感光面に結像する短焦
点レンズ列α１１とにより構成され、この寧焦点レンジ
列ｕｌｌの上流側には、感光面を帯電させる帯＄３ ＃
Ｉ ：４０トロン■が固設される。また、クリーニング
装置（８）には、感光面の残留−位を除去する除電用コ
ロトロンｕ３と、残留トナーを掻き落とすブレード（１
４）が備えられ、このブレ７ド（１４１により掻き落と
された残留トナーは、移送ローラ（１５）により残留ト
ナー収納箱０６；に移送される。なお、前記ブレード（
１４）は、電磁プランジャにて感光体ドラム（２）に接
離するよう構成されている。そして転写用コロトロン（
７）の下欅側に体、記録紙（６１を感光体ドラム＋２１
から分離する１分離用コロトロン（１７）が隣接配備さ
れる。A magnet roller (9) is connected to the motor via an electromagnetic clutch, and is installed in the rotary position.An exposure optical system (41 is a monolithic light emitting diode array (J2 is referred to as the lower LED array)) (IC and This LED array (101) is composed of a short focus lens array α11 that focuses the written image formed on the photosensitive surface, and on the upstream side of this focusing range array ULL, there is a band $3 that charges the photosensitive surface.
I: 40 tron ■ will be permanently installed. The cleaning device (8) also includes a corotron U3 for removing static electricity that removes residual toner from the photosensitive surface, and a blade (1) that scrapes off residual toner.
The residual toner scraped off by the blade (141) is transferred to the residual toner storage box 06 by the transfer roller (15).
14) is configured to move toward and away from the photosensitive drum (2) using an electromagnetic plunger. and a corotron for transcription (
7) Place the body on the lower keyaki side, record paper (61 is the photoreceptor drum + 21)
A 1-separation corotron (17) is placed adjacent to the 1-separation corotron.
＋ＩＩＤは複数の記録紙１６＋が積載収納された給紙カ
セットで、その上部には二給紙カセット（１８１内の最
上部の記録紙（６１を間欠的に給送するｌ：ｂの、電磁
クラッチを介してモータに連結きれた給紙ローラ（１９
１が圧接されている。ｔ２１ｍは給紙カセット１１８１
の下流側の上部に設けられたレジスタローラで、給紙ロ
ーラ１１９にて給送された記録紙（９）を一旦停止ゼし
５）。+IID is a paper feed cassette in which a plurality of recording papers 16+ are stacked and stored, and at the top there is an electromagnetic clutch for intermittently feeding the uppermost recording paper (61) in the two paper supply cassettes (181). Paper feed roller (19) connected to the motor via
1 is pressed together. t21m is paper cassette 1181
The recording paper (9) fed by the paper feed roller 119 is temporarily stopped by a register roller provided at the upper part of the downstream side of the paper (5).
タイミングを見計らって転写位置へ再給送するものでｉ
）る。なＳ、このレジスタローラｌ■と前記給紙ローラ
（１９間には、給紙ガイド＋２１１１２１１がｔｒｈえ
られる。ｃｌ、≧）は分離用コロトロン（１７１の下流
側に設けられたバ牛ワムコンベアで、転写後のｉ１シ録
紙（６）を定宿部に移送するものである。なあ、給紙宿
セ・サトｕ８１からバキウムコンベアのまでの構成部品
は一体化され、プリンタ本体（１）より右方向に引き出
し可能に設けられている。It re-feeds the material to the transfer position based on the timing.i
). A paper feed guide +2111211 is installed between this register roller l■ and the paper feed roller (19. cl, ≧) is a backwham conveyor provided downstream of the separating corotron (171). This is to transport the i1 recording paper (6) after transfer to the fixed storage section.The components from the paper feed station U81 to the vacuum conveyor are integrated, and the right side of the printer body (1) It is provided so that it can be pulled out in any direction.
■は定行装置であり、ヒータ（至）が内蔵された加熱ロ
ーラーと、この加熱ローラ面にトナーが転写された記録
紙（６）を押圧する抑圧ローラ（澱と、トナーが定着さ
れた記録紙（６）を排紙する排紙ローラ面のとにより構
成される。なお、この定着装置のも一体化され、図中左
方向に引き出し可能に設けられる。■ is a fixing device, which includes a heating roller with a built-in heater, and a suppression roller that presses the recording paper (6) on which toner has been transferred to the surface of this heating roller. It is composed of a paper ejecting roller surface that ejects the paper (6).The fixing device is also integrated and is provided so as to be able to be pulled out to the left in the figure.
なＪ、手前側のカバー（図示せず）にはセーフティスイ
ッチが設けられ、このカバーを閉成しない限り、プリン
ト動作をしないように構成されている。A safety switch is provided on the front cover (not shown), and the printer is configured not to print unless the cover is closed.
また、（支）は露光光学系の感光体表面への結像位置を
調整するときに露光光を、投射する磨りガラスよりなる
投射板で１図示しないかます目が入っている。■は短焦
点レンズ列のレンズ面をりＩＪ ＋ニングするブラシで
ある。Further, (support) is a projection plate made of frosted glass that projects exposure light when adjusting the image formation position of the exposure optical system on the surface of the photoreceptor, and has one square not shown in the figure. (2) is a brush for cleaning the lens surface of the short focus lens array.
露光光学系（４）の側面図を第２図に、一部正面図を第
３図に示す。ＬＥＤアレイ（１０１と短焦点レンズ列（
１１１は一体になっており、これはフレーム■に備えた
バネ■とネジ（至）によって挾持されている。フレーム
■は、ＬＥＤアレイ（ＩＩと短焦点レンズ列Ｕυの光軸
上の１点にある前記短焦点レンズ列ｕ１１の列方向に延
在Ｔる軸である中心軸Ｇ旧こ回転可能に取り付けである
。前記ネジ（至）はＬＥＤアレイ（１０１の両端１こ設
けられていて（第３図では片側のみ図示している）、２
つのネジ（２）の深度を調節することで。A side view of the exposure optical system (4) is shown in FIG. 2, and a partial front view is shown in FIG. 3. LED array (101) and short focus lens row (
111 is integrated, and this is held by a spring (■) and a screw (to) provided on the frame (■). The frame ■ is rotatably attached to the LED array (II) and the central axis G, which is an axis extending in the column direction of the short focus lens column u11 located at one point on the optical axis of the short focus lens column Uυ. One screw is provided at each end of the LED array (101 (only one side is shown in FIG. 3), and two screws are provided at both ends of the LED array (101).
By adjusting the depth of the two screws (2).
ＬＥＤアレイｔｌｌと短焦点レンズ列（１３Ｊはその光
軸方向の移動が許容されている。The LED array tll and the short focus lens array (13J) are allowed to move in the optical axis direction.
次に第４図を参照しつつ本発明方法を説明する。Next, the method of the present invention will be explained with reference to FIG.
感光体への結像位置を調整する時は、まず露光光学系（
４）を通常の露光位１１１Ｌ破線で示す）から中心軸■
を中心に角度θだけ回転させる。露光光学系（４）をこ
の状態に維持しつつ、該露光光学系の元軸上に、光軸に
対して垂直に投射板（支）を設置する。When adjusting the image formation position on the photoconductor, first adjust the exposure optical system (
4) from the normal exposure position 111L (shown by the broken line) to the central axis ■
Rotate by an angle θ around . While maintaining the exposure optical system (4) in this state, a projection plate (support) is installed on the original axis of the exposure optical system perpendicular to the optical axis.
該投射板（２）は、前記中心軸α；の中心から、この中
心と感光体ドラム（２）の表面までの距離Ｅと等しい距
離の位置に設＠される。そしてＬＥＤアレイ（１０）を
発光させて、前記投射＆（支）にＬＥＤアレイ１１０１
の光を投射する。投射根回に写った光の像の大きさが最
小となる（最も明るくなる）ように、前記ネジ（２）の
深度を調節してＬＥＤアレイｕｏ１と短焦点レンズ列ｕ
１１を移動させる。この時、投射仮にマス目が設けであ
ると光の像の大小の判断がしやす（１゜而して投射板に
対する結像の微調整がなされる。The projection plate (2) is placed at a distance from the center of the central axis α; equal to the distance E between this center and the surface of the photosensitive drum (2). Then, the LED array (10) is made to emit light, and the LED array 1101 is placed on the projection & (support).
Projects light. The depth of the screw (2) is adjusted so that the size of the light image reflected in the projection root gyrus is the smallest (the brightest), and the LED array uo1 and the short focus lens array u are
Move 11. At this time, if a projection grid is provided, it will be easier to judge the size of the light image (by 1 degree, fine adjustment of the image formation on the projection plate will be made).
即ち、中心軸Ｃ３１１の中心から投射板−までの距離と
感光体ドラム＋２）の表面までの距離は等しいので。That is, the distance from the center of the central axis C311 to the projection plate - and the distance to the surface of the photosensitive drum +2) are equal.
感光体ドラムへの結像位置の微調整がされたＣとになる
。従って後は露光光学系（４）を通常の位置に戻せばよ
い。調整後は投射板（支）は取り外しておいてもかまわ
ない。The result is C, in which the image formation position on the photoreceptor drum has been finely adjusted. Therefore, all that is required is to return the exposure optical system (4) to its normal position. After adjustment, the projection plate (support) can be removed.
本発明に８いて、４元光学系（４）は回動川面に設けら
れているので、短焦点レンズ列のレンズ表面を上方に向
けることができ、このレンズ表面のクリーニングが容易
にされる。また、第１図に示すように露光光学系（４）
が回動するときの短焦点レンズ列１１１のレンズ表面の
軌道付近にクリーニング用のプラクを設ける事でも、レ
ンズ表凹のクリーニングを容易に行える。According to the present invention, since the four-dimensional optical system (4) is provided on the rotating surface, the lens surface of the short focus lens array can be directed upward, and cleaning of this lens surface is facilitated. In addition, as shown in Fig. 1, the exposure optical system (4)
By providing a cleaning plaque near the orbit of the lens surface of the short focus lens array 111 when the lens rotates, cleaning of the lens surface concavities can be facilitated.
（トｌ 発明の効果
本発明は以上の説明から明ら力）な如く、短焦点レンズ
列を通過させたＬＥＤアレイの光が感光体の表面で結像
するように露ｆｔ、米の感光体への綻：像位置の調整を
行う時（乙調整する毎１こ記り装置を動作させて記録紙
に記録をする必要ｉ６５なｌ、％。ｈ［：録動作がない
分だけ調整作業は素早く行われ、ｌ己録に費やすコスト
が省かれる。また、ＬＥＤアレイと短焦点レンズ列が回
動６■能なので、短焦点レンズ列のレンズ表面のクリー
ニングも容易、Ｉこ行える。(Effects of the Invention The present invention is clear from the above description). Solution: When adjusting the image position (B) It is necessary to operate the writing device and record on the recording paper every time you make an adjustment. It can be done quickly and the cost of self-recording can be saved.Furthermore, since the LED array and the short focus lens array can be rotated 6 times, the lens surface of the short focus lens array can be easily cleaned.
第１図は本発明に係るプリンタの概略Ｋ １ｌｈ１図。
第２図は本発明に係る露光光学系の側面図、第３図は本
発明に係る露光光学系の一部正面図、第４図は本発明の
説明図である。
■・・・プリンタ本体、（２１・・・感光体ドラム、（
４；・・・露光光学系、＋ＩＩ・・・ＬＥＤアレイ、
Ｉｌｌ・・・短焦点レンズ列、＋２８１・・・投射板、
の・・・ブラシ、■・・・フレーム、Ｇｌｌ・・・中心
軸、＠・・・バネ、Ｃａ・・・ネジ。FIG. 1 is a schematic K1lh1 diagram of a printer according to the present invention. FIG. 2 is a side view of the exposure optical system according to the invention, FIG. 3 is a partial front view of the exposure optical system according to the invention, and FIG. 4 is an explanatory diagram of the invention. ■...Printer main body, (21...Photoconductor drum, (
4;... exposure optical system, +II... LED array,
Ill...Short focus lens array, +281...Projection plate,
...Brush, ■...Frame, Gll...Central axis, @...Spring, Ca...Screw.
Claims (1)
備える静電記録装置の感光体への、結像位置調節方法に
おいて、ＬＥＤアレイと短焦点レンズ列は一体に形成さ
れ、これらＬＥＤアレイと短焦点レンズ列は、このＬＥ
Ｄアレイと短焦点レンズ列の光軸方向に移動可能で、且
つ短焦点レンズ列の列方向に延在する軸を中心に回動可
能に設けられており、 ＬＥＤアレイと短焦点レンズ列が回動する中心軸から、
この中心軸と感光体表面までの距離と等しい距離にある
位置に、前記短焦点レンズ列を通した前記ＬＥＤアレイ
の光を投射する投射板を設置して、該投射板に写された
光の像の大きさに応じて、ＬＥＤアレイと短焦点レンズ
列をその光軸方向に移動させることを特徴とする感光体
への結像位置調整方法。(1) In a method for adjusting the imaging position on a photoreceptor of an electrostatic recording device that includes an LED array and a short focus lens array as exposure means, the LED array and the short focus lens array are integrally formed, and the LED array and the short focus lens array are integrally formed. The focal lens row is this LE
It is movable in the optical axis direction of the D array and the short focus lens row, and is rotatable about an axis extending in the row direction of the short focus lens row. From the moving central axis,
A projection plate for projecting the light of the LED array through the short focus lens array is installed at a position at a distance equal to the distance between this central axis and the surface of the photoreceptor, and the light reflected on the projection plate is A method for adjusting the position of an image on a photoreceptor, the method comprising moving an LED array and a short focus lens array in the direction of their optical axes according to the size of the image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60288303A JPS62147472A (en) | 1985-12-20 | 1985-12-20 | Adjusting method for image formation position on photosensitive body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60288303A JPS62147472A (en) | 1985-12-20 | 1985-12-20 | Adjusting method for image formation position on photosensitive body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62147472A true JPS62147472A (en) | 1987-07-01 |
Family
ID=17728422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60288303A Pending JPS62147472A (en) | 1985-12-20 | 1985-12-20 | Adjusting method for image formation position on photosensitive body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62147472A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988007728A1 (en) * | 1987-03-23 | 1988-10-06 | Eastman Kodak Company | Focusing for optical print heads |
| JPH0654998U (en) * | 1993-01-12 | 1994-07-26 | 雅郎 松本 | Propane gas cylinder heating device |
| US5612767A (en) * | 1994-05-16 | 1997-03-18 | Fujitsu Limited | Image forming device having an image-holding body which rolls on a recording sheet about an axis parallel to a conveying direction of the recording sheet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53129639A (en) * | 1977-04-19 | 1978-11-11 | Mita Industrial Co Ltd | Method of and device for electrostatic copying |
| JPS6037575A (en) * | 1983-08-10 | 1985-02-26 | Sanyo Electric Co Ltd | Method for adjusting optical system of printer |
-
1985
- 1985-12-20 JP JP60288303A patent/JPS62147472A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53129639A (en) * | 1977-04-19 | 1978-11-11 | Mita Industrial Co Ltd | Method of and device for electrostatic copying |
| JPS6037575A (en) * | 1983-08-10 | 1985-02-26 | Sanyo Electric Co Ltd | Method for adjusting optical system of printer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988007728A1 (en) * | 1987-03-23 | 1988-10-06 | Eastman Kodak Company | Focusing for optical print heads |
| US4893926A (en) * | 1987-03-23 | 1990-01-16 | Eastman Kodak Company | Focusing for optical print heads |
| JPH0654998U (en) * | 1993-01-12 | 1994-07-26 | 雅郎 松本 | Propane gas cylinder heating device |
| US5612767A (en) * | 1994-05-16 | 1997-03-18 | Fujitsu Limited | Image forming device having an image-holding body which rolls on a recording sheet about an axis parallel to a conveying direction of the recording sheet |
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