JPH02311076A - Original reader - Google Patents

Original reader

Info

Publication number
JPH02311076A
JPH02311076A JP1133059A JP13305989A JPH02311076A JP H02311076 A JPH02311076 A JP H02311076A JP 1133059 A JP1133059 A JP 1133059A JP 13305989 A JP13305989 A JP 13305989A JP H02311076 A JPH02311076 A JP H02311076A
Authority
JP
Japan
Prior art keywords
document
original
reading
read
opening
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
Application number
JP1133059A
Other languages
Japanese (ja)
Inventor
Makoto Hino
真 日野
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP1133059A priority Critical patent/JPH02311076A/en
Publication of JPH02311076A publication Critical patent/JPH02311076A/en
Pending legal-status Critical Current

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  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE:To improve the read performance by applying subscanning movement to an image sensor and a read opening integrally to an original placed on an original support face. CONSTITUTION:When a start switch is operated, a left plate member 9 is descended down and a right plate member 10 is listed up and an image sensor 3 is moved to the left. Then an original support sheet 12 is drawn sequentially in the reader from a read opening 11 and an original support sheet 13 is drawn sequentially from the read opening 11 onto the member 10, since original support faces 16, 17 are not moved, the original 19 is supported at the placed position. Then the read opening 11 and the sensor 3 are moved to the left integrally in the subscanning to the original 19 and the original face is read as consecutive main scanning lines. In this case, the original 19 on the read opening 11 is excellently lighted by a direct ray of a fluorescent light 4 placed very closely and the picture is read with a high efficiency by an array 6.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はデジタル複写機やファクシミリ等の機器の原稿
読取部に利用される原稿読取装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an original reading device used in an original reading section of equipment such as a digital copying machine and a facsimile machine.

従来の技術 まず、原稿読取装置の従来例を第6図に基づいて説明す
る。この原稿読取装置lでは、原稿(図示せず)が載置
されるコンタクトガラス2が水平に配置され、このコン
タクトガラス2に下方からイメージセンサ3が対向配置
されている。ここで、このイメージセンサ3は、両側に
アパーチャ蛍光灯4が配置されたロッドレンズアレイ5
の光軸上に、受光素子アレイ6を配設した+14造とな
っている。
Prior Art First, a conventional example of a document reading device will be described with reference to FIG. In this document reading device 1, a contact glass 2 on which a document (not shown) is placed is arranged horizontally, and an image sensor 3 is arranged facing the contact glass 2 from below. Here, this image sensor 3 includes a rod lens array 5 with aperture fluorescent lamps 4 arranged on both sides.
It has a +14 structure in which a light receiving element array 6 is arranged on the optical axis.

このような構成において、この原稿読取装置lでは、原
稿は読取る原稿面を下にしてコンタクトガラス2上に載
置され、上方から当接する搬送ベルト(図示せず)等に
より順次搬送されてゆく。そこで、この副走査移動する
原稿の画像は、コンタクトガラス2を介してアパーチャ
蛍光灯4に照明され、ロッドレンズアレイ5により受光
素子アレイ6上に結像されて順次光電変換され、主走査
ラインの連続として読取られてゆく。
With this configuration, in the document reading device 1, the document is placed on the contact glass 2 with the surface to be read facing down, and is sequentially conveyed by a conveyor belt (not shown) or the like that abuts from above. Therefore, the image of the document moving in the sub-scanning direction is illuminated by the aperture fluorescent lamp 4 through the contact glass 2, focused on the light-receiving element array 6 by the rod lens array 5, and sequentially photoelectrically converted. It is read as a series.

発明が解決しようとする課題 上述のような原稿読改装e1は、構造も簡単で各種の機
器に利用されている。だが、原稿を保持するためにコン
タクトガラス2を使用しているため、イメージセンサ3
はコンタクトガラス2を介して画像を読取る必要がある
。また、画像を良好に読取るためにはアパーチャ蛍光灯
4を原稿に近接させて画像を効率高く照明することが望
ましい。
Problems to be Solved by the Invention The above-described manuscript reading/renovation e1 has a simple structure and is used in various devices. However, since the contact glass 2 is used to hold the original, the image sensor 3
It is necessary to read the image through the contact glass 2. Further, in order to read the image well, it is desirable that the aperture fluorescent lamp 4 be placed close to the document to efficiently illuminate the image.

だが、上述のような原稿読取装置lでは、アパーチャ蛍
光灯4とコンタクトガラス2とが近接すると、このコン
タクトガラス2の反射光がロッドレンズアレイ5に入射
して画像の読取が阻害されることになる。
However, in the above-described document reading device 1, when the aperture fluorescent lamp 4 and the contact glass 2 come close to each other, the reflected light from the contact glass 2 enters the rod lens array 5, impeding image reading. Become.

課題を解決するための手段 請求項1記載の発明は、主走査方向に長い読取開口と読
取開口の副走査方向両側に位置する原稿支持面とを備え
た原稿保持部材を設け、この原稿保持部材の読取開口に
下方から対向配置されたイメージセンサを設け、原稿支
持面に載置された原稿に対してイメージセンサと読取開
口とを一体的に副走査移動させる副走査手段を設ける。
Means for Solving the Problems The invention as set forth in claim 1 provides a document holding member having a reading aperture that is long in the main scanning direction and document supporting surfaces located on both sides of the reading aperture in the sub-scanning direction. An image sensor is provided facing the reading opening from below, and sub-scanning means is provided for integrally moving the image sensor and the reading opening in a sub-scanning direction with respect to the document placed on the document support surface.

請求項2記載の発明は、縁部がフレームに固定されて読
取開口から装置内部に巻回されたシート状の原稿保持部
材を設ける。
According to a second aspect of the present invention, a sheet-like document holding member whose edge portion is fixed to the frame and is wound into the inside of the apparatus from the reading opening is provided.

作用 主走査方向に長い読取開口と読取開口の副走査方向両側
に位置する原稿支持面とを備えた原稿保持部材を設け、
この原稿保持部材の読取開口に下方から対向配置された
イメージセンサを設け、原稿支持面に載置された原稿に
対してイメージセンサと読取開口とを一体的に副走査移
動させる副走査手段を設けたことにより、イメージセン
サはコンタクトガラスなどを隔てることなく読取開口か
ら原稿面を直接読取ることができ、かつ、コンタクトガ
ラスの反射光が存しないためイメージセンサの光源を原
稿面に近接させることが容易なので、原稿面を直射光で
良好に照明することができる。
A document holding member having a reading aperture that is long in the main scanning direction and document support surfaces located on both sides of the reading aperture in the sub-scanning direction is provided,
An image sensor is provided facing the reading opening of the document holding member from below, and sub-scanning means is provided for integrally moving the image sensor and the reading opening in a sub-scanning direction with respect to the document placed on the document support surface. As a result, the image sensor can directly read the document surface from the reading aperture without using a contact glass, etc., and since there is no reflected light from the contact glass, it is easy to place the image sensor's light source close to the document surface. Therefore, the surface of the document can be well illuminated with direct light.

さらに、縁部がフレームに固定されて読取開口から装置
内部に巻回されたシート状の原稿保持部材を設けること
で、原稿支持面が移動することなく読取開口は副走査移
動する。
Further, by providing a sheet-like document holding member whose edge is fixed to the frame and wound from the reading opening into the inside of the apparatus, the reading opening can move in the sub-scanning direction without moving the document supporting surface.

実施例 本発明の第一の実施例を第1図及び第′2図に基づいて
説明する。なお、前述の従来例と同一の部分は同一の名
称及び符号を用いて説明も省略する。
Embodiment A first embodiment of the present invention will be explained based on FIG. 1 and FIG. '2. Note that the same parts as in the conventional example described above are given the same names and numerals, and explanations thereof will be omitted.

まず、本実施例の原稿読取装置7では、フレームである
装置本体8の開口した上面から側面まで設けられたレー
ル(図示せず)に、多数の長板状部材を連結したプレー
ト部材9,10が移動自在に取付けられている。そして
、これらプレート部材9゜10間に設定された間隔であ
る読取開口11に、下方からイメージセンサ3が対向配
置されている。
First, in the document reading device 7 of this embodiment, plate members 9 and 10 are constructed by connecting a large number of long plate-like members to a rail (not shown) provided from the open top surface to the side surface of the device main body 8, which is a frame. is installed so that it can be moved freely. The image sensor 3 is disposed facing the reading opening 11 from below, which is spaced between the plate members 9° and 10°.

一方、原稿保持部材である原稿保持シート12゜13は
、一端が前記装置本体8の上部両側14に固定されて他
端に錘15が取付けられ、一定の張力が加えられた状態
で前記上部両側14から前記読取開口11の両縁部に巻
回されるようにして装置内部に設けられたローラ18ま
で張架されている。そこで、前記原稿保持シート12.
13の前記装置本体8の上部両側14から前記読取開口
11に張設された部分の上面が原稿支持面16,17ど
なっている。また、前記装置本体8の上部には、読取る
原稿19を前記読取開口11に押圧する抑圧板20が開
閉自在に取付けられている。なお、第2図に例示するよ
うに、この原稿読取装置7のアパーチャ蛍光灯4は前記
読取開口11に極めて近接した位置に配置されている。
On the other hand, the document holding sheets 12 and 13, which are document holding members, have one end fixed to both sides 14 of the upper part of the apparatus main body 8 and a weight 15 attached to the other end. 14 and is stretched around both edges of the reading opening 11 to a roller 18 provided inside the device. Therefore, the document holding sheet 12.
The upper surface of the portion extending from both upper sides 14 of the apparatus main body 8 to the reading opening 11 forms document support surfaces 16 and 17. Further, a suppressing plate 20 is attached to the upper part of the apparatus main body 8 so as to be openable and closable for pressing the document 19 to be read against the reading opening 11. Incidentally, as illustrated in FIG. 2, the aperture fluorescent lamp 4 of this document reading device 7 is arranged in a position extremely close to the reading opening 11.

また、前記プレート部材9.10及びイメージセンサ3
には、これら部材を一体的に副走査移動させる副走査手
段(図示せず)が連結されている。
Further, the plate member 9.10 and the image sensor 3
A sub-scanning means (not shown) for integrally moving these members in a sub-scanning direction is connected to the sub-scanning means (not shown).

このような構成において、この原稿読取装置7の初期状
態は、例えば1図中左側のプレート部材9が引上げられ
て右側のプレート部材10が引下げられ、読取開口11
とイメージセンサ3とが右方に移動し、装置上面は原稿
保持シート12に略被われた状態となっている。そこで
、この原稿読取装置7を使用して原稿19の原稿面を読
取る場合、抑圧板20を開け、原稿面を下にした原稿1
9を原稿保持シート12の原稿支持面16上に載置して
抑圧板20を閉じる。そこで、例えば、スタートスイッ
チ(図示せず)を操作すると副走査手段が作動し、左側
のプレート部材9が引下げられて右側のプレート部材1
0が引上げられると共にイメージセンサ3が左方に移動
する。すると、左側の原稿保持シート12は読取開口1
1から装置内部に順次引込まれ、右側の原稿保持シート
13は読取開口11からプレート部材IOの上に順次引
出されるが、これら原稿保持シート12.13の原稿支
持面16.17は移動しないので原稿19は載置された
位置に保持されている。そこで、読取開口11とイメー
ジセンサ3とが原稿19に対して左方に副走査移動する
ことになり、原稿面が主走査ラインの連続として読取ら
れる。この時、読取開口11上の原稿は極めて近接した
アパーチャ蛍光灯4の直射光により良好に照明されてお
り、その画像は受光素子アレイ6で効率高く読取られて
ゆく。
In such a configuration, the initial state of the document reading device 7 is, for example, when the plate member 9 on the left side in FIG. 1 is pulled up, the plate member 10 on the right side is pulled down, and the reading opening 11
and the image sensor 3 move to the right, and the top surface of the device is almost covered by the document holding sheet 12. Therefore, when reading the original side of the original 19 using this original reading device 7, the suppression plate 20 is opened and the original 19 is placed with the original side facing down.
9 is placed on the document support surface 16 of the document holding sheet 12, and the suppression plate 20 is closed. Therefore, for example, when a start switch (not shown) is operated, the sub-scanning means is activated, and the left plate member 9 is pulled down and the right plate member 1 is moved.
0 is pulled up and the image sensor 3 moves to the left. Then, the left document holding sheet 12 is placed in the reading opening 1.
The document holding sheets 13 on the right side are sequentially pulled out from the reading opening 11 onto the plate member IO, but the document supporting surfaces 16 and 17 of these document holding sheets 12 and 13 do not move. The original 19 is held at the placed position. Therefore, the reading aperture 11 and the image sensor 3 move in the sub-scan direction to the left with respect to the document 19, and the surface of the document is read as a series of main-scan lines. At this time, the document above the reading aperture 11 is well illuminated by direct light from the aperture fluorescent lamp 4 that is very close to it, and its image is read with high efficiency by the light receiving element array 6.

なお、本実施例の原稿読取装置7では、錘15により原
稿保持シート12.13を張設するものとしたが、本発
明はこれに限定されるものではなく、例えば、原稿保持
シート12.13の一端をスプリングで引くようにした
もの(図示せず)や。
Note that in the document reading device 7 of this embodiment, the document holding sheets 12.13 are stretched by the weights 15, but the present invention is not limited to this; for example, the document holding sheets 12.13 One end of which is pulled by a spring (not shown).

第3図に例示するように、連続した一枚の原稿保持部材
である原稿保持シート21が、装置本体8の四隅に取付
けられたローラ18を介して装置本体8の上部両側14
に取付けられた原稿読取装置22なども考えられる。こ
の場合、原稿保持シート21の張設状態は装置の組立時
などに調整することができ、原稿保持シート21の各部
で張力差が生じないので読取開口11近傍にたるみが生
じて誤動作が発生することが防止される。また、本実施
例の原稿読取装置7では、読取開口11を形成するため
、原稿保持シート12.13を支持する二つのプレート
部材9,10間に一定の間隔が設定されているものとし
たが、第4図に例示するように、読取開口23が形成さ
れた剛性が高いプレート24でプレート部材9.IOを
連結することも考えられ、この場合、読取開口23は変
形することがないので原稿19の読取動作が正確である
As illustrated in FIG. 3, a document holding sheet 21, which is a continuous document holding member, is transferred to both upper sides 14 of the device main body 8 via rollers 18 attached to the four corners of the device main body 8.
A document reading device 22 attached to the document reading device 22 may also be considered. In this case, the tension state of the document holding sheet 21 can be adjusted when assembling the device, and since there is no difference in tension between the various parts of the document holding sheet 21, sagging occurs near the reading aperture 11, resulting in malfunction. This will be prevented. In addition, in the document reading device 7 of this embodiment, in order to form the reading opening 11, a certain distance is set between the two plate members 9 and 10 that support the document holding sheet 12 and 13. , as illustrated in FIG. 4, a plate member 9. It is also possible to connect the IOs, and in this case, the reading aperture 23 will not be deformed, so the reading operation of the original 19 will be accurate.

つぎに、本発明の第二の実施例を第5図に基づいて説明
する。本実施例の原稿読取装置25では、第3図に例示
した原稿読取装置22のように、フレームである装置本
体26の上部両側27に一枚の原稿保持シート21が取
付けられており、この原稿保持シート21が平板状のプ
レート28.29が両側から押圧されることで読取開口
30と原稿支持面31.32が形成されている。
Next, a second embodiment of the present invention will be described based on FIG. 5. In the document reading device 25 of this embodiment, like the document reading device 22 illustrated in FIG. A reading opening 30 and a document support surface 31.32 are formed by pressing flat plates 28 and 29 of the holding sheet 21 from both sides.

このような構成において、この原稿読取装置25は前述
の原稿読取装置7.22等と同様に機能する。なお、こ
の原稿読取装置25では、剛性が高いプレート28.2
9で原稿19を支持することになるので、例えば、分厚
い書物の見開き頁などでも正確に読取ることができる。
In this configuration, the document reading device 25 functions similarly to the document reading device 7, 22, etc. described above. Note that this document reading device 25 uses a highly rigid plate 28.2.
Since the document 19 is supported by the document 19, even a double-page spread of a thick book, for example, can be read accurately.

発明の効果 本発明は上述のように、主走査方向に長い読取開口と読
取開口の副走査方向両側に位置する原稿支持面とを備え
た原稿保持部材を設け、この原稿保持部材の読取開口に
下方から対向配置されたイメージセンサを設け、原稿支
持面に載置された原稿に対してイメージセンサと読取開
口とを一体的に副走査移動させる副走査手段を設けたこ
とにより、イメージセンサはコンタクトガラスなどを隔
てることなく読取開口から原稿面を直接読取ることがで
き、かつ、コンタクトガラスの反射光が存しないためイ
メージセンサの光源を原稿面に近接させることが容易な
ので、原稿面を直射光で良好に照明することができるの
で、画像の読取性能が高い原稿読取装置が得られ、さら
に、縁部がフレームに固定されて読取開口から装置内部
に巻回されたシート状の原稿保持部材を設けることで、
原稿支持面が移動することなく読取開口は副走査移動す
るので、簡易な構造で原稿を読取走査することができる
等の効果を有するものである。
Effects of the Invention As described above, the present invention provides a document holding member having a reading aperture that is long in the main scanning direction and document supporting surfaces located on both sides of the reading aperture in the subscanning direction. By providing image sensors that are arranged facing each other from below and sub-scanning means that integrally moves the image sensor and reading aperture in sub-scanning relative to the document placed on the document support surface, the image sensor can be used as a contact. The document surface can be read directly from the reading aperture without using glass or other objects, and since there is no reflected light from the contact glass, it is easy to place the light source of the image sensor close to the document surface. Since it is possible to provide good illumination, a document reading device with high image reading performance can be obtained.Furthermore, a sheet-like document holding member whose edge is fixed to a frame and is wound inside the device from a reading opening is provided. By that,
Since the reading aperture moves in the sub-scanning direction without moving the document support surface, it is possible to read and scan the document with a simple structure.

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

第1図は本発明の第一の実施例を示す斜視図、第2図は
縦断側面図、第3図は第一の変形例を示す縦断側面図、
第4図は第二の変形例を示す斜視図、第5図は第二の実
施例を示す縦断側面図、第6図は従来例を示す縦断側面
図である。 3・・・イメージセンサ、7,22.25・・・原稿読
取装置、8,26・・・フレーム、11,23,30・
・・読取開口、12,13,21・・・原稿保持部材、
16.17,31,32・・・原稿支持面、19・・・
原稿
FIG. 1 is a perspective view showing a first embodiment of the present invention, FIG. 2 is a longitudinal side view, and FIG. 3 is a longitudinal side view showing a first modification.
FIG. 4 is a perspective view showing a second modification, FIG. 5 is a longitudinal sectional side view showing the second embodiment, and FIG. 6 is a longitudinal sectional side view showing a conventional example. 3... Image sensor, 7, 22. 25... Original reading device, 8, 26... Frame, 11, 23, 30...
...reading aperture, 12, 13, 21... document holding member,
16.17,31,32... Original support surface, 19...
manuscript

Claims (1)

【特許請求の範囲】 1、主走査方向に長い読取開口と前記読取開口の副走査
方向両側に位置する原稿支持面とを備えた原稿保持部材
を設け、この原稿保持部材の読取開口に下方から対向配
置されたイメージセンサを設け、前記原稿支持面に載置
された原稿に対して前記イメージセンサと前記読取開口
とを一体的に副走査移動させる副走査手段を設けたこと
を特徴とする原稿読取装置。 2、縁部がフレームに固定されて読取開口から装置内部
に巻回されたシート状の原稿保持部材を設けたことを特
徴とする請求項1記載の原稿読取装置。
[Claims] 1. A document holding member having a reading aperture long in the main scanning direction and document support surfaces located on both sides of the reading aperture in the subscanning direction is provided, and a document holding member is provided with a reading opening of the document holding member from below. An original document characterized in that image sensors arranged opposite to each other are provided, and sub-scanning means is provided for integrally moving the image sensor and the reading aperture in a sub-scanning direction with respect to the original document placed on the document support surface. reading device. 2. The document reading device according to claim 1, further comprising a sheet-like document holding member whose edge is fixed to the frame and wound into the device from the reading opening.
JP1133059A 1989-05-26 1989-05-26 Original reader Pending JPH02311076A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1133059A JPH02311076A (en) 1989-05-26 1989-05-26 Original reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1133059A JPH02311076A (en) 1989-05-26 1989-05-26 Original reader

Publications (1)

Publication Number Publication Date
JPH02311076A true JPH02311076A (en) 1990-12-26

Family

ID=15095866

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1133059A Pending JPH02311076A (en) 1989-05-26 1989-05-26 Original reader

Country Status (1)

Country Link
JP (1) JPH02311076A (en)

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