JPS59100464A - Original size detector - Google Patents
Original size detectorInfo
- Publication number
- JPS59100464A JPS59100464A JP57210041A JP21004182A JPS59100464A JP S59100464 A JPS59100464 A JP S59100464A JP 57210041 A JP57210041 A JP 57210041A JP 21004182 A JP21004182 A JP 21004182A JP S59100464 A JPS59100464 A JP S59100464A
- Authority
- JP
- Japan
- Prior art keywords
- original
- cover
- document
- size
- transparent 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 29
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/60—Apparatus which relate to the handling of originals
- G03G15/607—Apparatus which relate to the handling of originals for detecting size, presence or position of original
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00172—Apparatus for electrophotographic processes relative to the original handling
- G03G2215/00177—Apparatus for electrophotographic processes relative to the original handling for scanning
- G03G2215/00181—Apparatus for electrophotographic processes relative to the original handling for scanning concerning the original's state of motion
- G03G2215/00185—Apparatus for electrophotographic processes relative to the original handling for scanning concerning the original's state of motion original at rest
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、例えば電子写真複写装置等に用いられる原稿
サイズ検出装置直に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a document size detection device used, for example, in an electrophotographic copying machine.
従来例の構成とその問題点
従来、この往復算機において原稿サイズを検出して原稿
台るるいは光学系のヌキャン距離を灰化きせる手段とし
ては、原稿サイズを視認して給紙カセットを選び、この
給紙カセットに設けた磁石と給紙カセット装着側本体に
設けられたり＝ドヌイッチとによって前記スキャン移動
を変化させる構成や、原稿雀載置する透明部材をはさん
で上下に発光素子と受光素子とを設け、コピーの前に予
め原稿サイズを検知するようにした構成が用いられてい
る。しかしながらＩｆｉＪ者は原稿のサイズを目で確認
する原始的な操作であわ、往々にして原稿サイズとは異
女る給紙カセットのコピー紙を給紙ヌタートさせてしま
い、コビーミヌを生ずる頻度が高かった。また、後者の
場合は、原稿を載置する透明部材の下側、すなわち装置
本体の光学系部分に受光素子あるいは発光素子を配設す
る必要があυ、特に光源やミラー等がスキャン移動する
タイプの複写機においては、さらに検知素子の配設スペ
ースを必要とし、装置の小型化全阻害する原因と寿−て
℃た、。 、、、：
本発明ば上記従来・の欠”□点を解消する虻ので、被写
Ｓ等の装置本体の小型化及び構成の簡略化を図ることの
できる原稿サイズ検出装置を提供することを目的とする
。Conventional structure and its problems Conventionally, in this reciprocating calculator, the method of detecting the document size and reducing the document table or optical system's scanning distance was to visually check the document size and select the paper feed cassette. , a configuration in which the scanning movement is changed by a magnet provided on the paper feed cassette and a magnet provided on the main body on the side where the paper feed cassette is attached, and light emitting elements and light receiving elements placed above and below the transparent member on which the document is placed. A configuration is used in which a device is provided to detect the document size in advance before copying. However, IfiJ users have trouble with the primitive operation of visually checking the size of the original, and often end up feeding the copy paper in the paper feed cassette that is different from the original size, resulting in a high frequency of paper failure. . In the latter case, it is necessary to install a light-receiving element or a light-emitting element under the transparent member on which the original is placed, that is, in the optical system part of the main body of the apparatus, especially in types where the light source and mirror move during scanning. In the case of a copying machine, additional space is required for the detection element, which hinders the miniaturization of the device and its longevity. ,,,: The present invention solves the above-mentioned shortcomings of the conventional art, and therefore, it is an object of the present invention to provide a document size detection device that can reduce the size of the main body of the device such as the subject S and simplify the configuration. purpose.
発明の構成
上記目的を達するため、本発明の原稿サイズ検出装置は
、各種サイズの原稿を載置する透明部材と、この透明蔀
材手の原オｉ押□圧規制する原稿カバーと、発光素子お
よび受光素子からなりｍ１記原狼カバーのν中面、（ｉ
ｌｊＪに取付ｉ＋４れた検知素子とを佑え、前記発光素
′皐から出射ｊれ前記原稿より反射された反射光を前記
受光素子で受光することによって、ｍ１記透明部材上に
載１１餐略れた原稿サイズを検出する構成としたもので
ろる。Structure of the Invention In order to achieve the above object, the document size detection device of the present invention comprises: a transparent member on which documents of various sizes are placed; a document cover for regulating the pressure of the original material of the transparent glossy material; and a light emitting element. and the light-receiving element, the ν middle surface of the m1 original cover, (i
A detection element attached to ljJ is installed on the transparent member m1 by receiving the reflected light emitted from the light emitting element and reflected from the document by the light receiving element. It may be configured to detect the size of the original document.
実施例の説明
以下、本発明の一実施例について、図面に基づいて説明
する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
第」図は原稿サイズ検出装置の概略断面図で、・ 、（
１ンは担写材本体の上面に設けられたガラヌ等の透明部
材、（２）は透明部材（１）の上に載置された原稿で□
あふ。（３）は原稿カバーで、カバ一本体（４）と、
その内面に貼付されたグラスチックやゴムなどの軟質な
ラバー（５）とから構成されている。（６ａ）〜（６ｄ
）は原稿カバー（３）の内面側に取付けられた、原稿（
２）の有無を検知する検知素子である。この検知素子（
６ａ）〜（６ｄ）は、第２図に示すように発光素子（７
）と受光素子（８）とからなっておシ、原稿カバー（３
）で透明部材（］）上の原稿（２）を抑圧規制したとき
に、発光素子（７）からの照射光が壓稿（２）によって
反射され、受光素子（８）で受光するように構成されて
いる。従って原稿（２）が不在のときは、発光素：！（
７）からの照射光は透明部４１’ （ＩＪを通過してし
まい、受光素子（８）に受光されないため検知しないこ
とになる。このような検知素子（６ａ）〜（６ｄ）を、
各種の原稿サイズに合せて原稿カバー（３）に配設して
おけば、原稿（２）の各サイズを検出することができ、
この検出サイズに応じて給紙カセットヲ自動的に原稿サ
イズに合うよう選択するようにしておけば、コピー操作
が極めて容易になる。Figure 1 is a schematic cross-sectional view of the document size detection device.
1 is a transparent member such as a galanu provided on the top surface of the carrier material body, and (2) is the original placed on the transparent member (1).
Ahhh. (3) is the document cover, which includes the cover body (4),
It consists of a soft rubber (5) such as glass or rubber attached to its inner surface. (6a) ~ (6d
) is attached to the inside of the document cover (3).
2) is a sensing element that detects the presence or absence of. This sensing element (
6a) to (6d) are light emitting elements (7) as shown in FIG.
) and a light-receiving element (8), and a document cover (3).
) is configured so that when the document (2) on the transparent member (]) is suppressed and regulated, the irradiated light from the light emitting element (7) is reflected by the document (2) and is received by the light receiving element (8). has been done. Therefore, when manuscript (2) is absent, luminescent element:! (
The irradiated light from 7) passes through the transparent part 41' (IJ) and is not received by the light receiving element (8), so it is not detected.
By placing them on the document cover (3) according to various document sizes, each size of the document (2) can be detected.
If the paper feed cassette is automatically selected in accordance with the detected size to match the document size, the copying operation becomes extremely easy.
第３図は検知素子（６ａ）〜（６ｄ）の配置の一例を示
す説明図で８って、透明部材（１）上に載置された原稿
の各種サイズの上側コーナーに位置するよう検知素子（
６ａ）〜（６ｄ）を原稿カバー（３）に配設しだもので
□□□る。つまりＡ４サイズの原稿（Ａ４）の上側コー
ナーに検知素子（６１））を、Ｂ５サイズの原稿（Ｂ５
）の上側コーナーには横方素子（６ａ）を、同様に、Ａ
３サイ、ズの原稿（Ａ３）には検知素子（６ｄ）、金、
Ｂ４サイズの原稿（Ｂ４）には検知素子（６Ｃ）をそれ
ぞ、れ配置ｊＥｆ Ｌでいる、なお（９）は原稿の位置
合せマークである。 。FIG. 3 is an explanatory diagram showing an example of the arrangement of the detection elements (6a) to (6d), and the detection elements 8 are positioned at the upper corners of various sizes of originals placed on the transparent member (1). (
6a) to (6d) are arranged on the document cover (3). In other words, the detection element (61)) is placed in the upper corner of an A4 size document (A4), and the detection element (61) is placed in the upper corner of an A4 size document (A4).
) in the upper corner of the lateral element (6a), similarly
3 size original (A3) has a detection element (6d), gold,
The B4 size document (B4) has the detection elements (6C) arranged in the following manner, and (9) is the alignment mark of the document. .
第４図−：他の配置例を示し、検知素子（６ａ）〜（６
ｄ）を原稿の各種サイズに対して路−列に配設したもの
である。Figure 4-: Shows another arrangement example, detecting elements (6a) to (6
d) are arranged in rows and columns for various sizes of originals.
これら第３図及び第４図に示す配設位遣による検出状態
を下記第１表に示す。なお○印は第３図、ｘ印は第４図
の場合をそれぞれ示す。Detection conditions according to the arrangement shown in FIGS. 3 and 4 are shown in Table 1 below. Note that the ○ mark indicates the case in FIG. 3, and the x mark indicates the case in FIG. 4, respectively.
−以 下 余 白 −
第 １ 表
上記第１表から明らかなように、第４図に示す配置イ苦
成であると検知素子ばＡ３原稿の場合、全検利、素子に
よる検知が必要となるが、第３図に示すような配肯構成
とすると、Ｂ４１７ｘ稿の場合は検知素子（６ｂ）の検
出が不要となり、Ａ３原稿の場合は検知素子（６ｄ）そ
のものが本成となり、原稿サイズの検出回路が簡単にな
る。- Below margin - Table 1 As is clear from Table 1 above, if the arrangement shown in Figure 4 is not suitable, in the case of an A3 document, full detection and detection by the element will be necessary. However, if the detection configuration is as shown in Fig. 3, the detection element (6b) becomes unnecessary for B417x documents, and the detection element (6d) itself becomes the main component for A3 documents, which reduces the size of the document. The detection circuit becomes simpler.
このように、原稿カバー（３）に検知素子（６ａ）〜（
６ｄ）を配設し、原稿（２）からの反射光を受光するこ
とによって原稿（２）のサイズを検出するようにしたの
で、検出素子（６ａ）〜（６ｄ）の発光素子（７）ある
いは受光素子（８）を復算機本体内に分散配置すること
なく原稿カバー（３）に配設するだけでよく、構成が簡
単となる。１だ、別途透明部材（］）の下面に反射板を
設ける必要もなくなる。さらに、原稿サイズの検出と共
に給紙カセットの選択を同期させて行なえば、予め原稿
サイズを検出して給紙カセットを合せなくても自動的に
切替るため、コピースピードの向上を図れる。なお、検
知素子（６ａ）〜（６ｄ）の配設構成を第３図に示すよ
うにＡ系列とＢ系列との２段配設にすると、Ａ３原稿の
如き最大原稿のサイズ検出に対して検知素子を減少させ
ることが出来る。In this way, the detection elements (6a) to (
6d) to detect the size of the original (2) by receiving the reflected light from the original (2), the light-emitting elements (7) or The light receiving element (8) need only be disposed on the document cover (3) without being dispersed within the calculator main body, which simplifies the configuration. 1. There is no need to separately provide a reflective plate on the bottom surface of the transparent member (). Furthermore, if the selection of the paper feed cassette is performed in synchronization with the detection of the document size, the copy speed can be improved because the document size can be detected in advance and the paper feed cassette can be automatically switched without having to match the paper feed cassette. In addition, if the arrangement configuration of the detection elements (6a) to (6d) is arranged in two stages of A series and B series as shown in Fig. 3, the detection elements (6a) to (6d) can be arranged in two stages, A series and B series, to detect the size of the largest original such as an A3 original. The number of elements can be reduced.
発明の詳細
な説明したように本発明によれば、発光素子と受光素子
とからなる検知素子を原稿カバーに設置したので、投写
機等の装置本体内に検知素子の発光素子あるいは受光素
子を設置する必要がなく、装置本体の小型化及び構成の
簡略化を図り得る。DETAILED DESCRIPTION OF THE INVENTION According to the present invention, as described in detail, a detection element consisting of a light emitting element and a light receiving element is installed on the document cover, so that the light emitting element or the light receiving element of the sensing element can be installed inside the main body of a device such as a projector. There is no need to do so, and the device main body can be downsized and the configuration can be simplified.
第１図は本発明の一実施、例における原稿サイズ検出装
置の概略断面図、第２図は同装置の要部の拡大断面図、
第３図は本発明の一実施例における検知素子の配置説明
図、第４図は別の実施例における検知素子の配置説明図
である。
（１）・・へ透明部材、（２）・・・原稿、（３）・・
・原稿カバー、（６ａ）〜（６ｄ）・・・検知素子、（
７）・・・発光素子、（８）・・・受光素子代理人
森 本 義 弘
第１図
第２図
勾
（
１
第３図FIG. 1 is a schematic cross-sectional view of a document size detection device according to an embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of the main parts of the device.
FIG. 3 is an explanatory diagram of the arrangement of sensing elements in one embodiment of the present invention, and FIG. 4 is an explanatory diagram of the arrangement of sensing elements in another embodiment. (1)...transparent member, (2)...manuscript, (3)...
・Document cover, (6a) to (6d)...detection element, (
7)... Light emitting element, (8)... Light receiving element agent
Yoshihiro Morimoto Figure 1 Figure 2 (1 Figure 3)
Claims (1)
部材上の原稿を抑圧規制する原稿カバーと、発光素子お
よび受光素子からなり前記原稿カバーの内面側に取付け
られた検知素子とを備え、前記発光素子から出射され前
記原稿より反射された反射光を前記受光素子で受光する
ことによって前記透明部材上に載置された原稿のサイズ
を検出す・る構成とした原稿サイズ検出装置。 ２、原稿カバー内面側の、原稿の各種サイズに対応する
位１直に、それぞれ検知素子を設けた特許請求の範囲第
１項記載のＷ、稿サイズ検出装置。[Scope of Claims] ], a transparent member for placing originals of various sizes, a document cover for suppressing and regulating the originals on the transparent member, and a light emitting element and a light receiving element, which are attached to the inner surface of the original cover. The size of the original placed on the transparent member is detected by receiving reflected light emitted from the light emitting element and reflected from the original by the light receiving element. Original size detection device. 2. A document size detection device according to claim 1, wherein detection elements are provided on the inner surface of the document cover at positions corresponding to various sizes of documents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57210041A JPS59100464A (en) | 1982-11-30 | 1982-11-30 | Original size detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57210041A JPS59100464A (en) | 1982-11-30 | 1982-11-30 | Original size detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59100464A true JPS59100464A (en) | 1984-06-09 |
Family
ID=16582823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57210041A Pending JPS59100464A (en) | 1982-11-30 | 1982-11-30 | Original size detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59100464A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS615244A (en) * | 1984-06-19 | 1986-01-11 | Fuji Xerox Co Ltd | Original size detector |
| JPS6135439A (en) * | 1984-07-27 | 1986-02-19 | Konishiroku Photo Ind Co Ltd | Electrostatic recording device |
| JPS6243634A (en) * | 1985-08-22 | 1987-02-25 | Fuji Xerox Co Ltd | Original size detecting device |
-
1982
- 1982-11-30 JP JP57210041A patent/JPS59100464A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS615244A (en) * | 1984-06-19 | 1986-01-11 | Fuji Xerox Co Ltd | Original size detector |
| JPH0468613B2 (en) * | 1984-06-19 | 1992-11-02 | Fuji Xerox Co Ltd | |
| JPS6135439A (en) * | 1984-07-27 | 1986-02-19 | Konishiroku Photo Ind Co Ltd | Electrostatic recording device |
| JPS6243634A (en) * | 1985-08-22 | 1987-02-25 | Fuji Xerox Co Ltd | Original size detecting device |
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