JPH039661A - Reader - Google Patents
ReaderInfo
- Publication number
- JPH039661A JPH039661A JP14373389A JP14373389A JPH039661A JP H039661 A JPH039661 A JP H039661A JP 14373389 A JP14373389 A JP 14373389A JP 14373389 A JP14373389 A JP 14373389A JP H039661 A JPH039661 A JP H039661A
- Authority
- JP
- Japan
- Prior art keywords
- white reference
- plate
- document
- original
- adhesive
- 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.)
- Granted
Links
- 239000000853 adhesive Substances 0.000 claims abstract description 42
- 230000001070 adhesive effect Effects 0.000 claims abstract description 41
- 239000002390 adhesive tape Substances 0.000 abstract description 15
- 239000000428 dust Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 6
- 230000003287 optical effect Effects 0.000 description 11
- 230000005856 abnormality Effects 0.000 description 3
- 239000005357 flat glass Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
Landscapes
- Holders For Sensitive Materials And Originals (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、イメージスキャナ、複写機等に用いられる読
取装置に関し、特に透明な原稿台上に原稿を載置し、そ
の原稿台の下方に配置した読取手段によって原稿を光学
的に読み取る形式の読取装置に関する。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a reading device used in an image scanner, a copying machine, etc., and in particular to a reading device in which a document is placed on a transparent document table and placed below the document table. The present invention relates to a reading device that optically reads a document using a reading means.
従来の技術
従来この種の装置は、第６図に示すように原稿１を載せ
るためのガラス等からなる透明な原稿台２と、原稿台２
の下方に配置され、原稿台２に沿って矢印で示す副走査
方向に走行して原稿読取を行う光学ユニット３を備えて
おり、その光学ユニット３は、光源４ど、反射ミラー５
と、集光レンズ６と、読取素子７と、ドライブ回路８等
を備えている。また、原稿台２上の読取開始位置近傍に
は、原稿の位置決めをするだめの原稿セント銘板９が配
置されている。この原稿セット銘板９は通常装置の筐体
に固定されるため、原稿台２との間に隙間が生じており
、この隙間に原稿が入らないようにするため、ゴム板Ｉ
Ｏが接着されている。更に、原稿台２の読取開始位置近
傍の下面には白基準１１が塗装や印刷で形成されている
。2. Description of the Related Art Conventionally, as shown in FIG. 6, this type of apparatus has a transparent document table 2 made of glass or the like on which a document 1 is placed, and a document table 2.
The optical unit 3 is disposed below the document platen 2 and reads the document by traveling in the sub-scanning direction indicated by the arrow.
, a condensing lens 6, a reading element 7, a drive circuit 8, and the like. Further, near the reading start position on the document table 2, a document cent name plate 9 for positioning the document is arranged. Since this original set nameplate 9 is normally fixed to the housing of the device, there is a gap between it and the original table 2. In order to prevent the original from entering this gap, a rubber plate I
O is glued. Furthermore, a white reference 11 is formed by painting or printing on the lower surface of the document table 2 near the reading start position.
また′、白基準１１を原稿台２の下面に形成する代わり
に、第７図に示すように、原稿セット銘板９の裏面に白
板ガラス１２を接着して設け、白基準としたものもある
。Furthermore, instead of forming the white reference 11 on the lower surface of the document table 2, as shown in FIG. 7, a white plate glass 12 is attached to the back surface of the document set name plate 9 and used as the white reference.
これらの装置において、原稿読取を行うには、まず、光
学ユニット３が図示のように白基準の下方に位置した状
態で、光源４が白基準を照射し、その反射光は反射ミラ
ー５により光路変更され、集光レンズ６により読取素子
７上に結像され、光電変換された信号がドライブ回路８
にて取り出され、各処理される。その後、光学ユニット
３が矢印で示す副走査方向に走行し、白基準の場合と同
様に原稿１が光源４で照射され、その反射光が集光レン
ズ６によって読取素子７上に結像され、ドライブ回路８
で電気信号が取り出され、その信号が白基準を読み取っ
た際の信号に応じて補正され、読取信号が得られる。In order to read a document in these devices, first, with the optical unit 3 positioned below the white reference as shown in the figure, the light source 4 illuminates the white reference, and the reflected light is directed to the optical path by the reflective mirror 5. The image is focused on the reading element 7 by the condensing lens 6, and the photoelectrically converted signal is sent to the drive circuit 8.
It is taken out and processed. Thereafter, the optical unit 3 moves in the sub-scanning direction indicated by the arrow, and the original 1 is irradiated with the light source 4 as in the case of the white reference, and the reflected light is imaged on the reading element 7 by the condensing lens 6. Drive circuit 8
An electrical signal is extracted at , and the signal is corrected according to the signal when reading the white reference to obtain a read signal.
発明が解決しようとする課題
しかし、第６図に示す構成では、白基準が露出している
ため、紙粉等のゴミが付着しやすく、画像異常を起こす
ことがあるという問題があった。Problems to be Solved by the Invention However, in the configuration shown in FIG. 6, since the white reference is exposed, there is a problem in that dust such as paper dust is likely to adhere to it, which may cause image abnormalities.
また、白基準と原稿セット銘板とを別個に設けるため、
コスト的に不利となるという問題もあった。Also, since the white reference and document set nameplate are provided separately,
There was also the problem of being disadvantageous in terms of cost.
また、第７図に示す構成でも、白基準となる白板ガラス
１２と原稿台２との間にすきまがあるだめ、このすきま
に紙粉等のゴミが入り、やはり画像異常を起こすことが
あり、更に、原稿セント銘板と白板ガラスとが別部品で
あるため、部品が多くなシコスト的に不利となるという
問題があった。Furthermore, even in the configuration shown in FIG. 7, there is a gap between the white plate glass 12, which serves as a white reference, and the document table 2, so dust such as paper powder may enter this gap, causing image abnormalities. Furthermore, since the document center name plate and the white plate glass are separate parts, there is a problem in that the number of parts is large, which is disadvantageous in terms of cost.
本発明は、上述の問題点に鑑みて為されたもので、ゴミ
付着を防止でき、且つコストダウンを図ることのできる
白基準を備えた読取装置を提供することを目的とする。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a reading device equipped with a white reference that can prevent dust from adhering to the reading device and reduce costs.
課題を解決するだめの手段
本発明は上述の問題点を解決するため、原稿台表面に配
置する原稿セット銘板を白基準として使用しうる材料で
構成することによって白基準板を兼用させ、この原稿セ
ント銘板兼白基準板の原稿台に接触する側の面に、中央
の白基準面と、その白基準面を取り囲む溝と、その溝の
外側の接着面を形成し、この接着面を前記原稿台に、両
面粘着テープ或いは接着剤によって接着することにより
原稿セット銘板兼白基準板を原稿台に固定するという構
成を備えたものである。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention consists of a document set name plate placed on the surface of the document table made of a material that can be used as a white reference plate, so that it also serves as a white reference plate. A center white reference surface, a groove surrounding the white reference surface, and an adhesive surface outside the groove are formed on the surface of the cent name plate and white reference plate that contacts the document table, and this adhesive surface is used to attach the document The document set name plate and white reference plate is fixed to the document table by adhering it to the document table using double-sided adhesive tape or adhesive.
作用
本発明は上述の構成によって、白基準面を取り囲んだ接
着面が原稿台に接着されているので、白基準面が確実に
密閉され、ごみ等の付着がなく、信頼性のある白基準を
提供することが可能となる。According to the above-described structure, the adhesive surface surrounding the white reference surface is adhered to the document table, so that the white reference surface is reliably sealed, free of dust, etc., and a reliable white reference can be obtained. It becomes possible to provide
また、白基準面と接着面との間の溝は、接着面に接着剤
を塗布したり両面粘着テープを接着する際の境界の役割
を果たし、これらの動作が容易となり、しかも接着に際
しては接着剤等が白基準面内に入って白基準面を汚すこ
とを防止する。更に、単一部材である原稿セント銘板が
白基準板を兼ねるので、部品点数を削減でき、コスト的
に大幅な削減が可能となる。In addition, the groove between the white reference surface and the adhesive surface acts as a boundary when applying adhesive to the adhesive surface or attaching double-sided adhesive tape, making these operations easier. To prevent agents, etc. from entering the white reference surface and staining the white reference surface. Furthermore, since the document cent name plate, which is a single member, also serves as a white reference plate, the number of parts can be reduced, and costs can be significantly reduced.
実施例
第１図は本発明の一実施例による読取装置の概略構成を
示すもので、一部を破断して示す概略斜視図、第２図は
その要部の概略断面図である。なお、第１図、第２図に
おいて、第６図、第７図に示す従来例と同一部材には同
一符号を付けて示している。第１図、第２図において、
ｌは読み取るべき原稿、２はその原稿１を載せるための
透明なガラス等で構成された原稿台、３は原稿台３の原
稿側とは反対側に配置された読取手段を構成する光学ユ
ニットであシ、光源４、反射ミラー５、集光し／ズ６、
読取素子７、ドライブ回路８等を備えている。この光学
ユニット３は図示しない駆動装置によって矢印Ａで示す
副走査方向に移動し、原稿を読み取ることが可能である
。なお、読取手段はこの構成の光学ユニット３に限らず
、適宜変更可能であり、例えば、集光レンズと読取素子
等を定位置に配置し、光源、反射ミラー等のみを移動す
る形式としてもよく、更には、光学ユニット３を定位置
に設けておき、原稿台を移動させる構成としてもよい。Embodiment FIG. 1 shows a schematic structure of a reading device according to an embodiment of the present invention, and FIG. 2 is a partially cutaway schematic perspective view, and FIG. 2 is a schematic sectional view of the main part thereof. In FIGS. 1 and 2, the same members as those in the conventional example shown in FIGS. 6 and 7 are designated by the same reference numerals. In Figures 1 and 2,
1 is an original to be read, 2 is an original plate made of transparent glass or the like on which the original 1 is placed, and 3 is an optical unit that constitutes a reading means arranged on the opposite side of the original plate 3 from the original side. Reeds, light source 4, reflective mirror 5, light condenser/zu 6,
It includes a reading element 7, a drive circuit 8, and the like. This optical unit 3 can be moved in the sub-scanning direction indicated by arrow A by a drive device (not shown) and can read the original. Note that the reading means is not limited to the optical unit 3 having this configuration, and can be modified as appropriate. For example, it may be of a type in which a condenser lens, a reading element, etc. are placed in a fixed position, and only the light source, reflection mirror, etc. are moved. Furthermore, a configuration may be adopted in which the optical unit 3 is provided at a fixed position and the document table is moved.
１４は、原稿台２上面の原稿読取開始位置近傍に取付け
られた原稿セット銘板兼白基準板、１５は上カバーであ
る。Reference numeral 14 designates a document set name plate and white reference plate attached to the upper surface of the document table 2 in the vicinity of the document reading start position, and 15 designates an upper cover.
原稿セント銘板兼白基準板１４は、白色の薄い板状のも
ので、その上面には原稿サイズ等を示す印刷１６が施さ
れている。また、その裏面（原稿台２に面する側）には
、第３図に示すように、中央の矩形状の白基準面１７と
、その白基準面１７を取シ囲む溝１８と、その溝１８の
外側の接着面１９ａ、１９ｂ。The original cent name plate and white reference plate 14 is a thin white plate, and has printing 16 on its upper surface indicating the original size and the like. Further, on the back surface (the side facing the document table 2), as shown in FIG. 18 outer adhesive surfaces 19a, 19b.
１９ｃ、１９ｄ等を備えている。ここで、接着面１９ａ
は、原稿セット側である。第２図において、原稿セット
銘板兼白基準板１４は、原稿セット側の接着面１９ａを
両面粘着テープ加で、他の接着面１９ｂ〜１９ｄを接着
剤２１によって原稿台２上面に固定されている。19c, 19d, etc. Here, the adhesive surface 19a
is on the original set side. In FIG. 2, the document set name plate and white reference plate 14 is fixed to the upper surface of the document table 2 by applying double-sided adhesive tape to the adhesive surface 19a on the document set side and by adhesive 21 to the other adhesive surfaces 19b to 19d. .
原稿セクト銘板兼白基準板１４を原稿台２上面に取付け
るには、予め原稿台２を上カバー１５に固定しておき、
第４図に示すように、接着面１９ａに両面粘着テープ加
を取付け、接着面１９ｂ〜１９ｄに接着剤２１を施した
原稿セット銘板兼白基準板１４をこれらの両面粘着テー
プ加、接着剤２１によって原稿台２に接着すればよい。In order to attach the original sector name plate and white reference plate 14 to the upper surface of the original platen 2, the original platen 2 is fixed to the upper cover 15 in advance.
As shown in FIG. 4, the document set name plate and white reference plate 14 is attached with double-sided adhesive tape on the adhesive surface 19a and adhesive 21 is applied on the adhesive surfaces 19b to 19d. It is sufficient to adhere it to the document table 2 using the following method.
ここで、溝１８は、接着面１９ａ−１９ｄに両面粘着テ
ープ加や接着剤２１を施す際の境界の役割を果たし、ま
た、接着時に、接着剤が押されて周囲に拡散した際に白
基準面１７に侵入することを防止する。かくして、白基
準面１７が汚されることはない。なお、接着剤２１は接
着面１９１）−１９ｄの外側に拡散することがあるが、
拡散した接着剤は原稿セント銘板兼白基準板１４と上カ
バー １．５との隙間に入り両者を接着させるのでかえ
って好ましい。一方、原稿セット側の接着面１９ａは両
面粘着テープ加で原稿台２に接着しているため、接着剤
が原稿台上や原稿突き当て面上に拡散することはなく、
美観が良い。Here, the groove 18 serves as a boundary when double-sided adhesive tape is applied or the adhesive 21 is applied to the adhesive surfaces 19a to 19d, and also serves as a white reference when the adhesive is pushed and spread around the adhesive surface 19a to 19d. Intrusion into surface 17 is prevented. In this way, the white reference surface 17 is not contaminated. Note that the adhesive 21 may spread to the outside of the adhesive surface 191)-19d,
The diffused adhesive enters the gap between the document center name plate/white reference plate 14 and the upper cover 1.5 and adheres them together, which is preferable. On the other hand, since the adhesive surface 19a on the document set side is adhered to the document table 2 using double-sided adhesive tape, the adhesive will not spread onto the document table or the document abutting surface.
Good aesthetics.
なお、原稿セント銘板兼白基準板１４を原稿台２に接着
するだめの両面粘着テープや接着剤の配置は適宜変更可
能であり、更には第５図に示すように全接着面１９ａ〜
１９ｄに両面粘着テープ加を配置したり、全接着面１９
ａ ＝ １９ ｄに接着剤を配置してもよい。しかし
ながら、原稿セント側の接着面１９ａには、両面粘着テ
ープを配置することが、美観上好ましい。It should be noted that the arrangement of the double-sided adhesive tape or adhesive used to adhere the document cent name plate/white reference plate 14 to the document table 2 can be changed as appropriate, and furthermore, as shown in FIG.
Place double-sided adhesive tape on 19d, or attach double-sided adhesive tape to all adhesive surfaces 19
An adhesive may be placed at a = 19 d. However, from the viewpoint of aesthetics, it is preferable to arrange double-sided adhesive tape on the adhesive surface 19a on the document center side.
原稿セント銘板兼白基準板１４を形成する材料には、外
観的見地より成形可能でサイズ等の印刷ができる必要が
あり、白基準としての機能的見地より白色度が高く且つ
経時変化がないことが必要である。これらの条件よシ、
原稿セット銘板兼白基準板１４の材料としては、耐燃耐
候性樹脂であるＡＣ８樹脂（例えば、昭和電工（株）製
のＡＣ８樹脂）やセラミックが好ましい。これらの材料
は、成形金型の表面を磨くことにより、成形品を光沢の
ある美しい表面に仕上げることが可能であり、また、白
色度も一般的に用いられている画像電子学会のテストチ
ャートの白部分と同程度である。The material forming the manuscript cent name plate and white reference plate 14 must be moldable and capable of printing sizes, etc. from an appearance standpoint, and from a functional standpoint as a white reference, it must have a high degree of whiteness and not change over time. is necessary. These conditions,
The material for the document set name plate/white reference plate 14 is preferably AC8 resin, which is a flame-resistant and weather-resistant resin (for example, AC8 resin manufactured by Showa Denko K.K.) or ceramic. By polishing the surface of the mold, these materials can give the molded product a glossy and beautiful surface, and the whiteness also meets the commonly used test chart of the Institute of Image Electronics Engineers of Japan. It is about the same as the white part.
耐候性も数百時間使用しても変化なく問題がない。Weather resistance remains unchanged even after hundreds of hours of use.
以上のように構成された読取装置について、以下にその
動作を説明する。The operation of the reading device configured as described above will be described below.
原稿台２上に原稿をセクトする際には、原稿セクト銘板
兼白基準板１４に原稿１の端部を突き当てることにより
、原稿位置決めを行うことができる。When selecting a document onto the document table 2, the document can be positioned by abutting the edge of the document 1 against the document sect name plate/white reference plate 14.
原稿読取は、従来と同様に行われる。すなわち、原稿読
取開始に際し、まず、光学ユニット３で白基準面１７を
読み取って、補正信号を求め、次いで光学ユニット３が
副走査方向に走行して原稿１を読み取る。ここで、白基
準面１７は、その周囲を両面粘着テープ加、接着剤２１
等で原稿台２に接着することＫより、完全に密閉されて
いるので、コ゛ミ等が白基準面１７に付着することがな
く、画像異常を生じることがない。Original reading is performed in the same manner as before. That is, when starting to read the original, the optical unit 3 first reads the white reference plane 17 to obtain a correction signal, and then the optical unit 3 moves in the sub-scanning direction to read the original 1. Here, the white reference surface 17 is covered with double-sided adhesive tape and adhesive 21.
Since it is completely sealed by adhering it to the original platen 2 with a screw or the like, dust and the like will not adhere to the white reference surface 17 and no image abnormality will occur.
発明の効果
以上の説明から明らかなように、本発明は原稿セクト銘
板自体を白基準として使用しうる材料で構成することに
よって白基準板を兼用させ、この原稿セント銘板兼白基
準板の原稿台に接触する側の面に、中央の白基準面と、
その白基準面を取り囲む溝と、その溝の外側の接着面を
形成し、この接着面を前記原稿台に、両面粘着テープ或
いは接着剤によって接着するように構成したものである
ので、部品点数を削減してコストダウンを図ることがで
き、しかも白基準面を確実に密閉することによってごみ
等の付着がなく、信頼性の高い白基準を確保でき画像の
保証が可能であるという効果を有している。Effects of the Invention As is clear from the above description, the present invention allows the manuscript section nameplate itself to be made of a material that can be used as a white reference so that it can also be used as a white reference plate. on the side that comes into contact with the center white reference surface,
A groove surrounding the white reference surface and an adhesive surface outside the groove are formed, and this adhesive surface is adhered to the document table using double-sided adhesive tape or adhesive, so the number of parts can be reduced. In addition, by reliably sealing the white reference surface, there is no adhesion of dust, etc., ensuring a highly reliable white reference and guaranteeing the image quality. ing.
第１図は本発明の一実施例による読取装置の概略構成を
示すもので、一部を破断して示す概略斜視図、第２図は
その要部の概略断面図、第３図は上記実施例に使用する
原稿セクト銘板兼白基準板の裏面図、第４図はその原稿
セクト銘板兼白基準板に両面粘着テープ及び接着剤を施
した状態を示す裏面図、第５図は他の実施例における第
４図と同様な裏面図、第６図、第７図は従来の読取装置
の要部の概略断面図である。
１・・・原稿、２・・原稿台、３・・・光学ユニット、
４・・・光源、５・・・反射ミラー ６・・・集光レン
ズ、７・・・読取素子、８・・・ドライブ回路、１４・
・・原稿セット銘板兼白基準板、１５・・・上カバー、
１６・・・印刷、１７・・・白基準面、１８ ＝−溝、
１９ ａ 、 １９ ｂ 、 １９ ｃ 、 １９ ｄ
−接着面、加・・両面粘着テープ、２１・・・接着剤
。FIG. 1 shows a schematic configuration of a reading device according to an embodiment of the present invention, and is a partially cutaway schematic perspective view, FIG. 2 is a schematic cross-sectional view of the main part, and FIG. Figure 4 is a back view of the manuscript sect name plate and white reference plate used in the example, and Figure 4 is a rear view showing the manuscript sect name plate and white reference plate with double-sided adhesive tape and adhesive applied. Figure 5 is a diagram showing another example. A back view similar to FIG. 4 in the example, and FIGS. 6 and 7 are schematic cross-sectional views of the main parts of a conventional reading device. 1... Original, 2... Original table, 3... Optical unit,
4... Light source, 5... Reflection mirror 6... Condensing lens, 7... Reading element, 8... Drive circuit, 14...
・・Document set name plate and white reference plate, 15 ・・Top cover,
16...Printing, 17...White reference surface, 18=-groove,
19a, 19b, 19c, 19d
-Adhesive surface, addition...double-sided adhesive tape, 21...adhesive.
Claims (1)
原稿台の原稿載置側とは反対側に位置し、原稿台上の原
稿を読み取る読取手段と、前記原稿台の原稿載置側の表
面に配置された原稿セット銘板兼白基準板とを有し、こ
の原稿セット銘板兼白基準板は、原稿台側の面に、中央
の白基準面を取り囲む溝と、その溝の外側の接着面を備
えており、この接着面を前記原稿台に接着することによ
り取付けられていることを特徴とする読取装置。A transparent document table for placing a document to be read; a reading means located on the opposite side of the document table from the document placement side for reading the document on the document table; and a surface of the document table on the document placement side. The document set name plate and white reference plate is located on the side of the document table, and has a groove surrounding the white reference surface in the center and an adhesive surface on the outside of the groove. 1. A reading device comprising: a reading device, the reading device being attached by adhering the adhesive surface to the document table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14373389A JPH039661A (en) | 1989-06-06 | 1989-06-06 | Reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14373389A JPH039661A (en) | 1989-06-06 | 1989-06-06 | Reader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH039661A true JPH039661A (en) | 1991-01-17 |
| JPH0588030B2 JPH0588030B2 (en) | 1993-12-20 |
Family
ID=15345746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14373389A Granted JPH039661A (en) | 1989-06-06 | 1989-06-06 | Reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH039661A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4239594A1 (en) * | 1991-11-25 | 1993-05-27 | Samsung Electronics Co Ltd | |
| JPH0915756A (en) * | 1995-06-27 | 1997-01-17 | Ricoh Co Ltd | Original platen |
| JP2001051364A (en) * | 1999-08-06 | 2001-02-23 | Ricoh Co Ltd | Image reader |
| US8760730B2 (en) | 2012-03-29 | 2014-06-24 | Canon Kabushiki Kaisha | Image reading apparatus for reading image of original document |
| JP2018125752A (en) * | 2017-02-02 | 2018-08-09 | キヤノン株式会社 | Image reading device and image formation device |
-
1989
- 1989-06-06 JP JP14373389A patent/JPH039661A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4239594A1 (en) * | 1991-11-25 | 1993-05-27 | Samsung Electronics Co Ltd | |
| JPH0915756A (en) * | 1995-06-27 | 1997-01-17 | Ricoh Co Ltd | Original platen |
| JP2001051364A (en) * | 1999-08-06 | 2001-02-23 | Ricoh Co Ltd | Image reader |
| US8760730B2 (en) | 2012-03-29 | 2014-06-24 | Canon Kabushiki Kaisha | Image reading apparatus for reading image of original document |
| JP2018125752A (en) * | 2017-02-02 | 2018-08-09 | キヤノン株式会社 | Image reading device and image formation device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0588030B2 (en) | 1993-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |