JPH0354503B2 - - Google Patents

Info

Publication number
JPH0354503B2
JPH0354503B2 JP57219032A JP21903282A JPH0354503B2 JP H0354503 B2 JPH0354503 B2 JP H0354503B2 JP 57219032 A JP57219032 A JP 57219032A JP 21903282 A JP21903282 A JP 21903282A JP H0354503 B2 JPH0354503 B2 JP H0354503B2
Authority
JP
Japan
Prior art keywords
document
reinforcing member
recording
optical system
shading correction
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.)
Expired - Lifetime
Application number
JP57219032A
Other languages
Japanese (ja)
Other versions
JPS59108451A (en
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 filed Critical
Priority to JP57219032A priority Critical patent/JPS59108451A/en
Publication of JPS59108451A publication Critical patent/JPS59108451A/en
Publication of JPH0354503B2 publication Critical patent/JPH0354503B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)

Description

【発明の詳細な説明】 技術分野 この発明はフアクシミリ装置に関する。[Detailed description of the invention] Technical field The present invention relates to a facsimile device.

背景技術 従来のフアクシミリ装置では、原稿を螢光灯等
の管状光源により照光し、その反射光を集光レン
ズを透過してイメージセンサに結像させている
が、管状光源で原稿を照光した場合は、原稿の中
央部の照度に比較し両端部付近の照度は低下して
いる。又、集光レンズの特性上、レンズ中央部を
透過する光量に比較してレンズ周辺部を透過する
光量は低下している。以上の理由によりイメージ
センサに到達する光量は、不均一となり読取性能
が大きく低下する。読取性能の低下を防止するた
め従来装置では、管状光源と原稿との間にシユー
デイング補正装置を設けて、イメージセンサに到
達する光量を制御している。しかしながら、従来
のシエーデイング補正装置では、補正装置が独立
して設けられているため、補正装置を設けた分だ
け部品点数が多くなり、また補正装置を位置決め
するための機構及び調整時間も必要になる不都合
がある。
Background Art In conventional facsimile devices, a document is illuminated with a tubular light source such as a fluorescent lamp, and the reflected light is transmitted through a condensing lens to form an image on an image sensor. In this case, the illuminance near both edges is lower than the illuminance at the center of the document. Furthermore, due to the characteristics of the condensing lens, the amount of light that passes through the periphery of the lens is lower than the amount of light that passes through the center of the lens. Due to the above reasons, the amount of light reaching the image sensor becomes non-uniform and the reading performance is greatly reduced. In order to prevent deterioration in reading performance, conventional apparatuses provide a shading correction device between the tubular light source and the document to control the amount of light reaching the image sensor. However, in conventional shading correction devices, since the correction device is provided independently, the number of parts increases due to the provision of the correction device, and a mechanism and adjustment time for positioning the correction device are also required. There is an inconvenience.

発明の開示 この発明は、原稿読取り部と該原稿読取り部に
光学系を介して結合する光電変換部との間に、フ
アクシミリ装置の筐体内の両側に設置された一対
の側板を結合する補強部材を配設し、前記補強部
材に光学系のシエーデイング補正窓を設けること
により、前記補強部材でシユーデイング補正装置
を兼用して、独立のシエーデイング補正装置と該
補正装置の位置決めのための調整時間等を省略す
るものである。
DISCLOSURE OF THE INVENTION The present invention provides a reinforcing member that connects a pair of side plates installed on both sides in a casing of a facsimile device between a document reading section and a photoelectric conversion section coupled to the document reading section via an optical system. By providing a shading correction window for the optical system in the reinforcing member, the reinforcing member can also be used as a shading correction device, and the adjustment time for positioning an independent shading correction device and the correction device can be reduced. It is omitted.

前記補強部材に、箱状の記録ロール紙の保持部
を一体成形し、前記保持部の側壁に前記シエーデ
イング補正窓を設ける場合には、専用の記録ロー
ル紙の保持部を省略すると共に、前記保持部を障
害とすることなく光軸を形成できる様にするもの
である。
In the case where the reinforcing member is integrally molded with a box-shaped recording roll paper holding part and the shading correction window is provided on the side wall of the holding part, the dedicated recording roll paper holding part is omitted, and the holding part is omitted. This makes it possible to form an optical axis without causing any obstructions.

前記補強部材に、光学系の集光レンズの保持部
を一体成形する場合には、共通の補強部材に、光
学系のシエーデイング補正窓と集光レンズの保持
部とが一体成形されることになり、シエーデイン
グ補正窓と集合レンズとの位置関係を調整作業を
不要として高精度で決定できるものである。
When the holding part of the condensing lens of the optical system is integrally molded on the reinforcing member, the shedding correction window of the optical system and the holding part of the condensing lens are integrally molded on the common reinforcing member. , the positional relationship between the shedding correction window and the collective lens can be determined with high precision without the need for adjustment work.

発明を実施するための最良の形態 第1図、第2図に於て、1はフアクシミリ装置
の筐体、2は筐体1内の両側に設置された一対の
固定側板(図示しない)の間に張設され、両側板
を結合する補強部材である。補強部材2は樹脂で
一体成形されている。3はフアクシミリ装置の筐
体1内の前部に配設された原稿搬送機構で、挿入
された原稿4を筐体1の上部に一直線に形成され
た原稿搬送路5を経て排出口6から排出する。原
稿搬送機構3は以下の通り構成されている。7,
8は送紙ローラ、9は分離ローラである。送紙ロ
ーラ7,8及び分離ローラ9は夫々回転軸が前記
両側板で支承され、一方の側板に取付けられたパ
ルスモータ(図示しない)により駆動されてい
る。10はブレーキ片で、分離ローラ9に圧接
し、複数枚の原稿4が挿入された場合、上層の原
稿を摩擦停止させ、最下層の原稿から順次1枚ず
つ送出される様に機能する。11は送紙ローラ
7,8に原稿4を押圧する板ばね、12は板ばね
11の取付けられた送信側の蓋体で、前記両側板
に固着した支軸13で回動自在に枢支されてい
る。14は送信側の蓋体12に固着された原稿ガ
イド、15は分離ローラ9の上流側箇所で原稿4
の有無を検出する第1検出手段で、反射型センサ
にて形成されている。16は原稿読取り部17の
直前で原稿4を検出する第2検出手段で、蓋体1
2に取付けられた発光ダイオード16aと、該ダ
イオードに原稿搬送路5を挾んで対向して配置さ
れたフオトトランジスタ16bとからなる。前記
搬送機構3では、第1検出手段15で原稿4を検
出すると送紙ローラ7,8及び分離ローラ9が回
転し、分離ローラ9から順次1枚ずつ繰り出され
た原稿4は、送紙ローラ7,8により搬送され
る。その後送信が終了して第2検出手段16で最
終原稿4の後端を検出すると、検出時点から遅延
時間後に送紙ローラ7,8及び分離ローラ9を停
止する。
BEST MODE FOR CARRYING OUT THE INVENTION In FIGS. 1 and 2, 1 is a housing of a facsimile device, and 2 is between a pair of fixed side plates (not shown) installed on both sides inside the housing 1. This is a reinforcing member that connects both side plates. The reinforcing member 2 is integrally molded from resin. Reference numeral 3 denotes a document transport mechanism disposed at the front of the housing 1 of the facsimile device, which ejects the inserted original 4 from the discharge port 6 through the document transport path 5 formed in a straight line at the top of the housing 1. do. The document transport mechanism 3 is configured as follows. 7,
8 is a paper feed roller, and 9 is a separation roller. The paper feed rollers 7, 8 and the separation roller 9 each have their rotating shafts supported by the side plates, and are driven by a pulse motor (not shown) attached to one side plate. A brake piece 10 comes into pressure contact with the separating roller 9, and when a plurality of originals 4 are inserted, it functions to stop the upper layer of originals by friction and send out the originals one by one starting from the lowest layer. 11 is a leaf spring that presses the document 4 against the paper feed rollers 7 and 8; 12 is a lid on the sending side to which the leaf spring 11 is attached; the lid body is rotatably supported on support shafts 13 fixed to the both side plates. ing. Reference numeral 14 denotes a document guide fixed to the lid 12 on the sending side, and reference numeral 15 denotes a position on the upstream side of the separation roller 9 for handling the document 4.
The first detecting means detects the presence or absence of the object, and is formed of a reflective sensor. 16 is a second detection means for detecting the document 4 immediately before the document reading section 17;
2, and a phototransistor 16b disposed opposite to the diode with the document conveyance path 5 in between. In the conveyance mechanism 3, when the first detection means 15 detects the document 4, the paper feed rollers 7, 8 and the separation roller 9 rotate, and the document 4, which is fed out one by one from the separation roller 9, is transferred to the paper feed roller 7. , 8. Thereafter, when the transmission ends and the second detection means 16 detects the rear end of the final document 4, the paper feed rollers 7, 8 and the separation roller 9 are stopped after a delay time from the detection time.

18はフアクシミリ装置の筐体1の中央部に配
設された記録紙搬送機構で、サーマルタイプの記
録ヘツド19に記録紙20を押圧するプラテンロ
ーラ21にて、連続記録紙20を補強部材2の用
紙ガイド部21に沿つて繰出し更にガイド22,
23によつて形成される記録紙搬送路24を経て
自動カツタ25に送り所定の長さに切断して排出
口26から送出する。プラテンローラ21は記録
紙検出センサ27の下流側において前記両側板に
回転自在に支承され、パルスモータ(図示しな
い)により一方向クラツチ(図示しない)を介し
て駆動されている。
Reference numeral 18 denotes a recording paper conveying mechanism disposed in the center of the housing 1 of the facsimile device, in which the continuous recording paper 20 is transferred to the reinforcing member 2 by a platen roller 21 that presses the recording paper 20 against a thermal type recording head 19. The paper is fed out along the paper guide section 21, and further the guide 22,
The recording paper is sent to an automatic cutter 25 through a recording paper transport path 24 formed by a recording paper 23, cut into a predetermined length, and sent out from a discharge port 26. The platen roller 21 is rotatably supported by the side plates on the downstream side of the recording paper detection sensor 27, and is driven by a pulse motor (not shown) via a one-way clutch (not shown).

28は後述の光学系29の光軸30の障害にな
らない様に光軸30を避けた箇所で記録ヘツド1
9を取付けた受信側の蓋体だ、前記両側板に固着
した軸31に回動自在に枢支され、記録紙搬送機
構18の上部の開口32を開閉自在に施蓋してい
る。この蓋体28は原稿搬送路5の上流側に配置
され、その上面が原稿挿入ガイドとして利用され
ている。また、蓋体28はその閉塞時に記録ヘツ
ド19とプラテンローラ21が圧接状態に維持さ
れるべく、ロツク機構(図示しない)によりロツ
クされる様になつている。
Reference numeral 28 indicates the recording head 1 at a location that avoids the optical axis 30 of an optical system 29, which will be described later, so as not to interfere with the optical axis 30.
9 is attached, and is rotatably supported on a shaft 31 fixed to the both side plates, and covers an opening 32 at the top of the recording paper transport mechanism 18 so as to be openable and closable. This lid body 28 is arranged on the upstream side of the document transport path 5, and its upper surface is used as a document insertion guide. Further, the lid 28 is locked by a locking mechanism (not shown) so that the recording head 19 and the platen roller 21 are maintained in pressure contact when the lid 28 is closed.

前記光学系29は以下の通り構成されている。
33は読取りガラス34を通して読取り部17に
て原稿4を照光する管状光源で、螢光灯にて形成
され、原稿4の幅方向(図面に直角な方向)に延
長されている。35は反射鏡で、反射光の光軸の
方向を変換して反射光を筐体1の後部の後述する
光電変換部36に送つている。
The optical system 29 is configured as follows.
Reference numeral 33 denotes a tubular light source that illuminates the original 4 in the reading unit 17 through the reading glass 34, and is formed of a fluorescent lamp and extends in the width direction of the original 4 (direction perpendicular to the drawing). A reflecting mirror 35 converts the direction of the optical axis of the reflected light and sends the reflected light to a photoelectric conversion section 36, which will be described later, at the rear of the housing 1.

光電変換部36は筐体1の後部に配設され、以
下の通り構成されている。37は集光レンズ、3
8は集光レンズの保持部で、前記補強部材2の後
端部にこの補強部材2に一体に樹脂成形されてい
る。39はイメージセンサ等よりなる光電変換素
子、40は光電変換素子39を取付けた読取基板
で、取付けネジ(図示しない)により保持部38
に位置及び角度が調整自在な態様で取付けられて
いる。
The photoelectric conversion unit 36 is disposed at the rear of the housing 1 and is configured as follows. 37 is a condensing lens, 3
Reference numeral 8 denotes a condenser lens holding portion, which is integrally molded with resin at the rear end portion of the reinforcing member 2. 39 is a photoelectric conversion element such as an image sensor, and 40 is a reading board to which the photoelectric conversion element 39 is attached.
It is attached in such a way that its position and angle can be adjusted.

41は電気回路基板、42は電源部である。 41 is an electric circuit board, and 42 is a power supply section.

ここで、前記補強部材2の中間部には箱状の記
録ロール紙20′の保持部43が一体成形されて
いる。かつ、保持部43の側壁43aには、記録
ロール紙20′を避けてその上部箇所に光学系2
9のシエーデイング補正窓44が形成されてい
る。
Here, a box-shaped holding portion 43 for the recording roll paper 20' is integrally formed in the intermediate portion of the reinforcing member 2. In addition, an optical system 2 is mounted on the side wall 43a of the holding portion 43 at an upper portion of the side wall 43a, avoiding the recording roll paper 20'.
Nine shading correction windows 44 are formed.

第3図、第4図に示す様に、シエーデイング補
正窓44は、光軸30に対して中央部が狭く両端
部が拡くなる様に、上下の縁部が円弧状に形成さ
れている。このため、補正窓44を通過する読取
り光は幅方向における中央部では光量が抑制さ
れ、両端部では光量がほとんど抑制されず、従つ
て光量が均一に調整される。また、集光レンズ3
7の保持部38とシエーデイング補正窓44とが
共通の補強部材2に一体成形されることになり、
従つて集光レンズ37とシエーデイング補正窓4
4との位置関係を調整作業を不要として高精度で
決定できる。
As shown in FIGS. 3 and 4, the shading correction window 44 has upper and lower edges formed in an arc shape so that the center portion is narrow with respect to the optical axis 30 and both ends are widened. Therefore, the amount of reading light passing through the correction window 44 is suppressed at the central portion in the width direction, and the amount of light is hardly suppressed at both ends, so that the amount of light is adjusted uniformly. In addition, condenser lens 3
The holding portion 38 and the shading correction window 44 of No. 7 are integrally molded on the common reinforcing member 2,
Therefore, the condenser lens 37 and the shedding correction window 4
4 can be determined with high precision without the need for adjustment work.

次に前記装置の動作を複写動作を例にとつて説
明する。前記装置では、原稿4が原稿ガイドを兼
ねた受信側の蓋体28の上面に沿つて挿入口に差
し込まれると、第1検出手段15が原稿4の前端
を検出して検出信号を発生し、この信号によりパ
ルスモータが作動して分離ローラ9及び送紙ロー
ラ7,8が回転を開始する。挿入された原稿4が
複数枚の場合には、分離ローラ9及びブレーキ片
10で挾圧移送され、最下層の原稿から順次1枚
ずつ送出される。その後原稿4は送紙ローラ7及
び板ばね11で挾圧移送され原稿4の前端が第2
検出手段16で検出されると検出信号が発生し、
タイマーが作動して遅延時間後に原稿4の前端が
読取り部17に到達したところで一旦停止する。
その後原稿搬送機構3の送紙ローラ7,8と記録
紙搬送機構18のプラテンローラ21が、夫々パ
ルスモータにより同期して回転し読取走査と記録
走査が併行して行なわれる。
Next, the operation of the apparatus will be explained using a copying operation as an example. In the device, when the original 4 is inserted into the insertion slot along the upper surface of the receiving side lid 28 which also serves as a document guide, the first detection means 15 detects the front end of the original 4 and generates a detection signal, This signal activates the pulse motor, and the separation roller 9 and paper feed rollers 7 and 8 start rotating. When a plurality of original documents 4 are inserted, they are transferred under pressure by separation rollers 9 and brake pieces 10, and are sent out one by one starting from the lowest layer. Thereafter, the document 4 is transferred with a pinch pressure by the paper feed roller 7 and the leaf spring 11, so that the front end of the document 4 is transferred to the second
When detected by the detection means 16, a detection signal is generated,
When the front end of the document 4 reaches the reading section 17 after a delay time when the timer is activated, the document 4 is temporarily stopped.
Thereafter, the paper feed rollers 7 and 8 of the document transport mechanism 3 and the platen roller 21 of the recording paper transport mechanism 18 are rotated in synchronism by respective pulse motors, and reading scanning and recording scanning are performed in parallel.

ここで挿入された原稿が1枚の場合、原稿4の
後端が第2検出手段16で検出されると検出時点
からタイマーにより所定の時間、具体的には原稿
4の後端が読取り部17に到達するまでの時間、
読取り走査を継続しその後原稿排出動作に移る。
記録紙搬送機構18は、記録終了後後、記録紙2
0の記録終了箇所が自動カツタ25による切断箇
所まで記録紙20を搬送し、自動カツタ25によ
り所定の長さに切断した後すべての動作が終了す
る。
In the case where only one original is inserted here, when the rear end of the original 4 is detected by the second detection means 16, a timer is activated from the time of detection for a predetermined period of time, specifically, when the rear end of the original 4 is detected by the reading section 17. The time it takes to reach
The reading scan continues, and then the document ejection operation begins.
The recording paper transport mechanism 18 transports the recording paper 2 after recording is completed.
The recording paper 20 is conveyed to the cutting point by the automatic cutter 25 where the recording end point of 0 is cut, and after the automatic cutter 25 cuts the recording paper 20 to a predetermined length, all operations are completed.

また、挿入された原稿が複数枚の場合、記録紙
搬送機構18においては、先行頁の記録終了毎に
記録紙を記録部から切断箇所まで空送りすること
なく、先行頁の画像の記録された記録紙20に後
続頁の画像を連続して記録し、連続して記録され
た先行頁と後続頁とが切断箇所を通るときに切断
して分離され、その後最終頁の記録終了後に、記
録紙20を記録部から切断箇所まで空送りして切
断する。
In addition, when there are multiple sheets of the inserted document, the recording paper transport mechanism 18 allows the image of the preceding page to be recorded without having to feed the recording paper from the recording section to the cutting point every time the recording of the preceding page is completed. Images of subsequent pages are continuously recorded on the recording paper 20, and the continuously recorded preceding and subsequent pages are cut and separated when passing through a cutting point, and then, after recording the last page, the recording paper is 20 is fed from the recording section to the cutting point and cut.

産業上の利用可能性 この発明は読取り光をシエーデイング補正して
なるフアクシミリ装置に利用される。
Industrial Applicability The present invention can be used in a facsimile device that performs shading correction on reading light.

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

第1図はこの発明の一実施例の側面方向からみ
た概略的構成図、第2図は同実施例の蓋体を開放
した状態の側面方向からみた概略的構成図、第3
図は同実施例の要部の斜視図、第4図は同実施例
の要部の正面図である。 1……筐体、2……補強部材、17……読取り
部、20′……記録ロール紙、29……光学系、
30……光電変換部、38……集光レンズの保持
部、43……ロール紙の保持部、43a……保持
部の側壁、44……シエーデイング補正窓。
FIG. 1 is a schematic configuration diagram of an embodiment of the present invention viewed from the side direction, FIG. 2 is a schematic configuration diagram of the same embodiment viewed from the side direction with the lid opened, and FIG.
The figure is a perspective view of the main parts of the same embodiment, and FIG. 4 is a front view of the main parts of the same embodiment. DESCRIPTION OF SYMBOLS 1... Housing, 2... Reinforcement member, 17... Reading section, 20'... Recording roll paper, 29... Optical system,
30... Photoelectric conversion unit, 38... Condensing lens holding part, 43... Roll paper holding part, 43a... Side wall of holding part, 44... Shading correction window.

Claims (1)

【特許請求の範囲】 1 原稿読取り部と該原稿読取り部に光学系を介
して結合する光電変換部との間に、フアクシミリ
装置の筐体内の両側に設置された一対の側板を結
合する補強部材を配設し、前記補強部材に光学系
のシユーデイング補正窓を設けたことを特徴とす
るフアクシミリ装置。 2 前記補強部材に、箱状の記録ロール紙の保持
部を一体成形し、前記保持部の側壁に前記シエー
デイング補正窓を設けてなることを特徴とする特
許請求の範囲第1項記載のフアクシミリ装置。 3 前記補強部材に、光学系の集光レンズの保持
部を一体成形してなることを特徴とする特許請求
の範囲第1項又は第2項記載のフアクシミリ装
置。
[Scope of Claims] 1. A reinforcing member that connects a pair of side plates installed on both sides in the casing of the facsimile device between a document reading section and a photoelectric conversion section coupled to the document reading section via an optical system. A facsimile apparatus characterized in that the reinforcing member is provided with a shading correction window of an optical system. 2. The facsimile apparatus according to claim 1, wherein a box-shaped holding section for recording roll paper is integrally molded on the reinforcing member, and the shading correction window is provided on a side wall of the holding section. . 3. The facsimile apparatus according to claim 1 or 2, wherein a holding part for a condensing lens of an optical system is integrally molded on the reinforcing member.
JP57219032A 1982-12-13 1982-12-13 Facsimile device Granted JPS59108451A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57219032A JPS59108451A (en) 1982-12-13 1982-12-13 Facsimile device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57219032A JPS59108451A (en) 1982-12-13 1982-12-13 Facsimile device

Publications (2)

Publication Number Publication Date
JPS59108451A JPS59108451A (en) 1984-06-22
JPH0354503B2 true JPH0354503B2 (en) 1991-08-20

Family

ID=16729180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57219032A Granted JPS59108451A (en) 1982-12-13 1982-12-13 Facsimile device

Country Status (1)

Country Link
JP (1) JPS59108451A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6397956U (en) * 1986-12-15 1988-06-24
US5329378A (en) * 1992-11-18 1994-07-12 Samsung Electronics Co., Ltd. Facsimile device with a white level controller
JP6236767B2 (en) * 2012-11-12 2017-11-29 株式会社リコー Reading lens unit, image reading apparatus, and image forming apparatus

Also Published As

Publication number Publication date
JPS59108451A (en) 1984-06-22

Similar Documents

Publication Publication Date Title
JP6040714B2 (en) Automatic document conveying device, image reading device equipped with automatic document conveying device, and image forming apparatus
JP4165541B2 (en) Automatic document feeder and image reading apparatus
JP4207943B2 (en) Automatic document feeder and image reading apparatus
JP2007096803A (en) Automatic document feeder
JPH0354503B2 (en)
CN108337390B (en) Document feeding device, document reading device, and document feeding method
US5294941A (en) Recording apparatus
JP3172205B2 (en) Image reading device
JPH07301962A (en) Document reader
JP2002359724A (en) Double-sided original reader
CN111717695B (en) Medium conveying device and image reading device
JPH05897B2 (en)
JP3783157B2 (en) Image forming apparatus
JP3071914B2 (en) Image reading device
JPH0420303B2 (en)
JPH0725453B2 (en) Sheet holding device
JPH04319857A (en) Image reader
JP3345370B2 (en) Paper ejection mechanism
JP3896504B2 (en) Image reading apparatus with document feeding mechanism
JP3877487B2 (en) Paper discharge device and image forming apparatus
JPH11292344A (en) Automatic document feeder
JPH09284480A (en) Both-side original reader
JPS61148955A (en) Picture reading mechanism
JPH0563913A (en) Reader
JP2004312365A (en) Image reader and facsimile machine