JP2517808B2 - Image input / output device - Google Patents
Image input / output deviceInfo
- Publication number
- JP2517808B2 JP2517808B2 JP3241629A JP24162991A JP2517808B2 JP 2517808 B2 JP2517808 B2 JP 2517808B2 JP 3241629 A JP3241629 A JP 3241629A JP 24162991 A JP24162991 A JP 24162991A JP 2517808 B2 JP2517808 B2 JP 2517808B2
- Authority
- JP
- Japan
- Prior art keywords
- roller
- reversing
- image input
- arm
- sheet
- 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
Links
Landscapes
- Conveyance By Endless Belt Conveyors (AREA)
- Registering Or Overturning Sheets (AREA)
- Facsimiles In General (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は例えば読取装置若しくは
印字装置のような画像入出力装置に関するものであり，
特に用紙の両面に対して画像の入出力を行なうように構
成された画像入出力装置において，用紙の表裏反転を行
なう反転部の構成を簡単かつ安価に改良した画像入出力
装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image input / output device such as a reader or a printer.
In particular, the present invention relates to an image input / output device which is configured to input / output images to / from both sides of a sheet and has a simple and inexpensive improvement of the structure of a reversing unit for inverting the sheet.
【０００２】[0002]
【従来の技術】従来から電算機その他の情報記憶装置と
の間で情報若しくは画像（以下単に画像と記す）を入出
力する装置としては，例えば読取装置および印字装置が
知られており，用紙の表裏両面に対して入出力を行ない
得る装置もある。このような読取装置としては，一般に
ホッパ上に積載された複数枚の原稿を所定の準備位置ま
で移動させるホッパ手段と，準備位置に置かれた原稿を
１枚宛取込むピック手段と，原稿を搬送する搬送手段
と，搬送された原稿を読取って電気信号に変換する読取
手段と，読取り後の原稿を表裏反転する反転手段と，読
取り後の原稿をスタッカに排出する排出手段とを備えて
いる。これらの手段は，近年においては一般にマイクロ
プロセッサによって制御されるようになっている。2. Description of the Related Art Conventionally, as a device for inputting / outputting information or an image (hereinafter simply referred to as an image) to / from a computer or other information storage device, for example, a reading device and a printing device have been known. There are also devices that can perform input / output on both the front and back sides. As such a reading device, generally, a hopper means for moving a plurality of originals stacked on a hopper to a predetermined preparation position, a pick means for taking one original placed at the preparation position, and an original The printer includes a conveying unit that conveys a document, a reading unit that reads the conveyed document and converts the document into an electric signal, a reversing unit that reverses the document that has been read, and a discharge unit that discharges the document that has been read to a stacker. . In recent years, these means are generally controlled by a microprocessor.
【０００３】図４は従来の両面読取装置の例を模式化し
て示す構成説明図である。図４において，１はホッパで
あり，複数枚の原稿２を積載し，準備位置までの間を上
昇下降可能に形成されている。３はピックローラであ
り，ホッパ１上に最上層の原稿２と接触するように設け
られ，ピック手段を構成する。４はフィードローラ，５
は搬送ローラであり，搬送手段を構成する。６はスタッ
カであり，読取り後の原稿２を収容する。次に７は光
源，８はミラー，９は光学ユニット，１０はＣＣＤであ
り，読取手段１４を構成し，原稿２の搬送経路１１に臨
ませて設ける。１２はループであり，搬送経路１１の下
流側に接続して設けると共に，複数対の搬送ローラ１３
を介装させて反転部１５を構成する。FIG. 4 is a structural explanatory view schematically showing an example of a conventional double-sided reading device. In FIG. 4, reference numeral 1 denotes a hopper, which is configured to stack a plurality of originals 2 and to be able to move up and down to a preparation position. A pick roller 3 is provided on the hopper 1 so as to come into contact with the uppermost original 2 and constitutes picking means. 4 is a feed roller, 5
Is a conveying roller and constitutes a conveying means. Reference numeral 6 denotes a stacker, which stores the read original 2. Next, 7 is a light source, 8 is a mirror, 9 is an optical unit, and 10 is a CCD, which constitutes the reading means 14 and is provided so as to face the conveyance path 11 of the document 2. Reference numeral 12 denotes a loop, which is connected to the downstream side of the transport path 11 and is provided with a plurality of pairs of transport rollers 13.
The reversing unit 15 is configured by interposing.
【０００４】上記の構成により，原稿２の両面を読取る
には，まず原稿２を積載したホッパ１を上昇させてピッ
クローラ３に最上層の原稿２を接触させて，ピックロー
ラ３を時計方向に回転させれば，原稿２が１枚宛取り込
まれ，フィードローラ４および搬送ローラ５によって左
方に搬送される。そして搬送経路１１に臨ませて設けら
れた読取手段１４によって原稿２の表面が読取られる。
次に原稿２はループ１２に搬送されて表裏が反転されて
搬送経路１１に至る。この場合搬送ローラ５およびフィ
ードローラ４は前記と逆方向に回転させ，原稿２を右方
に搬送し，原稿２の裏面を読取るのである。読取り後の
原稿２はスタッカ６に排出される。なおスタッカ６ａは
片面読取り後の原稿を収容するためのものであり，搬送
経路１１からループ１２に搬送されずに排出された原稿
２を収容する。In order to read both sides of the original 2 with the above structure, first, the hopper 1 on which the original 2 is loaded is raised to bring the uppermost original 2 into contact with the pick roller 3, and the pick roller 3 is moved clockwise. When rotated, one original 2 is taken in and conveyed by the feed roller 4 and the conveying roller 5 to the left. Then, the surface of the original 2 is read by the reading means 14 provided so as to face the transport path 11.
Next, the original 2 is conveyed to the loop 12, the front side and the back side are reversed, and reaches the conveyance path 11. In this case, the feed roller 5 and the feed roller 4 are rotated in the opposite direction to feed the document 2 to the right and read the back side of the document 2. The read document 2 is discharged to the stacker 6. The stacker 6a is for accommodating the original document after one-sided reading, and accommodates the original document 2 discharged without being conveyed from the conveying path 11 to the loop 12.
【０００５】[0005]
【発明が解決しようとする課題】上記従来の両面読取装
置においては，原稿２の表面を反転させるための反転部
１５が大型であると共に，複雑であるという問題点があ
る。すなわちループ１２の周長は，読取対象である原稿
の最長のものに対応させて形成してあるため，読取長さ
の小さい原稿であってもループ１２の全周長を搬送しな
いと表裏の反転ができない。このため読取りに要する時
間が長くかかるという欠点がある。The above-mentioned conventional double-sided reading device has a problem that the reversing unit 15 for reversing the surface of the original 2 is large and complicated. That is, since the circumference of the loop 12 is formed so as to correspond to the longest one of the originals to be read, even if the original having a small reading length is fed, the entire circumference of the loop 12 must be conveyed to reverse the front and back. I can't. For this reason, there is a drawback that it takes a long time to read.
【０００６】またループ１２に複数対の搬送ローラ１３
を介装させる必要があると共に，搬送経路１１とループ
１２との境界点１２ａに，原稿２の搬送方向切換えのた
めの用紙ガイド（図示せず）を設ける必要があるため，
構造が複雑になるという欠点もある。一方この種の両面
読取装置に対する要求は近年次第に厳しくなってきてお
り，より小型化，低コスト化が望まれている。The loop 12 has a plurality of pairs of conveying rollers 13.
Since it is necessary to interpose a sheet guide (not shown) for switching the conveyance direction of the document 2 at the boundary point 12a between the conveyance path 11 and the loop 12,
There is also a drawback that the structure becomes complicated. On the other hand, demands for this type of double-sided reading device have become stricter in recent years, and further downsizing and cost reduction are desired.
【０００７】本発明は上記従来技術に存在する問題点を
解決し，構造が簡単であると共に，小型化，低コスト化
が可能である両面画像入出力装置を提供することを目的
とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems existing in the prior art, and to provide a double-sided image input / output device which has a simple structure, and can be downsized and reduced in cost.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に，本発明においては，給紙部と反転部との間に設けら
れかつ用紙を正逆両方向に搬送可能に形成された用紙搬
送手段と，上記用紙の搬送経路に臨ませて設けられた画
像入出力手段とを備え，用紙の両面に対して画像の入出
力を行なうように構成された画像入出力装置において，
反転部に用紙を挟着搬送可能に形成してなる１対の上下
ローラを正逆回転可能に設け，下ローラと同軸的にアー
ムを回動可能に設けると共に，このアームの自由端に反
転ローラを回転可能に設け，かつこの反転ローラをアー
ムの回動を介して前記上ローラと当接離脱可能に形成
し，画像入出力手段から反転部に搬送された用紙を表裏
反転させて画像入出力手段に返送するように構成する，
という技術的手段を採用した。In order to achieve the above-mentioned object, in the present invention, a sheet conveying means provided between a sheet feeding section and a reversing section and capable of conveying a sheet in both forward and backward directions. And an image input / output unit provided so as to face the sheet conveyance path, and an image input / output device configured to input / output images on both sides of the sheet.
A pair of upper and lower rollers formed so that the sheet can be sandwiched and conveyed in the reversing portion is provided so as to be able to rotate forward and backward, an arm is provided so as to be rotatable coaxially with the lower roller, and a reversing roller is provided at a free end of the arm. Is rotatably provided, and the reversing roller is formed so as to be able to come into contact with and separate from the upper roller through the rotation of an arm, and the sheet conveyed from the image input / output means to the reversing unit is turned upside down to perform image input / output. Configured to return to the means,
I adopted the technical means.
【０００９】[0009]
【作用】上記の構成により，用紙の一方の面に対して画
像の入出力を行なった後，反転部に搬送された用紙を上
下ローラと反転ローラによって表裏反転させて返送する
ことができるから，用紙の他方の面に対しても画像の入
出力を行なうことができるのである。With the above structure, after the image is input / output to / from one side of the sheet, the sheet conveyed to the reversing unit can be turned upside down by the upper and lower rollers and the reversing roller and returned. Images can be input / output on the other side of the sheet.
【００１０】[0010]
【実施例】図１は本発明の実施例を示す構成説明図であ
り，同一部分は前記図４と同一の参照符号で示す。図１
において，１６ａ，１６ｂは各々上ローラおよび下ロー
ラであり，反転部１５に搬送される原稿２を挟着搬送可
能に形成し，かつ正逆回転可能に設ける。なお上ローラ
１６ａは適宜の駆動手段（図示せず）を介して駆動可能
とする。次に１７はアームであり，下ローラ１６ｂと同
軸的に回動可能に設けると共に，このアーム１７の自由
端に反転ローラ１８を回転可能に設ける。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory diagram showing the structure of an embodiment of the present invention, in which the same parts are designated by the same reference numerals as in FIG. FIG.
In the above, reference numerals 16a and 16b denote upper and lower rollers, respectively, which are formed so that the original 2 conveyed to the reversing unit 15 can be sandwiched and conveyed, and can be rotated forward and backward. The upper roller 16a can be driven via an appropriate driving means (not shown). Next, 17 is an arm, which is rotatably provided coaxially with the lower roller 16b, and a reversing roller 18 is rotatably provided at the free end of the arm 17.
【００１１】図２は図１における反転部１５の構成の詳
細を示す拡大説明図であり，(a) は静止状態を示し，
(b) は作動状態を示す。なお同一部分は前記図１と同一
の参照符号で示す。図２において，１９はロータリーソ
レノイドであり，読取装置を構成するフレーム２０に設
け，例えば板ばねからなる作動アーム２１を回動自在に
設けると共に，作動アーム２１がアーム１７と当接離脱
可能に形成する。２２は引張コイルばねであり，アーム
１７とフレーム２０との間に張設する。FIG. 2 is an enlarged explanatory view showing the details of the configuration of the reversing unit 15 in FIG. 1, in which (a) shows a stationary state,
(b) shows the operating state. The same parts are designated by the same reference numerals as those in FIG. In FIG. 2, reference numeral 19 denotes a rotary solenoid, which is provided on a frame 20 which constitutes a reading device, and is provided with an operating arm 21 made of, for example, a leaf spring so as to be rotatable, and the operating arm 21 is formed so as to come into contact with and separate from the arm 17. To do. 22 is a tension coil spring, which is stretched between the arm 17 and the frame 20.
【００１２】上記の構成により図２(a) の状態からロー
タリーソレノイド１９を作動させると，作動アーム２１
が反時計方向に回動し，アーム１７と当接して更に回動
して図２(b) の状態となる。すなわちアーム１７の回動
により反転ローラ１８は上ローラ１６ａと当接する。次
にロータリーソレノイド１９の作動を解除すると，引張
コイルばね２２の復元力により，アーム１７および作動
アーム２１は時計方向に回動し，図２(a) の状態に復元
する。なおアーム１７は静止状態においては適宜のスト
ッパ（図示せず）と当接することにより，反転ローラ１
８が搬送経路１１の下側に位置するように構成する。With the above construction, when the rotary solenoid 19 is operated from the state shown in FIG.
Rotates counterclockwise, comes into contact with the arm 17 and further rotates to the state shown in FIG. 2 (b). That is, the rotation of the arm 17 causes the reversing roller 18 to contact the upper roller 16a. Next, when the operation of the rotary solenoid 19 is released, the restoring force of the tension coil spring 22 causes the arm 17 and the operating arm 21 to rotate in the clockwise direction to restore the state of FIG. 2 (a). In the stationary state, the arm 17 comes into contact with an appropriate stopper (not shown) so that the reversing roller 1
8 is located below the transport path 11.
【００１３】図３は本発明の実施例における原稿の反転
動作を示す説明図であり，同一部分は前記図１および図
２と同一の参照符号で示す。図３において２３はセンサ
であり，搬送ローラ５と反転ローラ１８との間の搬送経
路１１に臨ませて設ける。まず図３(a) に示すように，
反転ローラ１８を搬送経路１１の下側に位置するように
保持し，読取り後の原稿２を搬送し，センサ２３が原稿
２の後端を検出するまで上ローラ１６ａと下ローラ１６
ｂとにより原稿２をスタッカ６ａに排出する。そしてセ
ンサ２３が原稿２の後端を検出すると上ローラ１６ａお
よび下ローラ１６ｂの回転を停止すると共に，アーム１
７を回動させる。FIG. 3 is an explanatory view showing a document reversing operation in the embodiment of the present invention, and the same parts are designated by the same reference numerals as those in FIGS. 1 and 2. In FIG. 3, reference numeral 23 denotes a sensor, which is provided so as to face the transport path 11 between the transport roller 5 and the reversing roller 18. First, as shown in Fig. 3 (a),
The reversing roller 18 is held so as to be positioned below the conveying path 11, the original 2 after being read is conveyed, and the upper roller 16a and the lower roller 16 are conveyed until the sensor 23 detects the rear end of the original 2.
The document 2 is ejected to the stacker 6a by using b. When the sensor 23 detects the rear end of the document 2, the upper roller 16a and the lower roller 16b stop rotating and the arm 1
Rotate 7.
【００１４】すなわち図３(b) に示すようにアーム１７
を反時計方向に回動させて，原稿２の後端を上ローラ１
６ａと反転ローラ１８とによって挟着する。なおアーム
１７を作動させるには，前記図２に示すようなロータリ
ーソレノイド１９を使用することができる。次に上ロー
ラ１６ａを反時計方向に回転させると，原稿２はスタッ
カ６ａから引き出されて矢印方向に搬送され，表裏が反
転させられる。そして原稿２の後端が上ローラ１６ａと
下ローラ１６ｂとの間を通過した後上ローラ１６ａを停
止する。That is, as shown in FIG. 3 (b), the arm 17
By rotating the counterclockwise so that the rear end of the original 2 is placed on the upper roller 1
It is sandwiched by 6a and the reversing roller 18. To operate the arm 17, a rotary solenoid 19 as shown in FIG. 2 can be used. Next, when the upper roller 16a is rotated counterclockwise, the original 2 is pulled out from the stacker 6a and conveyed in the direction of the arrow, and the front and back are reversed. Then, after the rear end of the original 2 passes between the upper roller 16a and the lower roller 16b, the upper roller 16a is stopped.
【００１５】上記原稿２の表裏反転後，図３(c) に示す
ように上ローラ１６ａを時計方向に回転させると，原稿
２は裏面を上方にして搬送経路１１へ返送されるから，
搬送ローラ５を逆転させて原稿２を読取手段１４（図１
参照）において裏面の読取りが可能となる。この場合反
転ローラ１８はアーム１７によって上ローラ１６ａに押
圧されて従動するため，原稿２の挟着搬送が円滑に行な
われる。After the document 2 is turned upside down, the upper roller 16a is rotated clockwise as shown in FIG. 3 (c), so that the document 2 is returned to the transport path 11 with its back side facing upward.
The conveyance roller 5 is rotated in the reverse direction to read the document 2 by the reading unit 14 (see FIG.
The reading of the back side becomes possible in the reference). In this case, the reversing roller 18 is pressed by the upper roller 16a by the arm 17 and is driven by the upper roller 16a, so that the document 2 can be nipped and conveyed smoothly.
【００１６】次に図３(d) に示すように原稿２の後端を
センサ２３が検出すると，上ローラ１６ａの回転を停止
すると共に，アーム１７を時計方向に回動させて反転ロ
ーラ１８と上ローラ１６ａとの当接を解除し，反転ロー
ラ１８が搬送経路１１の下側に位置するように復元す
る。なお上記アーム１７の回動は，例えば前記図２に示
すような引張コイルばね２２の張力によって円滑に行な
われ得る。Next, when the sensor 23 detects the rear end of the original 2 as shown in FIG. 3 (d), the upper roller 16a is stopped from rotating and the arm 17 is rotated in the clockwise direction so that the reversing roller 18 is formed. The contact with the upper roller 16a is released, and the reversing roller 18 is restored so as to be located below the transport path 11. The rotation of the arm 17 can be smoothly performed by the tension of the tension coil spring 22 as shown in FIG.
【００１７】本実施例においては原稿読取手段について
記述したが，この読取手段に代えて用紙への印字手段と
しても同様に適用可能であり，要するに用紙の両面に対
して画像の入出力を行なうように構成された画像入出力
装置に適用可能である。またアームの回動手段としてロ
ータリーソレノイドを駆動源とするものについて記述し
たが，これ以外の手段であってもよく，要するに略水平
状態から略直立状態に至る間を回動させ得る駆動手段で
あればよく，場合によっては復元用のばねを省略しても
よい。更に反転部における各構成部材の動作制御手段と
しては，センサおよびパルスモータ等を含む公知の制御
手段を適用できることは勿論である。Although the document reading means has been described in the present embodiment, it can be similarly applied to a paper printing means instead of the reading means, that is, an image can be input / output to / from both sides of the paper. It is applicable to the image input / output device configured as described above. Further, although the rotary solenoid having the rotary solenoid as the drive source has been described, other means may be used as long as it is a drive means capable of rotating between a substantially horizontal state and a substantially upright state. The restoring spring may be omitted in some cases. Further, it is needless to say that a known control means including a sensor, a pulse motor and the like can be applied as the operation control means of each component in the reversing section.
【００１８】[0018]
【発明の効果】本発明は以上記述のような構成および作
用であるから，下記の効果を奏し得る。 (1) 従来のものにおけるループ状の反転部と比較して小
型であると共に，構造が簡単であるため，装置全体とし
ての小型化および低コスト化が可能である。 (2) 用紙の総搬送長が短縮されると共に，用紙のサイズ
に対応して反転動作を行なうことができるため，画像入
出力に要する時間が短縮され得る。EFFECTS OF THE INVENTION Since the present invention has the structure and operation as described above, the following effects can be obtained. (1) Compared to the conventional loop-shaped reversing part, it is smaller and has a simple structure, so the overall size and cost of the device can be reduced. (2) Since the total transport length of the paper is shortened and the reversing operation can be performed according to the size of the paper, the time required for image input / output can be shortened.
【図１】本発明の実施例を示す構成説明図である。FIG. 1 is a structural explanatory view showing an embodiment of the present invention.
【図２】図１における反転部の構成の詳細を示す拡大説
明図であり，(a) は静止状態を示し，(b) は作動状態を
示す。2A and 2B are enlarged explanatory diagrams showing details of the configuration of the reversing unit in FIG. 1, in which FIG. 2A shows a stationary state and FIG. 2B shows an operating state.
【図３】本発明の実施例における原稿の反転動作を示す
説明図である。FIG. 3 is an explanatory diagram showing a document reversing operation according to the embodiment of the present invention.
【図４】従来の両面読取装置の例を模式化して示す構成
説明図である。FIG. 4 is a configuration explanatory view schematically showing an example of a conventional double-sided reading device.
１６ａ 上ローラ １６ｂ 下ローラ １７ アーム １８ 反転ローラ 16a Upper roller 16b Lower roller 17 Arm 18 Inversion roller
Claims (4)
紙を正逆両方向に搬送可能に形成された用紙搬送手段
と，上記用紙の搬送経路に臨ませて設けられた画像入出
力手段とを備え，用紙の両面に対して画像の入出力を行
なうように構成された画像入出力装置において，反転部
に用紙を挟着搬送可能に形成してなる１対の上下ローラ
を正逆回転可能に設け，下ローラと同軸的にアームを回
動可能に設けると共に，このアームの自由端に反転ロー
ラを回転可能に設け，かつこの反転ローラをアームの回
動を介して前記上ローラと当接離脱可能に形成し，画像
入出力手段から反転部に搬送された用紙を表裏反転させ
て画像入出力手段に返送するように構成したことを特徴
とする画像入出力装置。1. A paper conveying means provided between a paper feeding portion and a reversing portion and capable of conveying paper in both forward and reverse directions, and an image input / output provided so as to face a paper conveying path. And an image input / output device configured to input / output images to / from both sides of a sheet, the pair of upper and lower rollers formed so that the sheet can be sandwiched and conveyed in the reversing unit. The arm is rotatably provided, the arm is rotatable coaxially with the lower roller, the reversing roller is rotatably provided at the free end of the arm, and the reversing roller is connected to the upper roller through the rotation of the arm. An image input / output device, which is formed so as to be able to come into contact with and detach from, and is configured so that a sheet conveyed from an image input / output unit to a reversing unit is turned upside down and returned to the image input / output unit.
の下側に保持し，上下ローラの正転により用紙を反転部
に搬送することを特徴とする請求項１記載の画像入出力
装置。2. The image input / output apparatus according to claim 1, wherein the arm and the reversing roller are held below the sheet conveying path, and the sheet is conveyed to the reversing unit by forward rotation of the upper and lower rollers.
ーラに近接若しくは当接させた状態に保持し，上下ロー
ラの逆転により用紙を反転することを特徴とする請求項
１記載の画像入出力装置。3. The image input according to claim 1, wherein the reversing roller is held in a state of being close to or in contact with the upper roller through the rotation of the arm, and the paper is reversed by reversing the upper and lower rollers. Output device.
態に保持し，上ローラの正転および用紙搬送手段の逆転
により反転した用紙を画像入出力手段に返送することを
特徴とする請求項１記載の画像入出力装置。4. The sheet which is held in a state where the reversing roller and the upper roller are in contact with each other, and the sheet which has been reversed by the forward rotation of the upper roller and the reverse rotation of the sheet conveying means is returned to the image input / output means. Item 1. The image input / output device according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3241629A JP2517808B2 (en) | 1991-09-20 | 1991-09-20 | Image input / output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3241629A JP2517808B2 (en) | 1991-09-20 | 1991-09-20 | Image input / output device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0577975A JPH0577975A (en) | 1993-03-30 |
| JP2517808B2 true JP2517808B2 (en) | 1996-07-24 |
Family
ID=17077167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3241629A Expired - Lifetime JP2517808B2 (en) | 1991-09-20 | 1991-09-20 | Image input / output device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2517808B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000051021A (en) * | 1999-01-18 | 2000-08-16 | 윤종용 | Paper guiding apparatus of printing device for both side printing |
-
1991
- 1991-09-20 JP JP3241629A patent/JP2517808B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0577975A (en) | 1993-03-30 |
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