JPH0616194B2 - Electrophotographic device - Google Patents
Electrophotographic deviceInfo
- Publication number
- JPH0616194B2 JPH0616194B2 JP57157167A JP15716782A JPH0616194B2 JP H0616194 B2 JPH0616194 B2 JP H0616194B2 JP 57157167 A JP57157167 A JP 57157167A JP 15716782 A JP15716782 A JP 15716782A JP H0616194 B2 JPH0616194 B2 JP H0616194B2
- Authority
- JP
- Japan
- Prior art keywords
- transfer material
- transfer
- unit
- feeding
- paper
- 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
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
- G03G15/65—Apparatus which relate to the handling of copy material
- G03G15/6502—Supplying of sheet copy material; Cassettes therefor
Description
【発明の詳細な説明】 本発明は電子写真複写装置等の電子写真装置に関し，特
に画像記録のための記録用紙たる転写材を収容し給送す
る給紙部の改良に関するものである。特にコンパクトに
構成された電子写真装置に有効である。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic apparatus such as an electrophotographic copying apparatus, and more particularly to an improvement of a paper feeding unit that accommodates and feeds a transfer material that is a recording paper for image recording. It is particularly effective for a compact electrophotographic apparatus.
一般に電子写真複写装置においては，絶縁性光導電体を
感光体として用いた電荷保持体上にコロナ帯電と光照射
によって原稿の画像に対応する静電潜像を形成させ，ト
ナー現像剤にて現像することにより可視像を形成せしめ
る。この電荷保持体上のトナー像は，コロナ放電かバイ
アスローラ等による電気的転写法，あるいは押圧または
加熱等の物理的手段等により，複写材例えば転写紙の上
に転写される。そして転写紙上に転写されたトナー像
は，通常の加熱手段により転写紙上に定着されて画像形
成工程は完了する。一方，転写後に感光体上に残存する
残留電荷およびトナー残像は，除電，クリーニング工程
により除去され，再び前記サイクルを繰り返す。Generally, in an electrophotographic copying apparatus, an electrostatic latent image corresponding to an image of an original is formed on a charge carrier using an insulating photoconductor as a photoconductor by corona charging and light irradiation, and is developed with a toner developer. By doing so, a visible image is formed. The toner image on the charge carrier is transferred onto a copying material, such as a transfer paper, by a corona discharge, an electric transfer method using a bias roller or the like, or a physical means such as pressing or heating. Then, the toner image transferred on the transfer paper is fixed on the transfer paper by the usual heating means, and the image forming process is completed. On the other hand, the residual charges and the residual toner image remaining on the photoconductor after the transfer are removed by a charge removing and cleaning process, and the above cycle is repeated again.
第１図は従来の複写装置における一実施例を示す概略断
面図である。図において，この複写装置は原稿台移動型
であり，まず，原稿台に載置された原稿が露光走査され
感光体上に潜像が形成される。Ｐで示した破線は給紙経
路を示し，P1はカセット１より給送される転写紙を示
す。FIG. 1 is a schematic sectional view showing an embodiment of a conventional copying machine. In the figure, this copying apparatus is of a movable original platen type. First, the original document placed on the original platen is exposed and scanned to form a latent image on the photoconductor. The broken line indicated by P indicates the paper feed path, and P1 indicates the transfer paper fed from the cassette 1.
カセット給紙の場合には，カセット１内に所定寸法にカ
ットされた転写紙を積層状に堆積して収納し，複写装置
の本体に矢印方向即ち給紙方向へ挿入する。コピー釦を
押すと第一給紙ローラ２（給紙部材）が回転を始める。
これよりカセット１内の最上層の一枚の転写紙は，上記
第一給紙ローラ２により送り出された後，互いに圧接し
て回転する第二給紙ローラ４（転写部搬送ローラ）に至
り，原稿台の移動に同期して，該ローラ４により挟圧さ
れて給送され，前記の帯電，露光，現像の各複写工程に
より可視トナー像を担持する感光体５の表面に到達す
る。ここで転写紙Ｐ1は転写装置６により前記トナー像
が転写される。更に転写紙は給送されて分離手段７によ
り感光体５の表面から分離され搬送され，排出手段９に
より装置外に排出される。In the case of cassette feeding, transfer sheets cut to a predetermined size are stacked and stored in the cassette 1 and inserted into the main body of the copying machine in the arrow direction, that is, the feeding direction. When the copy button is pressed, the first paper feed roller 2 (paper feed member) starts to rotate.
As a result, one transfer sheet in the uppermost layer in the cassette 1 is sent out by the first sheet feeding roller 2 and then reaches the second sheet feeding roller 4 (transfer section conveying roller) which rotates in pressure contact with each other. In synchronism with the movement of the platen, the rollers 4 clamp the paper and feed it, and reach the surface of the photoconductor 5 carrying a visible toner image by the copying, charging, exposing and developing steps. Here, the toner image is transferred onto the transfer paper P 1 by the transfer device 6. Further, the transfer paper is fed, separated from the surface of the photoconductor 5 by the separating means 7 and conveyed, and discharged by the discharging means 9 to the outside of the apparatus.
このような複写装置において，上記転写紙を収容して給
送する給紙装置は，多数の転写紙を積層状に堆積して収
納する転写材スタック手段と，記録を必要とする時に該
転写材スタック手段から転写紙を一枚ずつ取り出して制
御して給送し記録部へ送り込み記録終了後に装置外に排
出する給送装置とから構成される。また上記転写材スタ
ック手段としては，給紙カセット形式と給紙皿形式（い
わゆるテーブル式）との二形式が主に用いられている。In such a copying apparatus, a paper feeding device for accommodating and feeding the transfer paper includes a transfer material stacking means for accumulating and accommodating a large number of transfer papers in a laminated form, and the transfer material when recording is required. It is composed of a transfer device that takes out the transfer sheets one by one from the stacking means, controls and feeds them, sends them to the recording portion, and discharges them out of the device after the recording is completed. Further, as the transfer material stacking means, two types of a sheet feeding cassette type and a sheet feeding tray type (so-called table type) are mainly used.
給紙カセット形式とは，多数枚の転写材としての転写紙
を積層状にして収納する箱状のケースを複写装置本体か
ら着脱可能となし，転写紙の補充装填，転写紙サイズの
変更，異種転写紙との変更装填等を行うときには，上記
給紙カセットを複写装置外に取り出して行ない，その後
に該複写装置の転写材給紙位置に装填して記録を開始す
る。この給紙カセット形式は，給紙カセットの先端部を
装置の開口部に挿入して装着するもので，給紙カセット
の挿入方向は第１図のように転写紙の給送方向と同方向
で装置の側面に突出する。この種の給紙カセット形式は
複写装置本体を小型に出来る利点を有しているが，給紙
カセットは装置の側方に突出し，更にその着脱には余分
な側方空間を必要とし，その上給紙カセットを着脱する
ための操作性は悪い。The paper feed cassette type means that a box-shaped case for accommodating a large number of transfer sheets as a transfer material in a stacked state is detachable from the copying machine body, replenishment and loading of transfer sheets, change of transfer sheet size, and different types. When changing and loading the transfer paper, etc., the above-mentioned paper feed cassette is taken out of the copying machine, and thereafter, it is loaded in the transfer material feeding position of the copying machine to start recording. In this paper feed cassette type, the front end of the paper feed cassette is inserted into the opening of the apparatus and mounted, and the insertion direction of the paper feed cassette is the same as the transfer paper feeding direction as shown in FIG. It projects to the side of the device. This type of paper feed cassette type has the advantage that the copying machine main body can be made compact, but the paper feed cassette protrudes to the side of the device and further requires an extra side space for attachment and detachment. The operability for attaching and detaching the paper cassette is poor.
次に給紙皿形式とは，一般には装置の前面又は側面の遮
蔽扉を開き，次に装置内の給紙皿（給紙テーブルとも言
う）を所定位置まで引き出して，給紙皿上で転写紙の補
充装填，転写紙サイズの変更，異種転写紙との変更装填
等を行ない，その後に再び前記給紙皿を装置内の所定の
転写紙給紙位置に収納し，遮蔽扉を閉じて記録を開始す
るものである。この種の給紙皿形式は，一個又は複数個
の給紙皿を装置本体内と接続状態なして用い，転写紙位
置決めガイドと可動ガイドにより各種サイズの転写紙を
所定位置に設定する。そして装置本体内に装着後，遮光
保安のため遮光扉を要し，転写紙の補充等を行う都度，
この遮光扉を開かねばならず，その上装置内部の各部分
が露出するので操作上危険を生ずることがある。Next, the paper tray type generally means opening the shielding door on the front or side of the device, then pulling out the paper tray in the device (also called the paper feeding table) to a predetermined position, and transferring it on the paper tray. The paper is replenished and loaded, the transfer paper size is changed, the different transfer paper is changed and loaded, and then the paper tray is again stored in a predetermined transfer paper feed position in the apparatus, and the shielding door is closed to record. Is what starts. In this type of paper feed tray type, one or a plurality of paper feed trays are used without being connected to the inside of the apparatus main body, and transfer papers of various sizes are set at predetermined positions by a transfer paper positioning guide and a movable guide. And after mounting in the main body of the device, a light-shielding door is required for light-shielding and security, and every time transfer paper is replenished,
This light-blocking door must be opened, and in addition, each part inside the device is exposed, which may be dangerous in operation.
尚上記の給紙カセット又は給紙皿による転写材スタック
手段に積層状に収容された転写紙とは別に，転写紙を複
写装置外から一枚ずつ挿入して複写を行なういわゆる手
差し給紙形式を，前記スタック手段より何れかの給紙形
式と併用することがある。Incidentally, in addition to the transfer papers stacked in the transfer material stack means by the above-mentioned paper feed cassette or paper feed tray, the transfer papers are inserted one by one from the outside of the copying apparatus to perform copying, that is, a so-called manual paper feeding type. In some cases, the stacking means may be used in combination with any of the paper feeding methods.
以上のように従来の複写装置においては，スタック給紙
の二形式に関して手差し給紙との関連で次の欠点を有し
ている。給紙カセット形式では，給紙カセットは装置本
体の側方に突出し，このため側方空間を余分に必要と
し，手差し用案内板を取りつけると更に給紙カセットの
着脱操作性は悪くなる。給紙皿形式では，一般に床置き
形式の大型複写装置に適用されるのは普通でそのスタッ
ク手段及び給紙路は床に近い所に設けられており，手差
し給紙経路をスタック手段からの給紙路を兼用しにく
い。更に特公昭50-29651号公報に開示されるように給紙
装置55の本体手前より挿入時に手動で給紙ローラを持上
げなければならず，わずらわしさがあった。As described above, the conventional copying machine has the following drawbacks in relation to the manual feeding of two types of stack feeding. In the paper feed cassette type, the paper feed cassette protrudes to the side of the main body of the apparatus, which requires an extra lateral space, and if a manual guide plate is attached, the operability of attaching and detaching the paper feed cassette becomes worse. The paper tray type is generally applied to a floor-standing type large copying machine, and its stacking means and paper feeding path are provided near the floor, and the manual feeding path is fed from the stacking means. It is difficult to combine the paper paths. Furthermore, as disclosed in Japanese Patent Publication No. 50-29651, the paper feed roller must be manually lifted when it is inserted from the front of the main body of the paper feed device 55, which is troublesome.
又，一般的に装置側面より転写紙収納手段を挿入する
際，自動的に給紙ローラ等が上下されるごときものは多
数開示されているが，前記の例も含め，特に前面より挿
入する際にあたっても給送部材と転写紙収納手段との干
渉を考慮したものはなかった。Further, generally, when inserting the transfer paper accommodating means from the side of the apparatus, there are many disclosures such as a paper feeding roller being automatically moved up and down. However, including the above example, especially when inserting from the front. Even in this case, there was nothing that considered the interference between the feeding member and the transfer paper storage means.
本発明は上記の欠点を改良するためになされたものであ
る。即ち， (1)感光体と，該感光体の周囲にそれぞれ配置された静
電潜像形成手段，トナー画像を形成する現像手段，トナ
ー画像を転写材に転写する転写手段及びクリーニング手
段と，電子写真装置の一方の側の側壁に形成された転写
材の排出口近辺に配置され，転写材に転写されたトナー
画像を定着する定着部と，転写材を収納する転写材スタ
ック手段とを有する電子写真装置において，前記転写材
スタック手段から前記転写手段に到る転写材搬送部が，
前記転写材スタック手段から転写材を一枚づつ分離して
給送する給送手段であるとともに，分離して給送された
転写材をＵターン反転させる転写材反転部を形成する第
１給送手段と，前記感光体と前記転写材反転部との間に
配置され，前記転写材反転部から給送された転写材を前
記感光体と前記転写手段の間に向けて給送する第２給送
手段とを有し，前記第２給送手段より前記定着部までの
転写材の搬送路の直下に前記転写材スタック手段を配置
し，前記電子写真装置の前記スタック手段の配置位置よ
りも上方の部分の前面を開放するための扉を開閉可能に
設け，前記転写材スタック手段を，転写材の給送方向と
は直角方向である前記電子写真装置前方に前記扉の開閉
とは独立して引き出せるように構成し，且つ，前記転写
材反転部を構成する転写材案内部材の一部であって，転
写材を上方に案内する部分を前記排出口が形成された前
記一方の側壁と反対側の他方の側壁を構成する構造体に
取付けたことを特徴とする電子写真装置，および (2)感光体と，該感光体の周囲にそれぞれ配置された静
電潜像形成手段，トナー画像を形成する現像手段，トナ
ー画像を転写材に転写する転写手段及びクリーニング手
段と，電子写真装置の一方の側の側壁に形成された転写
材の排出口近辺に配置され，転写材に転写されたトナー
画像を定着する定着部と，転写材を収納する転写材スタ
ック手段とを有する電子写真装置において，前記転写材
スタック手段から前記転写手段に到る転写材搬送部が，
前記転写材スタック手段から転写材を一枚づつ分離して
給送する第１給送手段と，前記第１給送手段から給送さ
れた転写材がＵターン反転される転写材反転部であっ
て，後端が前記第１給送手段に近接して配置された転写
材反転部と，前記感光体と前記転写材反転部との間に配
置され，前記転写材反転部から給送された転写材を前記
感光体と前記転写手段との間に向けて給送する第２給送
手段とを有し，前記第２給送手段より前記定着部までの
転写材の搬送路の直下に前記転写材スタック手段を配置
し，前記電子写真装置の前記スタック手段の配置位置よ
りも上方の部分の前面を開放するための扉を開閉可能に
設け，前記転写材スタック手段を，転写材の給送方向と
は直角方向である前記電子写真装置前方に前記扉の開閉
とは独立して引き出せるように構成し，且つ，前記転写
材反転部を構成する転写材案内部材の一部であって，転
写材を上方に案内する部分を前記排出口が形成された前
記一方の側壁と反対側の他方の側壁を構成する構造体に
取付けたことを特徴とする電子写真装置とを提供するこ
とである。The present invention has been made to remedy the above drawbacks. That is, (1) a photoconductor, an electrostatic latent image forming unit arranged around the photoconductor, a developing unit for forming a toner image, a transfer unit for transferring the toner image to a transfer material, a cleaning unit, and an electronic unit. An electronic device having a fixing unit arranged near a discharge port for a transfer material formed on a side wall of one side of a photographic device, for fixing a toner image transferred to the transfer material, and a transfer material stack means for accommodating the transfer material. In the photographic apparatus, the transfer material transporting section from the transfer material stack means to the transfer means is
First feeding for forming a transfer material reversing unit for separating and transferring the transfer materials one by one from the transfer material stacking means, and forming a transfer material reversing portion for reversing the separated and fed transfer materials by U-turns And a second feeding unit that is disposed between the photoconductor and the transfer material reversing unit and that feeds the transfer material fed from the transfer material reversing unit toward between the photoconductor and the transfer unit. A transfer means, the transfer material stacking means is disposed immediately below a transfer material transporting path from the second feeding means to the fixing portion, and the transfer material stacking means is disposed above the stacking means of the electrophotographic apparatus. A door for opening the front surface of the portion is provided so as to be openable and closable, and the transfer material stacking means is provided in front of the electrophotographic apparatus, which is a direction perpendicular to the transfer material feeding direction, independently of the opening and closing of the door. It is constructed so that it can be pulled out, and the transfer material reversing portion is constructed. A part of the transfer material guide member for guiding the transfer material upward is attached to a structure that constitutes the one side wall opposite to the one side wall in which the discharge port is formed. And (2) a photoconductor, an electrostatic latent image forming means arranged around the photoconductor, a developing means for forming a toner image, a transfer means for transferring the toner image to a transfer material, and a cleaning. Unit, a fixing unit disposed near a transfer material discharge port formed on one side wall of the electrophotographic apparatus, for fixing the toner image transferred to the transfer material, and a transfer material stack means for containing the transfer material. In the electrophotographic apparatus having: a transfer material transporting section from the transfer material stack means to the transfer means,
A first feeding unit that separates and feeds the transfer materials one by one from the transfer material stacking unit, and a transfer material reversal unit that reverses the U-turn of the transfer material fed from the first feeding unit. And the trailing end is disposed between the transfer material reversing portion arranged near the first feeding means and the photoconductor and the transfer material reversing portion, and is fed from the transfer material reversing portion. A second feeding unit that feeds the transfer material between the photoconductor and the transfer unit, and the transfer member is provided directly below the transfer material transport path from the second feeding unit to the fixing unit. A transfer material stack means is arranged, and a door for opening the front surface of a portion above the arrangement position of the stack means of the electrophotographic apparatus is provided so as to be openable and closable, and the transfer material stack means is provided for feeding the transfer material. It is a direction that is perpendicular to the direction and is pulled out independently of the opening and closing of the door in front of the electrophotographic device. And a part of the transfer material guide member constituting the transfer material reversing part, which guides the transfer material upward, opposite to the one side wall where the discharge port is formed. And an electrophotographic apparatus characterized in that the electrophotographic apparatus is attached to a structure constituting the other side wall.
本発明において，転写材スタック手段を第２給送手段よ
り定着部までの転写材の搬送路の直下に配置するとは，
第２図，第４図のように第２給送部材より定着部までの
転写材の搬送路の下方であって，少なくとも第２給送手
段の直下と定着部の直下及びその間に，同一の転写材ス
タック手段が存在することをいう。In the present invention, arranging the transfer material stacking means immediately below the transfer material conveying path from the second feeding means to the fixing portion means
As shown in FIGS. 2 and 4, below the transfer material conveying path from the second feeding member to the fixing unit, at least immediately below the second feeding unit and immediately below and between the fixing unit, and at the same position. The transfer material stack means is present.
更に，電子写真装置本体の前面開閉扉とは別に，その下
方であって装置本体の正面下部に設けた開口部より，給
紙カセット又は給紙皿を挿入設置して給紙を可能になし
た本発明の電子写真装置は，上記前面開閉扉を開閉する
ことなく給紙を可能になしたものであり，給紙操作は容
易迅速であり，かつ給紙以外の装置内部の部品に触れる
こともないので安全で，非常にコンパクトに装置を構成
することができる。更に転写材収納手段の挿入時に転写
材と給送部材との干渉なくスムーズ，安全確実に操作可
能にできる。Further, in addition to the front opening / closing door of the main body of the electrophotographic apparatus, a paper feeding cassette or a paper feeding tray is inserted and installed through an opening provided below the front opening / closing door of the main body of the apparatus to enable paper feeding. The electrophotographic apparatus of the present invention enables paper feeding without opening and closing the front opening / closing door. The paper feeding operation is easy and quick, and parts inside the apparatus other than paper feeding can be touched. Since it is not present, it is safe and the device can be constructed very compactly. Further, when the transfer material accommodating means is inserted, the transfer material and the feeding member can be operated smoothly, safely and reliably without interference.
以下，図面の実施例に従い本発明を具体的に詳細に説明
する。Hereinafter, the present invention will be described in detail with reference to the embodiments of the drawings.
第２図は本発明による電子写真装置の一実施例を示す断
面図である。図において透明ガラスより成る原稿台20の
上に載置された原稿Ｄは原稿台20と照明装置の光源21の
露光によって相対的な移動を行う操作露光により照明さ
れ，原稿面の画像の反射光は，集束性光伝体アレイ（例
えばセルフォックスレンズ，日本板障子製）のような光
学素子22により感光体である光導電性感光ドラム23の表
面上に結像する。一方，上記感光ドラム23の外周には帯
電器24，現像器25，転写部26，矢印方向に移動可能なバ
イアスローラからなる分離部27，除電部28，クリーニン
グ部29等（記録手段）が固定配置されている。また30は
定着部である。電子写真装置の画像形成プロセスは以下
のように行われる。感光体23上にコロナ帯電器24と光源
21の露光操作によって画像に対応する静電潜像を光学系
22を介して形成する。更に，現像器25により感光体23上
にトナー画像を形成し，給紙カセット31の中板37に押圧
された転写紙Ｐ1（転写材）は第１給紙ローラ39（第１
給送手段）の回転により原稿像を同期して給送され転写
部26にて転写材にトナー画像を転写し，分離部26にて分
離した後転写材を定着部30にて定着する。感光体上に残
留したトナーは，除電部28で除電されクリーニング部29
でクリーニングされる。FIG. 2 is a sectional view showing an embodiment of the electrophotographic apparatus according to the present invention. In the figure, a document D placed on a document table 20 made of transparent glass is illuminated by an operation exposure in which the document table 20 and a light source 21 of an illuminating device move relative to each other, and the reflected light of the image on the document surface is reflected. Is imaged on the surface of a photoconductive photosensitive drum 23, which is a photoconductor, by an optical element 22 such as a converging photoconductor array (for example, Selfox lens, manufactured by Nippon Sheet Shoji). On the other hand, a charger 24, a developing unit 25, a transfer unit 26, a separating unit 27 composed of a bias roller movable in the arrow direction, a charge eliminating unit 28, a cleaning unit 29, etc. (recording means) are fixed to the outer periphery of the photosensitive drum 23. It is arranged. Further, 30 is a fixing unit. The image forming process of the electrophotographic apparatus is performed as follows. Corona charger 24 and light source on photoconductor 23
An optical system that creates an electrostatic latent image corresponding to the image by the exposure operation of 21
Form through 22. Further, a toner image is formed on the photoconductor 23 by the developing device 25, and the transfer sheet P 1 (transfer material) pressed against the middle plate 37 of the sheet feeding cassette 31 is the first sheet feeding roller 39 (first sheet).
The original image is fed in synchronism with the rotation of the feeding means), the toner image is transferred to the transfer material at the transfer portion 26, and the transfer material is fixed at the fixing portion 30 after being separated at the separating portion 26. The toner remaining on the photoconductor is neutralized by the neutralization unit 28 and the cleaning unit 29.
To be cleaned.
本発明のポイントである電子写真装置本体の下部には着
脱可能な給紙カセット31（又は引き出し可能な給紙皿）
が内蔵されていて，何れも装置本体内のガイドレール33
により，電子写真装置本体下部の前面（第２図の図面に
垂直な方向）に引き出し可能となっている。一般にコン
パクトに設計される卓上型複写装置には，給紙搬送にお
いて，ジャムの少ないいわゆるストレート搬送（給搬送
路がほぼ水平に直線状となっているもの）が好ましく，
多用されている。本発明はこの信頼性の高いストレート
搬送の小型複写装置を更にコンパクトにすべく，図の如
く装置上部と同幅の装置下部に少なくとも給送部材と転
写材スタック手段を複写装置の左右両脇に突出させずに
納め，これを装置上部の左右に伸びた給紙路の直下に設
け，該スタック手段から初めの給紙のみＵターン状に上
部の転写材転写部に送り出すように構成することによ
り，その後反転後の転写材を直線の給搬送路を進行させ
ることになる。給紙カセット31に積層状に収容した転写
紙Ｐ1が空になって補充を要するとき，又は転写紙のサ
イズを変更するときには，前記カセット31を転写紙の給
送方向と直交する装置の前方に引き出して操作する。At the bottom of the main body of the electrophotographic apparatus, which is the point of the present invention, a detachable paper feed cassette 31 (or a drawable paper feed tray) is provided.
Each has a built-in guide rail 33
Thus, it can be pulled out to the front surface of the lower part of the main body of the electrophotographic apparatus (direction perpendicular to the drawing of FIG. 2). Generally, for a desktop copying machine that is designed to be compact, it is preferable to use so-called straight conveyance (a feed conveyance path is substantially horizontal and linear) with few jams in feeding conveyance.
It is used a lot. According to the present invention, in order to further reduce the size of this highly reliable straight transfer type small copying machine, at least a feeding member and a transfer material stacking means are provided on the left and right sides of the copying machine at the lower part of the same width as the upper part of the copying machine. By storing it without projecting it, providing it directly below the paper feed path extending to the left and right of the upper part of the device, and sending only the first paper feed from the stacking means in a U-turn shape to the upper transfer material transfer part. After that, the transfer material after the reversal is advanced along the linear feeding / conveying path. When the transfer sheets P 1 stacked in the sheet feeding cassette 31 become empty and need to be replenished or when the size of the transfer sheet is changed, the cassette 31 is placed in front of the apparatus orthogonal to the transfer sheet feeding direction. Pull out to operate.
本発明の電子写真装置においては，給紙カセット31の操
作を全て前面で行えるので操作性は良好でかつ側面等に
余分なスペースを必要としない。特に，本発明では，感
光体，転写材スタック手段，第１給送手段，転写材反転
部，第２給送手段，定着部等を特定の配置にすることに
より，電子写真装置の横幅を転写材スタック手段の引き
出し方向の幅に極力近づけたため，装置の横方向のコン
パクト性を著しく改良したものである。In the electrophotographic apparatus of the present invention, since the operation of the paper feed cassette 31 can be performed entirely on the front surface, the operability is good and no extra space is required on the side surface or the like. Particularly, in the present invention, the lateral width of the electrophotographic apparatus is transferred by arranging the photoconductor, the transfer material stacking means, the first feeding means, the transfer material reversing portion, the second feeding means, the fixing portion, etc. in a specific arrangement. By making the width of the material stacking means as close as possible to the drawing direction, the lateral compactness of the apparatus is significantly improved.
本発明の電子写真装置においては，給紙カセット31の操
作を総て前面で行えるので操作性は良好でかつ側面等に
余分なスペースを必要としない。In the electrophotographic apparatus of the present invention, since the paper feeding cassette 31 can be operated entirely on the front surface, the operability is good and no extra space is required on the side surface or the like.
更に本発明のうち，第３図(A)の斜視図に示すように，
電子写真装置本体の下部であって，前記給紙カセット31
を収容する下部筐体34の上方に蝶番35を設けてある。実
施例では少なくとも内部に記録手段を有する（第２図で
示した）複写装置の上部筐体36の前面を遮蔽する前面扉
36を，下部筐体34のカセット31の引出装置とは別にこの
蝶番35を中心として前方に倒すことにより，装置内部前
面を開放することができ，トラブル処理（例えば転写紙
のジャム処理（転写材搬送不良の処理等），保守点検，
修理，部品交換，清掃等を行うことができる。Further, in the present invention, as shown in the perspective view of FIG.
The lower part of the main body of the electrophotographic apparatus, and the paper feed cassette 31
A hinge 35 is provided above the lower housing 34 that houses the. In the embodiment, a front door that shields the front surface of the upper housing 36 of the copying apparatus (shown in FIG. 2) having at least a recording means inside is used.
The front surface of the inside of the device can be opened by tilting the 36 forward with the hinge 35 as a center separately from the drawer 31 of the cassette 31 of the lower housing 34, and trouble processing (for example, transfer paper jam processing (transfer material Handling of defective transportation, etc.), maintenance inspection,
Repairs, parts replacement, cleaning, etc. can be performed.
従って，電子写真装置の前面は機能的に二分割されてい
て，下部筐体34から挿入状態となっている給紙カセット
31を前面扉36の開閉に関係なく，独立して引き出して転
写紙P1の補充，交換を行うことができる。よって使用頻
度の多い転写補充交換時には，前面扉36を開く必要がな
く，操作は容易迅速であり，かつ装置内部に触れること
もなく安全である。また，前面扉36を開いた状態でも給
紙カセット31を引出すこともできるので，給紙トラブル
を生じたとき等で装置内部を点検する場合にも，作業性
が良好である。上部と下部との操作を別個に可能とした
事に加え，特に前述の如く図にて明示される如く給紙部
材と，原稿長さとほぼ同じ長さの転写材を収納可能な給
紙カセットの長さを下部装置より突出させずに上部装置
とほぼ同巾に納めて前面操作を可能としたことにより機
械自体のコンパクト化はもとより，複写装置に対するメ
ンテ・サービス時やユーザーの操作範囲の省スペース化
が同時にはかられ，特に利用者の操作範囲の省スペース
化を相乗した機械と操作機能との総合的コンパクト性の
効果がより使い易い機械として装置の機能を著しく向上
させた。第３図(B)は上記前面扉36と給紙カセット31と
を開放した状態をしめす側面図である。Therefore, the front surface of the electrophotographic apparatus is functionally divided into two parts, and the paper feed cassette is inserted from the lower housing 34.
Regardless of whether the front door 36 is opened or closed, the transfer sheet P1 can be replenished and replaced independently by pulling it out. Therefore, it is not necessary to open the front door 36 at the time of frequently used transfer replenishment and replacement, the operation is easy and quick, and it is safe without touching the inside of the apparatus. Further, since the paper feed cassette 31 can be pulled out even when the front door 36 is open, workability is good even when the inside of the apparatus is inspected when a paper feed trouble occurs. In addition to making it possible to operate the upper part and the lower part separately, in particular, as described above, a paper feed member and a paper feed cassette capable of accommodating a transfer material having a length substantially equal to the original length are provided. The length of the machine is kept almost the same as that of the upper machine without allowing the machine to protrude from the lower machine, and front operation is possible. Not only does the machine itself become more compact, but it also saves space during maintenance services for the copying machine and user operation range. At the same time, the overall compactness of the machine and the operating functions that synergize the space saving of the user's operating range has improved the function of the device as a machine that is easier to use. FIG. 3B is a side view showing a state in which the front door 36 and the paper feed cassette 31 are opened.
再び第２図において，給紙カセット31内の底部には，中
板37が内蔵されていて，その一端はカセット31に嵌合し
その点を中心として回動可能に設けられ，他端は筐体34
内の押上レバー38によって昇降自在となっている。給紙
カセット31を複写装置に設置した後上記押上レバー38
は，複写開始信号によってスイッチ，ソレノイド，カ
ム，レバー等（何れも不図示）によって給紙１枚毎に駆
動され回動して上記中板37を上昇させ（第２図の状態）
て中板37の転写紙Ｐ1を第一給紙ローラ39（第１給送手
段）の表面に所定圧力で圧接し，複写終了後または手差
し給紙開始時には信号入力により圧接を解除し，下降し
最初の状態に復帰するよう構成されている。Referring again to FIG. 2, a middle plate 37 is built in the bottom portion of the paper feed cassette 31, one end of which is fitted into the cassette 31 and is rotatable about that point, and the other end is a casing. Body 34
It can be raised and lowered by an internal push-up lever 38. After installing the paper feed cassette 31 in the copying machine, push up lever 38 above
Is driven and rotated by a copy start signal for each sheet by a switch, solenoid, cam, lever, etc. (all not shown) to raise the intermediate plate 37 (state of FIG. 2).
The transfer sheet P 1 of the intermediate plate 37 is pressed against the surface of the first paper feed roller 39 (first feeding means) with a predetermined pressure, and after the completion of copying or when the manual paper feed is started, the pressure contact is released by the signal input and the descent is performed. Then, it is configured to return to the initial state.
上記給紙カセット31の中板37の先端部付近には第一給紙
ローラ39が回転自在に設置されていて，不図示のメイン
モータにより駆動され，給紙方向に回転可能となってい
る。また上記第一給紙ローラ39の表面は摩擦係数の大き
な材料例えば合成ゴム、天然ゴム，プラスチック等の材
料又は特殊加工によって形成されている。給紙時にはカ
セット31および中板37の上に積層状に堆積されている転
写紙Ｐ1は上記第一給紙ローラ39と中板37の押圧力によ
り挟持され，上記第一給紙ローラ39の回転による第一給
紙ローラ39の表面摩擦力により該ローラ39に接触する転
写紙１枚のみを分離させて給送する。A first paper feed roller 39 is rotatably installed near the tip of the middle plate 37 of the paper feed cassette 31, and is driven by a main motor (not shown) to be rotatable in the paper feed direction. The surface of the first paper feed roller 39 is formed of a material having a large friction coefficient, for example, a material such as synthetic rubber, natural rubber or plastic, or a special process. At the time of sheet feeding, the transfer sheets P 1 stacked on the cassette 31 and the intermediate plate 37 are sandwiched by the pressing force of the first sheet feeding roller 39 and the intermediate plate 37, and the transfer sheet P 1 of the first sheet feeding roller 39 moves. Due to the surface frictional force of the first paper feed roller 39 due to the rotation, only one sheet of transfer paper contacting the roller 39 is separated and fed.
上記第一給紙ローラ39の給紙経路（転写材反転部の一
部）の近傍には該ローラ39の表面と一定間隔を保って対
向している円筒状のガイド板40が設けられている。該ロ
ーラ39と該ガイド板40が転写材反転部の転写材案内部を
形成する。該ガイド板40は第２図のように本発明の電子
写真装置本体の側壁（側壁を構成する構造体を含む。）
に取り付けられている。給紙時には転写紙Ｐ1は，給紙
カセット31の中板37と第一給紙ローラ39の圧接点から給
送され始め，図の如く上部と下部との間に仕切板を通過
し，更に転写材反転部である該ローラ39と上記ガイド板
40の間隙を通って，次の給紙位置に進行する。A cylindrical guide plate 40 facing the surface of the first paper feed roller 39 (a part of the transfer material reversing portion) is provided near the surface of the roller 39 at a constant interval. . The roller 39 and the guide plate 40 form a transfer material guide portion of the transfer material reversing portion. The guide plate 40 is a side wall of the main body of the electrophotographic apparatus of the present invention as shown in FIG. 2 (including a structure constituting the side wall).
Is attached to. At the time of sheet feeding, the transfer sheet P 1 begins to be fed from the pressure contact between the middle plate 37 of the sheet feeding cassette 31 and the first sheet feeding roller 39, passes the partition plate between the upper and lower portions as shown in the figure, and The roller 39, which is the transfer material reversing portion, and the guide plate.
Proceed to the next paper feed position through the gap of 40.
上記第一給紙ローラ39の上方には従動ローラ41が所定圧
力で上記第一給紙ローラ39の表面に圧接している。また
その右方には他の転写紙を電子写真装置本体の外部よ
り，スタック手段（31）から感光体（23）に最も近い第
２給送手段（44）までの転写材搬送路へ，一枚ずつ手差
しすることにより複写するための給紙いわゆる手差し給
紙のための所定開口寸法を有する開口部42があり，その
更に外方には上記手差し給紙用の一枚の転写紙Ｐ２を載
せて挿入するための手差し案内板43が電子写真装置本体
に取り付けられている。尚，前記開口部42の一部にはマ
イクロスイッチ等の検出スイッチＳが取り付けられてい
て，転写紙Ｐ2の挿入を検知して手差し給紙による複写
開始信号を出力する。A driven roller 41 is pressed against the surface of the first paper feed roller 39 with a predetermined pressure above the first paper feed roller 39. On the right side, another transfer paper is transferred from the outside of the electrophotographic apparatus main body to the transfer material conveying path from the stacking means (31) to the second feeding means (44) closest to the photoconductor (23). There is an opening 42 having a predetermined opening size for so-called manual feeding, in which paper is manually fed for copying by hand, and one transfer sheet P2 for manual feeding is placed outside thereof. A manual feed guide plate 43 for inserting the device is attached to the main body of the electrophotographic apparatus. A detection switch S such as a micro switch is attached to a part of the opening 42 to detect the insertion of the transfer paper P 2 and output a copy start signal by manual paper feeding.
上記第一給紙ローラ39の左方には，転写部搬送ローラで
ある一対の第二給紙ローラ44（第２給送手段）が設けら
れている。その下方のローラはメインモータの駆動力に
より回転され，その外周速度は前記第一給紙ローラ39の
速度とほぼ等しい。44の上方のローラは従動ローラであ
って，上記の下方のローラに所定圧力で圧接しながら従
動回転する。転写紙Ｐ1又はＰ2は，この第二給紙ローラ
44により給送されて感光ドラム23の方向に搬送される。
尚，該第二給紙ローラ44の左方および右方にはそれぞれ
上下一対をなすガイド板45および46があり，転写紙はそ
の上下板間の間隙を通って案内される。To the left of the first paper feed roller 39, there is provided a pair of second paper feed rollers 44 (second feeding means) which are transfer portion transport rollers. The roller therebelow is rotated by the driving force of the main motor, and the peripheral speed thereof is substantially equal to the speed of the first paper feed roller 39. The upper roller of 44 is a driven roller and rotates while being pressed against the lower roller with a predetermined pressure. The transfer paper P 1 or P 2 is the second paper feed roller.
It is fed by 44 and is conveyed toward the photosensitive drum 23.
There are a pair of upper and lower guide plates 45 and 46 on the left and right sides of the second paper feed roller 44, and the transfer paper is guided through the gap between the upper and lower plates.
また分離部27と定着部30との間にはガイド板46が，定着
部30と排紙ローラ48との間にはガイド板47がそれぞれ設
けられ転写後の転写紙を所定方向に案内している。前記
第２図等に示された仕切板により上部筐体に配置されて
いる現像機25やクリーニング部29よりのトナー飛散や従
動ローラ41や第２給紙ローラ44から定着部排出部に至る
転写紙ガイド板46等についた紙粉等がこの下部筐体内に
入りこみそこに配置されている給紙カセット31上の転写
紙P1上に直接落下する事を防止する。A guide plate 46 is provided between the separating unit 27 and the fixing unit 30, and a guide plate 47 is provided between the fixing unit 30 and the paper discharge roller 48 to guide the transfer paper after transfer in a predetermined direction. There is. By the partition plate shown in FIG. 2 and the like, the toner is scattered from the developing device 25 and the cleaning unit 29 arranged in the upper housing, and the transfer from the driven roller 41 and the second paper feed roller 44 to the fixing unit discharge unit is performed. It is prevented that the paper dust or the like attached to the paper guide plate 46 and the like enters the lower housing and directly drops onto the transfer paper P1 on the paper feeding cassette 31 arranged there.
本発明において，電子写真装置は，スタッー手段を有す
る下部に対してスタッカー手段の上方部を上部という
が，明確に上部と下部が区別されない態様を含むもので
ある。In the present invention, the electrophotographic apparatus includes the upper portion of the stacker means as the upper portion with respect to the lower portion having the stacker means, but includes a mode in which the upper portion and the lower portion are not clearly distinguished.
以上が本発明による記録装置の構成概要である。以上の
説明は，電子写真装置より外部に取り外して着脱可能な
給紙カセット31によって説明したが，装置内に接続して
引き出し可能な給紙皿を用いても，給紙動作は全く同様
である。The above is the outline of the configuration of the recording apparatus according to the present invention. Although the above description has been made with reference to the paper feed cassette 31 that is detachable from the electrophotographic apparatus and detachable from the electrophotographic apparatus, the paper feed operation is exactly the same even if a paper feed tray that can be connected to the apparatus and pulled out is used. .
次に本発明の電子写真装置による手差し給紙の動作につ
いて説明する。先ず，所要の転写紙Ｐ2を手差し案内板4
3上の所定位置に置き，転写紙Ｐ2を該案内板43を滑らせ
ながら電子写真装置本体の開口部42に挿入し，更に前記
第一給紙ローラ39と従動ローラ41とが圧接する位置へ送
り込む。これにより開口部42の一部に設けられたマイク
ロスイッチ等のスイッチ手段Ｓが所定時間以上ONされる
とこの出力により第一給紙ローラ39が回転され手差しに
よる転写紙Ｐ2は，該ローラ39と従動ローラ41によって
手差しによる転写紙Ｐ2は，該ローラ39と従動ローラ41
によって圧接給送されて第二給紙ローラ44に至る。転写
紙P2は該ローラ44によって給送されて同期して回転する
感光ドラム23に至る。Next, a manual sheet feeding operation by the electrophotographic apparatus of the present invention will be described. First, insert the required transfer paper P 2 into the manual feed guide plate 4
3, the transfer paper P 2 is inserted into the opening 42 of the main body of the electrophotographic apparatus while sliding the guide plate 43, and the first paper feed roller 39 and the driven roller 41 are pressed against each other. Send to. As a result, when the switch means S such as a micro switch provided in a part of the opening 42 is turned on for a predetermined time or longer, the first paper feed roller 39 is rotated by this output and the manually fed transfer paper P 2 is The transfer sheet P 2 is manually fed by the driven roller 41 and the driven roller 41.
It is pressure-contacted and fed to reach the second paper feed roller 44. The transfer sheet P2 is fed by the roller 44 and reaches the photosensitive drum 23 which rotates in synchronization.
以下スタック給紙の場合と同様なプロセスを経て複写物
を機外へ排出することになる。尚，中板37が常に上方に
付勢されている形式では手差し給紙時にスタック部から
給紙を遮断する手段の一例として，手差し案内板を軸回
転可能な形式となし，この可動案内板はスタック給紙時
には下方に倒して電子写真装置内に収納しておき，手差
し給紙時には該可動案内板を引き起こして固定すること
により前記押上げレバー38の先端部を下降させて転写紙
Ｐ1側からの給紙を不可能になすことが考えられる。あ
るいは逆に前記押上レバー38を押し下げることにより前
記手差し案内板を持ち上げる連動機構によって，スタッ
ク給紙から手差し給紙へ切換可能とすることも考えられ
る。After that, the copy is discharged to the outside of the machine through the same process as in the case of stack feeding. In the type in which the middle plate 37 is always urged upward, as an example of means for interrupting the sheet feeding from the stack portion during manual feeding, the manual feeding guide plate is of a type in which the manual rotation guide plate can be rotated. At the time of stack feeding, the paper is tilted downward and stored in the electrophotographic apparatus, and at the time of manual feeding, the movable guide plate is raised and fixed to lower the tip end portion of the push-up lever 38 to lower the transfer paper P 1 side. It may be impossible to feed paper from the Alternatively, conversely, it is conceivable to switch from stack feeding to manual feeding by an interlocking mechanism that raises the manual feeding guide plate by pushing down the push-up lever 38.
第４図は本発明による他の実施例を示す複写装置の断面
図である。図において第一給紙ローラ39の周辺に従動ロ
ーラ50を設け，上記ローラ39と圧接して従動回転可能と
なした。51は給紙カセット又は給紙皿等のスタック手段
からの転写紙Ｐ1を引き出す送り出しローラで，スタッ
ク手段最上面と圧接及びその解除が適宜行われる。中板
37はカセット31の装着後は上方に付勢される。そしてス
タック部からの給紙時には，コピー釦を押すと送り出し
ローラ51（第１給送手段）が回転して積層状になってい
る転写紙Ｐ1のうち最上層の一枚のみを引き出して，第
一給紙ローラ39と従動ローラ50とが圧接する位置へ給送
する。以降の給紙動作は前述と同様である。また第４図
の開口部42には手差し給紙による複写開始スイッチ手段
の実施例を示す。図においてスイッチＳ′は非接触スイ
ッチの一種で，透過光型のフォトカプラーである。手差
し給紙時には転写紙Ｐ2を手差し案内板43に載せて開口4
2内に挿入すると，上記スイッチＳ′は透過光遮断を検
知して第一給紙ローラ39を回転させ，給紙複写を開始す
る。尚上記スイッチＳ′は反射型フォトカプラでもよ
い。またその他静電容量型の種々の非接触スイッチの利
用も可能である。これら非接触スイッチの利用も可能で
ある。これら非接触スイッチは前記マイクロスイッチに
比して転写紙P2を傷付けることはなく，接点調整や故障
等の弊害も傷つけることはなく，接点調整や故障の弊害
もすくない。FIG. 4 is a sectional view of a copying machine showing another embodiment according to the present invention. In the figure, a driven roller 50 is provided around the first paper feed roller 39, and it is possible to rotate by being pressed against the roller 39. A feeding roller 51 pulls out the transfer sheet P 1 from the stacking means such as a paper feeding cassette or a paper feeding tray, and presses the uppermost surface of the stacking means and releases it. Middle plate
37 is urged upward after the cassette 31 is mounted. Then, at the time of feeding from the stack portion, when the copy button is pressed, the feeding roller 51 (first feeding means) is rotated to pull out only one of the uppermost layers of the transfer sheets P 1 which are laminated, The sheet is fed to a position where the first sheet feeding roller 39 and the driven roller 50 are in pressure contact with each other. The subsequent sheet feeding operation is the same as described above. In the opening 42 of FIG. 4, an embodiment of a copy start switch means by manual paper feeding is shown. In the figure, the switch S'is a kind of non-contact switch and is a transmitted light type photo coupler. When manually feeding, place the transfer paper P 2 on the manual feed guide plate 43 and open the opening 4
When the switch S'is inserted, the switch S'detects blocking of transmitted light and rotates the first paper feed roller 39 to start paper feed copying. The switch S'may be a reflective photocoupler. In addition, it is also possible to use various electrostatic capacitance type non-contact switches. It is also possible to use these non-contact switches. These non-contact switches do not damage the transfer paper P2 as compared with the above-mentioned micro switch, do not damage the adverse effects such as contact adjustment and failure, and have less adverse effects such as contact adjustment and failure.
第５図は更に他の実施例を示す電子写真装置の斜視図で
ある。図において，前面扉56は電子写真装置の前面と右
側面の一部を一体にして覆い，装置後部の蝶番57によっ
て開閉自在となっている。この形式によれば，前面扉56
を開放することにより斜線で示した前面および右側面を
一挙に開くことができ，装置内部の点検修理作業が容易
になる。また前面扉56は開放時に右側方に回動している
ため，装置前面より作業性が良好である。FIG. 5 is a perspective view of an electrophotographic apparatus showing still another embodiment. In the figure, the front door 56 integrally covers the front surface and a part of the right side surface of the electrophotographic apparatus, and can be opened and closed by a hinge 57 at the rear of the apparatus. According to this format, the front door 56
By opening the, the front and right sides shown by the diagonal lines can be opened all at once, facilitating inspection and repair work inside the equipment. Further, since the front door 56 is rotated to the right when opened, the workability is better than that of the front surface of the device.
以上の説明で明らかなように，本発明においては，多数
枚の転写紙を積層状に収容する給紙カセット又は給紙皿
は，電子写真装置本体の前面下部に設けた開口部より直
接挿入可能な前面操作であり，更に該装置内に内蔵され
て挿入方向と直行する方向に転写紙を給送する。転写紙
装填操作は総て装置前面でおこなえるので操作性は極め
て良い。As is clear from the above description, in the present invention, the paper feed cassette or the paper feed tray for accommodating a large number of transfer papers in a laminated form can be directly inserted through the opening provided in the lower front surface of the main body of the electrophotographic apparatus. It is a simple front operation, and is further incorporated in the apparatus to feed the transfer paper in a direction perpendicular to the insertion direction. All transfer paper loading operations can be performed on the front side of the device, so operability is extremely good.
またトラブル処理や装置内点検修理等に用いられる前面
開閉扉は上記開口部を有する下部筐体の上方に開閉自在
に設置されていて専用となっている。転写紙装填等のた
め上記給紙カセット又は給紙皿を操作するときには，下
部の開口部に挿入すればよい。このように前面開閉扉あ
るいは開口部がそれぞれ使用目的に応じて使い分けられ
ているので，機能的にも優れ操作性，安全性も向上す
る。Further, the front opening / closing door used for trouble handling, in-apparatus inspection and repair, etc., is installed above the lower housing having the above-mentioned opening so as to be openable / closable, and is dedicated. When operating the above-mentioned paper feed cassette or paper feed tray for loading transfer paper, etc., it may be inserted into the lower opening. In this way, since the front opening / closing door or the opening is used properly according to the purpose of use, it has excellent functionality and operability and safety are also improved.
また，本発明は給紙カセットの一端部に面して転写材を
給紙し，且つ反転給紙を行う第一給紙ローラが設けら
れ，又前記第一給紙ローラと従動ローラを利用して手差
し給紙を行うことが出来るように構成したので給紙搬送
系が全体に小型化され，空間を最大限に利用することに
より省スペース化が可能となった。Also, the present invention is provided with a first paper feed roller for feeding the transfer material and reversing the paper feed, facing one end of the paper feed cassette, and utilizing the first paper feed roller and the driven roller. Since it is configured to be able to manually feed paper, the paper feed and transport system has been made smaller overall, and space can be saved by maximizing the use of space.
更に，装置前面から給紙カセットや給紙皿を挿入操作す
る場合，最上部の転写部の転写紙と給紙ローラと全く接
触せずに行われるので，転写紙にシワの発生が生じて無
駄にすることがなく，また給紙ローラに紙粉付着などを
させずに済むばかりでなく挿入時余分な抵抗がないので
オペレータは安心して操作できる。そして，複写時は自
動的に給紙ローラと転写紙が適切な状態で圧接されるの
で，給送性能も優れ，ジャムなど発生しにくい高性能な
電子写真装置が提供できた。Furthermore, when inserting a paper feed cassette or a paper feed tray from the front of the device, the transfer paper at the uppermost transfer section and the paper feed roller do not come into contact with each other at all, so wrinkles are generated in the transfer paper and wasteful. In addition, there is no need to attach paper dust to the paper feed roller, and there is no extra resistance during insertion, so the operator can operate with peace of mind. Further, since the paper feed roller and the transfer paper are automatically brought into pressure contact with each other in an appropriate state during copying, a high performance electrophotographic device having excellent feeding performance and less likely to cause jams can be provided.
このように，機能性が高くコンパクトに設計できるので
電子写真装置に対して特に良い効果を得るものである。In this way, since it has high functionality and can be designed compactly, it is particularly effective for an electrophotographic apparatus.
第１図は従来の複写装置における給紙装置を示す概略断
面図，第２図および第３図は本発明による電子写真装置
の一実施例を示す断面図および斜視図，更に側面図，第
４図は本発明による他の実施例を示す断面図で，第５図
は前面扉の変形例を示すものである。 31……給紙カセット、33……ガイドレール 34……下部筐体、35,57……蝶番 36,56……前面扉、37……中板 38……押上レバー、39……第一給紙ローラ P1……転写紙FIG. 1 is a schematic sectional view showing a sheet feeding device in a conventional copying apparatus, FIGS. 2 and 3 are sectional views and perspective views showing an embodiment of an electrophotographic apparatus according to the present invention, further side views, and FIG. FIG. 5 is a sectional view showing another embodiment according to the present invention, and FIG. 5 shows a modification of the front door. 31 …… Paper feed cassette, 33 …… Guide rail 34 …… Lower housing, 35,57 …… Hinges 36,56 …… Front door, 37 …… Middle plate 38 …… Push-up lever, 39 …… First feed Paper roller P1 …… Transfer paper
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭52−35238（ＪＰ，Ｕ) 実開 昭54−55341（ＪＰ，Ｕ) 特公 昭50−29651（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References: Showa 52-35238 (JP, U) Showa 54-55341 (JP, U) Japanese Patent Sho 50-29651 (JP, B2)
Claims (2)
された静電潜像形成手段，トナー画像を形成する現像手
段，トナー画像を転写材に転写する転写手段及びクリー
ニング手段と，電子写真装置の一方の側の側壁に形成さ
れた転写材の排出口近辺に配置され，転写材に転写され
たトナー画像を定着する定着部と，転写材を収納する転
写材スタック手段とを有する電子写真装置において，前
記転写材スタック手段から前記転写手段に到る転写材搬
送部が，前記転写材スタック手段から転写材を一枚づつ
分離して給送する給送手段であるとともに，分離して給
送された転写材をＵターン反転させる転写材反転部を形
成する第１給送手段と，前記感光体と前記転写材反転部
との間に配置され，前記転写材反転部から給送された転
写材を前記感光体と前記転写手段の間に向けて給送する
第２給送手段とを有し，前記第２給送手段より前記定着
部までの転写材の搬送路の直下に前記転写材スタック手
段を配置し，前記電子写真装置の前記スタック手段の配
置位置よりも上方の部分の前面を開放するための扉を開
閉可能に設け，前記転写材スタック手段を，転写材の給
送方向とは直角方向である前記電子写真装置前方に前記
扉の開閉とは独立して引き出せるように構成し，且つ，
前記転写材反転部を構成する転写材案内部材の一部であ
って，転写材を上方に案内する部分を前記排出口が形成
された前記一方の側壁と反対側の他方の側壁を構成する
構造体に取付けたことを特徴とする電子写真装置。1. A photoconductor, an electrostatic latent image forming unit arranged around the photoconductor, a developing unit for forming a toner image, a transfer unit for transferring the toner image to a transfer material, a cleaning unit, and an electronic unit. An electronic device having a fixing unit arranged near a discharge port for a transfer material formed on a side wall of one side of a photographic device, for fixing a toner image transferred to the transfer material, and a transfer material stack means for accommodating the transfer material. In the photographic apparatus, the transfer material transporting section from the transfer material stacking means to the transfer means is a feeding means for separating and feeding the transfer materials one by one from the transfer material stacking means, and A first feeding unit that forms a transfer material reversing unit that reverses the fed transfer material by a U-turn, and is disposed between the photoconductor and the transfer material reversing unit, and is fed from the transfer material reversing unit. Transfer material to the photoreceptor A second feeding unit that feeds between the transfer units, and the transfer material stacking unit is arranged immediately below a transfer material transport path from the second feeding unit to the fixing unit, A door for opening a front surface of a portion above the arrangement position of the stacking means of the electrophotographic apparatus is provided so as to be openable and closable, and the transfer material stacking means is perpendicular to a transfer material feeding direction. It is constructed so that it can be pulled out to the front of the electrophotographic device independently of the opening and closing of the door, and
A structure, which is a part of a transfer material guide member that constitutes the transfer material reversing portion, and a portion that guides the transfer material upward constitutes the one side wall on which the discharge port is formed and the other side wall on the opposite side. An electrophotographic device characterized by being attached to the body.
された静電潜像形成手段，トナー画像を形成する現像手
段，トナー画像を転写材に転写する転写手段及びクリー
ニング手段と，電子写真装置の一方の側の側壁に形成さ
れた転写材の排出口近辺に配置され，転写材に転写され
たトナー画像を定着する定着部と，転写材を収納する転
写材スタック手段とを有する電子写真装置において，前
記転写材スタック手段から前記転写手段に到る転写材搬
送部が，前記転写材スタック手段から転写材を一枚づつ
分離して給送する第１給送手段と，前記第１給送手段か
ら給送された転写材がＵターン反転される転写材反転部
であって，後端が前記第１給送手段に近接して配置され
た転写材反転部と，前記感光体と前記転写材反転部との
間に配置され，前記転写材反転部から給送された転写材
を前記感光体と前記転写手段との間に向けて給送する第
２給送手段とを有し，前記第２給送手段より前記定着部
までの転写材の搬送路の直下に前記転写材スタック手段
を配置し，前記電子写真装置の前記スタック手段の配置
位置よりも上方の部分の前面を開放するための扉を開閉
可能に設け，前記転写材スタック手段を，転写材の給送
方向とは直角方向である前記電子写真装置前方に前記扉
の開閉とは独立して引き出せるように構成し，且つ，前
記転写材反転部を構成する転写材案内部材の一部であっ
て，転写材を上方に案内する部分を前記排出口が形成さ
れた前記一方の側壁と反対側の他方の側壁を構成する構
造体に取付けたことを特徴とする電子写真装置。2. A photoconductor, an electrostatic latent image forming unit arranged around the photoconductor, a developing unit for forming a toner image, a transfer unit for transferring the toner image to a transfer material, a cleaning unit, and an electronic unit. An electronic device having a fixing unit arranged near a discharge port for a transfer material formed on a side wall of one side of a photographic device, for fixing a toner image transferred to the transfer material, and a transfer material stack means for accommodating the transfer material. In the photographic apparatus, a transfer material conveying section from the transfer material stack means to the transfer means separates the transfer material from the transfer material stack means one by one, and first transfer means and the first transfer means. A transfer material reversing portion in which the transfer material fed from the feeding means is U-turn reversed, and a rear end of which is arranged near the first feeding means; It is arranged between the transfer material reversing part and A second feeding unit configured to feed the transfer material fed from the transfer material reversing unit toward the space between the photoconductor and the transfer unit, and from the second feeding unit to the fixing unit. The transfer material stack means is arranged immediately below the transfer material conveying path, and a door for opening the front surface of a portion above the arrangement position of the stack means of the electrophotographic apparatus is provided so that it can be opened and closed. A transfer material guide configured so that the stacking means can be pulled out in front of the electrophotographic apparatus, which is a direction perpendicular to the transfer material feeding direction, independently of the opening and closing of the door, and also constitutes the transfer material reversing portion. An electrophotography characterized in that a part of the member, which guides the transfer material upward, is attached to a structure that constitutes one side wall opposite to the one side wall where the discharge port is formed. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57157167A JPH0616194B2 (en) | 1982-09-08 | 1982-09-08 | Electrophotographic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57157167A JPH0616194B2 (en) | 1982-09-08 | 1982-09-08 | Electrophotographic device |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3030365A Division JPH0659522A (en) | 1991-02-25 | 1991-02-25 | Electrophotographic recorder |
| JP3249542A Division JPH05278881A (en) | 1991-09-27 | 1991-09-27 | Electrophotographic recording device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5945466A JPS5945466A (en) | 1984-03-14 |
| JPH0616194B2 true JPH0616194B2 (en) | 1994-03-02 |
Family
ID=15643649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57157167A Expired - Lifetime JPH0616194B2 (en) | 1982-09-08 | 1982-09-08 | Electrophotographic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0616194B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0641330B2 (en) * | 1984-08-09 | 1994-06-01 | 富士ゼロックス株式会社 | Copier |
| JPS61238620A (en) * | 1985-04-12 | 1986-10-23 | Hitachi Ltd | Image recorder |
| JPH081226Y2 (en) * | 1991-06-13 | 1996-01-17 | 株式会社リコー | Image forming device |
| JP2005292356A (en) | 2004-03-31 | 2005-10-20 | Brother Ind Ltd | Image forming apparatus |
| US7515865B2 (en) | 2004-03-31 | 2009-04-07 | Brother Kogyo Kabushiki Kaisha | Recording medium feeding device and image forming apparatus |
| US7252446B2 (en) | 2004-03-31 | 2007-08-07 | Brother Kogoy Kabushiki Kaisha | Image forming apparatus |
| JP2007226269A (en) * | 2007-05-17 | 2007-09-06 | Brother Ind Ltd | Image forming apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU6569574A (en) * | 1973-03-19 | 1975-08-21 | Dow Chemical Co | Coating composition |
| JPS554832Y2 (en) * | 1975-09-03 | 1980-02-05 |
-
1982
- 1982-09-08 JP JP57157167A patent/JPH0616194B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5945466A (en) | 1984-03-14 |
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