JPH027462B2 - - Google Patents
Info
- Publication number
- JPH027462B2 JPH027462B2 JP56024512A JP2451281A JPH027462B2 JP H027462 B2 JPH027462 B2 JP H027462B2 JP 56024512 A JP56024512 A JP 56024512A JP 2451281 A JP2451281 A JP 2451281A JP H027462 B2 JPH027462 B2 JP H027462B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- document
- feeding
- groove
- photosensitive drum
- 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
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000012840 feeding operation Methods 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920005177 Duracon® POM Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/65—Apparatus which relate to the handling of copy material
- G03G15/6555—Handling of sheet copy material taking place in a specific part of the copy material feeding path
- G03G15/6558—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point
- G03G15/6561—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point for sheet registration
- G03G15/6564—Feeding path after the copy sheet preparation and up to the transfer point, e.g. registering; Deskewing; Correct timing of sheet feeding to the transfer point for sheet registration with correct timing of sheet feeding
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
- G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
- G03G2215/00405—Registration device
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
- G03G2215/00535—Stable handling of copy medium
- G03G2215/00556—Control of copy medium feeding
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Paper Feeding For Electrophotography (AREA)
- Registering Or Overturning Sheets (AREA)
Description
【発明の詳細な説明】
本発明は複写機・記録機・その他シートを搬送
する機械等（以下複写機等という）のシート給送
装置に関するもので、特に、原稿等の露光のため
に移動する走査移動手段の移動と連動させてレジ
スト部材（板）を作動させてシートのタイミング
給送制御するシート給送装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheet feeding device for copying machines, recording machines, and other machines that transport sheets (hereinafter referred to as copying machines, etc.), and in particular, the present invention relates to sheet feeding devices for copying machines, recording machines, and other machines that transport sheets (hereinafter referred to as copying machines, etc.). The present invention relates to a sheet feeding device that controls the timing feeding of sheets by operating a registration member (plate) in conjunction with the movement of a scanning movement means.
例えば、複写機において、感光ドラム上に形成
された静電潜像又は可視像をシートに転写して複
写を得るいわゆる転写式複写機においては、給紙
手段により給紙されるシートの給紙開始後に、通
常感光ドラム上の画像位置に対応すべくシートの
タイミングをとつて送るためのレジスト手段が設
けられている。そして、このレジスト手段は感光
ドラム上の画像位置にその画像が転写されるシー
トを合せるためにタイミングをとつて送り出すた
めの役割をするきわめて重要な機能をもつている
部分である。 For example, in a copying machine, a so-called transfer type copying machine obtains a copy by transferring an electrostatic latent image or a visible image formed on a photosensitive drum onto a sheet. After starting, registration means is usually provided for timing and feeding the sheet to correspond to the image position on the photosensitive drum. This registration means is a part having an extremely important function of feeding out the sheet at the right timing to align the image position on the photosensitive drum with the sheet on which the image is to be transferred.
しかしながら、従来のこのようなシート送り出
しのタイミング制御方式においては複写機本体の
感光ドラムと同期回転する回転体の位相をマイク
ロスイツチで検知し、マイクロスイツチの発生信
号に応じて各シート給送手段のクラツチのソレノ
イドを作動させていた。しかしマイクロスイツチ
が信号を発生してからソレノイドが実際に作動す
るまでの応答時間にばらつきがあるため、正確な
タイミングでシート給送動作が行われることが期
待できなかつた。さらに、また、特に薄いシート
の場合では給紙ローラ対の圧接力によりしわの発
生が生じるおそれが多く、厚いシートの場合には
給紙ローラ対のニツプ部の挿入角度の関係から搬
送不能となる等の欠点があるものである。 However, in the conventional timing control system for sheet feeding, a micro switch detects the phase of a rotating body that rotates synchronously with the photosensitive drum in the main body of the copying machine, and each sheet feeding means is controlled according to the signal generated by the micro switch. It was activating the clutch solenoid. However, because the response time from when the microswitch generates a signal to when the solenoid actually operates varies, it was not possible to expect the sheet feeding operation to be performed at accurate timing. Furthermore, especially in the case of thin sheets, wrinkles are likely to occur due to the pressure contact between the pair of paper feed rollers, and in the case of thick sheets, it may become impossible to convey the sheet due to the insertion angle of the nip portion of the pair of paper feed rollers. It has the following drawbacks.
そこで本発明は、正確なタイミングでシート給
送動作を行うことができる複写機等のシート給送
装置を提供することを目的とする。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a sheet feeding apparatus such as a copying machine that can perform sheet feeding operations at accurate timing.
本発明の別の目的は原稿等の露光走査移動する
手段の移動に機械的に連動させてレジスト部材を
作動させてシートの給送タイミングを制御する複
写機等のシート給送装置を提供することである。 Another object of the present invention is to provide a sheet feeding device such as a copying machine that controls sheet feeding timing by operating a registration member mechanically in conjunction with the movement of a means for exposing and scanning a document. It is.
上記目的を達成できる本発明の構成は、
シートを給送する給送手段と、
前記給送手段の給送方向下流側に配置され、第
１の位置において前記給送手段によつて送られて
きたシートの先端に当接してシートの進行を阻止
し、第２の位置においてシート先端の阻止を解除
するレジスト部材と、
原稿の光学的走査のために移動する走査部材と
を有し、
前記走査部材の移動に機械的に連動して前記レ
ジスト部材が第１の位置と第２の位置とに移動す
るように構成したことを特徴とする複写機等のシ
ート給送装置である。 The configuration of the present invention capable of achieving the above object includes: a feeding means for feeding a sheet; and a sheet disposed downstream of the feeding means in the feeding direction, and a sheet being fed by the feeding means at a first position. a resist member that comes into contact with the leading edge of the sheet to prevent the sheet from advancing and releases the blocking of the leading edge of the sheet in a second position; and a scanning member that moves for optically scanning the original; A sheet feeding device for a copying machine or the like, characterized in that the resist member is configured to move between a first position and a second position in mechanical conjunction with movement of the member.
以下、本発明の実施例の一つについて、図に従
つて詳細に説明する。 Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.
まず、本発明が適用できる複写機の一実施例に
ついて説明する。第１図において、１は透明な部
材よりなり原稿載置部を有する原稿の光学的走査
のために移動する走査部材としての原稿載置台で
矢印方向に往復動可能である。２は集束性光伝送
体で原稿載置台１上にある原稿像を矢印方向に回
転する感光ドラム３上にスリツト露光する。４は
帯電器であり感光ドラム３に一様に帯電を施す。
５は現像器であり、一様に帯電された感光ドラム
３は集束性光伝送体２を介して原稿の静電潜像が
該ドラム上に形成され、現像器５により顕像化さ
れる。一方シートとしての転写紙Ｐは給紙ローラ
６および給送手段としてのシート搬送ローラ対７
によつて送られ、レジスト部材としてのレジスト
板３２により一旦進行が阻止される。そして、感
光ドラム３上の画像と同期するようにレジスト板
３２の阻止が解除されて転写紙Ｐは感光ドラム３
上に送り込まれ、転写帯電器８により感光ドラム
３上の画像が転写され、その後分離手段により該
ドラム３から転写紙は分離し、ガイド９に案内さ
れた後、定着器１０により転写紙Ｐ上のトナー像
は転写紙に定着され、続いて排出ローラ１１によ
り搬送されて、トレイ１２上に排出される。 First, an embodiment of a copying machine to which the present invention can be applied will be described. In FIG. 1, reference numeral 1 denotes a document placement table, which is made of a transparent member and has a document placement section and is a scanning member that moves for optical scanning of the document, and is capable of reciprocating in the direction of the arrow. Reference numeral 2 denotes a converging light transmitting member which slit-exposes the original image on the original table 1 onto a photosensitive drum 3 rotating in the direction of the arrow. A charger 4 charges the photosensitive drum 3 uniformly.
Reference numeral 5 denotes a developing device, and an electrostatic latent image of the document is formed on the uniformly charged photosensitive drum 3 via the focusing light transmitting member 2, and is visualized by the developing device 5. On the other hand, the transfer paper P as a sheet is handled by a paper feed roller 6 and a pair of sheet conveyance rollers 7 as a feeding means.
, and its progress is temporarily stopped by a resist plate 32 as a resist member. Then, the blocking of the resist plate 32 is released and the transfer paper P is transferred to the photosensitive drum 3 in synchronization with the image on the photosensitive drum 3.
The image on the photosensitive drum 3 is transferred by the transfer charger 8, and then the transfer paper is separated from the drum 3 by the separating means.After being guided to the guide 9, the image is transferred onto the transfer paper P by the fixing device 10. The toner image is fixed on the transfer paper, and then conveyed by a discharge roller 11 and discharged onto a tray 12.
次に第２図によつて原稿台移動部について説明
する。 Next, the document table moving section will be explained with reference to FIG.
１３は原稿圧着板であり、透明な原稿載置台１
上に載置された原稿を押さえる役目をするもので
あり、本実施例の場合ポリプロピレンを材質とし
てヒンジ部１３′をも兼ねた一体基板でできてお
り、これにスポンジ状のクツシヨンを介して白色
圧着シート１３″が取りつけられている。１４1は
原稿載置台取付部材でポリカーボネート、ジユラ
コン等のプラスチツク部材でできており原稿載置
台押え部材１４2とによつてビスによりスライド
レール１４3（通称アキユライドレール）に固定さ
れている。又、原稿載置台取付部材１４1にラツ
ク１４4があり本体側の原稿載置台駆動ギア１４5
の正逆転により原稿載置台１は往復動をすること
ができる。 Reference numeral 13 denotes a document pressure bonding plate, and a transparent document mounting table 1
It has the role of holding down the original placed on it, and in this embodiment, it is made of an integral board made of polypropylene that also serves as a hinge part 13', and a white paper is attached to it via a sponge-like cushion. A pressure bonding sheet 13 ' ' is attached. Reference numeral 141 denotes an original mounting plate mounting member made of a plastic material such as polycarbonate or DURACON. In addition, there is a rack 144 on the original mounting table mounting member 141 , which is attached to the original mounting table drive gear 145 on the main body side.
The original table 1 can reciprocate by rotating forward and backward.
次に、本発明による原稿台往復動機構と給送機
構との関連について説明する。 Next, the relationship between the document table reciprocating mechanism and the feeding mechanism according to the present invention will be explained.
第３図及び第４図において、原稿載置台取付部
材１４1の奥側裏面には原稿載置台１の移動方向
に沿う溝部１９が設けられており、その溝部１９
は２列溝１９1，１９2が平行に並置され、その両
端部１９3，１９4で合流している。さらに溝部１
９の一部には***部１９5が設けられてカム状に
なつている。また溝１９にはピン２０が係合して
おり、そのピン２０は軸２１を中心として揺動可
能で軸２１の位置はレバー２２の一端２１1で前
後に一定量変更移動可能となつており、適正位置
に調整可能に固定できる。レバー２２は軸２３を
中心に揺動可能でばね２４により反時計方向に回
転するように付勢されている。第４図は搬送制御
部分の部分正面図である。レバー２２の一端２２
１の反対端（他端）２２2には調整板２５が当接さ
れ、その調整板２５の位置は軸２７を中心に揺動
可能になつており位置調整可能に、ビス２６によ
つてレバー２８に固定されている。レバー２８は
軸２９を中心に揺動可能でばね３０によつて時計
方向の回転力が与えられており、レバー２８の一
端部には二又部３１1，３１2が形成されている。
そして、その二又部３１1，３１2は案内孔３３か
ら突出しているレジスト板３２の突出部３２1と
係合して連動できるようになつている。また突出
部３２1は案内孔３３に沿つて上下動できるよう
になつている。レジスト板３２は感光ドラムの軸
と平行になるように配置され、搬送上ガイド３４
及び搬送下ガイド３５にあけられた穴部を通つて
突出しており、常時は搬送上ガイド３４と搬送下
ガイド３５によつて形成される搬送シート搬送路
３６を閉鎖している。 In FIGS. 3 and 4, a groove 19 is provided on the back side of the original mounting table mounting member 14 1 along the moving direction of the original mounting table 1.
In this case, two rows of grooves 19 1 and 19 2 are arranged in parallel and join at both ends 19 3 and 19 4 . Furthermore, groove part 1
A raised portion 195 is provided on a part of the portion 9 to form a cam shape. Further, a pin 20 is engaged with the groove 19, and the pin 20 is swingable about a shaft 21, and the position of the shaft 21 can be changed back and forth by a fixed amount by one end 211 of a lever 22. , can be adjusted and fixed in the proper position. The lever 22 is swingable about a shaft 23 and is urged by a spring 24 to rotate counterclockwise. FIG. 4 is a partial front view of the conveyance control section. One end 22 of the lever 22
An adjustment plate 25 is brought into contact with the opposite end (other end) 22 2 of the adjustment plate 25, and the position of the adjustment plate 25 can be swung around a shaft 27. It is fixed at 28. The lever 28 is swingable about a shaft 29 and is given a clockwise rotational force by a spring 30, and has forked portions 31 1 and 31 2 formed at one end thereof.
The forked portions 31 1 and 31 2 are adapted to engage and interlock with the protruding portion 32 1 of the resist plate 32 protruding from the guide hole 33. Further, the protrusion 32 1 can move up and down along the guide hole 33 . The resist plate 32 is arranged parallel to the axis of the photosensitive drum, and the upper conveyance guide 34
and protrudes through a hole formed in the lower conveyance guide 35, and normally closes the conveyance sheet conveyance path 36 formed by the upper conveyance guide 34 and the lower conveyance guide 35.
シート搬送ローラ対７は上ローラ７1と下ロー
ラ７2からなり、７1はコロ状で表面は平滑であり
自重もしくは弱いバネによる付勢等で下ローラ７
２に軽圧接し軸３７を中心に回転自在となつてい
る。下ローラ７2は心金にゴム等の弾性材を固着
させたもので、シートの搬送性及び耐久性から弾
性材料としては、シートとの摩擦係数が高く、耐
摩耗性のあるもの、例えばウレタンゴム等の材料
が望ましい。下ローラ７2は軸３８を中心として、
メインモータ３９からギア列を介して駆動回転す
る。シートは上ローラ７1によつて下ローラ７2に
押えつけられ、下ローラ７2の摩擦力で搬送され
る。従つてシートが止められると、上ローラ７1
も止まり、下ローラ７2は転写シート下面とスリ
ツプするようになつている。 The sheet conveying roller pair 7 consists of an upper roller 7 1 and a lower roller 7 2. 7 1 is roller-shaped and has a smooth surface, and the lower roller 7 is moved by its own weight or biased by a weak spring.
2 , and is rotatable around a shaft 37. The lower roller 7 2 is made by fixing an elastic material such as rubber to a core metal, and from the viewpoint of sheet conveyance and durability, the elastic material has a high coefficient of friction with the sheet and is wear resistant, such as urethane. Materials such as rubber are preferable. The lower roller 72 is centered around the shaft 38,
It is driven and rotated by a main motor 39 via a gear train. The sheet is pressed against the lower roller 7 2 by the upper roller 7 1 and conveyed by the frictional force of the lower roller 7 2 . Therefore, when the sheet is stopped, the upper roller 7 1
The lower roller 72 also stops, and the lower roller 72 is designed to slip against the lower surface of the transfer sheet.
次に給送装置の作動原理を説明する。 Next, the operating principle of the feeding device will be explained.
メインスイツチ（図示せず）を投入すると、原
稿載置台１は原稿露光位置まで移動する。このと
き第３図においてピン２０は溝１９の端部１９3
の位置にある。またシート搬送ローラ７1及び７2
は矢印の方向に回転している。（第４図）。 When a main switch (not shown) is turned on, the document placing table 1 moves to the document exposure position. At this time, in FIG. 3, the pin 20 is at the end 19 3 of the groove 19.
It is located at Also, sheet conveyance rollers 7 1 and 7 2
is rotating in the direction of the arrow. (Figure 4).
コピーボタンを押すと原稿載置台１が移動を開
始して原稿露光し始める。 When the copy button is pressed, the document placement table 1 starts moving and exposes the document.
シートはシート搬送ローラ対７によつて送られ
る。シートの先端がレジスト板３２に突き当たつ
て感光ドラムの軸と平行となるようにそろえられ
ると上ローラ７1は停止し、下ローラ７2がスリツ
プする。 The sheet is conveyed by a pair of sheet conveying rollers 7. When the leading edge of the sheet hits the resist plate 32 and is aligned parallel to the axis of the photosensitive drum, the upper roller 71 stops and the lower roller 72 slips.
溝１９1の***部１９5がピン２０の位置に来る
とレバー２２が軸２３を中心に時計方向に回動す
る。するとレバー２２の端部２２2が上昇し、バ
ネ３０の付勢によつて、レバー２８が軸２９を中
心として時計方向に回動する。従つてレバー２８
の二又部３１1，３１2が下降してレジスト板突起
部３２1を下げレジスト板３２が下に下がり搬送
通路３６を開く。搬送通路３６が開かれるとシー
トは再びシート搬送ローラ対７によつて感光体ド
ラムに向けて送られる。 When the raised portion 19 5 of the groove 19 1 comes to the position of the pin 20, the lever 22 rotates clockwise about the shaft 23. Then, the end 22 2 of the lever 22 rises, and the lever 28 rotates clockwise about the shaft 29 due to the bias of the spring 30. Therefore, the lever 28
The forked portions 31 1 and 31 2 of the resist plate 32 are lowered to lower the resist plate protrusion 32 1 and the conveyance passage 36 is opened. When the conveyance path 36 is opened, the sheet is again conveyed toward the photosensitive drum by the pair of sheet conveyance rollers 7.
シートの後端がレジスト板３２を通過した後ピ
ン２０が溝１９の***部１９5から再び溝部１９1
にもどるとレジスト板３２は再び搬送通路３６を
閉鎖する。 After the rear end of the sheet passes through the resist plate 32, the pin 20 moves from the raised portion 195 of the groove 19 again to the groove portion 191.
When returned, the resist plate 32 closes the conveyance path 36 again.
上記のようにシート搬送開始時期は溝部１９の
***部１９5の始点１９6の位置で決定される。 As described above, the sheet conveyance start timing is determined by the position of the starting point 19 6 of the raised portion 19 5 of the groove portion 19 .
従つてシート上の画像先端の位置はピン２０が
***部始点１９6に到る時期によつて決定される。 Therefore, the position of the leading edge of the image on the sheet is determined by when the pin 20 reaches the ridge starting point 196 .
また、ピン２０が***部終点１９7に来るとレ
ジスト板３２が持ち上げられるので、レジスト板
３２が搬送中のシートの後部をはさんでしまわな
いようにするために、***部始点１９6と終点１
９7との間の長さは、本実施例における複写機で
複写できるシートの最大サイズよりも若干長くし
てある。 In addition, when the pin 20 reaches the end point 197 of the raised portion, the resist plate 32 is lifted, so in order to prevent the resist plate 32 from pinching the rear of the sheet being conveyed, the raised portion start point 196 and the end point 1
9 and 7 is slightly longer than the maximum size of a sheet that can be copied by the copying machine in this embodiment.
原稿載置台の移動が進んで原稿の露光を完了
し、溝端部１９4がピン２０の位置に来ると、溝
に沿つてピン２０が揺動して１９1から溝１９2に
移る。原稿載置台が反転するとピン２０は溝１９
２を通る。溝１９2には***部が設けられていない
ので、レジスト板３２はシート搬送通路３６を閉
鎖したままである。溝端部１９3がピン２０の位
置に来ると、ピン２０が溝に沿つて１９2から１
９1に移り、次のコピーに備えられる。 As the document placement table continues to move and exposure of the document is completed and the groove end 19 4 comes to the position of the pin 20 , the pin 20 swings along the groove and moves from the groove 19 1 to the groove 19 2 . When the original table is reversed, the pin 20 is in the groove 19.
Pass through 2 . Since the groove 19 2 is not provided with a raised portion, the resist plate 32 remains closed to the sheet transport path 36 . When the groove end 19 3 comes to the position of the pin 20, the pin 20 moves along the groove from 19 2 to 1
9 Move to 1 and prepare for the next copy.
以上説明したように本発明の構成によれば搬送
されてくるシートの送り出しタイミングは電磁ク
ラツチ・バネクラツチ等の駆動制御手段等を必要
とせずに原稿の露光走査移動手段等の移動を利用
するのみで行なうことができ、さらにはローラ対
によるシート停止等を行なう必要もないのでシー
トの薄厚に影響されずに正確にタイミング制御が
でき、シート連続搬送の場合には特に有効であ
る。また本発明によれば、感光ドラムと同期回転
する回転体の位相をマイクロスイツチで検知し、
マイクロスイツチの発生信号に応じて各シート給
送手段のクラツチのソレノイドを作動させていた
ものに比べ、正確なタイミングでシート給送動作
を行うことができる。 As explained above, according to the configuration of the present invention, the feeding timing of the conveyed sheet can be determined simply by using the movement of the exposure scanning movement means of the document, without requiring a drive control means such as an electromagnetic clutch or a spring clutch. Further, since there is no need to stop the sheet using a pair of rollers, timing control can be performed accurately without being affected by the thinness of the sheet, and this is particularly effective in the case of continuous sheet conveyance. Further, according to the present invention, the phase of the rotating body that rotates synchronously with the photosensitive drum is detected by a microswitch,
Sheet feeding operations can be performed with more accurate timing than in the case where the solenoid of the clutch of each sheet feeding means is operated in response to a signal generated by a microswitch.
第１図は本発明が適用できる複写機の一例を示
した断面図、第２図はその原稿載置台移動部を示
した断面図、第３図は原稿載置台との連動部を示
した斜視図、第４図は本発明の主要部の部分正面
図である。
図において、１は原稿載置台、１９は溝、１９
５は***部、１９6は***部始点、１９7は***部
終点、２０はピン、２２，２８はレバー、３２は
レジスト板である。
FIG. 1 is a cross-sectional view showing an example of a copying machine to which the present invention can be applied, FIG. 2 is a cross-sectional view showing a moving part of the document placing table, and FIG. 3 is a perspective view showing the interlocking part with the document placing table. 4 are partial front views of the main parts of the present invention. In the figure, 1 is a document placement table, 19 is a groove, 19
5 is a raised portion, 19 6 is a starting point of the raised portion, 19 7 is an end point of the raised portion, 20 is a pin, 22 and 28 are levers, and 32 is a resist plate.
Claims (1)
１の位置において前記給送手段によつて送られて
きたシートの先端に当接してシートの進行を阻止
し、第２の位置においてシート先端の阻止を解除
するレジスト部材と、 原稿の光学的走査のために移動する走査部材と
を有し、 前記走査部材の移動に機械的に連動して前記レ
ジスト部材が第１の位置と第２の位置とに移動す
るように構成したことを特徴とする複写機等のシ
ート給送装置。[Scope of Claims] 1. A feeding device that feeds a sheet; and a leading end of the sheet that is disposed downstream of the feeding device in the feeding direction and that is fed by the feeding device at a first position. a resist member that comes into contact with the sheet to prevent the sheet from advancing, and releases the blocking of the leading edge of the sheet at a second position; and a scanning member that moves to optically scan the document, and the scanning member that moves to optically scan the document. 1. A sheet feeding device for a copying machine or the like, characterized in that the resist member is mechanically interlocked to move between a first position and a second position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56024512A JPS57138657A (en) | 1981-02-20 | 1981-02-20 | Sheet feeding device for copying machine or the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56024512A JPS57138657A (en) | 1981-02-20 | 1981-02-20 | Sheet feeding device for copying machine or the like |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57138657A JPS57138657A (en) | 1982-08-27 |
| JPH027462B2 true JPH027462B2 (en) | 1990-02-19 |
Family
ID=12140219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56024512A Granted JPS57138657A (en) | 1981-02-20 | 1981-02-20 | Sheet feeding device for copying machine or the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57138657A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS612346U (en) * | 1984-06-11 | 1986-01-09 | シャープ株式会社 | Paper stop plate opening/closing mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52111730A (en) * | 1976-03-17 | 1977-09-19 | Ricoh Co Ltd | Conveyor for copy sheets |
| JPS544132A (en) * | 1977-06-11 | 1979-01-12 | Mita Industrial Co Ltd | Synchronizing method and apparatus of document and copy paper in electrostatic photography copy |
| JPS5484735A (en) * | 1977-12-19 | 1979-07-05 | Konishiroku Photo Ind Co Ltd | Conveying method of transfer paper |
| JPS57130055A (en) * | 1980-12-24 | 1982-08-12 | Xerox Corp | Automatically copying machine |
-
1981
- 1981-02-20 JP JP56024512A patent/JPS57138657A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52111730A (en) * | 1976-03-17 | 1977-09-19 | Ricoh Co Ltd | Conveyor for copy sheets |
| JPS544132A (en) * | 1977-06-11 | 1979-01-12 | Mita Industrial Co Ltd | Synchronizing method and apparatus of document and copy paper in electrostatic photography copy |
| JPS5484735A (en) * | 1977-12-19 | 1979-07-05 | Konishiroku Photo Ind Co Ltd | Conveying method of transfer paper |
| JPS57130055A (en) * | 1980-12-24 | 1982-08-12 | Xerox Corp | Automatically copying machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57138657A (en) | 1982-08-27 |
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