JPS60132863A - Sheet conveyor device - Google Patents

Sheet conveyor device

Info

Publication number
JPS60132863A
JPS60132863A JP58237282A JP23728283A JPS60132863A JP S60132863 A JPS60132863 A JP S60132863A JP 58237282 A JP58237282 A JP 58237282A JP 23728283 A JP23728283 A JP 23728283A JP S60132863 A JPS60132863 A JP S60132863A
Authority
JP
Japan
Prior art keywords
paper
sheet
intermediate tray
copying
tray
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP58237282A
Other languages
Japanese (ja)
Other versions
JPH0219072B2 (en
Inventor
Hidetoshi Tanaka
秀俊 田中
Yoshifumi Takehara
竹原 良文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP58237282A priority Critical patent/JPS60132863A/en
Publication of JPS60132863A publication Critical patent/JPS60132863A/en
Publication of JPH0219072B2 publication Critical patent/JPH0219072B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/22Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/23Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
    • G03G15/231Arrangements for copying on both sides of a recording or image-receiving material
    • G03G15/232Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member
    • G03G15/234Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member by inverting and refeeding the image receiving material with an image on one face to the recording member to transfer a second image on its second face, e.g. by using a duplex tray; Details of duplex trays or inverters
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00Apparatus for electrophotographic processes
    • G03G2215/00362Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00535Stable handling of copy medium
    • G03G2215/00556Control of copy medium feeding
    • G03G2215/00578Composite print mode

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Conveyance By Endless Belt Conveyors (AREA)
  • Counters In Electrophotography And Two-Sided Copying (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Abstract

PURPOSE:To always enable sheets to be loaded on an intermediate tray with the same image surfaces of the sheets being directed in the same direction even if bi-surface copying, synthetic copying, etc. is carried out, in order to prevent image-disturbance, by disposing a change-over section for selecting the reversing of a sheet, in a conveying passage downstream of the intermediate tray. CONSTITUTION:In order to carry out usual uni-surface copying, a sheet P is fed out from a paper cassette 5 by means of a paper feed roller 10. At this time flappers 8, 9 are set in positions indicated by phantom lines so that the sheet P is elevated by means of the flapper 8, and after toner is transferred from a photosensitive medium drum 2 onto the paper P, the paper P is discharged into a paper discharge tray 6, being passed through a fixing device 11. If bi-surface copying is carried out, the flapper 9 is set at a position indicated by the solid line, and papers P are once reserved in an intermediate tray 7. Then, upon refeed roller 12 feeds out a paper from the intemediate tray 7 to carry out the transfer and fixation onto non-image surface of the paper P. With this arrangement the papers P having the same image surfaces being directed in the same direction, may be loaded on the intermediate tray 7 in any case.

Description

【発明の詳細な説明】 本発明は複写機・印刷機・記録411−その他シートを
反転する機構を具備する各種機械等(以下複写機等とい
う)のシート搬送装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheet conveyance device for copying machines, printing machines, recording machines, and other various machines (hereinafter referred to as copying machines) equipped with a mechanism for reversing sheets.

従来、この種の装置において、例えば、シートの両面に
複写をする両面複写装置、或いはシートの同一面に複写
をくり返す合成複写装置等においては、通常−面複写済
ジートを載置する中間トレイ上に載置されるシートに形
成された画像の表裏の向きを統一できないため、中間ト
レイからのシート分類が上側又は下側分類給送のいずれ
の方式にしてもどちらか一方は画像面が分離給送側にな
る。従って、分離給送機能により画像面をこすることに
より分離給送手段にトナー等が付着し分離給送機能を著
しく低下させてしまうという欠点があった。さらに、分
離給送手段により画像面がこすられることにより画像部
れを生じるという欠点もあった。
Conventionally, in this type of apparatus, for example, a double-sided copying machine that copies on both sides of a sheet, or a composite copying machine that repeatedly copies on the same side of a sheet, an intermediate tray on which a sheet that has been copied on both sides is usually placed. Since the front and back directions of the images formed on the sheets placed above cannot be unified, no matter whether the sheets are sorted from the intermediate tray by upper or lower sorting, the image surface of one of them will be separated. Become the feeding side. Therefore, there is a drawback that toner or the like adheres to the separation and feeding means due to the rubbing of the image surface by the separation and feeding function, which significantly deteriorates the separation and feeding function. Furthermore, there is also the drawback that the image surface is rubbed by the separating and feeding means, causing image blurring.

そこで、本発明はこれらの欠点に鑑みて改良した新規な
シート搬送装置を提供することを目的とするものである
Therefore, an object of the present invention is to provide a novel sheet conveying device that is improved in view of these drawbacks.

本発明の別の目的は中間トレイ通過後の搬送径路中にシ
ート□の反転を選択する切り換え部を配置したシート搬
送装置を提供することであ菖。
Another object of the present invention is to provide a sheet conveyance device in which a switching section for selecting reversal of the sheet □ is arranged in the conveyance path after passing the intermediate tray.

即ち、上記目的を達成できる本発明の主要な構成は給送
手段により送り・出されたシートに画像形成した後に中
間トレイ上に載置し、該中間トレイ上から再給送手段に
より再搬送するシート搬送装置で、該中間トレイ上から
該再給送手段により再搬送された後のシート搬送径路中
にシートを反転する径路とシートを反転しない径路とに
シートを選択的に導く切換え手段を配設したことを特徴
としたシート搬送装置である。
That is, the main structure of the present invention that can achieve the above object is that after an image is formed on a sheet sent by a feeding means, the sheet is placed on an intermediate tray, and the sheet is re-transported from the intermediate tray by a re-feeding means. In the sheet conveyance device, a switching means is provided for selectively guiding the sheet into a path for reversing the sheet and a path for not reversing the sheet in the sheet conveyance path after being re-conveyed from the intermediate tray by the re-feeding means. This sheet conveying device is characterized by:

以下、本発明の具体的実施例について図に従って詳細に
説明する。第1図は本発明の実施例を示した断面図であ
る。
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the present invention.

1は複写機本体、2は感光ドラム、3は感光体ドラム2
上あ静電潜像を現像する現像器、4はクリーナ装置、5
は給紙カセット、6は排紙トレイである。
1 is the copying machine body, 2 is the photosensitive drum, 3 is the photosensitive drum 2
A developing device for developing the electrostatic latent image, 4 a cleaner device, 5
6 is a paper feed cassette, and 6 is a paper discharge tray.

まず、普通の片面複写を行う場合は、シートPは給紙ロ
ーラ10によって給紙カセット5より送り出される。そ
の時フラッパ8.9は破線の状態になっており、紙Pは
フラッパ8の所で上にあがり感光体ドラム上からトナー
が転写され、定着器11を通って排紙トレイ6に排出さ
れる。
First, when performing normal one-sided copying, the sheet P is sent out from the paper feed cassette 5 by the paper feed roller 10. At this time, the flappers 8 and 9 are in the state shown by the broken line, and the paper P is lifted up at the flapper 8, toner is transferred from the photosensitive drum, and the paper P is discharged to the paper discharge tray 6 through the fixing device 11.

次に両面複写を行う場合1面目は前述の片面コピーと同
様だがフラッパー9が実線の状態となっているため、紙
Pは中間トレイ7に1度貯留される。そして再給紙時に
は再給紙ローラ12により中間トレイ7より紙Pが送り
出され、今度はフラッパー9が破線の状態となっている
ため非画像面に転写定着後排紙トレイに排出される。
Next, when double-sided copying is performed, the first side is the same as the single-sided copy described above, but since the flapper 9 is in a solid line state, the paper P is stored once in the intermediate tray 7. When the paper is re-fed, the paper P is sent out from the intermediate tray 7 by the re-feed roller 12, and since the flapper 9 is now in the state shown by the broken line, the paper P is transferred and fixed onto the non-image surface and then ejected to the paper discharge tray.

合成複写を行う場合はまず第1原稿の複写は両面コピー
の一面目と同じ通路を通って同じように中間トレイ7に
1度貯留される。次に第二原稿を前記図面に複写しよう
とする時はまず中間トレイ、7から再給紙ローラ12に
より紙が送り出される。この時、フラッパー8は実線の
状態となっているため紙Pは前述のように直接感光体ド
ラムに向かわずそのまま搬送ローラ13の所にいき紙後
端がフラッパー8をぬけた所でローラ13の反転によっ
て再度送り出される。この動作によって同一画像面が感
光ドラム側にあり再度転写定着しく合成複写)排紙トレ
イ6に排出される。
When performing composite copying, first, the copy of the first original passes through the same path as the first side of the double-sided copy and is stored once in the intermediate tray 7 in the same way. Next, when the second original is to be copied onto the drawing, the paper is first fed out from the intermediate tray 7 by the paper refeed roller 12. At this time, since the flapper 8 is in the solid line state, the paper P does not go directly to the photoreceptor drum as described above, but goes directly to the conveying roller 13, and when the trailing edge of the paper passes through the flapper 8, it is moved to the roller 13. It is sent out again by reversal. By this operation, the same image surface is on the photosensitive drum side and is transferred and fixed again (composite copying).

以上説明したように両面及び合成複写に必要な反転等の
紙の動きを中間トレイから再給紙した後に行うため、畳
坤紙時に画像面は必ず片側に統一される。このため前述
した様に再給紙口iうが画像面害をこすることがないの
で再給紙ローラのトナー付置等、による。スリップ等の
給紙不良を防ぐことができる。
As explained above, since paper movement such as reversal required for double-sided copying and composite copying is performed after paper is re-fed from the intermediate tray, the image surface is always unified to one side when folded paper is printed. For this reason, as described above, since the paper refeeding port does not damage the image surface, it is necessary to place toner on the paper refeed roller. Paper feeding defects such as slips can be prevented.

次に2本発明の別の実施例について説明する。Next, two other embodiments of the present invention will be described.

第2図はそρ実施例を、示した断面図である。FIG. 2 is a sectional view showing the ρ embodiment.

第1図に示した実施例ものは中間トレイ7に積載9れる
。シート秤は上、面、に画像面が形成されているため、
下側給送としかものであるが、第2図に示した実施例の
ものにおいてはフラッパー9から導かれたシニ、トを反
転して中間トレイ7上に載置するためシートの下側が画
像面となるためシードの分離給送ローラ14を上側に配
置したものである。そ、の他の構成については第1図の
実施例と同様な構成となう、ているため同番号を付して
その説明を省略する。
The objects of the embodiment shown in FIG. 1 are stacked 9 on an intermediate tray 7. Since the sheet scale has an image surface formed on the top side,
However, in the embodiment shown in FIG. 2, the sheets guided from the flapper 9 are reversed and placed on the intermediate tray 7, so that the bottom side of the sheet is the image surface. Therefore, the seed separation and feeding roller 14 is arranged on the upper side. Since the other configurations are similar to those of the embodiment shown in FIG. 1, they will be given the same reference numerals and their explanation will be omitted.

以上説明、したように本発明の構成によれば、例えば、
両面又は合成(多重)複写等の多機能記録を行なう場合
でも中間トレイ上にはいずれの場合も同一画像面を積載
できるので分離給送手段と画像面のこすり汚れ、画像乱
れ等を防止することができる。
As explained above, according to the configuration of the present invention, for example,
Even when performing multi-functional recording such as double-sided copying or composite (multiple) copying, the same image surface can be stacked on the intermediate tray in both cases, thereby preventing scratches on the separation feeding means and the image surface, image disturbance, etc. I can do it.

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

第1図は本発明の実施例の断面図、第2図は他の実施例
を示した断面図である。 図において、7は中間トレイ、8,9はフラッパー、1
2.14は給紙ローラ、13は正逆転搬送ローラである
。 出願人 キャノン株式会社
FIG. 1 is a cross-sectional view of an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing another embodiment. In the figure, 7 is an intermediate tray, 8 and 9 are flappers, and 1
2.14 is a paper feed roller, and 13 is a forward/reverse transport roller. Applicant Canon Co., Ltd.

Claims (1)

【特許請求の範囲】 給送手段により送り出されたシートに画像形成した後に
中間ドレイ上・に載置し、該中間トレイ上から再給送手
段により再搬送するシート搬送装置において、 □ 該中間トレイ上から該再給送手段により再搬送された後
のシート搬送径路中に、シートを反転する径路とシート
を反転しない径路とにシートを選択的に導く切換手段を
配設したことを特徴としたシート搬送径路中。 、 ′
[Scope of Claims] A sheet conveying device that forms an image on a sheet sent out by a feeding means, places the sheet on an intermediate tray, and re-feeds the sheet from the intermediate tray by a re-feeding means, comprising: □ The intermediate tray. A switching means is disposed in the sheet conveying path after being re-conveyed by the re-feeding means from above to selectively guide the sheet to a path for reversing the sheet and a path for not reversing the sheet. During sheet conveyance path. , ′
JP58237282A 1983-12-16 1983-12-16 Sheet conveyor device Granted JPS60132863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58237282A JPS60132863A (en) 1983-12-16 1983-12-16 Sheet conveyor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58237282A JPS60132863A (en) 1983-12-16 1983-12-16 Sheet conveyor device

Publications (2)

Publication Number Publication Date
JPS60132863A true JPS60132863A (en) 1985-07-15
JPH0219072B2 JPH0219072B2 (en) 1990-04-27

Family

ID=17013076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58237282A Granted JPS60132863A (en) 1983-12-16 1983-12-16 Sheet conveyor device

Country Status (1)

Country Link
JP (1) JPS60132863A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62108342U (en) * 1985-12-26 1987-07-10
JPH01269949A (en) * 1988-04-21 1989-10-27 Ricoh Co Ltd Transfer paper conveying device
JP2014037311A (en) * 2012-08-20 2014-02-27 Fujifilm Corp Image forming apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5860760A (en) * 1981-10-07 1983-04-11 Ricoh Co Ltd Controlling method for copying machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5860760A (en) * 1981-10-07 1983-04-11 Ricoh Co Ltd Controlling method for copying machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62108342U (en) * 1985-12-26 1987-07-10
JPH0447179Y2 (en) * 1985-12-26 1992-11-06
JPH01269949A (en) * 1988-04-21 1989-10-27 Ricoh Co Ltd Transfer paper conveying device
JP2014037311A (en) * 2012-08-20 2014-02-27 Fujifilm Corp Image forming apparatus
US9108441B2 (en) 2012-08-20 2015-08-18 Fujifilm Corporation Image forming apparatus

Also Published As

Publication number Publication date
JPH0219072B2 (en) 1990-04-27

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