JPS62126062A - Copying machine - Google Patents

Copying machine

Info

Publication number
JPS62126062A
JPS62126062A JP26238785A JP26238785A JPS62126062A JP S62126062 A JPS62126062 A JP S62126062A JP 26238785 A JP26238785 A JP 26238785A JP 26238785 A JP26238785 A JP 26238785A JP S62126062 A JPS62126062 A JP S62126062A
Authority
JP
Japan
Prior art keywords
paper
copying
paper sheet
photosensitive drum
guide
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.)
Pending
Application number
JP26238785A
Other languages
Japanese (ja)
Inventor
Masaki Takahashi
正樹 高橋
Toshiyuki Watanabe
利之 渡辺
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP26238785A priority Critical patent/JPS62126062A/en
Publication of JPS62126062A publication Critical patent/JPS62126062A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/31—Features of transport path
    • B65H2301/312—Features of transport path for transport path involving at least two planes of transport forming an angle between each other
    • B65H2301/3125—T-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/448—Diverting
    • B65H2301/4482—Diverting to multiple paths, i.e. more than 2

Landscapes

  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Counters In Electrophotography And Two-Sided Copying (AREA)

Abstract

PURPOSE:To carry out both-surface copying or multiple copying for the paper sheet after one-side copying with high positioning precision by installing a positioning mechanism which shifts the copying paper sheet in the direction vertical to the transport direction and positions the paper sheet at a prescribed position on a photosensitive drum. CONSTITUTION:When a paper sheet 30 is sent to a paper sheet transporting guide 23, said paper sheet is aslantly sent towards a paper sheet side surface guide 25 installed on one side surface of the guide 23 from the regular feeding direction for the paper sheet 30 by the aslantly crossing rollers 24 in revolution. The aslantly sent paper sheet 30 is pressed onto the guide 25 and positioned, having the side surface as standard. Said positioning is performed by stopping the guide 25 at the position coinciding with the one side surface of the paper sheet 30 in the paper sheet cassettes 9a, 9b, and 9c. Therefore, the side surface of the paper sheet after copying which is sent onto a photosensitive drum 7, passing through a transport passage 22, can be arranged by the guide 25, and the position in the transverse direction of the not-yet-copied paper sheet in the cassettes 9a, 9b, and 9c is allowed to coincide with each other, and the position deflection between in the first and the second copying is not generated.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は多重複写機もしくは両面複写機に係り、特に第
１面に複写を完了し九複写用紙に再び複写を行なう際に
再給紙をする用紙給送装置を有する複写機に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a multiple copying machine or a double-sided copying machine, and in particular, the present invention relates to a multiplex copying machine or a double-sided copying machine, and particularly to a machine that refeeds paper when copying is completed on the first side and copying is performed again on a copy sheet. The present invention relates to a copying machine having a paper feeding device.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

近年、複写機の多機能化に対するニーズが高まシ、１台
の複写機で２色程度の多重複写や自動両面複写が可能で
ある複写機が要求されている。In recent years, there has been an increasing need for multi-functional copying machines, and a single copying machine is required to be capable of multiple copies of about two colors and automatic double-sided copying.

これらの要求に対し開発された複写機の多くは。Many of the copiers were developed to meet these demands.

用紙カセットにセットした用紙全給紙機構によって、用
紙にトナー像を転写する感光ドラム等による転写器に送
り込み、その後圧着ローラ等の定着器によって定着を行
なう、そして、多重あるいは両面の複写が選択されてい
る場合には、一度再給紙用トレイに集積し、再給紙機構
によって転写器へ送シ込んで２度目の複写全行なってい
る。A full paper feeding mechanism set in a paper cassette feeds the toner image onto the paper to a transfer device such as a photosensitive drum, which then fixes it using a fixing device such as a pressure roller. Then, multiple or double-sided copying is selected. If so, the sheets are stacked on the paper re-feeding tray and fed to the transfer device by the paper re-feeding mechanism for the second complete copying.

このような複写機では、２度目以降の複写を行なう際に
、前回の複写位置に対して前後左右のずれやスキューが
発生しないようにする対処が必要である。In such a copying machine, it is necessary to take measures to prevent longitudinal and lateral deviations and skews from occurring with respect to the previous copying position when performing second and subsequent copying.

これに対して従来は、複写用紙（以下用績と略称する）
の第１面に画像を転写、定着しｆｃｔ再給紙用トレイに
一度集積する際に、用紙の左右の不揃全整えていた。（
例えば特開昭５５−１１１３５５゜特開昭５７−１８９
９６３．特開昭５９−１４３８５３）このように、再給
紙用トレイに集積する際に位置決めをするものでは、再
給紙用トレイから用紙がローラ等によって取り出され、
再給紙機構によって搬送されて転写機に再度送り込まれ
る間に位置ずれが生じることがある。これはゴムローラ
の摩耗によって用紙の取ジ出し精度が低下したりするこ
とによるもので、いかに再給紙用トレイで精度良く位置
揃えしても防止することはできない。On the other hand, in the past, copy paper (hereinafter abbreviated as joki)
When transferring and fixing the image onto the first side of the paper and stacking it on the fct refeed tray, the left and right sides of the paper were corrected. (
For example, JP-A-55-111355゜ JP-A-57-189
963. JP-A-59-143853) In this way, in a device that positions the paper when stacking it on the re-feeding tray, the paper is taken out from the re-feeding tray by a roller or the like.
A positional shift may occur while the paper is being transported by the paper refeeding mechanism and sent to the transfer machine again. This is caused by the wear of the rubber rollers, which deteriorates the precision with which the paper is taken out, and cannot be prevented no matter how precisely the paper is aligned with the paper refeed tray.

特に多重複写で同一面に異なる色で２度以上にわ之って
複写を行なう場合には、用紙の微妙な位置ずれも問題と
なる。Particularly when multiple copies are made in different colors on the same surface twice or more, slight misalignment of the paper also poses a problem.

〔発明の目的〕 本発明は上記事情に鑑みてなされたもので、片面複写済
の用紙に、位置決め精度良く両面複写もしくは多重複写
を行なえる複写機を提供することを目的とする。[Object of the Invention] The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a copying machine that can perform double-sided copying or multiple copying with good positioning accuracy on a sheet that has already been copied on one side.

〔発明の概要〕[Summary of the invention]

上記目的を達成するために本発明においては。 In order to achieve the above object, the present invention.

複写用紙を感光ドラムまで搬送する第１の搬送経路と、
複写用紙に複写を終了した後、再複写するために複写用
紙を感光ドラムまで搬送する第２の搬送経路とを具備す
る複写機において、第２の搬送経路若しくは、第１の搬
送経路と第２の搬送経路が合流する搬送経路上の感光ド
ラムの略直前に、複写用紙を複写用紙の搬送方向と垂直
な方向に移動させて感光ドラムの所定の位置に合わせる
位置決め機構を設けたことを特徴とする複写機を提供す
る。a first conveyance path that conveys the copy paper to the photosensitive drum;
A copying machine comprising a second conveyance path for conveying the copy paper to a photosensitive drum for recopying after completing copying on the copy paper. The present invention is characterized by providing a positioning mechanism that moves the copy paper in a direction perpendicular to the conveyance direction of the copy paper and aligns it with a predetermined position on the photosensitive drum, substantially immediately before the photosensitive drum on the conveyance path where the conveyance paths of the above merge. Provide copiers that can

〔発明の実施例〕[Embodiments of the invention]

第１図は、両面複写及び多重複写機能全備えた複写機の
模式図を示しておシ、第１図を参照して本発明の複写機
の一実施例に係る構成及び一連の複写動作を説明する。FIG. 1 shows a schematic diagram of a copying machine that is fully equipped with double-sided copying and multiple copying functions. Referring to FIG. explain.

複写機上部におかれた原稿２は、２ンプ３に照明され、
その反射光６はミラー４ａ、４ｂ、４Ｃで走査される。The original 2 placed on the top of the copying machine is illuminated by the 2-amp 3,
The reflected light 6 is scanned by mirrors 4a, 4b, and 4C.

ミラー４ａとミラー４ｂ、４ｃは１：３／２の速度比で
移動することによってレンズ５の前方の光路長が常に一
定に保たれたｉｔ原稿２の走査が行なわれる。そして反
射光６はレンズ５゜ミラー４ｄ、４ｅ、４ｆから成る光
学投影手段によって感光ドラム７上に結像する。By moving the mirror 4a and the mirrors 4b and 4c at a speed ratio of 1:3/2, the IT original 2 is scanned with the optical path length in front of the lens 5 always kept constant. The reflected light 6 forms an image on the photosensitive drum 7 by an optical projection means consisting of a lens 5 and mirrors 4d, 4e, and 4f.

感光ドラム７は、帯電用チャージャ８によって均一に帯
電しているが１反射光６が感光ドラム７上に結像するこ
とによって静電潜像が形成される。Although the photosensitive drum 7 is uniformly charged by the charging charger 8, an electrostatic latent image is formed by one reflected light 6 forming an image on the photosensitive drum 7.

この感光ドラム７上の静電潜像は％　２色複写が可能な
ように２つ設けられている現像器１ａ、１ｂのどちらか
によって現像され、トナー像が形成される。This electrostatic latent image on the photosensitive drum 7 is developed by one of two developing devices 1a and 1b, which are provided to enable two-color copying, to form a toner image.

一方、各種サイズの用紙がセットされている用紙カ七ッ
）９ａ　、９ｂ　、９ｃのいずれか希望の未複写の用紙
が、給紙ローラ１０ａ、１０ｂ、ＩＯＣによって給紙経
路３１ｔ”通り複写機内に送られる。給紙ローラ１０ａ
、１０ｂ、ＩＯＣによって複写機内に送られてくる用紙
は、用紙力セラ）９ａ、９ｂ、９ｃにセットされ走時点
で用紙のセンターと感光ドラム７のセンターを略一致さ
せ、ある程度の位置決めがなされているが、レジストロ
ーラ１１によって先端が揃えられスキューが補正される
。そしてレジストローラ１１は、用紙の先端検知センサ
ー１２の信号に基ずいて、用紙と感光ドラム７の接触位
置が常に一致するように用紙を送り、これによって送り
方向のずれは生じないようになっている。On the other hand, a desired uncopied sheet of paper (7) 9a, 9b, 9c in which various sizes of paper are set is fed into the copying machine through the paper feed path 31t'' by the paper feed rollers 10a, 10b and IOC. Paper feed roller 10a
, 10b, the paper sent into the copying machine by the IOC is set in paper rollers 9a, 9b, and 9c, and the center of the paper and the center of the photosensitive drum 7 are approximately aligned at the time of travel, and the paper is positioned to a certain extent. However, the registration rollers 11 align the ends and correct the skew. Then, the registration roller 11 feeds the paper based on the signal from the paper leading edge detection sensor 12 so that the contact position between the paper and the photosensitive drum 7 always matches, thereby preventing deviation in the feeding direction. There is.

感光ドラム７上に形成されたトナー像は、転写用チャー
ジャ１３により用紙に転写され、定着ロー２１４によっ
てトナー像は永久的に定着させられ、−回目の複写が終
了する。The toner image formed on the photosensitive drum 7 is transferred onto a sheet of paper by the transfer charger 13, and the toner image is permanently fixed by the fixing row 214, thus completing the -th copying.

複写を片面に一度しか行なわない場合には、用紙は振り
分はゲート１５によシ排紙ローラ４５へ送られ、排紙ト
レイ１６にスタックされるが、両面複写又は多重複写を
行なう場合には、振り分はゲート１５によシ再給紙用ト
レイ１７にスタックするために再給紙経路２２へと搬送
される。再給紙経路２２全搬送された用紙は一度再給砥
用トレイ１７にスタックされ、次の複写を行なうために
用紙の取り出し時のみ下降して紙面に接触する取り出し
ローラ１８により振り分はゲート２１へ送り込まれる。When copying is to be performed only once on one side, the sheets are sent through the gate 15 to the paper discharge roller 45 and stacked on the paper discharge tray 16. However, when copying on both sides or multiple copies, , the allocated amount is conveyed through the gate 15 to the paper refeeding path 22 to be stacked on the paper refeeding tray 17. The paper that has been completely conveyed through the paper refeed path 22 is once stacked on the refeed grinding tray 17, and then distributed to the gate 21 by a takeout roller 18 that descends and comes into contact with the paper surface only when taking out the paper for the next copy. sent.

振り分はゲート２１によって、両面複写を行なうか多重
複写を行なうかが選択される。振り分はゲート２１の動
作を第２図及び第３図に示す。第１７に一度集積する際
には複写済の第１面の裏面（第２面）が表になっており
、断面三角形状の振り分はゲート２１が再給紙用トレイ
１７の方向へ傾むくと、用紙はループを描くように複写
機内を搬送され、矢印Ａの経路を通り、レジストローラ
１１に再び送り込まれる時には用紙の複写済の第１面が
感光ドラム７と向き合うようになり多重複写が行なわれ
る。As for allocation, a gate 21 selects whether double-sided copying or multiple copying is to be performed. The operation of the gate 21 is shown in FIGS. 2 and 3. When stacking once in the 17th step, the reverse side (second side) of the copied first side is facing up, and the gate 21 is tilted toward the paper refeeding tray 17 when the cross section is triangular. Then, the paper is conveyed inside the copying machine in a loop, passes through the path indicated by arrow A, and when it is sent to the registration roller 11 again, the copied first side of the paper faces the photosensitive drum 7, causing multiple copies to occur. It is done.

第３図は５両面複写を行なう場合の振シ分はゲート２１
の状態を示している。両面複写の場合には、まず嘔５分
はゲート２１は傾むかずに用紙は矢印Ｂのように反転部
１９へと通過して送られる。Figure 3 shows that when performing 5-sided copying, the distribution is at gate 21.
It shows the status of. In the case of double-sided copying, the gate 21 does not tilt for the first 5 minutes and the paper passes through the reversing section 19 as indicated by arrow B and is fed.

その後、振ｐ分はゲート２１が反転部１９の方へ傾き、
反転部１９から送られてくる用紙は矢印Ｃの経路を通り
、レジストローラ１１に再び送シ込まれる時には、複写
済の第１面の裏面（第２面）が感光ドラム７と向き合う
ようにな夛両面複写が行なえる。After that, the gate 21 tilts toward the reversing part 19 by the amount of the swing p,
The paper sent from the reversing unit 19 passes through the path of arrow C, and when it is fed again to the registration rollers 11, the reverse side (second side) of the copied first side faces the photosensitive drum 7. Double-sided copying is possible.

このように振り分はゲー）２１ｔ−制御することによっ
て多重複写もしくは両面複写が選択される。In this manner, multiple copying or double-sided copying is selected by controlling the distribution (game) 21t-.

Ｅｘ’）分はゲート２１からレジストローラ１１へ至る
再給紙経路２２には、用紙の位置決め機構２０ｔ−設け
ている。感光ドラム７から定着ローラ１４を経て、再給
紙経路２２によって再給紙用トレイ１７に一度スタック
される用紙は、かなり乱雑に堆積されるのでレジストロ
ーラ１１へ送り込まれる直前に用紙の側面部の位置決め
を行ない。Ex') is provided with a paper positioning mechanism 20t on the paper refeed path 22 from the gate 21 to the registration roller 11. The paper that is once stacked from the photosensitive drum 7 to the refeed tray 17 via the paper refeed path 22 via the fixing roller 14 is stacked quite randomly, so just before it is sent to the registration roller 11, the sides of the paper are stacked. Perform positioning.

用紙が用紙カセッ）９ａ、９ｂ、９ｃから送シ出される
時と同じ位置になるように補正している。The correction is made so that the paper is in the same position as when it is fed out from the paper cassettes 9a, 9b, and 9c.

第４図と第５図に位置決め機構２０の一実施例を示す。An embodiment of the positioning mechanism 20 is shown in FIGS. 4 and 5.

第４図と第５図において、用紙搬送ガイド２３の片側面
には用紙側面ガイド２５が一体的に取付けられている。In FIGS. 4 and 5, a paper side guide 25 is integrally attached to one side of the paper conveyance guide 23. As shown in FIGS.

用紙３０が用紙搬送ガイド２３ｔで送られてくると１回
転する斜交ロー、７２４によって、用紙３０を止血の送
り方向から用紙搬送ガイド２３の片側面に設けられた用
紙側面ガイド２５の方向へ斜めに送る。斜めに送られ次
用紙３０は、第４図（ａ）に破線で示すように用紙側面
ガイド２５に押し付けられて側面を基準とした位置決め
がなされる。斜交ローラ２４で用紙３０ｔ−用紙側面ガ
イド２５に押し付けて送るときに、用紙３０が撓まない
ように斜交ローラ２４の材質には適当な摩擦係数を持つ
スポンジ等が選択される。When the paper 30 is sent by the paper transport guide 23t, the oblique roller 724 rotates once, and the paper 30 is moved diagonally from the bleeding direction to the paper side guide 25 provided on one side of the paper transport guide 23. send to The next sheet 30 that has been fed obliquely is pressed against the sheet side guide 25 and positioned with the side surface as a reference, as shown by the broken line in FIG. 4(a). A sponge or the like having an appropriate coefficient of friction is selected as the material for the diagonal roller 24 so that the paper 30 does not bend when the diagonal roller 24 presses the paper 30t against the paper side guide 25 and sends it.

また、一般に複写位置基準は感光ドラム７のセンターで
あるため、上述の位置決め機構２０のように用紙の側面
を基準に位置決めするものでは、複写に使用す為用紙の
サイズに応じて用紙側面ガイド２５の位置が切り替れる
必要がある。In addition, since the copying position reference is generally the center of the photosensitive drum 7, in the positioning mechanism 20 described above, which positions the paper using the side surface as a reference, the paper side guide 25 is set according to the size of the paper used for copying. The position of should be switched.

そこで第５図に示すように、用紙搬送ガイド２３に支持
ガイド２９を設け、支持ガイド２９を支持棒２８で支持
することによって用紙面に平行移動可能とし、用紙搬送
ガイド２３に取シ付けたラック２７をステップモータ２
６で送ることによりて、用紙側面ガイド２５を移動させ
、用紙のセンタを感光ドラム７のセンタに位置合わせす
る。Therefore, as shown in FIG. 5, a support guide 29 is provided on the paper transport guide 23, and by supporting the support guide 29 with a support rod 28, it can be moved parallel to the paper surface, and a rack attached to the paper transport guide 23 is installed. 27 to step motor 2
6, the paper side guide 25 is moved and the center of the paper is aligned with the center of the photosensitive drum 7.

なお、ステップモータ２６の回転量の制御は、ボタン操
作による用紙サイズ選定信号によって決定される。Note that control of the amount of rotation of the step motor 26 is determined by a paper size selection signal generated by button operation.

これによって用紙のサイズが変わっても感光ドラム７と
用紙のセンタは一致する。As a result, even if the paper size changes, the center of the photosensitive drum 7 and the paper coincide.

再給紙経路２２における用紙の側面部の位置決第６図と
第７図はそれぞれ１位置決め機構２０と用紙カセッ）９
ａ、９ｂ、９ｃの位置を示すための上面図及び側面図で
ある。Positioning of the side surface of the paper in the paper refeeding path 22 (FIGS. 6 and 7) shows the positioning mechanism 20 and paper cassette 9, respectively.
FIG. 6 is a top view and a side view showing the positions of a, 9b, and 9c.

用紙３０の搬送方向と垂直な方向に移動可能な用紙側面
ガイド２５を用紙カセッ）９ａ、９ｂ。The paper side guide 25, which is movable in a direction perpendicular to the conveying direction of the paper 30, is connected to the paper cassette (9a, 9b).

９Ｃ内の用紙３０の片側面に一致する位置に停止させる
。このようにすることによって、再搬送経路２２を通っ
て感光ドラム７に送られる第１回目複写法の用紙は、用
紙側面ガイド２５に側面を揃とができ、第１回目の複写
と第２回目の複写とで位置ずれが生じない。It is stopped at a position that corresponds to one side of the paper 30 in 9C. By doing this, the paper for the first copying process sent to the photosensitive drum 7 through the re-conveying path 22 can have its side aligned with the paper side guide 25, and the paper for the first copying and the second copying There is no positional shift between the copy and the copy.

以上のように、用紙の位置決め機構２０によって用紙の
複写位置の左右のずれは補正され、用紙の送り方向のず
れとスキニーは、先述の先端検知センサー１２の信号に
基ずいた紙送りと、レジストローラ１１により複圧され
る。したがって２両面複写及び多重複写を行なう場合に
複写位置のずれは極めて小さいものとなる。As described above, the paper positioning mechanism 20 corrects the left and right misalignment of the copying position of the paper, and the misalignment and skinny in the paper feeding direction are corrected by paper feeding based on the signal from the leading edge detection sensor 12 mentioned above and registration. Double pressure is applied by the roller 11. Therefore, when performing two-sided copying and multiple copying, the deviation of the copying position is extremely small.

〔発明の他の実施例〕[Other embodiments of the invention]

次に第８図を参照して本発明の他の実施例を説明するが
第１図と同一部分あるいは相当する部分には同一符号を
付して、その説明は省略する。Next, another embodiment of the present invention will be described with reference to FIG. 8, but the same or corresponding parts as in FIG. 1 are given the same reference numerals, and the explanation thereof will be omitted.

第８図においては、位置決め機構２０ｔ−設ける位置は
、用紙カセッ）９ａ、９ｂ、９Ｃから未複写の用紙が送
り出され給紙ローラ１０ａ、１０ｂ、１０Ｃを経て搬送
される給紙経路３１と両面複写もしくは多重複写を行な
う際に振り分はゲー）２１ｔ−通過して搬送される再給
紙経路２２の合流点４０とレジストローラ１１の間に設
けられている。In FIG. 8, the positions where the positioning mechanism 20t is provided are the paper feed path 31 where uncopied paper is sent out from paper cassettes 9a, 9b, and 9C and conveyed via paper feed rollers 10a, 10b, and 10C, and the double-sided copying Alternatively, when multiple copying is performed, the distribution amount is 21t.

とのような位置に位置決め機構２０を設けることによっ
て、従来第１回目の複写の際、用紙の左右方向の位置決
めは、用紙力セラ）９ａ　、　９ｂ　、　９Ｃに用紙を
セットすることのみで行なっていたのを。By providing the positioning mechanism 20 at the position shown in FIG. It was.

レジストローラ１１に送り込まれる直前に位置決め機構
２０によって用紙の左右方向の位置合わせが精度良く行
なえる。Immediately before the paper is fed into the registration rollers 11, the positioning mechanism 20 can accurately align the paper in the left and right direction.

そして先端検知センサー】２及びレジストローラ１１に
よりて、用紙の送ジ方向の位置合わせ及びスキューの補
正が行なわれ、感光ドラム７と用紙のセンタが常に一致
する。Then, the leading edge detection sensor 2 and the registration roller 11 perform positioning of the paper in the feeding direction and correction of skew, so that the center of the photosensitive drum 7 and the paper always coincide.

また、両面複写もしくは多重複写が行なわれる場合にも
用紙は振り分はゲート２１を通過したのち、合流点４０
ｔ−通り、第１回目の複写時と同一の経路を通過し、同
じ位置決め機［２０，先端検知センサー１２及びレジス
トローラ１１によって。Furthermore, even when double-sided copying or multiple copying is performed, the paper is sorted after passing through the gate 21 at the confluence point 40.
t-way, passing through the same path as in the first copying and using the same positioning machine [20, leading edge detection sensor 12 and registration roller 11].

第１回目の複写時と同一の位置合わせが行なわれるため
、両面複写のみならず用紙の同一面への多重複写も位置
ずれすることなく行なうことができる。Since the same positioning as in the first copying is performed, not only double-sided copying but also multiple copies on the same side of the paper can be performed without positional deviation.

次に位置決め機′ａ２０の他の実施例ｔ−第９図と第１
０図を参照して説明する。Next, another embodiment of the positioning machine 'a20--FIGS. 9 and 1
This will be explained with reference to FIG.

側板３３ａ、３３ｂには支持ガイド３９がそれぞれ設け
られ、支持ガイド３９を支持棒３８で支持するととによ
ッテ、側板３３ａ、３３ｂＶｉｂ用紙３ｏの送シ方向（
矢印Ｄ）と垂直な矢印Ｅ方向に往復移動することができ
る。Support guides 39 are provided on the side plates 33a and 33b, respectively, and when the support guides 39 are supported by the support rods 38, the side plates 33a and 33b are moved in the feeding direction of the paper 3o (
It is possible to reciprocate in the direction of arrow E perpendicular to arrow D).

また、側板３３ａ、３３ｂにラック３５ａ、３５ｂ？取
付け、これらラック３５ａ、３５ｂにかみ合う歯車３６
をステップモータ３４で駆動することによって側板３３
ａ、３３ｂを矢印Ｅ方向に連動して移動させる。Moreover, racks 35a, 35b are attached to the side plates 33a, 33b. Attachment, gears 36 meshing with these racks 35a, 35b
By driving the step motor 34, the side plate 33
a and 33b are moved in conjunction with each other in the direction of arrow E.

用紙３０は、用紙カセット９　ａ　、　９　ｂ　、、　
９　ｃから矢印りの方向へ送られブラシローラ３２によ
って搬送され、搬送されている膣中に両側板３３ａ、３
３ｂが移動して前述の実施例と同様に感光ドラム７と用
紙３０のセンターが揃えられる。The paper 30 is stored in paper cassettes 9a, 9b, .
It is sent from 9c in the direction of the arrow and is conveyed by the brush roller 32, and both side plates 33a, 3 are conveyed into the vagina being conveyed.
3b moves to align the centers of the photosensitive drum 7 and the paper 30 as in the previous embodiment.

ここで、側板３３ａ、３３ｂは用紙３０が搬送されてく
るまでは、用紙３０の幅よシも若干量いた位置とし、両
側板３３ａ、３３ｂの間隔が最も狭くなったときに用紙
３００幅と一致するようにステップモータ２４を制御す
ればよいり このように用紙の位置決め機構２０ｔ−ｍ１回目の複写
を行なう際の給紙経路３１と、多重複写もしくは両面複
写の際の第２回目の複写を行なう際の再給紙経路２２の
合流点４０とレジストローラ１１の間に設けることによ
って、第１回目の複写の際の感光ドラム７と用紙の位置
と第２回目の複写の際の感光ドラム７と用紙の位置を、
極めて精度良く一致させることができる。Here, the side plates 33a and 33b are at a position slightly larger than the width of the paper 30 until the paper 30 is conveyed, and when the distance between the side plates 33a and 33b becomes the narrowest, the width matches the width of the paper 300. The step motor 24 can be controlled as shown in FIG. By providing the position between the confluence 40 of the paper refeed path 22 and the registration roller 11, the positions of the photosensitive drum 7 and paper during the first copying and the positions of the photosensitive drum 7 and paper during the second copying can be changed. the position of
Matching can be achieved with extremely high accuracy.

なお、用紙の位置決め機構２０を設ける位置は、レジス
トローラ１１と感光ドラム７の間に設けてもよい。すな
わち、本発明では用紙の位置決め機構２０’に再給紙用
トレイ１７（用紙力セラ）９ａ。Note that the paper positioning mechanism 20 may be provided between the registration roller 11 and the photosensitive drum 7. That is, in the present invention, the paper positioning mechanism 20' includes the paper refeeding tray 17 (paper storage) 9a.

９ｂ　、９ｃと兼ねることも可能）と感光ドラム７の搬
送経路間に設け、（望ましくは感光ドラム７又はレジス
トローラ１１の直前に設け）感光ドラジ ム７で用紙に転写する直前に用紙と感光ドラム７の位置
合わせを行なうものである。9b, 9c) and between the transport path of the photosensitive drum 7 (preferably provided immediately before the photosensitive drum 7 or the registration roller 11), the paper and the photosensitive drum 7 are placed between the paper and the photosensitive drum 7 immediately before being transferred to the paper by the photosensitive drum 7. This is to perform positioning.

また１位置決め機構２０は実施例に示した構造のものに
限らないことは明白である。Furthermore, it is clear that the first positioning mechanism 20 is not limited to the structure shown in the embodiment.

〔発明の効果〕〔Effect of the invention〕

以上詳述してきたように本発明によれば、両面複写を行
なう場合には表裏面の複写画像を同位置にすることがで
き、多重複写を行なう場合には画像重ねが精度良く行な
える。As described in detail above, according to the present invention, when double-sided copying is performed, the copied images on the front and back sides can be placed at the same position, and when multiple copies are performed, images can be overlapped with high accuracy.

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

第１図は５本発明の複写機の一実施例を示す模式図、第
２図と第３図は、本発明に係る振シ分はゲートの動作説
明図、第４図と第５図は１本発明に係る位置決め機構の
一実施例を示す平面図、側面図及び斜視図、第６図と第
７図は１本発明に係る位置決め機構と用紙カセットの位
＊−係を説明する平面図及び側面図、第８図は、本発明
の複写機の他の実施例を示す模式図、第９図と第１０図
は２本発明に係る位置決め機構の他の実施例を示す斜視
図である。 ７・・・感光ドラム　　　　ｇ３，９ｂ、９Ｃ・・・用
紙カセット１１・・・レジストローラ １７・・・再給紙用トレイ　２０・・・位置決め機構２
１・・・振シ分はゲート２２・・再給紙経路（第２の搬
送経路）３１・・・給紙経路（第１の搬送経路）４０・
・・合流点 代理人　弁理士　則　近　憲　佑 同　竹　花　喜久男 第　　４　図 第　　５　　図FIG. 1 is a schematic diagram showing one embodiment of the copying machine of the present invention, FIGS. 2 and 3 are illustrations of the operation of the distribution gate according to the present invention, and FIGS. 4 and 5 are 1 A plan view, a side view, and a perspective view showing an embodiment of the positioning mechanism according to the present invention, and FIGS. 6 and 7 are plan views illustrating the positioning mechanism of the positioning mechanism according to the present invention and the paper cassette. and a side view, FIG. 8 is a schematic diagram showing another embodiment of the copying machine of the present invention, and FIGS. 9 and 10 are perspective views showing two other embodiments of the positioning mechanism according to the present invention. . 7... Photosensitive drum g3, 9b, 9C... Paper cassette 11... Registration roller 17... Paper refeed tray 20... Positioning mechanism 2
1... The distribution portion is gate 22... Paper refeeding route (second transport route) 31... Paper feeding route (first transport route) 40.
...Confluence agent Patent attorney Nori Chika Ken Yudo Kikuo Takehana Figure 4 Figure 5

Claims (2)

【特許請求の範囲】[Claims] （１）複写用紙を感光ドラムまで搬送する第１の搬送経
路と、前記複写用紙に複写を終了した後、再複写するた
めに前記複写用紙を前記感光ドラムまで搬送する第２の
搬送経路とを具備する複写機において、前記第２の搬送
経路若しくは、前記第１の搬送経路と前記第２の搬送経
路が合流する搬送経路上の前記感光ドラムの略直前に、
前記複写用紙を前記複写用紙の搬送方向と垂直な方向に
移動させて前記感光ドラムの所定の位置に合わせる位置
決め機構を設けたことを特徴とする複写機。(1) A first conveyance path that conveys the copy paper to the photosensitive drum, and a second conveyance path that conveys the copy paper to the photosensitive drum for re-copying after copying has been completed on the copy paper. In the copying machine, substantially immediately before the photosensitive drum on the second conveyance path or the conveyance path where the first conveyance path and the second conveyance path merge,
A copying machine comprising a positioning mechanism that moves the copy paper in a direction perpendicular to the conveyance direction of the copy paper and aligns the copy paper with a predetermined position on the photosensitive drum. （２）前記感光ドラムの直前に前記複写用紙のスキュー
補正用のレジストローラを設け、前記位置決め機構を前
記レジストローラの略直前に設けたことを特徴とする特
許請求の範囲第１項記載の複写機。(2) Copying according to claim 1, characterized in that a registration roller for skew correction of the copy paper is provided immediately before the photosensitive drum, and the positioning mechanism is provided substantially immediately before the registration roller. Machine.
JP26238785A 1985-11-25 1985-11-25 Copying machine Pending JPS62126062A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26238785A JPS62126062A (en) 1985-11-25 1985-11-25 Copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26238785A JPS62126062A (en) 1985-11-25 1985-11-25 Copying machine

Publications (1)

Publication Number Publication Date
JPS62126062A true JPS62126062A (en) 1987-06-08

Family

ID=17375050

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26238785A Pending JPS62126062A (en) 1985-11-25 1985-11-25 Copying machine

Country Status (1)

Country Link
JP (1) JPS62126062A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6419365A (en) * 1987-07-14 1989-01-23 Canon Kk Image forming device
JPH01269949A (en) * 1988-04-21 1989-10-27 Ricoh Co Ltd Transfer paper conveying device
JPH07187470A (en) * 1993-12-24 1995-07-25 Kofu Nippon Denki Kk Conveyance branching mechanism for paper sheets
JP2009286587A (en) * 2008-05-30 2009-12-10 Fuji Xerox Co Ltd Carrying device and image forming device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6419365A (en) * 1987-07-14 1989-01-23 Canon Kk Image forming device
JPH01269949A (en) * 1988-04-21 1989-10-27 Ricoh Co Ltd Transfer paper conveying device
JPH07187470A (en) * 1993-12-24 1995-07-25 Kofu Nippon Denki Kk Conveyance branching mechanism for paper sheets
JP2009286587A (en) * 2008-05-30 2009-12-10 Fuji Xerox Co Ltd Carrying device and image forming device
US7905483B2 (en) 2008-05-30 2011-03-15 Fuji Xerox Co., Ltd. Transport device and image forming apparatus

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