JP2004286903A - Paper ejection apparatus and image forming apparatus - Google Patents

Paper ejection apparatus and image forming apparatus Download PDF

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Publication number
JP2004286903A
JP2004286903A JP2003076750A JP2003076750A JP2004286903A JP 2004286903 A JP2004286903 A JP 2004286903A JP 2003076750 A JP2003076750 A JP 2003076750A JP 2003076750 A JP2003076750 A JP 2003076750A JP 2004286903 A JP2004286903 A JP 2004286903A
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JP
Japan
Prior art keywords
sheet
paper
tab
sheets
printed
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
JP2003076750A
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Japanese (ja)
Inventor
Tatsuya Shiraishi
竜也 白石
Yasushi Hashimoto
靖司 橋本
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.)
Ricoh Printing Systems Ltd
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Hitachi Printing Solutions 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 Hitachi Printing Solutions Inc filed Critical Hitachi Printing Solutions Inc
Priority to JP2003076750A priority Critical patent/JP2004286903A/en
Publication of JP2004286903A publication Critical patent/JP2004286903A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper ejection apparatus capable of stacking printed sheets of paper on a paper loading table in order in accordance with the printing direction of a tab sheet in a printing job in which tab sheets and normal printed sheets are mixed. <P>SOLUTION: When discharging a printing job in which a tab sheet is mixed, a paper aligning member arranged above the paper loading table and on the downstream of the paper traveling direction and capable of regulating the traveling direction position of sheets by reciprocally sliding in the paper traveling direction is moved to the downstream side by the sending direction length of the tab part of the tab sheet and printing data are developed from the final page of the printing job. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、複写機、レーザビームプリンタ等の画像形成装置の後段に接続される排紙装置及びこれを備えた画像形成装置に関するものである。
【0002】
【従来の技術】
排紙装置は、画像形成装置の後段に設けられ、画像形成装置から出力される印刷済用紙を揃えて積み重ねていくものである。この排紙装置は、製本等の後処理を考慮し、用紙進行方向及び用紙進行方向の垂直方向(用紙幅方向)に用紙を不揃なく整列させる必要がある。
【0003】
タブシートが混在する印刷ジョブを揃える為の排紙装置として次ぎの構成のものが知られている。用紙積載テーブル上方に独立に設けられ、用紙進行方向に配置された用紙整列部材(以下先端ストッパという)を有し、先端ストッパは用紙進行方向に往復摺動可能であり、先端ストッパは、前記用紙取扱装置にタブシートが混在した印刷ジョブが排出される際には、図3の如く、タブシートのタブ部の送り方向長さ分だけ下流方向に移動した位置に停止し、また、タブシートが混在しないジョブでは、用紙が用紙積載テーブルに積載された直後に、用紙積載位置から用紙進行方向に所定距離はなれた待機位置と前記用紙積載位置の端部近傍との間を往復摺動する。また、タブシートが混在した印刷ジョブにおいて、印刷されたタブシートは、タブシートのタブ部が用紙進行方向上流側を向くように用紙積載テーブル上に排出される。
【0004】
【発明が解決しようとする課題】
上記従来の構成においては、タブシートが混在された印刷ジョブにおいて、印刷されたタブシートは、タブシートのタブ部が用紙進行方向上流側を向くように用紙積載テーブル上に排出される為、図5の如くタブシート以外の通常の印刷済用紙は印刷データが用紙積載テーブル上では、下側から上側への並びになってしまう。
【0005】
本発明は、上記課題に鑑みて為されたものであり、タブシートと通常の印刷済用紙が混在した用紙ジョブにおいて、印刷済用紙が用紙積載テーブル上でタブシートの印刷方向に合わせて順序正しく積載するようにすることを目的とする。
【0006】
【課題を解決するための手段】
上記の目的は、用紙整列部材を、タブシートが混在する印刷ジョブが排出される際には、タブシートのタブ部の送り方向長さ分だけ下流方向に移動し、且つ、印刷データを印刷ジョブの最後のページから展開することによって達成される。
【0007】
【発明の実施の形態】
以下図面に基づいて、本発明を具体化した実施例を説明する。図1、図2に示すように、排紙装置2は、複写機及びレーザプリンタなどの画像形成装置3の後方に配置されており、該画像形成装置3から送り込まれてくる印刷済用紙1を次段にオペレータ側又は、反オペレータ側に振り分け送り出す用紙搬送ローラ対4と、昇降移動可能に支持され用紙搬送ローラ対4から送り出されてくる印刷済用紙1を積み重ね収容する用紙積載テーブル6と、スタック部用紙進行方向に平行に配置され印刷済用紙1の進行方向に平行な両端エッジ部を繰り返し押し付けることにより印刷済用紙1を用紙進行方向と直交方向に整列させる摺動可能な用紙整列部材(以下ジョガーという)7と、スタック部用紙進行方向と直交方向に配置され、印刷済用紙1の先端部を繰り返し押し付けることにより、用紙1を用紙進行方向に整列させる摺動可能な先端ストッパ8と、ジョガー7の位置検出手段17と、先端ストッパ8の位置検出手段18と、用紙積載テーブル6上の印刷済用紙1の後端部を直交方向に押し付ける回転部材9と、回転部材9近傍の一定位置に立設固定された櫛歯状の用紙整列部材(以下用紙後端ストッパという。)15と、用紙積載テーブル6上に排出された印刷済用紙1の上面を押える為に複数個配列された用紙上面押えローラ5と、用紙積載面上面を検知する検出手段10とから構成される。用紙積載テーブル6は昇降可能に設けられたテーブルアーム11の上に着脱自在に設けられており、用紙積載テーブル6上に所定量の用紙が積載された際には、テーブルアーム11から用紙積載テーブル6ごと取り外してオペレータが運搬できるようになっている。用紙積載テーブル6にはジョガー7と印刷済用紙1の空振り防止の為の用紙後端突起部16が設けられている。ジョガー7及び先端ストッパ8は、モータ12からの動力を、動力伝達ベルト13、駆動シャフト14を介してスタックされる印刷済用紙1のサイズにあわせて摺動される。また、回転部材9は図示しないモータ12からの動力を、図示しない動力伝達ベルト、駆動シャフトを介して回転される。画像形成装置3にてタブシート19(タブ部20を含む)と通常の印刷用紙が混在した印刷ジョブの印刷が開始されると反オペレータ側ジョガー(以下リアジョガーという。)7a、オペレータ側ジョガー(以下フロントジョガーという。)7b及び先端ストッパ8は、それぞれの位置検出手段にてホームポジション位置を検出し、印刷される用紙サイズに併せて規定の位置に移動する。先端ストッパ8は印刷済用紙1がジョブシフトされる方向に関係なく、混在されるタブシート19のサイズに合わせてタブシート19の進行方向先端部エッジに接する位置近傍まで移動し停止する。タブシート19と通常の印刷済用紙1が用紙搬送ローラ対4から排出され、先端ストッパ8がストッパとなり用紙の送り方向を整列させる。用紙の送り方向と直角な方向については、用紙積載テーブル6上にスタックされた直後に反オペレータ側へのジョブシフトの際はリアジョガー7aが、オペレータ側へのジョブシフトの際はフロントジョガー7bがそれぞれ相対する各用紙エッジ部方向に用紙を押込みジョガー7の場合は停止側のジョガー7がストッパとなりタブシート19及び印刷済用紙1を整列させる。又動作側のジョガー7が相対する用紙エッジ部を各ストッパ迄押込み待機位置に戻る往復動作を排紙装置に搬送されてくる印刷済用紙1枚毎に繰り返す。
【0008】
又、リアジョガー7a及びフロントジョガー7bの往復動作側待機位置の規定量を印刷済用紙1の進行方向に平行なエッジ部から9〜10mmにし、その位置から相対する用紙エッジ部に接する位置まで往復動作を行う。
【0009】
さらに、タブシート19が混在しないジョブでは、先端ストッパ8は、印刷済用紙1が用紙積載テーブル6上に積載された直後に、用紙積載位置から用紙進行方向に所定距離はなれた待機位置と前記用紙積載位置の端部近傍との間を往復摺動させている。
【0010】
次に、図4を用いて片面印刷する場合について説明する。印刷用紙21とタブシート19は、各々別々の給装置紙装置にセットされ、印刷用紙21に印字されるジョブの切れ目で、タブシート19は仕分けの為、ジョブの間に挿入される。
【0011】
22は電子写真方式による印刷装置の感光体ドラムである。図示しない制御装置により印刷データは図示しない光学式書込み装置により、前記感光体ドラム22上に書込まれ、図示しない現像装置により可視化したトナー像となり印刷用紙21に転写、定着することで印刷される。印刷された用紙21はフェースアップで排紙装置2の用紙積載テーブル6上に積載される。ここで、印刷データを最後のページから展開することにより、用紙積載テーブル6上の印刷用紙21に印字されたデータは、ページ順に積載可能となる。
【0012】
【発明の効果】
以上説明したように、本発明によれば、タブシートが混在した印刷ジョブにおいて、印刷済用紙が用紙積載テーブル上でタブシートの印刷方向に合わせ順序正しく積載することが出来る。
【図面の簡単な説明】
【図1】本発明の実施例である排紙装置の用紙積載部を示す正面構成図である。
【図2】本発明の実施例である排紙装置の用紙積載部を示す側面構成図である。
【図3】本発明の実施例である排紙装置の用紙積載部を示す上面構成図である。
【図4】本発明の実施例である画像形成装置の印刷用紙の片面印刷時の用紙積載状態を示す側面構成図である。
【図5】従来の画像形成装置の印刷用紙の片面印刷時の用紙積載状態を示す側面構成図である。
【符号の説明】
1は印刷済用紙、2は排紙装置、3は画像形成装置、4は用紙搬送ローラ、5は用紙上面押えローラ、6は用紙積載テーブル、7はジョガー、7aはリアジョガー、7bはフロントジョガー、8は先端ストッパ、9は回転部材、10は積載用紙上面検出手段、11はテーブルアーム、12はモータ、13は動力伝達ベルト、14は駆動シャフト、15は用紙後端ストッパ、16は用紙後端突起部、17は、ジョガー位置検出手段、18は先端ストッパ検出手段、19はタブシート、20はタブシートのタブ部、21は印刷用紙、22は感光体ドラム、23は印字面である。
[0001]
TECHNICAL FIELD OF THE INVENTION
1. Field of the Invention The present invention relates to a paper discharge device connected to a subsequent stage of an image forming apparatus such as a copying machine and a laser beam printer, and an image forming apparatus having the same.
[0002]
[Prior art]
The paper discharging device is provided at a subsequent stage of the image forming apparatus, and is for stacking printed sheets output from the image forming apparatus. In this paper discharging apparatus, it is necessary to align the papers in the paper advancing direction and the vertical direction (the paper width direction) in the paper advancing direction in consideration of post-processing such as bookbinding.
[0003]
The following configuration is known as a paper discharge device for preparing a print job in which tab sheets are mixed. A sheet aligning member (hereinafter referred to as a leading end stopper) independently provided above the sheet loading table and arranged in the sheet traveling direction; the leading end stopper is reciprocally slidable in the sheet traveling direction; When a print job in which tab sheets are mixed is discharged to the handling apparatus, as shown in FIG. 3, the print job is stopped at a position shifted downstream by the length of the tab portion of the tab sheet in the feed direction, and a job in which tab sheets are not mixed. Then, immediately after the sheets are stacked on the sheet stacking table, the sheet slides back and forth between a standby position separated from the sheet stacking position by a predetermined distance in the sheet advancing direction and near the end of the sheet stacking position. In a print job in which tab sheets are mixed, the printed tab sheets are discharged onto the sheet stacking table such that the tabs of the tab sheets face upstream in the sheet traveling direction.
[0004]
[Problems to be solved by the invention]
In the above-described conventional configuration, in a print job in which tab sheets are mixed, the printed tab sheets are discharged onto the sheet stacking table such that the tab portions of the tab sheets face the upstream side in the sheet traveling direction. For ordinary printed sheets other than the tab sheet, the print data is arranged from the lower side to the upper side on the sheet stacking table.
[0005]
The present invention has been made in view of the above problems, and in a paper job in which tab sheets and normal printed paper are mixed, printed papers are stacked on a paper loading table in order according to the printing direction of the tab sheets. The purpose is to be.
[0006]
[Means for Solving the Problems]
The above object is to move the sheet aligning member in the downstream direction by the length in the feed direction of the tab portion of the tab sheet when the print job in which the tab sheet is mixed is discharged, and to print the print data at the end of the print job. Achieved by expanding from the page.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, a paper discharging device 2 is disposed behind an image forming device 3 such as a copying machine and a laser printer, and prints out the printed paper 1 sent from the image forming device 3. A sheet transport roller pair 4 for distributing and sending the sheet to the operator side or the non-operator side in the next stage, a sheet loading table 6 which is supported so as to be able to move up and down and stacks and stores the printed sheets 1 sent out from the sheet transport roller pair 4; A slidable paper alignment member that aligns the printed paper 1 in a direction orthogonal to the paper traveling direction by repeatedly pressing both edge portions that are arranged parallel to the paper traveling direction of the stack unit and that are parallel to the traveling direction of the printed paper 1 ( 7 is disposed in a direction orthogonal to the paper traveling direction of the stack unit, and the leading edge of the printed paper 1 is repeatedly pressed to advance the paper 1 The slidable leading end stopper 8, which is aligned in the direction, the position detecting means 17 of the jogger 7, the position detecting means 18 of the leading end stopper 8, and the rear end of the printed sheet 1 on the sheet stacking table 6 are orthogonally moved. A rotating member 9 to be pressed, a comb-shaped sheet aligning member (hereinafter referred to as a sheet trailing end stopper) 15 erected and fixed at a fixed position near the rotating member 9, and a printed sheet discharged onto the sheet loading table 6. The apparatus includes a plurality of paper upper surface pressing rollers 5 arranged to press the upper surface of the paper 1 and a detecting means 10 for detecting the upper surface of the paper stacking surface. The sheet stacking table 6 is detachably provided on a table arm 11 which is provided to be able to move up and down. When a predetermined amount of sheets is stacked on the sheet stacking table 6, the sheet stacking table 6 is moved from the table arm 11 to the sheet stacking table. 6 can be removed and transported by the operator. The sheet stacking table 6 is provided with a jogger 7 and a sheet trailing end projection 16 for preventing the printed sheet 1 from swinging. The jogger 7 and the tip stopper 8 slide the power from the motor 12 according to the size of the printed paper 1 stacked via the power transmission belt 13 and the drive shaft 14. The rotating member 9 rotates power from a motor 12 (not shown) via a power transmission belt and a drive shaft (not shown). When printing of a print job in which the tab sheet 19 (including the tab portion 20) and the normal printing paper are mixed is started in the image forming apparatus 3, the non-operator-side jogger (hereinafter referred to as a rear jogger) 7a and the operator-side jogger (hereinafter referred to as a front side). The position of the home position is detected by the respective position detecting means, and the leading end stopper 8 moves to a prescribed position in accordance with the size of the paper to be printed. The leading edge stopper 8 moves to a position near the leading edge of the tab sheet 19 in the traveling direction and stops in accordance with the size of the mixed tab sheet 19 regardless of the direction in which the printed sheet 1 is shifted. The tab sheet 19 and the normal printed sheet 1 are discharged from the sheet conveying roller pair 4, and the leading end stopper 8 acts as a stopper to align the sheet feeding direction. As for the direction perpendicular to the sheet feeding direction, the rear jogger 7a is used when the job is shifted to the side opposite to the operator immediately after the sheet is stacked on the sheet stacking table 6, and the front jogger 7b is used when the job is shifted to the operator. In the case of the jogger 7 which pushes the paper in the direction of the respective paper edge portions facing each other, the jogger 7 on the stop side acts as a stopper to align the tab sheet 19 and the printed paper 1. The reciprocating operation in which the jogger 7 on the operation side pushes the opposing sheet edge portion to each stopper and returns to the standby position is repeated for each printed sheet conveyed to the sheet discharging device.
[0008]
In addition, the specified amount of the reciprocating operation side standby position of the rear jogger 7a and the front jogger 7b is set to 9 to 10 mm from an edge parallel to the traveling direction of the printed paper 1 and the reciprocating operation is performed from that position to a position in contact with the opposite paper edge. I do.
[0009]
Further, in the job in which the tab sheets 19 are not mixed, the leading end stopper 8 moves the sheet stacking position to a standby position at a predetermined distance from the sheet stacking position in the sheet advancing direction immediately after the printed sheets 1 are stacked on the sheet stacking table 6. It reciprocates between the position and the vicinity of the end.
[0010]
Next, the case of single-sided printing will be described with reference to FIG. The printing sheet 21 and the tab sheet 19 are set in separate feeding device paper devices, and are cut between jobs printed on the printing sheet 21. The tab sheet 19 is inserted between jobs for sorting.
[0011]
Reference numeral 22 denotes a photosensitive drum of an electrophotographic printing apparatus. Print data is written on the photosensitive drum 22 by an optical writing device (not shown) by a control device (not shown), becomes a toner image visualized by a developing device (not shown), and is printed by being transferred and fixed to the printing paper 21. . The printed paper 21 is loaded face up on the paper loading table 6 of the paper discharge device 2. Here, by expanding the print data from the last page, the data printed on the printing paper 21 on the paper loading table 6 can be stacked in the page order.
[0012]
【The invention's effect】
As described above, according to the present invention, in a print job in which tab sheets are mixed, printed sheets can be stacked on the sheet stacking table in a proper order in accordance with the printing direction of the tab sheets.
[Brief description of the drawings]
FIG. 1 is a front configuration diagram illustrating a sheet stacking unit of a sheet discharging device according to an embodiment of the present invention.
FIG. 2 is a side view illustrating a sheet stacking unit of the sheet discharging device according to the embodiment of the invention.
FIG. 3 is a top view illustrating a sheet stacking unit of the sheet discharging device according to the embodiment of the invention.
FIG. 4 is a side view illustrating a state in which the image forming apparatus according to the exemplary embodiment of the present invention is loaded with a single-sided print sheet in a single-side printing mode.
FIG. 5 is a side view illustrating a state in which a conventional image forming apparatus is loaded with printing paper during single-sided printing.
[Explanation of symbols]
1 is a printed sheet, 2 is a sheet discharging device, 3 is an image forming apparatus, 4 is a sheet conveying roller, 5 is a sheet upper surface pressing roller, 6 is a sheet loading table, 7 is a jogger, 7a is a rear jogger, 7b is a front jogger, 8 is a leading end stopper, 9 is a rotating member, 10 is a stacked paper upper surface detecting means, 11 is a table arm, 12 is a motor, 13 is a power transmission belt, 14 is a drive shaft, 15 is a paper rear end stopper, and 16 is a paper rear end. Reference numeral 17 denotes a jogger position detecting means, reference numeral 18 denotes a leading end stopper detecting means, reference numeral 19 denotes a tab sheet, reference numeral 20 denotes a tab portion of the tab sheet, reference numeral 21 denotes printing paper, reference numeral 22 denotes a photosensitive drum, and reference numeral 23 denotes a printing surface.

Claims (3)

用紙排出装置から送られてくる用紙を用紙進行方向に送出する排紙ローラと、前記用紙を用紙積載位置に積み重ねて収容する用紙積載テーブルと、前記用紙積載テーブルの上方で且つ用紙進行方向の下流に配置され、用紙進行方向に往復摺動することにより前記用紙の進行方向位置を規制する用紙整列部材と、前記用紙整列部材の位置を検出する位置検出手段とを有する排紙装置において、前記用紙整列部材は、タブシートが混在する印刷ジョブが排出される際には、タブシートのタブ部の送り方向長さ分だけ下流方向に移動し、かつ、印刷データを印刷ジョブの最後のページから展開することを特徴とする排紙装置。A paper discharge roller for sending out the paper sent from the paper discharge device in the paper advancing direction, a paper loading table for stacking and storing the papers at the paper loading position, and a downstream above the paper loading table and in the paper advancing direction A sheet aligning member that is disposed at a position and that reciprocates and slides in the sheet advancing direction to regulate the position of the sheet in the advancing direction; and a position detecting unit that detects the position of the sheet aligning member. When a print job in which tab sheets are mixed is ejected, the alignment member moves downstream by the length of the tab portion of the tab sheet in the feed direction, and expands the print data from the last page of the print job. A paper ejection device characterized by the above-mentioned. 前記タブシートが混在しないジョブでは、前記用紙に印刷されるデータを印刷ジョブの最初のページから展開することを特徴とする請求項1記載の排紙装置。2. The sheet ejection device according to claim 1, wherein in a job in which the tab sheets are not mixed, data to be printed on the sheet is developed from a first page of the print job. 請求項1または2に記載の排紙装置を備えたことを特徴とする画像形成装置。An image forming apparatus comprising the sheet discharging device according to claim 1.
JP2003076750A 2003-03-20 2003-03-20 Paper ejection apparatus and image forming apparatus Pending JP2004286903A (en)

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