JPH0121510B2 - - Google Patents
Info
- Publication number
- JPH0121510B2 JPH0121510B2 JP55158294A JP15829480A JPH0121510B2 JP H0121510 B2 JPH0121510 B2 JP H0121510B2 JP 55158294 A JP55158294 A JP 55158294A JP 15829480 A JP15829480 A JP 15829480A JP H0121510 B2 JPH0121510 B2 JP H0121510B2
- Authority
- JP
- Japan
- Prior art keywords
- recording paper
- tension
- speed
- pressure
- fixing
- 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
Links
- 230000003534 oscillatory effect Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000037303 wrinkles Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects 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
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2092—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using pressure only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
- B65H23/10—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle acting on running web
- B65H23/14—Tensioning rollers applying braking forces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Fax Reproducing Arrangements (AREA)
- Fixing For Electrophotography (AREA)
- Paper Feeding For Electrophotography (AREA)
- Controlling Sheets Or Webs (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Description
【発明の詳細な説明】
本発明は記録の張力を規制し、しわ、ジヤム、
スキユーが発生せず、さらに初期設定時の姿勢の
悪さを矯正できる記録紙の状態を得る新規な手段
を持つ乾式静電記録方式の、圧力定着式フアクシ
ミリ装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention regulates recording tension, eliminates wrinkles, jams,
The present invention relates to a pressure fixing type facsimile apparatus using a dry electrostatic recording method that does not cause skew and has a new means for obtaining a state of recording paper that can correct the poor posture at the time of initial setting.
一般に従来の乾式静電記録方式のフアクシミリ
装置において、記録紙上に形成されたトナー像を
定着する方法として種々の方法があるが、１組の
圧着ローラー間に未定着紙を通過させることによ
り記録紙上に定着する圧力定着法がある。第１図
は従来の圧力定着式フアクシミリ装置における受
信機の走行系を示す図で、以下この図を用いて従
来装置を説明する。すなわちロールに巻かれた記
録紙１は記録紙ガイドローラー２、記録紙送りロ
ーラー３を通つた後、記録電極６および記録紙押
えのえローラー５の間を通過しながら伝送される
原稿内容に対応した静電潜像が記録される。受信
が完了した記録紙は記録紙送りローラー３でカツ
タ７まで送られた後切断される。静電潜像が記録
された記録紙は記録紙送りローラー３により記録
紙ガイド板８に沿つて送られ、現像装置９で現
像、定着装置１０で定着された後、装置外に設け
た受信原稿ストツカ１１に記録紙送りローラー３
で送られ、ストツクされる。定着するためには非
常に大きな圧力を必要とするため、記録紙がロー
ラー間を通過することによりしわ、ジヤム、スキ
ユーを発生しないような角度、姿勢で、記録紙を
圧着ローラー間に搬入する必要がある。 In general, in conventional dry electrostatic recording type facsimile machines, there are various methods for fixing the toner image formed on the recording paper. There is a pressure fixing method that fixes images. FIG. 1 is a diagram showing the running system of a receiver in a conventional pressure fixing type facsimile apparatus, and the conventional apparatus will be explained below using this diagram. That is, the recording paper 1 wound into a roll passes through the recording paper guide roller 2, the recording paper feed roller 3, and then between the recording electrode 6 and the recording paper holding roller 5, corresponding to the document content to be transmitted. An electrostatic latent image is recorded. The recording paper that has been completely received is sent to a cutter 7 by a recording paper feed roller 3 and then cut. The recording paper on which the electrostatic latent image has been recorded is sent along a recording paper guide plate 8 by a recording paper feed roller 3, developed by a developing device 9, fixed by a fixing device 10, and then transferred to a receiving original provided outside the device. Recording paper feed roller 3 to stocker 11
It is sent and stocked. Since a very large amount of pressure is required to fuse the paper, it is necessary to carry the paper between the pressure rollers at an angle and posture that will prevent wrinkles, jams, and skew from occurring when the paper passes between the rollers. There is.
上記のような従来装置では、上述の説明から明
らかなように、しわ、ジヤム、スキユーが発生し
ないように記録紙を圧着ローラーの間に搬入する
必要があるが、未定着トナーの付いた記録紙であ
るため任意に記録紙に触れることができず、し
わ、ジヤム、スキユー全てに対して良好な状態を
作るのは極めて難しく、うまく搬入できても、記
録紙が極端に偏つている場合等（例えば記録紙の
進行方向片側が真黒で、他の真白の場合）は定着
に従つてスキユーを生じる。 As is clear from the above description, in the conventional apparatus described above, it is necessary to feed the recording paper between the pressure rollers to prevent wrinkles, jams, and skew, but the recording paper with unfixed toner may Therefore, it is not possible to touch the recording paper arbitrarily, and it is extremely difficult to maintain good conditions against all wrinkles, jams, and skews. For example, if one side of the recording paper in the direction of travel is pure black and the other is pure white, skew will occur as the image is fixed.
本発明は上記のような欠点を除去するためにな
されたもので、定着前の記録紙に振動的張力を加
えるだけで、しわ、ジヤム、スキユーを発生しな
いように、また発生したしわ、ジヤム、スキユー
を消滅させることができる圧力定着式フアクシミ
リ装置を提供することを目的とする。 The present invention has been made to eliminate the above-mentioned drawbacks, and it is possible to prevent wrinkles, jams, and skew by simply applying vibratory tension to the recording paper before fixing, and to eliminate wrinkles, jams, and skew that have occurred. An object of the present invention is to provide a pressure fixing type facsimile device that can eliminate skew.
本発明の特徴とするところは、定着前の記録紙
に対して、圧着ローラーの回転速度と紙送り速度
の差により張力をかける際圧着ローラーの回転速
度を振動的にすることにより振動的張力を発生さ
せ、記録紙の走行時、常に記録紙をピンと張つて
おくと同時に、加える張力は振動的とすることが
できるようにしたものである。 A feature of the present invention is that when tension is applied to the recording paper before fixing by the difference between the rotational speed of the pressure roller and the paper feed speed, the vibrational tension is reduced by making the rotational speed of the pressure roller vibrate. The tension is generated so that the recording paper is always kept taut as it travels, and at the same time, the applied tension can be vibrated.
以下第２図、第３図、第４図を用いて本発明の
実施例を説明する。第２図は本発明による圧力定
着式フアクシミリ装置における、記録紙に張力を
加える部分、現像部、定着部の一実施例を示す見
取り図である。摩擦板１２は記録紙４に接する面
に、記録紙走行方向の中心線に対して記録紙外線
に向つて左右各々に、記録紙走行方向と若干の角
度を持つた方向に溝、山等が設けてあり、それ以
外の方向に対しては記録紙がすべりにくいものが
設けてある。ゴムベルト１３は記録紙搬入側の駆
動軸１４および記録紙搬出側の摩擦力軸１５の間
で回転運動し、各軸が図中矢印方向に回転するこ
とにより記録紙４は搬送される。ゴムベルト１３
と摩擦板１２の間隔は、駆動１４側に隙間があい
ており、記録紙４が搬入され易くなつている。ま
た摩擦力軸１５側は摩擦力バネ１６で摩擦力軸１
５とゴムベルト１３を摩擦板１２に押しつけてい
る。従つて駆動軸１４側から搬入された記録紙４
には摩擦力軸１５側から搬出するまでに、記録紙
走行に伴つて記録紙走行方向と直角方向の張力が
加わる。また圧着ローラーに記録紙４が噛み込ま
れた後は、定着装置１０の回転速度をゴムベルト
１３の速度に対して速くすると、圧力定着ガイド
ピン１７とゴムベルト１３の間で記録紙４の走行
方向に張力が生じ、この張力を生じることによ
り、ゴムベルト１３と摩擦板１２で生じた走行方
向に直角方向の張力が圧力定着ガイドピン１７の
位置まで広がる。従つて圧力定着ガイドピン１７
の位置すなわち圧着ローラーに搬入される寸前で
は記録紙走行方向および走行方向に直角方向の張
力が記録紙に生じ、記録紙４はピンと張られた状
態で圧着ローラーに次々と搬入されていく。定着
装置１０の圧着ローラ駆動モータを一定速度で回
転させた時の圧着ローラー速度、記録紙送り速
度、記録紙張力の関係を示したのが第３図であ
る。第３図ａは圧着ローラー速度、第３図ｂは記
録紙送りローラ速度、第３図ｃは記録紙送り、第
３図ｄは両ローラ速度差、第３図ｅは記録紙張力
を示し、圧着ローラー速度と記録紙送りローラー
速度の速度差により、記録紙に張力が発生する。
速度差を一定にすれば一定の張力を発生する。第
４図は本発明による振動的に張力を与えるための
圧着ローラー速度、記録紙送り速度、記録紙張力
の関係を示したものである。圧着ローラ速度は、
圧着ローラー駆動モータの回転速度を振動的にす
ることで出来、しかも圧着ローラ駆動モータの回
転速度を振動的にすることは、例えばモータへの
印加電圧を振動的にすることででき、しかも印加
電圧を振動的にすることは極めて容易であるた
め、容易にできる。圧着ローラー速度を第４図ａ
に示すように例えばv1＋v1′sin ｔの如く振動的に
し、記録紙送りローラー速度を第４図ｂに示すよ
うに一定にすると記録紙張力は第４図ｅに示すよ
うに例えば、Ｆ＋F′sin ｔの如く振動的となる。
定着ローラーにより定着するためには非常に大き
な圧着力を必要とするため、記録紙送り速度は第
４図ｃに示すように圧着ローラー速度とほとんど
等しい値となる。従つて圧着ローラー速度と記録
紙送りローラー速度の間で第４図ｄに示すような
速度差を設け、記録紙に張力を発生させると、記
録紙送りローラー速度と記録紙送り速度とに速度
差を生じ、記録紙送りローラーと記録紙の間には
摩擦力を持つてスリツプを生じる。従つて記録紙
送りローラー側で速度を振動的にし、圧着ローラ
ー側で一定速度にしても効果は少ない。さらに第
４図では圧着ローラー速度をv1＋v1′sin ｔと正弦
波状の変動で示したが、実験によれば鋸歯状、矩
形波状等、振動的であればよく、しかも比較的高
い周波数（数10Hz）においてスキユーの補正に効
果を発輝することができる。 Embodiments of the present invention will be described below with reference to FIGS. 2, 3, and 4. FIG. 2 is a sketch showing an embodiment of a part that applies tension to recording paper, a developing part, and a fixing part in a pressure fixing type facsimile apparatus according to the present invention. The friction plate 12 has grooves, ridges, etc. on the surface in contact with the recording paper 4 in directions that are at a slight angle with the recording paper running direction, on both the left and right sides toward the outer line of the recording paper with respect to the center line in the recording paper running direction. The recording paper is provided with something that prevents it from slipping in other directions. The rubber belt 13 rotates between a drive shaft 14 on the recording paper carry-in side and a friction force shaft 15 on the record paper discharge side, and the recording paper 4 is conveyed by each shaft rotating in the direction of the arrow in the figure. rubber belt 13
There is a gap between the drive 14 side and the friction plate 12, so that the recording paper 4 can be easily carried in. Further, the friction force shaft 15 side is connected to the friction force spring 16 by the friction force shaft 15.
5 and a rubber belt 13 are pressed against the friction plate 12. Therefore, the recording paper 4 carried in from the drive shaft 14 side
As the recording paper runs, a tension force in a direction perpendicular to the running direction of the recording paper is applied to the recording paper until it is unloaded from the friction force shaft 15 side. Further, after the recording paper 4 is caught in the pressure roller, if the rotation speed of the fixing device 10 is made faster than the speed of the rubber belt 13, the recording paper 4 is rotated in the running direction between the pressure fixing guide pin 17 and the rubber belt 13. Tension is generated, and as a result of this tension, the tension in the direction perpendicular to the running direction generated between the rubber belt 13 and the friction plate 12 spreads to the position of the pressure fixing guide pin 17. Therefore, the pressure fixing guide pin 17
At the position , that is, just before being carried into the pressure roller, tension is generated in the recording paper in the running direction of the recording paper and in a direction perpendicular to the running direction, and the recording paper 4 is carried one after another into the pressure roller in a taut state. FIG. 3 shows the relationship among the pressure roller speed, recording paper feed speed, and recording paper tension when the pressure roller drive motor of the fixing device 10 is rotated at a constant speed. Figure 3a shows the pressure roller speed, Figure 3b shows the recording paper feed roller speed, Figure 3c shows the recording paper feed, Figure 3d shows the speed difference between both rollers, and Figure 3e shows the recording paper tension. Tension is generated on the recording paper due to the speed difference between the pressure roller speed and the recording paper feed roller speed.
If the speed difference is constant, a constant tension will be generated. FIG. 4 shows the relationship among the pressure roller speed, recording paper feed speed, and recording paper tension for applying tension in a vibratory manner according to the present invention. The pressure roller speed is
This can be done by making the rotational speed of the pressure roller drive motor vibrate.Moreover, making the rotational speed of the pressure roller drive motor vibratory can be achieved, for example, by making the voltage applied to the motor vibratory, and the applied voltage can also be made vibratory. It is very easy to make oscillatory, so it can be done easily. The pressure roller speed is shown in Figure 4a.
If the tension of the recording paper is made to vibrate, for example, v 1 +v 1 'sin t, as shown in FIG. It becomes vibratory like 'sin t'.
Since a very large pressing force is required for fixing with the fixing roller, the recording paper feeding speed becomes almost equal to the pressing roller speed, as shown in FIG. 4c. Therefore, if a speed difference is created between the pressure roller speed and the recording paper feed roller speed as shown in FIG. This causes a frictional force between the recording paper feed roller and the recording paper, causing a slip. Therefore, even if the speed is vibrated on the recording paper feed roller side and the speed is constant on the pressure roller side, there is little effect. Furthermore, in Fig. 4, the pressure roller speed is shown as a sinusoidal variation of v 1 +v 1 'sin t, but experiments have shown that any vibration, such as a sawtooth or rectangular wave, is sufficient, and moreover, relatively high frequency ( It can be effective in correcting skew at frequencies of several tens of Hz).
以上説明したように、本発明によれば、モータ
への簡単な機能追加をし記録紙に振動的張力を加
えることにより、しわ、ジヤム、スキユーを生じ
ず、生じたスキユーも定着に従つて減少させるこ
とができ、極めて長尺の記録紙にも対応できる圧
力定着式フアクシミリ装置を実現することができ
る。 As explained above, according to the present invention, by adding a simple function to the motor and applying vibratory tension to the recording paper, wrinkles, jams, and skews do not occur, and the skews that occur are reduced as the paper is fixed. Therefore, it is possible to realize a pressure fixing facsimile device that can handle extremely long recording paper.
第１図は従来の圧力定着式フアクシミリ装置に
おける受信機の記録紙の走行系を図す図、第２図
は本発明による圧力定着式フアクシミリ装置にお
ける記録紙に張力を加える部分等の一実施例を示
す見取り図、第３図ａ〜ｅは一定速度差における
一定張力発生の関係を示す図、第４図ａ〜ｅは本
発明による圧着ローラー速度を振動的にした時生
じる振動的張力の振動状態の一例を示した図であ
る。
１０……定着装置、１２……摩擦板、１３……
ゴムベルト、１４……駆動軸、１５……摩擦力
軸、１６……摩擦力バネ、１７……圧力定着ガイ
ドピン。
FIG. 1 is a diagram showing a recording paper running system of a receiver in a conventional pressure fixing type facsimile device, and FIG. 2 is an example of the part that applies tension to the recording paper in a pressure fixing type facsimile device according to the present invention. 3A to 3E are diagrams showing the relationship between the generation of constant tension at a constant speed difference, and FIGS. 4A to 4E are diagrams showing the oscillating state of the oscillatory tension that occurs when the speed of the pressure roller according to the present invention is made oscillatory. It is a figure showing an example. 10... Fixing device, 12... Friction plate, 13...
Rubber belt, 14... Drive shaft, 15... Friction force shaft, 16... Friction force spring, 17... Pressure fixing guide pin.
Claims (1)
と、 現像装置の搬送上流側に設けられ、記録紙に一
定の張力を付与する張力付与蔭手段と、 を備え 前記圧力定着装置は対接する複数の圧着ローラ
を有し、これら圧着ローラの少なくとも１個に回
転速度が可変速な駆動モータを取付け、 前記駆動モータは、その回転速が振動的に変化
して記録紙に振動的張力に付与されるように制御
されること、 を特徴とする圧力定着式フアクシミリ装置。[Scope of Claims] 1. A conveying unit that conveys recording paper, a developing device that forms a toner image on the recording paper, a pressure fixing device that fixes the toner image on the recording paper, and a device provided on the conveying upstream side of the developing device. , a tension applying means for applying a constant tension to the recording paper, and the pressure fixing device has a plurality of pressure rollers facing each other, and at least one of the pressure rollers is provided with a drive motor having a variable rotation speed. Attachment: A pressure fixing type facsimile apparatus, characterized in that the drive motor is controlled so that its rotational speed is changed oscillatingly to apply an oscillatory tension to the recording paper.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55158294A JPS5782877A (en) | 1980-11-12 | 1980-11-12 | Pressure fixing type facsimile device |
| US06/290,563 US4419003A (en) | 1980-08-27 | 1981-08-06 | Recording sheet conveying system of pressure fixing type electrostatic printing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55158294A JPS5782877A (en) | 1980-11-12 | 1980-11-12 | Pressure fixing type facsimile device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5782877A JPS5782877A (en) | 1982-05-24 |
| JPH0121510B2 true JPH0121510B2 (en) | 1989-04-21 |
Family
ID=15668457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55158294A Granted JPS5782877A (en) | 1980-08-27 | 1980-11-12 | Pressure fixing type facsimile device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5782877A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6597270B2 (en) * | 2015-12-16 | 2019-10-30 | コニカミノルタ株式会社 | Fixing device |
-
1980
- 1980-11-12 JP JP55158294A patent/JPS5782877A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5782877A (en) | 1982-05-24 |
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