JPH0578001A - Carrier device - Google Patents

Carrier device

Info

Publication number
JPH0578001A
JPH0578001A JP3237942A JP23794291A JPH0578001A JP H0578001 A JPH0578001 A JP H0578001A JP 3237942 A JP3237942 A JP 3237942A JP 23794291 A JP23794291 A JP 23794291A JP H0578001 A JPH0578001 A JP H0578001A
Authority
JP
Japan
Prior art keywords
paper
belt
guide
conveyor belt
sides
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
JP3237942A
Other languages
Japanese (ja)
Inventor
Yasuhisa Kato
泰久 加藤
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 Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP3237942A priority Critical patent/JPH0578001A/en
Publication of JPH0578001A publication Critical patent/JPH0578001A/en
Pending legal-status Critical Current

Links

Landscapes

  • Paper Feeding For Electrophotography (AREA)
  • Belt Conveyors (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Fixing For Electrophotography (AREA)

Abstract

PURPOSE:To prevent crinkling from occurring in a sheet where a picture image has been fixed. CONSTITUTION:A carrier belt 23 provided with plural sticking holes in small diameter at the central part in the width direction of a carrier passage in a prescribed passing sheet size, and plural guide projections 25 which run from the central part to the side of a passing sheet, size toward the downstream side from the upstream side of the carrier passage are formed at a guide plate 24 which is disposed at both the sides of the carrier belt 23 lateral-symmetrically to the carrier belt 23. The crinkling of the paper is smoothed out to the side from the central part by the guide projections during carrying the sheet from a transferring part to a fixing part along the guide plate 23 with a carrier belt rotation while the sheet, is being stuck from the sticking holes and sent to the fixing part without crinkling, or a sheet is smoothed out without crinkling with a guide inclined surface or a guide belt provided at the guide plate 24 to be sent to the fixing part without crinkling.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、PPC、ファクシミ
リ、プリンタ等において利用される搬送ベルトを有する
搬送装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrying device having a carrying belt used in PPCs, facsimiles, printers and the like.

【0002】[0002]

【従来の技術】従来、PPC等に用いられる搬送装置
は、転写部にて未定着トナー像が転写された紙(シー
ト)を定着部へ搬送する働きがあり、一般的には、1
本、若しくは、複数本の搬送ベルトに形成された複数の
小径の吸引孔から吸引ファンにより紙を吸引しながら、
搬送ベルトを紙搬送速度と同速で回転させ、これによ
り、紙を安定した状態で転写部から定着部へ搬送するも
のである。
2. Description of the Related Art Conventionally, a conveying device used for PPC or the like has a function of conveying a sheet (sheet) on which an unfixed toner image is transferred at a transfer section to a fixing section.
Book, or while sucking paper with a suction fan from a plurality of small-diameter suction holes formed in a plurality of conveyor belts,
The transport belt is rotated at the same speed as the paper transport speed, whereby the paper is stably transported from the transfer unit to the fixing unit.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、最近で
は、コストダウンを図るため搬送ベルトと吸引ベルトと
を取り除いて(搬送装置をなくして)ガイド板のみを装
着したPPC等の装置が多くなってきた。このような装
置では、紙が安定した状態で転写部から定着部へ搬送さ
れ難く、転写処理等により全体に波打ち状態となった紙
が定着部に進入すると、トナー定着後の紙にシワが発生
してしまう。また、最近では、再製紙(リサイクルペー
パー)が市販されるようになってきており、この再製紙
は高温高湿の環境下では普通紙や上質紙に比べて紙全体
に波打ち状態が一層発生し易いため、トナー定着後の再
製紙にシワが頻繁に発生してしまう。
However, recently, in order to reduce the cost, the number of devices such as PPCs, in which the conveyor belt and the suction belt are removed (without the conveyor) and only the guide plate is mounted, has been increasing. .. In such a device, it is difficult to convey the paper from the transfer unit to the fixing unit in a stable state, and when the paper that is in a wavy state due to the transfer processing or the like enters the fixing unit, wrinkles occur on the paper after toner fixing. Resulting in. In addition, recently, recycled paper has become commercially available, and this recycled paper causes more corrugated state on the entire paper under high temperature and high humidity environment than plain paper and high-quality paper. Since it is easy, wrinkles frequently occur in re-papermaking after toner fixing.

【0004】このようなトナー定着後の紙に発生するシ
ワにおいて、上質紙に発生するシワについては定着部で
シワに対する余裕度をあげることにより改善できる可能
性があるが、質の悪い再製紙に発生するシワについても
定着部のみにおいて対処することは極めて困難である。
Regarding such wrinkles that occur on the paper after toner fixing, wrinkles that occur on high-quality paper may be improved by increasing the margin for wrinkles at the fixing section, but it may result in poor quality re-papermaking. It is extremely difficult to deal with wrinkles that occur only in the fixing unit.

【0005】[0005]

【課題を解決するための手段】請求項1記載の発明で
は、所定の通紙サイズ幅に設定された搬送経路の幅方向
の中央部に複数の小径の吸引孔を有する搬送ベルトを配
設し、この搬送ベルトの両サイドにガイド板を配設し、
前記搬送ベルトの前記吸引孔から吸引ファンにより紙を
吸引し前記搬送ベルトの回転により前記紙を前記ガイド
板に沿って転写部から定着部へ搬送する搬送装置におい
て、搬送経路の上流側から下流側に向かうにしたがって
通紙サイズの中央部からサイド側へ向かう複数のガイド
突起を、両サイドの前記ガイド板に前記搬送ベルトに対
して左右対称となるように形成した。
According to a first aspect of the present invention, a conveyor belt having a plurality of small-diameter suction holes is arranged at the center in the width direction of a conveying path set to have a predetermined sheet size width. , With guide plates on both sides of this conveyor belt,
In a transport device that sucks paper from the suction hole of the transport belt by a suction fan and transports the paper from the transfer unit to the fixing unit along the guide plate by rotation of the transport belt, from a upstream side to a downstream side of a transport path. A plurality of guide protrusions extending from the central portion of the sheet-passing size toward the side are formed on the guide plates on both sides so as to be bilaterally symmetrical with respect to the conveyor belt.

【0006】請求項2記載の発明では、所定の通紙サイ
ズ幅に設定された搬送経路の幅方向の中央部に複数の小
径の吸引孔を有する搬送ベルトを配設し、この搬送ベル
トの両サイドにガイド板を配設し、前記搬送ベルトの前
記吸引孔から吸引ファンにより紙を吸引し前記搬送ベル
トの回転により前記紙を前記ガイド板に沿って転写部か
ら定着部へ搬送する搬送装置において、両サイドの前記
ガイド板にその両サイドを低くした下向きのガイド傾斜
面を前記搬送ベルトに対して左右対称に設け、前記ガイ
ド傾斜面の傾斜面積を、搬送経路の上流側から下流側に
向かうにしたがって通紙サイズの中央部からサイド側へ
向けて狭くなるように形成した。
According to the second aspect of the invention, a conveyor belt having a plurality of small-diameter suction holes is arranged in the widthwise central portion of the conveyor path set to have a predetermined paper passing size width. A conveyance device in which a guide plate is disposed on a side, paper is sucked from the suction hole of the conveyance belt by a suction fan, and the paper is conveyed from the transfer unit to the fixing unit along the guide plate by rotation of the conveyance belt. , The guide plates on both sides are provided with downwardly inclined guide slopes on both sides symmetrically with respect to the conveyor belt, and the slope area of the guide slopes extends from the upstream side to the downstream side of the conveyance path. According to the above, it was formed so as to become narrower toward the side from the central portion of the paper size.

【0007】請求項3記載の発明では、所定の通紙サイ
ズ幅に設定された搬送経路の幅方向の中央部に複数の小
径の吸引孔を有する搬送ベルトを配設し、この搬送ベル
トの両サイドにガイド板を配設し、前記搬送ベルトの前
記吸引孔から吸引ファンにより紙を吸引し前記搬送ベル
トの回転により前記紙を前記ガイド板に沿って転写部か
ら定着部へ搬送する搬送装置において、搬送経路の上流
側から下流側に向かうにしたがって通紙サイズの中央部
からサイド側へ向かうと共に前記搬送ベルトの搬送力よ
り弱い搬送力に設定されたガイドベルトを、両サイドの
前記ガイド板に前記搬送ベルトに対して左右対称となる
ように設けた。
According to the third aspect of the present invention, a conveyor belt having a plurality of suction holes of small diameters is arranged at the center in the width direction of the conveyor path set to a predetermined paper passing size width. A conveyance device in which a guide plate is disposed on a side, paper is sucked from the suction hole of the conveyance belt by a suction fan, and the paper is conveyed from the transfer unit to the fixing unit along the guide plate by rotation of the conveyance belt. , A guide belt, which is set to have a weaker carrying force than the carrying force of the carrying belt and goes to the side from the central portion of the sheet passing size from the upstream side to the downstream side of the carrying path, on the guide plates on both sides. It was provided so as to be symmetrical with respect to the conveyor belt.

【0008】[0008]

【作用】請求項1記載の発明においては、紙を転写部か
ら定着部へ搬送する途中に、紙が搬送経路の上流側から
下流側へ移動するにしたがって紙の波打ちをガイド板上
の複数のガイド突起にて紙の中央部から両サイド側へ徐
々に伸ばすことにより、紙を波打ちのない良好な状態で
定着部へ送ることが可能となる。
According to the first aspect of the present invention, while the paper is being conveyed from the transfer section to the fixing section, the corrugation of the paper is made on the guide plate as the paper moves from the upstream side to the downstream side of the conveyance path. By gradually extending from the center of the paper to both sides by the guide protrusions, it becomes possible to feed the paper to the fixing unit in a good state without waviness.

【0009】請求項2記載の発明においては、紙を転写
部から定着部へ搬送する途中に、紙が搬送経路の上流側
から下流側に移動するにしたがって紙の波打ちをガイド
板の平らな上面とガイド傾斜面との境界縁部にて紙の中
央部から両サイド側へ徐々に伸ばすことにより、紙を波
打ちのない良好な状態で定着部へ送ることが可能とな
る。
According to the second aspect of the present invention, while the paper is being conveyed from the transfer portion to the fixing portion, the corrugation of the paper is caused by the movement of the paper from the upstream side to the downstream side of the conveyance path so that the flat upper surface of the guide plate is provided. By gradually extending from the central portion of the paper to both side sides at the boundary edge between the guide and the inclined surface of the guide, the paper can be sent to the fixing unit in a good state without waviness.

【0010】請求項3記載の発明においては、紙を転写
部から定着部へ搬送する途中に、紙が搬送経路の上流側
から下流側に移動するにしたがって紙の波打ちをガイド
板のガイドベルトにて紙の中央部から両サイド側へ徐々
に伸ばすことにより、紙を波打ちのない良好な状態で定
着部へ送ることが可能となる。
According to the third aspect of the invention, during the transportation of the paper from the transfer portion to the fixing portion, the corrugation of the paper is applied to the guide belt of the guide plate as the paper moves from the upstream side to the downstream side of the transport path. By gradually extending the paper from the center to both sides, it is possible to feed the paper to the fixing unit in a good state without waviness.

【0011】[0011]

【実施例】請求項1記載の発明の一実施例を図1ないし
図4に基づいて説明する。まず、本装置が利用される複
写機(PPC)本体の全体構成の概略を図2に基づいて
述べる。複写機本体1は、読取光学系2と、書込光学系
3と、書込系4とによりなっている。すなわち、前記読
取光学系2においては、蛍光灯5で照明した原稿からの
反射画像を3つのミラー6、レンズ7を介してCCD等
の読取センサ8により検出し、その検出信号を図示しな
い制御部にて制御するように配設されている。また、前
記書込光学系3においては、前記制御部の制御により前
記読取センサ8の検出信号をレーザビームとしてポリゴ
ンミラー9に照射し、その反射ビームをレンズ群10、
ミラー11を介して前記書込系4の感光体ドラム12の
表面に結像するように配設されている。さらに、前記書
込系4においては、レーザビームの結像される前記感光
体ドラム12の周囲に、帯電部13、現像部14、転写
部15、クリーニング部16等が順次配設され、前記感
光体ドラム12の下方には、給紙カセット17から給紙
された紙18をレジストローラ19、前記転写部15、
定着部20を経て排紙側へ導く搬送経路21が形成され
ており、この搬送経路21の前記転写部15と前記定着
部20との間には、搬送装置22が配設されている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. First, an outline of the overall configuration of the main body of a copying machine (PPC) in which this apparatus is used will be described with reference to FIG. The copying machine main body 1 includes a reading optical system 2, a writing optical system 3, and a writing system 4. That is, in the reading optical system 2, a reflection image from a document illuminated by the fluorescent lamp 5 is detected by a reading sensor 8 such as a CCD via three mirrors 6 and a lens 7, and the detection signal is detected by a control unit (not shown). It is arranged to be controlled by. Further, in the writing optical system 3, the detection signal of the reading sensor 8 is irradiated as a laser beam onto the polygon mirror 9 under the control of the control unit, and the reflected beam is reflected by the lens group 10.
It is arranged so as to form an image on the surface of the photosensitive drum 12 of the writing system 4 via the mirror 11. Further, in the writing system 4, a charging unit 13, a developing unit 14, a transfer unit 15, a cleaning unit 16 and the like are sequentially arranged around the photosensitive drum 12 on which a laser beam is imaged, and the photosensitive unit 12 is exposed. Below the body drum 12, the paper 18 fed from the paper feed cassette 17 is provided with the registration roller 19, the transfer section 15,
A conveyance path 21 that leads to the paper discharge side through the fixing section 20 is formed, and a conveyance device 22 is arranged between the transfer section 15 and the fixing section 20 of the conveyance path 21.

【0012】次に、本実施例の主要部に係る搬送装置2
2の構成を図1に基づいて述べる。所定の通紙サイズ幅
に設定された前記搬送経路21の幅方向の中央部に、複
数の小径の図示しない吸引孔を有する搬送ベルト23が
配設されている。この搬送ベルト23の両サイドには、
ガイド板24が配設されている。これらのガイド板24
には、搬送経路21の上流側から下流側に向かうにした
がって通紙サイズの中央部からサイド側へ向かう複数の
ガイド突起25が前記搬送ベルト23に対して左右対称
に形成されている。
Next, the transfer device 2 according to the main part of this embodiment.
2 will be described with reference to FIG. A conveyance belt 23 having a plurality of small-diameter suction holes (not shown) is arranged in the widthwise central portion of the conveyance path 21 set to have a predetermined sheet size width. On both sides of this conveyor belt 23,
A guide plate 24 is provided. These guide plates 24
A plurality of guide protrusions 25 are formed symmetrically with respect to the conveyor belt 23 from the central portion of the sheet passing size toward the side of the conveyor path 21 from the upstream side to the downstream side.

【0013】このような構成において、まず、搬送経路
路21内の紙18の流れを図2に基づいて述べる。給紙
カセット17から給紙された紙18は、レジストローラ
19によりタイミングがとられ、転写部15にて感光体
ドラム12の表面のトナー像が転写される。その後、紙
18は、搬送装置22の搬送ベルト23の吸引孔から図
示しない吸引ファンにて吸引されながら安定した状態で
搬送ベルト23の回転によりガイド板24に沿って定着
部20へ搬送される。そして、定着部20にて熱定着さ
れた紙18は、さらに搬送経路21を通って排紙され
る。
In such a structure, first, the flow of the paper 18 in the transport path 21 will be described with reference to FIG. The paper 18 fed from the paper feed cassette 17 is timed by the registration roller 19 and the toner image on the surface of the photosensitive drum 12 is transferred by the transfer unit 15. After that, the paper 18 is conveyed to the fixing unit 20 along the guide plate 24 by the rotation of the conveyance belt 23 while being stably sucked by the suction fan (not shown) from the suction hole of the conveyance belt 23 of the conveyance device 22. Then, the paper 18 thermally fixed by the fixing unit 20 is further discharged through the transport path 21.

【0014】次に、本実施例の主要部に係る搬送装置2
2の動作を図3及び図4に基づいて述べる。転写部15
から搬送装置22に進入した直後の紙18は、図3に示
すように、全体に波打った状態にある。その後、紙18
が転写部15側から定着部20側へ移動されるにしたが
って、ガイド突起25により徐々に紙18の波打ちがそ
の中央部から両サイド側へ伸ばされる。その結果、紙1
8が定着部20に進入する時には、図4に示すように、
波打ちがほぼなくなり、紙18を良好な状態で定着部2
0に送ることが可能となる。これにより、普通紙や上質
紙だけでなく質の悪い再製紙を使用したとしてもトナー
定着後の紙18に発生するシワを防止することが可能と
なる。
Next, the transfer device 2 according to the main part of this embodiment.
The operation of No. 2 will be described with reference to FIGS. 3 and 4. Transfer unit 15
Immediately after entering the transport device 22 from the paper 18, the paper 18 is in a wavy state as a whole, as shown in FIG. Then paper 18
As the sheet is moved from the transfer portion 15 side to the fixing portion 20 side, the corrugation of the paper 18 is gradually extended from the central portion to both sides by the guide protrusion 25. As a result, paper 1
When 8 enters the fixing unit 20, as shown in FIG.
Rippling is almost eliminated, and the paper 18 is in a good state in the fixing unit 2
It is possible to send it to 0. This makes it possible to prevent wrinkles from occurring on the paper 18 after the toner is fixed, even if not only plain paper or high-quality paper but also poor quality re-papermaking is used.

【0015】次に、請求項2記載の発明の一実施例を図
5ないし図7に基づいて説明する。なお、請求項1記載
の発明の一実施例(図1ないし図4参照)において説明
した部分と同一部分については同一符号を用い、その説
明も省略する(以下の実施例についても同様とする)。
図5に示すように、搬送ベルト23の両サイドのガイド
板24に、搬送ベルト23に対して左右対称に両サイド
を低くした下向きのガイド傾斜面26が形成されてい
る。このガイド傾斜面26の傾斜面積は、搬送経路21
の上流側から下流側に向かうにしたがって通紙サイズの
中央部からサイド側へ向けて狭くなるように形成されて
いる。従って、図6及び図7に示すように、前記搬送ベ
ルト23とその両サイドの前記ガイド板24との断面は
台形状となり、この台形状の断面の斜辺が前記転写部1
5側では長く、前記定着部20側へ向かうにしたがって
短くなるようになっている。
Next, an embodiment of the invention described in claim 2 will be described with reference to FIGS. The same parts as those described in one embodiment of the invention described in claim 1 (see FIGS. 1 to 4) are designated by the same reference numerals, and the description thereof will be omitted (the same applies to the following embodiments). ..
As shown in FIG. 5, the guide plates 24 on both sides of the conveyor belt 23 are formed with downwardly inclined guide inclined surfaces 26 whose sides are lowered symmetrically with respect to the conveyor belt 23. The inclined area of the guide inclined surface 26 is equal to the conveyance path 21.
It is formed so that it becomes narrower from the central portion of the sheet passing size toward the side side from the upstream side to the downstream side. Therefore, as shown in FIGS. 6 and 7, the cross section of the conveyor belt 23 and the guide plates 24 on both sides thereof has a trapezoidal shape, and the hypotenuse of this trapezoidal cross section is the transfer unit 1.
5 side is long, and becomes shorter as it goes to the fixing section 20 side.

【0016】このような構成において、転写部15から
搬送装置22に進入した直後の紙18は、図6に示すよ
うに、波打った状態にあり、紙18が搬送ベルト23の
回転により転写部15側から定着部20側に移動される
にしたがって、ガイド板24の平らな上面とガイド傾斜
面26との境界縁部により紙18の波打ちがその中央部
から両サイド側へ伸ばされる。その結果、紙18が定着
部20に進入する時には、図7に示すように、波打ちが
ほぼなくなり、紙18を良好な状態で定着部20へ送る
ことが可能となる。これにより、普通紙や上質紙だけで
なく質の悪い再製紙を使用したとしてもトナー定着後の
紙18に発生するシワを防止することが可能となる。
In such a structure, the paper 18 immediately after entering the transfer device 22 from the transfer section 15 is in a wavy state as shown in FIG. 6, and the paper 18 is transferred by the rotation of the transfer belt 23. As it is moved from the 15 side to the fixing section 20 side, the corrugation of the paper 18 is extended from the central portion to both side sides by the boundary edge portion between the flat upper surface of the guide plate 24 and the guide inclined surface 26. As a result, when the paper 18 enters the fixing unit 20, as shown in FIG. 7, the waviness is almost eliminated, and the paper 18 can be sent to the fixing unit 20 in a good state. This makes it possible to prevent wrinkles from occurring on the paper 18 after the toner is fixed, even if not only plain paper or high-quality paper but also poor quality re-papermaking is used.

【0017】次に、請求項3記載の発明の一実施例を図
8に基づいて説明する。搬送ベルト23の両サイドのガ
イド板24に、搬送経路21の上流側から下流側に向か
うにしたがって通紙サイズの中央部からサイド側へ向か
うガイドベルト27が前記搬送ベルト23に対して左右
対称に配設されている。前記ガイドベルト27は、複数
の小径の図示しない吸引孔が形成されており、その搬送
力は前記搬送ベルト23の搬送力より弱く設定されてい
る。但し、前記ガイドベルト27の吸引力を前記搬送ベ
ルト23の吸引力より弱く設定してもよい。
Next, an embodiment of the invention described in claim 3 will be described with reference to FIG. On the guide plates 24 on both sides of the conveyor belt 23, guide belts 27 are arranged symmetrically with respect to the conveyor belt 23, the guide belts 27 extending from the central portion of the sheet-passing size toward the side as the conveyor belt 21 moves from the upstream side to the downstream side. It is arranged. The guide belt 27 has a plurality of small-diameter suction holes (not shown) formed therein, and its conveying force is set to be weaker than the conveying force of the conveying belt 23. However, the suction force of the guide belt 27 may be set weaker than the suction force of the transport belt 23.

【0018】このような構成において、転写部15から
搬送装置22に進入した直後の紙18は波打った状態に
あり、この紙18が転写部15側から定着部20側へ移
動されるにしたがって、ガイド板24のガイドベルト2
7により紙18の波打ちがその中央部から両サイド側へ
伸ばされる。その結果、紙18が定着部20に進入する
時には、波打ちがほぼなくなり、紙18を良好な状態で
定着部20へ送ることが可能となる。これにより、普通
紙や上質紙だけでなく質の悪い再製紙を使用したとして
もトナー定着後の紙18に発生するシワを防止すること
が可能となる。
In such a structure, the paper 18 immediately after entering the transport device 22 from the transfer section 15 is in a wavy state, and as the paper 18 is moved from the transfer section 15 side to the fixing section 20 side. , The guide belt 2 of the guide plate 24
7 causes the corrugation of the paper 18 to be extended from its central portion to both sides. As a result, when the paper 18 enters the fixing unit 20, the waviness is almost eliminated, and the paper 18 can be sent to the fixing unit 20 in a good state. This makes it possible to prevent wrinkles from occurring on the paper 18 after the toner is fixed, even if not only plain paper or high-quality paper but also poor quality re-papermaking is used.

【0019】[0019]

【発明の効果】請求項1記載の発明は、所定の通紙サイ
ズ幅に設定された搬送経路の幅方向の中央部に複数の小
径の吸引孔を有する搬送ベルトを配設し、この搬送ベル
トの両サイドにガイド板を配設し、前記搬送ベルトの前
記吸引孔から吸引ファンにより紙を吸引し前記搬送ベル
トの回転により前記紙を前記ガイド板に沿って転写部か
ら定着部へ搬送する搬送装置において、搬送経路の上流
側から下流側に向かうにしたがって通紙サイズの中央部
からサイド側へ向かう複数のガイド突起を、両サイドの
前記ガイド板に前記搬送ベルトに対して左右対称となる
ように形成したので、紙を転写部から定着部へ搬送する
途中に、紙が搬送経路の上流側から下流側へ移動するに
したがって紙の波打ちをガイド板上の複数のガイド突起
にて紙の中央部から両サイド側へ徐々に伸ばすことによ
り、紙を波打ちのない良好な状態で定着部へ送ることが
可能となり、これにより、普通紙や上質紙だけでなく質
の悪い再製紙を使用したとしてもトナー定着後の紙に発
生するシワを防止することができるものである。
According to the first aspect of the present invention, a conveyor belt having a plurality of small-diameter suction holes is arranged at the center in the width direction of the conveyor path set to have a predetermined sheet passing size width. A guide plate is provided on both sides of the conveyance belt, and the conveyance fan conveys the paper along the guide plate from the transfer section to the fixing section by sucking the paper from the suction hole of the conveyance belt with a suction fan. In the apparatus, a plurality of guide protrusions extending from the central portion of the sheet passing size to the side side from the upstream side to the downstream side of the transport path are symmetrically arranged on the guide plates on both sides with respect to the transport belt. Since it is formed on the paper, while the paper is being conveyed from the transfer section to the fixing section, the corrugation of the paper is caused by the plurality of guide protrusions on the guide plate as the paper moves from the upstream side to the downstream side of the conveyance path. Part By gradually extending the paper to both sides, it is possible to feed the paper to the fixing section in a good condition without waviness, and this makes it possible to use not only plain paper or high-quality paper but also poor-quality remanufactured toner as toner. Wrinkles that occur on the paper after fixing can be prevented.

【0020】請求項2記載の発明は、所定の通紙サイズ
幅に設定された搬送経路の幅方向の中央部に複数の小径
の吸引孔を有する搬送ベルトを配設し、この搬送ベルト
の両サイドにガイド板を配設し、前記搬送ベルトの前記
吸引孔から吸引ファンにより紙を吸引し前記搬送ベルト
の回転により前記紙を前記ガイド板に沿って転写部から
定着部へ搬送する搬送装置において、両サイドの前記ガ
イド板にその両サイドを低くした下向きのガイド傾斜面
を前記搬送ベルトに対して左右対称に設け、このガイド
傾斜面を、搬送経路の上流側から下流側に向かうにした
がって通紙サイズの中央部からサイド側へ向けて狭くな
るように形成したので、紙を転写部から定着部へ搬送す
る途中に、紙が搬送経路の上流側から下流側に移動する
にしたがって紙の波打ちをガイド板の平らな上面とガイ
ド傾斜面との境界縁部にて紙の中央部から両サイド側へ
徐々に伸ばすことにより、紙を波打ちのない良好な状態
で定着部へ送ることが可能となり、これにより、普通紙
や上質紙だけでなく質の悪い再製紙を使用したとしても
トナー定着後の紙に発生するシワを防止することができ
るものである。
According to a second aspect of the present invention, a conveyor belt having a plurality of small-diameter suction holes is arranged at the center in the width direction of the conveyor path set to have a predetermined sheet passing size width. A conveyance device in which a guide plate is disposed on a side, paper is sucked from the suction hole of the conveyance belt by a suction fan, and the paper is conveyed from the transfer unit to the fixing unit along the guide plate by rotation of the conveyance belt. , The guide plates on both sides are provided with downwardly inclined guide inclined surfaces, which are lowered on both sides, symmetrically with respect to the conveyor belt, and the guide inclined surfaces are passed from the upstream side to the downstream side of the conveyance path. Since it is formed so that it narrows from the central part of the paper size toward the side, the paper will move as it moves from the upstream side to the downstream side of the transfer path during the transfer from the transfer part to the fixing part. By gradually extending the striking from the center of the paper to both sides at the boundary edge between the flat upper surface of the guide plate and the inclined guide surface, the paper can be sent to the fixing section in a good condition without waviness. As a result, even if not only plain paper or high-quality paper but also poor quality recycled paper is used, it is possible to prevent wrinkles from occurring on the paper after toner fixing.

【0021】請求項3記載の発明は、所定の通紙サイズ
幅に設定された搬送経路の幅方向の中央部に複数の小径
の吸引孔を有する搬送ベルトを配設し、この搬送ベルト
の両サイドにガイド板を配設し、前記搬送ベルトの前記
吸引孔から吸引ファンにより紙を吸引し前記搬送ベルト
の回転により前記紙を前記ガイド板に沿って転写部から
定着部へ搬送する搬送装置において、搬送経路の上流側
から下流側に向かうにしたがって通紙サイズの中央部か
らサイド側へ向かうと共に前記搬送ベルトの搬送力より
弱いガイドベルトを、両サイドの前記ガイド板に前記搬
送ベルトに対して左右対称となるように設けたので、紙
を転写部から定着部へ搬送する途中に、紙が搬送経路の
上流側から下流側に移動するにしたがって紙の波打ちを
ガイド板のガイドベルトにて紙の中央部から両サイド側
へ徐々に伸ばすことにより、紙を波打ちのない良好な状
態で定着部へ送ることが可能となり、これにより、普通
紙や上質紙だけでなく質の悪い再製紙を使用してもトナ
ー定着後の紙に発生するシワを防止することができるも
のである。
According to the third aspect of the present invention, a conveyor belt having a plurality of suction holes of small diameters is arranged in the widthwise central portion of the conveyor path set to have a predetermined sheet passing size width. A conveyance device in which a guide plate is disposed on a side, paper is sucked from the suction hole of the conveyance belt by a suction fan, and the paper is conveyed from the transfer unit to the fixing unit along the guide plate by rotation of the conveyance belt. , A guide belt weaker than the conveying force of the conveying belt from the central portion of the sheet passing size toward the side from the upstream side to the downstream side of the conveying path, the guide plates on both sides with respect to the conveying belt. Since it is provided symmetrically, the corrugation of the paper is guided by the guide plate as the paper moves from the upstream side to the downstream side of the conveyance path during the conveyance of the paper from the transfer section to the fixing section. It is possible to feed the paper to the fixing section in a good condition without waviness by gradually extending it from the center of the paper to both sides by using the ltlt, which allows not only plain paper and high-quality paper but also poor quality paper. Even if re-papermaking is used, it is possible to prevent wrinkles from occurring on the paper after toner fixing.

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

【図1】請求項1記載の発明の一実施例を示す平面図で
ある。
FIG. 1 is a plan view showing an embodiment of the invention described in claim 1. FIG.

【図2】複写機の全体構成の概略を示す縦断正面図であ
る。
FIG. 2 is a vertical sectional front view showing the outline of the overall configuration of the copying machine.

【図3】紙が搬送装置に進入した直後の状態を示す側面
図である。
FIG. 3 is a side view showing a state immediately after the paper enters the transport device.

【図4】搬送装置上の紙が定着部へ進入する直前の状態
を示す側面図である。
FIG. 4 is a side view showing a state immediately before the paper on the conveying device enters the fixing unit.

【図5】請求項2記載の発明の一実施例を示す斜視図で
ある。
5 is a perspective view showing an embodiment of the invention described in claim 2. FIG.

【図6】紙が搬送装置に進入した直後の状態を示す側面
図である。
FIG. 6 is a side view showing a state immediately after the paper has entered the transport device.

【図7】搬送装置上の紙が定着部へ進入する直前の状態
を示す側面図である。
FIG. 7 is a side view showing a state immediately before the paper on the conveying device enters the fixing unit.

【図8】請求項3記載の発明の一実施例を示す平面図で
ある。
FIG. 8 is a plan view showing an embodiment of the invention according to claim 3;

【符号の説明】 23 搬送ベルト 24 ガイド板 25 ガイド突起 26 ガイド傾斜面 27 ガイドベルト[Explanation of Codes] 23 Conveyor Belt 24 Guide Plate 25 Guide Protrusion 26 Guide Slope 27 Guide Belt

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 FI 技術表示箇所 G03G 15/20 102 6830−2H // B65G 15/58 B 7030−3F ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location G03G 15/20 102 6830-2H // B65G 15/58 B 7030-3F

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 所定の通紙サイズ幅に設定された搬送経
路の幅方向の中央部に複数の小径の吸引孔を有する搬送
ベルトを配設し、この搬送ベルトの両サイドにガイド板
を配設し、前記搬送ベルトの前記吸引孔から吸引ファン
により紙を吸引し前記搬送ベルトの回転により前記紙を
前記ガイド板に沿って転写部から定着部へ搬送する搬送
装置において、搬送経路の上流側から下流側に向かうに
したがって通紙サイズの中央部からサイド側へ向かう複
数のガイド突起を、両サイドの前記ガイド板に前記搬送
ベルトに対して左右対称となるように形成したことを特
徴とする搬送装置。
1. A conveyor belt having a plurality of suction holes each having a small diameter is arranged at a central portion in a width direction of a conveyor path set to have a predetermined sheet size width, and guide plates are arranged on both sides of the conveyor belt. In a transport device that transports the paper from the transfer unit to the fixing unit along the guide plate by sucking the paper with a suction fan from the suction hole of the transport belt and rotating the transport belt, the upstream side of the transport path. A plurality of guide protrusions extending from the central portion of the sheet-passing size toward the side from the downstream side toward the downstream side are formed symmetrically with respect to the conveyor belt on the guide plates on both sides. Transport device.
【請求項2】 所定の通紙サイズ幅に設定された搬送経
路の幅方向の中央部に複数の小径の吸引孔を有する搬送
ベルトを配設し、この搬送ベルトの両サイドにガイド板
を配設し、前記搬送ベルトの前記吸引孔から吸引ファン
により紙を吸引し前記搬送ベルトの回転により前記紙を
前記ガイド板に沿って転写部から定着部へ搬送する搬送
装置において、両サイドの前記ガイド板にその両サイド
を低くした下向きのガイド傾斜面を前記搬送ベルトに対
して左右対称に設け、前記ガイド傾斜面の傾斜面積を、
搬送経路の上流側から下流側に向かうにしたがって通紙
サイズの中央部からサイド側へ向けて狭くなるように形
成したことを特徴とする搬送装置。
2. A conveyor belt having a plurality of suction holes each having a small diameter is arranged at a central portion in a width direction of a conveyor path set to have a predetermined sheet passing size width, and guide plates are arranged on both sides of the conveyor belt. In the transport device that sucks paper from the suction hole of the transport belt with a suction fan and transports the paper from the transfer unit to the fixing unit along the guide plate by the rotation of the transport belt, the guides on both sides are provided. The plate is provided with downwardly inclined guide inclined surfaces whose both sides are lowered symmetrically with respect to the conveyor belt, and the inclined area of the guide inclined surface is
A transporting device, wherein the transporting device is formed so as to become narrower from a central portion of a sheet passing size toward a side side from an upstream side to a downstream side of a transporting path.
【請求項3】 所定の通紙サイズ幅に設定された搬送経
路の幅方向の中央部に複数の小径の吸引孔を有する搬送
ベルトを配設し、この搬送ベルトの両サイドにガイド板
を配設し、前記搬送ベルトの前記吸引孔から吸引ファン
により紙を吸引し前記搬送ベルトの回転により前記紙を
前記ガイド板に沿って転写部から定着部へ搬送する搬送
装置において、搬送経路の上流側から下流側に向かうに
したがって通紙サイズの中央部からサイド側へ向かうと
共に前記搬送ベルトの搬送力より弱い搬送力に設定され
たガイドベルトを、両サイドの前記ガイド板に前記搬送
ベルトに対して左右対称となるように設けたことを特徴
とする搬送装置。
3. A conveyor belt having a plurality of suction holes each having a small diameter is arranged at a central portion in a width direction of a conveyor path set to have a predetermined sheet passing size width, and guide plates are arranged on both sides of the conveyor belt. In a transport device that transports the paper from the transfer unit to the fixing unit along the guide plate by sucking the paper with a suction fan from the suction hole of the transport belt and rotating the transport belt, the upstream side of the transport path. From the central portion of the sheet-passing size toward the side as it goes from the downstream side to the downstream side, a guide belt set to a weaker conveyance force than the conveyance force of the conveyor belt is provided on the guide plates on both sides with respect to the conveyor belt. A conveyance device provided so as to be symmetrical.
JP3237942A 1991-09-18 1991-09-18 Carrier device Pending JPH0578001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3237942A JPH0578001A (en) 1991-09-18 1991-09-18 Carrier device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3237942A JPH0578001A (en) 1991-09-18 1991-09-18 Carrier device

Publications (1)

Publication Number Publication Date
JPH0578001A true JPH0578001A (en) 1993-03-30

Family

ID=17022749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3237942A Pending JPH0578001A (en) 1991-09-18 1991-09-18 Carrier device

Country Status (1)

Country Link
JP (1) JPH0578001A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6169874B1 (en) 1998-01-08 2001-01-02 Xerox Corporation Anti-wrinkle fuser baffle
JP2010201683A (en) * 2009-03-02 2010-09-16 Seiko Epson Corp Suction platen mechanism and liquid droplet delivery device
CN105016013A (en) * 2015-07-21 2015-11-04 深圳怡化电脑股份有限公司 Anti-wear belt clip and cash slot
EP2877345A4 (en) * 2012-07-26 2016-08-10 Hewlett Packard Development Co Platen with diagonal substrate support surfaces
EP3020559B1 (en) * 2014-11-13 2018-02-28 OCE-Technologies B.V. Transport mechanism and method for transporting a print medium in a printing system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6169874B1 (en) 1998-01-08 2001-01-02 Xerox Corporation Anti-wrinkle fuser baffle
JP2010201683A (en) * 2009-03-02 2010-09-16 Seiko Epson Corp Suction platen mechanism and liquid droplet delivery device
EP2877345A4 (en) * 2012-07-26 2016-08-10 Hewlett Packard Development Co Platen with diagonal substrate support surfaces
EP3020559B1 (en) * 2014-11-13 2018-02-28 OCE-Technologies B.V. Transport mechanism and method for transporting a print medium in a printing system
CN105016013A (en) * 2015-07-21 2015-11-04 深圳怡化电脑股份有限公司 Anti-wear belt clip and cash slot

Similar Documents

Publication Publication Date Title
JP2003089452A (en) Sheet conveyance device and image forming device provided with sheet conveyance device
US5349199A (en) Sensing apparatus for reducing sheet detection and registration errors by using multiple light beam reflections
JP3818105B2 (en) Document reader
JPH0578001A (en) Carrier device
JP3848147B2 (en) Image forming apparatus
JP2020152467A (en) Sheet conveyance device and image forming device
JP2003226446A (en) Image forming device
JP2002326399A (en) Imaging apparatus and imaging method
JP7438663B2 (en) Sheet conveyance device
JPH1144977A (en) Image forming device
JP2003333277A (en) Document feeder, document reader equipped with the same, and image forming device
JP3299585B2 (en) Paper feeder
JPH09319168A (en) Copying machine/printer
US6798998B2 (en) Carrying apparatus and image forming apparatus
JPH08254912A (en) Fixing device and image forming device
JP4198633B2 (en) Image forming apparatus, image reading apparatus, image forming method, image forming program, and recording medium therefor
JPH10236690A (en) Image reader and image processor
JPH0881091A (en) Image forming device
JP2002232643A (en) Original feeder and image forming device provided with this feeder
JP3595664B2 (en) Sheet conveying device and image forming device
JPH01122847A (en) Picture forming device
JP3067071B2 (en) Electrophotographic recording device
JPH05107968A (en) Paper carrying device for image forming device
JP2001302053A (en) Sheet conveyance device and picture image reading device
JP2002232642A (en) Original feeder and image forming device provided with this feeder