JP2821747B2 - Inkjet printer - Google Patents
Inkjet printerInfo
- Publication number
- JP2821747B2 JP2821747B2 JP63190587A JP19058788A JP2821747B2 JP 2821747 B2 JP2821747 B2 JP 2821747B2 JP 63190587 A JP63190587 A JP 63190587A JP 19058788 A JP19058788 A JP 19058788A JP 2821747 B2 JP2821747 B2 JP 2821747B2
- Authority
- JP
- Japan
- Prior art keywords
- spur
- paper
- recording paper
- roller
- shaft
- 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 - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/02—Rollers
- B41J13/076—Construction of rollers; Bearings therefor
Landscapes
- Handling Of Cut Paper (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はインクジェットプリンタの記録用紙の給排紙
装置に関し、特に給排紙装置を構成する拍車の構造、材
質に関する。Description: BACKGROUND OF THE INVENTION (Field of Industrial Application) The present invention relates to a recording paper supply / discharge device of an ink jet printer, and more particularly to a structure and a material of a spur constituting a paper supply / discharge device.
（従来の技術） インクジェットプリンタは印字ヘッドと記録用紙の相
対的な動きに同期し、データ信号に応じたインク滴を印
字ヘッドのインク吐出口であるノズルから噴射し、この
インク滴を記録用紙に付着させることによって印字を行
なうものである。そして、一般には、記録用紙を給排紙
するための紙の搬送には普通ゴムのローラを記録用紙の
両側から押圧力をもって接触（以下、圧接という）さ
せ、このローラを回転させることにより行なっている
が、インクジェットプリンタにおいては印字直後の印字
されたインクが未定着の状態のままでローラを当てるこ
とになりローラにインクが付着し、そのインクが記録用
紙に再付着して記録用紙を汚すので、印字面には先端の
とがった拍車を当てている。この拍車は支持部材によっ
て支持され、この支持部材ともにばねにより記録用紙に
向って付勢される。(Prior Art) An ink jet printer synchronizes with the relative movement of a print head and recording paper, ejects ink droplets corresponding to a data signal from a nozzle serving as an ink discharge port of the print head, and discharges the ink droplets onto recording paper. Printing is carried out by attaching them. In general, paper is transported for feeding and discharging the recording paper by bringing ordinary rubber rollers into contact with the pressing force from both sides of the recording paper (hereinafter, referred to as pressure contact) and rotating the rollers. However, in an ink-jet printer, the printed ink immediately after printing is applied to the roller while it is in an unfixed state, and the ink adheres to the roller, and the ink adheres to the recording paper and stains the recording paper. The print surface has a spur with a sharp tip. The spur is supported by a support member, and both of the support member are urged toward the recording sheet by a spring.
（発明が解決しようとする課題） 前述した従来技術では、拍車とは別に、記録用紙に適
当な圧接力を与えるため、拍車を支持して動ける支持部
材、及び拍車と該支持部材をともに付勢するばねが必要
であり部品点数が多くなって給排紙系装置にコストがか
かるという問題点がある。(Problems to be Solved by the Invention) In the above-described prior art, in addition to the spur, in order to apply an appropriate pressing force to the recording sheet, a support member that can move while supporting the spur, and both the spur and the support member are urged. However, there is a problem that a spring is required, the number of parts is increased, and the cost of the paper supply / discharge system is increased.
そこで、本発明は従来技術の上記した問題点を解決す
るためになされたもので、その目的とするところは、ば
ねや支持部材を不要として記録用紙に適当な圧接力を付
与することのできる拍車を備えたインクジェットプリン
タを提供することにある。Therefore, the present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a spur that can apply an appropriate pressing force to recording paper without the need for a spring or a supporting member. An object of the present invention is to provide an ink jet printer provided with the above.
（課題を解決するための手段） 上記の目的を達成するために、本発明にあっては、記
録紙を搬送するローラと、該ローラに前記記録紙を圧接
させて回転される拍車と、を有するインクジェットプリ
ンタにおいて、前記拍車の軸にばね性を持たせ、前記拍
車が前記ローラに圧接するように、前記拍車の軸を前記
ローラ方向に撓むように支持し、前記拍車は、前記拍車
の軸と別部品で設けられ、前記拍車の軸に対して回転自
在であることにより構成されている。(Means for Solving the Problems) In order to achieve the above object, according to the present invention, a roller for conveying a recording sheet and a spur rotated by pressing the recording sheet against the roller are provided. In the inkjet printer having the spur shaft, the spur shaft is provided with a spring property, so that the spur is pressed against the roller, the spur shaft is supported so as to bend in the roller direction, and the spur is connected to the spur shaft. It is provided as a separate part and is configured to be rotatable about the axis of the spur.
（作用） 上記の構成を有する本発明においては、拍車の軸にば
ね性を持たせることによって、拍車以外の部品を少なく
して記録用紙に適当な圧接力を与え、拍車は拍車の軸と
別部品で設けられ、前記拍車の軸に対して回転自在であ
る。(Operation) In the present invention having the above-described configuration, the spur shaft is provided with resiliency to reduce the number of parts other than the spur to apply an appropriate pressing force to the recording paper, and the spur is separated from the spur shaft. It is provided as a component and is rotatable about the axis of the spur.
（実施例） 以下に本発明を図示の実施例に基づいて説明する。第
２図は本発明を適用したインクジェットプリンタの概略
構成を示し、同図において、印字ヘッド１は印字信号に
よってインクを吐出し、インクタンク２によりインクが
供給される。ガイド軸３には、前記印字ヘッド１とイン
クタンク２を載せたキャリッジ４がガイドされ、図示し
ないベルト伝導機構及び駆動モータにより、前記ガイド
軸３に沿って往復駆動される。記録用紙５は、前記印字
ヘッド１に正対する位置にあるプラテン６によって裏側
から保持される。このプラテン６に対し記録用紙５は紙
押え板７によって密着される。密着された記録用紙５
は、送紙ローラ８により送られる。印字の終った記録用
紙５は排紙ローラ９によって排紙される。この排紙ロー
ラ９に対向して拍車10が設けられ、記録用紙５を圧接す
る。拍車10は、後述する軸の撓みによる圧接力で記録用
紙５に向って付勢される。前記送紙ローラ８と排紙ロー
ラ９は、紙送りモータ12により駆動される。また回復系
装置13は、前記印紙ヘッド１の吐出孔の目詰まり等を防
止するための回復動作を行ない、さらに印字を行なわな
いときの吐出孔の乾燥を防ぐためのキャップ動作を行な
う。この駆動系装置13は、回復系駆動モータ14により駆
動される。(Example) Hereinafter, the present invention will be described based on an illustrated example. FIG. 2 shows a schematic configuration of an ink jet printer to which the present invention is applied. In FIG. 2, a print head 1 discharges ink according to a print signal, and ink is supplied from an ink tank 2. A carriage 4 on which the print head 1 and the ink tank 2 are mounted is guided on the guide shaft 3, and is reciprocated along the guide shaft 3 by a belt transmission mechanism and a drive motor (not shown). The recording paper 5 is held from the back side by a platen 6 located at a position facing the print head 1. The recording paper 5 is brought into close contact with the platen 6 by a paper pressing plate 7. Adhered recording paper 5
Is sent by the paper feed roller 8. The recording paper 5 on which printing has been completed is discharged by a discharge roller 9. A spur 10 is provided to face the paper discharge roller 9 and presses the recording paper 5 into pressure. The spur 10 is urged toward the recording paper 5 by a pressing force due to the bending of a shaft described later. The paper feed roller 8 and the paper discharge roller 9 are driven by a paper feed motor 12. The recovery system device 13 performs a recovery operation for preventing clogging or the like of the ejection holes of the printing paper head 1, and further performs a cap operation for preventing drying of the ejection holes when printing is not performed. The drive system device 13 is driven by a recovery system drive motor 14.
尚、記録用紙５はペーパーパン15に沿って挿入され
る。The recording paper 5 is inserted along the paper pan 15.
次に、上記インクジェットプリンタの動作について説
明する。ペーパーパン15に沿って挿入された記録用紙５
は、送紙ローラ８によって挿入側先端がユーターンされ
た状態でプラテン６へ送られ押え板７によってプラテン
６に密着される。印字信号によって印字ヘッド１からイ
ンク滴が噴出され、記録用紙５に付着する。この付着に
よって文字や画像が形成される。この印字動作が進行す
るにつれて、記録用紙５の印字の終了した部分は順次送
紙ローラ８によって上方に送られる。そして記録用紙５
の先端部分が拍車10に達すると、記録用紙５は印字面か
ら拍車10によって押され背面が排紙ローラ９に圧接さ
れ、排紙ローラ９の回転により、さらに上方に搬送さ
れ、外部に排出される。Next, the operation of the inkjet printer will be described. Recording paper 5 inserted along paper pan 15
Is fed to the platen 6 in a state where the leading end on the insertion side is turned by the paper feed roller 8 and is brought into close contact with the platen 6 by the pressing plate 7. Ink droplets are ejected from the print head 1 by the print signal and adhere to the recording paper 5. Characters and images are formed by this adhesion. As the printing operation proceeds, the portion of the recording paper 5 where printing has been completed is sequentially fed upward by the paper feed roller 8. And recording paper 5
When the leading end of the recording paper 5 reaches the spur 10, the recording paper 5 is pushed from the printing surface by the spur 10, and the back surface is pressed against the paper discharge roller 9, and is further conveyed upward by the rotation of the paper discharge roller 9 to be discharged to the outside. You.
ところで、上記拍車10は第１図（ａ），（ｂ）に示す
ように構成されている。即ち、本第１実施例は、軸の撓
みによって圧接力を得る場合の実施例である。The spur 10 is configured as shown in FIGS. 1 (a) and 1 (b). That is, the first embodiment is an embodiment in which a pressing force is obtained by bending the shaft.
図において、10は拍車、22は前記拍車10が備えられる
弾性軸、９はゴム等からなる排紙ローラ、24は前記拍車
10及び弾性軸22を支持する拍車ホルダである。拍車10と
排紙ローラ９の間を通る印字された記録用紙５に対し、
この記録用紙５を搬送するのに必要な適切な圧接力を与
えるために、弾性軸22が第１図（ｂ）に示すように若干
撓むように、排紙ローラ９、拍車10、拍車ホルダ24の３
つの位置を設定する。In the figure, 10 is a spur, 22 is an elastic shaft provided with the spur 10, 9 is a paper discharge roller made of rubber or the like, and 24 is the spur.
This is a spur holder that supports the elastic shaft 10 and the elastic shaft 22. For the printed recording paper 5 passing between the spur 10 and the paper discharge roller 9,
In order to apply an appropriate pressing force necessary to convey the recording paper 5, the discharge roller 9, the spur 10, and the spur holder 24 are so bent that the elastic shaft 22 is slightly bent as shown in FIG. 3
Set one position.
本実施例においては、弾性軸22と拍車10が別部品であ
り、拍車10は弾性軸22に対して、回転自在に軸支された
ものである。In the present embodiment, the elastic shaft 22 and the spur 10 are separate components, and the spur 10 is rotatably supported on the elastic shaft 22.
（発明の効果） 以上説明したように本発明のインクジェットプリンタ
は、拍車の軸にばね性を持たせたことにより、拍車が記
録用紙を押える圧接力を得るための支持部材やばね等か
らなる特別な機構を必要とせず、部品点数が少なく給排
紙系装置のコストを抑えることができる。(Effect of the Invention) As described above, the ink jet printer of the present invention has a spur shaft having a spring property, so that the spur includes a supporting member, a spring, and the like for obtaining a pressing force for pressing the recording paper against the recording paper. A simple mechanism is not required, the number of components is small, and the cost of the paper supply / discharge system can be suppressed.
第１図（ａ），（ｂ）は本発明における拍車の第１実施
例を示す斜視図，平面図、第２図は同実施例を適用した
インクジェットプリンタを示す概略斜視図、 符号の説明 １……印字ヘッド、２……インクタンク ３……ガイド軸、４……キャリッジ ５……記録用紙、６……プラテン ７……押え板、８……送紙ローラ ９……排紙ローラ、10……拍車 11………ばね、12……紙送りモータ 13……回復系装置 14……回復系駆動モータ 22……弾性軸、24……拍車ホルダ1 (a) and 1 (b) are a perspective view and a plan view showing a first embodiment of a spur according to the present invention, and FIG. 2 is a schematic perspective view showing an ink jet printer to which the first embodiment is applied. ... print head, 2 ... ink tank 3 ... guide shaft, 4 ... carriage 5 ... recording paper, 6 ... platen 7 ... holding plate, 8 ... paper feed roller 9 ... paper discharge roller, 10 …… Spur 11 …… Spring, 12… Paper feed motor 13 …… Recovery system device 14 …… Recovery system drive motor 22 …… Elastic shaft, 24 …… Spur holder
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B65H 5/00 - 5/38 B65H 29/00 - 29/70 B41J 13/076──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) B65H 5/00-5/38 B65H 29/00-29/70 B41J 13/076
Claims (1)
記記録紙を圧接させて回転される拍車と、を有するイン
クジェットプリンタにおいて、 前記拍車の軸にばね性を持たせ、前記拍車が前記ローラ
に圧接するように、前記拍車の軸を前記ローラ方向に撓
むように支持し、 前記拍車は、前記拍車の軸と別部品で設けられ、前記拍
車の軸に対して回転自在であることを特徴とするインク
ジェットプリンタ。1. An ink jet printer comprising: a roller for conveying a recording sheet; and a spur rotated by pressing the recording sheet against the roller, wherein the spur shaft has a spring property, and the spur is The spur shaft is supported so as to bend in the direction of the roller so as to be in pressure contact with a roller. The spur is provided as a separate part from the spur shaft, and is rotatable with respect to the spur shaft. And an inkjet printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63190587A JP2821747B2 (en) | 1988-08-01 | 1988-08-01 | Inkjet printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63190587A JP2821747B2 (en) | 1988-08-01 | 1988-08-01 | Inkjet printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0241277A JPH0241277A (en) | 1990-02-09 |
| JP2821747B2 true JP2821747B2 (en) | 1998-11-05 |
Family
ID=16260547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63190587A Expired - Lifetime JP2821747B2 (en) | 1988-08-01 | 1988-08-01 | Inkjet printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2821747B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2763387B2 (en) * | 1990-07-20 | 1998-06-11 | キヤノン株式会社 | Sheet transport device and printer having the sheet transport device |
| US5648807A (en) * | 1992-09-10 | 1997-07-15 | Seiko Epson Corporation | Ink jet recording apparatus having an antismear sheet deformation discharge system |
| IT1276493B1 (en) * | 1995-07-12 | 1997-10-31 | Olivetti & Co Spa | ALIGNMENT AND ADVANCE DEVICE OF A DOCUMENT |
| DE69902710T2 (en) | 1998-04-09 | 2003-08-07 | Seiko Epson Corp., Tokio/Tokyo | Sheet pressing element for sheet feeding |
| US6181908B1 (en) * | 1999-09-10 | 2001-01-30 | Lexmark International, Inc. | Apparatus for corrugating materials |
| US6851801B2 (en) * | 2001-08-29 | 2005-02-08 | Canon Kabushiki Kaisha | Recording material conveying device and ink jet recording apparatus using such device |
| JP4051539B2 (en) * | 2002-03-07 | 2008-02-27 | セイコーエプソン株式会社 | Toothed roller, paper discharge device, inkjet recording device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5221503U (en) * | 1975-07-31 | 1977-02-16 | ||
| JP2804473B2 (en) * | 1986-03-18 | 1998-09-24 | キヤノン株式会社 | Printer ejection device |
| JPS634945U (en) * | 1986-06-27 | 1988-01-13 |
-
1988
- 1988-08-01 JP JP63190587A patent/JP2821747B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0241277A (en) | 1990-02-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080904 Year of fee payment: 10 |
|
| EXPY | Cancellation because of completion of term |