JPS6285971A - Paper guide construction for printer - Google Patents

Paper guide construction for printer

Info

Publication number
JPS6285971A
JPS6285971A JP22571585A JP22571585A JPS6285971A JP S6285971 A JPS6285971 A JP S6285971A JP 22571585 A JP22571585 A JP 22571585A JP 22571585 A JP22571585 A JP 22571585A JP S6285971 A JPS6285971 A JP S6285971A
Authority
JP
Japan
Prior art keywords
paper
platen
guide plate
gap
printing head
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
JP22571585A
Other languages
Japanese (ja)
Inventor
Sadao Shimizu
清水　貞男
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP22571585A priority Critical patent/JPS6285971A/en
Publication of JPS6285971A publication Critical patent/JPS6285971A/en
Pending legal-status Critical Current

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
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/14—Aprons or guides for the printing section
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0045—Guides for printing material
    • B41J11/005—Guides in the printing zone, e.g. guides for preventing contact of conveyed sheets with printhead
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/62—Shields or masks

Landscapes

  • Handling Of Cut Paper (AREA)

Abstract

PURPOSE:To enable a paper to be fed constantly favorably regardless of the thickness of the paper, by providing a platen, a printing head and a spring which is integral with the printing head so that a paper guide plate can be minutely moved relative to the printing head and is energized toward the platen by the spring. CONSTITUTION:A guide plate 5 is fastened to a printing head 3 by engaging a pair of fitting holes 5b respectively to a pair of guide posts 4 with play. A lower side part of an L-shaped spring plate 6 is maintained in contact with the top face of the printing head 3. The guide plate 5 is normally energized toward a platen 1 by the spring plate 6, so that the gap between a paper bail part 5a and the platen 1 is minimized. Therefore, a paper 2 small in thickness is appropriately passed through the gap, and is printed. When a thicker paper 2 is fed, the guide plate 5 is pressed and moved by the paper 2 away from the platen 1 against the elastic force exerted by the spring plate 6, whereby the gap is enlarged, and the paper 2 is appropriately passed through the gap. Namely, the guide plate 5 can be minutely moved by an amount corresponding to a dimension (x) in the front-back direction.

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、プリンタのヘッド部の用紙ガイド構造に関し
、特に各種用紙厚に対応出来る用紙ガイド構造に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper guide structure for a printer head, and more particularly to a paper guide structure that can accommodate various paper thicknesses.

［従来の技術］ 従来、この種の用紙ガイド構造は、ヘッド上に固定した
薄肉透明のプラスチックガイド板をプラテン面に所定ギ
ャップを介して対向離間させ、このギャップにより用紙
を案内していた。そして用紙の厚さが変わったときは１
手動によりガイド板を前後方向に微動させて調整し、適
正なギャップを保持して各種用紙をガイドしていた。[Prior Art] Conventionally, in this type of paper guide structure, a thin transparent plastic guide plate fixed on a head is spaced apart from the platen surface with a predetermined gap therebetween, and the paper is guided through this gap. And when the thickness of the paper changes, 1
The guide plate was manually adjusted by slightly moving it in the front and back directions to maintain an appropriate gap and guide various types of paper.

［解決すべき問題点］ しかるに、上記従来例では、ガイド板を固定したままで
は、ギャップも固定されるため、用紙厚さか変わったと
きは、適正なガイドが行なえなくなり、用紙送りが困難
となったりたるみを生じたりするという問題点があり、
又ガイド板を用紙厚さに対応して移動させるものでは、
調整作業が面倒であるという問題点があった。[Problems to be Solved] However, in the above conventional example, if the guide plate is fixed, the gap is also fixed, so if the thickness of the paper changes, it becomes impossible to guide it properly, making it difficult to feed the paper. There is a problem that it may cause sagging,
Also, if the guide plate is moved according to the paper thickness,
There was a problem that adjustment work was troublesome.

［問題点の解決ｐ段］ 本発明はに記問題点を解決したものであり、プラテンと
、プラテンに対向配設された印字ヘッドと、ハネ「一段
を一体的に有し、＋ｉｉｉ記印字ヘッドに対し微動自在
にかつ該バネ１段により前記プラテン方向へ付勢されて
係ｌｌ：され、該プラテンとの間に用紙通過用のギャッ
プを形成する用紙ガイド板とより構成してなるものであ
る。[Stage p of the problem] The present invention solves the problem described in iii. and a paper guide plate that is movable in the direction of the platen and biased toward the platen by the first stage of springs to form a gap between the paper guide plate and the platen for paper passage. .

［実施例］ 次に、その実施例を第１図、第２図と共に説明する。[Example] Next, an example thereof will be explained with reference to FIGS. 1 and 2.

第１図及び第２図は夫々本発明に係るプリンタの用紙ガ
イド構造の一実施例の斜視図及びその要部の上面図であ
る。1 and 2 are a perspective view and a top view of essential parts of an embodiment of a paper guide structure for a printer according to the present invention, respectively.

各図中、■はプラテン、２は用紙であり、用紙２はプラ
テンｌに巻回されて矢印方向へ送られる。３は印字ヘッ
ドで、一対のガイドポスト４を右し、プラテンｌに対向
して配される。In each figure, ■ is a platen, 2 is paper, and paper 2 is wound around platen l and sent in the direction of the arrow. Reference numeral 3 denotes a print head, which is placed on the right side of a pair of guide posts 4 and facing the platen l.

５は薄肉、透明のプラスチックガイド板で、湾曲した用
紙押え部５ａ、一対の嵌合孔５ｂを有し、更に下部に金
属製り字形バネ板６がインサート成型されている。ガイ
ド板５は、印字ヘッド３に対し、　対の嵌合孔５ｂが夫
々　対のカイトポスト４に０嵌されて係１１−され、こ
のときＬ字形バネ板６のド辺部が印字ヘッド３の−Ｌ面
に当接される。Reference numeral 5 denotes a thin, transparent plastic guide plate, which has a curved paper holding portion 5a and a pair of fitting holes 5b, and further has a metal L-shaped spring plate 6 insert-molded in its lower part. The guide plate 5 is engaged with the print head 3 by fitting the pair of fitting holes 5b into the pair of kite posts 4, respectively. -Abutted against the L surface.

従って、ガイド板５は通常は／＜ネ板６によりプラテン
１力向へ付勢されて（このとき相対的にガイドポスト４
は第２図中符１４．４　１の位置にある）、用紙押え部
５ａ及びプラテン１間のギャップは最小となる。従って
、この場合用紙厚さの小なる用紙２が適正にギャップを
通過し、印字がなされる。Therefore, the guide plate 5 is normally urged in the direction of the force on the platen 1 by the platen 6 (at this time, the guide plate 5 is relatively
is located at the position 14.41 in FIG. Therefore, in this case, the paper 2 having a small paper thickness properly passes through the gap and printing is performed.

次に、用紙厚さの大なる用紙２が送られるときは、ガイ
ド板５は用紙２によりプラテン１から離れる方向へバネ
板６のバネ性に抗して押圧されて移動しくこのとき相対
的にガイドポスト４は第２図中符１１．４　２の位置又
はその近傍に移動する）、Ｌ記ギャンブは大となり、用
紙２は適正にギャップな通過する。即ち、ガイド板５は
第２図中、寸法χ分前後に微動することが可能である。Next, when a thick sheet of paper 2 is fed, the guide plate 5 is pushed by the sheet of paper 2 in a direction away from the platen 1 against the springiness of the spring plate 6, and at this time, the guide plate 5 moves relatively. When the guide post 4 moves to or near the position 11.42 in FIG. That is, the guide plate 5 can be slightly moved back and forth by the dimension χ in FIG.

これによれば、ガイド板５は、用紙２の厚さに応じて自
動的に＋ｉｉ後に移動して適正なギャップを形成するの
で、用紙２は常に適正に印字されつつ通過でき、又用紙
ガイド５の微動調整の作業も不要である。According to this, the guide plate 5 automatically moves backward +ii according to the thickness of the paper 2 to form an appropriate gap, so the paper 2 can always pass through while being properly printed, and the paper guide 5 There is no need for fine adjustment work.

［発明の効果］ 以り説明した如く、本発明は、バネ１段を設けた用紙ガ
イドを、印字ヘッドに対し、該バネｆ段によりプラテン
方向へ付勢されてプラテンとの間にキャンプを形成する
よう係１にしてなるため、用紙厚さが変わっても用紙ガ
イドは該用紙厚さに規制されバネ１段に抗して調整的に
微動してプラテンとの間に用紙厚さに応じた適正なギャ
ップを形成でき、用紙を常に良好に送ることができ、又
用紙ガイドの微動作業を不要としＬ数を低減しうるとい
う効果がある。[Effects of the Invention] As explained above, in the present invention, the paper guide provided with one stage of springs is biased toward the platen by the stage f of springs against the print head to form a camp between the paper guide and the platen. Therefore, even if the paper thickness changes, the paper guide is regulated to the paper thickness and adjusts slightly against the spring 1 stage to adjust the distance between it and the platen according to the paper thickness. An appropriate gap can be formed, the paper can always be fed well, and the number of L can be reduced by eliminating the need for fine movement of the paper guide.

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

第１図及び第２図は夫々本発明に係るプリンタの用紙ガ
イド構造の一実施例の斜視図及びその要部の上面図であ
る。 ■＝ニブラテン　　２：用紙 ３：印字ヘッド　　４ニガイドポスト ５：用紙ガイド　　５ａ：用紙押え部 ５ｂ：嵌合孔　　　６：バネ板1 and 2 are a perspective view and a top view of essential parts of an embodiment of a paper guide structure for a printer according to the present invention, respectively. ■ = Nibraten 2: Paper 3: Print head 4 Ni guide post 5: Paper guide 5a: Paper holding part 5b: Fitting hole 6: Spring plate

Claims (1)

【特許請求の範囲】[Claims] プラテンと、プラテンに対向配設された印字ヘッドと、
バネ手段を一体的に有し、前記印字ヘッドに対し微動自
在にかつ該バネ手段により前記プラテン方向へ付勢され
て係止され、該プラテンとの間に用紙通過用のギャップ
を形成する用紙ガイド板とより構成してなるプリンタの
用紙ガイド構造。a platen, a print head disposed opposite to the platen,
A paper guide that integrally includes a spring means, is movable with respect to the print head, is biased toward the platen by the spring means and is locked, and forms a gap between the platen and the platen for paper passage. A paper guide structure for a printer consisting of a plate.
JP22571585A 1985-10-09 1985-10-09 Paper guide construction for printer Pending JPS6285971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22571585A JPS6285971A (en) 1985-10-09 1985-10-09 Paper guide construction for printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22571585A JPS6285971A (en) 1985-10-09 1985-10-09 Paper guide construction for printer

Publications (1)

Publication Number Publication Date
JPS6285971A true JPS6285971A (en) 1987-04-20

Family

ID=16833670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22571585A Pending JPS6285971A (en) 1985-10-09 1985-10-09 Paper guide construction for printer

Country Status (1)

Country Link
JP (1) JPS6285971A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04369568A (en) * 1991-06-18 1992-12-22 Juki Corp Medium printer
FR2720686A1 (en) * 1994-04-14 1995-12-08 Seiko Epson Corp Serial printer.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04369568A (en) * 1991-06-18 1992-12-22 Juki Corp Medium printer
FR2720686A1 (en) * 1994-04-14 1995-12-08 Seiko Epson Corp Serial printer.

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