JPH018371Y2 - - Google Patents
Info
- Publication number
- JPH018371Y2 JPH018371Y2 JP1982191017U JP19101782U JPH018371Y2 JP H018371 Y2 JPH018371 Y2 JP H018371Y2 JP 1982191017 U JP1982191017 U JP 1982191017U JP 19101782 U JP19101782 U JP 19101782U JP H018371 Y2 JPH018371 Y2 JP H018371Y2
- Authority
- JP
- Japan
- Prior art keywords
- print head
- ground wire
- head
- printer
- static electricity
- 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
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
Description
【考案の詳細な説明】
本考案は、印字ヘツドが記録紙の幅方向に往復
移動するシリアルプリンタに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a serial printer in which a print head moves back and forth in the width direction of recording paper.
この種のプリンタでは、キヤリツジに搭載され
た印字ヘツドがその移動時にインクリボンとこす
れ合い、かつ印字ハンマ等の印字要素は高周波数
でインクリボン、および記録紙を叩き、このとき
静電気が発生する。キヤリツジは近年ではエンジ
ニアリングプラスチツクにて形成されるために、
ヘツド移動時に印字ヘツドに発生した静電気は行
き場がなく印字ヘツドに蓄積し、遂には放電して
プリンタの誤動作、ひどい場合は故障をも引き起
こす結果を招く。 In this type of printer, a print head mounted on a carriage rubs against the ink ribbon during movement, and printing elements such as a print hammer strike the ink ribbon and recording paper at high frequencies, generating static electricity. In recent years, carriages have been made of engineering plastic, so
Static electricity generated on the print head when the head is moved has nowhere to go and accumulates in the print head, eventually discharging and causing printer malfunctions and, in severe cases, failure.
本考案は、上記不都合を解消せんとするもので
あり、以下その一実施例について説明する。 The present invention aims to solve the above-mentioned disadvantages, and one embodiment thereof will be described below.
第１図および第２図において、プリンタ地板１
に固着された側板２にガイド軸３が取付けてあ
り、このガイド軸３にキヤリツジ４が左右に摺動
自在に嵌合している。キヤリツジ４はプラスチツ
クにて形成され、印字ヘツド５の金属部に連結し
たヘツド支持板６がネジ７を介してキヤリツジ４
上面に定着されている。フレキシブルケーブル８
は、通常の信号線８ａ，８ｂに加えてアース線８
ｃを有しており、信号線８ａ，８ｂは印字ヘツド
５の入力端子５ａ，５ｂに接続され、アース線８
ｃはネジ７を介してヘツド支持板６に接続されて
いる。一方、プリンタ地板１上には、図示しない
ケーブルを介して印字ヘツド駆動回路に接続して
いるコネクタ９が設けてあり、第３図示の如くこ
のコネクタ９に信号８ａ，８ｂが接続している。
アース線８ｃはコネクタ９を貫通しネジ１０を介
してプリンタ地板１に接続されている。勿論、こ
のプリンタ地板１は、アース電位に落とされてい
るプリンタ部品の一つであることは言うまでもな
い。 In Figures 1 and 2, printer base plate 1
A guide shaft 3 is attached to a side plate 2 fixed to the side plate 2, and a carriage 4 is fitted onto the guide shaft 3 so as to be slidable left and right. The carriage 4 is made of plastic, and a head support plate 6 connected to the metal part of the print head 5 is connected to the carriage 4 through screws 7.
It is fixed on the top surface. flexible cable 8
In addition to the normal signal lines 8a and 8b, the ground line 8
The signal lines 8a and 8b are connected to the input terminals 5a and 5b of the print head 5, and the ground line 8
c is connected to the head support plate 6 via screws 7. On the other hand, a connector 9 is provided on the printer base plate 1 and is connected to a print head drive circuit via a cable (not shown), and signals 8a and 8b are connected to this connector 9 as shown in the third figure.
The ground wire 8c passes through the connector 9 and is connected to the printer base plate 1 via a screw 10. Of course, it goes without saying that the printer base plate 1 is one of the printer parts that is at ground potential.
なお第２図において、印字ヘツド５の前方には
インクリボン１１および記録紙１２が挿置され、
その背後に図示しないプラテンが位置している。 In FIG. 2, an ink ribbon 11 and recording paper 12 are placed in front of the print head 5.
A platen (not shown) is located behind it.
キヤリツジ４がガイド軸３に沿つて移動すると
き、ケーブル８の信号線８ａ，８ｂを介して印字
ヘツド５に駆動信号が印加され、記録紙１２に所
望の印字が為される。このとき印字ヘツド５の印
字要素（図示せず。）が高周波数でインクリボン
１１を記録紙１２に叩きつけることによつて、ま
たインクリボン１１が印字ヘツド５と摩擦するこ
とによつて、印字ヘツド５に静電気が発生する。 When the carriage 4 moves along the guide shaft 3, a drive signal is applied to the print head 5 via the signal lines 8a and 8b of the cable 8, and a desired print is made on the recording paper 12. At this time, the printing elements (not shown) of the printing head 5 strike the ink ribbon 11 against the recording paper 12 at a high frequency, and the ink ribbon 11 rubs against the printing head 5, thereby causing the printing head to 5. Static electricity is generated.
しかし、この静電気は印字ヘツド５の金属部に
連結されたヘツド支持板６、その取付用のネジ
７、ケーブル８のアース線８ｃおよびネジ１０を
介してプリンタ地板１に落とされる。したがつて
静電気が印字ヘツド５に蓄積することがない。 However, this static electricity is dropped onto the printer base plate 1 through the head support plate 6 connected to the metal part of the print head 5, the screw 7 for its attachment, the ground wire 8c of the cable 8, and the screw 10. Therefore, static electricity does not accumulate on the print head 5.
なお上記実施例において、印字ヘツド５の金属
部にケーブル８のアース線８ｃを直接に接続して
もよい。 In the above embodiment, the ground wire 8c of the cable 8 may be directly connected to the metal part of the print head 5.
本考案によれば、キヤリツジを絶縁材料で形成
しても静電気が印字ヘツドに蓄積することがない
から、静電気による印字ヘツド５の誤動作または
故障が防止できる。また静電気を落とすためのア
ース線を印字ヘツドの信号用ケーブルに設けるだ
けで、上記の静電気対策が非常に簡単に実施でき
る。 According to the present invention, even if the carriage is made of an insulating material, static electricity does not accumulate in the print head, so that malfunction or failure of the print head 5 due to static electricity can be prevented. Furthermore, the above-mentioned countermeasure against static electricity can be implemented very easily by simply providing a ground wire to the signal cable of the printing head to remove static electricity.
図面は本考案の一実施例を示したものであつ
て、第１図はその背面図、第２図は要部平面図、
第３図は第１図Ａ部の平面図である。
１……プリンタ地板、３……ガイド軸、４……
キヤリツジ、５……印字ヘツド、６……ヘツド支
持板、７……ネジ、８……フレキシブルケーブ
ル、８ａ，８ｂ……信号線、８ｃ……アース線、
１０……ネジ、１１……インクリボン、１２……
記録紙。
The drawings show one embodiment of the present invention, in which Fig. 1 is a rear view thereof, Fig. 2 is a plan view of the main part,
FIG. 3 is a plan view of section A in FIG. 1. 1...Printer base plate, 3...Guide shaft, 4...
Carriage, 5...Print head, 6...Head support plate, 7...Screw, 8...Flexible cable, 8a, 8b...Signal line, 8c...Ground wire,
10...screw, 11...ink ribbon, 12...
Recording paper.
Claims (1)
材料で形成されたキヤリツジに印字ヘツドが搭載
してあり、 上記印字ヘツドに駆動信号を供給する信号線を
有するフレキシブルケーブルにアース線が設けて
あり、 上記印字ヘツドの金属部またはそれに連結され
た金属部品に上記アース線の一端部が接続される
一方、固定側のアースされているプリンタ部品に
上記アース線の他端部が接続されている ことを特徴とするシリアルプリンタ。[Claims for Utility Model Registration] A print head is mounted on a carriage made of an insulating material that is slidably supported by a guide shaft, and has a signal line that supplies a drive signal to the print head. A ground wire is provided on the flexible cable, and one end of the ground wire is connected to the metal part of the print head or a metal part connected to it, while the ground wire is connected to the grounded printer part on the fixed side. A serial printer characterized in that the other end is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19101782U JPS5994863U (en) | 1982-12-17 | 1982-12-17 | serial printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19101782U JPS5994863U (en) | 1982-12-17 | 1982-12-17 | serial printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5994863U JPS5994863U (en) | 1984-06-27 |
| JPH018371Y2 true JPH018371Y2 (en) | 1989-03-06 |
Family
ID=30411439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19101782U Granted JPS5994863U (en) | 1982-12-17 | 1982-12-17 | serial printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5994863U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61262162A (en) * | 1985-05-16 | 1986-11-20 | Oki Electric Ind Co Ltd | Wire dot head driving circuit of printer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5567849U (en) * | 1978-11-02 | 1980-05-10 |
-
1982
- 1982-12-17 JP JP19101782U patent/JPS5994863U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5994863U (en) | 1984-06-27 |
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