JPS638947U - - Google Patents
Info
- Publication number
- JPS638947U JPS638947U JP10356886U JP10356886U JPS638947U JP S638947 U JPS638947 U JP S638947U JP 10356886 U JP10356886 U JP 10356886U JP 10356886 U JP10356886 U JP 10356886U JP S638947 U JPS638947 U JP S638947U
- Authority
- JP
- Japan
- Prior art keywords
- conductive member
- circumferential surface
- outer circumferential
- platen roller
- thermal 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
Links
Landscapes
- Electronic Switches (AREA)
Description
第１図ないし第３図は、この考案の一実施例を
示し、第１図は要部の側面図、第２図は第１図の
正面図、第３図は第１図の要部拡大図、第４図お
よび第５図は従来のサーマルプリンタ装置を示す
要部の側面図および正面図である。
１…サーマルヘツド、２…プラテンローラ、３
…プリント紙、４…ばね、７ａ，７ｂ…対電極、
９…制御回路、１０…制御装置。なお、図中、同
一符号は同一または相当部分を示す。
Figures 1 to 3 show an embodiment of this invention, with Figure 1 being a side view of the main parts, Figure 2 being a front view of Figure 1, and Figure 3 being an enlarged view of the main parts of Figure 1. 4 and 5 are a side view and a front view of the main parts of a conventional thermal printer device. 1...Thermal head, 2...Platen roller, 3
...Printed paper, 4...Spring, 7a, 7b...Counter electrode,
9...Control circuit, 10...Control device. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
の外周面に押圧してなるサーマルプリンタ装置で
あつて、上記プラテンローラの軸線方向両端の外
周面部分を導電性部材で形成するとともに、上記
サーマルヘツドにおける上記各導電性部材に対応
する部分で、この導電性部材との接触部の両側に
、それぞれ対電極を設け、これら対電極間の電気
抵抗値の変化にもとづいて、上記サーマルヘツド
の上記プラテンローラの外周面への押圧力がほぼ
一定に保たれるように、上記ばね力を自動制御す
る制御装置を設けたことを特徴とするサーマルプ
リンタ装置。 A thermal printer device in which a thermal head is pressed against the outer circumferential surface of a platen roller by a spring force, wherein the outer circumferential surface portions at both ends in the axial direction of the platen roller are formed of a conductive member, and each of the above-mentioned conductive members in the thermal head is formed of a conductive member. Counter electrodes are provided on both sides of the contact portion with the conductive member in the portion corresponding to the conductive member, and based on the change in the electrical resistance value between these counter electrodes, the outer circumferential surface of the platen roller of the thermal head is 1. A thermal printer device comprising: a control device that automatically controls the spring force so that the pressing force on the spring is kept substantially constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10356886U JPS638947U (en) | 1986-07-04 | 1986-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10356886U JPS638947U (en) | 1986-07-04 | 1986-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS638947U true JPS638947U (en) | 1988-01-21 |
Family
ID=30976245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10356886U Pending JPS638947U (en) | 1986-07-04 | 1986-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS638947U (en) |
-
1986
- 1986-07-04 JP JP10356886U patent/JPS638947U/ja active Pending