JPH0420446U

JPH0420446U -

Info

Publication number: JPH0420446U
Application number: JP6111190U
Authority: JP
Priority date: 1990-06-08
Filing date: 1990-06-08
Publication date: 1992-02-20

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示すＰＳＵの構造
斜視図、第２図は本考案の新しい構造要素を示す
機能ブロツク図、第３図は本考案の制御部の動作
フローチヤートである。１……ヒートパイプ、２……プラテンローラ、
３，４……サーミスター、６……励振用トランジ
スタ、７……サーマルヘツド。 FIG. 1 is a structural perspective view of a PSU showing an embodiment of the present invention, FIG. 2 is a functional block diagram showing new structural elements of the present invention, and FIG. 3 is an operational flowchart of the control unit of the present invention. 1...Heat pipe, 2...Platen roller,
3, 4...thermistor, 6...excitation transistor, 7...thermal head.

補正平２．８．１５実用新案登録請求の範囲を次のように補正する
。Amendment 2.8.15 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】プラテンローラ上の感熱紙にサーマルヘツドを
接触させて印字する印字装置において、パワーサ
プライユニツト励振用トランジスタの放熱用ヒー
トパイプと、該ヒートパイプを主軸とし、該ヒー
トパイプの回りを円滑に回転し、かつ該ヒートパ
イプに熱結合されているプラテンローラと、上記
主軸の温度を検出する第１のサーミスターと、サ
ーマルヘツド自体の温度を検出する第２のサーミ
スターと、上記第１および第２のサーミスターか
らの温度情報により印字装置の動作を制御する制
御部とを備えたことを特徴とするサーマルヘツド
を用いた印字装置。[Claim for Utility Model Registration] A printing device that prints by bringing a thermal head into contact with thermal paper on a platen roller, which includes a heat pipe for heat dissipation of a transistor for excitation of a power supply unit , and a heat pipe with the heat pipe as a main axis; a platen roller that rotates smoothly around the heat pipe and is thermally coupled to the heat pipe; a first thermistor that detects the temperature of the main shaft; and a second thermistor that detects the temperature of the thermal head itself. 1. A printing device using a thermal head, comprising: a control section that controls the operation of the printing device based on temperature information from the first and second thermistors.

Claims

[Scope of utility model registration request]

A printing device that prints by bringing a thermal head into contact with thermal paper on a platen roller includes a heat dissipation heat pipe for a print excitation transistor, a heat pipe that rotates smoothly around the heat pipe with the heat pipe as the main axis, and a a platen roller thermally coupled to the heat pipe; a first thermistor for detecting the temperature of the main shaft; a second thermistor for detecting the temperature of the thermal head itself;
and a control unit that controls the operation of the printing device based on temperature information from the second thermistor.