JPH028954U

JPH028954U -

Info

Publication number: JPH028954U
Application number: JP8671788U
Authority: JP
Priority date: 1988-06-30
Filing date: 1988-06-30
Publication date: 1990-01-19

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示すサーマルプ
リンタを熱転写方式で使用時の概略構成図、第２
図は同じくそのダイレクトサーマル方式で使用時
の概略構成図、第３図は熱転写方式とダイレクト
サーマル方式での最適エネルギの相違を示す線図
、第４図は第１図の実施例におけるインクリボン
巻取機構を示す概略構成図である。１……本体フレーム、２……サイドフレーム、
３……サーマルヘツド、４……プラテンローラ、
５，６……ピンチローラ、７……フラツプ、７ａ
……固定片、７ｂ……可動片、８……回動軸、９
……スプリング、１０……供給軸、１１……巻取
軸、１２ａ，１２ｂ……用紙ガイド板、１３……
補強板、１４……近接スイツチ、１４ａ……アク
チユエータ、１５……ガイドローラ、１６……イ
ンクリボン、１７……用紙（普通紙）、１８……
感熱紙。 Figure 1 is a schematic configuration diagram of a thermal printer used in a thermal transfer method, showing one embodiment of this invention.
The figure is also a schematic configuration diagram when using the direct thermal method, FIG. 3 is a diagram showing the difference in optimal energy between the thermal transfer method and the direct thermal method, and FIG. 4 is the ink ribbon winding in the embodiment of FIG. 1. FIG. 3 is a schematic configuration diagram showing a removing mechanism. 1... Body frame, 2... Side frame,
3... Thermal head, 4... Platen roller,
5, 6...Pinch roller, 7...Flap, 7a
...Fixed piece, 7b...Movable piece, 8...Rotation shaft, 9
... Spring, 10 ... Supply shaft, 11 ... Winding shaft, 12a, 12b ... Paper guide plate, 13 ...
Reinforcement plate, 14... Proximity switch, 14a... Actuator, 15... Guide roller, 16... Ink ribbon, 17... Paper (plain paper), 18...
Thermal paper.

Claims

[Scope of Claim for Utility Model Registration] Winding up the ink ribbon after transfer in a thermal printer that can be used with either a thermal transfer method using an ink ribbon or a direct thermal method using thermal paper using a common thermal head. A hinge-shaped flap that serves as a guide during printing is biased to rotate in one direction by a spring, and when there is no ink ribbon, the ink ribbon comes into contact with the flap that rotates due to the biasing force and is turned on. When the tension is on, the flap is rotated against the force, so that a proximity switch is provided, which separates the flap and turns it off. When the proximity switch is on, the thermal head is energized for a longer time. A thermal printer characterized in that, when the thermal head is off, the time during which electricity is applied to the thermal head is shortened.