JPH0215369U

JPH0215369U -

Info

Publication number: JPH0215369U
Application number: JP9390388U
Authority: JP
Priority date: 1988-07-15
Filing date: 1988-07-15
Publication date: 1990-01-31

Description

[Brief explanation of drawings]

第１図は本考案の一実施例における感熱転写型
プリンターの駆動系を表わした断面説明図、第２
図は第１図に表わされたスプールの概略構成を表
わした説明的分解斜視図、第３図はスプールの軸
振れ偏心作用を表わした部分断面説明図、第４図
および第５図は本考案の他の実施例における感熱
転写型プリンターの駆動系を表わした部分断面説
明図および側面説明図、第６図は従来の感熱転写
型プリンターの駆動系を表わした断面説明図、第
７図ａ，ｂ，ｃはスプールの巻き取り不良の態用
を表わした説明図、第８図ａ，ｂはインクシート
のたるみ発生状態を表わした説明図である。１１…インクシート、１２…シート送り出しス
プール、１３，４２…シート巻き取りスプール、
１６，１７，４６，４７…回転軸、２６，５６…
キー、２３，２８，５２…連結板。 FIG. 1 is a cross-sectional explanatory diagram showing the drive system of a thermal transfer printer according to an embodiment of the present invention, and FIG.
The figure is an explanatory exploded perspective view showing the schematic structure of the spool shown in Fig. 1, Fig. 3 is a partial cross-sectional explanatory view showing the eccentric action of the spool's shaft runout, and Figs. 4 and 5 are the main parts. FIG. 6 is a partial cross-sectional explanatory view and side explanatory view showing the drive system of a thermal transfer printer in another embodiment of the invention; FIG. 6 is a cross-sectional explanatory view showing the drive system of a conventional thermal transfer printer; FIG. 7a , b, and c are explanatory diagrams showing a situation where the spool is poorly wound, and FIGS. 8a and 8b are explanatory diagrams showing a state in which slack occurs in the ink sheet. 11... Ink sheet, 12... Sheet sending spool, 13, 42... Sheet winding spool,
16, 17, 46, 47... Rotating shaft, 26, 56...
Key, 23, 28, 52...Connection plate.

Claims

[Scope of utility model registration request]

While winding or unwinding an ink sheet that can be printed multiple times between a pair of spools made of a roll-shaped body having a constant width, the ink on the ink sheet is heated by a thermal head that generates a thermal pattern according to image recording information. The above-mentioned pair of spools are configured so that the printing and recording operation can be repeated multiple times by selectively transferring the images, and each of the pair of spools has a configuration in which the axial center of each spool is pivotally supported by a rotating shaft. In the thermal transfer printer, at least one of the pair of spools is connected to a rotating shaft at a substantially central portion in the width direction of the spool, and the spool is capable of eccentric eccentricity about the connecting portion. A thermal transfer printer characterized by being installed in.