JPH0315159U

JPH0315159U -

Info

Publication number: JPH0315159U
Application number: JP7452789U
Authority: JP
Priority date: 1989-06-26
Filing date: 1989-06-26
Publication date: 1991-02-15
Anticipated expiration: 2004-06-26
Also published as: JPH0750218Y2

Description

[Brief explanation of drawings]

第１図ないし第４図は本考案に係る熱転写プリ
ンタの第１実施例を示しものであり、第１図はキ
ヤリツジの背部からの斜視図、第２図は第１図の
キヤリツジにリボンカセツトを搭載した要部の平
面図、第３図は第１図および第２図の一部を破断
した斜視図、第４図は第１実施例の作用を示す縦
断面側面図、第５図および第６図は本考案の第２
実施例を示すものであり、第５図はリボンカセツ
トの平面図、第６図は板ばねの撓んだ状態を示す
斜視図、第７図は第６図の板ばねの変形例を示す
斜視図、第８図は一般的な熱転写プリンタの斜視
図、第９図はプラテンにサーマルヘツドを圧接し
た状態を示す側面図、第１０図は回動自在なプラ
テンの側面図、第１１図はインクリボンの張力の
不均一を示す側面図である。１…本体フレーム、２…プラテン、４…キヤリ
ツジ、５…サーマルヘツド、１１…巻取りボビン
、１３…引出しボビン、１６…リボンカセツト、
１７…巻取りコア、２０…従動プーリ、２１…支
軸、２４…コイルばね、２５…プーリ本体、２６
…板ばね、２８…開口、Ｐ…用紙、Ｉ…インクリ
ボン。 1 to 4 show a first embodiment of the thermal transfer printer according to the present invention, in which FIG. 1 is a perspective view from the back of the carriage, and FIG. 2 is a ribbon cassette attached to the carriage of FIG. 1. 3 is a partially cutaway perspective view of FIGS. 1 and 2, FIG. 4 is a vertical cross-sectional side view showing the operation of the first embodiment, and FIGS. Figure 6 is the second part of this invention.
Fig. 5 is a plan view of the ribbon cassette, Fig. 6 is a perspective view showing a bent state of the leaf spring, and Fig. 7 is a perspective view showing a modification of the leaf spring of Fig. 6. Figure 8 is a perspective view of a general thermal transfer printer, Figure 9 is a side view showing the state in which the thermal head is pressed against the platen, Figure 10 is a side view of the rotatable platen, and Figure 11 is an ink printer. FIG. 3 is a side view showing non-uniform tension in the ribbon. DESCRIPTION OF SYMBOLS 1... Main body frame, 2... Platen, 4... Carriage, 5... Thermal head, 11... Winding bobbin, 13... Drawer bobbin, 16... Ribbon cassette,
17... Winding core, 20... Driven pulley, 21... Support shaft, 24... Coil spring, 25... Pulley main body, 26
...Plate spring, 28...Opening, P...Paper, I...Ink ribbon.

Claims

[Scope of utility model registration request]

In a thermal transfer printer, a cartridge carrying a ribbon cassette containing an ink ribbon and a thermal head is moved along a platen, and the thermal head is pressed against the platen through the ink ribbon and paper to perform printing. 1. A thermal transfer printer, characterized in that an elastic member is disposed in pressure contact with almost the entire area of the ink ribbon and can change the amount of deflection in the same direction in response to the magnitude of the tension of the ink ribbon in the same direction.