JPH0331958U

JPH0331958U -

Info

Publication number: JPH0331958U
Application number: JP9131189U
Authority: JP
Priority date: 1989-08-02
Filing date: 1989-08-02
Publication date: 1991-03-28

Description

[Brief explanation of drawings]

第１図および第２図は本考案による印字装置の
用紙送り装置の第１実施例を示すもので、第１図
は装置の用部を説明する説明図、第２図は第１図
の部分を示す斜視図、第３図と第４図はそれぞれ
従来方法を説明する説明図である。１……印字用紙、２……用紙ローラ、４……駆
動ローラ、７……インクリボン、８……サーマル
ヘツド（印字ヘツド）、１７……スリツプ機構、
１７ａ……歯車、１７ｂ……一方クラツチ、１７
ｃ……ボビン、１７ｄ……スプリング、１８……
第１ガイドローラ、１９……第２ガイドローラ、
Ｔ……張力。 1 and 2 show a first embodiment of a paper feeding device for a printing device according to the present invention. FIG. 1 is an explanatory diagram explaining the functions of the device, and FIG. The perspective view shown, FIG. 3, and FIG. 4 are explanatory diagrams for explaining the conventional method, respectively. 1... Print paper, 2... Paper roller, 4... Drive roller, 7... Ink ribbon, 8... Thermal head (print head), 17... Slip mechanism,
17a...gear, 17b...one clutch, 17
c...Bobbin, 17d...Spring, 18...
1st guide roller, 19... 2nd guide roller,
T...Tension.

Claims

[Claims for Utility Model Registration] (1) By rotating the drive roller in the forward direction, the printing paper pulled out from the paper roller is moved from the paper feed source side to the paper feed destination side, and the drive roller is rotated in the forward direction. The printing paper is moved back and forth with respect to the printing head multiple times by rotating alternately in the opposite direction, and the driving roller is temporarily stopped during this forward movement, so that the surface of the driving roller is In a printing device that performs printing multiple times by pressing the printing head via an ink ribbon onto the printing paper located on the printing paper, the printing paper is placed on the paper feeding source side and the paper feeding destination side of the driving roller. first and second guide rollers are provided that press and move the printing paper in a predetermined direction by rotation of the drive roller, and the paper roller applies tension in the opposite direction to the printing paper when the drive roller rotates in the forward direction. A paper feed device for a printing device, characterized in that it is provided with a slip mechanism for applying a slip. (2) A slip mechanism consists of a gear that receives rotational force from a rotary drive mechanism, and when this gear rotates in the forward direction, it slips and does not transmit the power to the paper roller, and when the gear rotates in the opposite direction. 2. A paper feeding device for a printing device according to claim 1, wherein the paper feeding device for a printing device mainly comprises a one-way clutch that transmits power only when the paper roller is rotated in the opposite direction.