JPS63201757U

JPS63201757U -

Info

Publication number: JPS63201757U
Application number: JP9196787U
Authority: JP
Priority date: 1987-06-17
Filing date: 1987-06-17
Publication date: 1988-12-26

Description

[Brief explanation of the drawing]

第１図は本考案の小型プリンタのカバーをとり
はずした状態の側面図、第２図はギアの組合せに
よるモータの駆動軸の動力伝達を示す平面図、第
３図は印字区間と非印字区間の関係を示すプーリ
及びベルトの模式図、第４図は色切換機構とリセ
ツトカムの動きを説明するタイミングチヤート及
び第５図は小型プリンタの一例を示す斜視図であ
る。１…リボンプレート、５…チエンジレバー、６
…カラーチエンジソレノイド、８…リセツトカム
、９…カムフオロア。 Fig. 1 is a side view of the compact printer of the present invention with the cover removed, Fig. 2 is a plan view showing the power transmission of the motor drive shaft by a combination of gears, and Fig. 3 is a diagram showing the printing section and non-printing section. FIG. 4 is a timing chart illustrating the movement of the color switching mechanism and reset cam, and FIG. 5 is a perspective view showing an example of a small printer. 1... Ribbon plate, 5... Change lever, 6
...Color change solenoid, 8...Reset cam, 9...Cam follower.

Claims

[Claims for Utility Model Registration] (1) In a small printer in which printing is performed by the printing head via two color ink ribbons during the reciprocating movement of a carriage mounted with a printing head and reciprocating, the first part of the ink ribbon is and a color switching mechanism that sets the second color to its respective predetermined printing position, and a reset cam that returns the printing position of the second color to the printing position of the first color, and the reset cam is connected to the cartridge. A color switching mechanism for a small-sized printer, characterized in that the color switching mechanism is operated only in a non-printing section where the printer changes direction. (2) The color switching mechanism includes a ribbon plate that is swingably attached to the frame of the printer and is always biased towards the printing positions of the first and second colors, and a ribbon plate that is attached to the printer frame and is always biased towards the printing positions of the first and second colors. One side has a first hook that holds the ribbon plate in the printing position, and a second hook that holds the ribbon plate in the second color printing position, and the other side has a solenoid that attracts the first hook and the ribbon plate. 2. A color change mechanism for a small printer according to claim 1, comprising a color change lever pivotally mounted to a frame of the printer and having a contact piece for releasing the engagement of the color change lever. (3) The reset cam pivotally attached to the printer frame acts on the cam follower integrally attached to the ribbon plate only in the non-printing section when the carriage changes direction, and releases the engagement between the second hook and the ribbon plate. A color switching mechanism for a compact printer as set forth in claims 1 and 2 of the patented utility model claims.