JPH0370941U

JPH0370941U -

Info

Publication number: JPH0370941U
Application number: JP13252889U
Authority: JP
Priority date: 1989-11-16
Filing date: 1989-11-16
Publication date: 1991-07-17

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の機構を示す側面図
、第２図は同実施例の動作状態を示す側面図、第
３図は同じく動作状態を示す側面図、第４図は実
施例の動作フローチヤート、第５図は従来の構造
を示す概略側面図、第６図は従来のプラテン開閉
動作を示す側面図である。２……印字ヘツド、７……プラテン、７ａ……
支点、９……ポスト、１２……下部印字ヘツド、
１５……移動体、１５ａ……プツシユバー、１６
……退避レバー、１７……リセツトレバー、１８
……検知レバー、１８ｂ……当接部、１８ｂ……
テーバ部、１９……ロツクレバー、１９ａ……ス
タツド、１９ｂ……フツク部、２０……アーム、
２０ｂ……ポスト、２１……開閉レバー、２１ｂ
……係合部、２１ｃ……支点、２２……プラテン
検知レバー、ＳＰ１〜ＳＰ３……スプリング。 Fig. 1 is a side view showing the mechanism of an embodiment of the present invention, Fig. 2 is a side view showing the operating state of the same embodiment, Fig. 3 is a side view showing the same operating state, and Fig. 4 is an embodiment. FIG. 5 is a schematic side view showing the conventional structure, and FIG. 6 is a side view showing the conventional platen opening/closing operation. 2... Print head, 7... Platen, 7a...
Fulcrum, 9...Post, 12...Lower print head,
15...Moving object, 15a...Pushyuber, 16
... Evacuation lever, 17 ... Reset lever, 18
...Detection lever, 18b...Contact part, 18b...
Taper part, 19... Lock lever, 19a... Stud, 19b... Hook part, 20... Arm,
20b...Post, 21...Opening/closing lever, 21b
...Engaging portion, 21c...Fully point, 22...Platen detection lever, SP1 to SP3...Spring.

Claims

[Claims for Utility Model Registration] A print head that performs printing by moving parallel to the print medium and is movably supported in a position where it is spaced apart from the platen at right angles, and a tip of the print head. A printer comprising: a platen that is disposed facing each other and is supported so as to be openable and closable so as to rotate upward by a fulcrum to expose a lower platen mechanism for printing processing provided below the platen; a print head detection mechanism that detects when the print head has moved to the retracted position; a locking mechanism that locks the print head in the retracted position in conjunction with this detection mechanism; When the locking mechanism is in a state where the printing head is locked, a platen holding mechanism that holds the platen so that it can be opened and closed, and an open/closed state of the platen are detected, and based on the detection result, the platen holding mechanism can be operated. and a platen detection mechanism that is connected to the locking mechanism of the printing head and capable of releasing the locked state of the locking mechanism, and the platen detection mechanism detects that the platen is closed. To enable the printing head to be moved by releasing the locking means of the printing head only when the printing head has been removed, and to enable the opening/closing operation of the platen only when the printing head is detected to be in the retracted position by the printing head detection mechanism. A printer featuring