JPH0398058U

JPH0398058U -

Info

Publication number: JPH0398058U
Application number: JP554790U
Authority: JP
Priority date: 1990-01-23
Filing date: 1990-01-23
Publication date: 1991-10-09

Description

[Brief explanation of the drawing]

第１図は、本考案の第一の実施例を示す斜視図
、第２図は、同左側面図、第３図は、第一の実施
例における制御部のブロツク図、第４図は、第一
の実施例における動作を説明するフローチヤート
、第５図は、同特性図、第６図は、第一の実施例
における状態説明図、第７図は、本考案の第二の
実施例を示す斜視図、第８図は、従来例を示す左
側面図、第９図は、同右側面図、第１０図は、同
平面図、第１１図は、従来例における制御部のブ
ロツク図である。１……印字ヘツド、２……キヤリツジ、４……
プラテン、７……ガイドシヤフト、１１ａ，１１
ｂ……スプリング、１２ａ，１２ｂ……スライド
アーム、１５……切欠部、２２……ステツピング
モータ、２３……カム、２６……カムレバー、２
８……カムローラ、３０……リンク棒、３３……
デテントアーム、３５……デテントローラ、Ｐ…
…用紙。 FIG. 1 is a perspective view showing a first embodiment of the present invention, FIG. 2 is a left side view of the same, FIG. 3 is a block diagram of a control section in the first embodiment, and FIG. FIG. 5 is a flowchart explaining the operation in the first embodiment, FIG. 5 is a characteristic diagram, FIG. 6 is a state explanatory diagram in the first embodiment, and FIG. 7 is a diagram showing the second embodiment of the present invention. 8 is a left side view of the conventional example, FIG. 9 is a right side view of the same, FIG. 10 is a plan view of the same, and FIG. 11 is a block diagram of the control section in the conventional example. be. 1...Print head, 2...Carriage, 4...
Platen, 7... Guide shaft, 11a, 11
b... Spring, 12a, 12b... Slide arm, 15... Notch, 22... Stepping motor, 23... Cam, 26... Cam lever, 2
8...Cam roller, 30...Link rod, 33...
Detent arm, 35... Detent roller, P...
...Paper.

Claims

[Scope of Claim for Utility Model Registration] Provided in a printer that prints on paper attached to the platen by moving a carriage equipped with a printing head in the axial direction of the platen, the carriage is moved in a direction perpendicular to the axis of the platen. A mechanism that automatically adjusts the printing head gap to an optimum value by controlling the stepping motor to move the printing head once the printing head contacts the paper, and then moving the printing head to an optimum value, means for locking the printing head at the initial position where the print head is separated from the paper; means for releasing the lock at the initial position by rotation of the stepping motor; and constantly urging the carriage toward the platen. An automatic print head gap adjustment mechanism for a printer, comprising means for bringing the print head into contact with paper when the lock at the initial position is released.