JPS6193261U

JPS6193261U -

Info

Publication number: JPS6193261U
Application number: JP17656884U
Authority: JP
Priority date: 1984-11-22
Filing date: 1984-11-22
Publication date: 1986-06-16

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例によるスリツトデイ
スクの正面図、第２図は前記スリツトデイスクを
駆動用モータに取付けた状態の要部平面図、第３
図は本実施例により印字位置を検出する主要回路
のブロツク図、第４図は本実施例によるホトセン
サの出力信号による印字タイミングおよび印字例
を示すフローチヤート、第５図は本実施例による
駆動用モータの微回転制御により印字位置を検出
する主要回路のブロツク図、第６図は前記駆動用
モータの微回転制御のための各出力信号および印
字例を示すフローチヤート、第７図は従来の印字
位置制御装置を有したシリアルプリンタの要部平
面図、第８図はそのスリツトデイスクの正面図で
ある。１…プラテン、６…印字ヘツド、８…駆動用モ
ータ、１４…スリツトデイスク、１５…第１のス
リツト、１６…第２のスリツト、１７…第１のホ
トセンサ、１８…第２のホトセンサ。 FIG. 1 is a front view of a slit disk according to an embodiment of the present invention, FIG. 2 is a plan view of essential parts of the slit disk attached to a drive motor, and FIG.
The figure is a block diagram of the main circuit for detecting the print position according to this embodiment, FIG. 4 is a flowchart showing the printing timing and printing example based on the output signal of the photosensor according to this embodiment, and FIG. 5 is the drive circuit according to this embodiment. A block diagram of the main circuit that detects the print position by controlling the fine rotation of the motor, FIG. 6 is a flowchart showing output signals and printing examples for controlling the fine rotation of the drive motor, and FIG. 7 is a diagram of conventional printing. FIG. 8 is a plan view of a main part of a serial printer having a position control device, and a front view of a slit disk thereof. DESCRIPTION OF SYMBOLS 1...Platen, 6...Print head, 8...Drive motor, 14...Slit disk, 15...First slit, 16...Second slit, 17...First photosensor, 18...Second photosensor.

Claims

[Claims for Utility Model Registration] 1. A printing head facing the platen with a predetermined gap, a driving means for moving the printing head parallel to the platen, and a plurality of slits on the same circumference. A printing position control device comprising a slit disk arranged at equal intervals and controlling the movement of the printing head according to the spacing of the slits, the slit disk having a row of slits arranged at equal intervals on the same circumference. A printing position control device characterized in that a plurality of slit rows are set, the slit intervals of each slit row are different for each row, and the slit interval is set to an integral multiple of the amount by which the print head moves by one. 2. Utility Model Registration Claim 1: The printing position control device according to claim 1, wherein the space between the slits in each of the slit rows is set to 1n, which is the amount by which the printing head moves by one character. 3. Utility Model Registration The printing position control device according to claim 1, characterized in that the spacing between the slits in each of the slit rows is set to 1n, which is the amount by which the printing head moves by one dot.