JPS60109951U

JPS60109951U - Printer rotation detection mechanism

Info

Publication number: JPS60109951U
Application number: JP20514183U
Authority: JP
Inventors: 小貫　輝男
Original assignee: セイコーインスツルメンツ株式会社
Priority date: 1983-12-27
Filing date: 1983-12-27
Publication date: 1985-07-25
Also published as: JPH0140690Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本実施例の平面図である。第２図は回転検出及
び、ホーム位置検出部の断面図である。第３図は回転体の外観斜視図である。第４図は本実施例
の動作図とタイミングチャートである。FIG. 1 is a plan view of this embodiment. FIG. 2 is a sectional view of the rotation detection and home position detection section. FIG. 3 is an external perspective view of the rotating body. FIG. 4 is an operation diagram and a timing chart of this embodiment.

Claims

[Scope of utility model registration request]

(1) In a printer in which a head mounted on a sliding head carrier uses a motor as a drive source and prints while receiving a synchronization signal that correlates with the rotation of the motor, the motor is used as the drive source as a means for generating the synchronization signal. By fixing the photosensor at a position that responds to the rotating shaft, and forming equally divided and alternating surfaces with different reflection efficiencies on the outer peripheral surface of the photosensor reaction part of the rotating shaft, the difference in reflection efficiency can be reduced to a sine. A rotation detection mechanism for a printer characterized in that it is extracted as a wave output signal.

(2) Utility Model Registration Scope of Claims (1) In the printer rotation detection mechanism described in claim (1), when the head carrier is at the home position, a slow closing member is provided between the front sensor and the photo sensor reaction part of the rotating shaft. The printer's rotation detection mechanism makes it possible to detect the home position of the head carrier by inserting the head carrier and stopping the generation of the synchronization signal.

(3) Scope of Utility Model Registration Claims (1) In the printer rotation detection mechanism as set forth in claim (1), 1. Photosensor reaction part/
In this method, a rotating body is fixedly inserted and rotated by applying high reflection treatment and forming equally divided teeth on the outer periphery, and at the same time removing the bottom part of the teeth in two predetermined ranges in the sliding direction.
A rotation detection mechanism for a printer, characterized in that it is constituted by a rotary shaft having a head feeding function and having a portion related to the tooth bottom removed portion of the rotating body subjected to a low-reflection treatment.

(4) In the rotation detection mechanism of the printer described in claim (2) of the utility model registration, the slow-closing member inserted between the photosensor and the reaction part of the photosensor is placed either in the front or back in the sliding direction of the head. A printer rotation detection mechanism characterized by a head carrier provided with a protrusion.