JPS5821153U

JPS5821153U - Optical system drive device for copying machines, etc.

Info

Publication number: JPS5821153U
Application number: JP11540181U
Authority: JP
Inventors: 谷本　康文; 渡辺　順児; 十河　敏行
Original assignee: 株式会社東芝
Priority date: 1981-08-03
Filing date: 1981-08-03
Publication date: 1983-02-09
Also published as: JPH0310505Y2

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図から第１０図はこの考案の一実施例を示すもので
、第１図は原稿台固定式の電子複写機を概略的に示す構
成図、第２図は光学系の駆動機構を概略的に示す斜視図
、第３図はパルスモータの構成を示す図、第４図はパル
スモータの各コイルの励磁状態を示すタイミングチャー
ト、第５図は電子複写機の電気回路の要部を示す図、第
６図はＲＯＭの記憶例を示す図、第７図は光学系の初期
位置設定時の要部の状態などを示す図、第８図は光学系
の初期位置設定時の動作を説明するためのフローチャー
ト、第９図ａ、　　ｂは光学系の複写動作時の励磁切換
タイミングパルスと光学系の移動速度との関係を示す図
、第１０図は光学系の読取走査時のフローチャートであ
り、第１１図および第１３図は光学系を支持するキャリ
ッジの変形例を示す正面図、第１２図は第１１図に示す
キャリッジの上面図である。２・・・原稿台、３・・・露光ランプ、４，５・・・ミ
ラー、６・・・光学系、１０・・・感光体ドラム（画像
保持媒体）、２２．２２．、　２２□、　　２３．、　
２３２・・・キャリッジ、２４１．２４□・・・ガイド
レール、２５・・・パルスモータ、２５．．２５゜、　
　２５．、　２５．・・・コイル、２５ａ・・・永久磁
石、２６・・・減速機構、２７・・・ワイヤドラム、２
８・・・駆動ワイヤ、２９・・・滑車、３０・・・アイ
ドラ、３２・・・検出タブ（検出体）、３３・・・検出
器、３４・・・制止器、４２・・・ＲＯＭ。４３・・・タイマ、４５・・・ドライバ、４６・・・ス
イッチ、４７・・・マイクロプロセッサ。 ”ゴ“′″′　綾土信号ｌ「憾第７図酌−１櫓１艷ａｌ　　　　　　　　　ｌ　１ ′　二：ｆ；πと二は゛ｔｑ＃条の第６図第８図０口りみFigures 1 to 10 show an embodiment of this invention, with Figure 1 being a schematic configuration diagram of an electronic copying machine with a fixed document table, and Figure 2 being a schematic diagram of the drive mechanism of the optical system. 3 is a diagram showing the configuration of the pulse motor, FIG. 4 is a timing chart showing the excitation state of each coil of the pulse motor, and FIG. 5 is a main part of the electric circuit of the electronic copying machine. Figure 6 is a diagram showing an example of storage in the ROM, Figure 7 is a diagram showing the state of main parts when setting the initial position of the optical system, and Figure 8 explains the operation when setting the initial position of the optical system. 9a and 9b are diagrams showing the relationship between the excitation switching timing pulse and the moving speed of the optical system during the copying operation of the optical system, and FIG. 10 is a flowchart during the reading scan of the optical system. , FIG. 11 and FIG. 13 are front views showing modified examples of the carriage that supports the optical system, and FIG. 12 is a top view of the carriage shown in FIG. 11. 2... Original table, 3... Exposure lamp, 4, 5... Mirror, 6... Optical system, 10... Photosensitive drum (image holding medium), 22.22. , 22□, 23. ,
232... Carriage, 241. 24□... Guide rail, 25... Pulse motor, 25. ．． 25°,
25. , 25. ...Coil, 25a...Permanent magnet, 26...Deceleration mechanism, 27...Wire drum, 2
8... Drive wire, 29... Pulley, 30... Idler, 32... Detection tab (detection body), 33... Detector, 34... Restraint device, 42... ROM. 43...Timer, 45...Driver, 46...Switch, 47...Microprocessor. ``Go''''' Ayato Signal ``Regrettably Figure 7 Cup - 1 Tower 1 Boat al l 1 ' 2: f; π and 2 are ゛tq# article Figure 6 Figure 8

Claims

[Scope of utility model registration request]

In a copying machine or the like having a reciprocating optical system for exposing and scanning a document on a document table, there is provided a drive mechanism for reciprocating the optical system, and a drive for reciprocating the optical system with respect to the drive mechanism. a pulse motor for copying; a detection object that moves with the movement of the optical system; a detector disposed on the drive mechanism to detect the presence or absence of the detection object; this detector and one side end of the drive mechanism. and a stopper that sets the optical system to the initial position by stopping the detection body; and a stopper that lowers the excitation current of the pulse motor in response to a detection signal from the detector; An optical system drive device for a copying machine or the like, comprising means for operating the pulse motor by a predetermined number of steps greater than the number of pulses corresponding to the distance between the device and the stopper.