JPH0347544U

JPH0347544U -

Info

Publication number: JPH0347544U
Application number: JP10804289U
Authority: JP
Priority date: 1989-09-14
Filing date: 1989-09-14
Publication date: 1991-05-02

Description

[Brief explanation of drawings]

第１図は本考案の検知手段を用いる画像読取り
装置の側面図、第２図は本考案の原稿サイズ検知
装置の構成を示す斜視図、第３図はその平面図、
第４図および第５図はそれぞれ走査装置による走
査の開始時と、終了時とにおける検知手段の位置
を示す説明図、第６図ないし第８図はそれぞれ本
考案の装置による原稿の検知の作用を示す説明図
であり、第９図はプラテンに対する検知手段の移
動の軌跡を示す説明図である。図中の符号、１……フルレートキヤリツジ、２
……ガイドロツド、５……プラテン、６……プラ
テンカバー、１０……検知手段、１１……発光部
材、１２……受光部材、１３……センサーブラケ
ツト、１４……ピン、１５……スライダー、１７
……ガイド部材、１８……溝。 FIG. 1 is a side view of an image reading device using the detection means of the present invention, FIG. 2 is a perspective view showing the configuration of the document size detection device of the present invention, and FIG. 3 is a plan view thereof.
4 and 5 are explanatory diagrams showing the position of the detection means at the start and end of scanning by the scanning device, respectively, and FIGS. 6 to 8 respectively show the operation of detecting a document by the device of the present invention. FIG. 9 is an explanatory diagram showing the locus of movement of the detection means with respect to the platen. Symbols in the diagram: 1...Full rate carriage, 2
... Guide rod, 5 ... Platen, 6 ... Platen cover, 10 ... Detection means, 11 ... Light emitting member, 12 ... Light receiving member, 13 ... Sensor bracket, 14 ... Pin, 15 ... Slider, 17
...Guide member, 18...Groove.

Claims

[Claim for Utility Model Registration] A scanning device that scans an image of a document by moving along the lower surface of a platen is provided with document size detection means, and the document is pre-scanned using the document scanning device. In the apparatus, one of the document size detecting means is constituted by a sensor member, and the detecting means is configured to follow the movement of the document scanning device in the scanning direction and the return direction and pass through different positions. The device is configured to be able to move the supporting member of the platen, and by setting measurement points at specific positions on the platen for performing detection operations, and inputting the detection information at each measurement point into the control device, the document can be detected. A document size detection device characterized in that it is configured to be capable of determining a size.