JPH045757U

JPH045757U -

Info

Publication number: JPH045757U
Application number: JP4595990U
Authority: JP
Priority date: 1990-04-27
Filing date: 1990-04-27
Publication date: 1992-01-20

Description

[Brief explanation of drawings]

第１図ａはこの考案の実施例である着脱式イメ
ージスキヤナの被写体横幅検出装置の構造を示す
概略斜視図、第１図ｂはこの考案の実施例である
着脱式イメージスキヤナの動作を示す説明図、第
２図ａは従来の着脱式イメージスキヤナの基本構
造を示す概略図、第２図ｂは従来の着脱式イメー
ジスキヤナの動作を示す説明図、第３図は第２図
ａの着脱式イメージスキヤナの被写体検出用セン
サとして使用する各種のセンサを示す斜視図であ
る。図において、１……光源、２……イメージセン
サ、３……イメージスキヤナ部、４……ペーパー
フイーダ部、５……被写体、６……被写体検出用
センサ群、６ａ……透過形フオトカプラ、６ｂ…
…反射形フオトカプラ、６ｃ……メカニカルスイ
ツチ、７，８，９……被写体検出用センサ、１０
……範囲部である。なお、図中、同一符号は同
一、又は相当部分を示す。 Figure 1a is a schematic perspective view showing the structure of a subject width detection device for a detachable image scanner that is an embodiment of this invention, and Figure 1b is a diagram showing the operation of the detachable image scanner that is an embodiment of this invention. 2a is a schematic diagram showing the basic structure of a conventional detachable image scanner, FIG. 2b is an explanatory diagram showing the operation of a conventional detachable image scanner, and FIG. 3 is a schematic diagram showing the basic structure of a conventional detachable image scanner. FIG. 3 is a perspective view showing various sensors used as subject detection sensors of the removable image scanner of FIG. In the figure, 1... light source, 2... image sensor, 3... image scanner section, 4... paper feeder section, 5... subject, 6... subject detection sensor group, 6a... transmission type photocoupler, 6b …
... Reflective photocoupler, 6c... Mechanical switch, 7, 8, 9... Subject detection sensor, 10
...This is the range part. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

An image scanner section that has a light source and an image sensor that receives the light emitted from the light source and outputs a corresponding output by receiving the reflected light from the surface of the object, and can also be used as a handheld type, and this image scanner. In a removable image scanner equipped with a paper feeder section that can be used as a sheet-through type by incorporating a paper feeder section, the image sensor The image data read from the range part is compared with the image data read from the subject that is conveyed to the range part and the image sensor is present on the range part, and based on the difference in the image data as a result of the comparison. A subject width detection device for a removable image scanner, characterized in that the subject width detection unit is configured to determine the width of the subject.