JPH0213353U

JPH0213353U -

Info

Publication number: JPH0213353U
Application number: JP9071288U
Authority: JP
Priority date: 1988-07-08
Filing date: 1988-07-08
Publication date: 1990-01-26

Description

[Brief explanation of the drawing]

第１図は、本考案の一実施例の左側面（断面）
図である。第２図は、第１図の実施例の正面（断
面）図である。第３図は、第１図の実施例の原稿
蓋を開いた状態を示す左側面（断面）図である。１……ガラス台、２……原稿蓋、３……原稿、
４……ヒンジ、５……光ユニツト、６……アクチ
ユエータ、７……センサ、８……ガラス台のスリ
ツト、９……原稿蓋の溝。 Figure 1 shows the left side (cross section) of an embodiment of the present invention.
It is a diagram. FIG. 2 is a front (cross-sectional) view of the embodiment of FIG. FIG. 3 is a left side (cross-sectional) view showing the embodiment shown in FIG. 1 in a state where the document cover is opened. 1...Glass stand, 2...Document lid, 3...Document,
4... Hinge, 5... Light unit, 6... Actuator, 7... Sensor, 8... Slit in glass stand, 9... Groove in document lid.

Claims

[Scope of utility model registration request]

In a document reading device that reads a document by moving an optical unit with respect to a stationary document, a glass table having a slit in the sub-scanning direction of the document is provided for placing the document, and a glass table for pressing the document against the glass table. The document cover includes a document cover provided with a groove at a position opposite to the slit of the glass stand, and a sensor that is attached to the optical unit and supports a document detection movable section that detects the length of the document in the sub-scanning direction. As the document moves, a part of the document detection movable part comes off the paper surface of the document and enters the groove provided in the document cover, thereby activating the sensor and detecting the sub-page of the document placed on the glass stand. A document detection mechanism configured to detect a length in a scanning direction.