JPS60128774A - Picture reader - Google Patents

Abstract

PURPOSE:To confirm easily the relative position between a reading area and the original contents by providing the reading part on the machine upper face by protruding, and by providing a scanning mechanism so that the reading part will scan the upper side of the original which is mounted on the machine upper face by the up-face. CONSTITUTION:A guide line 12 is provided at the upper face of an original placing plate 2, and the guide line becomes the guide when an original 11 is mounted. The original 11 is mounted on the upper face of the original placing plate 2 by the up-face, and a reading scanner part 1 slides on the upper side of the original 11 like an arrow by driving systems 3 and 4. According to the siliding, a reading position A also slides by the same distance, and a sensor 8 of the scanner part 1 is irradiated by an optical source 7. Then, the sensor 8 continues to see the original which is reflected totally at a constant angle, and reads the original.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an image reading device, and more particularly, the present invention relates to an image reading device that reads an image from a document, or a part thereof that has a scanning mechanism and that reads an image from a document. The present invention relates to an image reading device having an input function.

Prior Art In most of the image reading devices of conventional copying machines, a part of the reading scanner is located below the platen surface on which the original is placed, so the original must be placed face down. For this reason, the operator must give sufficient consideration to whether or not the original on the platen actually contains the content that should be read, and if only a portion of the original is to be read from a large original, the operator must It is extremely difficult to know the position of the document content, that is, to check whether the part you want to read is within the reading area.

OBJECTS OF THE INVENTION Accordingly, an object of the present invention is to provide an image reading device that eliminates the above-mentioned drawbacks of conventional image reading devices and allows easy confirmation of the relative position of the reading area and document content. .

Structure of the Invention In order to achieve the above object, an image reading device according to the present invention is provided with a reading section protruding from the top surface of the machine, and an upper side of a document placed face-up on the top surface of the machine. A scanning mechanism is provided so that the images can be scanned.

EXAMPLES Hereinafter, the present invention will be described in detail while explaining examples shown in the accompanying drawings.

FIG. 1 is a plan view showing an embodiment of an image reading device of the present invention, FIG. 2 is a right side view thereof, and FIG. 3 is a front view thereof. 1 is a part of the reading scanner, and 2 is a document table. The tip of the leg 1α on one side of the reading scanner part 1 is attached to the document table 2.
A ball screw nut (not shown) that is inserted into the document table 2 from a long slide provided on the side wall and fixed to the tip of the leg 1α is screwed with a ball screw 3 disposed inside the document table 2. The ball screw 3 is connected to a motor 4. On the other hand, the tip of the other leg Ib of the reading scanner part 1 enters into the document table 2 through the elongated slide hole 5 provided on the other side wall of the document table 2, and the tip 1C of the leg 1b has a sliding element such as a ball bearing, and is connected to the scanner guide shaft 6. The sliding elongated hole 5 may be configured in the form of an elongated groove so that the tip of the leg 1b slides within the elongated groove.

The reading scanner part 1 incorporates a light source 7, such as a dinner lamp, and a reading sensor 8, such as an amorphous silicon sensor, and is driven and guided by the aforementioned motor 4, ball screw 3, and scanner guide shaft 6. Ru.

In addition, since the document 1 must be placed in a position directly facing the reading area of the scanner, a guideline 12 (which may be simply printed or grooved lines) or a document guide such as a stepped document is placed on the top of the document table 2. It is convenient to provide this and use it as a guide when placing the original 11.

This guideline +2 etc. is highly effective even when partial reading is performed because the document 11 is facing up. Reference numeral 9 is a document cover glass, which is used to prevent the document 11 from floating up, and has a handle 10 at its tip for operational convenience.
is installed. Also, the embossment of manuscript 11)
To prevent UJ, the upper surface of the document table 2 may be charged with static electricity.

In the above configuration, the original 11 is placed on the upper surface of the original table 2.
When the image reading device is activated, the scanner part 1 is read by the drive system 3.4.
Slide above 1 in the direction of the arrow. As the reading scanner part 1 slides, the reading position A also slides by the same distance, and the amorphous silicon self-sensor 8 built in the reading scanner part 1 detects the original (reading) which is irradiated by the light source 7 and totally reflected. Keep looking at the document surface at position A at a constant angle and read it.

Effects of the Invention As described above, the image reading device according to the present invention has a reading section provided on the top surface of the machine, and is placed face up on the top surface of the machine, and the reading section scans the top of 9Pf, g4. With this configuration, the relative position of the reading area and the document content can be easily confirmed, and the document placement operation is extremely simple. Furthermore, by arranging the reading section at the top of the machine, it is possible to downsize the machine.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the image reading device of the present invention, FIG. 2 is a right side view of FIG. 1, and FIG. 3 is a front view of FIG. 1. 1 is part of the reading scanner, 2 is the document table, 3 is the ball screw,
4 is a motor, 7 is a light source, 8 is a reading sensor, 11 is a document, and A is a reading position. Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Masaaki Yonehara Patent Attorney Tadashi Hamamoto

Claims (1)

[Claims] In an image input device where a reading section scans, the reading section is provided protruding above the top surface of the machine,
An image reading device comprising a scanning mechanism so that the reading section scans the upper side of a document placed face-up.