JPS6370839A - Copying machine - Google Patents

Abstract

PURPOSE:To copy an original in an upward state by placing the original on an original platen with its read surface up, closing a transparent plate so as to allow it to contact with an original read surface, thereafter, executing the scanning operation of the original. CONSTITUTION:The original 10 is placed with its original surface up and a luminous flux from a light source 14 is reflected by the original 10, and the reflected luminous flux forms an image on a photosensitive drum 20 through mirrors 12, 15, 16 and 3, a lens 5 and a mirror 4. A scanning unit 13 moves in parallel to a transparent plate 11, and also, a half-speed unit 17 moves at half speed in a same direction as the scanning unit 13 and scans the original surface. In such a manner, by moving a mobile enclosure 2, the replacement of the original and turning of the page can be executed. At the time of copying, the upper enclosure 2 is moved, the transparent plate 11 is made to contact to the original surface and the scan of the original surface is executed, by which copying is executed. The mirror 15 of the half-speed unit is placed in an upper enclosure 2, and the mirror 16 can be placed separately in a lower enclosure.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a copying machine.

Conventional technology Conventional copying machines place originals with the original side facing up.

Hereinafter, the above-mentioned conventional copying machine will be explained with reference to the drawings.

FIG. 2 is a schematic diagram of the optical system of a conventional copying machine.

In FIG. 2, IO is the original, 1) is a transparent flat plate, 14 is a light source, 12, 15, 16, 19 are reflective mirrors, 1 is a lens, 20 is a photosensitive drum, 13 is a light source 14 and mirror 1
2, 17 is a half-speed unit consisting of mirrors 15, 16.

The light emitted from the light source 14 is reflected by the original 10, passes through the mirrors 12, 15, and 16, is focused by a lens, is reflected by the mirror 19, and forms an image on the photosensitive drum 20.

The scanning unit 14 moves parallel to the document surface and scans the document. Half-speed unit 17 moves in the same direction as scanning unit 14 and at half the speed of the scanning unit.

Problems to be Solved by the Invention However, with the above configuration, it is necessary to place the original with the original side facing down, so when copying a book, etc., the pages may fold, and it is necessary to turn over the last page of the text in order. When copying, it is necessary to hold the book, turn the pages, and place it on the manuscript table again.

In view of the above-mentioned problems, the present invention proposes a copying machine that can copy a document in an upward position.

Means for Solving the Problems A scanning unit is provided, which is composed of a transparent flat plate that can be opened and closed and faces a document table, and a mirror and a light source that are arranged parallel to the transparent flat plate, and that moves parallel to the transparent flat plate to scan the original. A document is placed on a document table with the document surface facing up, and the document is scanned after the transparent flat plate is closed so as to be in close contact with the document surface.

In the present invention, the original is placed with the original side facing up and the original side is scanned, so when copying a book, etc., the pages can be turned over while the book is placed on the original stand, and the wooden pages can be folded. You will no longer have to worry about it.

EXAMPLE Below, the operation of an example of the present invention will be explained with reference to the drawings.

FIG. 1 is a schematic diagram of a copying machine according to an embodiment of the present invention.

1 is the document table, 10 is the document, 5 is the lens, 12°15.1
? , 3.4 is a reflecting mirror, 3a is a spring for bringing the document into close contact with the transparent flat plate 1), and 2 is an openable/closable lower casing including a scanning unit 13 and a half-speed unit 17.

FIG. 3 is a schematic external view of the embodiment of the present invention shown in FIG.

In FIG. 3, the light beam from the light source 14 is reflected by the original 10, and the reflected light beam is reflected by the mirror 12°15.1? , 3. The image is formed on the photosensitive drum 20 via the lens 5 and the mirror 4. The scanning unit 13 moves parallel to the transparent flat plate 1), and the half-speed unit 17 moves in the same direction as the scanning unit 13 at half the speed of the scanning unit to scan the document surface.

As shown in FIG. 3, by moving the movable case 2, it is possible to replace the original or turn the page. When making a copy, the lower casing 2 is moved in the direction of the arrow in FIG. 3, the transparent flat plate 1) is brought into close contact with the surface of the document, and the surface of the document is scanned and copied.

A digital copying machine can also be constructed using an image sensor in place of the photoreceptor 20 in FIG.

Further, the mirror 15 of the half-speed unit is arranged in the lower housing 2,
The mirror 16 may be placed separately in the lower housing.

More than the effects of the invention, the present invention allows the original to be placed face up, making it easy to turn the pages and replace the original when copying a book, etc., and to prevent the pages of the book from folding. There's nothing left to do.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an embodiment of the copying machine of the present invention, FIG. 2 is a schematic diagram of a conventional copying machine, and Part 3 is a schematic external view of an embodiment of the copying machine of the present invention. 1... Document stand, 2... Lower case, 13
... Scanning unit, 17 ... Half speed unit, 1) ... Transparent flat plate, 5.18 ...
・Lens, 10...Manuscript. Name of agent: Patent attorney Toshio Nakao (Figure 1, Figure 21) Figure 3

Claims (3)

[Claims] (1) A document table, an openable and closable transparent flat plate facing the document table when closed, and a mirror and a light source arranged on the opposite side of the transparent flat plate to move parallel to the transparent flat plate. A copying apparatus comprising a scanning unit for scanning an original, placing the original on a document table with the reading surface facing up, and performing a scanning operation of the original after closing a transparent flat plate so as to be in close contact with the reading surface of the original. Machine. (2) Claim (1) characterized in that reflected light from a document scanned by a scanning unit is imaged on a photoreceptor.
Copying machines listed in ). (3) A method according to claim 1, characterized in that reflected light from a document scanned by a scanning unit is imaged on an image sensor installed in a fixed frame including a document table. Copy machine.