JPS58141075A - Picture reader - Google Patents

Abstract

PURPOSE:To set an original at a prescribed position easily regardless of the kind of the original by knowing the condition of the original on a reader side through a transparent plate. CONSTITUTION:On a platen 6, an index 7 for rough original positioning is provided. At the inner side of the original platen a hinge 11 is provided and consequently, the picture reader is rotatable to the position where original glass 8 abuts on an original surface and to the position where it moves away, so the platen is opened and closed freely with the reader 10. The reader 10 has a reading means 12 on the opposite of the original glass 8 to an original. A housing 10' is provided with a peek window 13 made of a transparent material to see the original 2 through the original glass 8. On the original glass 8, a size display 14 and the index 15 which are seen correctly on the opposite side to the original are provided. The picture reading means 12 stands by where it can not be seen through said peek window 13 except during at least picture reading operation.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image smearing device for facsimiles, digital copiers, etc., and particularly relates to an image reading and straightening device that can reliably align the original position on a document table. .

In conventional image forming machines,
, 4. ．． When removing the ♂ζ from 9, the original was sealed onto a glass surface and read through the glass using an optical system. For example, in a conventional copying machine, as shown in Fig. 1, the original 2 is placed on the original platen glass 1 with the th4yI reading t... face down (in the example of Fig. 1, Book 2 is placed open on the original platen glass 1). 1) Align it to the specified position. Horizontal indicator 3 representing the gap size
and vertical finger $4 as a guide, then cover the document cover 5, and place the reading optical system (
(not shown) was configured to read 711 k from K.

Or, conversely, as shown in FIG. 2, place the original 2 face up on the original table 60 and the fingers 7! A method has been considered in which an oak glass 8 covers the original 2 from above and is placed inside the original glass 8, and the original is scanned and read by an image reading means (not shown).

However, in the case of Figure 1, the original must be repeated 5 times at all times, so if the original is scanned over several pages, such as in the case of Book hh, the original must be repeated page by page. It was difficult to use as the user had to repeat the process of turning over and overlapping the pages and placing them on the platen glass.Furthermore, if you wanted to read images from the Book manuscript that covered the entire page, you would have to The book had to be adjusted to the specified index position every time, resulting in inefficient work.On the other hand, in the case of Figure 2, the manuscript can be placed face up, so the Book
In the case of a manuscript, all you have to do is take the image reading device 10, lift it up by the handle 9, turn the page, and place the image reading device 10 over the document again. If the finger lI!7, which indicates the position of the document on the stand 6, is larger than the index 7, the document 2 covers the index 7, making it very difficult to align the document.

The present invention aims to eliminate the drawbacks of the above-mentioned conventional examples,
JfjL regardless of the type of manuscript, such as hook manuscripts or wide manuscripts.
It is easy to adjust the bucket to the specified position (and efficient Hara trench II!
An object of the present invention is to provide an Ii image reading device. And yet another rJjL draft! It is also possible to know the state at the time of image reading, the position of image reading, and the IJA draft i.
It was also possible to completely prevent this.

The present invention provides a third aspect of the present invention, in which a document holding means for statically holding a document placed on an original base, a means for removing the roughness of the document via the document holding means, and a means for removing the roughness of the document from the side of the document reading means are provided. The apparatus is characterized in that it has a means for visually observing the original document placement position and can confirm the document placement position from the document reading side.

An embodiment of the present invention will be described below with reference to the drawings.

69 is an external front view of a digital copier showing an embodiment of the present invention. The document 2 is placed on the document table 6, and there are fingers 117 on the document table 6 for marking the approximate YP and Fuku positions. The finger 4$7 may be painted on the document tray 6, or may be indicated by a lamp means such as LICU. Hold the hinge 11 at the back of the document table 6, and place the image reading device between the position where the document glass 8 is brought into contact with the wA side and the position where the document glass 8 is moved away. be able to.

Image reading device 10Fi Electrically connected to COD etc. on the side of the original glass 8 facing the original 11! ! There is a means 12 for reading 1g1 glaze. For example, SuggAff1ccD
(Image reading means 1 includes a method of reading self-information by combining main scanning and mechanical sub-scanning.
2 is covered with an external device 0' together with the operation section 11 and the like. However, as shown in FIG.
is provided with a peephole 16 made of a transparent plate material such as glass or acrylic so that the user can view the original 2 through the original glass 8.

On the original glass 8, there is a size display 14 and an index 15 that appear to be correct when viewed from the image reading means side, that is, from the holder facing the original.
is depicted. The image reading means 12 stands by at a position out of sight from the peephole 16 at least other than when reading an image.

By pressing the start button on the operation unit 16, image reading is started, and the image reader Qq performs sub-scanning within the viewing window. The same applies not only to the combination of COD main scanning and mechanical sub-scanning, but also to surface reading means such as area type CCD. Peephole 13
There is no limit to the size of the image reading device 10.
'It doesn't matter if the whole thing is transparent. Fi in the peephole again
A translucent or shutter may be provided to prevent glare from illumination during E-eclipse.

4 As mentioned above, according to the present invention, the user can see the condition of the document from the image reading device side through the document glass, and can therefore know the condition of the document at the time of image reading. You can know the deviation and adjust it to the specified position. Therefore, it is possible to read accurately and only scan specified parts from large documents.
Even when you want to read the body, you can align the position correctly without relying on the conventional sense, and when reading images of many pages from a book manuscript, you can also check the number of pages when reading the image. This makes it possible to perform error-free image processing.

[Brief explanation of the drawing]

Figure 1 is an external view of the company's conventional copying machine, Figure 2 is an upward-facing image reader when replacing a document, Figure 5 is a diagram of a typical field with the image reader open, and Figure 5 is a picture of a copy of a copy. FIG. 61 is an external view of an image reading device showing an embodiment of the invention, and a plan view of the image reading device shown in FIG. 2...Original 6...Original table 8...Original glass (original holding means) 12...
・Image reading means 15...-Glass window (means for visual inspection) 11
Canon Co., Ltd.

Claims (1)

[Claims] (1) An original state retaining means for holding still the IJJL bucket placed on the document table; a means for reading the document through the document holding means; and a means for visually observing the document from the side of the p-wheel reading means. -L. An image reading device characterized in that the document placement position can be checked from the document reading side.