JPH10142710A - Original position display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to easily visually confirm a reading range without performing trial reading several times by displaying an original placing position on an original platen by an original size projection means when an original is placed on the original platen. SOLUTION: An original position projector 13 condenses light from a light emitting element 14 by using a lens 15, shapes the light through a slit 16 and forms a projected image along the end face of the original 10 on the lower surf ace or the front surface of the original platen 11. A reading unit 12 guides the reflected image of the original 10 radiated by the lamp by using a mirror 17, condenses it by using a lens 18 and forms the image by a reading CCD 19 so as to read the original. In the case of reading the original 10, the placing position of the original 10 is projected on the original platen 11 by the projector 13, so that the user is clearly instructed of the position where the original 10 should be put. Next, the user places the original 10 at the specified position on the original platen 11 and performs the reading operation of the original 10 by using the unit 12 for the original 10. Thus, the reading operation very intelligible for the user is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document position display device used in a reading or copying device used in an office or the like.

[0002]

2. Description of the Related Art In recent years, the market for reading or copying apparatuses used in offices and the like has greatly increased.

[0003] Among them, depending on the configuration of the apparatus, the placement positions of originals are different, and are different from center alignment, edge alignment, vertical alignment, and horizontal alignment.

However, the position of the original is only marked small at the end of the original platen. In addition, since the size of each original is displayed, it is very difficult to judge, and it is very difficult for a user to understand.

For this reason, even when a user attempts to read or copy a document while placing it, the document and the paper to be read or copied, and the position of the paper often do not match, resulting in a large loss in reading or copying work. However, if the position of a document to be placed on the platen is displayed, the display itself is read or copied, which hinders the actual reading or copying operation.

There is also a size discriminating apparatus for reading the size of the original and setting the paper size at the same size using the basic pattern. There are some things that cannot be handled, and there has been a long-awaited need for a means of displaying the position of the original in a more easily understood manner.

In addition, when enlarging or reducing the size, it is impossible to determine which area of the original is to be read or copied unless the reading or copying operation is performed, resulting in a considerable loss of work.

[0008] Further, in recent years, multifunction peripherals, such as digital copiers, that perform more complex reading have appeared, and it has become increasingly important to display the range of a document to be read or copied in an easy-to-understand manner for a user. Is coming.

However, the conventional method relies on the display of the position of the original on the end surface of the original platen, and there is no reading or copying apparatus that is easy to understand for the user of the reading or copying apparatus.

Hereinafter, a reading or copying method of a conventional reading or copying apparatus will be described.

The following is a description of a conventional image reading apparatus disclosed in Japanese Patent Laid-Open No. Hei 7-184005. FIG. 3 shows a conventional general reading method.

Reference numeral 30 denotes a document. Reference numeral 31 denotes a document table.
32 is a platen support, 33 is a liquid crystal display, 34 is a backlight, 35 is a reflection mirror, 36 is a reading lens,
37 is a reading CCD, and 38 is a reading unit.

The operation at this time is as follows at the time of reading.
First, the manuscript 30 is placed on the manuscript table 31 based on the manuscript display of the liquid crystal display device 33. The placed original 30 is
5 reflection mirror, 36 reading lens, 37 reading CC
The reading operation is performed by the reading unit 38 constituted by D.

[0014]

However, in the method shown in FIG. 3, the original is placed on the liquid crystal display on the lower surface of the original plate, and the original is placed. However, there is a problem that the resolution of the document to be read is reduced and the accuracy in reading or copying is reduced.

In addition, in a device that performs a more complicated reading or copying operation such as a digital copier in which a facsimile, a scanner, and a copying machine are integrated, a placement position of a document that is easy to understand for a user during the reading operation or The importance of displaying the reading position that is about to be scaled is increasing.

An object of the present invention is to solve the above-mentioned conventional problems and to provide a reading means which has a simple structure, is inexpensive, and has a minimum number of parts and can perform a reading operation which is easy for a user to understand. I do.

[0017]

According to the present invention, there is provided a transparent platen for reading a document, and a document size for displaying a document size specified by an input device on the platen. A projection unit, and when placing a document on the platen, displaying the document placement position on the platen by the document size projection unit so that the user can clearly indicate the position to place the document. It is configured in.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, there is provided a transparent document table for reading a document, and a document size projection for displaying a document size specified by an input device on the document table. Means for placing a document on the platen by displaying the document placement position on the platen by the document size projection means so that the user can clearly indicate the position to place the document. It can be configured.

According to a second aspect of the present invention, there is provided a transparent document table for reading a document, and the document table enlarged and reduced based on a designated sheet size when the document is enlarged or reduced. Document size projection means to be displayed on the
Moving means for moving the document size projection means according to enlargement / reduction, moving the document size projection means to a required position by the movement means, displaying the document size on the platen by the document size projection means, The document size can be configured so that the user can clearly indicate the document size.

[0020]

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

(Embodiment 1) FIG. 1 is a sectional view of a document position display device according to the present invention.

In FIG. 1, 10 is a document, 11 is a document table, 12 is a reading unit, and 13 is a document position projector. 14 is a light emitting element, 15 is a lens, 16 is a slit, 17 is a mirror, 18 is a lens, and 19 is reading C
CD, 20 is a housing, and 21 is a platen cover.

Next, the operation will be described. The document position projector 13 condenses the light from the light emitting element 14 with the lens 15 and shapes the light with the slit 16 to form a projected image along the end face of the document 10 on the lower surface or the front surface of the document table 11.

Also, the reading unit 12
The original image is read by guiding the reflected image irradiated by the lamp of No. 1 with the mirror 17, condensing the reflected image with the lens 18, and forming the image with the reading CCD 19.

In order to read the original 10, first, the mounting position of the original 10 is projected on the original table 11 by the original position projector 13.
The position where the document 10 should be placed is clearly indicated to the user.

Next, the user places the document 10 on the platen 11
And the reading operation of the document 10 is performed using the reading unit 12 of the document 10.

At this time, since the placement position of the document 10 is clearly indicated by the document position projector 13, a reading operation that is very easy for the user to perform can be performed without causing a trial reading or a redo.

Although only the size of the document 10 in the vertical direction is displayed here, it goes without saying that an instruction can be given by forming the slit shape in the horizontal direction also in the horizontal direction. In addition, although the instruction of the edge portion of the document is given here, it goes without saying that the position and size of the document may be projected by projecting the rectangular partial shape of the body portion of the document.

In addition, although the example of the reading device is shown here, it goes without saying that the same document position can be displayed in the copying device.

(Embodiment 2) FIG. 2 is a cross-sectional view of a document position display device at the time of enlargement / reduction according to the present invention.

In FIG. 2, reference numeral 22 denotes a moving motor, 23 denotes a moving screw, and 24 denotes a moving claw.

Next, the operation will be described. When reading a document, first, the document position projector 13 having the moving claw 24
The moving screw 23,
It is moved by the movement motor 22.

At a predetermined position, the reading range or the mounting position of the original 10 is projected onto the original platen 11 by the original position projector 13, and the user confirms the reading range or the original mounting position with the projected image. Then, the document 10 is placed at a predetermined position.

At this time, the image of the original 10 is
The image of the original 10 is read using the reading unit 12 having the lens 18 and the reading CCD 19.

At this time, the original position projector 13 has the light emitting element 1
The light of No. 4 is condensed by a lens 15, shaped by a slit 16, and projected on the back or front surface of the document table 11.

Thus, in the image reading operation, the user can clearly display the reading range to the user.

Here, an example of the reading device has been described.
Needless to say, the same document position can be displayed in the copying apparatus.

[0038]

According to the present invention, there is provided a transparent platen for reading a document, and a document size projection means for displaying a document size specified by an input device on the platen. Performing document position display means of the reading device, wherein the document placement position is displayed on the platen by the document size projection means so that the user can clearly indicate the position where the document is placed; Accordingly, a very advantageous effect that a reading device in which the user can easily visually recognize the reading range without performing the test reading many times can be obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view of the configuration of a first embodiment of the present invention.

FIG. 2 is a sectional view of the configuration of a second embodiment of the present invention.

FIG. 3 is a cross-sectional view of a conventional configuration.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 original 11 original platen 12 reading unit 13 original position projector 14 light emitting element 15 lens 16 slit

Claims (2)

[Claims] An original document reading unit configured to display a document size specified by an input device on the platen; A document position display device configured to display a document placement position on a document table by the document size projection means so that a user can clearly indicate a position on which a document is placed; 2. A transparent document table for reading a document, document size projection means for displaying the document size enlarged or reduced based on a designated paper size on the document table when the document is enlarged or reduced, Moving means for moving the document size projecting means in accordance with reduction, moving the document size projecting means to a required position by the moving means, displaying the document size on the document table by the document size projecting means, A document position display device configured to clearly indicate the size to a user.