JPH0633458Y2 - Image processing device - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention has a function of projecting a projection document on a screen like an overhead projector and a function of forming an image of the document on a sheet or a transparent sheet like a copying machine. The present invention relates to an image processing device that enables the above.

[Prior art]

Conventional overhead projector (hereinafter referred to as OHP)
There are known two types, a transmission type and a reflection type. The former transparent type illuminates the projection original from the lower surface of the original placing table, and projects the image of the projection original onto the screen through a projection lens and a reflection mirror arranged above the upper surface of the original placing table. It is a thing. In the reflection type, the projection original placed on the reflection type Fresnel lens is illuminated from the upper surface, and the reflection image of the projection original is displayed on the screen through the projection lens and the reflection mirror arranged above the Fresnel lens. It is to project. And as the projection original used for the above-mentioned OHP, figures, characters, etc., apart from simple originals that can be created by handwriting directly on a transparent sheet with a colored pen, etc., usually using an electrophotographic copying machine, etc. It is created by copying the required image on a transparent sheet. Therefore, it is necessary to prepare a projection manuscript in advance when conducting a lesson or an explanation using OHP at a school, various explanation venues, conference rooms, and the like. For this reason, even in a situation where it is suddenly desired to project an unprepared document as a projection document during explanation or during a meeting, the projection document cannot be created and cannot be projected without a copying machine nearby. Therefore, conventionally, an image processing apparatus has been proposed which has both functions of an OHP and a copying machine, and a projection original used for the OHP can be obtained by copying using the copying machine. As such an apparatus, the original table on the main body of the apparatus was moved during copying, and the original table was moved from the light collecting plate placed on the upper part of the apparatus main body during projection, and built in the projection unit set above the light collecting plate. There is one in which a condenser plate is illuminated from an illumination lamp and the reflected light is made incident on a projection unit. In the image processing apparatus having such a configuration, when the document table slides on the reflection type light collecting plate and moves, the reflection type light collecting plate is opened, or when the reflection type light collecting plate is opened, the document is mistakenly read. When the table was moved, the document table came into contact with the reflective light collector and caused scratches, and when the OHP was used, the scratches appeared on the screen image, resulting in a very bad impression. In order to solve this, conventionally, the light collector is placed at a position lower than the holding frame to prevent scratches.

[Problems to be solved by the device]

In the image processing apparatus having such a configuration, since the holding frame is higher than the light collecting plate, the transparent document floats at the frame, and in the reflection type OHP, a double image is formed and the projected image is blurred. Therefore, in the present invention, the condensing plate is placed at the same height as the holding frame to prevent the projected image from being blurred, and the reflecting condensing plate is opened when the document table slides on the reflecting condensing plate. In addition, even if the original table is accidentally moved in the open state, the original table and the reflection type light collecting plate do not come into direct contact with each other so that the reflection type light collecting plate is not scratched. Is to provide.

[Means for solving problems]

That is, the image processing apparatus of the present invention has an input section for inputting an image of a document, a document table which is set along with the document and is movable along the input section, and an image input from the input section as a sheet. An image forming unit formed on the upper side and a Fresnel lens on a part of the upper surface are arranged below the document table in the moving direction of the document table and in parallel with the input section, and the input section side of the main body of the apparatus is a document. A reflection type light condensing plate supported to be openable and closable around an axis orthogonal to the moving direction of the table,
Protrusions are provided on at least one of the upper surface of the reflection type light collecting plate other than the Fresnel lens portion and the portion of the document table corresponding to the upper surface, and the document table of the reflection type light collecting plate is opened with the reflection type light collecting plate opened. When the document table is moved upward, the document table comes into contact with the upper surface of the reflection type light collecting plate other than the Fresnel lens part via the projection.

【Example】

An embodiment of the image processing apparatus of the present invention will be described below in detail with reference to the drawings. As shown in FIGS. 1 to 5, an apparatus main body 1 having an image forming function capable of creating a projected original by copying or the like includes an original table 2 movably mounted on an upper portion of the apparatus main body 1, and an original. An image input section for inputting the image of, for example, a reading section 3 provided on the upper surface of the apparatus main body 1 for scanning the original on the original table 2. Reference numeral 4 denotes a mechanism for forming an image, such as a printing mechanism, which is built in the apparatus main body 1. Further, the apparatus body 1 is provided with a reflection type light collecting plate 5 arranged in parallel on the upper surface of the reading unit 3 and a projection unit 6 attached to the side surface of the apparatus body 1 and supported on the upper surface of the light collecting plate 5. ing. The above-mentioned image forming function of the apparatus main body 1, for example, a copying function, is built in the apparatus main body 1, an original table 2 movably mounted on the upper portion thereof, a reading unit 3 installed on the upper surface of the apparatus main body 1 for scanning an original. This is achieved by the printing mechanism 4. The printing mechanism 4 includes a printing unit, a roll paper automatic feeding unit housed in the apparatus main body 1, a manual paper feeding unit,
And a sheet discharging means. That is, as shown in FIG. 4, a platen 12 driven by a motor is provided with a printing means, for example, a thermal head 13, and a paper feed roller 14 closely attached to the lower part thereof.
And a paper discharge roller 15 closely attached to the upper part thereof. Paper guides 16 and 17 are provided above and below the paper feed port A, a paper guide 18 for reversing the paper is provided around the platen 12, and a paper guide 16 is provided at the paper ejection port B.
A paper guide 19 is provided opposite to. The paper feed port A and the paper ejection port B are formed above and below the same side end of the apparatus main body 1, and are closed when not in use by a member composed of a paper feed tray 21 rotatably mounted around a shaft 91. Has been
At the time of use, the paper feed tray 21 is tilted and opened. A paper guide 23 also serving as a tray for the roll paper 22 is provided in the apparatus main body 1, and the roll paper 22 is fed to the paper discharge rollers 15 via the platen 12. Further, a document table 2 movably mounted on the upper part of the apparatus body 1.
Is provided with a transparent plate 24 such as glass for supporting the document 25, one end side of which is supported by a support shaft (not shown) on the transparent plate 24, and the other end side is opened and closed vertically about this support shaft. Along with the manuscript cover 26 that is attached so as to be free, it is driven by the motor from the light collecting plate 5 side to the reading unit 3 side. As shown in FIG. 7, a projection 30 for preventing contact with the reflection type light collecting plate 5 is provided at the end of the document table 2 on the light collecting plate 5 side, as shown in FIG. The reading unit 3 provided on the upper surface of the apparatus main body 1 for scanning an original on the original table 2 is configured by a contact image sensor 132 or the like. When the reading unit 3 starts reading, the document table 2 moves at a constant speed, and the document illuminated by the light source 131 through the transparent plate 24 is condensed through the condensing lens array 133 onto the contact image sensor 132 that scans at regular intervals. As a result,
Reading is performed at regular intervals in the sub-scanning direction. The read data for each line is digitally processed by the control device 134 bit by bit in the main scanning direction and binarized. Next, on the upper surface of the apparatus main body 1, a reflective condensing plate 5 is arranged in parallel on the reading section 3. This reflection type light collector 5
Is a normal Fresnel lens 27 as shown in FIG.
And a reflective layer 28 made of a metal vapor deposition layer formed on the back surface thereof and housed and held in a main body top cover 29.
Further, as shown in FIG. 5, the main body upper surface cover 29 can be opened and closed by pivotally attaching one end to the main body 1 of the apparatus. The printing mechanism 4 is built in the apparatus body 1 below the light collector 5. Although the printing mechanism 4 for printing with the thermal head 13 is shown as the image forming mechanism in this embodiment, it may be an image forming mechanism such as an electronic copying machine or a laser printer. The projection unit 6 supported on the upper part of the light collector 5 is pivotally attached to the side surface of the apparatus body 1 via an arm 7 so as to swing freely.
When the image forming function of the apparatus body 1 is used, the apparatus body 1 can be folded down and stored in the side portion of the apparatus body 1. The projection unit 6 is designed not to fall on the side end of the apparatus main body 1 having the paper feed port A and the paper ejection port B, but to the opposite side, so that the image forming function can be used when the projection unit 6 is stored. It has become. As shown in FIG. 1, a rotatable handle 33 is provided on the side surface of the apparatus main body 1 opposite to the projection portion 6, and the apparatus main body 1 inside thereof is provided.
An operation panel 34 is also rotatably attached to the side surface. Next, the operation of the image processing apparatus of the present invention will be described. First, when utilizing the image forming function of the device of the present invention,
When the original cover 26 is opened, the copy original is placed on the transparent plate 24 so that the image surface faces the transparent plate 24, the original cover 26 is closed, and the copy switch provided on the operation panel 34 is pressed to copy. The operation is started. Further, when the image processing operation of the present invention is used as an OHP, the original table 2 is moved from above the reflection type light condensing plate 5 made of a Fresnel lens mounted on the upper surface of the apparatus main body 1 and projected onto this light condensing plate 5. All that is required is to place the original and press the lamp switch provided on the operation panel 34. Even if the light collector 5 is opened during the above-mentioned work and the manuscript table 2 and the light collector 5 are about to come into contact with each other, the projection 30 provided on the manuscript table 2 stores and supports the light collector 5 and the main body top cover. By abutting against 29, direct contact between the document table 2 and the light collector 5 is prevented.

[Effects of the embodiment]

According to this embodiment, the light collecting plate 5 on the light collecting plate 5 side of the document table 2 is arranged.
Since the projection 30 is provided at a position deviated from the extension line of, even if the reflection type light collecting plate 5 is opened when the document table 2 slides on the reflection type light collecting plate 5, the roll paper 22 When the reflection type light condensing plate 5 is in the open state when the document is replaced or the like, even if the document table 2 is moved by mistake, the projection 30 is provided on the main body top cover 29.
Since the original platen 2 and the reflection type light collecting plate 5 do not come into direct contact with each other and the reflection type light collecting plate 5 is not scratched, therefore, the reflection type light collecting plate which requires strict optical precision. 5 can be configured in a simple flat plate shape, and the problem such as deformation that may occur by providing the projection 30 on the light collector 5 side can be avoided. Further, since the light collecting plate 5 is placed at the same height as the main body top cover 29, a clear projection image can be obtained.

[Modification]

Although the projection 30 is provided on the document table 2 in the above embodiment,
A protrusion such as a protrusion may be provided on the main body upper surface cover 29 within a range that does not interfere with the movement of the.

[Effect of device]

As described above, the image processing apparatus of the present invention prevents collision and other contact accidents between the document table and the reflection type light collecting plate, so that the reflection type light collecting plate is not scratched and an expensive reflection type light collecting plate is used. We were able to extend the life significantly.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, and is an overall explanatory view when it is used as an OHP. FIG. 2 is a perspective view showing a state where each part is stored in a predetermined position. FIG. 3 is a side view thereof. Is a schematic cross-sectional view when used as an OHP, FIG. 5 is a schematic cross-sectional view with the light collector open, and FIGS. 6A and 6B are plan and cross-sectional views of the reflection-type light collector. FIG. 4 is a perspective view showing a relationship between a document table and a reflection type light collecting plate. DESCRIPTION OF SYMBOLS 1 ... Device main body, 2 ... Original platen 3 ... Reading part, 4 ... Printing mechanism 5 ... Light collector, 6 ... Projection part 25 ... Original, 26 ... Original cover 29 ... Main body top cover, 30 ... Protrusion 31 ... Machine frame, 32 … Reflecting mirror 33… Handle, 34… Operation panel

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshihiko Hirose 3167 Yamamiya-cho, Kofu-shi, Yamanashi Japan Precision Industry Co., Ltd. (72) Takashi Kakita 3167 Yamamiya-cho, Kofu-shi, Yamanashi Japan Precision Industry Co., Ltd. In-house (72) Inventor Hiroshi Saito 3167 Yamamiya-cho, Kofu-shi, Yamanashi Japan Precision Engineering Co., Ltd. (72) Inventor Masataka Oshima 3167 Yamamiya-cho, Kofu-shi, Yamanashi Japan Precision Engineering Co., Ltd. (72) Inventor Person Eiji Nakazawa 3167 Yamamiya-cho, Kofu-shi, Yamanashi Japan Precision Industry Co., Ltd. (56) References JP-A-62-116982 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. An input unit for inputting an image of a document, a document table on which the document is set and movable along the input unit, and an image input from the input unit is formed on a sheet. An image forming unit and a Fresnel lens on a part of the upper surface are arranged in parallel with the input unit in the moving direction of the document table below the document table, and the input unit side with respect to the apparatus main body is the moving direction of the document table. A reflection type light condensing plate which is openably and closably supported around an axis orthogonal to the above, and a projection is provided on at least one of the upper surface of the reflection type light collecting plate other than the Fresnel lens part and the part of the document table corresponding to the upper surface. When the document table is moved above the reflection type light collecting plate with the reflection type light collecting plate opened, the document table is brought into contact with the upper surface of the reflection type light collecting plate other than the Fresnel lens part through the protrusion. An image featuring Management apparatus.