JPS62203463A - Electronic blackboard device - Google Patents

Abstract

PURPOSE:To obtain an electronic blackboard device capable of erasing automatically a picture after the end of read by allowing a read section to hold a cleaning means cleaning a hand-written medium. CONSTITUTION:A character or a graphic such as a memorandom or message is written on a sheet 11. In recording the written character or graphic a motor 15 is driven. The torque of the motor 15 is transmitted to a support roller 12 via a belt 14, the support roller 12 is driven in the direction of arrow A to carry the sheet 11 in the direction of arrow B and to carry recording paper 19 in the direction of arrow C at the same speed. The picture written on the sheet 11 is read by a read section 16, where the picture is converted into an electric signal and the result is sent to a recoding head 18. The recording head 8 records the sent signal one after another on the recording paper 19 carried at the same speed as that of the sheet 11. When the picture hand-written part of the sheet 11 passes under the read section 16, the unmagnification picture on the sheet 11 is recorded on the recording paper 19. On the other hand, the sheet 11 finished with read by the read section 16 is cleaned by a cleaning means 17 and the picture on the sheet 11 is erased automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electronic blackboard device that can record images of texts, figures, etc. written on a blackboard on recording paper.

2. Description of the Related Art Conventionally, as shown in FIG.
A pair of rollers 2.3 holding the rollers 2, 3, a motor 1 for driving the rollers 3, a light source 5 such as a fluorescent lamp, an image sensor 6 for reading the image, and a light reflected from the sheet 1 to the image sensor 6. It consists of a lens 7 for forming an image, and a recording device 9 connected to the image sensor 6 via a flat cable 8. In this device, in order to record text or figures written on the sheet 1, the motor 1 is operated to move the sheet 1, and at the same time, the image on the sheet is illuminated by the light source 5 to emit the reflected light. An image is formed on the image sensor 6.

This image sensor 6 reads the image on the sheet l in a line shape in the width direction (main scanning direction) and converts it into an electrical signal. On the other hand, as the motor 11 rotates, the sheet l travels in the width scanning direction in synchronization with the reading speed, so the image sensor 6 repeatedly reads in the main scanning direction one after another, converting the entire image into an electrical signal. This signal is sent to the recording device 9 via the flat cable 8, and recorded on a recording medium, that is, recording paper 10 (see, for example, Japanese Patent Laid-Open No. 171695/1983). After reading is completed, characters, figures, etc. that are no longer needed are erased by hand using a blackboard eraser made of felt, cloth, or the like.

Problems to be Solved by the Invention However, with this configuration, there is a problem in that unnecessary characters, figures, etc. must be erased every time by holding the blackboard eraser, which is cumbersome.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an electronic whiteboard device that can automatically erase an image after it has been read.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention includes a reading section that reads an image on a writing medium and converts it into an electrical signal, and a reading section that reads an image on a writing medium and converts it into an electrical signal, and a reading section that reads an image on a writing medium and converts it into an electrical signal. The electronic whiteboard device has a recording section that performs recording, and the electronic whiteboard device is configured such that the reading section holds a cleaning means for cleaning a writing medium.

Function: As described above, in the present invention, since the reading section is provided with a cleaning means for cleaning the writing medium, the reading section can scan the writing medium and at the same time, the cleaning means can erase the image on the writing medium at the end of scanning. It can complete the preparation for the next writing.

EXAMPLES The present invention will be described in detail below. FIG. 1 shows a schematic configuration of an electronic whiteboard device according to an embodiment of the present invention, in which 11 is a sheet of paper constituting a writing medium, which is hung between a pair of support rollers 12 and 13. There is. A motor 15 is connected to one of the support rollers 12 via a belt 14 . These support rollers 12, 13, motor 15, etc. constitute a driving device for the sheet 11. Note that as the motor 15 of this embodiment, there is no need to use a stepping motor as in the conventional case, and an inexpensive induction motor may be used.

Reference numeral 16 denotes a reading section that reads the image on the seam 1 in a line shape and converts it into an electric signal, and is provided stationary opposite the sheet 11. The reading unit 16 includes a light source that illuminates the sheet surface, a line-shaped image sensor that converts incident light into an electrical signal, and a lens that forms an image of reflected light from the sheet surface on the image sensor. Further, a cleaning means 17 made of felt or the like is provided downstream of the reading position of the reading section 16 in the conveying direction of the sheet 11 (direction of arrow B). This cleaning means 17 is movably provided in an operating position in contact with the seat 11 and a non-operating position away from the seat 11 by an operating means (not shown).

18 is a recording head, 19 is a recording paper which is a recording medium, 20
21 is a recording paper roll, and 21 is a cutter. Recording head 1
8 records an image on the recording paper 19 according to the signal from the reading section 16, for example by thermal recording, and according to the image signal for one line of the sheet 11 read by the reading section 16, One that records a single line image at the same size is used. The recording head 18 is pressed by a spring (not shown) or the like against a support roller 12 that supports the sheet 11, and the recording paper 19 is passed between the recording head 18 and the support roller 12. Therefore, the support roller 12 also functions as a platen roller that presses the recording paper 19 against the recording head 18 and conveys it.

The operation of the electronic whiteboard device configured as described above will be described below.

This electronic blackboard device is used for memos, messages, etc., and characters, figures, etc. for memos, messages, etc. are written on the first screen. To record the written characters, figures, etc., the motor 15 is driven. The rotation of the motor 15 is transmitted to the support roller 12 via the belt 14, and the support roller 12 rotates in the direction shown by arrow A to convey the sheet 11 in the direction shown by arrow [3, and also transports the recording paper 19 in the direction shown by arrow C. Convey at the same speed in the direction shown. The image written on the sheet 11 is read by the reading section 16, converted into an electrical signal, and sent to the recording head 18. The recording head 18 sequentially records on a recording paper 19 that is being conveyed at the same speed as the sheet 11 in accordance with the sent signals. Thus, when the image writing portion of the sheet 11 passes under the reading section 16,
An image of the same size as the image on the sheet 11 is recorded on the recording paper 19. On the other hand, in the reading section 16, the sheet 11 that has been read is cleaned by the cleaning means 17, and the image on the sheet 11 is automatically erased. If it is not necessary to erase the image on the sheet 11, the sheet 11 may be moved and scanned while the cleaning means 17 is separated from the sheet 11.

In the above embodiment, the present invention is applied to an electronic whiteboard device having an extremely simple structure. That is, in the above embodiment, a separate motor is not used to convey the recording paper 19, and the sheet 11
The support roller 12 supporting the recording paper acts as a platen roller that presses and conveys the recording paper against the recording head. In this case, since the sheet 11 constituting the writing medium contacts the back side of the recording paper 19 and conveys the recording paper 19, if characters, figures, etc. written on the sheet 11 remain, the recording paper There is a concern that the back side of the sheet 11 may be soiled, or that the coefficient of friction between the sheet 11 and the recording paper 19 may be reduced due to dirt, causing slippage. Since the 7-board 11 is cleaned at the same time, there is an advantage that such a problem is solved. However, the present invention is not limited to this type of electronic whiteboard device, but can be applied to any other type of electronic whiteboard device, for example. , it goes without saying that the present invention can also be applied to an electronic whiteboard device of the type shown in FIG.

Effects of the Invention As is clear from the above description, the present invention provides a cleaning means for cleaning the writing medium in the reading section, so that the reading section scans the writing medium and reads the image at the same time.
The writing medium can be automatically cleaned and images on the writing medium can be erased, and the conventional method has the effect of eliminating the troublesome work of holding a blackboard eraser by hand to erase images. .

[Brief explanation of drawings]

FIG. 1 is a plan view showing a schematic structure of an electronic whiteboard device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a schematic structure of a conventional electronic whiteboard device. DESCRIPTION OF SYMBOLS 11... Sheet (writing medium), 12... Support roller, 15... Motor, 16... Reading part, 17... Cleaning means, 18... Recording head, 19... Recording paper (recoding media).

Claims (2)

[Claims] (1) A movably provided writing medium, a reading unit placed opposite to the writing medium that reads an image on the writing medium and converts it into an electrical signal, and moving the writing medium with respect to the reading unit. and a recording section that records on a recording medium according to the output from the reading section, the reading section holds a cleaning means for cleaning the writing medium, and when the reading section scans the writing medium, An electronic whiteboard device characterized in that the cleaning means erases an image on a writing medium. (2) The electronic whiteboard device according to claim 1, wherein the reading section has selection means for moving the cleaning means to an operating position in which it contacts the writing medium and an inoperative position away from the writing medium.