JPS59212866A - Electronic blackboard device - Google Patents

Abstract

PURPOSE:To obtain an electronic blackboard which prints a sentence, graph, etc. described on a blackboard instantaneously and provides the repetitive use of the blackboard surface by using an electrophotographic copying device. CONSTITUTION:A character, graph, symbol, etc., are drawn with a writing tool on a sheet 2 unwound by unwinding structures 11-13 to use it as a write blackboard. The characters, etc., on the sheet 2 are lighted by a fluorescent lamp 10 and exposed to an electrostatic drum 19 through a lens 18. The toner image developed 20 on the drum 19 is transferred to the sheets of transfer paper 23 and 24 and fixed by a heater 22. When the picture on the sheet 2 is viewed or when addition or correction is performed, the sheet 2 is rewound to view it or perform the addition or correction. This corrected sheet is copied again similarly. The picture on the sheet 2 is cleaned and the sheet 2 is reused.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to an electronic blackboard device that can print written texts and figures on a blackboard used for meetings, meetings, etc.

(Prior art) In conventional meetings, briefings, meetings, etc., the contents of the meeting were written on a blackboard, and the matters decided as the progress was made.
Everyone in attendance began transcribing information such as Form 1 into their notebooks, or copying one transcriber's notes.
It had the following drawbacks.

(1) All or some of the transcribers are unable to concentrate on meetings or meetings.

(2) Meetings and meetings must be held at the speed of the transcriber, which takes time.

(3) Transcriber's errors occur and communication is insufficient.

(4) There is a proofreading process by the transcriber, and copies cannot be obtained immediately.

(Object of the Invention) In order to solve these drawbacks, the present invention provides an electronic blackboard device that can immediately print text, figures, etc. written on a blackboard, and can still use the blackboard surface repeatedly. do.

(Structure of the Invention) The present invention includes a casing, a writing medium fed out from a writing medium feeding structure provided in the casing, and a writing medium provided in a predetermined position of the casing for writing with a writing instrument. a photoconductor drum that charges the light of an image such as a character, figure, symbol, etc. as static electricity; a toner adsorption device that adsorbs toner to the charge on the photoconductor drum; A transfer device that transfers the image onto the recording medium that is fed out from the feeding structure of the recording medium, a charge removing device that removes the electric charge from the photosensitive drum, and fixing the toner transferred to the recording bottom body onto the recording medium. An electronic whiteboard device comprising: a j-car fixing device; and a j-car fixing device.

(Example) FIG. 1 is an external view of a first embodiment of the present invention.

In the figure, 1 is the housing, 2 is a sheet on the blackboard surface, 3 is a concave tray for placing Ferben, etc., 4 is an operating section, 5 is a tray for printing paper, 6 is the foot of the device, 7 is a caster, 25 is a storage box made of plain paper. FIG. 2 is a structural diagram of the first embodiment. In the figure, 2 is a sheet on a blackboard surface, 8 is a timing belt, 9 is a roller, 10 is a fluorescent lamp as a light source, 11-1 is a note sending drum, 1 and 2 are sheet winding drums,
1l-1a is a sheet feeding drum I-1 and a motor 12.
ll-2a is a shaft that directly connects the sheet winding drum 11-2 and the motor 12-2;
2-1 is a motor that drives the sheet sending drum 1 no 1; 12-2 is a motor that drives the sheet winding drum 11-2; 13-1 is a pig roller that moves the sheet 2 at a constant speed; -2 is the pinch roller 13-1 and the pulley 14
14.15-1 is a deceleration pulley, l5-2 is a shirt l-11r that directly connects pulley 15-1 and motor 16; l-11r is a motor that moves the sheet 2 at a constant speed; 17 is a light , 18 is a lens, 19 is a selenium drum,
2o is a toner adsorption device that adsorbs the toner cartridge to the selenium drum 19; 2o is a fluorescent lamp that removes the charge on the selenium drum 19; 22 is a heater that fixes the toner to plain paper; 23 is a printed plain paper. 24 is plain paper as a recording medium, 25 is a storage box for storing the plain paper 24, 26 is a motor that drives the belt 28, 27 is a motor that rotates the selenium drum 19, and 28 is a belt that moves the plain paper 24. be.

The operation of the first embodiment will be described in detail below with reference to FIG. Drum 11-1 and drum 1 arranged in parallel
Sheet 2 is wound on No. 2.

Drum 1 no 1 is shaft 1l-1a multi-motor 12
- It is directly connected to ノ. Similarly, the drum 11-2 is directly connected to the shaft l'1-2a motor 12-2. Sheet 2 is still held between drum 1 and drum 1 and 2 by pinch roller 13-1 and roller 9 with a predetermined pressure, so that slipping is prevented and the sheet is fed out at a constant speed. . This pinch roller 13-1 is driven by a motor 16.
It is carried out on a daily basis. The rotation of the motor 16 is caused by the shaft 15-
2 to the pulley 15-1, is decelerated by the timing belt 8 at 914, and is transmitted to the pinch roller 13-1 via the shaft 13-2. The signal from the operation unit 4 shown in FIG. 1 is output from the motor 12-1.12-\2
116 rotates at the same time, and the sheet 2 is sent out from the drum 1 no 1 and wound onto the drum 1 no 2. The speed of the sheet 2 at this time is determined by the rotational speed of the motor 16. The text and figures written on sheet 2 are moved downwards and placed on drum 1.
Before being wound up into No. 2, it is illuminated with a fluorescent light Z17F. The illuminated light passes through a selenium lens 18 into 17 light beams and is imaged onto a selenium drum 19. A charge corresponding to the image is generated on the selenium drum 19.

The selenium drum 19 is driven by a motor 27 to rotate, and its circumferential speed is synchronized with the feed amount of the sheet 2.Electric charges generated in a line on the circumference in the axial direction of the selenium drum 19 are Sitcar adsorption device 2 is activated by the rotation of drum 19.
o, and the toner adsorbing device 420 adsorbs the I toner onto the seleno drum 19 in accordance with its electric charge. The toner adsorbed on the soil of the selenium drum 19 is transferred from the plain paper storage box 25 by the motor 26 and belt 28 onto the plain paper 24 at the lowest point of the selenium drum 19, with an adsorption force stronger than the adsorption force between the selenoid drum No. 9 and the toner. is toner and plain paper 24
Acts between and is transferred. The amount of movement of the belt 28 is the same as the circumferential speed of the selenoid drum I9, and the plain paper 24 on the belt 28 moves in synchronization with the circumferential speed of the selenoid drum I9. The plain paper 24 to which the toner has been transferred passes under the heater 22 for keeping the toner constant, and the toner in the bottle is melted by the heat, and the plain paper 24
4 and becomes fixed and printed plain paper 23.

When the selenium drum 19 rotates from the lowest point to the position of the fluorescent lamp 21, the charge on the selenium drum 19 is removed by the light from the fluorescent lamp 21.

This will prepare you for the next printing.

If you need to look again at the screen on sheet 2 wound up on drum 1 or 2, or if you need to make additions or corrections, you can twist sheet 2 and look at it again. Corrections can be made.

Then, the screen after additions and corrections can be printed again by the same operation as described above. Further, even if the sheet 2 is completely wound up on the drum 1 or 2 and is no longer used, it is possible to use the sheet 2 in any number of circles by erasing the text and figures on the sheet 2. In this case, signals are transmitted from the operating section 4 shown in FIG. 1 to the motors 12-1, 12-2, . Transfer the sheet to i6, and wind and twist the sheet 2 one screen at a time onto the drum 11-2 and the sheet ram 1-no-1, erasing each time with a blackboard eraser. sheet 2
If the sheet 2 is made of a material such as Mylar film or fluorine film, text or figures written on the sheet 2 can be easily erased by friction. It is also possible to use an ink that can be erased by irradiation with light such as ultraviolet rays.

As explained above, in the first embodiment, (1) the number of screens is large because the notebook is wound on a drum;

(2) Since it has a printing function, it can print immediately when necessary.

(3) You can correct or add sentences and figures written in /-).

(4) Texts and figures on the sheet can be easily erased, so the sheet can be used over and over again.

FIG. 3 is a structural diagram of a second embodiment of the present invention.

In the figure, 29 is an endless sheet, 29-1 is a sprocket hole drilled at both ends of the endless sheet 29, 30-1 and 30-2 are drums, and 31 is a motor. As shown in FIG. 5, a plurality of sprockets 3O-2a are provided at both ends of the drum 3O-2. 10.1l-2
a, 17 to 28 have the same meanings as the same symbols shown in FIG. When the motor 3 rotates in response to a signal from the operation unit 4 shown in FIG. 1, the drum 30-2 rotates because the drum 3o-2 is directly connected to the motor 3 via the shaft 11-2a. . As the drum 3o-2 rotates, the endless note 29 moves. Drum 3o-:ztd, sprocket 3O-2a into hole 29-1 of endless sheet 29
Since the endless sheet 29 is driven while being inserted into the
The endless sheet 29 moves without slipping relative to the drum 30-2. Printing of sentences and figures written on the endless sheet 29 is the same as in the case of FIG. 2. In this embodiment, since the endless sheet 29 is used, the number of screens is small, but the structure is simple.

FIG. 4 is a structural diagram of a third embodiment of the present invention.

In this embodiment, the total length of the endless sheet 29 of the second embodiment shown in FIG. 3 is increased, and the number of screens is increased. In Fig. 4, a large number of rollers: 32 are arranged in parallel at predetermined intervals, and an endless sheet 2
9 passes through the drum 30-2, reciprocates between the plurality of rollers 320, and reaches the drum 30-2 via the drum 30-1. The endless belt 29 moves according to the rotation of the drum 3o-2 driven by the motor 3. In addition, the fourth
Although the device for printing texts and figures written on the endless sheet 29 is omitted in the figure, its structure and operation are the same as those shown in FIG. 2.

(Effects of the Invention) Since the present invention can instantly print characters and figures written on a blackboard, it has the following advantages, and can be expected to streamline meetings and meetings and save labor.

(1) Can be printed immediately. (2) The sheet can be used repeatedly. (3) Mistakes caused by transcription can be prevented. (4) The entry screen can be called up, and corrections and additions can be made.

[Brief explanation of drawings]

FIG. 1 is an external view of the first embodiment of the present invention, FIG. 2 is a structural diagram of the first embodiment of the present invention, FIG. 3 is a structural diagram of the second embodiment of the present invention, and FIG. This figure is a structural diagram of a third embodiment of the present invention, and FIG. 5 is a partially enlarged view of the drum shown in FIG. 3. DESCRIPTION OF SYMBOLS 1...Housing, 2...Seat, 4...Operation unit, 8...
・・Timing belt, 9・・Roller, 10, 21−・
・Fluorescent lamp, Jl-no, 7 Z-2,3L)-1,30
-2...Drum, 1l-1a, 1l-2a, 13-2
．． 15-2...Shaft, 12-1.12-2.16
．． 26゜27.31... Motor, 13-1... Pinch roller, 14.15-1... Pulley, 17... Light,
18...Nns, 19...Serendrum, 20...
Toner adsorption device, 22...Heater, 23.24...
Plain paper, 25...Storage box, 28...Belt, 29...
- Endless sheet, 30-1.30-2...drum, 32...roller. Patent applicant Oki Electric Industry Co., Ltd. Figure 1 Figure 2 Figure 3 Figure 4 0-2a

Claims (3)

[Claims] (1) A casing, a writing medium fed out from a writing medium feeding structure provided in the casing, and characters and figures drawn by a writing instrument on the writing medium provided in a predetermined position of the casing; A photoreceptor drum that charges the light of an image such as a symbol as static electricity, a toner adsorption device that adsorbs toner to the electric charge of the photoreceptor drum, and a recording medium that can receive the toner adsorbed on the photoreceptor drum in the housing. A transfer device that transfers the toner onto a recording medium that is fed out from the feeding structure, a charge removal device that removes the electric charge from the photosensitive drum, and a toner fixing device that fixes the toner transferred to the recording medium to the recording medium. An electronic whiteboard device comprising: (2) The electronic whiteboard device according to claim (1), wherein the writing medium is made of metal, an inorganic nonmetallic material, or an organic nonmetallic material. (3) The electronic whiteboard device according to claim (1), wherein the writing instrument uses ink that is erased by irradiation with light or ink that is erased by friction.