JPH03211100A - Electronic blackboard - Google Patents

Abstract

PURPOSE:To obtain an electronic blackboard equipped with a display function capable of inputting the manuscript or book manuscript incapable of moving to the electronic blackboard by making a manuscript data input means freely detachable. CONSTITUTION:A receiving tray 6 for placing a felt pen 5 or an eraser 3 and an operation panel 7 for operating an electronic blackboard are arranged to an upper surface. A recessed part 4 is formed to the upper surface of a forward extension part and an image scanner 8 for inputting manuscript data is mounted to the recessed part 4 in a freely detachable manner. The image scanner 8 is positioned within the arm's length of the person using the electronic blackboard. Since the receiving tray 6 or the operation panel 7 are arranged to the part where the image scanner 8 is mounted, the operation inputting a paper manuscript to the image scanner 8 can be simply performed. When the image scanner 8 is separated, the manuscript 16 on a disk 16 present at a position separated from the main body of the electronic blackboard can be inputted and a book manuscript 17 can be inputted.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention forms an electrostatic latent image on an electrostatically recordable electronic display member using an electrostatic recording head, and then converts it into a visible image using toner. The present invention relates to an electronic blackboard on which images are displayed.

[Summary of the invention]

This invention relates to an electronic blackboard in which an electrostatic latent image is formed on an electrostatically recordable electronic display member by an electrostatic recording head and then converted into a visible image by toner to display the image. By making the device removable, it is possible to read manuscripts and book manuscripts located at a distance from the main body, and it is also possible to easily input manuscripts when used as a stand-alone device.

[Conventional technology]

Conventionally, the applicant has proposed an electronic blackboard that has a function of hard copying handwritten characters on a blackboard sheet, and also has a display function that can read manuscript information and write and display this manuscript information on the blackboard sheet. (Patent Application No. 1571, No. 76, 1982).

FIGS. 10 and 11 show the external structure and internal structure of a conventional electronic blackboard with a display function of this type. As shown in FIG. 10, the entire appearance of this electronic whiteboard is covered with a cover 100, and an electrostatic recording medium 101 exposed from the front window of this cover 100 functions as a writing board.

An image scanner 102 is installed at the lower front of the cover 100.
is built-in. When reading a document and displaying the read document on the electrostatic recording medium 101, the document insertion slot 103 is used.
A document 105 is inserted into the document 105, and the document information of the document 105 is read by the image scanner 102. Once the document information is read, the document 105 is discharged from the discharge port 104.

When making a hard copy of the drawing written on the electrostatic recording medium 101, the drawing written on the electrostatic recording medium 101 is recorded by the printer 106, and this recording paper 107 is discharged from the printout outlet 10.

A leg portion 110 is fixed to the lower end of the cover 100. Casters 109 are attached to the legs 110. The casters 109 allow the electronic blackboard to be moved freely.

FIG. 11 shows the internal configuration of this electronic blackboard with display function. As shown in FIG. 11, an electrostatic recording medium 101 as a blackboard sheet is arranged to be endlessly transportable via a feed motor 112 and a drive roller 113.

Opposed to the electrostatic recording medium 101 is a recording head 116 consisting of a writing electrode or stylus electrode 114 and a control electrode 115, an AC static eliminator 117, a cleaning blade 118, and a CCD line sensor 120 equipped with a lens system 119. , and a reflecting mirror 121 are provided. Further, a developing device 122 that supplies toner is provided.

When this electronic blackboard is normally used, the electrostatic recording medium 10
Characters or the like are written on the writing surface of the paper 1 using, for example, a felt-tip pen or the like. When copying the drawing written on the electrostatic recording medium 101, the electrostatic recording medium 101
1 is transferred, and on the back side of this device, the electrostatic recording medium 1
01 is read by a CCD line sensor 120 via a reflecting mirror 121 and a lens system 119. Then, the drawings written on the electrostatic recording medium 101 are recorded on a predetermined recording paper 107 by the printer 106 by xerography or the like.

The second recording paper 107 is discharged from the printout discharge port 108.

When displaying a read original on the electrostatic recording medium 101 using electrostatic recording, the original is inserted through the insertion slot 103 and the image scanner 102 reads the original information. An electrostatic latent image screen based on the read document information is recorded on the writing surface of the electrostatic recording medium 101 by the recording head 116,
During the transfer from the electrostatic recording medium 101, toner from the developing device 122 adheres to the charged portion and a visible image (toner image) is displayed.

Note that a cleaning blade 118 is installed on the back side of the device.
Toner, ink written with a felt-tip pen, etc. are wiped off by the AC static eliminator 117, and static electricity is removed by the AC static eliminator 117.

[Problem to be solved by the invention]

As shown in FIG. 10, in this type of conventional electronic whiteboard, an image scanner 102 is built into the front lower part of a cover 100. In this way, image scanner 1
02 is built-in, there is a problem that it is not possible to input a manuscript that cannot be moved to the electronic blackboard. Also,
There is a problem in that paper manuscripts can be input, but book manuscripts cannot be input.

Therefore, it is conceivable to attach the image scanner externally and attach it to the main body of the electronic whiteboard using a connector as necessary.

By attaching an external image scanner, it is possible to read and input documents that cannot be moved. It is also possible to read book manuscripts.

However, if the image scanner is attached externally, the image scanner must be attached with a connector each time a document is read, which is not easy to operate. Also, if you constantly wear an image scanner, it will get in the way when you are not using it. Furthermore, when the electronic whiteboard is used as a standalone device, a document insertion slot 103 and a document output port 1 are provided at positions where manuscripts can be easily inserted and removed.
Since 04 is not fixed, operability is not good.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an electronic blackboard with a display function that allows input of manuscripts and book manuscripts that cannot be moved to the electronic blackboard.

Another object of the present invention is to provide an electronic blackboard with a display function that is easy to operate and does not interfere with the image scanner when not in use.

[Means to solve the problem]

The present invention includes a blackboard sheet 1 having a chargeable dielectric film, a manuscript information input means 8, a charging means 56 for charging the input manuscript information on the blackboard sheet 1 to form a latent image,
This electronic whiteboard is equipped with a developing means 64 for adsorbing, semi-fixing, or fixing toner on the latent image, and is characterized in that the input means 8 for document information is detachable.

[Effect]

An image scanner 8 for reading document information is detachably attached to the main body of the electronic blackboard. In this case, if the image scanner 8 is attached, when using the electronic whiteboard stand-alone, inputting the document information becomes easier, and the image scanner 8 does not get in the way. image scanner 8
By detaching it, you can input a manuscript located far from the electronic blackboard or input a book manuscript.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

The electronic blackboard to which this invention is applied has a function of hard copying characters drawn with a felt-tip pen or the like on a blackboard sheet onto recording paper, and a function of reading manuscript information and writing and displaying this manuscript information on the blackboard sheet. It also has the function of transferring the drawings on the blackboard sheet to large plain paper.

FIGS. 1A and 1B show the external structure of an electronic blackboard to which the present invention is applied. In FIGS. 1A and 1B, 1 is an electrostatic recording medium serving as a blackboard display member. As will be described in detail later, this electrostatic recording medium 1 has a chargeable dielectric film and is arranged to be endlessly transportable.

This electronic blackboard is entirely covered with a cover 2.

A window 2A is provided in the cover 2, and a portion of the electrostatic recording medium 1 is exposed through the window 2A. A portion of the cover 2 exposed through the window portion 2A is a display area DP. The electrostatic recording medium 1 on the display area DP functions as a blackboard sheet.

That is, on the electrostatic recording medium 1 on this display area DP,
Characters can be handwritten using a felt-tip pen or the like. The handwritten drawings can be erased with the eraser 3, and additions and corrections can be made easily. Also,
As will be described in detail later, a drawing based on the read document information can be displayed on the electrostatic recording medium 1 on the display area DP. Drawings based on this read manuscript information are similar to drawings drawn by hand with a felt-tip pen, etc.
It can be wiped away with Eraser 3.

The vicinity of the lower edge of the window portion 2A extends forward, and the upper surface of this forward extending portion includes a storage tray 6 for placing felt pens 5, erasers 3, etc., and a storage tray 6 for operating the electronic blackboard. An operation panel 7 is arranged.

At the same time, a recess 4 is formed on the upper surface of this forward extending portion, and an image scanner 8 for inputting document information is removably attached to this recess 4.

Below the cover 2, there is provided a printout outlet 10 through which, for example, A4 size recording paper 9 is discharged, and a printout outlet 12 through which, for example, Al size transfer paper 11 is discharged. From the outlet 10,
A recording paper with a hard copy of the drawing on the electrostatic recording medium 1 on the display area DP is discharged. A transfer paper on which the drawing on the electrostatic recording medium 1 is transferred to the same size is discharged from the discharge port 12.

Furthermore, legs 14 to which casters 13 are attached are fixed to the lower end of the cover 12, so that the electronic blackboard can be moved freely.

FIG. 1A shows the state when the image scanner 8 is attached. When the image scanner 8 is attached,
As shown in FIG. 1A, the image scanner 8 is located at a position that is most easily accessible to the person using the electronic whiteboard. In addition, a felt ben 5 is attached to the part where the image 0-discanner 8 is attached.
Since the storage tray 6 for storing the paper, eraser 3, etc. and the operation panel 7 for operating the electronic whiteboard are arranged side by side, inputting a paper document into the image scanner 8 can be easily performed.

FIG. 1B shows the state when the image scanner 8 is detached. Note that when the image scanner 8 is detached, the electronic blackboard main body and the image scanner 8 are connected with the cable 18. As shown in FIG. 1B, when the image scanner 8 is detached, the original 16 on the desk 15 located at a distance from the main body of the electronic blackboard can be input. Further, as shown in FIG. 1B, when the image scanner 8 is removed, a book manuscript 17 can be input.

The attachment/detachment mechanism of the image scanner 8 will be described in detail.

FIG. 2 shows the attachment/detachment mechanism of the image scanner 8. In FIG. 2, the recess 4 is connected to the image scanner 8.
The shape corresponds to the external shape of.

1. Protrusions 21A and 21B are provided on the side walls 4A and 4B of the recess 4, respectively. Furthermore, a connector 22 is disposed on the side wall 4C of the recess 4. The bottom wall of the recess 4 has a groove 23.
23 is formed.

On the other hand, grooves 31 are provided at the rear ends of both sides of the image scanner 8.
A and 31B (Fig. 3) are provided respectively, and the groove portion 31
In A and 31B, papal protrusions 32A and 32B are protruded. As shown in FIG. 4, leaf springs 3 are installed at positions corresponding to the grooves 31A and 31B on both sides of the image scanner 80.
3A and 33B are respectively arranged, and this plate spring 33A
and 33B, the papal projections 32A and 32B are urged outward, respectively. Furthermore, legs 35, 35, . . . are provided on the bottom surface of the image scanner 8, as shown in FIG. As shown in FIG. 3, a connector 34 is provided on the rear side of the image scanner 8.

When attaching the image scanner 8 to the electronic whiteboard body,
The image scanner 8 is placed in the recess 4 and moved in the direction of arrow A. Then, the grooves 31A and 31B of the image scanner 28 align with the protrusions 21A and 21B of the recess 4.
1B. In addition, the legs 35 of the image scanner 8
．． 35... are fitted into the grooves 23, 23 of the recess 4. Then, when the image scanner 8 is moved in the direction of arrow A, the spherical protrusions 32A and 32B in the grooves 31A and 31B
passes over the protrusions 21A and 21B of the recess 4. As a result, the image scanner 8 is locked within the recess 4.

At this time, the connector 34 on the rear side of the image scanner 8 and the connector 22 on the side wall 4C of the recess 4 are connected.

When removing the image scanner 8 from the electronic blackboard main body, the image scanner 8 inside the recess 4 is pulled out in the direction of arrow B. As a result, the lock by the spherical protrusions 32A and 32B is released, and the connector 34 and the connector 22 are separated.

The image scanner 8 includes a scanner body 41 and a hand scanner section 42. Hand scanner section 42
is detachable from the scanner body 41, and the hand scanner section 42 and the scanner body 41 are connected via a cable 43, as shown in FIG.

When reading a paper document, the paper document 46 is placed on the document placement section 44 so that the leading edge of the paper document 46 is in the document insertion section 45, as shown in FIG.

This paper original 46 is transported by a feeding mechanism within the scanner main body 41.

While the paper original 46 is being transported, the paper original 46
information is read.

When reading a book manuscript, as shown in Figure 6,
The hand scanner section 42 is removed. Then, the user moves the hand scanner section 42 while pressing it onto the book document 47. As a result, the information on the book manuscript 47 is read.

Next, the internal configuration of this electronic blackboard will be explained in detail.

FIG. 7 shows the internal configuration of this electronic blackboard.

In FIG. 7, an electrostatic recording medium 1 as a blackboard display member
is arranged to be endlessly transportable via a feed motor 52 and a drive roller 53.

4 As shown in FIG. 8, this electrostatic recording medium 1 is made by laminating white conductive polyurethane with an adhesive on a base IA made of polyethylene terephthalate (PET) to form a conductive layer IB. A dielectric layer 1C is formed by similarly laminating transparent polyvinylidene fluoride (PVDF) on the conductive JilB. An adhesive layer IE is provided between each layer. In this case, the surface of this dielectric layer IC becomes the writing surface W. Note that, as shown in FIG. 9, a hard coat layer IF may be provided on the dielectric layer IC. Providing such a hard coat layer IF increases durability and improves erasability of the felt pen.

In conventional electrostatic recording, the surface of the dielectric layer IC is required to have a roughness of 53 or more (surface roughness of 5 μm), but it is necessary to make the surface of the dielectric layer IC smoother (for example, about 18 μm).
However, it has been confirmed through experiments that good recording can be made.

In FIG. 7, an electrostatic recording head 56 consisting of a write electrode or stylus electrode 54 and a control type pentagonal pole 55 is arranged opposite to the electrostatic recording medium 1. As shown in FIG. Further, a static eliminating roller 57, cleaning blades 58A and 58B, and a cleaning brush 59 are provided. Further, a CCD line sensor 61 including a lens system 60 and a reflecting mirror 62 are provided. Further, a developing device 63 that supplies toner is provided.

A fixing flash lamp 64A for semi-fixing the toner on the electrostatic recording medium 1 is provided on the front side of the electrostatic recording medium 1.

Below the electronic blackboard, there is a winding frame 72 that holds the roll paper P, and a transfer roller 73 that presses the paper P sent out from the winding frame 72 side onto the developing surface of the electrostatic recording medium 1.
a transfer corotron 74 corresponding to the pressure bonding part of the paper P;
Fixing flash lamp 64B and paper cutter 7
A transfer mechanism 71 consisting of 5 is provided.

When this electronic blackboard is normally used, characters are written on the writing surface W on the surface of the electrostatic recording medium 1 in the display area DA with a felt-tip pen or the like. When making a hard copy of the drawing written on the electrostatic recording medium 1, the electrostatic recording medium 1 is transported in the direction of arrow C by the feed motor 52 and the drive roller 53, and is moved from the display area of the electrostatic recording medium 1. The part that was on A is moved to the back side.

Then, the drawing written on the electrostatic recording medium 1 is read by the CCD line sensor 61 via the reflection mirror 62 and the lens system 60. The read output of the CCD line sensor 61 is sent to a printer (not shown). In the printer, the image read by the CCD line sensor 60 is recorded on a recording paper by xerography or the like, and this recording paper is discharged from the discharge port 10 (FIG. 1). As a result, the drawings on the electrostatic recording medium 1 are hard-copied onto a predetermined recording paper.

When displaying a read original on the electrostatic recording medium 1, the image scanner 8 reads the original.

The read output of this image scanner 8 is the recording head 5.
6, and the recording head 56 records the electrostatic recording medium 1.
An electrostatic latent image screen based on the read document is recorded on the writing surface W on the front surface of the document. Electrostatic Recording 7 The recording medium 1 is transported in the direction of arrow C by the feed motor 52 and drive roller 53. During this transfer, the toner from the developing device 63 is attached to the charged portion of the electrostatic recording medium 1 .

As a result, a visible image (toner image) based on the read original appears on the electrostatic recording medium 1. Furthermore, during the transfer, the toner attached to the charged portion is semi-fixed onto the electrostatic recording medium 1 by the fixing flash lamp 64A.

Note that the semi-fixed state means that the toner on the electrostatic recording medium 1 is not wiped off by touching it with your hand or clothes, but the toner on the electrostatic recording medium 1 is
The fixing state is such that the toner on the electrostatic recording medium 1 can be easily wiped off by using the toner.

During transfer, an electrostatic latent image screen is recorded by the recording head 56 on the writing surface W on the surface of the electrostatic recording medium 1 . The electrostatic recording medium 1 is transported in the direction of arrow C by a feed motor 52 and a drive roller 53. During this transfer, the toner from the developing device 63 is attached to the charged portion of the electrostatic recording medium 1 .

When recording an electrostatic latent image on the electrostatic recording medium 1, the toner image is made to be a mirror image. This is because unless the toner image is made into a mirror image, the transferred image will be reversed. The electrostatic recording medium 1 with toner attached to the charged portion is pressed against the pulled-out roll paper P by the transfer roller 73. Then, the transfer corotron 74 transfers the toner image from the electrostatic recording medium 1 side to the vapor P side. After the toner image is transferred, the toner image is completely fixed on the paper P by absorption of radiant heat caused by light emission from the fixing flash lamp 64B. This paper P has outlet 1
2 (FIG. 1) and cut at a predetermined position by a paper cutter 75. As a result, the electrostatic recording medium 1
The developed image is transferred at the same size and a large hard copy is obtained.

Note that the image size at the time of transfer can be made longer than the length of the display area DP. Therefore, it is possible to create banners, etc. Further, the input image can be arbitrarily enlarged/reduced and displayed on the electrostatic recording medium 1. Therefore, the image size at the time of transfer can also be set arbitrarily.

〔Effect of the invention〕

According to this invention, the image scanner 8 for reading document information is detachably attached to the electronic blackboard main body.

Since the image scanner 8 is removable, it is possible to input a manuscript located away from the electronic blackboard or to input a book manuscript. Furthermore, if the image scanner 8 is attached, when the electronic blackboard is used stand-alone, the input operation of document information becomes easier, and the image scanner 8 does not get in the way.

[Brief Description of the Drawings] Figures 1A and 1B are perspective views showing the external configuration of an embodiment of the present invention, and Figure 2 is used to explain the image scanner attachment/detachment mechanism in an embodiment of the invention. FIG. 3 is a perspective view of an image scanner according to an embodiment of the present invention, FIG. 4 is a bottom-part sectional view of an image scanner according to an embodiment of the present invention, and FIGS. 5 and 6 are a perspective view of an image scanner according to an embodiment of the present invention. A perspective view used to explain the use of an image scanner in an embodiment, FIG. 7 is a perspective view showing the internal configuration of an embodiment of the present invention, and FIG. 8 is a cross-sectional view of an example of an electrostatic recording medium.
FIG. 9 is a sectional view of another example of an electrostatic recording medium. FIG. 10 is a perspective view showing an external configuration of an example of a conventional electronic whiteboard, and FIG. 11 is a perspective view showing an internal configuration of an example of a conventional electronic blackboard. Explanation of main symbols in the drawings 1: Electrostatic recording medium, 4: Recessed portion. 21A, 21B: protrusion, 31A. 32A, 328: Spheroidal process. 1B: Groove

Claims (1)

[Claims] A blackboard sheet having a chargeable dielectric film, a means for inputting document information, a charging means for charging the input document information on the blackboard sheet to form a latent image, and adsorbing or semi-fixing toner on the latent image. Alternatively, an electronic whiteboard comprising a developing means for fixing, wherein the means for inputting the original information is detachable.