JPH0351193Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a blackboard copying machine that forms images of characters, figures, etc. written on a blackboard-like display member (white resin sheet) on paper.

[Prior art]

Conventionally, characters, figures, etc. written on a blackboard at meetings, lectures, etc. have been transcribed into notebooks. However, in order to prevent trouble and errors during transcription, an image forming apparatus that can directly copy characters written on a blackboard-like display member has been proposed. For example, a desired image such as letters is written on a movable display member having multiple pages using a felt-tip pen that can be erased later, and the image on this display member is then formed on transfer paper using an optical system or the like. be.

[Problems with conventional technology]

However, in the above-mentioned image forming apparatus, for example, when creating tables or graphs with different contents using the same frame, the same frame must be filled in each time the table or graph is created. It was impossible.

In addition, as a way to omit this time-consuming work, there are some methods in which the frames of frequently used tables and graphs are printed in advance on the display material with non-erasable ink, etc. The page will be dedicated to that table or graph, and other characters (that do not use the frame of the table or graph),
It becomes unusable for writing figures, etc.

[Purpose of invention]

In view of the above-mentioned drawbacks of the conventional technology, the present invention makes it possible to use multiple types of images that do not want to be erased (for example, a frame of a table), and furthermore, it is possible to use a desired image (for example, a table frame) for one page of images that do not want to be erased. An object of the present invention is to provide a blackboard copying machine that allows users to write on (the contents of) a plurality of times.

[Key points of the idea]

In order to achieve the above object, the present invention includes a transparent display member that can be written on and erased, a member that is placed on the back side of the display member and has a format printed thereon, and an image written on the display member. A blackboard copying machine having a conversion means for photoelectric conversion, further comprising an image memory storing an image corresponding to the format, a composition means for combining the output of the conversion means and the output of the image memory, and a recording means, The present invention is characterized in that when the content written on the display member and the format are combined and copied, the recording means records the output of the combining means.

[Example of idea]

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

FIG. 2 is a perspective view of the blackboard copying machine of the present invention.
In the figure, the blackboard copying machine 1 of the present invention is composed of a board section (blackboard section) 2, a recording section 7, and leg sections 4a and 4b.
a, 4b.

The board section 2 includes a housing 5, a board sheet 3a that is visible through a large opening 5a in the front of the housing 5,
and an operation display section 6 provided in the housing 5. The board sheet 3a is made of a transparent sheet, and by operating a predetermined switch on the operation display section 6, a movement mechanism for the board sheet 3a, which will be described later, is controlled, and the board sheet 3a is arbitrarily moved in the direction of the arrow. be able to.

The recording section 7 is disposed at the rear of the board section 2, and a paper discharge tray 8 is provided below the recording section 7, on which paper on which the image on the board sheet 3a is recorded (copied) is loaded.

FIG. 1 shows a sectional view of the above-mentioned blackboard copying machine, and shows a moving mechanism for a board sheet 3a and a sheet member 3b, which will be described later.

Board sheet 3a, take-up rollers 9a, 10
a, it is moved by a moving mechanism composed of feed rollers 11a to 11c. For example, board sheet 3a
For winding, the board sheet 3a, which has been wound many times around the winding roller 10a, is transferred to the feeding rollers 11a to 11.
This is done by winding it onto the winding roller 9a via the winding roller 9a. Conversely, rewinding is performed by the take-up roller 10.
This is done by winding it around a. Such winding and unwinding of the board sheet 3a is normally performed when moving the board sheet 3a and when reading written characters, figures, etc.

For example, when writing characters, figures, etc. on the board sheet 3a, the writing is performed on the board sheet 3a through the opening 5a of the casing 5 described above. At this time, characters, figures, etc. are written on the board sheet 3a without bending the board sheet 3a (and the sheet member 3b) by the backup board 12 provided corresponding to the opening 5a. Further, when characters, figures, etc. written on the board sheet 3a are read out, the light from the exposure lamp 14 is irradiated onto the white plate 13 provided between the feed rollers 11a and 11b. However, on this white board 13, there is a board sheet 3a on which images such as characters and figures are written.
is passing through, the light irradiated towards the white plate 13 is blocked by the image of the board sheet 3a, and the reflected light from the part of the white plate 13 that does not correspond to the image passes through the imaging element array (lens) 15. The light enters the photoelectric conversion element array 16 through the photoelectric conversion element array 16. The light that has entered the photoelectric conversion element array 16 in this manner is read by a circuit that will be described later.

On the other hand, a sheet member 3b is also arranged inside the board sheet 3a. This sheet member 3b is formed on a white sheet in the format shown in FIG. 3 (table frame 17, graph frame 18, etc.).
image is printed. This sheet member 3b can also move in the same direction as the board sheet 3a. This movement is performed by winding rollers 9b and 10b provided at both ends of the sheet member 3b. Moreover, this sheet member 3b and board sheet 3
During the movement of a, the board sheet 3a and the sheet member 3
In order to prevent the sheet member 3b and the backup board 12 from rubbing against each other strongly, the backup board 12 is connected to the dotted line 1 in FIG.
As shown by 2', it is moved rearward by a mechanism not shown.

This movement of the sheet member 3b is performed by operating a switch provided in the operating section 6 that is different from the switch for moving the board sheet 3a described above. Therefore, the sheet member 3b and the board sheet 3a can be moved separately.

FIG. 5 is a circuit block diagram of a blackboard copying machine having such a mechanical configuration. In order to move the board sheet 3a and the sheet member 3b as described above,
When the switch is operated, a control signal is output from the operation display section 6 to the control circuit 19. Control circuit 19
Then, according to the input control signal, the mechanism drive section 2
0, outputs a drive signal, a page signal, and an image reading signal to the format memory 21 and image reading section 22.

For example, when a drive signal for moving the sheet member 3b is output from the control circuit 19 to the mechanism drive unit 20, the mechanism drive unit 20 follows this drive signal.
The sheet member 3b is moved by driving the winding roller 9b or 10b. At this time, control signals are also sequentially output from the mechanism drive section 20 to the control circuit 19.
This control signal is, for example, a page detection signal when a mark sensor (not shown) detects a mark provided on each page of the sheet member 3b. When the control circuit 19 receives this page detection signal, it outputs a drive stop signal to the mechanism drive unit 20 if the page specified on the operation display unit 6 matches the detected page.

On the other hand, from the control circuit 19 to the format memory 2
A page signal specifying the page of the sheet member 3b is output to the page 1. The format memory 21 stores each frame set (frame set 1 on the front) on the sheet member 3b.
7, graph frame 18, etc.) and its page number are stored in memory 2.
1 is the sheet member 3b specified by this page signal
The data corresponding to the frame printed on the page is outputted to the adding circuit 23 at a timing to be described later.

Further, when an image reading signal is input from the control circuit 19 to the image reading section 22, the image reading section 22 including the photoelectric conversion element array 16 described above is transferred to the board sheet 3a.
Outputs an image signal corresponding to the above image. This image signal is output to the addition circuit 23 in response to the addition signal from the control circuit 19. The adding circuit 23 adds the data from the format memory 21 and the image signal, and outputs the result to the recording section 7. That is, the adder circuit 23 combines the frame data on the sheet member 3b with the image signal of the image written on the board sheet 3a, and outputs the combined data to the recording section 7.

In the image forming apparatus having the above-described mechanical and circuit configurations, the operation of outputting characters, figures, etc. on the board sheet 3a to the recording section 7, which is the essential part of the present invention, will be described below.

First, the desired frame format printed on the sheet member 3b is exposed through the opening 5a of the housing 5 by operating the switch on the operation display section 6.
At this time, since the board sheet 3a is transparent, the desired frame assembly can be easily visually observed.

Next, based on, for example, the table frame 17 printed on the sheet member 3b, the contents of the table, such as characters, are written on the board sheet 3a to complete the table (image). On the other hand, at this time, the format memory 21
The frame set (page) of the selected sheet member 3b is instructed by the control circuit 19.

When recording the table completed as described above on paper, the take-up roller 9a is driven via the control circuit 19 by operating a copy switch (not shown), and the contents of the table such as characters on the board sheet 3a are recorded. The image is read by an image reading section 22 including a photoelectric conversion element array 16, and an image signal as a result of the reading is output to an adding circuit 23.

Image data corresponding to the frame of the already selected page is inputted to the addition circuit 23 from the format memory 21 in synchronization with the above-mentioned image signal, and the addition circuit 23 receives the above-mentioned image signal and image data. are added and output to the recording section 7.

The recording unit 7 is a printer using a thermal type or a laser beam type, and records on paper according to input data, and outputs a sheet of paper on which a composite image, which is an image according to the data of the addition result, is recorded on a paper output tray 8. discharge.

The composite image recorded at this time is exactly the same image (albeit reduced) as the completed table described above.

When the above operations are completed, the board sheet 3a has advanced by one page, and the sheet member 3b remains in the same position. Therefore, it is possible to write different contents on the next page of the board sheet 3a by using the same frame (frame 17 of the table) again. If another frame assembly is to be used at this time, the desired frame assembly may be displayed and tabulated by moving the sheet member 3b in the opening 5a.

Note that since most frames are composed of vertical lines and horizontal lines, one page's worth of image information is not stored as black and white binary data in the format memory 21, but is instead stored using a known data compression method. If the format memory 21 is stored in such a manner, the storage capacity of the format memory 21 does not need to be very large.

Further, in this embodiment, the frame etc. were printed on the sheet member 3b, but the frame etc. were printed on the backup board 12 without using the sheet member 3b, and the back-up board 12 was printed for each desired frame. It is also possible to have a configuration in which it is replaced with .

In this case, the backup board 12 may have a built-in non-volatile memory so that when the backup board is replaced, the memory is also replaced at the same time.

[Effect of idea]

As explained in detail above, according to the present invention, characters, etc. are written on a transparent board sheet based on the framework etc. written on the sheet member etc., and composite images such as tables and graphs are easily created. be able to. In addition, there is no need to write the same frames individually, and the same tabulation work can be omitted.

Furthermore, many types of frames can be used, and multiple tables with different contents can be created for one frame.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the blackboard copying machine of the present invention, Figure 2 is a perspective view of the blackboard copying machine of the present invention, Figure 3 is a configuration diagram of the sheet member, and Figure 4 is a configuration diagram of the main parts of Figure 1. , FIG. 5 is a circuit block diagram of the blackboard copying machine of the present invention. 1... Blackboard copying machine, 2... Board section, 3a...
Board sheet, 3b... sheet member, 7... recording section, 9a, 9b, 10a, 10b... winding roller, 16... photoelectric conversion element array, 17... table frame, 18... graph frame Group, 19...
Control circuit, 21... Format memory, 22...
...image reading section, 23...addition section.

Claims (1)

[Claims for Utility Model Registration] A transparent display member that can be written on and erased, a member that is placed overlappingly on the back side of the display member and has a format printed thereon, and an image written on the display member that is photoelectrically converted. A blackboard copying machine having a converting means, further comprising an image memory storing an image corresponding to the format, a synthesizing means for synthesizing an output of the converting means and an output of the image memory, and a recording means, and a recording means. A blackboard copying machine characterized in that when the written content and the format are combined and copied, the recording means records the output of the combining means.