JP2000301886A - Electronic white board device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the workability of a device even when much time is required for transferring data to a printer by controlling the starting of the movement of a screen sheet to an arbitrary direction by inputting a sheet feeding key or the like under the state that the starting is executed after the finish of the reading at an optical reading part even under the condition that the printer is under printing. SOLUTION: An electronic white board device is constituted by reading an image information written in the writing surface S of a screen sheet 15 at an optical reading part 14 during the motion of the screen sheet 15 so as to electrically process the image information read at the optical reading part 14 and, after that, print it with a printer 18 on a paper. The arbitrary start of the movement of the screen sheet 15 is controlled after the reading of the image information at the optical reading device of this electronic white board device and under the printing of the image information with the printer. In this case, the arbitrary stopping of the movement of the screen sheet 15 can be preferably controlled and the continuous movement until the finish of the movement of the screen sheet 15 is preferable even when printing comes to an end.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic blackboard apparatus having a printer for printing image information written on a writing surface of a screen sheet on paper, and more particularly to an electronic blackboard apparatus having a plain paper printer.

[0002]

2. Description of the Related Art In recent years, in an electronic blackboard device, as a printer for printing image information written on a writing surface of a screen sheet, printing quality is higher than that of a thermal printer, and it is possible to directly print on plain paper excellent in storability. Many printers using simple plain paper printers have been developed.

An electronic blackboard device using this plain paper printer reads image information written on a writing surface of a screen sheet by an optical reading section while moving the screen sheet. Then, the optical signal is photoelectrically converted into an electric signal, subjected to electric processing such as scaling, and then transferred to a printer, and the printer prints image information on paper based on the information.

[0004]

The electronic blackboard device using the above-mentioned conventional plain paper printer is superior in terms of print quality and the like as compared with the one using a thermal printer, but has the disadvantage of transferring data to the printer. It was taking time.

For this reason, the time for printing the image information by the printer is longer than the time for reading the image information by the optical reading section. The start of reading image information by the optical reading unit and the start of printing by the printer are almost simultaneous,
Reading of image information by the optical reading unit has always been completed before printing by the printer.

That is, the movement of the screen sheet for reading the image information has been completed during the printing operation of the printer. When the screen sheet, which has been read and stopped, is to be moved again to confirm the contents written on the writing surface, the user has to wait until the printing operation by the printer is completed.

[0007] However, in meetings using the electronic blackboard device, it is common practice to move the screen sheet in addition to reading, in order to confirm, add, or delete the contents written on the writing surface. The above problems hindered the smooth progress of the meeting.

Therefore, the present invention provides an operation for arbitrarily moving a screen sheet without waiting for the end of printing, even when image information written on a writing surface of the screen sheet is printed by a plain paper printer. It is an object to provide an electronic blackboard device with high reliability.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem. That is, when the reference numerals in the attached drawings are added in parentheses, the present invention provides:
The image information written on the writing surface (S) of the screen sheet (15) is read by the optical reading unit (14) while moving the screen sheet (15), and the optical reading unit (14)
In the electronic blackboard device for electrically processing the image information read by the printer and printing it on paper by the printer (18), after the image information is read by the optical reading unit (14),
An electronic blackboard device characterized in that the screen sheet (15) is controlled to be able to start moving arbitrarily during printing of image information by the printer (18).

At this time, it is preferable to control so that the movement of the screen sheet (15) can be stopped arbitrarily.

Further, even when the printing of the image information by the printer (18) is completed during the movement of the screen sheet (15), the screen sheet (15) can be continuously moved until the movement of the screen sheet (15) is completed. It is preferable to control as follows.

[0012]

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

FIG. 2 is an external perspective view of an electronic blackboard device according to the present invention, and FIG. 3 is a diagram showing an outline of an internal mechanism thereof as viewed from above.

This electronic blackboard device, as shown in FIG.
A slightly horizontal rectangular flat blackboard body 10 is movably supported by a stand 11 with casters.

The blackboard main body 10 has a front window 13a at its front side.
Is provided, and a part of a screen sheet 15 to be described later is exposed from the front window 13a to form a writing surface S there.

On the blackboard main body 10, an operation panel 16 is provided on one side edge of the window frame 13, and an elongated pen tray 17 is provided along a lower edge of the window frame 13. Furthermore, the blackboard body 10
A printer 18 such as an ink jet printer is attached to the lower right side of the printer. Here, as shown in FIG. 5, the operation panel 16 includes a copy start key 1, a sheet feed key 3, a sheet return key 2, and the like.

As shown in FIG. 3, the main body 10 of the blackboard is provided with a drive roller 20 and driven rollers 21 to 23 on both right and left sides thereof, and these roller shafts are rotatable by upper and lower frames (not shown). To support. In addition, roller 20
An endless screen sheet 15 is stretched between the upper and lower frames 21, the writing surface S is backed by a back plate 24, and the whole is supported by a rectangular frame-shaped base frame 12.

Further, the blackboard main body 10 is provided with an optical reading section 14 behind the screen sheet 15. The optical reading unit 14 includes a fluorescent lamp 25, a mirror 26, a lens 27, a CC
D28 and the like.

When the above-described electronic blackboard device is used, a marker pen is used as a writing instrument, and characters or graphics are written on the writing surface S using the marker pen.

When making a copy of the written contents,
The copy start key 1 on the operation panel 16 shown in FIG. Then, the drive motor 29 (not shown) is driven, and the drive roller 20 rotates. Accordingly, the screen sheet 15 is conveyed while the driven rollers 21 to 23 are also driven and rotated.

Then, the screen sheet 15 is irradiated with light from the fluorescent lamp 25 of the optical reading unit 14, the reflected light is reflected by a mirror 26, transmitted through a lens 27, and passed through a CCD 28.
Focus on the top and read the written content. And CC
The electrical signal after the photoelectric conversion in D28 is transferred to the printer 18 and the recording paper is discharged while recording the content on the paper stored in the printer 18.

On the other hand, when erasing the written content, the writing content is wiped off by wiping the writing surface S with an eraser (not shown).

When the screen sheet 15 is moved in the forward direction separately from the above-described copying, the sheet feed key 3 on the operation panel 16 shown in FIG. 5 is operated. On the other hand, when moving the screen sheet 15 in the opposite direction,
The user operates the sheet return key 2 on the operation panel 16 shown in FIG.

FIG. 4 is a block diagram showing a schematic electrical configuration. The CPU 7 mainly includes a data processing unit and a control unit, and controls the entire apparatus according to a program stored in the ROM 5.

Referring to FIG. 4, data transfer to the printer 18 will be described. First, when the copy start key 1 of the operation panel 16 is operated, the control unit of the CPU 7 instructs the gate array 8 to start reading and printing, and the drive motor moves the screen sheet 15 to the reading start position.

Then, the image information read by the optical reading unit 14 is sent to the gate array 8, and the information is processed by the data processing unit, held in the RAM 6, and further sent to the printer 18 for printing. Start.

Next, the control operation of the electronic blackboard device according to the present invention will be described with reference to FIG. The flowchart shown in FIG. 1 is an interruption routine that operates at fixed time intervals, separately from the main routine based on the normal key input for copying described above.

When this interrupt routine is started, first, it is checked whether all other keys including the copy start key 1 on the operation panel 16, for example, the copy density key and the copy number setting key, are operated. (S1 in FIG. 1). If the key input has not been performed, the process returns. If the key input has been performed, it is checked whether printing has been performed by the printer 18 (S2 in FIG. 4).

If printing is not being performed, normal key input processing (S4 in the same figure), for example, processing such as a copy density key and a copy number setting key is performed, and the process returns (S13 in the same figure). On the other hand, if printing is in progress, it is checked whether reading (scanning) of image information by the optical reading unit 14 has been completed (S3 in FIG. 3).

If the scanning is not completed, the process returns as it is. If the scanning is completed, the sheet feed key 3
Is checked (S5 in the figure).

If the sheet feed key 3 has been input, it is checked whether or not the screen sheet 15 has stopped (S6 in the figure). If the screen sheet 15 is stopped, the screen sheet 15 starts to move in the forward direction according to the key input (S8 in the same figure). If the screen sheet 15 is not stopped, the screen sheet 15 is stopped (the same). S9 in the figure).

On the other hand, if the sheet feed key 3 has not been input (S5 in the figure), it is checked whether the sheet return key 2 has been input (S7 in the figure).

Then, if the sheet return key 2 has been input, it is checked whether the screen sheet 15 has stopped (S10 in the figure). If the screen sheet 15 is stopped, the movement of the screen sheet 15 in the reverse direction is started according to the key input (S11 in the same figure). If the screen sheet 15 is not stopped, the screen sheet 15 is stopped.
Is stopped (S12 in the figure).

On the other hand, if the sheet return key 2 has not been input (S10 in the figure), the process returns.

In the electronic blackboard apparatus having such a control, even when printing is being performed by the printer 18, if the reading by the optical reading section 14 is completed, the sheet feed key 3 or the sheet return key 2 is operated. By inputting, it is possible to start moving the screen sheet 15 in an arbitrary direction (S2 to S11 in FIG. 1).

Further, by inputting the sheet feed key 3 or the sheet return key 2 again to the screen sheet 15 moving in this manner, it can be stopped at an arbitrary position (S9 in FIG. 1). Or S11).

Further, the screen sheet 15 moving in this way, even if the printing by the printer 18 is completed during the movement, the movement of one writing surface of the screen sheet 15 is completed. (Step S13 in FIG. 1).

In the illustrated example, after checking whether or not scanning has been completed (S3 in FIG. 1), the sheet feed key 3
(S5 in the same figure) and the presence / absence of the sheet return key 2 (S7 in the figure) are controlled in this order. Control may be performed in the order of (S7 in the drawing) and presence / absence of input of the sheet feed key 3 (S5 in the drawing).

[0039]

According to the first aspect of the present invention, even when printing is being performed by the printer, after reading by the optical reading unit is completed, a sheet feed key or a sheet return key can be input. The screen sheet can be started to move in any direction, so even if it takes time to transfer data to the printer, the screen sheet can be moved without waiting for the printer to finish printing. It is possible to provide an electronic blackboard device having high printing quality and good printing quality.

According to the second aspect of the present invention, the control can be stopped at an arbitrary position by inputting the sheet feed key or the sheet return key again to the moving screen sheet. Provides an electronic blackboard device with high workability and good print quality that can stop the moving screen sheet without waiting for the printer to finish printing, even if data transfer to the printer takes time. can do.

According to the third aspect of the present invention, the moving screen sheet is controlled to continue moving until the movement is completed even if the printing by the printer is completed during the movement. Therefore, it is possible to provide an electronic blackboard device with high workability and good print quality that can surely end the movement of the screen sheet regardless of whether or not the printer has finished printing.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a control operation of the electronic whiteboard device of the present invention.

FIG. 2 is an external perspective view of the blackboard main body.

FIG. 3 is a schematic configuration diagram showing an internal mechanism of the blackboard main body as viewed from above.

FIG. 4 is a block diagram showing an electrical schematic configuration thereof.

FIG. 5 is a schematic front view of the operation panel.

[Explanation of symbols]

 1 Copy start key 2 Sheet return key 3 Sheet feed key 5 ROM 6 RAM 7 CPU 8 Gate array 10 Blackboard body 11 Stand 12 Base frame 14 Optical reading unit 13 Window frame 13a Front window 15 Screen sheet 16 Operation panel 17 Pen tray 18 Printer 20 -23 roller 24 back plate 25 fluorescent lamp 26 mirror 27 lens 28 CCD S writing surface

Claims (3)

[Claims] An image reading unit reads image information written on a writing surface of a screen sheet by an optical reading unit while moving the screen sheet, and electrically processes the image information read by the optical reading unit. In an electronic blackboard device for printing on paper, after the image information is read by the optical reading unit and while the image information is being printed by the printer, control is performed so that the screen sheet can be arbitrarily started to move. An electronic blackboard device, comprising: 2. The electronic blackboard device according to claim 1, wherein the movement of the screen sheet is controlled to be arbitrarily stopped. 3. The method according to claim 2, wherein, even when printing of the image information by the printer is completed while the screen sheet is being moved, the screen sheet is continuously moved until the movement of the screen sheet is completed. The electronic blackboard device according to claim 1 or 2, wherein: