JPH0710638B2 - Electronic blackboard - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic blackboard provided with a feeding means for moving a writing medium and an alignment means for positioning the writing medium at a fixed position.

[Conventional technology]

There is known an electronic blackboard that performs reading and printing in a printer unit while relatively moving a writing medium supported by a medium support and a reading unit that reads an item written on the writing medium by a drive source. ing.

[Problems to be solved by the invention]

When using a large electronic blackboard, there were problems that the upper one was out of reach, and the lower one was too low to write. In addition, when the writing medium is long in the left and right, the writer has to move while moving in the left and right.

Therefore, the purpose of the present invention is to appropriately move the writing medium to
An object of the present invention is to provide an electronic blackboard that can always write at a position where it is easy to write and can easily start reading and printing from a certain position even if the writing medium moves to an arbitrary position.

[Means for solving problems]

In the electronic blackboard of the present invention, the feeding means for operating the drive source for relatively moving the writing medium and the reading unit, and the drive source for operating the writing medium at a fixed position are operated by the reading unit. A printing unit for reading and printing by the printer unit is provided.

[Action]

The feed means can be operated by operating the feed key to move the portion to be written on the writing medium to a position where it is easy to write, and the printing means can be operated by the print key operation to position the writing medium at a fixed position. Then, by causing the reading unit to perform the reading and the printer unit to perform the printing, even if the writing medium is moved to an arbitrary position, the reading and the printing from a certain position can be started.

〔Example〕

 An example of the present invention will be described below.

FIG. 1 is an external view of an electronic blackboard. In FIG. 1, reference numeral 1 is a medium support body in which a square frame 1b is attached to a movable support leg 1a. Square frame 1b
A sheet-shaped writing medium 2 is supported by the. The writing medium 2 has a loop shape, and is suspended on upper and lower guide shafts 3 and 4 which are provided in parallel with each other as shown in FIGS. 2 and 3. The upper guide shaft 3 is rotated by a pulse motor 5 as a drive source, and the writing medium 2 can be moved in the vertical direction by the rotation of the guide shaft 3.

A reading unit 6 is provided behind the writing medium 2 as shown in FIG. 3, and a printer unit 7 is provided on the back side of the corner frame 1b.

As shown in FIGS. 2 and 3, the reading unit 6 includes a writing medium 2 that moves at a constant speed, and a writing medium 2 that is laterally elongated by a light emitter 8.
A light beam having a width corresponding to the full width of is reflected at a certain angle, and the reflected light is further reflected by a mirror 9, guided to a photoelectric converter (CCD) 12 through a slit 10 and a lens 11, and written on a writing medium 2. The above items are optically read and output to the printer unit 7 as an electric signal. The reading unit 6 operates only while the print key 13 is operated and the pulse motor 5 operates to move the recording medium 2 upward as viewed from the back side at a constant speed by a constant amount (half rotation).

On the other hand, the printing unit 7 is, for example, a thermal printer having a thermal head 14, receives a read signal from the photoelectric converter 12, draws out a sheet 16 from a paper holder 15 and supplies the sheet 16 to the thermal head 14, where printing is performed. After that, the cutter 17 is operated to discharge the printed paper 16 of a certain size to the paper receiver 18 provided at the lower part of the rectangular frame 1b.

In addition, this electronic blackboard has up or down feed keys 19, 20
The feed means for operating the pulse motor 5 by a predetermined amount by the key operation (see FIGS. 4 and 5) and the key operation of the alignment key 22 (see FIGS. 4 and 5) can be used to move to an arbitrary position. The positioning means for operating the pulse motor 5 to position the writing medium 2 moving to a fixed position (home position) and the writing medium 2 moving to an arbitrary position to the fixed position. There is provided a printing unit that operates the pulse motor 5 and subsequently causes the reading unit 6 to perform reading and printing by the printer unit 7. The feeding means is composed of a microprocessor 31 and a motor drive circuit 32 which will be described later, the alignment means and the printing means are alignment marks 25 which will be described later, a photo sensor 26 for detecting the alignment marks 25, and a microprocessor 31.
It is composed of a motor drive circuit 32 (see FIG. 6).

On the surface of the writing medium 2, as shown in FIG.
Are marked at two locations (only one location is shown) at equal intervals, and further two alignment marks 25 are marked at equal intervals. Then, on the support 1 side, a photo sensor 26 for detecting the alignment mark 25 at the position behind the writing medium 2 is provided (third part).
(See the drawing), one of the alignment marks 25 is detected by the photo sensor 26 when any one of the framing portions 24 matches the corner frame 1b.

The print key 13, the upper feed key 19, the lower feed key 20
The alignment keys 22 are arranged in a line on the corner frame 1b of the medium support 1 as shown in FIG. In addition to these keys, the power indicator lamp (LED) 27 and error indicator lamp (L)
ED) 28 is also placed. Further, as shown in FIG. 1, a power switch 29 is arranged below the rectangular frame 1b, and a tool holder 30 for holding a writing tool or an eraser is attached to one side surface portion of the medium support 1.

FIG. 5 shows a control system of the electronic blackboard. The print key 13, the positioning key 22, the upper feed key 19, the lower feed key 20 and the photo sensor 26 are connected to the microprocessor 31 including ROM and RAM. Has been done. The pulse motor 5 is connected to the microprocessor 31 via a motor drive circuit 32. Then, the printer unit 7
Is connected to the reading unit 6 via an interface 33 controlled by a microprocessor 31.

Next, the operation will be described with reference to FIG.

First, the power switch 29 is turned on to perform the initial operation, the pulse motor 5 reversely rotates by a predetermined amount and then starts to rotate normally, and when the photosensor 26 detects the alignment mark 25, the pulse motor 5 stops.

Here, when the downward feed key 20 is pressed, the motor 5 rotates in the positive direction one pulse at a time to move the writing medium 2 downward, but when the downward feed key 20 is released, the motor 5 stops ( Sending means).

Similarly, when the upper feed key 19 is pressed, the motor 5 rotates in the opposite direction by one pulse to move the writing medium 2 upward, but when the upper feed key 19 is released, the motor 5 stops ( Sending means).

Therefore, the writer can perform writing while appropriately operating the upper and lower feed keys 19 and 20 to move the portion to be written on the writing medium 2 to a height at which writing is easy.

When the user finishes writing in this way and wants to return the writing surface to the initial position, the alignment key 22 may be pressed. Alignment key 22
When is pressed, the motor 5 rotates in the positive direction one pulse at a time, and the alignment mark 25 attached to the writing medium 2 moves to the photo sensor 26.
When detected by, the motor 5 is stopped (positioning means).

If the user wishes to print the written matters on the recording medium 2, he or she may press the print key 13. Print key 13
When is pressed, the motor 5 is rotated by one pulse in the positive direction, and when the writing medium 2 is positioned at the initial position, the alignment mark 25 attached to the writing medium 2 is detected by the photosensor 26. From that point on, the motor 5 further rotates a predetermined amount forward, and when the starting end position of the writing medium 2 to be printed reaches the luminous flux irradiation position of the light emitter 8, the photoelectric converter (CCD) 12 is turned on and the reading is performed. The read signal from the unit 6 is transferred to the printer unit 7. Therefore, the printing operation is performed in the printer unit 7, and the motor 5 rotates the writing medium 2 in the forward rotation by one pulse. When the photo sensor 26 detects the next alignment mark 25, the printing operation ends, and the printed paper 6 cut into a predetermined size by the cutter 17 is discharged to the paper receiver 18 (printing means). In the printer unit 7, after the printing operation is completed and the cutter 17 is operated, the paper 6 is returned by a predetermined amount to prepare for the next printing operation.

With the above configuration, when the writing surface of the writing medium 2 is large in the vertical direction and cannot be reached to the upper side, the down feed key 20 is pressed and the writing start position of the writing medium 2 is lowered to an appropriate height. It is better to start writing, and if it is difficult to write because the lower part is too low, it is preferable to press the upper feed key 19 to raise the writing start position of the writing medium 2 to an appropriate height and then start writing.

When the position alignment key 22 is pressed when the writing on the writing surface is completed in this way, the writing medium 2 is correctly positioned at the initial position.

Further, even if the writing medium 2 is moved to an arbitrary position by operating the lower feed key 20 or the upper feed key 19, when the print key 13 is pressed, the writing medium is automatically positioned at the initial position and then read. The reading by the unit 6 and the printing by the printer unit 7 are started.

The present invention is not limited to the above embodiment.
For example, in the above-mentioned embodiment, the writing medium 2 is moved in both up and down directions, but the writing medium 2 may be moved and adjusted in only one direction. Further, when the writing surface is long in the horizontal direction, it may be moved in the left-right direction. Further, the present invention can be applied to an electronic blackboard of the type in which the light emitting device of the reading unit 6 is moved to perform reading.

〔The invention's effect〕

As described above in detail, according to the present invention, by the print key operation, the writing medium supported by the medium support and the reading unit for reading the item written on the writing medium are relatively moved by the drive source. In the electronic blackboard where the reading section reads the items on the writing medium and the printing section prints,
A feed means for operating the drive source to move the writing medium by operating the feed key, and a drive source for operating the writing medium to position the writing medium by the print key operation, followed by reading by the reading unit and printing by the printer unit. The present invention is characterized in that it is provided with a printing means for performing the writing operation. With this, the writing medium can be appropriately moved and operated, and the writing medium can always be written at a position where it is easy to write, and the writing medium can be moved to any position. Even if it does, the effect that the reading and printing from a fixed position can be easily started is obtained.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an external perspective view of an electronic blackboard, FIG. 2 is a front view showing the inside of a medium support without a writing medium on the blackboard, and FIG. FIG. 4 is a cross-sectional view showing the inside of the medium support of the blackboard, FIG. 4 is a view showing an operating section provided on the blackboard, FIG. 5 is a block diagram showing a control system of the blackboard, and FIG. 6 is an operation of the blackboard. 2 is a flowchart showing 1 ... Medium support, 2 ... Writing medium, 5 ... Pulse motor (driving source), 6 ... Read section, 7 ... Printer section, 13
...... Print key, 19 ...... Upward feed key, 20 ...... Downward feed key, 22 ...... Alignment key, 25 ...... Alignment mark,
26 ... Photo sensor, 31 ... Microprocessor, 32 ...
… Motor drive circuit.

Claims (2)

[Claims] 1. A print key is operated to relatively move a writing medium supported by a medium support and a reading unit for reading an item written on the writing medium by a driving source.
In the electronic blackboard where the reading unit reads the matter on the writing medium and the printer unit prints, a feeding unit that operates the drive source to move the writing medium by a feed key operation, and the print key operation, An electronic blackboard comprising: a printing unit that operates the drive source to position the writing medium at a fixed position, and then causes the reading unit to perform reading and the printer unit to print. 2. A print key is operated to relatively move a writing medium supported by a medium support and a reading unit for reading an item written on the writing medium by a driving source.
In the electronic blackboard where the reading unit reads the matter on the writing medium and the printer unit prints, a feeding unit that operates the drive source to move the writing medium by a feed key operation, and the print key operation, In order to position the writing medium at a fixed position by operating the drive source to position the writing medium at a fixed position, subsequently performing reading by the reading unit and printing by the printer unit, and an alignment key operation. An electronic blackboard comprising: a positioning unit that operates the drive source.