JP2004194024A - Writing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a quality in reading a written content within a rising period of time until an elapse of given length of time after turning on a light source in a writing device, for instance, an electronic blackboard or the like. <P>SOLUTION: The electronic blackboard comprises a writing sheet 1 on which user can write, and a reading means 14 for reading the written contents on the writing sheet 1. When the written content on the reading sheet 1 is read by the reading means 14 within the rising time until the elapse of given length of time after the turning-on of the light source 15 of the reading means 14, for instance, until a minute elapses, the written content is read by a reading density thicker than the standard reading density in ordinary use, for instance, by an intermediate density between "ordinary" and "thick". <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing device that reads written content on a writing sheet by a reading unit and that can read the written content on a writing sheet by a reading unit, such as an electronic blackboard device that prints out and prints on paper by a printer.
[0002]
[Prior art]
Conventionally, in this type of writing device, for example, an electronic blackboard device includes a writing sheet that can be written, a reading unit that reads the written content on the writing sheet, a printer that prints out the written content on paper, and the like. .
[0003]
Then, when it is desired to print the written contents after writing on the writing sheet, for example, the writing sheet is read by the reading means while being conveyed, and printed out on paper by a printer.
[0004]
However, in the reading means of the electronic blackboard device, the light amount of the light source included in the reading means is, for example, the lighting time of the light source from the time of product shipment, the light-off time from when the light source is turned off to the next lighting, and the time of product shipment. However, there is a problem in that the same reading quality cannot be obtained because it does not become constant due to the fluctuation of the total lighting time of the light source.
[0005]
In order to solve such a problem, a conventional electronic blackboard device includes a technique described in Patent Document 1, for example.
[0006]
[Patent Document 1] Japanese Patent Application Laid-Open No. 2000-36894 discloses an electronic blackboard device in which a lighting time of a light source from the time of product shipment, a light-off time from when the light source is turned off to the next lighting, a product shipment. The total lighting time of the light source from the time was counted.
[0007]
When reading the written content by the reading means, the reading density is changed in accordance with the respective times described above.
[0008]
[Problems to be solved by the invention]
However, in such a conventional writing apparatus, for example, the reading density is set to “normal” which is a standard reading density at the time of normal use, and “dark” which is a reading density higher than the reading density. If the read density is "thin", which is a lighter read density than the "normal" read density, and if the read density is "dark", and the written content is read within the rise time from the time when the light source is turned on until a certain time elapses, During the rise time, since the light amount of the light source is small, there is no difference in density between the background of the writing sheet and the written content, and when a printout is performed by a printer, the printed content of the paper becomes black and the written content is black. There was a problem that could not be read.
[0009]
Accordingly, a first object of the present invention is to improve the reading quality of reading written contents within a rise time in a writing device.
[0010]
A second object of the present invention is to provide an inexpensive writing device by improving the read quality by simply setting the rising read density without optimally changing the read density according to the light amount. .
[0011]
A third object of the present invention is to set the rise time to the lighting time of the light source from the time of product shipment, the light-off time from when the light source is turned off to the next lighting, the total lighting time of the light source from the time of product shipment, and the like. It is another object of the present invention to provide an inexpensive writer by simply setting the rise time without changing the rise time and improving the read quality.
[0012]
A fourth object of the present invention is to further improve the reading quality of reading written contents.
[0013]
[Means for Solving the Problems]
Therefore, the invention described in claim 1 aims at achieving the first object.
In a writing device capable of reading written content on a writing sheet by a reading unit,
Reading the reading density at which the reading means reads the written content on the writing sheet as a rising reading density that is higher than the standard reading density during normal use within a rising time from when the light source of the reading means is turned on until a certain time elapses. It is characterized by.
[0014]
The invention described in claim 2 is to achieve the second object,
The writing device according to claim 1,
The reading densities are set to “Normal”, which is the standard reading density for normal use, “Dark”, which is higher than the reading density, and “Read”, which is lower than the “normal” reading density. "Thin"
The rising read density is set to an intermediate density between the “normal” and the “dark”.
[0015]
The invention described in claim 3 is to achieve the third object,
The writing device according to claim 1,
The rise time is set to a fixed time.
[0016]
The invention described in claim 4 is to achieve the fourth object,
The writing device according to claim 1,
The rise time is changed according to the number of times the light source has been turned on since the product was shipped.
[0017]
The invention described in claim 5 is to achieve the fourth object,
The writing device according to claim 1,
It is characterized in that the rise time is changed according to the light-off time from when the light source is turned off to when it is turned on next time.
[0018]
The invention according to claim 6 is to achieve the fourth object,
The writing device according to claim 1,
The rise time is changed according to the total lighting time of the light source from the time of product shipment.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0020]
FIG. 1 is a diagram showing a schematic configuration of an electronic blackboard device as an example of a writing device. As shown in the illustrated example, the electronic blackboard device includes an electronic blackboard main body 2, an operation unit 4, a printer 5, a stand 6, and the like.
[0021]
The electronic blackboard main body 2 faces the writing surface of one of the writing sheets 1 on which writing can be performed erasably from the frame portion 2a.
[0022]
The operation unit 4 performs various operations of the electronic blackboard device using operation keys described later.
[0023]
The printer 5 prints out the written contents written on the writing sheet 1 on paper.
[0024]
The stand 6 supports the electronic blackboard main body 2 in an upright state. In such a stand 6, a caster 7 is provided at a lower portion to make the electronic blackboard device movable. Note that the printer 5 is attached to the stand 6 by an attachment member 8.
[0025]
As shown in FIG. 2, such an electronic blackboard main body 2 includes a sheet conveying unit 19, a reading unit 14, and the like inside the frame 9 and a control unit (not shown).
[0026]
The sheet conveying means 19 includes a driving roller 11 and a driven roller 12. Between the driving roller 11 and the driven roller 12, the writing sheet 1 is wrapped around to form a first writing surface 1a and a second writing surface 1b.
[0027]
Further, a step motor, which is a drive source (not shown), is connected to the drive roller 11. On the other hand, the driven roller 12 is provided with a sheet tension mechanism (not shown) to apply tension to the writing sheet 1. Further, a screen board 13 is provided on the back side of the first writing surface 1a.
[0028]
Further, at the back of the writing sheet 1, there is provided a reading unit 14 that reads the written contents written on the first writing surface 1 a and the second writing surface 1 b at the reading position P. The reading means 14 includes a light source 15, a mirror 16, a lens 17, and a CCD 18 which is a photoelectric converter.
[0029]
Incidentally, the operation unit 4 is configured in detail as shown in FIG. That is, the operation unit 4 includes a power key 22 for turning on / off the power of the electronic blackboard device, a feed key 23 for feeding the writing sheet 1, a return key 24 for returning the writing sheet 1, and a head of the printer 5. A cleaning key 25 for cleaning, a density key 26 for changing the reading density, a mode key 27 for changing a copy mode such as reducing two pages to be described later, a number key 28 for changing the number of copies, a copy key 29 for starting printing. And a plurality of operation keys such as a copy stop key 30 for interrupting copying. When the power key 22 is turned on, the reading density is set to "normal" which is a standard reading density in normal use, the copy mode is set to standard, and the number of copies is set to one.
[0030]
In addition, the operation unit 4 controls the reading density by the power LED 31 which is lit when the power is ON, the error LED 32 which is lit when an error such as a paper jam occurs, the cleaning LED 33 which is lit during the cleaning operation, and the density key 26. A dark LED 34 that is lit when the reading density is set to “dark”, which is higher than the “normal” reading density, and a light that is turned on when the reading density is set to “light”, which is lower than the “normal” reading density An LED 35, an additional LED 36 that is turned on when an additional copy is set by the mode key 27, and a two-page consolidation in which two pages of the first writing surface 1a and the second writing surface 1b are reduced and copied onto one sheet. A two-page integrated LED 37 that lights up when set, and a segment LED 3 that changes and displays numbers from 1 to 9 each time the number key 28 is pressed And a plurality of LED, such as.
[0031]
FIG. 4 is a block diagram of the control means 45 provided in the electronic whiteboard main body 2. The control means 45 includes, for example, a main control board 45a, and the main control board 45a is provided with a CPU 41, a gate array 42, a RAM 44, and a ROM 43.
[0032]
The CPU 41 is a central processing unit, and the gate array 42 controls input and output of signals when the CPU 41 sends signals to the electronic blackboard device. The ROM 43 stores various programs for controlling the electronic blackboard device, and the RAM 44 stores the contents written by the reading unit 14.
[0033]
Note that the CPU 41 includes a line counter that counts the reading area of the writing sheet 1 as the number of lines. More specifically, the line counter is configured such that the CPU 41 receives a signal transmitted from the gate array 42 at regular intervals, counts the number of lines set in the writing sheet 1 based on the signal, and This is for grasping the reading area. For example, the length of the first writing surface 1a is set to 2215 lines.
[0034]
When using the electronic blackboard apparatus configured as described above, the user presses the power key 22 of the operation unit 4 in FIG. 3 to turn on the power, turns on the power LED 31, and turns on the light source 15 shown in FIG. Light. Next, pictures, characters, and the like are written on the first writing surface 1a in FIG. 1 using a pen (not shown).
[0035]
When the first writing surface 1a is full, the feed key 23 is pressed, the writing sheet 1 is fed, the second writing surface 1b is exposed, and pictures and characters are continuously written. Then, when it is desired to view the contents of the first writing surface 1a, the return key 24 is pressed, the writing sheet 1 is returned, and the first writing surface 1a is exposed.
[0036]
Next, in order to read and print the written content on the first writing surface 1a, the copy key 29 is pressed on the operation unit 4 in FIG. As described above, when the power key 22 is turned on, the reading density is set to "normal", the copy mode is set to standard, and the number of copies is set to one. Press the mode key 27 to change the copy mode, and press the number key 28 to change the number of copies as necessary, and then press the copy key 29.
[0037]
Then, in FIG. 5, a signal transmitted from the operation unit 4 notifies the CPU 41 of the start of copying. As a result, in FIG. 2, a stepping motor (not shown) rotates the drive roller 11 to convey the writing sheet 1 in the direction of arrow a, and sequentially passes through the reading position P from the leading end of the first writing surface 1a. The reading means 14 sequentially reads the written contents of the first writing surface 1a, and in FIG. 5, the written contents are stored in the RAM 44, and then transmitted to the printer 5 to be printed out on paper, thereby making a copy.
[0038]
When an error occurs in such an electronic blackboard device, the error LED 32 is turned on to warn the user.
[0039]
Next, in such an electronic blackboard device, an example of a flow from power-on will be described with reference to FIG. 6, and an example of a flow from standby time will be described with reference to FIG.
[0040]
First, in the case shown in FIG. 6, the power key 22 of the electronic blackboard device is pressed to turn on the power. Then, as described above, the light source 15 shown in FIG. 2 is turned on, and the reading density is set to “normal”.
[0041]
On the other hand, in the case shown in FIG. 7, the electronic blackboard device is configured such that the feed key 23, the return key 24, the cleaning key 25, the density key 26, the mode key 27, the number key 28, When neither the copy key 29 nor the copy stop key 30 is pressed, the light source 15 shown in FIG.
[0042]
In the electronic blackboard device in the state shown in FIG. 6 or FIG. 7, in S1 and S11, it is determined whether any operation key is pressed. If the operation key is pressed and there is an input, the process proceeds to S2 and S12. On the other hand, if there is no input without pressing any of the operation keys, the process waits until the operation key is pressed.
[0043]
In S2 and S12, it is determined whether or not the operation key pressed in S1 and S11 is the copy key 29. If it is not the copy key 29, the process proceeds to S3 / S13 to process the input content based on the type of the pressed operation key, and waits until the next operation key is pressed. For example, when the density key 26 is pressed, the setting of the reading density is set to “dark”, and the process waits until the next operation key is pressed. On the other hand, if it is the copy key 29, the process proceeds to S4 / S14.
[0044]
In S4 and S14, it is determined how much time has elapsed from the time when the light source 15 was turned on to the present, and whether or not it is within the set rise time. If it is within the rise time, the process proceeds to S5 and S15, whereas if it is not, the process proceeds to S7 and S17.
[0045]
In S5 and S15, it is determined whether the setting of the reading density is “dark”. If the setting of the reading density is “dark”, the process proceeds to S6 / S16, whereas if the setting is “normal” or “light”, the process proceeds to S7 / S17.
[0046]
In S6 and S16, the setting of the reading density is set to "rising reading density" higher than the standard reading density in normal use, and the process proceeds to S8 and S18. The “rise reading density” is, for example, a reading density that is an intermediate density between “normal” and “dark”.
[0047]
On the other hand, in S7 / S17, the process proceeds to S8 / S18 with the reading density set as set.
[0048]
In S8 and S18, the printer 5 prints out the read contents on paper (copy processing) in the same manner as described above.
[0049]
In this way, when reading the written content on the writing sheet 1 within the rising time from when the light source 15 of the reading unit 14 is turned on until a certain time elapses, the reading density is read as the rising reading density.
[0050]
Further, in the above description, an example was given in which the “reading density” is set to “reading density” when the reading density is “dark”. It is good.
[0051]
In addition, in such an electronic blackboard device, when the electronic blackboard device is made inexpensive, the rising time may be set to a fixed time, for example, 1 minute. This is because, for example, when a fluorescent lamp is used as the light source 15, the light amount of the fluorescent lamp becomes substantially stable after one minute.
[0052]
On the other hand, in order to improve the reading quality of the electronic blackboard device, the rise time may be changed in accordance with the number of times the light source 15 is turned on from the time of product shipment, or from the time the light source 15 is turned off until the next time it is turned on. May be changed according to the turning-off time of the light source 15, or may be changed according to the total lighting time of the light source 15 from the time of product shipment.
[0053]
By the way, the electronic blackboard device in the above-described example has two writing surfaces, that is, the first writing surface 1a and the second writing surface 1b on the writing sheet 1, but as shown in FIG. For example, in order to provide four writing surfaces, in addition to the first writing surface 1a and the second writing surface 1b, a total of four writing surfaces of a third writing surface 1c and a fourth writing surface 1d are provided. A surface may be provided.
[0054]
In this case, the driven rollers 51 and 52 are additionally provided according to the sheet conveying means 19, and the writing sheet 1 is folded back using these, and stored in the electronic blackboard device. In other configurations, the same components as those shown in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted.
[0055]
FIG. 9 shows the operation unit 4 provided in such an electronic blackboard device. The operation unit 4 includes, as display LEDs corresponding to the mode key 27, a four-page integrated LED 39 for copying the first to fourth writing surfaces 1a, 1b, 1c, and 1d on one sheet of paper, A four-page continuous LED 40 for continuously copying the writing surfaces 1a, 1b, 1c, 1d on four sheets is added to the one shown in FIG. In other configurations, the same components as those shown in FIG. 3 are denoted by the same reference numerals, and description thereof will be omitted.
[0056]
Although an example in which the writing surface is two or four has been described above, the present invention is not limited to this, and the writing surface may have a plurality of surfaces such as three or five. Of course it is good.
[0057]
【The invention's effect】
As described above, according to the first aspect of the present invention, the reading density at which the reading means reads the written content on the writing sheet is normally used within the rising time from when the light source of the reading means is turned on until a certain time elapses. Since the reading is performed as a rising reading density which is higher than the standard reading density at the time, the reading quality of reading the written contents within the rising time can be improved.
[0058]
According to the second aspect of the present invention, the rising reading density is an intermediate density between "normal" which is a standard reading density in normal use and "dark" which is a reading density higher than the "normal" reading density. Therefore, it is possible to simply set the rising reading density to an intermediate density between “normal” and “dark” without optimally changing the reading density in accordance with the light amount and easily set the reading density to improve the reading quality. A writing device having the effects described in Item 1 can be provided at low cost.
[0059]
According to the third aspect of the present invention, since the rise time is a fixed time, the rise time is the lighting time of the light source from the time of product shipment, the light-off time from when the light source is turned off until the next lighting, and the product shipment time. 2. A writing device having the effect according to claim 1, wherein the read quality can be improved simply by setting the rise time simply as a fixed time without changing the setting of the rise time according to the total lighting time of the light source from the time. Can be provided at low cost.
[0060]
According to the fourth aspect of the invention, the rise time is changed according to the number of times the light source has been turned on from the time of product shipment. Therefore, the rise time is finely changed according to the number of times the light source is turned on. The quality can be further improved.
[0061]
According to the invention according to claim 5, since the rise time is changed according to the light-off time from when the light source is turned off to when the light source is turned on next, the rise time is finely changed according to the light-off time. It is possible to further improve the reading quality of reading.
[0062]
According to the invention according to claim 6, since the rise time is changed according to the total lighting time of the light source from the time of product shipment, the rise time is finely changed according to the total lighting time of the light source. The reading quality of reading can be further improved.
[Brief description of the drawings]
FIG. 1 is a front view of a writing device according to the present invention.
FIG. 2 is a schematic cross-sectional view of the writing device.
FIG. 3 is a plan view of an operation unit provided in the writing device.
FIG. 4 is a configuration block diagram of a main control board included in the writing device.
FIG. 5 is a block diagram of a control circuit included in the writing device.
FIG. 6 is an example of a flowchart of the writing device.
FIG. 7 is another example of a flowchart of the writing device.
FIG. 8 is a schematic cross-sectional view of another example of the writing device according to the present invention.
FIG. 9 is a plan view of an operation unit provided in the writing device.
[Explanation of symbols]
1 writing sheet 14 reading means 15 light source 26 density key

Claims (6)

In a writing device that can read the written content on a writing sheet by reading means,
Within a rising time from when the light source of the reading unit is turned on until a certain time elapses, the reading density at which the reading unit reads the written content on the writing sheet is set as a rising reading density that is higher than the standard reading density during normal use. A writing device characterized by reading. The setting of the reading density is set to a standard reading density in normal use, "normal", a reading density higher than the reading density, "dark", and a reading density lower than the "normal" reading density. There are three stages of "thin",
2. The writing apparatus according to claim 1, wherein the rising reading density is an intermediate density between "normal" and "dark". The writing device according to claim 1, wherein the rise time is a fixed time. 2. The writing device according to claim 1, wherein the rise time is changed according to the number of times the light source has been turned on since the time of product shipment. 2. The writing device according to claim 1, wherein the rise time is changed according to a light-off time from when the light source is turned off to when it is turned on next time. The writing device according to claim 1, wherein the rise time is changed according to a total lighting time of the light source from the time of product shipment.

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