JP4573318B2 - Screen type sheet writing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a screen-type sheet writing device such as an electronic blackboard device having a writing surface, such as a stand support type, a wall-hanging type, or a desktop type. The present invention relates to a screen type sheet writing apparatus capable of correcting the case.
[0002]
[Prior art]
In this type of sheet writing apparatus, an endless screen type sheet member is passed between a driving roller and a driven roller in a casing having a display window, and the driving roller is driven by a stepping motor to circulate the sheet member. However, it is unavoidable that the stop position is deviated from the reference position at this time due to variations in the product and changes over time due to use.
[0003]
[Problems to be solved by the invention]
Conventionally, since there was no function to correct the amount of misalignment, a mark was placed on the sheet member and the frame of the display window at the time of manufacture adjustment or maintenance by a service person, and the sheet member is displayed on one screen (writing surface). It was necessary to feed one round at a time by hand, measure the amount of deviation using a measuring instrument such as a scale, and correct it with a dip switch according to the amount of deviation. In this case, it is necessary to adjust the combination of ON / OFF of a plurality of dip switches to the setting of the reference pulse after adjustment, which is troublesome.
[0004]
SUMMARY OF THE INVENTION Accordingly, a first object of the present invention is to make it possible to easily inspect and correct a stop position of a sheet member, thereby shortening an inspection time at the time of manufacturing or the like.
[0005]
The second object is to enable the reference position stop inspection mode for inspecting and correcting the stop position of the sheet member to be started using an existing key without newly adding a dedicated key.
[0006]
The third object is to make it possible to measure the difference between the design value and the actual measurement value for the conveyance amount of one sheet of the sheet member.
[0007]
The fourth object is to enable adjustment in accordance with the actual use environment.
[0008]
The fifth object is to save the trouble of measuring the amount of deviation using a scale or the like, and to easily obtain the amount of deviation.
[0009]
The sixth object is to make it possible to correct the amount of deviation caused by the use of the user.
[0010]
The seventh object is to make it easy to correct the deviation.
[0011]
[Means for Solving the Problems]
In order to achieve the first and third to fifth objects, the invention according to claim 1 is directed to conveying an endless sheet member by a conveying device provided in the casing, and displaying the writing surface of the sheet member on the casing. In the screen type sheet writing device that faces the window,
A start key for a reference position stop inspection mode for inspecting whether or not the sheet member stops at the reference position;
In the test mode relating to the conveyance of the sheet member by the conveyance device, when the key input of the start key is made, the reference position stop inspection mode is set, and the sheet of the sheet member is determined for one screen by the conveyance device. A control unit that conveys the sheet member by number until the entire screen is completed , and
A measuring device for measuring a deviation amount of a stop position of the sheet member with respect to a reference position after completion of conveyance by the conveyance device in the reference position stop inspection mode;
It is characterized by providing.
[0012]
In order to achieve the second object, the invention according to claim 2 is the screen type sheet writing apparatus according to claim 1, wherein the reference position stop inspection mode is used as an existing key for other use as the start key . It is started by operating the key.
[0013]
The invention according to 請 Motomeko 3, the screen-type sheet writing apparatus according to claim 1 or 2, the measuring device is to scale and the reference line is provided.
[0016]
In order to achieve the sixth object, the invention according to claim 4 is the screen-type sheet writing apparatus according to any one of claims 1 to 3 , comprising a correction device for correcting the measured deviation amount. It is. According to a fifth aspect of the present invention, in the screen type sheet writing apparatus according to the fourth aspect , the number of pulses supplied to the drive source of the transport device is stepwise in the correction device by changing the on / off relationship. It is provided with switch means consisting of dip switches that change to
[0017]
In order to achieve the seventh object, the invention according to claim 6 is the screen-type sheet writing device according to claim 5 , wherein the on / off relation of the dip switch is displayed in contrast to the scale of the measuring device. It is.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view of an electronic blackboard apparatus as an example of the present invention, FIG. 2 is a cross-sectional view when the writing surface of the sheet member is two, and FIG. 3 is a cross-sectional view when there are four.
[0019]
In FIG. 1, the casing 1 of the blackboard body is provided with a display window 3 that exposes the writing surface of the sheet member 2 one by one, and an operation unit 5 is provided on one side of the front frame 4 of the display window 3. It has been.
[0020]
In FIG. 2, a guide board 6 is installed inside the display window 3, and the sheet member 2 is circulated and conveyed by the conveying device 7 along the front surface of the guide board 6 in the display window 3. . In the casing 1, the sheet member 2 is stretched between the driving roller 8 and the driven roller 9 of the conveying device 7 disposed at both ends of the guide board 6. Although not shown, a sheet tension mechanism is disposed for the driven roller 9, and a stepping motor as a drive source is disposed for the drive roller 8.
[0021]
Further, on the back side of the guide board 6, a light source (fluorescent lamp) 10, a mirror 11 and a lens 12 that read image information on the writing surface of the sheet member 2, and a CCD 13 that is an optical / electrical converter, A reading unit 14 is arranged. In addition, although not shown, in the casing 1, a printer, a power supply unit, and the like, which are recording units that record the reading information of the reading unit 14 on a sheet, are arranged.
[0022]
FIG. 3 shows a modified example. In order to make the writing surface of the sheet member 2 four, driven rollers 15 and 16 for guiding the sheet member 2 are added to the structure of FIG.
[0023]
FIG. 4 shows a schematic electrical configuration. The CPU 17 serving as a control unit controls the whole according to a program stored in a ROM (Read Only Memory) 18. The CPU 17 processes the read data read by the reading unit 14 and digitized by the gate array 19, stores it in a RAM (Random Access Memory) 20, and records it on a sheet by the printer 21.
[0024]
When the copy switch of the operation unit 5 is pressed, the CPU 17 notifies the gate array 19 of the start of copying. A stepping motor (not shown) is pulse-driven, and the sheet member 2 is conveyed in the direction of arrow a in FIG. 2, and when it reaches the reading start position, image information is read as an electrical signal from the reading unit 14 and sent to the gate array 19. , Processed by the CPU 17 and recorded on the paper by the printer 21.
[0025]
The CPU 17 presses an existing key on the operation unit 5 to inspect the electronic blackboard apparatus in a reference position stop inspection mode, that is, whether a sheet member 2 described later stops at a reference position, and corrects the correction. Enable test mode.
[0026]
FIG. 5 is an example of a main control board that controls the entire electronic blackboard. On this substrate, in addition to the CPU 17, gate array 19, ROM 18, and RAM 20, a switch unit 22 of a correction device that corrects the shift amount of the stop position of the sheet member 2 by the conveying device 7 is mounted. This switch means may be a dip switch (DipSW), a rotary switch, or the like.
[0027]
FIG. 6 is a diagram in which a measuring device 23 that measures the amount of deviation of the stop position of the sheet member 2 is mounted on the lower frame 4 b in accordance with the corner portion 4 a of the display window 3. In the measuring device 23, for example, a scale 24 is divided at intervals of 5 mm, and a reference line 24a indicated by an arrow is provided on the scale 24.
[0028]
On the lower side of the scale 24, the on / off relationship of, for example, three dip switches (DipSW) as the switch means 22 is displayed in a contrasting manner. In the display, for example, in the case of the reference position 24a, for example, DipSW1 = OFF, DipSW2 = ON, and DipSW3 = ON are set for three dip switches. By changing the on / off relationship of these dip switches, the number of pulses supplied to the stepping motor, which is the driving source, of the transport device 7 changes stepwise. The number of pulses is set by software.
[0029]
When the stop position of the sheet member 2 is inspected, a mark 25 that can be erased with a marker pen or the like is provided at a position corresponding to the reference position on the sheet member 2. From this state, an existing key on the operation unit 5 is pressed to start the reference position stop inspection mode, the sheet member 2 is conveyed by the conveying device 7, and the mark 25 at the time when the feeding of the entire screen is automatically completed is a scale. See where you stopped on 24. When stopping at substantially the same position as the reference line 24a, the three dip switches are set to DipSW1 = OFF, DipSW2 = ON, and DipSW3 = ON.
[0030]
Similarly, after the reference position stop inspection mode is finished, three dip switches are set according to the ON / OFF notation written below each scale 24 close to the stopped position.
[0031]
FIG. 7 shows an example of the operation unit 5. The operation unit 5 selects a power switch 26 for turning on / off the power, a feed switch 27 for conveying a sheet member, a density switch 28 for adjusting a reading density, and a copy mode as switches to be turned on by pressing a key. A copy mode switch 29, a cleaning switch 30 for eliminating clogging of the head of the ink jet printer, a number switch 31 for setting the number of copies, and a copy switch 32 for starting copying are provided. In addition, a power LED 33 that indicates that the power is on and an error LED 34 that indicates the occurrence of a paper jam or the like are provided for lighting the status.
[0032]
In the operation unit 5, when the density switch 28 is pressed and the dark LED 35 is lit, reading is performed with a high density, and when the thin LED 36 is lit, reading is performed with a low density. Further, when the copy mode switch 29 is pressed and the additional mode LED 37 is lit, it indicates that the previously copied one is copied. When the two-page aggregation mode LED 38 is lit, two screens are A4 size. Indicates to be copied on one sheet. Further, the number LED 39 changes the number from 1 to 9 every time the number switch 31 is pressed.
[0033]
FIG. 8 is a flowchart for correcting the stop position of the sheet member 2 in the test mode. After the power switch 26 is turned on and various initializations are performed, it is determined in step Sl whether to shift to the test mode or the normal mode. If the test mode flag is OFF, normal processing in step S9 is performed.
[0034]
If the test mode flag is ON, the test mode is entered. The process proceeds to step S2 which is a test mode state, and key input is checked. If there is no key input, the key input check is repeated until there is a key input. If there is a key input, the process proceeds to step S3. If the input key is not the start key for the reference position stop inspection mode, the processing corresponding to each key input in step S4 is performed, and the key input is checked again in step S2.
[0035]
When the input key is the start key for the reference position stop inspection mode, the process proceeds to step S5, the number of pulses of the design value for one screen of the sheet member 2 is set by software, and the sheet member 2 is driven (step S6).
[0036]
Next, proceeding to step S7, it is checked whether the conveyance of one screen has been completed. If not finished, check repeatedly until finished. When the transfer of one screen is completed, the process proceeds to step S8 to check whether the transfer of the entire screen is completed. If the conveyance has not ended, the number of pulses of the design value for one screen of the sheet member 2 in step S5 is set, and the process is repeated until the entire screen is completed.
[0037]
When the entire screen has been transported, the key input check in step S2 is performed again.
The test mode itself is effective until the power is turned off, and is repeated in step S2, which is a key input check.
[0038]
As described above, since the reference position stop inspection mode is started after the test mode is set, a key for starting the reference position stop inspection mode is used as the key for starting the reference position stop inspection mode without using a dedicated key. it can. In that case, the following modes can be considered as the start of the reference position stop inspection mode.
[0039]
(1) Press any one key once.
(2) Press any one key for a certain time.
(3) Two keys such as the feed key, density key, mode key and cleaning key are simultaneously pressed once.
(4) Two keys such as a feed key, a density key, a mode key, and a cleaning key are simultaneously pressed for a predetermined time.
[0040]
【The invention's effect】
As described above, according to the present invention, the start key of the reference position stopping inspection mode for inspecting whether to stop the sheet over preparative member reference position, in the test mode related conveyance of the sheet member by the conveying device In some cases, when there is a key input of the start key, the control unit enters the reference position stop inspection mode and transports the sheet member with a fixed number of pulses for one screen by the transport device, and the reference position stop Since the apparatus includes a measuring device that measures the amount of deviation of the stop position of the sheet member with respect to the reference position after completion of conveyance by the conveyance device in the inspection mode, inspection time during manufacturing or the like can be shortened.
[0041]
According to the second aspect of the present invention, since the reference position stop inspection mode is started by pressing an existing key, it is not necessary to newly provide a dedicated key, and the cost can be reduced.
[0042]
According to the first aspect of the present invention, in the reference position stop inspection mode, the sheet member is conveyed with a fixed number of pulses for one screen, so that the difference between the design value and the actual measurement value can be measured.
[0043]
According to the invention of claim 1, the transport by the fixed number of pulses of one frame so repeat until the entire screen has been completed, it can be adjusted in line with the actual use environment.
[0044]
According to the invention of claim 1, also, because with a measuring device for measuring the deviation amount, it eliminates the need for measuring the time shift amount to measure the displacement amount using a scale or the like, the shift amount obtaining Can be easily obtained.
[0045]
According to the inventions according to claims 4 and 5 , since the correction device for correcting the measured deviation amount is provided, the deviation amount caused by the use of the user can be corrected.
[0046]
According to the sixth aspect of the invention, since the on / off relationship of the dip switch is displayed in contrast to the scale of the measuring device, correction for the shift amount can be easily performed.
[Brief description of the drawings]
FIG. 1 is a front view showing an electronic blackboard device according to an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view thereof.
FIG. 3 is a schematic cross-sectional view showing a modified example thereof.
FIG. 4 is a configuration block diagram showing the electrical connection.
FIG. 5 is a configuration block diagram showing the control unit;
FIG. 6 is an enlarged front view of the measuring device.
FIG. 7 is an enlarged front view of the operation unit.
FIG. 8 is a flowchart showing the operation.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Casing 2 Sheet | seat member 3 Display window 4 Front side frame part 4a Corner part 4b Lower frame 5 Operation part 6 Guide board 7 Conveying device 8 Drive roller 9 Followed roller 10 Light source 11 Mirror 12 Lens 13 CCD
14 Reading Unit 15 Driven Roller 16 Driven Roller 17 CPU
18 ROM
19 Gate array 20 RAM
21 Printer 22 Switch means 23 Measuring device 24 Scale 24a Reference line 25 Mark 26 Power switch 27 Feed switch 28 Density switch 29 Copy mode switch 30 Cleaning switch 31 Number switch 32 Copy switch 33 Power LED
34 Error LED
35 Dark LED
36 Thin LED
37 Additional mode LED
38 2-page aggregation mode LED
39 Number LED

Claims (6)

In a screen-type sheet writing apparatus that conveys an endless sheet member with a conveying device provided in the casing and faces the writing surface of the sheet member on the display window of the casing,
A start key for a reference position stop inspection mode for inspecting whether or not the sheet member stops at the reference position;
In the test mode relating to the conveyance of the sheet member by the conveyance device, when the key input of the start key is made, the reference position stop inspection mode is set, and the sheet of the sheet member is determined for one screen by the conveyance device. A control unit that conveys the sheet member by number until the entire screen is completed , and
A measuring device for measuring a deviation amount of a stop position of the sheet member with respect to a reference position after completion of conveyance by the conveyance device in the reference position stop inspection mode;
A screen type sheet writing apparatus comprising:   2. The screen type sheet writing apparatus according to claim 1, wherein the reference position stop inspection mode is started by operating an existing key which is also used as another application as the start key.   The screen-type sheet writing apparatus according to claim 1, wherein a scale and a reference line are provided in the measuring device. Characterized by comprising a correction device for correcting the measured shift amount, a screen-type sheet writing apparatus according to any one of claims 1 to 3. Wherein the correction device, characterized by comprising switch means the number of pulses supplied to the driving source of the conveying device is composed of a dip switch that changes stepwise by varying the on-off relationship, to claim 4 The screen-type sheet writing apparatus as described. 6. The screen type sheet writing apparatus according to claim 5 , wherein an on / off relation of the dip switch is displayed in contrast to the scale of the measuring apparatus.

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