JPS60254176A - Recording type black board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a recording blackboard, and more particularly to a recording blackboard that allows one screen to be printed out from any position on the writing surface.

((1) Background of the technology There is a recording type blackboard that can print out information written on a roll-type entry surface, such as an electrical circuit diagram.In such a blackboard, the printed screen is placed in a specified position. In addition, due to the nature of the entry screen, it may be required that it can be printed out from any arbitrary position.

However, conventional recording type blackboards have a structure that cannot meet such requirements.

(c) Prior art and problems: In the conventional recording type blackboard, markers i2a are attached to each screen on the roll type writing surface 12 as shown in FIG. 1(a).
The screen advance of the roll-type entry surface is performed in units of one screen according to the markers. Therefore, as shown in FIG. 3(b), printing could only be done for each screen regulated by markers.

Object of the Invention The present invention has been made in view of the above-mentioned drawbacks of conventional recording type blackboards, and its purpose is to provide a recording type blackboard in which the printout start position can be arbitrarily set. .

(E) Structure of the Invention In order to achieve this object, the recording type blackboard according to the first invention of the present invention comprises: - a sheet on which markers are marked on each screen; and a drive for driving the rolled sheet through a writing section. mechanism and
a printing mechanism having an optical reading section for reading the contents written on the sheet; a means for generating a print request signal at an arbitrary position on the sheet; and a means for responding to the print request signal and the marker reading output of the optical reading section. and means for controlling the drive mechanism and the printing mechanism so as to produce a printout for one screen,
The recording type blackboard according to the second invention includes: - a sheet with markers attached to each screen, a drive mechanism that drives the sheet through a writing section, an optical reading section that reads the written contents of the sheet, and a screen. a printing mechanism having a memory; means for generating a print request signal at an arbitrary position on the sheet; and responding to the print request signal, a marker reading output of the optical reading section, and a one-screen storage completion signal to the screen memory. and a means for controlling the drive mechanism and the printing mechanism so as to produce a printout for one screen.

(-) Embodiments of the Invention The present invention will now be described in detail with reference to the accompanying drawings.

FIG. 2 shows the main structure of an embodiment of the first aspect of the present invention, and FIG. 3 is a diagram showing details of the components shown in FIG. 2 and their relationships. In FIG. 2, reference numeral 1 denotes a print request signal generating means, the output of which is connected to the ON inputs of the print mechanism 2 and drive mechanism 3, one input of an AND gate 4, and the non-inhibit input of an AND gate 5 having an inhibit input. ing. Reference numeral 6 denotes a marker detection section to be described later, and its output is connected to the other input of the AND gate 4, the inhibit input of the AND gate 5, and the down count input of the down counter 8. The down counter 8 has a setting input 8A that receives the output of the AND gate 4 and sets the count value to 1'', and a cent input 8B that receives the output of the AND gate 5 and sets the count value to 2''. The down counter 8 generates an off signal the moment its count value reaches 0'', and its output is connected to the off inputs of the print mechanism 2 and drive mechanism 3.

FIG. 3 shows details of the printing mechanism 2, and in this figure, 10 is an optical reading section in which the marker detection section 6 described above is built. 11 is a roll sheet 12 (
This sheet surface is white and there are - 12 markers per screen.
A (see Figure 4) is attached. ) is a line that sends a timing signal generated when the optical reader 10 starts reading the entry contents to the memory address counter 13. The memory address counter 13 supplies its count value, ie, the address, to the screen memory 14, and its maximum count value, ie, the one screen storage complete signal, is connected to the off input of the optical reader 10 via a line 15. The data output of optical reader 10 is connected via line 16 to screen memory 14. This screen memory 14 has a storage capacity that can store one screen. The screen memory 14
The output of is connected to a printer 17.

The operation of the embodiment of the present invention having such a configuration will be explained.

An operator who wishes to print out the screen entered on the roll sheet 12 sends the print request signal generating means 1
Assume that the print request signal is generated by activating the print request signal. In response to this signal, the print mechanism 2 and drive mechanism 3 begin to operate. At this time, the marker detection unit 6 detects the roll sheet 12
If the marker 12A is detected, "1" is entered in the down counter 8. And roll sheet 1
2 is caused to pass under the optical reading section IO by the drive mechanism 3. At the initial stage, the memory address counter 13 is set to the initial state by a timing signal generated on the line 11, and from that counting state, the count value of the counter 13, which is incremented at a predetermined timing, reaches the specified address of the screen memory 14. , screen data sent from the optical reading section 10 via the line 16 are stored one after another. When the next marker is detected by the marker detection unit 6, that is, when one screen worth of data has been read and printed out, an off signal is generated from the down counter 8 in response to the rising edge of the marker signal. Print mechanism 2 and drive mechanism 3 are stopped.

Furthermore, if the print request signal is generated at position Po of the roll sheet 12 (see FIG. 4), in this case, the print mechanism 2 and drive mechanism 3 immediately start operating as described above, but when the marker is detected 2" is entered in the down counter 8. Therefore, when the next marker detected rises, the down counter 8 is incremented.
Since the count value of is only set to "1", both the print mechanism 2 and the drive mechanism 3 continue their operations.

Meanwhile, the data from the optical reading section IO continues to be stored in the image memory 14 in the same manner as described above, and
When one screen worth of data has been stored into the optical reading section 1o, the optical reading section 1o is turned off. Also, the image memory 14
The image data is supplied to the printer 17 and converted into a hard copy. Therefore, as shown in Fig. 4, it is possible to produce a printout of one screen starting from any position on the roll sheet (see (4-2') in Fig. 4).
.

When the next marker 12A is detected, an off signal is generated from the down counter 8 and the print mechanism 2
And the drive mechanism 3 is stopped.

FIG. 5 shows an embodiment of the second invention of the present invention, in which the output line 15 of the memory address counter 13 shown in FIG. Since this embodiment is the same as the first embodiment of the invention except that it is connected to, the same reference numerals will be given to the same components and the explanation thereof will be omitted.

By adopting the above-described configuration, it is possible to print out one screen from any arbitrary position, and at the same time, it is possible to stop the printing mechanism 2 and the drive mechanism 3 at the end position of the screen.

Note that the part corresponding to the down counter used in the above embodiment can be replaced by an up counter, a circuit that outputs a value to be compared with the count value of the up counter in response to the outputs of the AND gates 4 and 5, and a comparison circuit. You can also.

Also, although we have explained an example in which the side of the sheet is white, it may be of any other color, and it can be printed from a color printer by image processing such as leaving only the written contents in the written color and making the background white. The present invention can also be applied to the case of printing out, or to the case of printing out from a printer after performing image processing such as making the written contents black and the background white.

(Effects of the Invention) As described above, according to the present invention, it is possible not only to print out one screen from a marker, but also to print out one screen from an arbitrary position.

[Brief explanation of the drawing]

Fig. 1 shows an example of writing (1-1) and an example of printing (1-2) on a conventional recording type blackboard, and Fig. 2 shows the main structure of an embodiment of the first invention of the present invention. Fig. 3 is a detailed view of the printing mechanism shown in Fig. 2, and Fig. 4 is a detailed view of the printing mechanism shown in Fig. 1.
FIG. 5 is a diagram showing a main part configuration of an embodiment of the second invention of the present invention. . In the figure, 1 is a print request signal generation means, 2 is a print mechanism, 3 is a drive mechanism, 4 and 5 are AND gates, 6 is a marker detection section, 8 is a down counter, 10 is an optical reading section, and 13 is a memory address counter, 14 is screen memory,
17 is a printer. Patent Applicant Fujitsu Limited Agent Patent Attorney Calibration Hiroshi Part 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (2)

[Claims] (1) - A print mechanism having a sheet with markers attached to each screen, a drive mechanism that drives the sheet through a writing section, an optical reading section that reads the written contents of the sheet, and an arbitrary means for generating a print request signal at the position; and means for controlling the drive mechanism and the print mechanism to produce a printout for one screen in response to the print request signal and the marker reading output of the optical reader; A recording type blackboard characterized by comprising: (2) - A sheet with markers attached to each screen, a drive mechanism that drives the sheet through a writing section, a printing mechanism that has a screen memory and an optical reading section that reads the written contents of the sheet, and the sheet. means for generating a print request signal at an arbitrary position of the screen, and printout for one screen in response to the print request signal, a marker reading output of the optical reading section, and a one screen storage completion signal in the screen memory. 1. A recording type blackboard comprising: means for controlling the drive mechanism and the printing mechanism so as to produce a printed image.