JPS5960227A - Pen recorder - Google Patents

Abstract

PURPOSE:To make it possible to prevent the interruption of recording, by sequentially subtracting the amount of movement of recording paper for recording from the length of the recording paper, which is set in a recorder and known in advance, and displaying the subtracted value. CONSTITUTION:The length of recording paper, which is set in a recorder, is known in advance. The length is set in a remaining length setting part 11. The preset remaining length value is stored in a memory 14 through a central processing unit 13. The moving speed of the recording paper 9 is determined by the pulses, which are obtained by dividing the frequency of clock pulses from a clock oscillator 20 by the central processing unit 13. Therefore, the number of pulses, which are sent to an output port 17, corresponds to the moving length of the recording paper 9. Based on the number of the pulses, the moving amount of the recording paper 9 is computed by the central processing unit 13, set in the remaining length setting part 11, and subtracted from the remaining length stored in the memory 14. The result is sent to a display 23 through an output port 19. As a result, interruption of the recording can be prevented in advance.

Description

[Detailed description of the invention] This invention relates to a pen recorder.

As is well known, a pen recorder uses a pen that is driven in response to an input signal to record tC on a conveyed recording paper. Biff+ is used to use recording paper. No matter which type of recording paper is used, the recording paper is stored inside the case of the recording IT, the leading edge of the recording paper is pulled out and recorded with a pen as described above, and after recording, the recording paper is ejected from the leading edge of the unit out of the case. It is designed to be wound up one after another on a winding device inside a case.

Since the recording paper is stored inside the case in advance in this way, it is impossible to detect the length of the unrecorded portion of the recording paper, that is, the remaining length, from outside the case during the recording process. Therefore, even if the remaining length is 1, when recording is performed continuously over a long period of time, the recording paper runs out midway through the recording, and the measurement must be interrupted. Something like this can happen.

Up to now, a method for determining the amount of remaining paper length has not yet been proposed, and the length of the remaining paper is known in advance.

C. Detect the terminal with an appropriate detector or place an end mark near the final terminal and visually check it (
It only serves to produce moxibustion. However, with such a detection means, it is not possible to confirm the remaining length before starting recording or during recording. If the remaining length t: can be confirmed, by changing the paper advance speed, etc., the desired recording can be made in the middle of the process according to the gummy length 'i,). ．． You will be able to do +, ;: lines without li.

This invention 1r, t ti,: An object of the present invention is to make it possible to always recognize the length of the portion of recording paper that has not been filled with dIj, that is, the remaining length f, 4- even in the middle of completion.

Since the length of recording paper to be set in the recorder is known in advance, this invention sequentially subtracts the transport Jlt to be transferred for BL recording from that length and displays the subtraction 1γi11 ( The 11th sign is what you did.

An embodiment of this invention will be explained with reference to the drawings. 1 is an input control, and the information to be recorded here is given. given to.

Two-voinoe 4+1,3 is illn;;4,
The main width of the pen is adjusted by the servo motor 6 and the servo motor 6, and the pen is driven by the servo motor 6. The rotational position of the servo motor A is also detected by the detector 7, and its detection A174
passes through the comparator 4 and becomes negative y+:', El. Therefore, the servo motor 6 rotates by the amount corresponding to the input signal.

These structures are not particularly different from conventional ones. 8 is a pen driven by the servo motor 6;
9Vi recording paper, 10 is a feeding motor (/(toe) (nistep motor).

11r, j Remaining length )・1 set fzb11.Always use Zino I.
If it is possible to determine the remaining length 1, 1 even in the middle of the recording sheet, you may set the 912 length of the record A'((), not only when setting the length. .

12t, j performance 1) - A microcomputer comprising 4'1η of processing means, and a central processing Jψ device 13. Memory (RAM
) 14 , Memory (1?OM ) 15 , Input point 16 . Output ports 17 to 19 and a clock t#'j for oscillating clock pulses are generated by a device 20 and the like. Remaining length J,; Remaining length i set in set part 11
jt according to the program in memory 15, Chuo Yu II
! 3.V device id, 13”;r: Memory 1 via
It is stored in 4. 21 data bus.

The transport speed of the recording paper 9 is determined by pulses obtained by uniformly dividing the clock pulse from the clock oscillator 20 by the central processing unit 16. This pulse is sent from the output boat 17 to the driver 22, where it is suitably amplified and sent to the motor 10. If the motor 10 is a svup motor, j・lj according to the pulse frequency from the driver 22,
Rotate in the opposite direction. Therefore, the number t of pulses sent to the output boat 17 corresponds to the transfer length of the recording paper 9 by 2'-J. From this number of pulses, is it fjL record A? of, t'
The place J゛P for calculating h-J〈 is the central IHB device 16.
, and the operation 3γ result is set in the residual Li 11t set unit 11, and the operation of subtracting from the residual J
is executed. The result obtained by subtracting the transfer length of the recording paper from the residual phrase is sent from the output port 19 to the display 26, where it is displayed as a 0 character. As the recording paper 9 is transported, the value displayed on the display 26 gradually decreases, but the displayed value indicates the length of the remaining portion 11 of the recording paper 9, that is, the unrecorded portion. It will be easily understood from the above explanation.

1. If the remaining length of the recording paper 9 based on the calculation result described above is less than a certain value.1. When the minimum value is zero, the central processing unit 13 determines this and sends a signal to the driver 24 via the output port 18. The driver 24 receives this signal and outputs an output, which for example lights up a warning display 25 or operates a buzzer 26 to indicate that the remaining length of the recording paper 9 is running low. In other words, it is reported that 7A length I, '1 is gone. Alternatively, the contact point 27 may be turned on to notify a remote location and interrupt the measurement or study recording.

As mentioned above, according to the present invention, al
-h During the O, process, the remaining long hand of the recording paper is always displayed, so do you want to record subsequent recordings according to the remaining long hand? Therefore, in the middle of iLi recording, n [2 recording paper remaining length j, 1 becomes 6; 1
) The effect that can stop h is added to A1.

[Brief explanation of drawings]

The figure is to this effect, bright :', : b* (;This is a block or 7 diagram showing 11. 1,,,,,input Y+i, i child, 3-++-to servo!, 4') s 8 - *. ,. Pen, so. 0. . [:f し'S, tr A generation, 10.
. . 0. Feeding motor, 11 +++. , remaining length; 11
Seventh part, 12,,,,,performance 3 (j processing device 13,,
,,. Central processing J+, lj device i', i,, 14,. . ,. Memory for remaining length, 20. ,. . Yuklock oscillator, 23. ,,. 0 display, 25,... Display for fishing report, 26,... buzzer! 1) Correction/3j
Person Kinnosuke Nakazawa, representative of Japan Electronic Science Co., Ltd. 7 companies

Claims (1)

[Claims] In a pen recorder that records on a transferred recording paper by a pen driven in accordance with an input signal, a setting means for setting the remaining length of the recording paper before recording on the recording paper; From the remaining length,
Act 3 of subtracting 4 and feed J of the recording paper in the recording process
A pen recorder comprising an arithmetic processing means for performing a calculation, a subtraction operation performed by the f11-1 processing means, and a display means for displaying the result.