JPS63293071A - Line-type recorder - Google Patents

Abstract

PURPOSE:To enable the amplitude and operation of an input voltage waveform to be verified before the start of recording, by turning ON LEDs corresponding to thermal heads by an LED driver when each thermal head is driven by a control signal from a controller. CONSTITUTION:For example, when a control signal S1 for driving thermal heads 103 and 111 is outputted from a controller 5 to a thermal head driver 3, driving signals S103, S111 are outputted from the driver 3 to the heads 103, 111 and an LED driver 4. In response to these signals, signals S21, S23 corresponding to the respective sets are outputted from the LED driver 4, so that LEDs 21, 23 corresponding to the heads 103, 111 are turned ON. Therefore, the operation of an input voltage waveform for recording can be verified before the start of recording, so that it is possible to adjust sensitivity and the position of a reference line without wasting a recording paper.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recorder that records an input voltage waveform, and particularly to a line recorder that records using one thermal head array.

[Conventional technology]

In the past, this type of recorder was generally a pen recorder that recorded using a thermal pen or ink vane, but recently, line recorders that use a single normal head array to record waveforms, characters, graphs, etc. have become popular. It is becoming popular.

[Problem that the invention seeks to solve]

The conventional line-type recorder using the conventional Nori-maru Radar Array described above has a structure in which recording is performed by applying an electric drive signal to the M-type thermal head. It is not possible to check the amplitude and operation of the input voltage waveform until the input voltage waveform is reached, so if the sensitivity or baseline position is not appropriate, you will have to make adjustments and record again, which also wastes recording paper. There is a drawback.

[One Step for Solving the Problems] The line recorder of the present invention includes an LED array consisting of LEDs provided respectively corresponding to a plurality of sets of thermal heads including at least one thermal head, and a thermal head. When a drive signal for driving a thermal head is output from a driver, an LED fiber is provided which inputs the drive signal and outputs a drive signal for driving an LED provided corresponding to a set of thermal heads.

[Effect]

In this way, when each thermal head is driven by a control signal from the controller, the LED driver that drives the LED corresponding to the driven thermal head lights up the corresponding LED, and before actually starting recording. You can check the amplitude and operation of the input voltage waveform.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the main structure of an embodiment of the line type recorder of the present invention.

The controller 5 outputs a control signal S1 for recording,
The thermal head driver 3 inputs the signal S and drives the thermal head array 1 according to its contents.
Outputs -8. The thermal head array 1 includes 16 thermal heads 101 to 116 arranged in a row, and the LED array 2 similarly includes four LEDs 21 to 24.
The thermal heads 101 to 116 are arranged in a line, and each of the thermal heads 101 to 116 is individually connected between the thermal head driver 3 and the LED driver 4 by one signal line, and each of the LEDs 21 to 24 is also 1 each
It is connected to the LED driver 4 with a real signal line. Note that the LEDs 21, 22, 23, and 24 are combined in correspondence with the thermal heads 101 to 104, the thermal heads 105 to 108, the thermal heads 109 to 112, and the thermal heads 113 to 116, respectively, and output from the rad array 1 to the thermal. When at least one of the four thermal heads of each set is driven by the signal S-8, control signals 821 to S24 are sent from the LED driver 4 to the corresponding LEDs 21 to 2, respectively.
4 is output.

Now, for example, the thermal head 10 is transferred from the controller 5.
Thermal head driver 3 to drive 3 and 111
When the control signal S1 is output to the thermal head driver 3, the drive signal 51o3.5111 is output to the thermal head 103.111 and the LED driver 4. In response to this, the LED driver 4 outputs a signal S S corresponding to each group, so the thermal head 2
The LED 21.23 corresponding to 1' 23 103.111 is lit.

This embodiment utilizes the signals 51o1 to 5116 for driving the thermal heads 101 to 116 to set the corresponding L
Since it lights up by driving the ED, no extra controller or software is required.

〔Effect of the invention〕

As explained above, the present invention provides an LED driver that drives the LED corresponding to the driven thermal head when each thermal head is driven by a control signal from a controller, and an LED array that emits light under the control of the LED driver. Since it is possible to check the movement of the input voltage waveform to be recorded before actually starting recording, it is possible to adjust the sensitivity and the position of the baseline without wasting recording paper.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the main structure of an embodiment of the line type recorder of the present invention. 1... Thermal head, 101-106... Thermal head, 2... LED
Array, 21-24...LED. 3... Thermal head driver, 4... LED driver, 5... Controller, Sl... Control signal, S21-S24... LED drive signal, S-8...
・Thermal head drive signal.

Claims (1)

[Scope of Claims] A line recorder having a thermal head array consisting of a plurality of thermal heads, a thermal head driver that outputs a drive signal to each thermal head, and a controller that controls the thermal head driver, at least one When a drive signal for driving the thermal head is output from the thermal head driver, an LED array consisting of LEDs respectively provided corresponding to a plurality of sets of thermal heads including the thermal head; A line-type recorder characterized by having an LED driver that outputs a drive signal to drive an LED provided corresponding to a set of thermal heads.