JPS6340814A - Printing recorder - Google Patents

Abstract

PURPOSE:To achieve a higher printing quality, by a method wherein a printing data is stored temporarily into a memory when a temperature discriminating circuit detects a low temperature and the data thus stored into a RAM is printed and recorded at a normal temperature. CONSTITUTION:A temperature discriminating circuit of a printing recorder is made up of a temperature sensor 16, an amplifier 17 and a comparator 18. Then, first, the time is checked and when the printing time is reached, the level of an ambient temperature is discriminated from a signal of a temperature sensor 16. When a low temperature is read, a data to print at the time is stored into a RAM10 and when the temperature is normal, the printing data previously stored at a low temperature is checked to confirm its existence. Such a data when existing is printed initially and then, the present printing data is printed. This enables the use of the print recorder without lowering the printing quality, for example, even at a cold region as well.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention is intended to solve the problem of print quality deterioration even at low temperatures when receiving pulses from a print recorder, especially a power consumption meter with a transmitting device, and printing and recording at fixed time intervals. The present invention relates to a print recorder that does not become inoperable or unable to print.

[Conventional technology]

Figures 3, 9, and 5 are for example 1=01
FIG. 2 is an exemplary diagram of a conventional print recorder shown in Publication No. A92/. FIG. 3 is a block diagram showing a conventional print recorder, in which an input section (6), an operation setting section (71) are connected to a central processing unit (yl,
ROM (ql, RAM (/0), output section (//
) are interconnected with each other. (/) is a dot printer for printing the output data from this output section (//), (/3) is this input section (6), operation setting section (7).
1. Central processing unit (1), ROM (1. RAM (
10), an output section (H"), and a dot printer. Fig. 1 is a perspective view schematically showing the printing section of the dot printer (/) in the above conventional example, The recording paper for printing and recording consists of an aluminum substrate (,71) and n heating dots (ko/), (koko),...
・A print head consisting of (knee n), (Sl is a flexible lead body. FIG. 5 is an illustrative diagram of printing made by the above conventional example, It is a recording paper.

The conventional print recorder is configured as described above, and in the third factor, it operates according to the program written in the central processing unit (11 is ROM+?), and the print recorder (/
3) Control each part. Operation setting unit (71 is a functional unit that performs setting of data such as time, input pulse conversion ratio, time limit, etc., paper feeding of the dot printer (l-yu), time setting for printing data at an arbitrary time, etc. The set data is held in the RAM (10').Input from the input unit (6) is taken in at any time, processed by the central processing unit (ffl), and stored in the RAM (10).RAM
(10) has a built-in clock and a central processing unit (f
fl outputs the output section (/I) at regular intervals according to the clock.
The dot printer (/2) is controlled via the dot printer (/2) to perform print recording. In Fig. 1, the thermal recording paper (C) is selectively heated and colored by heating dots (knee/) to (knee n), and is moved at a constant speed in the direction of arrow F.

Then, each heating dot (u-/) to (2-n) is connected to the central processing unit (1) through the flexible lead body (s).
By being controlled to selectively take a heating state or a non-heating state in sequence according to signals from Ru.

[Problem that the invention seeks to solve]

In conventional print recorders, the print head of the dot printer is affected by the ambient temperature, and when the temperature is low, the temperature applied to the thermal recording paper does not rise to the coloring temperature. Alternatively, there was a problem that printing became impossible.

The present invention was made to solve the above-mentioned problems, and an object of the present invention is to provide a print recorder that can maintain normal print quality even when the ambient temperature is low.

[Means for solving problems]

The print recorder according to the present invention includes a temperature sensor that detects ambient temperature, an amplifier that amplifies the signal from the temperature sensor, and a comparator that compares the signal from the amplifier with a signal at a predetermined reference level. When this temperature discrimination circuit detects a low temperature, the measured data is temporarily stored in the RAMK in the print recorder, and when the temperature discrimination circuit detects normal temperature, it is stored in the RAM. The measured data is printed and recorded using a heat-sensitive dot in the print head.

[For production]

In the print recorder of this invention, the temperature of the peripheral discharge is detected by the 2-degree sensor, and the data to be printed at low temperature is stored in the RAM (
10) Store the above data once at normal temperature.
It is read from AM (/θ) and printed.

〔Example〕

FIG. 1 is a block diagram showing a print recorder according to an embodiment of the present invention, and in the figure, (6) to (/) are the same as or equivalent to those in FIG. 3, so they are omitted. . (/JA) includes a temperature sensor (/6), an amplifier (
/q), a print recorder further added with a comparator (/l), (ib) is a temperature sensor installed near the dot printer (l), and detects the ambient temperature of the dot printer (/l), (/7). ] is an amplifier that amplifies the signal from the temperature sensor (/6), (7g) is an amplifier (17)
A comparator that compares the magnitude between the voltage value amplified by the voltage value and the value of the input signal at an appropriately set reference level, and sends a signal to the input section (6) to distinguish between low temperature and normal temperature. be. And these temperature sensors (/6),
The amplifier (17) and the comparator (pi)t constitute a temperature discrimination circuit. FIG. 1 is a flowchart showing the printing operation procedure of the present invention.

In the print recorder configured as above, first, as shown in Figure 1, it is checked whether it is the time to print (B/'), and if it is the printing time, K indicates the level of the ambient temperature. It is determined by the signal from the temperature sensor (ib) (Sx), and when the temperature is low, the data to be printed at that time is stored in the RAM (10') (F3J), and when the temperature is room temperature, the data to be printed at that time is stored in the RAM (10'). Check whether there is any data to be printed (Sq),
If such data exists, the data is printed first (rsr), and then the data to be printed this time is printed (S6).

In the above embodiment, a temperature discrimination circuit consisting of a temperature sensor (/6), an amplifier (7), and a comparator (/za) is used to apply a condition signal at low temperature to the input section (41K); however, the present invention is not limited to this. For example, a bimetallic 0N10FF signal may be added.Furthermore, in the above embodiment, the dot printer (lx) is a thermal type, but if the printing quality deteriorates at low temperatures, a non-thermal type may be used. Needless to say, any printer will have the same effect.

〔Effect of the invention〕

As explained above, the print recorder of the present invention is provided with a temperature sensor that detects the ambient temperature, temporarily stores data to be printed in the RAM at low temperatures, and stores the data to be printed in the RAM at normal temperatures. Since it is configured to print data, it is possible to provide a print recorder that can be used, for example, in cold regions without deteriorating print quality.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing a print recorder according to an embodiment of the present invention, Fig. 1 is a flowchart showing the printing operation procedure of the invention, Fig. 3 is a block diagram showing a conventional print recorder, Fig. 5 is a perspective view schematically showing the printing section of the dot printer in the conventional example, and FIG. 5 is an illustrative view of printing performed by the conventional example. In the figure, (6)...input section, (7)...operation setting section% (t).
・Central processing unit! 9>--ROM, (10)-6RA
M, (//)--output section, (/, t)--dot printer, (iJ'). (/3)...print recorder, C/6) @ temperature sensor, (/7) fist amplifier, (/za) lI comparator. Note that the same reference numerals in each figure indicate the same or corresponding parts. Agent Zeng Wado Teru 1ζ: 2 Near, 1
・、゛Enter゛; To 1; fortune e4 gonito f

Claims (1)

[Claims] A print recorder including at least a central processing unit, a storage device, and a dot printer, a temperature sensor installed near the dot printer, an amplifier that amplifies a signal from the temperature sensor, and a signal from the amplifier. It is equipped with a temperature discrimination circuit consisting of a comparator that compares the signal with a predetermined reference level signal, and when the temperature discrimination circuit detects that the temperature is low, the print data at that time is temporarily stored in the storage device, and then the temperature is returned to normal temperature. A print recorder characterized in that when it detects that the print data is stored, the print data that has been stored once is supplied to the dot printer to print and record the print data.