JPH02221814A - Data processor - Google Patents

Abstract

PURPOSE:To prevent the wasteful output of blank chart paper and the erasion of printed data by printing a mark at the proper spot of the chart paper during processing for printing one page and detecting the presence or absence of the mark. CONSTITUTION:A small scale memory 22 stores the data which should be printed every one page. A mark printing head 3 prints the mark on the proper spot of the chart paper and the presence or absence of the mark is detected by a mark detection means 4. A CPU 21 judges that normal printing is executed when the mark is detected at the time of completing the printing of one page and allows the printing of the data of the next page to be continued. Meanwhile, when the mark is not detected, it judges that the printing is not normally executed because of the exhaustion of ink and stops the feed of the chart paper, then one page of stored data stored in the small scale memory 22 is shifted to a large scale memory 26. Thereafter, the data which should be printed is shifted from the small scale memory 22 to the large scale memory 26 every one page.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a data processing apparatus, for example, a data processing apparatus used in a chromatographic homogeneity analyzer.

(B) Conventional technology In a conventional chromatographic data processing device, chromatogram data is taken into a control section at each sampling time, and the control section stores this data in a memory and drives a printer. Executes data printing on chart paper.

(c) Problems to be Solved by the Invention Generally, a printer for a chromatographic data processing device uses a thermal head or an inkjet head. Some inkjet heads are inexpensive and disposable, and this type of inkjet head has a small tank capacity for storing ink. Therefore, when printing data for automatic analysis, it is difficult to judge whether the remaining amount of ink is sufficient for printing during automatic analysis. Therefore, there is a problem that if the head (with an ink tank) is replaced early, there will be more waste, and if the head is replaced later, the ink will run out during the analysis. In other words, conventional data processing devices do not have a means to detect when ink runs out. Therefore, if ink runs out during data printing processing,
As a result, blank chart paper is continuously output, which has the disadvantage that not only is the paper wasted, but also analysis data is lost. In addition, in the case of a thermal head, if the thermal element fails during printing, data will not be printed on the chart paper and a blank sheet will be output, which not only wastes paper, but also
Analysis data will also be lost.

This invention solves the above-mentioned problems and continues printing the next page only when the printing process is executed normally.
If the printing process is not performed normally, paper feeding is stopped and one page's worth of print data is sequentially transferred from the small capacity memory to the large capacity memory, thereby eliminating wasted output of blank sheets of chart paper and loss of printed data. The purpose is to provide a data processing device that can prevent

(d) Means and operation for solving the problem In order to achieve this object, the data processing device of the present invention has the following configuration.

The data processing device includes a small-capacity memory that stores data to be printed for each page, a mark printing means that prints a mark at an appropriate position on the chart paper each time one page of data is printed on chart paper, and mark detection means for detecting presence or absence;
Data printing of the next page is continued by the mark detection by the mark detection means, while when no mark is detected, the feeding of the chart paper is stopped and the data for that one page stored in the small capacity memory is stored. It is comprised of a data processing means that transfers data to a large capacity memory and transfers data to be printed thereafter from a small capacity memory to a large capacity memory for each page.

In a data processing apparatus having such a configuration, the mark detection means (photoelectric sensor) is arranged, for example, on the forward direction of paper feeding rather than on the print head line. Furthermore, printing of the mark is executed, for example, in the middle of data printing of one page. now,
When the print data is transmitted, the print data is sequentially stored in the small capacity memory, and the print head is driven to print the data on the chart paper. Then, in the middle of one true printing, when the position where the mark is to be printed is reached, the print head moves to one end of the chart paper and prints the mark. Then, the data to be printed is printed on the chart paper again. At this time, the chart paper is sequentially fed forward in the data printing operation, and a photoelectric sensor detects the presence or absence of marks. If a mark is detected when printing for one page is completed, it is determined that printing has been performed normally, that is, the ink is not exhausted, and data printing for the next page is continued.

However, if the photoelectric sensor does not detect a mark, it determines that printing is not being performed normally, that is, the ink is out, and immediately stops feeding the paper and cancels the data printing operation. Then, one page's worth of data stored in the small capacity memory is transferred to the large capacity memory (propy disk). Furthermore, when the data that is sequentially transmitted and stored in the small capacity memory reaches one page, the data is transferred from the small capacity memory to the large capacity memory.

In this way, if a normal printing operation is not being performed due to lack of ink or the like, wasteful feeding of blank chart paper is prevented, and disadvantages such as loss of data are eliminated.

(e) Embodiment FIG. 3 is an explanatory diagram showing a specific embodiment of the data processing apparatus according to the present invention.

The data processing device includes a chart feeding mechanism 1 and a control device 2.
The control device 2 comprises a print head 3 that prints data on chart paper 13, and mark detection means 4 that detects the presence or absence of marks printed on chart paper 13.

The print head 3 uses an inkjet head in the embodiment, and executes a print operation based on print commands and data from the control device 2. Further, the head motor 31 moves the head to the left, right, and laterally. Further, in the chart feeding mechanism 1, a feeding roller 12 is rotated by a chart motor 11 driven by a drive signal from the control device 2, and the chart paper 13 is fed in a forward direction or a reverse direction. In addition, the mark detection means 4
In this embodiment, a reflective photoelectric sensor is used. This photoelectric sensor 4 is fixedly arranged on the forward direction side of the print line of the print head 3 and on one side of the chart paper 13.

FIG. 2 is a block diagram showing an example of the circuit configuration of the data processing device according to the embodiment.

The control device 2 includes a CPU (central processing unit) 21, a small memory 22, and a keyboard 23.
, a display section 24 , an A/D converter 25 , and a large capacity memory (floppy disk) 26 . Also,
The printer block 5 includes a chart motor 11, a head motor 31, a print head 3, and mark detection means (photoelectric sensor) 4.

When data to be printed (chromatographic data) is input to the control section, the A/D converter 25 converts the analog data into digital values and stores them in the small capacity memory 22 via the CPU 21. The CPU 21 is a chart motor 11.
Then, the head motor 31 is driven to feed the chart paper 13, and at the same time, the print head 3 is driven to execute data printing processing. Furthermore, during the printing process for one page, the CPU 21 determines whether or not the mark printing position has been reached, and when the mark printing position has been reached, the print head 3 is moved to one side of the chart paper 13, Print mark 6. Then, the printing process is continued until the printing process for one page is completed. The photoelectric sensor 4 detects the presence or absence of the mark 6, and transmits a mark detection/presence signal to the CPU 21. When the CPU 21 receives the mark detection signal, it continues the printing process for the next page, but when it receives the no mark detection signal, it stops driving the chart motor 11 and the head motor 31. Then, one page worth of print data stored in the small capacity memory 22 is transferred to the floppy disk 26.

Thereafter, when the print data transmitted in the same manner reaches one page, the stored data for one page is transferred from the small capacity memory 22 to the floppy disk 26.

FIG. 1 is a flowchart showing specific processing operations of the data processing apparatus of the embodiment.

When the data to be printed is read [step (hereinafter referred to as rsTJ)
)1], the data is stored in the small capacity memory 22, and the data is printed using the printing hand 3 while feeding the chart paper 13 (Sr1). In Sr1, it is determined whether the position is a mark printing position or not. The mark printing position is set in advance so as to be printed, for example, before the end of one page.

If the chart paper 13 has not been fed to this mark printing position, this Sr1 becomes "No" and the process proceeds to Sr1. In Sr1, it is determined whether or not the mark position has been passed.Currently, mark printing is performed. Since the position has not been reached, the determination of Sr1 becomes NO°, and the process returns to STI to continue printing the data. Now, assuming that the mark printing position has been reached, the judgment of Sr1 is "YES",
Move the print head 3 to one side of the chart paper 13,
Print the mark (Sr5). In Sr1, it is determined whether printing for one page has been completed.

If the printing process for one page has not been completed, this Sr.
1 becomes "NO", and the process returns to STI to continue the data printing process. Then, assuming that the printing process for one page is completed, the judgment of Sr1 becomes ° “YES”,
Proceed to Sr1. In Sr1, it is determined whether or not a mark has been detected. If the mark is properly printed at the mark printing position, the chart paper 3 is fed in the forward direction by the subsequent printing process, and the photoelectric sensor 4 is
should have detected the mark 6 passing through. Therefore,
Photoelectric sensor 4 detects mark 6 and sends this detection signal to CP
If U21 has taken it in, the judgment of Sr1 will be “Y”.
In other words, it is determined that the ink has not run out and the printing process for this page has been properly performed, and the process returns to the STI to continue printing the next page.

However, if the photoelectric sensor 4 does not detect the mark 6 even though the mark 6 is printed at the mark printing position,
The determination of Sr1 becomes "No".

In other words, it is determined that the printing process for this page has not been performed properly due to the ink shortage. Then, the drive of the chart motor 11 is immediately stopped (Sr8), and the chart paper 13 is stopped.
Then, the data supply to the head 3 is stopped, and the printing operation is stopped. And small memory 2
One page of memory data stored in 2 is transferred to the floppy disk 26 (Sr9). Thereafter, the data to be printed on the next page is sequentially stored in the small capacity memory 22 (STIO), and when the stored data in the small capacity memory 22 reaches one page (STIO).
TII), one page worth of data in the small capacity memory 22 is sequentially transferred to the floppy disk 26 (ST12).

This prevents blank chart paper from being sent out without being properly printed due to, for example, running out of ink, and eliminates the disadvantage of data loss.

In addition, if printing is interrupted midway due to running out of ink, etc., and the printing data is saved in the large capacity memory (floppy disk) 26, for example, after the RAD 3 is replaced with an inkjet that has run out of ink, the data can be saved from the keyboard 23. When this is input, the data stored on the floppy disk 26 is printed, and the rest can be printed out.

FIG. 4 is a flowchart showing the processing operation of another embodiment of the data processing device.

In the previous embodiment, an example was shown in which the photoelectric sensor 4 was placed on the forward side of the paper feed from the print line of the print head 3. An example is shown in which it is placed in the opposite direction of feed (see imaginary line [4'' in Fig. 3).

That is, in this embodiment, the mark 6 is printed when the printing process for one page is completed.

When the data to be printed is read (ST21), it is stored in the small capacity memory 22 and printed on the chart paper 13 (ST22). At 5T23, it is determined whether printing for one page has been completed. Assuming that printing for one page has been completed, the determination of Sr13 becomes "YES" and the chart paper 13 is moved back (ST24). In other words, the mark (or page number) is moved back to the printing position.

Then, mark 6 is printed (ST25). Thereafter, the chart paper 13 is further moved backward (ST26), and then the chart paper I3 is fed forward by tfl (ST27). At this time, the photoelectric sensor 4 detects the mark 6 passing through the photoelectric sensor 4. For 5T28°, photoelectric sensor 4 is at mark 6.
It is determined whether or not it has been detected. If the mark 6 is detected, it is determined that the ink is not out and the printing process for this page has been properly executed, and the chart paper 13 is returned to its original position (ST29). That is, the chart paper 13 is returned to the print processing start point for the next page, and the print processing for the next page is continued.

However, if the photoelectric sensor 4 does not detect the mark that should have been printed, the determination of 5T2B becomes "NO". In other words, Kuzu determines that the ink has run out and that this page has not been printed properly. Then, the drive of the chart motor 11 is immediately stopped (ST30), the feeding of the chart paper 13 is stopped, and the printing operation is stopped. Then, one block's worth of data stored in the small capacity memory 22 is transferred to the floppy disk 26 (ST31). Thereafter, data to be printed on the next page is sequentially stored in the small capacity memory 22 (ST32), and when the stored data in the small capacity memory 22 reaches one page (ST33), one page's worth of data is stored in the small capacity memory 22. The data is transferred to the floppy disk 26 (ST34).

This prevents blank chart paper 13 from being sent out without being properly printed due to, for example, running out of ink, and eliminates the disadvantage of data loss. Furthermore, this embodiment has the advantage that paper breaks (chart paper breaks) can also be detected using - number of sensors.

In the embodiment, the mark 6 was printed, but by adjusting the level of the photoelectric sensor 4, it is possible to determine whether or not the printing process has been performed properly by simply printing the page number instead of the mark 6. Yes, you can output more beautiful reports.

(F) Effects of the Invention As described above, in this invention, a mark is printed at a suitable position on chart paper during printing processing for one page, and the presence or absence of this mark is detected, and when the mark is detected, continues the printing process for the next page; conversely, if no mark is detected, the printing process is stopped, and the print data for page ■ is transferred from the small capacity memory to the large capacity memory, and from then on, the small capacity memory is
Each time a page's worth of data is memorized, the data is stored in a large-capacity memory, so if ink runs out during printing and proper printing cannot be performed, you can use blank chart paper as before. This invention has excellent effects that achieve the purpose of the invention, such as preventing the waste of outputting data and eliminating disadvantages such as data loss.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing the processing operation of the data processing device of the embodiment, FIG. 2 is a circuit block diagram of the data processing device of the embodiment, and FIG. 3 is an explanatory diagram of the data processing device of the embodiment.
FIG. 4 is a flowchart showing the processing operation of another embodiment of the data processing apparatus. 1: Chart feeding mechanism, 2: Control device, 3: Print head, 4: Mark detection means, 6: Mark.

Claims (1)

[Claims] (1) A small-capacity memory that stores the data to be printed for each page, a mark printing means that prints a mark at the appropriate location on the chart paper each time one page of data is printed on the chart paper, and a mark printing means that prints a mark at the appropriate location on the chart paper, and checks whether or not there is a mark. The mark detection means detects the mark, and the mark detection means continues the printing process of the next page by detecting the mark, and when no mark is detected, stops feeding the chart paper, and the above-mentioned small capacity memory stores the information. A data processing device comprising data processing means that transfers the stored data for one page to a large capacity memory, and transfers data to be printed thereafter from the small capacity memory to the large capacity memory for each page.