JPS59796A - Dot printer - Google Patents

Abstract

PURPOSE:To attain the high speed recording, by splitting recording data of one line's share into a basic data and an added data, storing the data in a buffer memory and controlling the recording head and the shift of recording paper with the presence of the added data. CONSTITUTION:A data conversion means 2 reads out a corresponding character data from a character generation means 3 according to the recording data from a data output means 1, and the recording data for one line's share is split into the basic data recorded with the one shift of the recording head and the added data comprising the remaining data, the basic data is stored in the buffer memory 4 and the added data is stored in a buffer memory 5. The shift operation of the recording head and the amount of shift of recording paper are controlled in the printer 6 according to the presence or absence of the added data in the buffer memory 5.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dot-type printer, and more specifically, the present invention uses a recording head in which a plurality of dot recording elements are arranged in a row in the direction of movement of recording paper. In a dot printer configured to record dots on recording paper by moving the recording head in a direction intersecting the direction of movement of the recording paper, one line of recording data is recorded by one movement of the recording head. Divide the data into basic data and additional data consisting of the remaining data, store these data in buffer memories allocated to each, and move the recording head and move the recording paper according to the presence or absence of additional data in the buffer memory. It is characterized by controlling the amount and realizes high-speed distribution.

A type of printer has multiple dot recording elements (wire pins, heat generating elements) in the direction of movement of the recording paper.

There is a dot-type printer that uses a recording head in which inkjet nozzles (such as inkjet nozzles) are arranged in a row, and is configured to record dots on recording paper by moving the recording head in a direction intersecting the moving direction of recording paper.

Figure 1 shows a pattern matrix recorded by such a printer, where (a) shows alpha pets, (b) shows kanji, and (c) shows small figures. . The alphabet has 13 vertical dots.

It is formed by 7 horizontal dots and 2 horizontal spaces. Kanji characters are formed by 16 vertical dots, 15 horizontal dots and 4 horizontal spaces. Small figures are formed by 19 vertical dots and 9 horizontal dots. Furthermore, when underlining a character, the lowest dot F of the character pattern is also formed at the third lower dot. FIG. 2 shows specific examples of these pattern matrices, where (a) is the alphabet lA1
(b) shows an example of kanji 1 zo 1, (c) shows an example of 1 small figure 1, and (d) shows an example of kanji 1 zo 1 with an underline.

Incidentally, such a pattern matrix may be recorded using a number of dot recording element arrays (for example, 16 dots) smaller than the maximum number of dots in the vertical direction. Conventionally, as shown in Figure 3, for example, as shown in Fig. 3, one line of recorded data is divided into two, into 10 dots at the top and bottom, and stored in a memory with a capacity of 10 vertical dots (stored in sofa memory, 1
Recording is performed in two parts, one for 0 dots and one for 010 dots at the bottom. That is, after recording the upper 10 dots, move the recording paper 10 dots, then record the lower 10 dots, then move the recording paper 10 dots to complete the recording of one line. According to this method, the print head must be moved twice to print one line, making high-speed printing difficult. Further, if a large deviation occurs in the direction of movement of the recording head between the recording of the upper pattern and the recording of the lower pattern, the effect will appear on all rows, and the recording quality will deteriorate significantly.

The present invention solves these conventional drawbacks, and will be described in detail below with reference to the drawings.

FIG. 4 is a configuration explanatory diagram showing an embodiment of the present invention, in which 1 is a data output means, 2 is a data conversion means, 5-digit character generating means, 4 is a first buffer memory, and 5-digit second
6 is a buffer memory, and 6 is a printer.

The data output means 1 outputs a plurality of encoded recording data for each piece of recording data.

The data converting means 2 reads the corresponding character data one by one from the character generating means 3 according to the record data inputted from the data output means 1, and while performing vertical and horizontal conversion, the first) Predetermined data is stored in the buffer memory 5 of. Here, the data converting means 2 converts one line of recording data into a buffer memory 5 consisting of basic data recorded by one movement of the recording head and remaining data, if at least one piece of data is stored. The name is configured to set a flag to indicate this. For example, as mentioned above, a grass-sized F! When recording data of 120 dots, the basic data recorded by one movement of the recording head is the upper 16 dots.

The additional data will be the bottom four dots of the remaining sheet.

Therefore, in this embodiment, the first node (sofa memory 4
As the second buffer memory 5, one having a capacity of 16 vertical dots may be used, and as the second buffer memory 5, one having a capacity of at least -14 vertical dots may be used.

Note that the data conversion means 2 is configured by, for example, a combination of a logic circuit and a program. As mentioned above, the printer 6 uses a recording head in which a plurality of drum F recording elements are arranged in a row in the direction of movement of the recording paper.
The recording head is configured to move in a direction intersecting the moving direction of the recording paper to record dots on the recording paper. In the printer 6 according to the present invention, the moving operation of the recording head and the amount of movement of the recording paper are controlled according to the presence or absence of additional data in the buffer memory 5.

The operation of the device configured in this way will be explained.

FIG. 5 shows an example in which one line of recorded data does not include additional data, and FIG. 6 shows an example in which one line of recorded data includes additional data. In the case of FIG. 5, the flag indicating the existence of additional data is not set, so the printer 6 moves the recording head once to record 16 vertical dots of basic data, and then moves the recording paper 20 dots. controlled by. As a result, one line of print data is recorded by one movement of the print head. On the other hand, in the case of FIG. 6, a flag indicating the existence of additional data is set.

In this case, one line of print data is recorded by moving the print head twice. That is, the first movement of the recording head records the basic data of 16 vertical dots stored in the first buffer memory 4 and moves the recording paper by 16 dots, and the second movement of the recording head records the basic data of 16 vertical dots stored in the first buffer memory 4. The additional data of 4 vertical dots stored in the buffer memory 5 is recorded and the recording paper is moved by 4 dots.

According to such a configuration, only when the flag is raised,
One line of record data can be divided into two parts, basic data and additional data, and recorded by moving the print head twice. The recording time can be significantly shortened compared to the case where recording is performed using the following methods. Further, even if a positional shift as described above occurs between the recording of the basic data section and the recording of the additional data section, the effect of the shift will not affect the additional data.

As explained above, according to the present invention, it is possible to realize a dot-type printer that can perform high-speed recording and has high recording quality, and has great practical effects.

[Brief explanation of the drawing]

FIG. 1 is an example of a pattern matrix recorded by a dot printer, FIG. 2 is a specific example of FIG. 1, FIG. 3 is an explanatory diagram of a conventional operation example, and FIG. 4 is an example of an embodiment of the present invention. The configuration explanatory diagrams shown in FIG. 5 and FIG. 6 are explanatory diagrams of the operation example of FIG. 4. 1... Data output means, 2... Data conversion means, 3
. . . character generating means, 4 . . . first buffer memory, 5 . . . second buffer memory, 6 . . . printer. 1) Figure (C (c)) (d)

Claims (1)

[Claims] A recording head in which a plurality of dot recording elements are arranged in a row in the direction of movement of the recording paper is used, and the recording head is moved in a direction intersecting the direction of movement of the recording paper to record dots on the recording paper. In a dot-type printer configured as shown in FIG. A dot-type printer characterized by storing additional data in an allocated buffer memory and controlling the moving operation of the recording head and the amount of movement of the recording paper according to the presence or absence of additional data in the buffer memory.