JPS6183079A - Terminal apparatus - Google Patents

Abstract

PURPOSE:To enhance printing density, by setting the arrangement pitch of the dot printing elements of a printing head to the min. unit of the new line feed amount of paper and performing the new line of paper according to the new line amount indication line from a central apparatus. CONSTITUTION:When a printing data is received from a central apparatus in a receiving control part 15, a printing data output part 16 takes out the printing data (b) of a first line from the above mentioned control part 15 and a dot pattern corresponding to said data is generated to be outputted to a printing head 11 to perform printing. Next, when a new line code is detected, new line amount indication data (d) is analyzed by a new line data analysis part 18 to impart an order to a paper feed control part 17. By this mechanism, the control part 17 generates a drive signal (c) in a paper feed motor 12 to perform a new line. At this time, the arrangement pitch of dot printing elements, that is, the dot pitch of the dot rows in a longitudinal direction is set to a min. unit and a line interval can be changed finely and arbitrarily. Therefore, printing density is enhanced and a printing format can be designed freely.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a terminal device having a dot matrix type printer, and in particular, it is possible to arbitrarily vary the paper line feed amount using the vertical dot pitch of printed characters as the minimum unit by line feed specifying data from a central device or the like. The present invention relates to a terminal device that is configured as follows.

In a terminal device equipped with a conventional dobutomatari splinter, the paper line feed amount is measured in units of intervals wider than a predetermined vertical dimension of printed characters (generally 1/3 inch or 1/6 inch interval). The paper feed amount is changed by switching the paper feed interval designation switch or the like, and it is not possible to feed the paper in units of paper feed intervals narrower than the vertical dimension of the printed characters.

For this reason, there were problems such as less freedom in printing format and restrictions on printing density.

SUMMARY OF THE INVENTION An object of the present invention is to provide a terminal device that solves the above problems.

That is, the present invention provides a terminal device equipped with a printer in which line feed of paper is performed in accordance with line feed R designation data from a central device, etc., with the arrangement pitch of dot printing elements of a print head as the minimum unit of the line feed amount of paper. It is something to do.

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

As shown schematically in FIG. 1, this terminal device is composed of a printing mechanism section and a control section. The print mechanism section includes a print head 11, a paper feed motor 12 using a pulse motor for vertically feeding the printing paper 14, and a paper feed mechanism 13 consisting of a power transmission mechanism. The control unit includes a reception control unit 15 that receives print data and line feed designation data from a solid device, etc., and a reception control unit 15 that extracts print data b for a certain print line from the reception control unit 15 and sends dot pattern data for the print data to the print head 11. The print data output unit 16 outputs a, and the reception control unit 15 outputs line feed amount designation data d.
A line feed data analysis unit 18 extracts the data and creates data for specifying the amount of paper feed after printing the relevant type, and a drive pulse is generated for the paper feed motor 12 based on the data from the line feed data analysis unit 18 to control line feed. It is composed of a paper feed control section 17 that performs the following operations.

As shown in FIG. 2, the print head 11 includes n dot printing elements 19 arranged vertically at a pitch p. While moving this print head 11 in the printing line direction, that is, in the horizontal direction, printing is performed using a dot matrix of vertical n dots. The results of printing by the print head 11 are shown in FIG.

As shown in the figure, the line spacing between printing on the mth line and the m+1th line is controlled to be an integral multiple of the dot printing element spacing (pitch) p of the print head in accordance with line feed amount designation data d.

FIG. 4 shows the structure of data received from a solid device or the like. In this example, the message structure is such that the print data for each line is followed by data specifying the amount of line feed after printing the line, and the data specifying the amount of line feed is an integer of the dot printing element pitch p of the print head 11. expressed in times.

The operation of the terminal device upon receiving a message as shown in FIG. 4 is as follows. When the reception control unit 15 receives the message, the print data output unit 16 extracts the first line of print data b from the reception control unit 15, generates a tone pattern for the print data, outputs it to the print head 11-, and prints it. Do this. When the line feed hood (NL) indicating the end of the data on the first line is detected, the line feed data analysis unit 18 analyzes the line feed amount designation data d following the line feed code, and then issues a command to the paper feed control unit 17. As a result, the paper feed control section 17 generates a paper feed motor drive signal C to the paper feed motor 12 to cause the paper feed motor 12 to perform a line feed. FIG. 5 shows the printing results obtained by repeating the above operations.

As described above, in the terminal device of the present invention, the line spacing can be finely and arbitrarily changed using the arrangement pitch of the dot printing elements, that is, the dot pitch of the vertical dot row as the minimum unit, according to the specifications from the solid device etc. . Therefore, you can freely design the printed 7-ohmanoto, and
Effects such as improved printing density can also be obtained.

[Brief explanation of the drawing]

The first factor is a schematic configuration diagram of an example of a terminal device according to the present invention, FIG. 2 is an arrangement diagram of a dot printing element of a printing dot, FIG. 3 is a diagram showing a printing result by the printing dots of FIG. 2, and FIG. 4 5 is a diagram showing an example of a received message from a solid device or the like, and FIG. 5 is a diagram showing a printout of the terminal device in FIG. 1 in response to the received message in FIG. 4. 11...Print head, 12...Paper feed motor, 1
3...Paper feed mechanism, 14...Paper, 15...Reception control section, 16...Print data output section, 17...
Paper feed control unit, 18...Line feed data analysis unit, 19
...Dot printing element. 1st leap TA 4th leap Figure 5 Procedural amendment (method) Person making the amendment 11 cases and bookkeeper Patent applicant 6th name '51 The full text of the document and the contents of the drawing amendments are as shown in the attached appendix.

Claims (1)

[Claims] 1. The printer has a printer that prints on paper in a dot matrix, and the printer has a mechanical section including a print head with a plurality of dot printing elements, a paper feed mechanism that feeds the lines of the paper, and character data from a central device, etc. and a control unit that drives the print head to print the character data according to the data, and operates the paper feed mechanism to feed the paper in accordance with line feed amount designation data from a central device, etc. The terminal device is characterized in that the control unit is configured to arbitrarily control the line feed amount in accordance with the line feed amount designation data using the arrangement pitch of the dot printing elements as the minimum unit.