JPH04344266A - Printer - Google Patents

Abstract

PURPOSE:To enable a highlighted reduced character having doubled thickness to be printed without decreasing speed for printing. CONSTITUTION:A logical add of three printing data continued transversely is taken to be converted to one dot pattern by a conversion means 61 from a data in a character printing data memory means 7. Then, a NULL data from a means 62 wherein a data not to be printed is annexed is annexed to form a highlighted reduced character having double thickness.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer device for printing emphasized double-width reduced characters.

0002

2. Description of the Related Art Characters printed in a terminal printer are defined as normal characters if they are not decorated with emphasis, reduced or enlarged. A conventional method of printing emphasized double-width reduced characters will be described. The moving speed of the normal character head is V, and the printing timing cycle is T.
Then, normal characters are printed at speed V and timing T, as shown in FIG. 4(a). To print an emphasized double-width character, as shown in Figure 4(b), the normal character shown in Figure 3(a) is expanded into an emphasized double-width character, and the head movement speed is reduced to half V/2. By printing at the same printing timing T as normal characters, the printing density was increased and emphasized double-width characters were realized. To print emphasized double-width reduced characters, as shown in Figure 4(c), the head movement speed is reduced to 1/4 V
/4, printing was performed at the same printing timing T as normal characters, and the printing density was further increased to realize emphasized double-width reduced characters. Alternatively, as shown in FIG. 5, a character information diagram 5 previously designed for emphasized double-width reduced characters.
(a), and print the emphasized double-width reduced character (Figure 5(b)) by using that data as print data and printing at half the head movement speed V/2 and the same printing timing T as for normal characters. was.

0003

However, in the above-mentioned prior art, the means for moving the print head must include a device that reduces the moving speed to 1/4. or
As emphasized double-width reduced characters of normal characters, the designed character information must be stored in the internal memory, and the problem is that the corresponding memory capacity must be maintained.

[0004]The present invention has been made to solve these problems, and its purpose is to move the print head in a normal manner without having a device for reducing the movement speed to 1/4 in the means for moving the print head. By creating character information for emphasized double-width reduced characters for normal characters based on the character information of the characters, there is no need to store character information for emphasized double-width reduced characters for normal characters in the internal memory, and Enables printing of reduced width characters.

[0005]

[Means for Solving the Problems] The printer device of the present invention has a storage means for storing print data of a character, and when the moving direction of the print head is the horizontal direction, the printer device has a storage means for storing character print data, and when the moving direction of the print head is the horizontal direction, the printer device has a storage means for storing character print data, and when the moving direction of the print head is the horizontal direction, Printing data for emphasized double-width reduced characters is created by means for taking the logical OR of three dot patterns and converting them into one dot pattern, and means for adding a dot pattern that is not printed, and for printing emphasized double-width reduced characters. Features.

[0006]

[Embodiment] An embodiment of the present invention will be described below. FIG. 1 is a block diagram of the concept of the present invention, and FIG. 2 is a block diagram showing an embodiment of the printer device of the present invention. A system bus 1 includes a control section 2 that controls the entire device, selects the moving speed of the head, controls the conversion section, etc., a head drive section 3 consisting of a head for printing characters and its drive circuit, and a print head. A carriage section 4 consisting of a carriage that moves in a direction perpendicular to the paper feeding direction and its driving circuit; a paper feeding section 5 consisting of a motor and its driving circuit for feeding paper to be printed; and a paper feeding section 5 for storing dot patterns of characters to be printed. The character print data storage unit 7 calculates the logical sum of three dot patterns adjacent to each other in the horizontal direction and one dot pattern in order to convert the character information of the printed character by referring to the character information. A character information converting section 6 consisting of a device for converting into a pattern 61, a means 62 for adding a dot pattern that is not printed, or its software, and an external interface section 8 for transmitting and receiving data with the host computer are connected respectively. ing.

Next, details of the character information converter will be explained. FIG. 3 is a diagram illustrating the basic principle of generating an emphasized reduced character having a width of 6 dots in the horizontal direction based on a normal character having a width of 9 dots in the horizontal direction. Figure 3(a) is 120DPI
(Dot Per Inch) character information. Black circles represent printed dots. White circles represent dots that are protected by the print timing of the head and are not actually printed. Further, the data of a character consisting of 9 dots in the horizontal direction is 1, 2, 3, 4, 5, 6, 7, 8, and 9 from left to right. 1
9 to 9 are character information of actual characters. Furthermore, the values from -1 to 0 and from 10 to 11 are NULL data added before and after the actual character information for conversion. Figure 3(b) shows the 120
This is character information of a highlighted character with a width of 11 dots in the horizontal direction expressed in DPI. Similar to FIG. 3(a), black circles represent printed dots. White circles represent dots that are protected by the print timing of the head and are not actually printed. In addition, character data consisting of 14 dots in the horizontal direction is written from left to right as follows: 1', 2', 3', 4', 5', 6
', 7', 8', 9', 10', and 11'.

The conversion method from FIG. 3(a) to (b) is as follows: -1 which is NULL data in the horizontal direction of FIG. 3(a)
, 0, and 1, which is print data, are logically summed, and the resulting data is stored in 1' in FIG. 3(b). Next, the N.U.
The LL data is stored in 2' in FIG. 3(b). Furthermore, N
The logical sum of 0, which is ULL data, and 1 and 2, which are print data, is taken, and the resulting data is stored in 3' in FIG. 3(b). Next, NULL data is stored in 4' in FIG. 3(b). Furthermore, print data 1, 2, 3 in FIG. 3(a)
Take the logical sum of
Store to. Next, the NULL data is set to 6 in Figure 3(b).
Store to '. Furthermore, print data 2 and 3 in Fig. 3(a)
, 4 is taken, and the resulting data is stored in 7' in FIG. 3(b). Next, the NULL data is shown in Figure 3(b).
Store to 8' of Furthermore, repeat the same process to obtain the image shown in FIG. 3(a).
) of print data 7, 8, and 9 is taken, and the resulting data is stored in 17' in FIG. 3(b). Next, the N.U.
The LL data is stored in 18' in FIG. 3(b). Furthermore,
The print data 8, 9 in FIG. 3(a) and the NULL data 10 are logically summed, and the resulting data is
Store in 19' of b). Next, NULL data is stored in 20' in FIG. 3(b). Furthermore, the print data 9 and 10 in FIG. 3(a) and the NULL data 11 are logically summed, and the resulting data is stored as 21' in FIG. 3(b).
Store in.

[0009] As a result, print data is generated from a normal character with a width of 9 dots in the horizontal direction to an emphasized double-width reduced character with a width of 21 dots in the horizontal direction without damaging the print data in the vertical direction. The print data is also 60
It is placed at the DPI position. Further, by adding NULL data after taking the logical sum and converting the data, the print timing of the head will not exceed T.

The generated print data is reduced to a head movement speed of half V/2 of normal character printing,
By printing at the same printing timing T, it is possible to print the highlighted double-width reduced character shown in FIG. 3(c).

[0011] This eliminates the need to print by increasing the printing density by changing the moving speed of the print head to 1/4, and eliminates the need for a device for changing the speed of the print head to 1/4. Furthermore, since characters such as reduced characters of emphasized characters are generated, there is no need to store such character information internally in advance, and the internal memory can be saved accordingly.

0012

[Effects of the Invention] As described above, according to the present invention, it is possible to create character information of emphasized double-width characters using the same characters from print data of normal characters.
Emphasized double-width reduced characters can be printed by reducing the head movement speed to half. Therefore, there is no need to provide a device for changing the print head movement speed to 1/4 in order to change the print density, and there is no need to store character information for emphasis magnification/reduction in the internal memory.

[Brief explanation of the drawing]

FIG. 1 is a diagram clearly showing the configuration of the present invention.

FIG. 2 is a block diagram showing an embodiment of the present invention.

FIG. 3 is a diagram showing the basic principle of generating emphasized double-width reduced characters from normal-width characters.

FIG. 4 is a diagram showing an example of a conventional technique for printing emphasized double-width reduced characters.

FIG. 5 is a diagram showing an example of a conventional technique for printing emphasized double-width reduced characters.

Claims (1)

[Claims] Claim 1: Means for storing character print data, when the print head moves in the horizontal direction, calculates the logical sum of three consecutive dot patterns of the adjacent dot pattern and the adjacent dot pattern in the horizontal direction, and generates one dot pattern. A printer device that creates and prints print data using means for converting it into a dot pattern and means for adding a dot pattern that is not printed.