JPS58153665A - Method for printing lateral ruled line in dot printer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical aspects of the invention The present invention relates to the selection of a head bin to be used when printing horizontal lines in a dot printer.

(2) Background of the technology Currently, in addition to printing regular characters, dot printers can print horizontal straight lines such as horizontal lines between lines and horizontal lines for table O divisions (hereinafter referred to as machine lines) as needed. It looks like this.

The method of printing is to represent a line by a series of dots using printing bins, like normal characters.

Therefore, when printing a single horizontal line, it is necessary to continuously strike a single bottle.

In conventional wired matrix Taki serial printers, only the bins at a specific position in the bin array in the head (usually the top bin based on the character arrangement) are used for printing horizontal lines. It is now possible to do so.

(3) Prior art and problems The printing bin head of a serial printer with a wired matrix lid has a number of bins determined by the roughness of the dots that form the characters arranged in one or two closely spaced rows. The firing is done by the magnetic force of a 1m driving coil that corresponds to each bottle. In other words, when a pulsed current is passed through the electromagnetic coil corresponding to the bottle that needs to be struck, one stroke is performed. Therefore, when printing a horizontal line, a pulse current is continuously passed through the electromagnetic coil of the bottle set for printing the line. Such a configuration and usage has the following problems.

The first is that the electromagnetic coil generates heat because the frequency of continuous pulse current flowing through the electromagnetic coil increases, and this heat may cause dielectric breakdown. Second, since line printing is performed using a specific bottle, the bottle is subject to severe wear and needs to be replaced, but with the current bottle head structure, it is not possible to replace only the bottle. Finally, we are in a very difficult situation where we have no choice but to replace the entire head. This has the disadvantage that the life of the head is extremely short.

(4) Purpose of the Invention In view of the above-mentioned drawbacks of the conventional art, the present invention does not use a specific bin for printing horizontal lines, but uses a different bin for each line or several lines of horizontal lines. so as to avoid the imbalance of certain bins with false bins and overheating of the corresponding electromagnetic coils;
This is intended to extend the life of the bottle head.

(5) Structure of the Invention The basic concept of the present invention is to print one or several lines of horizontal lines on a particular bottle, and then print the next horizontal line on a particular bottle. When printing a line, another bin, for example, an adjacent bin, is automatically used.

In this ninth step, it is necessary to memorize which bottle the horizontal line was printed on, and to instruct to drive the - bin when printing the horizontal line next time, and at the same time to print the horizontal line by that bottle. Feeding of paper on which printing is performed so that printing is performed at a predetermined O line position) (hereinafter referred to as line feed and abbreviated as LF)
The pitch may be controlled in conjunction with the bin designation.

(6) Example of the disaster of the invention The number of pins is now 16, that is, each character is made of a selected array of 16 dots in the vertical and horizontal directions], and line breaks are usually at SO pitch (1 pitch refers to the spacing between adjacent bins). , Yokokei-sensha Normal character-line spacing is assumed, and the position of the horizontal Kei-sen is assumed to be the position of the sixth bin from the top when the bin head is in the normal printing position. For convenience of explanation, it is assumed that the 16 bins of the nine-bin head are numbered from 1 to 16 from the top Km of the letters. The line feed is a mechanism that can feed the pitch in one step when printing only normal characters, and can feed subdivided by one pitch when printing horizontal lines. shall be taken as a thing.

Figure 1 shows the positional relationship in the case of printing line breaks.

In the case of character printing, Figure (a) shows line breaks of JIO pitch. Figure (b) shows a case where the middle row is printed with horizontal lines. If you want the next line to be a horizontal line after printing the characters on the first line, how many pitches should the line feed be? The position of the horizontal Kei line is
Since the position of the bottle head is the position of the Homare bottle at the position where the easy-pitch line break is made, it is only necessary to make a His-pitch line feed when printing horizontal lines using the incense bottle. If you are printing with the 7th pin, s1 pinch, and similarly if you are printing with the 4th pin, ink 2
Pitch, on the other hand, if it's the 9th bin! ! Pitch, 2I pitch for the 1st bin] Generally, the line feed pitch IIL when trying to print a horizontal line on the nth bin.
#fi Number of pitches ÷ S@-n However, 1≦n≦14. In other words, when transitioning from normal character lines to horizontal line printing, it is necessary to know the bin number to be used for horizontal line printing.
Then, the number of line feed pitches is uniquely determined.

When printing normal characters again on the line next to the horizontal line, press 1
Since the second line is to be printed including the horizontal line from the first line, the line feed should be 40 pitches counting from the first line. However, since the horizontal line printing has already been moved by S8-n pitches, it is better to move it by 220n pitches, which is 60 minus S@-n.

Next, if you need to hit only horizontal lines in several rows in a row, first use the nth pin and the next line use the n7th pin, so the pitch is so-(!I'-n). It is best to move only the Therefore, if we always use the next bottle number, nI is always 1, so 29 pitches I
If you move it, it will be a problem. However, 1 from pin 16
Only at 6 o'clock when moving to the number bin, it is necessary to move 1511-)-15=45 pitches. - FIG. 2 is a diagram showing the systematic operation of printing consisting of the above basic operations. In the figure, 1 is an LP driver, 2 is an LF motor, and 6 is a head bin. After a command to start printing is given, an operation according to a predetermined twin interface command is first performed, and then a selection is made between normal character printing and horizontal highlighted line printing. - No matter which one is selected, the pitch to set the line feed pitch depends on whether the previous line was a normal character or a horizontal key line, so the LP
A pointer is now set. This LF voitor instruction is transmitted to the LF motor 2 via the LP driver 1, and is set and line feed is performed for nine pitches.

In the case of horizontal line printing, in addition to the above, the number of the bottle used is set in the bottle pointer. In this embodiment, the next numbered bin is set to be used for each row of horizontal lines. However, since there are 16 head pins, the next ti after the 16th bottle returns to the 1st pin. Pin number information set with a bin pointer! □The specified bin will be sent to the Radobin 5 for one company and will be printed with horizontal lines. Information that the printing operation has been performed in this manner is entered into the input of the interface command as information on the previous line printing for the next line.

(7) Effects of the Invention According to the present invention, it is possible to sequentially change the bins used for horizontal line printing, so it is possible to avoid problems such as when only a specific bin wears out quickly or because the electromagnetic coil for driving that bin operates at a high rate. Eliminates the harmful effects of overheating and dielectric breakdown, extending the life of the head pin and improving reliability.

[Brief explanation of drawings]

Figure 1 is a diagram showing the positional relationship in the case of company printing line feed, and Figure 2 is a diagram showing the printing operation system. 1... LP driver 2... LF motor Fig. 1

Claims (1)

[Claims] In a wire tod matrix type serial printer, bins to be used for printing horizontal lines are selected alternately from among the printing bins, and the printing position of the horizontal lines is set to a predetermined position according to the arrangement position in the bin head of the selected nine bins. A dot printer's horizontal line printing method is characterized in that line feed is performed at intervals that are an integral multiple of the bin pitch.