JPS6238931A - printing device - Google Patents

Abstract

PURPOSE:To eliminate the need to generate a complicate program and to easily discriminate respective printed data by printing data from the print start position of a desired line when it is judged that the number of characters of data to be printed is larger than the upper-limit number of characters which can be printed on one line. CONSTITUTION:When a program list from a host computer 2 is printed, the print start position of the 2nd line is inputted and set with a print-out position setting switch 15 if data of one line is so long that it requires another line, and the switch is connected to an I/O port 7 through a print-out position fetch circuit 16. The program is stored in a ROM 6 and this printing device is provided with a character number judging function for judging whether or not the number of data of one line is larger than the upper-limit number of characters which can be printed on one line and a printing function for printing data on the 2nd and succeeding lines at the print start position inputted with the print-out position setting switch 15.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement of a printing device having a function of printing data such as a program list transmitted from a host computer, for example.

[Conventional technology]

Some printing devices are configured to be able to communicate with a host computer, and in addition to the normal print processing function of printing instructed data, these printing devices also receive program lists transmitted from the host computer. It has a function to print this. In this case, since the program list data is divided into multiple lines on the line number side, the host computer inserts a space after the line number and one
A print instruction signal is sent to the end position of line number data transmission. Therefore, the printing device temporarily stores the data from the host computer for each line number, and prints the data for each line number when a print command signal is input. By the way, when printing, if the number of characters that can be printed in one line with the printing device is, for example, 40 characters, and the number of data characters in one line number is greater than this number of characters that can be printed (1
(line bar full) will be printed over multiple lines. FIG. 5 shows a printed example of this program list, in which data of line numbers rloOJ and r200J are printed. In this way, the 100-line number data is printed over two lines, and the second line starts printing at the same position as the first line.

[Problem that the invention seeks to solve]

However, when the above-mentioned printing is performed, it is very difficult to identify and distinguish the data for each line number, and furthermore, the data printed on the line following line numbers rLOOJ and r200J is as shown in Figure 5. Like r, 17g...
・Since the numbers are "J rol, l...", it is difficult to distinguish them from line numbers. Therefore, it may be possible to change the printing start position from the second line so that the line number is easier to distinguish.In this case, the host computer may be equipped with a function to send an instruction signal for the print start position of the second line. Therefore, creating a program for the host computer becomes complicated.

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, it is an object of the present invention to provide a printing device that can eliminate the need for complicated program creation in an external device and can print data in a way that makes it easy to distinguish between printed data.

[Failure to solve the problem]

The present invention provides a print position setting means for inputting and setting the print start position of each line of data, a character count determination means for determining whether the number of characters in the data is greater than or equal to the number of characters that can be printed in one line, and a number of characters that can be printed by the character number determination means. ''-, the printing device is provided with a printing means for printing data from the desired number of lines from the print position start position to achieve the above object.

[Effect]

The present invention is provided with each of the above two means, so that when it is determined that the number of characters of data to be printed is greater than the number of characters that can be printed in one line, printing is performed on the desired number of lines in order to distinguish it from the next data, etc. Print data from the starting position.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a printing device. In the figure, W1 is a printing device, and this device W1 is configured to be able to transmit data to and from a host computer 2. As shown in FIG. CPU
(Central processing unit) 3 includes an address bus, a data bus,
ROM via an internal bus 4 consisting of a control bus.
(Read-only memory) 5, PAM (Random)
access memory) 6 and Ilo, (input-output) port 7 are connected, and furthermore, a CA control circuit 9 of a CA (carriage) motor 8 is connected to this I10 port 7.
, a paper feed control circuit 11 of the paper feed motor 10, and a dot head control circuit 13 of the dot head 12 are connected.

An interface control circuit 14 for data transmission with the host computer 2 is connected thereto.

Now, 15 is a firing position setting switch, which means that when printing the program list from the host computer 2, the data of the first line number cannot be printed at the first line and moves to the next second line. This is for inputting and setting the printing start position of this second line when printing, and is connected to the I10 port 7 via the ejection position acquisition circuit 16-5. Further, the ROM 6 stores a program according to the printing flowchart 1 shown in FIG.
3 issues each print command and has the following functions. In other words, there is a character count judgment function that determines whether the number of characters in the data in one line number of the program list is greater than or equal to the number of characters that can be printed in one line (one line buffer full), and when it is determined by this number of character judgment function that it is greater than or equal to the number of printable characters. , the desired number of lines This is a printing function that prints data from the second line from the print position start position □ inputted by the print position setting switch ↑5.

Next, let's talk about the operation of the device configured as above.
Explain according to the printing flowchart shown in Figure 2.
Here, the printing operation is performed as follows.

That is, when paper is set, the CA control circuit 9 drives and controls the CA motor 8 to position the dot head 12 at the normal printing start position (left margin) at the left end of the paper. Here, the C'A motor 8 is driven to move the dot head 12 to the right at a predetermined speed, and at the same time, when the dot head 12 control circuit 13 prints print data for one line of the dot head, the paper feed motor 10 is activated. The dot head 12 is driven to feed the paper a predetermined length, and then the dot head 12 is moved to the left margin again to print the next line. Here, when the program of the host computer 2 is in a state to be printed, after the initial processing is executed, it is determined whether the printing start position has been set to the firing position setting switch 15.

That is, when printing the program list, the printing start position of the second line is set in the ejecting position setting switch 15 when the first line cannot be printed and the printing is moved to the second line. Here, assuming that the printing start position is from the fifth character, this is read by the printing position setting switch 16, passed through the I10 port 7, and temporarily stored in the RAM 5 by a command from the CPU 3. When program list data is transmitted from the host computer 2 in this state, it is confirmed and temporarily stored in the RAM 6 via the interface control circuit 14 and the I10 port 7 according to a command from the CPU 3. Then, the data of one line number in the stored program list is read and one line buffer full (40
character). As a result of this determination, if the number of characters that can be printed in one line is less than or equal to the number of characters that can be printed in one line, data of that line number is printed from left margin A.

On the other hand, if it is determined that the number of characters is greater than the number of characters that can be printed, the first 40 characters in one line are printed starting from the left margin A, as shown in FIG. When printing of this line is completed, line feed processing is performed to read out the launch start position B stored in the RAM 6, and data is printed from this launch start position B from the second line. Therefore, from the second line onwards, the third
As shown in the figure, from the bottom of rDATAJ, r, 178...
" is printed. Next, the CPU 3 reads the data at line number 200 and determines whether the 1 line is full. If the 1 line is full, the CPU 3 prints the data at line number 200 from the second line as shown in FIG. Let the starting position be from B. In this way, the data of the following line numbers are printed.

In this way, in the above embodiment, when it is determined that the number of data characters for one line number of the program list is greater than the number of printable characters for one line, the second line number is printed to distinguish it from the line number data. Since data is printed from printing start position B, there is no need to create a complicated program on the host computer 2, and the printing position can be set arbitrarily on the printing device 1, making it easy to see and distinguish data for each line number. It becomes easier to do. Therefore, the processing amount of the host computer 2 can be reduced.

Note that the present invention is not limited to the above embodiment. For example, when printing greeting data transmitted from an external device as shown in Figure 4, there is also a function that inserts a space at the beginning of the first line when the first line is full. can.

〔Effect of the invention〕

As described in detail below, according to the present invention, it is possible to provide a printing device that can eliminate the need for complicated programming in an external device, and can print data in a manner that allows each piece of printed data to be easily distinguished.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a printing device according to the present invention, and FIG. 2 shows printing flowcharts 1 and 3 of the printing device according to the present invention.
FIG. 4 shows an example of printing by the apparatus of the present invention, FIG. 4 shows another example of printing by the apparatus of the invention, and FIG. 5 shows an example of printing by the conventional apparatus. 2...Host computer, 3...CPU, 5...
・ROM, 6...RAM, 8...CA motor, 10
. . . Paper feed motor, 15 . . . Embossing position setting switch, 14 . . . Interface control circuit.

Claims (1)

[Claims] In a printing device in which the number of characters that can be printed in one line is determined and that prints by receiving data transmitted from the outside, there is provided a printing position setting means for inputting and setting a printing start position of each line of the data; a number of characters determining means for determining whether the number of characters is greater than or equal to the number of characters that can be printed in one line, and a printing that prints the data from a desired number of lines from the printing position start position when the number of characters is determined by the number of characters determining means to be greater than or equal to the number of characters that can be printed. A printing device characterized by comprising means.