JPH06104371B2 - Printer - Google Patents

Description

TECHNICAL FIELD The present invention relates to a printer such as a printer or a laser writer that prints text data stored in a memory at a predetermined line feed interval.

<Prior Art> In this type of printing device, when a memory such as a floppy disk storing text data is mounted and a print command is issued by a key operation or the like, a print operation is executed, and when the operator executes a line feed code. Alternatively, when the device automatically issues a line feed command by word wrap or the like, line feed is performed at a line feed interval preset in the device, for example, a line gap of 1/6 inch or 1/8 inch.

<Problems to be Solved by the Invention> However, in any conventional printing device, when a line feed command is issued, line feed is unconditionally performed according to the set line spacing. Therefore, for example, as shown in FIG. In some cases, only 5 lines are printed on the printing paper P3 on the 3rd page after printing on the printing papers P1 and P2 on the 2nd and 2nd pages, and most of the printing paper P3 on the final page is printed. It is blank and very uneconomical. Also, the text will be stretched as a whole, so the operator can change the line feed spacing by looking at the print results, or manually change the line feed spacing for each line, and then print again to recreate the text. However, there is a problem in that not only the printing paper initially printed is wasted, but also the operator is forced to perform a very complicated operation.

The present invention has been made in view of the above conventional problems, and when the amount of text data corresponding to the final page is small, the text data is printed on the second sheet or the entire number of sheets from the last. It is a technical object to provide a printing device capable of automatically allocating and printing on paper.

<Means for Solving the Problems> According to the present invention, as a technical means for achieving the above-mentioned objects, a printer is configured as follows. That is, in the printing device which stores the inputted text data and prints the text data on a printing paper by line-feeding the text data by a print command, all the text data to be printed before the printing process. The total line feed interval amount calculating means for calculating the total line feed line amount and the line feed interval amount for one page according to the calculated total line feed interval amount and the paper information of the paper format memory, the end line number of the final page is calculated. An end line number calculating means, a determining means for determining whether or not this end number can be assigned to another page by changing the line feed interval amount, and a line feed only when it is determined by this determining means. It is characterized in that it is provided with a line feed space amount changing means for changing the space amount. <Operation> When a print command is issued, it is set prior to the print processing. If character paper is specified, the paper information about the print paper is read from the paper format memory, the total line feed interval amount of all text data to be printed is calculated, and the calculated total line feed interval amount is calculated as one page. The number of end lines on the last page is calculated by dividing by the line feed interval amount of minutes. Next, when the line feed interval amount is made smaller than the set value by one unit, it is determined whether the text data of the end line number can be allocated to the printing paper of the second page from the last or other printing paper except the last page. If it cannot be allocated, it is printed as it is, but if it can be allocated, it is printed with the line feed interval amount changed. Therefore, even if the operator does not perform a complicated operation, it is possible to reliably prevent only a few lines of text data from being printed on the final page.

<Example> Hereinafter, a preferred example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a block configuration of an embodiment of the present invention when applied to a Japanese word processor. A central processing unit 1 including a controller 1a and an arithmetic unit 1b is based on a program stored in a ROM 2 in advance. A text data memory of the storage unit 5, which controls the entire apparatus, processes the text data input by the text data input unit 3a of the operation unit 3 and performs signal processing.
It is stored in 5a and displayed on the display 4. Also,
The paper format memory 5b of the storage unit 5 stores information about the print paper such as the length of the paper, the width of the paper, the print start line, and the print end line, and the operation of the paper format setting unit 3b of the operation unit 3 is performed. In response to an instruction from the storage unit 5, predetermined information of the printing paper stored in the paper format memory 5b of the storage unit 5 is read out, and the line feed interval amount is calculated based on this paper information and the text data in the text data memory 5a. Calculated in 1b, the drive of the paper feed mechanism 7 is controlled according to the calculated line feed line spacing amount, and the sentence data memory
The drive of the printing mechanism 6 is controlled by the text data of 5a.

FIG. 2 shows a flow chart of an operation of automatically correcting the line feed interval amount which is performed prior to the printing operation of the above-mentioned embodiment, which will be described below. When a print command is issued by the operation unit 3, first, it is determined whether or not the operator has performed an operation for instructing the automatic correction of the line spacing (step S1). If it is operated that the automatic correction of the line spacing is unnecessary, the process jumps to step S9 and the printing process is performed in the same manner as the existing device, and the printing paper of the final page is printed as shown in FIG. Only 5 lines are printed.

On the other hand, when it is operated that the automatic correction of the line spacing is required, the total line feed interval amount of all the text data stored in the text data memory 5a, that is, the total line feed interval amount is one line after the line feed. Calculated by multiplying the line feed spacing (step
S2).

Next, the required paper information is read from the paper format memory 5b by the operation of the paper format setting unit 3b (step S3), and the line feed interval amount that can be printed on one printing paper is obtained from this information.

Then, add the total line feed spacing calculated in step S2 to step S3
The total number of pages, that is, the required number of print sheets, is calculated by dividing the line feed interval amount for one page obtained in step S (step S
4) Then, it is judged whether or not the calculated total number of pages is the same as 1 or smaller than 1 (step S5). If the amount of paper is contained in one print sheet, it is not necessary to correct the line spacing, and the process jumps to step S9 to perform print processing.

On the other hand, if the total number of pages is greater than 1, step
The fractional part of the total number of pages calculated in S4 is multiplied by the line feed interval amount for one page, and this calculation result is divided by the line feed interval amount of one line to perform the end line number computation processing (step S6).
Further, the number of lines obtained by adding the number of lines for one page to the calculated number of end lines is multiplied by the amount of line feed interval which is one unit smaller than the set line feed gap amount, and the calculated result is the line feed gap amount which is one unit smaller than the above. It is determined whether or not the line spacing can be adjusted depending on whether it is equal to or smaller than the line feed spacing for one page (step S7). If it is not possible, the print processing is performed as it is. After subtracting 1 from the number to change the line feed interval amount to be one unit smaller than the set value only on the final page (step S8), the printing mechanism 6 and the paper feeding mechanism 7 are drive-controlled based on the result. Printing is processed.

For example, if it is set to print 55 lines on one sheet of paper with a line feed interval of 8/48 inches, the text data with a total line feed spacing of 920/48 inches and 115 line feeds is printed. In this case, the line feed interval for one page is 440/48 inches, so if this text data is printed as set, it will be the number of end lines of 2 pages and 5 lines as shown in Fig. 4, and the end line The total number of line spacing is 40/48 inches. If you change the line feed spacing on the second page from 8/48 inches to one unit smaller, 7/48 inches, the number of lines that can be printed on one page is 62 lines due to the line feed spacing of 7/48 inches. ,
As shown in FIG. 3, a total of 60 lines, 55 lines on the second page and 5 lines at the end, can be printed on one sheet of printing paper P2 on the second page.

The present invention is not limited to the above description and the contents of the drawings, and may include various modifications without departing from the scope of the claims. For example, in the above-described embodiment, the case of allocating the end row number to the last page has been described, but it is also possible to allocate it to all pages evenly.

<Effects of the Invention> As described above, according to the printing apparatus of the present invention, the number of end lines of the final page is calculated prior to the printing process, and the text data of this end number is calculated based on the line feed interval amount from the set value. Also determines if it can be allocated to other pages by changing it to a smaller value,
When it can be allocated, the line feed interval amount can be automatically changed and the printing can be performed. Therefore, the printing paper can be saved and the extended text can be prevented from being created without depending on the complicated operation by the operator.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a flow chart thereof, FIG. 3 is an explanatory view of a printing paper printed by it, and FIG. 4 is a printing paper printed by a conventional apparatus. FIG. 1 ... Central processing unit 3a ... Text data input section 3b ... Paper format setting section 5a ... Text data memory 5b ... Paper format memory 6 ... Printing mechanism 7 ... Paper feeding mechanism

Claims (1)

[Claims] 1. A printing device for storing input text data and for printing the text data on a printing paper by line-feeding the text data by a print command at predetermined set line intervals, should be printed prior to printing processing. The total number of line feed intervals for calculating the total amount of line feed intervals for all text data, and the calculated number of line feed intervals and the amount of line feed for one page according to the paper information in the paper format memory, and the number of end lines of the final page. It is determined that the number of end lines can be assigned to this page, the determination unit that determines whether the number of end lines can be assigned to another page by changing the line feed interval amount, and this determination unit. A printing apparatus comprising: a line feed interval amount changing means for changing the line feed interval amount only occasionally.