JPS62199480A - Electronic typewriter - Google Patents

Abstract

PURPOSE:To enable legible documents having excellent matching to be prepared by effectively utilizing right and left margins within a printing range which are already set when operated in document processing mode even in printing output concerning arithmetic operation in calculation processing mode. CONSTITUTION:During an ordinary document processing mode operation, a printing range is set by right and left margin keys 22, 23, and printing output is performed according to the range. Here, when the calculation processing mode is accessed by operation of a mode switching key 21, a main control 11 positions a carrier to a left margin which is preserved in a left margin preservation region 12 through control of a drive 31. After this, the second operand and the first operand entered from a keyboard 2 and the operational results obtained at the main control 11 are printed through input of an operator. At that time, the carrier drive 31 and a line feeder 32 are controlled to carry out a line feed and return operation. Thus documents can be prepared with excellent matching.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electronic typewriter having a calculation function.

There is a trend, and one of these types of functions is a calculation function. When performing a calculation function on a conventional electronic typewriter, when the operands, operands, and operation results are printed, they ignore the set margins and are printed as quickly as possible within the printable area of the printing paper. It was a long time ago.

[Problem that the invention seeks to solve]

As mentioned above, when calculations are performed using an electronic typewriter with calculation functions, the printout ignores the already set margins and prints entirely within the printable area of the printing paper, which may cause problems with the various functions of the typewriter. Considering this as one thing,
It was difficult to use because the printing position was not consistent with the printed characters printed by a typewriter, and the function was half-finished.

(Means and effects for solving the problem) In view of the above-mentioned drawbacks of the prior art, the present invention makes effective the left and right margins, which are already set printing conveniences, even in print output related to calculations in the calculation function, and type To make an electronic typewriter easy to use as one of the functions of an electronic typewriter by ensuring consistency with the printing position of printed characters when used as a writer.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an electronic typewriter according to an embodiment. 1 is the device body, 2 is the keyboard, 21 is the mode switching key for switching between document processing mode and calculation processing mode, 22 is the left margin key for setting the left margin, 23 is the right margin key for setting the right margin, 3 is the right margin key This is the printer section. 11 is a main control unit that controls the entire device; 12 is a left margin storage area where the current left margin value set using the left margin key 22 is saved; 13 is a current right margin value set using the right margin key 23. 14 is an operand storage area where operands are stored, 15 is an operand storage area where operands are stored, 16 is an operation result storage area where calculation results are stored, 17 is a ROM that records a program according to the flowchart shown in FIG. 2; 18 is a carrier position counter whose contents change in conjunction with the position of the carrier; and 19 is a character that stores the character pitch amount of characters to be printed. A pitch amount storage area, 31 is a carrier drive section, and 32 is a line feed section.

In the above configuration, in the document processing mode when used as a normal typewriter, the printing range on the printing paper is set using the left margin key 22 and the right margin key 23, and printing is performed accordingly. Then, when the calculation processing mode is called up by operating the mode switching key while the typewriter is being used, and the starting function is used, the main control section 11 moves the carrier to the left margin position stored in the left margin storage area 12 using the carrier drive section 31. control and position. Thereafter, the operands and arithmetic numbers input from the keyboard section 2 or the operation results obtained from the main control section 11 are printed by inputting the operator. At this time, if printing one character exceeds the right margin stored in the right margin storage area 13, the main control unit 11 controls the carrier drive unit 31 and line feed unit 32 before printing. Perform line feed/carriage return.

FIGS. 2(a) and 2(b) are flowcharts in which the above-described operations are implemented by executing a program stored in the ROM 18. In step (S)1, the carrier is positioned at the left margin. In S2, numerical values, operators, and control keys are input from the keyboard. The input key is determined in S3, and if it is a control key, the carrier is moved or line feed is performed in S6.
Make a comeback. Go to S6a and press the left margin key 22.
It is determined whether the right margin key 23 has been pressed, and if it has not been pressed, the process returns to S2; if it has been pressed, the process proceeds to S6b, where the values of the left margin storage area 12 and the right margin storage area are updated, and a new margin is created. Set. Move and return to S2. If it is determined in S3 that the key is a numeric key, the process returns to S2 and the next manual operation is performed. At this time, the input value is stored in the operand storage area 14 or the operand storage area 15 through 33a. If the determination in S3 is an operator, S
The calculation is performed in Step 4, and the calculation result is stored in the calculation result storage area 16, and printed in Step S5.

FIG. 2(b) shows details of step (S)5 in FIG. 2(a). In S7, the value of the carrier position counter 18 indicating the current carrier position and the value of the character pitch amount storage area 19 indicating the character pitch amount of the next character to be printed are added. S8
Then, the value obtained in S7 is compared with the value in the right margin storage area 13, and it is determined whether or not the next character will exceed the right margin when printed. If the result of the determination is that it exceeds the right margin, the process proceeds to S9, where a line feed and return are performed, and then the process proceeds to SIO. Also, if it is determined in S8 that the right margin is not exceeded, the process proceeds to S10 and the corresponding character is printed. Further, proceed to Sll and determine whether all characters have been printed. If all characters have been printed, skip this process. If not all characters have been printed yet, return to S7 and proceed to the next step. Processes printed characters. It goes without saying that the contents of the printout can include not only the calculation results but also the operands and the calculation numbers.

[Effects of the Invention] By executing the calculation function with the electronic typewriter having the calculation function according to the present invention and making the printout in the calculation process follow the already set margins of the printing paper, it is possible to achieve consistency with the characters printed by the typewriter. This makes it possible to create sentences and handwriting that are easy to read, and it becomes possible to actually use the calculation function as one of the functions of the electronic typewriter.

[Brief explanation of drawings]

The IT diagram is a block diagram of an electronic typewriter according to an embodiment of the present invention, and FIGS. 2(a) and 2(b') are flowcharts showing operations when executing a calculation function according to an embodiment of the present invention. In the figure, 1-main body section, 2-keyboard section, 3-printer section, 11-main control section, 12-left margin value storage area,
13 - right margin value storage area, 14 - operand storage area, 1
5-operation number storage area, 16-operation result storage area, 17-RO
M, 18-carrier position counter, 19-character pitch amount storage area, 31-carrier drive section, 32-line feed section.

Claims (1)

[Claims] a margin setting means for setting a printing range of printing paper; a document processing mode for performing document processing; a calculation processing mode for performing calculation processing; a mode switching means for switching between the two modes; and the printing set by the margin setting means. An electronic typewriter characterized in that the range is valid in both of the modes.