JPS61211073A - Electronic typewriter - Google Patents

Abstract

PURPOSE:To enable to print according to a predetermined format of a paper, by correcting margin positions or tab positions either automatically or by an operator's choice when a deviation from a prescribed position is detected at an end of an inserted paper. CONSTITUTION:The presence or absence of a paper 31 is detected through a change in a detection level, and when the paper 31 is absent, a carriage is moved to a left margin LM. When the paper 31 is present, the carriage is moved rightward by a one-character amount at a time until the end of the paper is detected while reading an output from a photosensor, thereby calculating the deviation R of the paper end in terms of the number of characters. In the case of automatic correction, a new left margin LM-R, a new right margin RM-R and new tabs Tab1-R and Tab2-R are calculated, and the carriage is moved to the new left margin LM-R. In the case of manual correction, the size of the left margin LM for the inserted paper 31 is calculated in terms of number of characters on the basis of a preset left margin LM and the deviation R, is displayed on a display device, and a line format is corrected when a converting key is depressed.

Description

Detailed Description of the Invention (Technical Field) The present invention relates to an electronic typewriter, and more particularly, the present invention relates to an electronic typewriter. The present invention relates to an electronic typewriter that can be corrected manually or by key operation commands.

(Prior Art) When creating a document in an electronic typewriter, the format of the document is first determined by setting a left margin and a right margin, as well as setting print intervals and line intervals.

In the case of a large electronic typewriter in which a display device, a keyboard, and a printer are separate, after a document is created, paper is usually inserted into the printer automatically or manually and printed. At this time, there is no problem when the paper is inserted at the pre-specified position, but if the paper is inserted at a position shifted from the pre-specified paper position, if you print as is, the document will be printed with margins different from the pre-set margins. is printed. In particular, when printing the same document or multiple copies of the same document, there is a risk that the document will be printed in a different position on each sheet, resulting in a decrease in the quality of the created document.

In addition, a small electronic typewriter that incorporates a keyboard, display device, and printer,
Printing is often performed at the same time as document creation. In such cases, margins and tabs are set when creating a document, but if the paper position changes each time the paper is replaced, not only the margins will change, but the tab position will also change with respect to the paper. . Therefore, it is necessary to reinsert a new sheet of paper or redo margin settings and tab settings, which requires a troublesome operation from the operator.

(Objective of the Invention) Therefore, the present invention detects the end face of the inserted paper, and if the paper position deviates from the specified paper position, inserts the margin position or tab setting position automatically or according to the operator's selection. An electronic typewriter that can print documents according to the specified paper format without any troublesome operations by adjusting the paper position.
is intended to provide.

(Structure of the Invention) In order to achieve the above object, the present invention includes a paper edge detection means for detecting at least one end face of the inserted paper in the row direction, and a paper edge detection unit that detects at least one end face of the inserted paper in the row direction. The present invention is characterized by comprising: a calculation means for calculating a deviation from the inserted paper position; and a correction means for correcting a preset margin position to match the inserted paper position based on the calculation result of the calculation means. It is an electronic typewriter.

Hereinafter, the present invention will be specifically explained based on examples.

1 to 7 are diagrams showing one embodiment of the present invention.

This embodiment is applied to a small electronic typewriter in which a keyboard, a display device, and a printer are integrated.

First, the configuration will be explained.

In FIG. 1, the exterior of an electronic typewriter 1 is formed by an under cover 2 and an upper cover 3.
A top cover 4 is attached to the upper cover 3 so as to be openable and closable. Electronic typewriter 1 has keyboard 5
In addition to having a display device W6, a printer 7 is built inside the top cover 4. The display device 6 is a liquid crystal display device that uses liquid crystal! (LCD), and displays information entered using the keyboard 5. In the printer 7, a carriage 8 shown in FIG. 2 is equipped with a printing mechanism, moves along a platen (not shown), and prints on paper set on the platen. The printer 7 is a so-called daisy printer, and the printing mechanism mounted on the carriage 8 includes a daisy wheel having printed characters, a selection solenoid that rotates the daisy wheel to select the printed characters, and a hammer 9.
Hammer solenoid 10 that drives and strikes the printing type.
, etc. Further, this carriage 8 is moved along the platen by a printing interval by a space motor (SP motor).

An optical sensor 11 is attached to the side surface of the carriage 8 as a paper edge detection means. The optical sensor 11 projects light toward the platen and detects the edge surface of the paper set on the platen using the reflected light.

This electronic typewriter 1 is controlled according to the control block shown in FIG.

That is, in FIG. 3, information input from the keyboard 5 is input via the keyboard controller 22 to a computer 26 mainly composed of a CPU 23, a ROM 24, and a RAM 25.
According to the program stored in the M24, information input from the keyboard 5, the left sensor 27 of the printer 7 (detects the home position of the carriage 8), and the wheel sensor 28 (detects the position of the daisy wheel)
and take in information from the optical sensor 11,
Processing is performed while exchanging information with AM25. The processing results are output via the display device controller 29 and printer controller 30,
It is displayed on the display device v16 or printed on the printer 7.

Next, the effect will be explained.

When creating a document, set the left margin LM and right margin RM as shown in FIG. 4(a), and then set the tabs Tab1. Set Tab2 and create a document.

As in this embodiment, when using a small electronic typewriter, one document is usually produced in one batch.

Print that one line on paper and create the next line of the document. Therefore, when creating a document, it is necessary to print the paper to the printer 7.
However, as shown in FIG. 4(b), the paper 31 is now set at a predefined paper edge position T. When inserted at a position Ti shifted from.

The left margin is widened by the shift R, and the right margin is narrowed by the shift R.

Therefore, the electronic typewriter 1 of this embodiment is shown in FIG.
As shown in Q), the left margin LM, right margin RM, and tab Ta are adjusted by the amount of deviation R of the paper 31.
Move and correct b 1, T a b 2, etc., and paper 31
The document is printed at the position specified in advance for the document format.

This correction will be explained below based on the flowchart shown in FIG. Note that P□ to P in FIG. 5 indicate each step of the flow.

First, after inserting the paper 31, the paper insert 1 key or the paper insert 2 key of the keyboard 5 is pressed depending on whether the line formats such as the left margin LM and right margin RM are to be automatically corrected or manually corrected.

Then, in step P□, the center points of the left margin LM and right margin RM are calculated, and in step P2, the autoset solenoid is driven to free the pail roller (the roller that feeds the paper along the platen). . In step P3, the SP motor (space motor) is driven to move the carriage 8 to the center of the left margin LM and right margin RM, and in step P4, the LF motor (line feed motor) is driven to automatically insert the paper 31. do. In step P5, the drive of the autoset solenoid is stopped, the pail roller is returned to its original position, and the paper 31 is pressed against the platen. In step P6, the SP motor is driven to move the carriage 8 to the left end. At this time, depending on whether the level of the optical sensor 11 has changed, the presence or absence of paper 31 is detected in step P7. .

If there is no paper 31 (no paper 31 inserted) in step P, the SP motor is driven to move the carriage 8 to the left margin LM in step P9, and this flow ends.

When there is paper 31 in step P (when paper 31 is inserted), step P is performed. Then, the SP controller is driven to move the carriage 8 in the write direction by one character, and the output of the optical sensor 11 is read in step P. In step P1□, it is determined whether or not it is at the edge of the paper, and if it is not at the edge of the paper, the step P is performed. Repeat step P1□ from. If it is determined in step P□2 that the paper edge is present, the deviation of the paper edge is calculated in step PL3. As shown in FIG. 4(b), this paper edge deviation R is defined as the distance P from the left end to the predefined paper edge T0.
Then, in the steps P to P1□, the distance from the left end to the end surface of the inserted paper 31 is detected as the number of characters, so it is calculated by a linear equation.

This shift R is calculated as the number of characters, and takes a negative value when the paper 31 is shifted in the left direction.

Next, in step Pyu, the paper insert key is set to 1.
or 2, and if it is paper insert 1, automatic correction is performed, so step P1. Then, new left margin LM-R, right margin RM-R, and tabs Tab1-R and Tab2-R corresponding to the deviation R are calculated and corrected as shown in FIG. 4(c). Step P1
s, drives the sP motor to move the carriage 8 to step P.
The process moves to the new left margin LM-R calculated in step i5, and this flow ends.

Step P1. Then, when the paper insert key is 2, step P1. Then, from the preset left margin LM and the deviation R, calculate the size of the left margin LM for the inserted paper 31 as the number of characters,
Step P1. Then, as shown in FIG. 6, it is displayed on the display device 6.

At step P, it is determined whether or not a conversion key has been input, and if it has been input, the process proceeds to step P1s to correct the line format. If the conversion key is not input in step P, the line format is not corrected and the flow ends.

Therefore, the paper edge of the inserted paper 31 can be detected, and the line format such as the left margin LM and right margin RM can be corrected automatically or based on the operator's selection.

A document can be printed accurately according to a preset format without performing troublesome operations such as reinserting the paper 31.

In addition, the above step P work. Step P13 deviates from R
The above-mentioned step P□ to step P function as a correction means to correct the line format according to selection.

Further, the above step P17 is omitted, and the deviation R calculated in step P13 is as shown in FIG.

The amount of shift of the paper 31 may be displayed on the display.

In the above embodiment, only the left edge of the paper is detected, but the present invention is not limited to this, and both edges may be detected, or only the right edge may be detected.

(Effects) The present invention can correct the margin position and tab setting position to match the inserted paper position when the inserted paper position deviates from the specified paper position, so there is no need for troublesome operations. , documents can be printed accurately according to preset formats.

[Brief explanation of drawings]

1 to 7 are diagrams showing one embodiment of the present invention, in which FIG. 1 is an external view of the electronic typewriter, FIG. 2 is a perspective view of the carriage with the optical sensor attached, and FIG. Figure 3 is a control block diagram of the electronic typewriter, and Figure 4 (
a) to (c) are explanatory diagrams of the operation, FIG. 5 is a flowchart showing the operation, and FIG. 6 is a display diagram of the operation.
FIG. 7 is a diagram showing another example of the display display. 1...Electronic typewriter-5...Keyboard 6...
・Display device 11... Optical sensor (paper edge detection means) 26... Computer (calculation means, correction means) 31... Paper

Claims (4)

[Claims] (1) (a) Paper edge detection means for detecting at least one edge of the inserted paper in the row direction, and (b) Calculating the deviation between the detected paper edge and a predefined paper position. (c) correction means for correcting a preset margin position to match the inserted paper position based on the calculation result of the calculation means. (2) The calculation means has a function of calculating the deviation as the number of characters to be printed and displays the number of characters to be printed, and the correction means has a function of selecting whether or not to perform the correction by operating a key. An electronic typewriter according to claim 1. (3) The calculating means has a function of calculating the distance between the detected edge of the paper and a preset margin position as the number of printed characters based on the deviation, and displaying the number of printed characters on a display. An electronic typewriter according to claim 1. (4) The electronic typewriter according to claim 1 or 3, wherein the correction means has a function of correcting not only the margin position but also the tab setting position.