JPS60110481A - Electronic typewriter - Google Patents

Abstract

PURPOSE:To enhance operability, by calculating the difference of the printing start line of a print text and a preset printing start line and correcting the latter to the printing start line of said print text before feeding paper. CONSTITUTION:A main controller 61 reads the data of the printing start line position n0 of a preset format from format memory 66 and a printer controller 71 outputs data for indicating line feed corresponding to n0-lines. In this case, the difference of the printing start position n0 and the read printing start position m0 is calculated and outputted to the printer controller 71. By this mechanism, the printer controller 71 performs the drive control of a line feed motor 22 and feeds paper to the indicated new line or reverse new line direction by the amount only corresponding to (n0-m0) lines.

Description

DETAILED DESCRIPTION OF THE INVENTION Addressed to No. 11 This invention relates to an electronic typewriter having an automatic paper feeding function.

Generally speaking, in electronic typewriters, by inputting text from the keyboard, the text is stored in a text memory, and the created text is repeatedly printed by recalling the contents of this text memory. It is now possible to do so.

Conventionally, such electronic typewriters have an automatic paper feeding function that automatically feeds the loaded paper up to a preset printing start line when printing text, and the printing start line is set by automatic paper feeding. There is a system in which printing is started from a preset printing start line by reading the text from the text memory after the printing has been performed.

However, if you start printing from the preset print start line in this way, if the print start line of the format of the text to be actually printed differs from the preset print start line, the format of the printed text will change to the format at the time of creation. It will be different.

Therefore, after reading the text from text memory,
There was a problem in that the paper had to be fed again until it reached the actual printing start line, resulting in poor operability.

1-”η Yu. The invention is co4. 'L: In view of this, even what could be done (1
, 1, and the purpose is to automatically correct paper feed up to the print start line of the print text to improve operability.

Shipsou and Uχ11- Hereinafter, the configuration of the present invention will be explained based on one embodiment.

FIG. 1 is an external perspective view showing an example of an electronic typewriter embodying the present invention.

This electronic typewriter has a keyboard 1 for inputting various text data, etc., and an arrow kiss! It consists of a printer 2 that prints . . . , a liquid crystal display (LCD) 3 that displays text etc. stored in a text memory, and a control section that will be described later.

The keyboard 1 includes a group of graphic characters 11 including a space key 11A, a backspace key 11B, and a return (line feed) key 11C, a left-hand margin key 12A and a right-hand margin key 12B for setting the printing width of paper, and a margin Margin release key 12C for releasing, setting tabs and clearing tabs (switching with shift key) Tabsera 1-・
A group of format setting keys 12 such as a clear key 12D, a start line set key 12E for setting a print start line, a group of function keys 13 such as a layout key 13A for instructing format settings, and other print keys 14A.
, a group of function keys 14 such as four paper insertion keys 14B for instructing automatic paper insertion and insertion.

FIG. 2 is a schematic plan view of the printing mechanism section of the printer 2 of this electronic typewriter.

In this printing mechanism, first, a platen 21 is rotatably attached to a frame 20, and a platen 21 for wrapping and feeding paper to be printed or printed is wound around the frame 20.

This platen 21 is connected to a gear train 2 by a paper feed motor (line feed motor) 22 fixed to the frame 20.
3 to automatically feed paper.

-,5- Also, this platen 21 is i! Knob 24゜2 on i end
5 is fixed, and can be manually rotated by turning the knobs 24 and 25 when loading or removing paper.

Further, in front of the platen 21, there is provided a paper pail 27 into which two rollers 26, 26 for pressing the paper against the surface are rotatably inserted. - A carrier and a screw 31 are mounted on the rod 28 and stay 29 fixed to the frame 120 so as to be movable parallel to the platen 21 in its axial direction.

This nine-carriage 31 includes a type wheel 32, a printing hammer 3!1 that hits the type on the type wheel 32, a selection motor 34 that rotationally drives the type wheel 32, and an encoder (selection) that detects the rotational position of the selection motor 34. sensor) 35 and ink ribbon! +
6 and a ribbon cassette 37 containing the ribbon.

This spear 31 is attached to the bottom plate of the frame 204-, and has an encoder (2) for detecting the rotational position.
1. Space sensor) 3 by the motor (space motor) 38 attached. The timing pulley 40 fixed to the rotating shaft and four pulleys 41 to 44 rotatably fixed to the frame 20 are stretched, and the space wire 45 fixed to the lower part of the carriage 31 is moved.

FIG. 3 is a schematic side view of the main parts of this printing mechanism. ,
- The paper pail 27 in FIG. 2 has a shaft 46 fixed to the frame 20 at both ends. It is supported by an arm 47 which is rotatably supported on the shaft.

This arm 47 moves the paper pail 27 to the platen 21 by means of a spring 48 attached to a shaft 46. It is biased in the direction of pressing it to the side. - The rear end 47a of this arm 47 is rotatably supported by a shaft 50 on a plunger 49a of a solenoid 4, and when the solenoid 4 is activated, the plunger 49. is pulled in the direction of the arrow, thereby rotating the paper pail 17 in a direction away from the platen 21.

Further, below the platen 21, a paper kite 51 that guides the paper P and a roller 52 that pinches and feeds the paper P between the platen 21 and the paper kite 51 are arranged.

FIG. 4 is a block diagram showing the control section of this electronic typewriter.

The main controller 61 of this control section is a circuit that also serves as paper feed correction control means that controls the entire electronic typewriter, and includes a CPU (central processing unit) 62, a program memory (ROM) 6'5. It is composed of a microcomputer consisting of a data memory (RAM) 64 and 10 (input/output device).

The text (sentence) memory 65, as shown in FIG.
It is divided into a text area 65A for storing text data and a format area 65B for storing data in the format of created text.

The format memory 66 stores format data that regulates the format 1- at the time of text output.

Note that the RAM 64° text memory 65 and format memory 66 of the main controller 61 may be physically constituted by one RAM.

The keyboard controller 67 controls data input from the keyboard 1 and controls LEDs (not shown) attached to keys.
The LCD controller 68 is responsible for display control, etc.
Controls display control by LCD 3. Note that these keyboard controllers 67 and LCD controllers 6B also
It is composed of a microcomputer, etc.

Next, the printer controller 1-roller 71 of the printer 2 is composed of a microcomputer, etc., and is programmable.
Various data such as print character data, space (carriage movement amount) data, line feed data, etc. are input from the main controller 61 via a printer interface circuit 72 consisting of a communication interface and the like.

This printer control circuit 71 is -'/
- Based on the processing results of various manually inputted data, a drive pulse DL is output to the drive circuit 73 to drive and control the line feed motor 22 to rotate the platen 21 and feed the paper.

The printer control circuit 71 also issues a drive signal DRVC that instructs the drive of the space motor 38 and a speed of the space motor 38 based on the processing results of various data and the device signal P'C constituted by the space sensor 3S. Command speed data VDAC and space motor 38
A rotation direction signal DIRC specifying the rotation direction of is output to the space servo drive circuit 74 to rotationally drive the space motor 38 to move the carriage 31 in a predetermined direction by a required amount.

Furthermore, the printer control circuit 71 outputs a drive pulse DH to the drive circuit 75 to drive the print hammer 6.
The hammer magnet 76 of No. 5 is driven and controlled to cause the hammer 77 to strike the type on the type wheel 32.

Furthermore, the printer control circuit 71 outputs the 8-drive pulse DR to the drive circuit 78,
In FIG. 2, the ink ribbon 36 of the ribbon cassette 37 is
send.

The printer control circuit 71 also generates a drive signal DRVS that instructs the drive of the selection motor 34 and command speed data VDAS that instructs the speed of the selection motor 64 based on the device signal PS composed of the print character data and the selection sensor 35. and a rotation direction signal D'IR3 that specifies the rotation direction of the selection motor 34.
is output to the selection servo drive circuit 80,
The selection motor 34 is rotationally driven to rotate the type wheel 3.
2 is rotated by a required amount in a predetermined direction, and the desired printed characters are brought to a position where they are struck by the printing hammer 33.

Furthermore, during automatic paper feeding, the printer control circuit 71 outputs a drive pulse DP to the drive circuit 81 to drive and control the solenoid 4, thereby controlling the approach and separation of the paper pail 27 with respect to the platen 21.

Next, the operation of this embodiment configured as described above will be explained with reference to FIG. 6 and subsequent figures.

First, the text creation control operation by the main controller 61 will be explained with reference to FIG.

The main controller 61 first performs a format creation process to create a text format, and stores the created format data in the format area Ei5B of the text memory 65.

In other words, the space key 11A on keyboard 1.

The carriage 31 and platen 21 of the printer 2 are moved while the current positions of the carriage 31 and platen 21 of the printer 2 are managed according to the operation results of the backspace key 11B and return key 11C.

And left hand margin key 12A, right hand margin key 12B, margin release key 12C,
Tab set clear key 12D.

The position of the carriage 31 and the position of the platen 21 when the start row set key 12E is operated are captured and stored.

As a result, the format area 65B of the text memory 65 has a print start line position m as shown in FIG.
Data in formats such as O, left hand margin position It rn 1r right band, right margin position @m2, horizontal tab position, vertical tab position, and page end line position are stored.

Thereafter, the main controller 61 sequentially stores text data input by key operations in the text area Ei5A of the text memory 65.

In this way, the created text data is stored in the text area E) 5A of the text memory 65,
The format area E15B stores data on the format of the created text.

For formatting data, while creating text, it is determined whether or not the data manually generated by the key is data related to formatting settings, and each time data related to formatting settings is input, the data is transferred to the formatting area 65B. It can also be stored.

Next, the text output control operation executed by the main controller 61 will be explained with reference to FIG.

For example, as shown in Figure S, the format memory 66 stores initial settings and data on the format of the previous text printing, that is, a preset print start position amount n.
o y left margin position nlt right margin position n2, and print format data such as horizontal tab position, vertical tab position, and paper end line position are stored.

Under this state, the main controller 61.

It is checked whether or not the paper insert key 14B of the keyboard 1 has been pressed. When the paper insert key 14B is pressed, the data of the print start line position nQ of the preset format is read from the format memory 66 and the printer computer Infeed (line feed) to roller 71 by rlQ line digits to 1
12- Outputs data instructing.

As a result, the printer controller 71.

First, the solenoid 49 is activated to separate the paper pail 27 from the platen 21, and then the line feed motor 22 is rotated by nQ lines in the line feed direction to feed the paper to a preset printing start position. The paper pail 27 is pressed into contact with the platen 21 by stopping the operation.

After this automatic paper feeding or when the paper insertion key 14B is not pressed, it is determined whether or not text is to be recalled. If it is, text memory 6
5 and reads the print start line position mo of the print text from the format area 65B.

Then, the difference (no mo) between the preset print start line position n□ stored in the format memory 66 and the print start line position mo of the read print text is calculated, and the difference (no -mO) data instructing line feed (line feed) or back line feed (reverse line feed) to the plink controller 71.

Thereby, the printer controller 71 drives and controls the line feed motor 22 to feed the paper (no mo
) Feed the paper in the direction of the specified line feed or reverse line feed.

Therefore, the paper is correctively fed up to the print start line of the print text.

Thereafter, it is determined whether automatic paper feeding has ended or not, and if it has not ended, the process returns to the process of determining whether or not the paper insertion key 1411 has been pressed, and if it has ended, the process proceeds to the next process.

Through this processing, it is possible to position the paper at the printing start position of the print text, regardless of which of automatic paper feeding by operating the paper insertion key 14B and corrected paper feeding by calling the text is performed first.

After the paper has been fed to the print start line of the print text on the paper, the text memory 6 is stored in the format memory 66.
The format data of the print text stored in the format area 65B of No. 5 is set (replaced), and the text is printed according to the format No. 1-.

In this manner, in this electronic typewriter, paper is corrected and fed in accordance with the difference between the preset printing start line and the actual printing start line of the text.

As a result, the paper is automatically set to the print start line according to the text and printing starts, so the format of the created text and the print format are changed depending on the difference between the set print start line and the actual print start line. There is no difference, and 1w4 productivity is improved.

In addition, since formats 1 to 1 of the created text are stored in the text memory, you can set the paper at the starting line of text just by calling the text memory.For example, you can set the format memory that can store multiple formats. The operability is further improved compared to the case where the required format is read before text printing, and then the text is read.

As explained above, according to the present invention, the paper can be automatically set at the print start line position of the print text, thereby improving the operability.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view showing an example of an electronic typewriter embodying the present invention, FIG. 2 is a schematic plan view of the printing mechanism of the printer, and FIG. 3 is a schematic diagram of the printing mechanism of the printer. Partial side view, 4th
Figure 5 is a block diagram of the control section of the electronic typewriter; Figure 5 is an explanatory diagram showing the format configuration of the text memory in Figure 4; Figure 6 is text creation executed by the main controller in Figure 4. Flowchart of control operation. FIG. 7 is an explanatory diagram showing an example of data storage in text memory. FIG. 8 is a flowchart of text output control operation executed by the main controller of FIG. 4. FIG. 9 is a format FIG. 2 is an explanatory diagram showing an example of data storage in a memory. 16-1 ・Keyboard 2...Printer...LCD 12...Format setting keys group 1
3A...Layout key 31...Carriage 61...
・・Main controller 65 ・・Text memory 66 ・・Format memory

Claims (1)

[Scope of Claims] 1. In an electronic typewriter having an automatic paper feeding function that automatically feeds paper up to a preset print start line, when printing text, the print start line of the printed text and the preset print start line are An electronic typewriter characterized by comprising a paper feed correction control means for feeding the paper according to the difference between the lines. 2. The electronic typewriter according to claim 1, wherein a print start line of text is stored in a text memory, and the paper feed correction control means feeds paper when the text is recalled from the text memory.