JPH0457200B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic typewriter, and more particularly to carrier return within a hot zone when the electronic typewriter is in auto mode.

[Conventional technology]

As shown in FIG. 4, the printing range of a typewriter is divided into a left final, a left margin, a right margin, and a right final from the left. Further, the area corresponding to a number to the left of the light margin is called a hot zone.

Normally, printing is possible between the left margin and the right margin, but if it is desired to print beyond the left and right margins, margin release is performed.

By the way, in conventional electronic typewriters, when a space key is input in the hot zone during auto mode, the typewriter automatically carries back.

[Problem that the invention seeks to solve]

Therefore, in the conventional electronic typewriter, there is a problem that the right line edge varies within the hot zone when in the auto mode, making the printed surface difficult to see.

SUMMARY OF THE INVENTION In view of the above-mentioned points, an object of the present invention is to provide an electronic typewriter that suppresses variations in the right-hand edge within the hot zone and provides a beautiful printing surface during auto mode.

[Means for solving problems]

The electronic typewriter of the present invention includes a hot zone position detecting means for determining whether a key-input character is located within the hot zone during auto mode, and a position detecting means for determining whether the character is located within the hot zone by the hot zone position detecting means. character determining means for determining whether or not the character is a character when the character is determined; and character storage means for storing the character in a word buffer when the character determining means determines that the character is a character. , a printability determining means for determining whether the characters in the word buffer can be printed in the hot zone; a carrier return means for carrying back the characters when the printability determining means determines that the characters cannot be printed; and the carrier return means. a first printing means for printing the characters stored in the word buffer after being carried back by the character; and a character stored in the word buffer when the character is determined to be other than a character by the character determining means. and a space execution means for executing a space after the characters stored in the word buffer are printed by the second printing means.

[Effect]

In the electronic typewriter of the present invention, when in the auto mode, a key input of a space within a hot zone does not automatically carry back, but the key input after a space is judged and a word that is a continuous string of characters without spaces is generated. If it enters the hot zone, it prints this in the hot zone and then carries it back.

〔Example〕

FIG. 2 is a partially exploded plan view showing the appearance of an electronic typewriter according to an embodiment of the present invention. This electronic typewriter 1 includes a keyboard 3, a horizontally long display device (for example, a liquid crystal display device) 4 for displaying characters, and a carrier equipped with an automatic ink ribbon transport mechanism, an automatic collection ribbon transport mechanism, and an automatic printing mechanism. 5, a spacing motor 6 that automatically moves this carrier 5 to the left or right, a platen 7, and this platen 7.
The paper feed motor 8 automatically rotates the paper in the forward or reverse direction.

The keyboard 3 includes the required number of character keys 9 for printing characters, and a carrier 5.
A space bar 10 for performing a space operation (right feed), a carrier return key 11 for returning the carrier 5, and a carrier return key 11 for moving the display on the display device 4 forward from right to left (forward scroll). A forward key 12, a back key 13 for backspace operation of the carrier 5 and backward scrolling of the display on the display device 4, and a collect/delete key 14 for correcting or deleting. , a text key 15 for starting input of a text name, a text top search key 16 for searching for the top (first part) of the text (performed by the display on the display device 4), and a text key 16 for searching for the top (first part) of the text. (last part) text end search key 17 and word search key 18 to execute word search in word search mode.
and a line/paragraph search key 19 for line and paragraph searches.
and an entry key 20 for performing entry operations.
and a code key 21 that is operated in conjunction with other keys to perform an operation different from the operation caused by the single operation of that key (so-called dual function);
A left margin key 22 for setting a left margin, a right margin key 23 for setting a right margin, a release key 24 for releasing a margin, and other necessary function keys are provided.

Furthermore, the keyboard includes an operation mode selector 25, a space selector 26 for adjusting the space amount of one pitch of the carrier 5 (standard space amount), and the feed amount of one pitch of paper feed (standard line space amount). A line space selector 27 for adjusting the line and space selectors and other necessary selectors are provided.

FIG. 3 is a block diagram showing the hardware configuration of the electronic typewriter shown in FIG. 2. This electronic typewriter has 3 central processing units (CPUs)
1, a keyboard 32, a printer 33, a read-only memory (ROM) 34, a random access memory (RAM) 35, and a word buffer 36 and a space flag 37 provided within the RAM 35.

The word buffer 36 is a memory that temporarily stores the data of characters input by key after a space on the right side of the hot zone, and the space flag 37 is set when a space is input by key on the right side of the hot zone, and the data of the following characters This flag is checked when a key is input, and is set by a carrier return.

Referring to FIG. 1, the character subroutine in the electronic typewriter of this embodiment includes an auto mode determination step 101, a carrier position detection step 102, a hot zone detection step 103, a character determination step 104, and a space flag determination step. Step 105, character storage step 106, printability determination step 107, carrier return step 108, word buffer empty determination step 109, word buffer print step 110, space flag reset step 111, and write margin determination step 112
and a light margin exceeding determination step 113.
Right file determination step 114, margin release determination step 115, space determination step 116, and space flag detection step 117
, word buffer empty determination step 118 , word buffer printing step 119 , space flag setting step 120 , space step 121 , carrier position detection step 122 ,
It consists of a printability determination step 123, a character determination step 124, a print step 125, and a space step 126.

Next, the operation of the electronic typewriter of this embodiment configured as described above will be explained.

When the character subroutine is called from the main program based on a key input, first, in step 101, it is determined whether or not the mode is auto mode. If in auto mode, step 10
2, the carrier position is detected, and step 10
3, it is determined whether the carrier position is within the hot zone.

If it is within the hot zone, it is determined in step 104 whether the key input is a character, and if it is a character, it is determined in step 105 whether the space flag is set.

If the space flag is set, it means that a space has already been typed to the right of the hot zone, so in step 106 the character is stored in the word buffer and in step 10
In step 7, it is determined whether printing is possible based on the carrier position + the number of characters stored in the word buffer. In addition,
This determination not only determines whether the word can be printed within the hot zone, but also determines whether the word can be printed, including the condition that it can be printed beyond the light margin when the margin is released.

If printing is possible, the process returns to the main routine; if printing is not possible, a carrier return is made in step 108, and it is determined in step 109 whether the word buffer is empty. If the word buffer is empty, the process jumps to step 111; if it is not empty, the characters in the word buffer are printed in step 110, and the process goes to step 111. In step 111, since the space keyed on the right side of the hot zone in the previous line has already been processed, the space flag is reset, and then the process returns to the main routine.

If it is not a character in step 104, that is, if it is a space, it is determined in step 118 whether the word buffer is empty, and if it is empty, the process jumps to step 120;
Print the characters in the word buffer with and step 1
Enter 20. In step 120, since a space has been keyed in on the right side of the hot zone, a space flag is set, a space is executed in step 121, and the process returns to the main routine.

If the carrier position is not within the hot zone in step 103, it is determined in step 112 whether or not it is in the right margin position, and if it is in the right margin position, it is determined in step 115 whether or not it is a margin release. If it is a margin release, step 104 is entered and the following steps are executed.
If it is not a margin release, it is determined in step 116 whether the key input is a space, and if it is a space, the process moves to step 108 and the following steps are executed. If there is no space, step 11
At step 7, it is determined whether or not the space flag is set. If it is set, the process moves to step 106 and the following steps are executed. If it is not set, it means that a word that spans the hot zone has been input, and the process moves to the error subroutine. This error subroutine ignores the key input and performs processing to warn the user by, for example, sounding a buzzer.

If it is not the right margin in step 112,
In step 113, it is determined whether or not it is on the right side of the write margin, and if it is not on the right side, the process moves to step 124 via -, and the following steps are executed. If it is the right side, it is determined in step 114 whether it is the right final, and if it is the right final, the process goes to step 116 and the following steps are executed.
Also, if it is not the right final, step 115
and perform the following steps.

If it is not the auto mode in step 101, the carrier position is detected in step 122, and it is determined in step 123 whether printing is possible, and if printing is not possible, the process returns to the main routine. If it can be printed, it is determined in step 124 whether it is a character or not, and if it is a character, it is printed in step 125 and then the process returns to the main routine. If it is not a character, step 126
After executing the space, return to the main routine.

In the above embodiment, an electronic typewriter equipped with a display device was shown, but it goes without saying that the present invention can also be applied to an electronic typewriter without a display device.

〔Effect of the invention〕

As described above, according to the present invention, when a space key is input within the hot zone in auto mode, the key input after the space is not automatically carried back, but the key input after the space is determined and if the word falls within the hot zone, the word is printed. Since the print is then carried back, there is less variation at the right edge than in the past, resulting in an electronic typewriter that can print with beautiful appearance.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing processing in a character subroutine in an electronic typewriter according to an embodiment of the present invention, and FIG. 2 is a partially fractured plane showing the external appearance of an electronic typewriter according to an embodiment of the present invention. FIG. 3 is a block diagram showing the hardware configuration of an electronic typewriter according to an embodiment of the present invention, and FIG.
The figure is a diagram for explaining the printing range of a general typewriter. In the figure, 1... electronic typewriter, 3...
Keyboard, 5...Carrier, 22...Left margin key, 23...Right margin key, 24
... Release key, 31 ... Central processing unit (CPU), 32 ... Keyboard, 33 ... Printer, 34 ... Read only memory (ROM), 3
5...Random access memory (RAM), 36
...word battle, 37...space flag,
103...Hot zone detection step, 104
...Character determination step, 106...Character storage step, 107...Printability determination step, 108
. . . carrier return step, 110 . . . word buffer printing step, 119 . . . word buffer printing step, 121 . . . space step.

Claims (1)

[Scope of Claims] 1. Hot zone position detection means for determining whether or not a key-input character is located within the hot zone during auto mode; and determining that the character is located within the hot zone by the hot zone position detection means. character determining means for determining whether the character is a character when the character is a character; character storage means for storing the character in a word buffer when the character determining means determines that the character is a character; Printability determining means for determining whether the characters in the word buffer can be printed within the hot zone; Carrier return means for carrying back the characters when the printability determining means determines that the characters cannot be printed; a first printing means for printing the characters stored in the word buffer after being carried back; and a first printing means for printing the characters stored in the word buffer when the character is determined to be other than a character by the character determination means. An electronic typewriter comprising: a second printing means for printing; and a space execution means for executing a space after characters stored in the word buffer are printed by the second printing means.