JPS63144066A - Printer - Google Patents

Abstract

PURPOSE:To enable character correction to be performed in a vertical direction, by providing a means for moving a printing head and a correcting means in a column direction relative to a paper, and simply designating the character correction in the column direction to thereby cause the correcting means to be moved in the column direction together with the printing head while performing the character correction. CONSTITUTION:An electronic controller 110 comprises a printing-controlling circuit 230, a printing position controlling circuit 240, a correction-controlling circuit 245 connected to a character-correcting part 75 and functioning to interchange a correction tape and a printing ribbon 50 with each other, a keyboard I/O circuit 250 and a bus 260. A carriage 65 is adjusted to the position of a vertical line which has become useless, and a vertical correction key 130 and a '¦' key are depressed, whereby a character '¦' is corrected, and the carriage 65 is moved to the position of the character '¦' in the preceding line. Further, a repeat key 140 is depressed, whereby a vertical correction operation is performed. Thus, the unnecessary vertical line can be completedly corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printing device capable of erasing characters in the vertical direction (hereinafter referred to as vertical correction).

[Prior Art] Some conventional printing devices such as typewriters have a function (hereinafter referred to as collection) of erasing characters printed on paper using adhesive tape or the like. This collection is performed by aligning the print head with the characters to be erased and pressing adhesive tape or the like with the same type of characters as the characters to be erased to remove the ink on the paper.

[Problems to be solved by the invention] However, the collection function only works in the horizontal direction of the paper (in the horizontal direction)
To 3! %Can be done consecutively, but vertically (column direction)
cannot be performed consecutively.

Therefore, in order to erase vertically continuous printing such as the knitting lines of a table, it is necessary to collect one character and repeat the operation IS-, which moves the paper one line using the subscript key or superscript key. , which required complicated operations.

[Means for solving the problems] The gist of the present invention is as illustrated in FIG.
It is a printing device having a function of printing in the row direction on the paper M2 on the platen gap 1, and includes an instruction means M3 for instructing erasing of characters in the column direction, and an erasing means M5 for erasing characters corresponding to the position of the print head M4. , print head M4 and erasing means M5
, or a moving means M6 for relatively moving the paper M2 in the column direction of the paper M2, and when the instruction means M3 instructs to erase characters in the column direction, the erasing means M5 erases the characters corresponding to the position of the print head M4. The printing apparatus is characterized in that the printing head M4 is moved by a moving means M6 so that a character position in an adjacent row and in the same column as the erased character faces the print head M4.

In FIG. 1, the sheet M2 is shown to be moved by a platen to facilitate understanding, but it may be moved by other means.

[Operation] The paper M supported by the platen Ml is controlled by the indicating means M3.
When instructed to erase the characters on the column in the column direction, first, the erasing means M5 erases the characters corresponding to the print head M4 position.Next, the moving means M6 erases the characters corresponding to the print head M4 position.
is moved to the position opposite to the character position on the adjacent line and in the same column as the erased character. Therefore, in the present invention, by simply instructing the erasing of characters in the column direction by the instruction means M3, the erasing means M5 moves in the column direction together with the rad M4 toward printing while erasing characters.

[Example] Six embodiments of the present invention will be described with reference to the drawings.The present invention is not limited thereto, and includes various embodiments without departing from the gist thereof.

This embodiment operates to erase characters in the vertical direction by pressing a vertical correction key provided on the keyboard.

FIG. 2 is a diagram showing the configuration of an electronic typewriter 10 to which the present invention is applied. The electronic typewriter 10 uses a print head composed of a daisy wheel 20 and a print hammer 25 to print on paper 40 set on a platen 30. The printing driver is attached to a carriage 65 that is slidably attached to a guide shaft 60 together with the printing ribbon 50 and a ribbon winding stepping motor 55, and the daisy wheel 20 is moved by a daisy wheel stepping motor 70. Character selection is made.

The carriage 65 also includes a well-known ribbon lift mechanism for placing a collection tape at a printing position in place of the printing ribbon 50 during collection together with the print head, and a mechanism for winding the collection tape into a predetermined length in connection with the ribbon lift operation. A character erasing section 75 equipped with a chip winding mechanism (both not shown) is attached. The carriage 65 is connected to a carriage stepping motor 9 via a belt 80.
0 to move the print head into position. Further, the platen 30 is driven by a line feed stepping motor 100 connected through gears, and moves the paper 40 to a predetermined position.

Stepping motor 55.70.90.100 mentioned above,
The operations of the printing hammer 20, character erasing section 75, etc. are controlled by an electronic control device 110.

In addition, instructions for these operations and input of documents are conducted electronically (
This is done by a keyboard 120 connected to the ear device 110. This keyboard 120 includes a large number of character keys 1
25, vertical correction key 130, repeat key 140
etc. are provided.

The electronic control unit mentioned above! 110 is a well-known CPU 200;
In addition to the ROM 210 and the RAM 220, there is also a print control circuit 230 that is connected to the print hammer 25 and the daisy wheel stepping motor 70 that form the print head and controls printing, and a print control circuit 230 that is connected to the stepping motors 90 and 100 that controls the print head for the paper 40. 20; an erasing control circuit 245 connected to the character erasing section 75 and exchanging the collection tape and printing ribbon 50; a keyboard input/output circuit 250 connected to the keyboard 120; and a bus 260. .

In addition, the RAM 220 includes a collection memory VM, which will be described later.
, a correction memory flag MF, and a vertical correction flag VF.

In this embodiment, vertical correction is performed as described above. For example, "-" and "
1", but if the vertical line at the arrow position is no longer needed, first move the carriage 65 as shown in Figure 2.
0 to the unnecessary vertical line position.Next, do not press the vertical correction key 130, and then press the "1" key.This operation deletes one character "1" and moves the carriage 6
5 moves up one line to the "1" position. Furthermore, by pressing the repeat key 140, the vertical correction operation described above can be performed continuously to erase all the vertical lines at the arrow positions.

The key manual processing of this embodiment for executing such vertical correction will be explained using the flowchart of FIG.

When the process starts, if it is determined in step 5300 (hereinafter simply referred to as 5300, and the same applies to the pond step) that some key is pressed, the process continues to <531.
0, the type of the key is determined, and processing according to the key is performed. That is, the key is the vertical correction key 130
If so, the vertical correction flag VF indicating that the vertical correction mode is set is set in 5400, and the vertical correction flag VF is set in 5300.
Return to 5500~, which will be described later as the character key 125.
Determining whether or not the vertical correction mode is in step 570;
Performs processing such as canceling execution of vertical correction.

Furthermore, if it is a repeat 'tr-140, it is 560 which will be described later.
0 to 630 performs processing such as continuous vertical correction, and if a key other than the above, such as the backspace key 145, is used, the correction memory flag MP and vertical correction flag VF used in the vertical correction processing are set at 5700.
5300, and performs the process corresponding to that key.
Return to

Next, the processing for each key will be explained in more detail.

If the key is the character key 125, first, 550
Check whether the correction memory flag MF is set at 5510 and reset the two flags MF and VF at 5510 to cancel the vertical correction mode. On the other hand, if the correction memory flag MP is not set, it is checked in <:5520 whether the vertical correction flag VF is set, and if it is not set, the process moves to 5560, which will be described later.On the other hand, When the vertical correction flag VF is set, it is in the vertical correction mode, so in 5530 the character input to the collection memory VM is set as the character to be vertically corrected, and in 8535 the character is stored in the correction memory VM. A correction memory flag MP indicating that is set is set, one character is collected using the character at 5540, the platen 30 is driven by one line at 5550, and the process returns to 5300. The correction operation is performed by the correction memory VM by the stepping motor 70 for the daisy wheel.
Dizzy wheel 20 corresponding to the character set to
By selecting the printed characters, placing the collection tape at the printing position by the erasing section 75, and driving the printing hammer 25 to peel off the ink adhering to the printing position of the paper 40 by making the collection tape 1 inch. It will be done.

When moving from the above 5520 or 5510 to 5560,
Assuming that it is the normal printing mode, one character is printed by the print head via the printing ribbon 50 at 8560, and the carriage 65 is moved to the right by one character at 5570, and the process returns to 5300.

If the key is the repeat key 140, first, at 5600, it is determined whether two flags MF and VF are both set. If both are set, 56 is assumed to indicate continuous vertical correction.
At 10.5620, one character collection is performed in the same way as at 5540.5550 described above, and the paper is moved by one line. On the other hand, if the two flags MP and VF are not set at the same time, the operation immediately before the repeat key 140 is pressed at 8630 is repeated until the repeat key 140 is released. In other words, the same process as when the previously operated key is repeatedly operated is performed.

Therefore, in this embodiment, since the configuration is as shown in "-", vertical correction can be performed by simply operating the vertical correction key 130, the character key 125 of the character to be erased, and in some cases, the repeat key 140. It can be performed.

Note that if the RAM 220 is configured to store the characters that make up the document and their positions, the vertical correction key 130
Vertical correction is possible without pressing the key for the character you want to erase after pressing .

[Effects of the Invention] Since the present invention employs the configuration as described above, character deletion in the column direction can be performed by a very simple operation of instructing collection in the column direction using the instruction means. Therefore, it becomes very easy to modify tables, etc.

[Brief explanation of the drawing]

FIG. 1 is a block diagram illustrating the present invention, FIG. 2 is a block diagram of an embodiment of the present invention, and FIG. 3 is a flowchart explaining the operation of this embodiment.

Claims (1)

[Scope of Claims] A printing device having a function of printing in the row direction on paper on a platen, comprising an instruction means for instructing erasing of characters in the column direction, and an erasing means for erasing characters corresponding to the print head position. and a moving means for relatively moving the print head and the erasing means or the paper in the column direction of the paper, and when the instruction means instructs to erase characters in the column direction, the erasing means moves the print head. A printing device characterized in that a character corresponding to a position is erased, and then the moving means causes the print head to face a character position in an adjacent row and in the same column as the erased character.