JPH04105975A - recording device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a recording device, and more particularly to a recording device, such as an electronic typewriter, which has an erasing function that can erase recorded characters.

[Conventional technology]

Conventional recording devices such as electronic typewriters are equipped with an erase function (collection function) that allows characters recorded on recording paper or the like to be erased one by one or each word using an erase key. For example, on a typewriter equipped with a display capable of displaying at least one line of recorded data, move the cursor to the character or word you want to erase in the currently displayed recorded line and press the character erase key or By pressing the word erase key, the recorded characters or words can be erased and also erased from the display.

[Problem to be solved by the invention]

However, in the above conventional example, if you accidentally input the character erase key or word erase key, you may end up erasing parts of the already recorded character string other than the part you want to erase, or you may end up erasing only one character you intended to erase. By mistake, word by word (
(ranges delimited by spaces) may be deleted. In such a case, there is a problem that it is difficult to know what the erased character is, or the character that has been erased by mistake has to be input again. The object of the present invention is to provide a recording device that allows characters or words erased by an erase key to be easily restored.

[Means for Solving the Problems] In order to achieve the above object, the recording device of the present invention has the following configuration. That is, an erasing means for erasing recorded information recorded on a recording medium;
storage means for storing the recorded information erased by the erasing means; a restoring means for restoring the recorded information stored in the storage means; and a restoring means for restoring the recorded information stored in the storing means; and recording means for recording again at the same position on the recording medium. [Operation] In the above configuration, the recorded information erased by the erasing means for erasing the recorded information recorded on the recording medium is stored, and the recorded information is restored and erased by the erasing means. It operates so that recording can be performed again at the same position on the recording medium. Embodiments Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Description of Typewriter (Fig. 1)> Fig. 1 is a block diagram showing a schematic configuration of a typewriter according to an embodiment of the present invention. In Fig. 1, 1 is a keyboard, which is equipped with character input keys and symbol input keys such as alphabet keys, hiragana keys, and katakana keys for inputting document information, and function keys for inputting various functional information. There is. Reference numeral 1a denotes a character erase key on the keyboard 1. By pressing this key 1a, one character that has already been recorded or displayed on the display section 8 is erased. 1b is a word deletion key, and by pressing this key 1b, one word already recorded and displayed on the display section 8 is deleted. Note that the characters or words to be erased using these erase keys are designated by moving the cursor displayed on the display unit 8 using a cursor movement key or the like (not shown). Reference numeral 1c is a return key, which can restore characters or words erased by the above-mentioned erase key. A memory 3 stores characters, symbols, etc. input from the keyboard 1. The memo 3 includes an erase character memory 3a that temporarily stores characters or words erased by the character erase key 1a or word erase key 1b, and a line memory that stores one line of manually entered document information. 3b etc. 4 is a CPU (central processing unit), which controls the entire apparatus. 4a is a ROM (read only memory) provided in the CPL14,
A control program according to a flowchart shown in FIG. 2 or FIG. 4, which will be described later, is stored. 4b is a RAM used as a work area for the CPU 4. Reference numeral 5 denotes a printer controller 1 to roll circuit, which controls the printer unit 6 according to instructions from the CPU 4. Under the control of the printer control circuit 5, the printer unit 6 records characters, symbols, etc. stored in the memory 3 on recording paper, which is a recording medium, or records characters and words already recorded on the recording paper, etc. can be erased. Reference numeral 8 denotes a display section, which can display a small amount (one line worth of document information input from the keyboard 1) together with a cursor that indicates the character position. 7 indicates the content displayed on the display section 8, as image data. This is the display memory that stores information in the display memory.The operation of the typewriter with the above configuration is as follows.
C indicates that the character erase key 1a on the keyboard 1 has been pressed.
When detected by the CPU 4, the CPU 4 detects the instructed character or symbol to be erased, and controls the printer unit 6 by the printer control circuit 5 to erase the character. At the same time, the corresponding characters displayed on the display section 8 are also erased. Then, when the return key 1c is pressed, the CPU 4 reads out the erased characters or symbols from the erased character memory 3a. Then, the printer control circuit 5 controls the printer unit 6 to perform a return operation to record the erased characters again at the corresponding location. At the same time,
The erased characters are also displayed on the display section 8 and the display returns to normal. These operations are performed similarly when the word erase key 1b is pressed to erase a word, and the erased word is recorded and displayed again by pressing the return key 1c. <Description of Typewriter (Fig. 5)> Fig. 5 is an external perspective view of a typewriter T to which an embodiment of the present invention is applied. Parts common to Fig. 1 are designated by the same numbers, and their explanations are given below. Omitted. In the figure, 10 is a platen, 12 is a recording paper, 13 is an exterior, 14 is a power switch for controlling power on/off, and 1 is a keyboard. 16 is a foot switch that is turned on and off by opening and closing the hood 13a;
When the hood 13a is opened by sensing the opening/closing of the hood 13a, a signal to shift the ink ribbon to a predetermined position, which will be described later, is generated, and the keyboard 1 is also locked by the same signal. MOKY is a mode key, which is used to set various modes such as Ribon mode setting, which will be described later. Further, PRKY is a print command key. Further, this Type-Like T includes the aforementioned printing section 6, input section, display section 8, control section 4, external input/output interface section, etc. FIG. 2 is a flowchart showing a processing procedure in a typewriter according to an embodiment of the present invention, and a control program for executing this processing is stored in the ROM 4a. This process is started when a character key or various function keys on the keyboard 1 is pressed, and first, in step S1, it is checked whether a character key has been input. When a character key is input, the process proceeds to step S2, where the character corresponding to the input character code is displayed on the display section 8, and the printer control circuit 5 records the character in the printer unit 6. Next, the process proceeds to step S3, where the contents of the erased character memory 3a are cleared. Furthermore, at this time,
The input characters are stored in the line memory 3b. If no character key has been input, the process advances to step S4 to check whether the character erase key 1a has been input. Character erase key 1a
When is pressed, the process advances to step S5, where, for example, the character specified by the cursor on the display section 8 is erased, and
The printer unit 6 is driven to erase the recorded characters. Then, the process proceeds to step S6, and the erased characters are stored in the erase memory 3a. Furthermore, at this time,
The corresponding character in the line memory 3b is also erased. If the character erase key 1a is not input, the process advances to step S7, and it is checked whether the word erase key 1b is input. When the word deletion key 1b is pressed, the process advances to step S8;
The designated word is erased from the display section 8, and the printer unit 6 is driven to erase the recorded word. Then, the process proceeds to step S6, and the erased word is stored in the erase memory 3a. At this time as well, the corresponding word in the line memory 3b is erased, similar to the character erasure described above. If none of the above-mentioned key personnel are available, proceed to step S9.
, and check whether the return key 1c has been pressed. If the return key 1c is not input, the process advances to step S10 and the process corresponding to the input key is performed. When the return key 1c is input, the process advances to step S11, and it is checked whether the key pressed immediately before is the character erase key la. If so, the process advances to step S12 to read out the characters stored in the erased character memory 3a, and in step S16 the characters are recorded again at the same position by the printer unit 6 and displayed on the display section 8. At this time, the characters in the erase memory 3a are stored in the original position in the line memory 3b. If the key immediately before the return key 1c is the word erase key 1b in step 313, the process advances to step S15, the erased word is read from the erase character memory 3a, and step S
At step 16, the word is recorded again at the same position and displayed at the corresponding location on the display section 8. And line memory 3
The word is stored again in b. If the previous key is not an erase key in step 813, an error occurs and step S
Proceed to step 14 to execute error handling. As described above, according to this embodiment, erased characters and words can be recorded and displayed with a single touch. <Other Embodiments (FIGS. 3 and 4)> FIG. 3 is a diagram for explaining another embodiment of the present invention. FIG. 3(A) is a diagram showing the recording state of one line currently being recorded.
This shows the portion that has been erased due to a). Here, it is assumed that the erase key is configured to be able to specify and erase a range of characters, for example. FIG. 3(B) is a diagram showing the key force required to restore the erased portion 32 and record it again. Here, a number (here, 'i') indicating how many characters are to be restored from the erased character string is input before the restoration key 1c. 34 indicates the key strength of the restoration key 1c. FIG. 3, (C) shows the result of restoration using the restoration key 1c, in which only the first character (e) 35 of the erased character string is restored. Other implementations of FIG. This is a flowchart showing an example, and is shown in a form incorporated in the flowchart of FIG. 2. In step S9 of FIG. 4 (same as FIG. 2), the return key 1c
When inputted manually, the process advances to step S21, and before pressing the return key 1c, the limited information (in the example of FIG. 3, the numerical value °"1") is displayed.
Check to see if it is done manually. If the limited information has not been input, proceed to step Sl in Figure 2.
In step S21, the erased character string stored in the erase memory 33a is read out and recorded again.
If the limited information has been input in step S22, the process advances to step S22. In step S22, a designated number of characters are read from the beginning of the character string stored in the erase memory 3a, and then the process proceeds to step 816 (FIG. 2), where the printer unit 6 records the characters (string). At the same time, it is displayed on the display unit 8. At this time, the restored character code is stored again at the corresponding position in the line memory 3b. This allows you to specify the character (string) you want to restore from among the erased character strings and restore it to memory again.
It can be recorded and displayed at the same location again. Thereby, characters etc. that have been erased by mistake can be easily restored and recorded at the same position again. Although the present embodiment has been explained in the case of an electronic typewriter, the present invention is not limited thereto, and can of course be applied to a printer or the like having a function of erasing recorded characters. Furthermore, in this embodiment, instructions for specifying erased characters and restoring erased characters are given from the keyboard, but instructions may also be given by commands from a host computer, etc. that outputs print information to a printer, etc. . As explained above, according to this embodiment, characters etc. that have been erased by mistake can be easily restored, and all (the same characters) as before erasure can be accurately recorded. [Effects of the Invention] As described above, according to the present invention, characters, words, etc. erased by the erase key can be easily restored and recorded again.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a typewriter according to an embodiment of the invention, FIG. 2 is a flowchart showing key manual processing in a typewriter according to an embodiment of the invention, and FIG. 3 is another embodiment of the invention. FIG. 4 is a flowchart showing another embodiment of the present invention, and FIG. 5 is a perspective view of a type-like structure according to an embodiment of the present invention. In the figure, 1...Keyboard, 1a...Character deletion key 1
b...Word erase key, 1c...Return key, 3...
Memory, 3a... Erase character memory, 3b... Line memory, 4-CPU, 4a-ROM, 4b-RAM, 5
...Printer control circuit, 6...Printer unit, 7...Display memory, 8...Display section, 32
. . . Erase character string, 35 . . . Return character.

Claims (2)

[Claims] (1) Erasing means for erasing recorded information recorded on a recording medium; storage means for storing recorded information erased by the erasing means; and restoring means for restoring recorded information stored in the storage means; A recording device comprising: recording means for rerecording the recorded information restored by the restoring means at the same position on the recording medium where it was erased by the erasing means. (2) The recording apparatus according to claim 1, wherein the restoring means further comprises a designation means for designating how much of the recorded information stored in the storage means is to be restored.