JPS63162263A - Recorder - Google Patents

Abstract

PURPOSE:To improve erasability by changing the shift amount of tape for erasure in accordance with the kind of tape for erasure. CONSTITUTION:Before erroneously printed characters are erased by hammering each signal character with a hammer 116 three times, a tape for erasure 108 is shifted downward slightly between the first and second rounds of hammering of a total 3. In this case, the rotational amount of a cam 122 is controlled according to the kind of a tape for erasure 108 to change the shift amount. That is, for instance, if an adhesive tape for erasure is used, the cam 122 is rotated beyond a set number of rotations to permit the tape to shift securely. In addition, if a tape which shifts easily without setting the cam 122 to a large number of rotations as a cover-up tape for erasure with high erasability in a small shift amount is used, the cam 122 is controlled so that it may rotate slightly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording device, and particularly to a recording device that can erase recorded characters, etc. with an erasing tape.

[Prior Art] A conventional typewriter with an erasing function performs printing by shifting an ink ribbon to a type position and striking the type. The carriage carrying the print head, ink ribbon, etc. is moved by one character each time one character is printed.

If an incorrect character is printed during this printing operation, select the same type as the erroneously printed character and shift the erasing tape to the position of the type. Peeling off ink from incorrect printing. There are two types of erasing tape: one type that attaches ink to the adhesive part and then peels it off, and another type that erases the incorrectly printed ink by painting it white with the white ink of the erasing tape (cover-up).

During the erasing operation, it is difficult to completely match the position of the printed characters with the position of the printed characters at the time of erasing, so this positional shift may leave some unerased portions.

Therefore, in order to eliminate this unerased portion, the erase impact is performed multiple times at the erase position and at positions slightly shifted to the left and right from the erase position.

Furthermore, if the same location of the erasing tape is used during these multiple erasing impacts, in the case of adhesive tape, the ink that adhered to the adhesive tape due to the first erasing impact will be slightly transferred to the printing paper by the next erasing impact. In the case of cover-up erasing tape, complete erasing was not possible because the same location could not be used more than once. Therefore, the correction tape was shifted up and down by a small amount to avoid using the same location.

[Problems to be solved by the invention] However, when shifting the erasing tape up and down by a small amount,
Even if it is shifted by the same amount, the amount of shift of the erasing tape itself will vary depending on the adhesive strength of the erasing tape, the hardness and stiffness of the tape, the speed at which the erasing tape is peeled off from the printing paper, etc. There was a drawback.

When erasing characters with large character heights such as "1", if you shift the erasing tape up or down, the characters will protrude from the erasing tape, leaving unerased residue. On the other hand, in order to prevent this, if the amount of shift is reduced for all types of erasing tapes so that they do not protrude, there is a problem that depending on the type of erasing tape, there is almost no shift and erasing performance deteriorates.

The present invention has been made in view of the above conventional example, and an object of the present invention is to provide a recording device with improved erasability by changing the shift amount of the erasing tape in accordance with the type of erasing tape. .

[Means for Solving the Problems] In order to achieve the above object, the recording apparatus of the present invention has the following configuration. That is, a recording device capable of inputting recording information, displaying and recording on a recording medium, and erasing the displayed recording with an erasing ribbon, comprising an instruction means for instructing the type of the erasing ribbon, and an instruction means for instructing the type of the erasing ribbon; displacing means for displacing the eraser from a standby position to an erasing operation position; means for performing the erasing operation a plurality of times; and moving means for moving the erasing ribbon by a predetermined amount depending on the type of the erasing ribbon between the erasing operations. Equipped with.

[Operation] In the above configuration, when performing the erase operation multiple times,
During at least one of the plural erasing operations, the erasing ribbon is moved by a predetermined amount in accordance with the type of erasing ribbon instructed by the instruction means, and for example, in the case of adhesive tape, the shift amount is increased. It works like this.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Explanation of the structure of the C typewriter (FIGS. 1 and 2)] FIG. 1 is a block diagram showing the structure of the typewriter of this embodiment.

In the figure, 100 is a letter-filled key or each f! 1! Print data and various instruction data are input using a keyboard equipped with function keys. Reference numeral 101 denotes a control unit that controls the entire typewriter, and includes an MPU 102 such as a microprocessor, which outputs various control signals and controls the entire typewriter according to a control program stored in a ROM 103.
RAM 104 used as a work area for 102,
A timer that measures time based on instruction signals from the MPLIIO 2 and outputs time information, outputs drive signals from the MPU 102 to each motor driver, hammer driver, etc. of the print mechanism section 107, and also outputs drive signals from the MPU 102 to the print mechanism section 107.
Interface unit 1 that inputs and outputs various signals with 7.
06 etc.

Next, the configuration of the print m structure section 107 that performs the printing operation will be explained.

108 is an erasing tape for erasing printed characters, and a tape motor 109 is driven by a driver 110.
A predetermined amount is sent by. The tape sensor 111 is a sensor for detecting the type of erasing tape currently installed. For example, depending on the shape of the erasing tape cartridge, the ink of the printed character part is attached to the adhesive part and peeled off. It is determined whether the tape erases printed characters or the tape erases characters by applying, for example, white ink onto the printed characters. Note that the type of tape 108 may be specified using the keyboard 100.

A motor driver 112 drives a carriage motor 1113 that transports a carriage 114 carrying a print head, thereby transporting the carriage 114 in the longitudinal direction of the platen. When the carriage 114 reaches the printing position, the wheel motor 118 rotates the type wheel 119 to select the desired type. and hammer driver 115
The hammer 116 is driven by the hammer 116, and printing is performed on the paper via the ink ribbon by hitting the back side of the selected type. In addition, when erasing a printed character, after moving the carriage 114 to the position of the printed character, instruct the character to be erased from the keyboard 100, and when the same key (character) as the printed character is input, a hammer is inserted through the erasing tape 108. 11
6, the printed characters corresponding to the key input are selected and printed. In this way, the printed characters are peeled off or white ink is applied onto the printed characters to erase the characters. A motor driver 117 drives a wheel motor 118 to rotate a type wheel 119 to select a desired type.

122 changes the inclination of the ribbon frame that supports the ink ribbon and the erasing tape 108, and the type wheel 119
Ink ribbon or erasing tape 108 on the printed part
This cam is driven by a cam motor 121 that is driven by a motor driver 120. 12
A paper feed motor 4 rotates the platen to feed the paper, and is driven by a motor driver 123.

FIG. 2 is an external view of the typewriter of this embodiment, and parts common to those in FIG. 1 are indicated by the same symbols.

Reference numeral 20 designates a platen serving as a recording platform that winds the paper and is rotationally driven by the paper feed motor 124 to transport the paper, and also receives and stops the impact of the type from the hammer 116. Reference numeral 100 indicates a keyboard on which various input keys are arranged, and a carriage 114 includes a hammer 116 which is a recording head, and a type wheel 119 on which groups of type are arranged radially.
, a ribbon cassette containing an ink ribbon, a supply spool wound with an erasing tape 108, etc., and are transported left and right along the platen 20 almost in parallel by a carriage motor 113.

[Explanation of the shifting mechanism of the ink ribbon and erasing tape (Figs. 3 and 4)] Figs. 3 and 4 are diagrams explaining the shifting mechanism of the ink ribbon 33 and the erasing tape 108. 4 shows the non-printing state in which the ribbon is lowered, and in FIG.
Part 1 shows the lifted state. still,
In both FIGS. 3 and 4, parts common to FIGS. 1, 2, and each drawing are indicated by the same symbols.

In FIG. 3, a ribbon cassette 32 containing an ink ribbon 33 is detachably held on a ribbon frame 34. This ribbon frame 34 is pivotally supported by a support member 30 provided on the carriage 114 at @31 so as to be rotatable in the directions of arrows a and b. Reference numeral 35 indicates a bent portion (only one side is shown) formed by bending downward on both sides of the tip portion (platen 20 side) of the ribbon frame 34;
is provided with a supply spool 36 wound with an unused erasing tape 108, and a take-up spool (unused erasing tape 108) wound with a tape motor 109 is provided on the opposite bending part. ) is provided.

Guide rollers 37 for the erasing tape 108 are provided on both spool sides, and the erasing tape 108 is fed out from the supply spool 36, twisted by 90 degrees, and stretched in contact with the guide rollers 37 on both sides. . When the take-up spool is rotated by the tape motor 109 to take up the erasing tape 108, the supply spool 36 is pulled and rotates in the direction of arrow C to feed out the erasing tape 108.

The cam 122 is rotationally driven around the shaft 38 by the cam motor 121. A pin 40 protruding from the inside of the lower end of the bent portion 35 is slidably fitted into the cam groove 39 of the cam 122. Therefore, when the cam 122 is rotationally driven in the directions of arrows d and e, the distance IIx between the shaft 38 of the cam 122 and the pin 40 changes. In this way, the ribbon frame 34
1 in the directions of arrows a and b, and the ink ribbon 33 or erasing tape 108 is rotated around the type wheel 11.
9 is displaced to the position of the printed characters 41.

Figure 4 shows the distance between the shaft 38 and the pin 40 as the cam 122 rotates.
X becomes larger and the ribbon frame 34 is lifted in the direction of arrow a, and the erasing tape 108 is attached to the type 4.
It is located in front of 1. When the hammer 116 hits the back side of the type 41 in this state, the ink of the printed characters is transferred to the erasing tape 108 and peeled off, or white ink is applied on the printed characters and the characters are removed. It will be erased.

Incidentally, during normal printing, the ink ribbon 33 is positioned in front of the type 41 by changing the rotational position of the cam 122, and in this state, the hammer 116 is driven to strike the back surface of the type 41. In this way, the ink from the ink ribbon 33 is transferred onto the paper and printing is performed.

As described above, since the distance 11x gradually changes as the cam 122 rotates in accordance with the shape of the cam groove 39, the displacement of the erasing tape 108 from the state shown in FIG. 3 to the state shown in FIG. This is done gradually and continuously in response to the rotation of the cam 122. Therefore, when the cam 122 is slightly rotated near the position of the ribbon frame 34 shown in FIG.
The stretched portion is in the width direction (vertical direction) of the erasing tape 108
A small amount of water is transferred to. Therefore, by changing the rotational position of the cam 122, the erasing tape 108 can be arbitrarily positioned with respect to the printed characters 41.

For example, when erasing one misprinted character by hitting it three times with the hammer 116, the erasing tape 108 is shifted downward by a small amount between the first and second of the three hits. In this case, the amount of rotation of the cam 122 is controlled depending on the type of erasing tape 108 to change the amount of shift. That is, for example, it is sticky and difficult to peel off from the printing paper,
In the case of adhesive erasing tape that is difficult to shift, the cam 122 is rotated a little more to ensure that the tape shifts. In addition, for cover-up erasing tapes that are easy to shift without increasing the amount of rotation of the cam 122 and have good erasability even with a small amount of shift, it is recommended to rotate the cam 122 only a little. to control.

[Description of character erasing operation (Fig. 5)] Fig. 5 is a flowchart of the character erasing processing program stored in the ROM 103 of the control unit 101.
4 to the position of the character to be erased, and the same character as the character to be erased is input from the keyboard 100.

First, in step S1, the cam 122 is rotated to lift the erasing tape 108 to the position of the printed characters 41 as shown in FIG. In step S2, it is determined whether or not this shift-up operation has been completed by timing with the timer 105. When the shift-up operation is completed, the process proceeds to step S3, and the hammer driver 115 drives the hammer 116 to perform an erasing operation in which the back surface of the type 41 is stamped. I do. This erasing tape 108
The printed characters are erased by the impact of the printed characters on the printed surface through the ink, causing the ink on the paper to adhere to the adhesive portion of the erasing tape 108, or by covering the printed characters with white.

However, in this case, since only one impact leaves some unerased areas, the erasing tape 108 is moved a small amount in the vertical direction to perform subsequent impacts.

After driving the hammer in step S3, the controller waits for the erasing tape 108 to be peeled off based on the timing of the timer 105, and then checks the type of erasing tape 108 in step S4. This may be determined by the tape sensor 111 based on the shape of the cartridge or supply spool of the erasing tape 1'08. For example, a code indicating the type of tape may be entered in advance using the keyboard 100 or the like and stored in the RAM 104. You can leave it there.

Now erase the characters by using adhesive tape 108 and painting the printed characters white (cover up) 2
Considering the type of tape, in the case of a tape whose characters are peeled off and erased due to its adhesiveness, the process proceeds to step S5, and the tape shift amount (rotation amount of the cam 122) is set to a large value. On the other hand, if it is determined in step S4 that the cover is up, the process proceeds to step S6, and the tape shift amount is set to a small value.

In step S7, the cam 122 is rotated by the amount set in step s5 or step S6 to erase the erasing tape 1.
08 in the vertical direction by a minute amount. In step S8, it is determined whether the shift has ended by measuring the time of the timer 105, and when the shift has ended, the process advances to step S9, where the hammer 11
6 to perform the second printing of the type. Step S
In IO, the erasing tape 108 is peeled off from the printed surface in step S9, and the third impact is performed again.

Furthermore, even better erasing performance can be obtained by moving the carriage 114 slightly to the left and right between the first and second impacts and between the second and third impacts. Further, as in the case between the first and second impacts, the erasing tape 108 is moved a small amount in the vertical direction between the second and third impacts, for example, first upward in step S7. Of course, it is also possible to move the time downward.

Waiting for the peeling time of the tape 108 in step 510, rotating the cam 122 in step Sit to lower the erasing tape 108 as shown in FIG. 3, and driving the tape motor 109 via the driver 110 in step S12, The erasing tape 108 is wound up by a predetermined amount and the process is completed.

Note that the peeling wait time (time wait) of the erasing tape 108 described above can be made variable depending on the type of erasing tape, etc. For example, when a cover-up erasing tape is used, the erasing time is The time required for impact can be shortened.

Further, although this embodiment describes the case of a typewriter, it is not limited to this, and it is of course applicable to other recording devices such as a thermal transfer printer that performs thermal recording using a thermal transfer ink ribbon. It is.

As described above, according to this embodiment, erasing performance can be improved by changing the shift amount of the erasing tape between erasing impacts depending on the type (characteristics) of the erasing tape. Also, since the type does not protrude from the erasing tape,
Problems such as variations in erasing properties and poor erasing depending on the type of erasing tape can be solved.

Furthermore, since the unused portion of the erasing tape is effectively used, the tape can be used efficiently without any waste, resulting in excellent economic efficiency.

[Effects of the Invention] As described above, according to the present invention, printed characters can be reliably erased using erasing tape.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the configuration of the typewriter of this embodiment, Fig. 2 is an external view of the typewriter of this embodiment, and Figs. 3 and 4 explain the shift mechanism of the ink ribbon and erasing tape. FIG. 5 is a flowchart of character erasing processing in this embodiment. In the figure, 20... platen, 32... ink cartridge, 33... ink ribbon, 34... ribbon frame, 35... bending part, 36... supply spool, 3
9...Cam groove, 40...Pin, 41...Print, 1
00...Keyboard, 101...Control unit, 102.
・-MPU, 103...ROM, 104...-RAM
, 105...Timer, 106...Interface unit, 107...Print mechanism unit, tOa...Erasing tape, 109...Tape motor, 111...Tape sensor, 114...Carriage , 116...Hammer, 118...Wheel motor, 119...Type wheel, 121...Cam motor, 122...Cam, 124...Paper feed motor.

Claims (2)

[Claims] (1) A recording device capable of inputting recorded information and displaying and recording on a recording medium, and erasing the displayed record with an erasing ribbon, comprising an instruction means for instructing the type of the erasing ribbon, and an instruction means for instructing the type of the erasing ribbon; Displacing means for displacing the ribbon from a standby position to an erasing operation position, means for performing an erasing operation a plurality of times, and movement for moving the erasing ribbon by a predetermined amount depending on the type of the erasing ribbon between the erasing operations. A recording device comprising: means. (2) The recording device according to claim 1, wherein the moving means is configured to move a larger amount when the erasing ribbon is a ribbon with high adhesiveness than when a ribbon with low adhesiveness is used. .