JPS6378780A - Recording apparatus - Google Patents

Abstract

PURPOSE:To certainly perform the erasure operation of a recorded character, by providing an erasure means for erasing the information recorded on a material to be recorded on the material to be recorded using an erasing sheet and a control means for controlling the erasure means on the basis of an erasure condition to be determined. CONSTITUTION:An erasing ribbon 16 is supplied by the second member 30 to be heated by the heat generator 207 of a thermal head and can peel off an image 206 to be erased from printing paper 1-2 after l is elapsed. Therefore, when a time 204 when the bonding strength of the erasing ribbon 16 and the image 206 to be erased becomes max. after heating is elapsed before peeling-off, a carriage does not reach a speed Vnu and peeling-off can be performed in an extremely simple manner and good erasure grade is obtained. It is especially unnecessary to set the time before peeling-off to the time 204 or more and said time may be shorter than the time 204 of course when the bonding force at the point of time of peeling-off exceeds that of the image 206 to be erased and the printing paper 102. Further, a peeling-off condition (time, speed, lever) may be set to an adequate one by one of the time, the speed and the lever or the combination thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field of the Invention] The present invention relates to output devices such as electronic typewriters, facsimile machines, printers used in recording units of personal computers, etc., or word processors, etc. that contain ink. The present invention relates to a recording device that uses an ink sheet to obtain a recorded image in a color corresponding to color information. Note that the present invention includes not only cases in which the aforementioned color information means different colors, but also cases in which they mean the same color.

[Conventional technology]

Conventionally, printing apparatuses capable of obtaining recorded images in colors corresponding to color information use a wide ink ribbon coated with ink layers of different colors in the width direction, and use a wide ink ribbon coated with ink layers of different colors in the width direction. The ink layer of the desired color had to be guided to the recording section by rotating the ribbon in the vertical direction.

[Problem that the invention seeks to solve]

Therefore, the above-mentioned conventional apparatus requires a means for vertically rotating the ink ribbon, which has the problem of making the apparatus larger and more complicated.

Means for Solving Problem C] Therefore, the applicant of the present invention previously disclosed the following multicolor ink ribbon technology in Japanese Patent Application No. 59-260403.

That is, in order to perform clear recording in multiple colors on a recording medium, a first ink layer and a second ink layer having different tones are provided on a support in order from the support side, and heat is applied from the support side. After applying energy, when the recording medium and the support are peeled off, the selected color can be applied to the recording medium by changing the time from the application of the thermal energy until the separation of the two. It forms a recorded image.

Furthermore, the applicant disclosed the following technology in Japanese Patent Application No. 60-298831.

That is, the first ink layer and the second ink layer are formed on the support.
A thermal transfer recording medium having two ink layers and an adhesive layer at least on one side between the two ink layers or between the first ink layer and the support is brought into contact with the recording medium, After applying thermal energy to the thermal transfer recording medium according to the recorded information, a predetermined ink layer is applied to the recording medium by controlling the peeling time from the time of application until the thermal transfer recording medium and the recording medium are peeled off. By transferring, a recorded image of a selected color is formed on a recording medium.

The present invention further develops the above technology,
In a recording apparatus that records on a recording medium through an ink sheet, the sheet is heated by a heating means, and the information recorded on the recording medium is erased using an erasing sheet.
Erasing means for erasing on the recording medium, instructing means for instructing erasing by the erasing means, determining means for determining conditions for erasing based on a command from the erasing instructing means;
The present invention is characterized by comprising a control means for controlling the erasing means based on the erasing condition determined by the determining means.

[Effect]

According to the present invention, when an ink sheet is attached to the attachment section and recording is performed, a clear image in a color corresponding to color information can be recorded on a recording medium.

〔Example〕

In the embodiments described below, an example is provided in which a first loading section common to both can load not only a single color ink ribbon but also a multicolor ink ribbon, and a second loading section capable of loading a correction ribbon for correction. show.

In other words, the embodiments described below are based on an example of an electronic typewriter that has a mechanism to enable the use of multicolor printing ribbons and lift-off ribbons (collector pull ribbons). .

FIG. 1 is an external perspective view of a typewriter T, which is an output device to which an embodiment of the present invention is applied.

In the figure, 1-1 is a platen, 1-2 is a recording paper, 1
-3 is an exterior, 1-4 is a power switch for controlling power on/off, and 1-5 is a keyboard.

Note that the keyboard 1-5 and the main body side may be separate bodies. 1-6 is a foot switch that is turned on and off by opening and closing the hood 1-3a, which senses the opening and closing of the hood 1-3a and shifts the ink ribbon (described later) to a predetermined position when the hood 1-3a is opened. The keyboard is locked by a ground signal that emits a signal to activate the keyboard. MOKY is a mode key 1 used to set various modes such as ribbon mode setting, which will be described later.

PRKY is a print command key. RV is a density setting volume key, which is used to set data as parameters for printing or erasing operations, which will be described later. Also, S.K.
Y is a key for instructing erasure.

The typewriter T also has a built-in printing section, input section, display section, control section, external input/output interface section, and the like. It goes without saying that in this embodiment, the input section and the display section may not be provided or may be provided separately. Further, in the present invention, the information to be output may be characters, symbols, figures, images, or a combination thereof.

In this example, these are representatively referred to as characters.

FIG. 2 is a schematic diagram of the carriage of the typewriter T. FIG. 3 is an enlarged view of the carriage. The 11-a and tt-b portions of the cassette 11 of the first ribbon 10 (single-color ink ribbon or the above-mentioned multicolor ink ribbon) are fitted with the 12-a-12-b portions of the ribbon plate 12 on the main body side, The cassette 11 is removably and elastically loaded into the ribbon plate 12 by means of the coupling member 12-C. A metal plate 13 is pasted on the ribbon plate 12 to release static electricity generated inside the cassette 11. Further, the ribbon plate 12 is coupled to a body 14 (carriage) by a holder 15. Note that S is a sensor that detects the presence or absence of the cassette 11 on the plate 12 or the type of ink ribbon attached to the plate 12. 16 is a second ribbon (correction ribbon),
The ribbon is wound onto a winding core 23 via pulleys 19 and 20 fitted to shafts 17 and 18 and ribbon guides 21 and 22. Note that these parts for the second ribbon may be configured to be integrally attached to a plate (not shown). The arm guide 24 is fitted with a shaft 25 protruding from the body 14,
One end 24a rests on the cam surface 26a of the cam 26, and one end 24a rests on the cam surface 26a of the cam 26.
4b is loosely engaged with an arm 27 that is connected to the ribbon plate.

Now, the head arm 28 is a member that supports the thermal head 29. Further, 30 is a peeling member (second member) pressed against the platen 1-1, and the head lever 28, the thermal head 29, and the second member 30 are both connected to the ribbon outlet of the cassette 11 for the first ribbon lO. 11c and the storage opening lid, and also between the second ribbon outlet 21 and the storage opening 22. Note that this peeling member 30 is in the shape of a kite, and is attached to the platen l-, by a mechanism described later.
It is possible to move toward and away from 1. That is, the ribbon cassette 11 has a ribbon outlet 11c and a storage opening lid.
The ribbon 10 is built in with a part thereof exposed. The thermal head 29 then heats the ribbon 10 at this exposed portion. Further, the thermal head 29 and the peeling member 30 are located between the draw-out port 11c and the storage port 11d of the ribbon cassette 11 mounted on the ribbon plate 12. Note that, as described later, this peeling member 30 controls the timing at which the ink ribbon IO and the recording paper 1-2 are peeled off after the ink ribbon IO is heated by the thermal head 29.

Further, the spring 31 is connected to the head pressure arm 45 and the head arm 2.
8 and generates pressure to press the thermal head 29 supported by the head arm 28 against the platen.

Note that the spring 32 is a spring for returning the head arm 28 and the head pressure arm 45 to their initial positions.

Note that the thermal head may also be a laser head that performs printing using a laser or the like.

Next, FIG. 4 is a diagram of the operation mechanism of the winding mechanism of the first ribbon and the second ribbon, and the helad arm 28.

In the figure, 40 is a card holder, which is connected to the body 14 with screws 41.

Further, a cover gear is cut on the back side of the cam 42 and is driven by a motor 43. There is a cam track 42a on the upper surface of the cam 42, along which a pin 44 and a head pressure lever 45 connected thereto rotate around a shift shaft 46. In addition, the head arm 2 is coaxially connected to the shift shaft 46.
8 are loosely engaged, and a retaining ring 48 via a spring washer 47 prevents it from coming off.

Further, the cam 26 and the cam 42 are connected to a shaft 4 extending from the body 14.
9, and is pressed from above by a plate 50 to prevent it from coming off. Plate 50 has screws 51:5
It is connected to the body 14 at 2.

Further, on the head arm 28, there is an arm 51 for supporting the second member 30, its rotation center axis 52, etc., a connector 53 for electrically connecting with the thermal head 29-, and a flexible board 54. By terminal block 56
electrically coupled with The head arm 28 and the thermal head 29 are mechanically coupled by a coupling member 55.

Further, the shaft 80 protruding from the body 14 is connected to the ribbon plate 1
The platen 1-1 on the lower surface of the platen 1-1 is fitted into an elongated hole in a direction perpendicular to the platen 1-1 for left and right positioning. Furthermore, ribbon plate 1
There is a ribbon winding unit under 2, and holes 60 and 61
It is connected to 62a and 62b of the ribbon plate stand 62 via. On the 12 ribbon plates, there are shafts 63, 64,
There are 65 and 66. Here, 66 is a ribbon winding motor,
A one-way clutch 68 that transmits rotational force in only one direction is provided on the cover gear 71 which is meshed with the gear 67 loosely engaged with the shaft 63, and a friction clutch 69 that transfers constant rotational torque is provided above the cover gear 71.
is provided. This leading end 70 is coupled into the winding core of the first ribbon cassette 11. .

Further, a spur gear 72 is provided on the outer periphery of the cover gear 71, and meshes with a wheel 73 that is loosely engaged with the shaft 64.

A one-way clutch 74 that transmits rotational force in the same direction as the one-way clutch 68 is located above the wheel 73, and a spur gear on the outer periphery of the one-way clutch 74 is connected to a gear 75 that is loosely engaged with the shaft 65.
It meshes with the. Further, above this gear 75, there is a friction clutch 76 that transmits a constant rotational torque like the one-way clutch 68, and a leading end 77 is connected to the inside of the second ribbon winding recoa 23.

There is also a tension pulley 78 loosely connected to the shaft 66.
Rotates in one direction while generating constant reverse rotation torque,
The other direction rotates with a much lower rotational torque. Leading section 79 couples into second ribbon supply core 31 .

Therefore, in this embodiment, the first ribbon 10 is wound up by the forward rotation of the motor 66, and the second ribbon 16 is wound up by the reverse rotation of the motor 66.

Note that the sensor 90 is a left limiter for determining the position of the carriage and the frame.

Next, the function of the cam will be explained using FIG.

1) Function of the cam In FIG. 5, the pin 44 connected to the head pressure arm 45 creates an arc of radius R centered on the shift shaft 46 and including the center of the shaft 49 (here, the thermal head 29 is supported). The movement of the head arm 28 depends on the cam trajectory 42a, so when the power is turned on, the edge 42 of the shielding plate 42b on the outer periphery of the cam 42
It is positioned by the sensor 33 with respect to c. At this time, an arc of radius r centering on the shift shaft 46 and a cam trajectory 42
The displacement position X from the center of the axis 49 to the orbit 42a is shown in the drawing (the curve is shown in FIG. 9A, which will be described later) when the intersection point of a is set at 0° and θ is taken as shown in the figure. Also, θ=0
If the line where one end 24a of the arm guide of the cam surface 26a is located is 0°, then if θ' is taken as shown in the figure, the vertical displacement of the cam surface 26a]Y curve is the 9th
The result will be as shown in Figure B). One end 24a of the arm guide 24a and the other end 24b are loosely engaged with an arm 27 connected to the ribbon plate 12. The vertical displacement of the cam surface 26a with respect to the rotation of the cam 26 is determined by the arm guide 2.
It is transmitted to the arm 27 via 4a and 24b, and moves the ribbon plate 12 up and down. Further, since the cam 26 and the cam 42 are connected by a key 100 at the portion loosely engaged with the shaft 49, the respective X and Y displacements for the same angle of θ and θ' are performed at the same time.

2) Printing using the first ribbon 10 (for example, multicolor ink ribbon printing) When the cam 42 is initialized, in A) and B) of FIG.
Since θ=θ' is 20 degrees, the cam surface 26a is at the lowest position and the ribbon plate is in a lowered state, that is, the first ribbon 10 is in front of the thermal head 29 (the 10th
Figure (A)). At this time, the pin 44 is also at the lowest position of the cam track. At this time, the spring 31 causes the head pressure arm 4 to
The contact part 28a of the head arm 28 comes into contact with the contact part 45b of the head arm 28, and the position of the thermal head 29 at that time becomes the initial position (hereinafter, the counterclockwise rotation of the cam 42 is assumed to be 10).

i) Standby position When the motor 43 rotates 61 times in the direction of the arrow in FIG.
(See figure θ=θl). At this time, the head pressure arm 45 and
The head arm 28, which is pulled by the head pressure arm 45 with a spring 31, also rotates about the shift shaft 46.

At this time, the head 29 moves the print paper 1 on the platen 1-1.
Set rl so that it stops just before -2. This position is called the standby position. This position is from the printing position described later.
When the thermal head 29 is released from the printing paper 1-2, it is stopped at this point for a certain period of time, and if a printing command is input during that time, the printing operation starts from this position. If no printing command is input after waiting for a certain period of time, the thermal head 29 returns to the initial position by rotation of the motor 43 by -θl.

Therefore, when the thermal head 29 is at the initial position and a printing command is input, it does not remain at this position but directly rotates (θl+θ2) to the printing position.

ii) When printing the first spout position, as shown in FIG. 6(D), the motor 43 rotates the position by θ2 from the initial position in the direction of the arrow (standby position). At this time, the thermal head 29
is the printing paper 1-2 on the platen 1-1 when rotated by θX.
and the first ribbon 10 contact the platen at an angle of θH (see FIG. 6(C)) (θl<θX<θ2
). The head arm 28 stops rotating when the thermal head 29 comes into contact with the platen 1-1, but only the head pressure arm 45 rotates along the cam track 42a. At this time, a pressing force F (FIG. 6(C)) is applied to the thermal head 28 by the spring 31 applied between the two members.

iii) Second step character position As shown in Fig. 6 (D), the motor 43 is further rotated by θ3 from the initial position in the direction of the arrow (Fig. 9 θ3
(see position), the head pressure arm 45 further rotates until a radius difference r3-r2 is created, and the spring 31 further extends to apply a pressing force F' to push the platen l-1 of the thermal head 29. Further, the bent portion (contact portion) 45a of the head pressure arm 45 is bent over the arm 1 as shown in FIG.
Press 10. This arm 110 is held rotatably around a shaft 52, and the bending portion 45a is connected to the arm 11.
By pushing one end of the coil spring 112, one end 112a pushes the bent portion 51a of the arm 51 rotatably held on the shaft 52. Then, arm 5
The shaft 111 connected to the top of the ribbon 1 rotates in the direction of the platen 1-1, and the second member 30 (separation member) rotatably held at the tip of the shaft 111 is attached to the platen through the first ribbon IO. 1-2 and presses with force F'. F' is a force larger than the accommodation force (ribbon tension) f of the first ribbon 10.

By this operation, the timing at which the ribbon IO is peeled off from the printing paper on the platen 1-1 can be delayed by l, making it possible to handle various types of ribbons, such as multicolored ribbons, for example. Therefore, by controlling the motor 43 as described above in accordance with the color information, it is possible to obtain, for example, a black record or a red record. For example, in the case of using the above-mentioned multicolor ribbon, when the peeling member 30 is applied to delay the peeling, a red record can be obtained when a black record is normally produced.

vi) After the printing is completed, the operation opposite to that described above is performed. That is, when the cam 42 rotates by -(θ3-θ2) due to the rotation of the motor 43, the arm 110 is bent and released from pushing 45a. Then, due to the return force of the coiled spring, the shaft 52
The arm 51 is further rotated by the spring 57 about the shaft 52 in the opposite direction to the platen 1-1, and returns to the initial state. Furthermore, the motor 43 moves the cam 42 to −(θ
2-θl), the thermal head separates from the platen, the head arm and head pressure arm rotate by the force of the spring 31 until 45b and 28b come into contact with each other, and the thermal head returns to the standby position (Fig. 5 (B). )) becomes.

Further rotation by -θ1 returns to the initial position (Fig. 6 (A)
).

During this time, the cam 26 also rotates together with the cam 42, but the cam surface in contact with the one end 24a of the arm guide 24 is
) (the height h remains constant even when rotated up to θ'=03)
The ribbon plate 12 does not move because it is maintained at 0.

3) Correct printing using the second ribbon 16 (for example, correcting erroneous recording using a correction ribbon) Second ribbon 16
For printing, a second ribbon 16 is used in place of the first ribbon 10 in the thermal head 29 as shown in FIG. 10(B).
must be raised to the front of the For this purpose motor 4
3, the cams 42 and 26 are rotated from the cam initial position to 07 in FIG. 9 in a direction opposite to that during first ribbon printing. Then, the cam trajectory of the cam 42 is as shown in Fig. 8 ('A) (
Since the radius ro remains, the head pressure arm 45 and the head arm 28 and the members supported by them do not move. However, the cam surface 26a of the cam 26 rises from ho to hl, as shown in FIG. 9(B). This movement is transmitted to the arm 27 by the arm guide 24, the ribbon plate 12 rotates around the shaft 58, and the second ribbon 16 rises to the front of the thermal head 29.

The subsequent sequence is the same as the first ribbon printing sequence, and the rotation angle of the cam 42 may be changed as follows.

0 → θl) θ7→θ6 θ1→θ2 Q θ6→θ5 θ2→θ3 Q θ5→θ4 At this time, the cam 26 connected to the cam 42 also rotates to θ4, but the height of the cam surface 26a is maintained at hl. Therefore, the ribbon 10 does not move. Therefore, correction printing is performed using the ribbon 16 according to the above-described sequence.

As described above, in the above-mentioned embodiment, the rotation of the motor 43 allows the second ribbon 16 attached to the ribbon plate 12 to be heated by the thermal head 29, and to retreat from the heated position. and the movement between the ink ribbon 10 or the ink ribbon 1 of the thermal head 29.
6 and a retracted position where the retracted position is retracted from the pertinent contact position.

Further, in the above embodiment, in conjunction with the movement of the peeling member 30,
It is also practiced to make the contact force of the thermal head 29 with respect to the ink ribbon 10.16 variable. That is,
When the peeling member 30 contacts the ink ribbon 10, the contact force of the thermal head 29 against the ribbon 10 is stronger than in the normal case.

As described above, in this embodiment, multicolor printing or correction printing can be selectively performed.

[Configuration block diagram]

Next, the operation of the output device having the above configuration will be explained.

FIG. 1I is a block diagram of the configuration of an output device to which the present invention is applied.

The CPU is a central processing unit that performs various controls. KB is a keyboard, RAM is a memory for performing various arithmetic operations, ROM is a memory that stores control programs to be described later, and TRAM is a memory that stores text information to be output such as documents. PT is CP at port
U is connected to the aforementioned motor 43. through the port and driver. Second
It controls the rotation of a motor 66 that winds up the ribbon. Further, the thermal head 29 is driven by the DATA line and/or voltage control. Also, ROM for character fonts
(FROM), communication interface, R3232C
, Communication with the outside world is possible via the Centronics interface. Further, RV is a density setting volume that supplies data to the CPU as parameters for controlling printing density and erasing, which will be described later, by changing current, voltage, and time.

[Power on sequence]

A flowchart of the power-on sequence will be explained in FIG. When the power is turned on at S1, the sensor 33 (limit switch) explained in FIG. 5 determines whether it is on or off at S2. Here, "on" refers to a time when the sensor 33 is not detecting the baffle plate 42b. If Yes in S2, cam 42 in S3.
is rotated to the right in FIG. Then, in S4, when the shielding plate 42b is detected by the sensor 33 (OF
F) Proceed to S5.

In addition, when the sensor 33 is OFF in S2, that is, when the sensor 33 is detecting the shielding plate 42b (when the shielding plate 42b is shielding between the light emitting part and the light receiving part of the sensor 33), the process advances to S6, The cam 42 is rotated to the left in Fig. 5, and when the sensor is turned on (S7), the cam is stopped exactly at the position shown in Fig. 5 (S5).
. Next, at 86, the motor 140 moves the carriage to the left relative to the platen (see FIG. 2). This is because sensor 90 (limit sensor) is OF in S7.
This is to determine the absolute position of the carriage by performing F. Then, the carriage is stopped at that position (S8).

Next, at 89, move the motor 66 shown in FIG.
(to the left) and wind the first ribbon 10 so as to remove the walnut. Next, rotate the motor 66 clockwise,
Wrap the second ribbon 16 around the walnut. This completes the power-on sequence. In order to simplify the explanation, the explanation of the motor as the drive source will be omitted hereinafter.

[Key human power sequence]

Next, the key manual sequence will be explained. When DATA is input from the keyboard at S1, it is determined at S2 whether or not it is a print command. If NO, the process advances to S3, and it is determined whether the input data is an erase command. If NO, the process proceeds to other functions, but will be omitted here. If the input data is an erase command in S3, the process advances to S4, where it is determined whether the attached first ribbon IO is a collector ribbon, and if No, the process returns to S1. If YES in S4, the process proceeds to S5, and proceeds to an erasing routine to be described later.

Next, in 82, if the input data is a print command,
Proceeding to S6, it is determined whether the attached ribbon is a ribbon for two-color printing and the command is for basic color (black) printing. Yes
If it is s, set the rotation angle of the cam for two colors and black,
If the answer is No, the process directly proceeds to the printing routine of S8, which will be described later.

[Print routine (cam control)]

Next, the printing routine will be explained with reference to FIGS. 14-1 and 14-2. Note that the printing routine should be easy to explain (cam control will be explained in Fig. 14-1, and overall control will be explained in Fig. 25).

First, at Sl, the carriage is moved to a position further back by the acceleration section from the beginning of the next printing position. Next 82
The dot image for input characters is converted to character font RO.
Read from M (FROM) and work RAM (RA
M). Next, in step 83, it is determined whether a ribbon capable of printing in two colors is attached and the command is to print the basic color (black). If Yes, proceed to S5 and proceed to the 6th
The position of the radius r3 of the cam 42 (shaft 49
Rotate the cam 42 to the left as shown by the arrow in FIG. 6 until the pin 44 is located at the distance between the cam and the pin 44. If S3 is No, in other words, if the ribbon is for one-color printing or the auxiliary color (ex red) is to be printed on the ribbon for two-color printing, the pin should come to the r2 position of the cam 42 (see Fig. 6). (C)) Rotate the cam to the left.

Next, S6. In S7, winding up of the first ribbon IO is started, and movement of the carriage is started, and in S8, after completion of acceleration of the carriage, low-speed running is performed. In S9, printing should be performed (applying a dot image voltage to the thermal head 29. Next, after the application of a predetermined energy is completed in SIO (
S10), determine whether the information just printed was printed in the above basic color (Sll), and if Yes, S12
Proceed to and overrun by l.

If No in Sll, the process directly proceeds to S13, where the carriage is decelerated, and in S14, the carriage is stopped, and the winding of the first ribbon 10 is completed.

Next, in S15, the cam is rotated clockwise relative to the pin 44 to the position rl (FIG. 6(B)), and the head is returned to the print standby position. Next, at 316, the carriage is returned to a position indicating the next printing position. mode and turn the timer ONL in S17, S1
9, it is determined whether or not the next person's 6 data have been received by the time 0.5 seconds have elapsed (S18). If Yes in S18, the next printing should be performed (proceed to Sl).Also, if No5S19 is Yes in S18 and there is no next input data within 0.5 seconds after printing, proceed to S20 and print the cam 4.
2 is rotated clockwise to the initial position shown in FIG. 6(A), and the printing sequence is completed.

FIG. 14-2 is a time chart of a printing sequence corresponding to each step of the printing sequence shown in FIG. 14-1. In this example, where the horizontal direction is time and the vertical direction is a control signal of 0.1, it is low active.

[Erase routine]

Next, the erasing routine will be explained. Figure 15-1 shows
FIG. 3 is a diagram showing a control flowchart of an erasing routine. First, at SL, the carriage is moved to a position that is back by an acceleration section distance from the leading position of the printed character to be erased. At S2, the cam 42 is rotated clockwise relative to the pin 44 to a position of radius r2 (FIG. 8(C)). S3. 2nd in S4
Start winding up the ribbon (erasing ribbon) 16, and
Start moving the carriage. The carriage is accelerated in S5 and then travels at a constant speed. Then, in S6, all the dots on the thermal head 29 are heated to perform erasing, and in S7, the carriage is moved by one character, and after performing erasing, the heating is ended. Next, the carriage is decelerated, and in S9 the carriage is stopped and the second ribbon is wound up. Next, at SIO, the cam 42 is rotated counterclockwise to the r1 position with respect to the pin 44 (FIG. 8(B), standby position). Then, with Sll, the carriage is returned to the position indicating the erased character position. Next, S12. S13. 0 after erasure is completed in S14
．． It is determined whether or not there is next input data within 5 seconds. If there is no next input data, the process proceeds to S15, the cam is rotated counterclockwise to the initial position, that is, the position shown in FIG. 8 (A), and the erasing routine is ended. do. If there is next input data in S13, the process returns to S1.

Note that FIG. 15-2 is a time chart corresponding to each step of the erasing routine shown in FIG. 15-1.

Note that the horizontal axis is time, and the vertical axis is control signals 0 and 1, which is lo in this example.
w active.

[Elimination/Other Examples]

Next, an application example of the above-described erasure sequence will be described.

As the second ribbon, which is the erasing ribbon, an erasing ribbon made of a base film such as a polyester film and coated with a heat-sensitive adhesive material on the printing paper side is used.

FIG. 16 shows a graph of the adhesion force between the erasing ribbon and the image to be erased which are pressed and heated by the thermal head 29 onto the image to be erased on the recording paper 2, and the change over time in the temperature of the erasing ribbon at that time. The values in this graph show an example obtained through our experiments and calculations, and may vary depending on the thickness of the base film used, the material of the energy recording ribbon of the thermal head 29, etc., so specific values may vary. However, it is not limited to this.

In FIG. 16, the thermal head heating time 203 (2 m5ec in FIG. 16) by the thermal head 29
The erasing ribbon heated by the temperature curve 201 shows a temperature curve, and after a time 204 has elapsed, the temperature drops to about the room temperature level.

Accordingly, the adhesive force between the erasing ribbon and the image to be erased draws a curve as shown by curve 202. In other words, the adhesive force was zero before heating (that is, the ink adhered to the paper), but it becomes sticky due to heating, and as the temperature of the curve 201 decreases after heating, the adhesive force increases.
Adhesion is at its maximum when the erase ribbon temperature returns to room temperature. Taking FIG. 16 as an example, the time for this is about 6 m5 ec after the end of heating. This value varies depending on the conditions of the apparatus, ribbon used, etc., but is a value determined in advance through experiments, calculations, etc.

Therefore, in order to erase the characters to be erased without leaving any erased characters on the printing paper 2 side, the erasing ribbon is used to remove the image to be erased from the printing paper 204 after the end of heating by the thermal head 29 in FIG. 16. It is necessary to remove it from step 2. However, if the print density of the characters to be erased is low, that is, if the adhesive strength between the paper and the characters to be erased is low,
Erasing is possible even if the time is less than 204 hours.

A flowchart for this purpose is shown in FIG. 17, and the explanation will be based on it.

The difference from the above-mentioned (main patent) erasing routine (FIG. 15-1) is that at step 30.5, it is checked whether the concentration setting volume Rv is greater than the set value and time T1 or T2 is set in the timer. 22, for example, when the concentration Rv is high T11 when it is low T
2 (TI>T2). In S6, the timer is turned on at 87 at the same time as the heat ends, and the timer value is set in S10 after the carriage stops in S9 (in the example in Fig. 16, the maximum value is 6 m s at time 204).
e c) Check whether the time has elapsed, and if it has, the ribbon is wound up for one character for the first time. The behavior of the erasing ribbon and the image to be erased at this time will be explained with reference to FIG.

FIG. 18(a) shows the area between 35 and 86 in FIG. 17.

FIG. 18(b) shows the state shown in FIG. 1789, in which the erasing ribbon 16 has not been wound up yet, so the image to be erased 20
It remains glued to 6. After this, in the SIO of Figure 17, if it is determined that the time set in the timer (for example, TI, T2) has elapsed after the end of the heat, the first
7 In Fig. 35l, the erasing ribbon 1°6 is rolled up by one character towards the arrow 207 side, resulting in the state shown in Fig. 18(C).
The image to be erased 206 remains adhered to the erasing ribbon 16 side,
It is peeled off from the printing paper 2.

That is, after the time set in the timer has elapsed after the erasing ribbon 16 is heated, the adhesive force with the image to be erased 206 reaches its maximum, and then the image to be erased 206 is peeled off from the printing paper 2. . The time until peeling is T! or T2
does not need to be longer than time 204 in Figure 16;
Of course, the time may be shorter than the time 204 as long as the adhesive force is stronger than the adhesive force between the image to be erased 206 and the printing paper 2 at the time of peeling. The flowchart shown in FIG. 1 after SIO is exactly the same.

Next, still another embodiment in which erasing is performed reliably will be described.

That is, here, a case will be described where the running speed is slower than the normal printing speed in order to ensure erasing. Figure 19 shows 5 of the erasing routine shown in Figure 15-1.
This is a case where l-S5 is changed, and will be explained below based on FIG. 19. FIG. 20 is an explanatory diagram of the operation in which the speed is changed to facilitate erasing. 207 is a heating element provided in the thermal head 29, and L is a distance from the end surface of the thermal head 29 to the end of the heating element 207. (2) is the running speed of the carriage, that is, the running speed of the thermal head 29. As is clear from FIG. 20, the erasing ribbon 16
The peeling off of the image to be erased 206 from the printing paper 1-2 is performed after the erasing ribbon 16 is heated by the heating element 207 and passes through the distance ML at the speed V.

That is, if the distance of the erasing ribbon 16 is L (mm) and the speed is V (mm/sec), peeling will start at (L/V) x 1000 [m5ec] = T after heating is completed. In addition, the value Lo (constant value) is determined based on the characteristics of the thermal head 9. Therefore, this T (msec) is the time 204 (FIG. 16).
If you set the speed V so that it becomes thicker (Lo/V
=To>204) Since the erasing ribbon 205 is peeled off after its temperature has been sufficiently lowered, good erasing is performed as explained in FIG. 16.

Now, considering the recording (printing) side, in recent years, the recording speed has tended to be faster than the market requirements, and the traveling speed V' of the carriage 3 has also tended to increase accordingly.

The carriage speed of current general thermal transfer printers is approximately 50 mm / s e C ~ 150
m m /sec.

In order to stably secure the time 204 in Fig. 16 at this speed (for example, if the time 204 is 10 m5ec, L = 0, 5 mm or more), the distance becomes large, and conversely, the distance of the printing ribbon during recording increases. If the temperature drops too much, good printing quality cannot be obtained.

Therefore, in order to improve the erasing performance without adversely affecting the print quality, the traveling speed of the carriage 3 during erasing should be set to the above-mentioned value V, and the value of V must be slower than the carriage traveling speed during printing. There is (v <'v'').

Although this slows down the erasing processing speed during erasing, it can be ignored because it is used less frequently than in printing. As explained above, by making the carriage traveling speed variable,
By controlling the above-mentioned appropriate erasing time during erasing by the running speed, erasing can be performed extremely efficiently (and reliably).

Note that the time until peeling does not need to be longer than time 204 in FIG. 16, and may be shorter than time 204 as long as the adhesive force is stronger than the adhesive force between the image to be erased 206 and the printing paper 1-2 at the time of peeling. Of course it's a good thing.

At 30.5 in Fig. 16, if the value of the concentration volume is larger than a certain set value, the constant traveling speed of S4 is set to the first speed, and if it is higher than that, the second speed is set (the first
Speed (second speed). The following continues with FIG. 15-1 86. Thereby, erasing can be performed reliably according to the density.

Also, by setting the head heat voltage value in the memory (work RAM RAM) at Sl, 2 or Sl, 4 in Fig. 19, the heat drive voltage (energy) can be controlled according to the concentration and erased reliably. It can be performed.

Next, another embodiment for ensuring erasing will be described.

In other words, here we use the erase ribbon 1 to ensure erasing.
6 from the recording paper 1-2 using the above-mentioned peeling member 30.

A flowchart for this purpose is shown in FIG. 21, and the explanation will be based on it.

31.5, if the concentration volume is above the set value, the cam 42 is rotated to the r3 position, and if it is lower than that, the cam 42 is rotated to the r2 position.
Rotate to position.

In S2, the second step is to rotate the cam to the r3 position.
Since the second member 30 is also used during the erasing operation (FIG. 8(D)), the second member 30 is also used in S8.
By overrunning the carriage by a distance l from 1 to 3, it is possible to ensure that the erasing ribbon is peeled off from the printing paper 1-2 to the left of the second member 30. Thereby, erasing can be performed reliably according to the density.

The rest is the same as the erasing routine shown in Figure 15-1,
The steps after Sll are the same as Sll in FIG. 15-1.

The state of erasing near the thermal head 29 at that time is shown in the second section.
This will be explained using Figure 2.

In FIG. 22, 16 is an erasing ribbon, 206 is an image to be erased, 207 is a heating element provided on the thermal head 29, and V
υ indicates the carriage speed, that is, the speed of the thermal head 29 in the direction of the arrow.

After the erasing ribbon 16 is heated by the heating element 207 of the thermal head 29, the erasing ribbon 16 can peel off the image to be erased 206 from the print paper 1-2 with a delay of l.

Therefore, after being heated as described in FIG.
6 and the image to be erased 206 until the time 204 at which the adhesive force reaches its maximum elapses before peeling, the carriage speed does not become Vυ, and this can be carried out very easily, and good erasing quality can be obtained.

Note that the time until peeling does not need to be longer than time 204 in FIG.
If the adhesive strength is stronger than that of printing paper 1-2, the time is 20.
Of course, it may be shorter than 4.

Note that any one of the above-mentioned peeling conditions (time, speed, lever) or a combination thereof may be set to an appropriate condition.

[Printing example]

Next, actual printing will be explained in more detail.

FIG. 23 shows the actual recording on the recording paper and the movement of the center position of the heating element of the head. A is the width of one character (head movement amount), B is the amount of overrun after printing when the auxiliary color (red) is printed with the ribbon for two-color printing, and l is the basic width depending on the ribbon for two-color printing. This is the amount of overrun after printing when color (black) is printed.

Figure 24 is based on text information (including spaces, etc.) from the text RAM, and the text includes, for example, codes and
Stores dot information. As is clear from the figure, (1) in Fig. 24 is a recording example in which one line is recorded. As is clear from the figure, HIJKL tw M can be freely changed from black to red to red to black to black to - to red within one line. This shows how the color has changed.

Figures 24 (2) and (3) are diagrams showing the movement of the head corresponding to one line of printing in Figure 24 (1).
), the data is sequentially read from the memory, and the head moves in the opposite direction only when the color changes from black to red. Figure 24 (3) is 1
It shows movement for each character. In other words, the overrun amount l or B is returned for each character. Actually, since an acceleration region is required, it is necessary to return to a larger amount than that, but this is omitted to simplify the explanation. In addition, the last B in Figure 24 (2) and (3)
The only thing that is returned is for the next printing.

[Printing routine (overall sequence)] Next, the printing routine will be explained with a focus on the movement of the head (equivalent to a carriage or carrier).

First, in Sl, it is confirmed that there is no space command, and the process proceeds to S2. If the character string shown in (1) in FIG. 23 is to be recorded, there is an H (black) print command, so the process proceeds to 83. Since the printing color is black, the motor is driven in S4 to lower the thermal head 29 and peeling roller. S5
, the carrier drive motor 140 is rotated in the normal direction to move the carrier in the printing direction, and in S6 the heating element is energized to print, and when the area corresponding to one character, that is, the specified amount [A] has been moved (S7). The heating element is energized (S8)
do. Note that this specified amount [A] may be variable depending on the character.

Next, at 89, the next letter I (red) (Fig. 24 (1)
) because there is a print command, the process advances to SIO, and since it is a print command, the process advances to 828. Here, since the immediately preceding is not a space (the immediately preceding is H), the process proceeds to S32, and since H is printed in black, it is 333, and the next printing color is red, so it is 534. In S35, the carrier drive motor is rotated in the forward direction to move the current print H (black) until it is completely peeled off by the peeling row. Here, the carrier is stopped (S36) and the thermal head and peeling roller are raised (S37). Then, the carrier drive motor is reversed and moved to the printing start position of the next character. In other words, move the specified amount [1 piece (338), and then,
The carrier is stopped (S39). Then, the thermal head is lowered (S15) and printing of I (red) is started. Then, in the same way as printing H (black), S5→S6→S
7... → S8 → S9, and from the next print command J (red), SIO → S28, and the previous one is 33 because ■ is printed.
Proceed to 2, the print of ■ (red) is red, so proceed to 340, the next print color is J (red), so proceed to 85, and as before, S5 →
S6→S7~S8→S9→S10→S28→S32→S
40, the next print color is K (black), so lower the peeling roller at 341, return to S5 and print again, same as last time S5 → S6 → S7 to S8 → S9 → SIO → S28 →
Proceed to S32, the current print color is K (black), so proceed to 333, the next print color is L (black), so return to 85 and print again, and as before, S5 → S6 → S7 ~ S8 → S9 → SIO
Since the next command is a space command, the program advances to Sll and moves the carrier by -characters (S12). Then, the process returns to S9 and proceeds to SIO, and since the next print is M (red), the process proceeds to 528.

Here, the immediately preceding space is a space, so go to 529, the print before the space is black (L), so go to 330, the next print color is red (M), so go to 331, raise the peeling roller, and go back to S5. Print again, same as last time, S5 → S6
→ S7 to S8 → S9, and if there is no next command, S9
The process advances to S16, and then in S17, the current print color is red (
M) Therefore, the process proceeds to S24, the carrier is moved by the red overrun amount, that is, the prescribed amount [B], and peeling is performed, and the carrier drive motor is stopped in S25. and S
At step 26, the thermal head is raised, and at step S27, the carrier drive motor is reversed to move the carrier by a specified distance i [B], and the carrier is stopped at the next printing position (step S22). and,
The process advances to S23, and since one line has been completed, the process goes to END.

It goes without saying that the term "multicolor" in the present invention includes a case where a plurality of the same colors are used.

〔effect〕

As described in detail above, the present invention enables the erasing operation of recorded characters to be performed even if the device has a thermal head.
It is now possible to do this reliably.

In addition, the device heats an ink sheet to perform printing, and has the advantage of being able to selectively use an ink sheet that can selectively print in multiple colors at the same position and a collector ink sheet. be.

Further, according to the present invention, there is provided an apparatus for printing by heating an ink sheet, and in order to ensure the erasing operation, the peeling conditions between the recording medium and the ink sheet are set such that, for example, the conditions for peeling off the ink sheet after printing are set. When controlling by time such as timing, for example, the slack of the sheet is controlled by winding up the sheet by a motor, the recording speed is controlled by the movement of the head of the heating section, or the sagging of the sheet is controlled by the movement of the head of the heating section, or by controlling the peeling lever. This can be done by controlling movement.

Furthermore, by combining these, it has become possible to provide an apparatus that can be set to optimal conditions.

Further, according to the present invention, in an apparatus that heats an ink sheet to print, the head for printing characters is also used to erase characters, and furthermore, the head for printing characters is used to erase all dots in the area of the characters to be erased. By heating the paper sheet, erasing can be performed reliably.

Further, according to the present invention, in an apparatus that performs printing by heating an ink sheet, multicolor recording can be switched multiple times within one line.

Further, according to the present invention, when recording is performed using an ink sheet for multicolor recording, recording can be performed efficiently by performing the operation necessary for switching colors in conjunction with the recording operation, such as a space operation. I can do it.

Further, according to the present invention, in an apparatus that performs printing by heating an ink sheet, the amount of relative movement between the sheet and the heating position can be made variable within one line depending on the color to be recorded.

Further, in the device according to the present invention capable of printing in multiple colors by heating an ink sheet, it is possible to change the color from the first color to the second color or from the second color to the first color, respectively. Accordingly, the peeling of the ink sheet after recording with the first color and the recording operation with the next color can be controlled, and multicolor recording can be performed efficiently.

Further, according to the present invention, in an apparatus that heats an ink sheet to perform printing, the pressing force of the head on the ink sheet can be
By making it variable according to color information when performing multicolor printing, appropriate printing can be performed.

Further, by varying the pressing force of the head for erasing and the pressing force of the head for printing via a collector sheet, proper erasing can be performed.

In addition, depending on recording conditions such as print density, during erasing, the head position control, carriage movement speed control, erasing sheet winding timing control, peeling lever control, or erasing can be performed. By variably controlling the energy used or a combination thereof, it has become possible to perform erasing extremely efficiently and reliably.

Further, according to the present invention, when a return, space, or skip occurs in response to a color conversion command, it is possible to perform chromaticity change without stopping the carriage movement.

Further, according to the present invention, in an apparatus that performs printing by heating an ink sheet, a member for peeling off the ink sheet is provided between the supply side and the receiving side of the ink sheet, and a space (space) is provided.
This has the effect of allowing you to use it effectively.

Further, according to the present invention, in an apparatus that performs printing by heating an ink sheet, it is possible to selectively use a collector ink sheet and an ink sheet for multicolor printing, and in the ink sheet for multicolor printing, basic colors can be used. The peeling lever used when printing can now also be used to erase characters printed with the collector's ink sheet.

Further, according to the present invention, in an apparatus that performs printing by heating an ink sheet, an ink sheet of a collector or an ink sheet capable of selectively printing in multiple colors at the same position, and an ink sheet of the collector through the ink sheet of the collector It has become possible to provide a device capable of loading an erasing sheet for erasing printed characters.

Further, according to the present invention, a printing operation using a collector-full ink sheet or a printing operation using an ink notebook for multicolor printing, and a method for erasing characters printed via the collector-full ink sheet are provided. It has become possible to provide an apparatus that can drive an erasing operation using an erasing ribbon using one control member.

Furthermore, in the apparatus for printing by heating the ink sort according to the present invention, a member for peeling off the ink sheet can be provided on the apparatus main body side, and even if the apparatus can be replaced in various ways, the structure of the ink sheet side can be changed. It was possible to make it simple.

[Brief explanation of the drawing]

Figure 1 is an external view of an output device to which the present invention is applied, and Figures 2-
Fig. 4 is an explanatory diagram of the carriage, Fig. 5 is an explanatory diagram of the cam,
Fig. 6 is an explanatory diagram of the movement of the cam during recording, Fig. 7 is a perspective view of the drive mechanism of the peeling member 30, Fig. 8 is an explanatory diagram of the movement of the cam during erasing, and Fig. 9 is an illustration of the head and platen. 10 is a diagram showing the positional relationship between the platen, carriage, and ribbon, FIG. 11 is a block diagram of the configuration of the present invention, FIG. 12 is a diagram showing the power-on sequence, and FIG. 13 is a diagram showing the key Figures 14-1 and 14-2 are diagrams showing the manual routine, Figures 14-1 and 14-2 are illustrations of the printing routine, Figures 15-1 and 15-2 are diagrams of the erasing routine, and Figure 16 is an illustration of the erasing ribbon and the cover. A diagram showing the adhesive force of the erased image and the temporal change of the eraser ribbon temperature at that time, 1'! , Figures 19 and 21 are control flowcharts for reliable erasing, Figures 18 and 2.
0 and 22 are diagrams showing the state of peeling by the erasing ribbon 16, Figure 23 is a diagram showing the relationship between the recorded image and the amount of head movement, and Figures 24 (1), (2), and (3) are FIG. 25 is a flowchart for controlling the recording of a series of characters in one line, as shown in FIG. 24 (2). . /θ and 4 Figure 6 Figure (B) 1-1 8th mouth (C) (D) 26' 1st? Zu Teitouri ♀ Ho Seisho (Method) November 4, 1985 Patent Application No. 65079 of 1988 2, Invention name recording device 3, Relationship with the person making the amendment case Patent applicant address Ota, Tokyo Ward Shimomaruko 3-30-2 Name (100
) Canon Co., Ltd. Representative Ryuzo Kaku
Part 4. Agent residence: Canon Co., Ltd., 3-30-2 Shimomaruko, Ota-ku, Tokyo 146 (telephone: 758-2111) 5. Date of amendment order: October 27, 1985 (shipment date) 6. Subject of amendment Description 7, Contents of the amendment, page 47, line 13' (1), (2), (3)
Delete J.

Claims (7)

[Claims] (1) In a recording device that records on a recording medium via an ink sheet, the sheet is heated by a heating means, and the information recorded on the recording medium is erased using an erasing sheet. an erasing means for performing erasure on the body; an instruction means for instructing erasure by the erasure means; a determining means for determining conditions for the erasure based on a command from the erasure instructing means; and an erasure determined by the determining means. A recording apparatus comprising a control means for controlling the erasing means based on conditions. (2) In item 1, the erasing condition is characterized by controlling the start of movement of the erasing sheet to separate the erasing sheet from the recording medium after heating the erasing sheet. recording device. (3) The recording device according to item 1, wherein the erasing condition controls the heating energy. (4) The recording apparatus according to item 1, wherein the erasing condition controls the movement of a lever that changes the timing of peeling off the erasing sheet and the recording medium. (5) The recording apparatus according to item 1, wherein the erasing condition controls relative movement between a heating position by the heating means and the recording medium. (6) The recording apparatus according to item 1, wherein the erasing condition is based on the density of recording by the ink sheet. (7) The recording device according to item 3, wherein the energy is an output voltage or an output time from the heating means.