JPS6347189A - Recorder - Google Patents

Abstract

PURPOSE:To form a recorded image of a selected color on a recording medium to be recorded by applying heat energy to a heat sensitive transfer recording medium, then varying the shape of a separating member to control a time until an ink sheet or an erasing sheet and the medium to be recorded are separated, and transferring a predetermined ink layer on the medium. CONSTITUTION:When a motor 43 is rotated from an initial position to a standby position, a thermal head 29 is contacted with a platen through a printing sheet and a ribbon 10 at a predetermined angle, and a head arm 28 does not rotate, but since it is rotated along a cam trace 42a of a head pressure arm 45, a pressing force F is applied by a spring 31 to a thermal head 28. At this time, when the rotating speed of a ribbon is so selected that a leaf springlike separating member 40 overcomes Fo, the ribbon starts separating from the end face X of the head. Here, when the ribbon tension is weakened, it is contacted with the platen by a pressing force F'' at a point of a distance l from the end face X of the head, the timing of separating the ribbon from a printing sheet on the platen can be delayed by l, thereby coping, for example, with various types of ribbons, such as multicolor ribbon, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field of the Invention) The present invention relates to a printer used in a recording section of an output device such as an electronic typewriter, a facsimile machine, a personal computer, or a word processor. The present invention relates to a recording device that can use a 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.

(Prior Art) Conventionally, in a recording device capable of obtaining a recorded image of a color corresponding to color information, a wide ink ribbon coated with ink layers of different colors in the width direction is used to determine the color to be recorded. The ink layer of the desired color had to be guided to the recording section by rotating the ink ribbon in the vertical direction according to the ink ribbon.

[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 increasing the size and complexity of the apparatus.

[Means for solving problems]

Therefore, the present applicant previously disclosed the following multicolor ink ribbon technology in Japanese Patent Application No. 59-260403.

That is, in order to record clear multiple colors on the 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 after applying thermal energy from the support side, when the recording medium and the support are peeled off. A recorded image of a selected color is formed on the recording medium by changing the time from when the thermal energy is applied to when the two are peeled off.

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

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

The present invention is a further development of the above technology,
A recording apparatus that records on a recording medium using an ink sheet containing ink, a heating means for heating the sheet, an erasing sheet for peeling recorded information from the recording medium, and the heating means, It is used for both the recording operation performed using the ink sheet and the erasing operation performed using the erasing sheet, and after applying thermal energy by the tension of the ink sheet or erasing sheet, the ink sheet or erasing sheet The present invention is characterized in that the shape of the peeling member is changed in order to control the peeling time until the recording medium and the recording medium are peeled off.

[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 embodiment described below, a first loading section common to both can load not only a monochrome ink ribbon but also a multicolor ink ribbon, and a second loading section capable of loading a correction ink ribbon for correction. shows.

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 the 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, and detects the opening and closing of the hood 1-3a,
-3a is opened, the keyboard is locked by an inter-ground signal which generates a signal to shift the ink ribbon to a predetermined position, which will be described later. MOKY is a mode key 1, which is 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 a key for setting data as parameters for printing or erasing operations, which will be described later.

Further, SKY is a key for instructing erasure. Furthermore, the wooden typewriter T has a built-in printing section, input section, display section, control section, external input/output interface section, and the like.

Note that, of course, in this embodiment, the input section and the display section may not be provided or may be provided separately. Furthermore, even if the information output in the present invention is in the form of characters,
It may be a symbol, a figure, an image, 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 11-b sections of the cassette 11 of the first ribbon 10 (single-color ink ribbon or the above-mentioned multi-color ink ribbon) are fitted with the 12-a and 12-b sections of the ribbon plate 12 on the main body side, The cassette 11 is removably and elastically loaded onto the ribbon plate 12 by the coupling member 12-C. A metal plate 13 is pasted on the ribbon plate 12 to release static electricity generated within 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), which is wound around 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 -
@24b is loosely connected to the arm 27 which 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 a head lever 28, a thermal head 29, and a second member 30 are all connected to the ribbon outlet of the cassette 11 of the first ribbon 10. tic and the storage port ttct, and also between the second ribbon outlet 21 and the storage port 22. The peeling member 30 is shaped like a leaf spring, and is fixed to the head arm 28 by pins 100 and 101, and can be moved toward and away from the platen 1-1 by the tension of an ink sheet or erasing sheet, which will be described later.

That is, the ribbon cassette 11 has a ribbon outlet tic.
and a housing opening lid, and the ribbon 10 is housed in a partially exposed state. The thermal head 29 then heats the ribbon 10 at this exposed portion. Further, the thermal head 2
9 and the peeling member 30 are located. As will be described later, this peeling member 30 controls the timing at which the ink ribbon 10 and the recording paper 1-2 are peeled off after the ink ribbon 10 is heated by the thermal head 29. Further, the spring 31 is located between the head pressure arm 45 and the head arm 28, and generates pressure for pressing 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 winding mechanism of the first ribbon and the second ribbon, and the operating mechanism of 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.

Further, the head arm 28 is coaxially and loosely engaged with the shift shaft 46, and is prevented from coming off by a retaining ring 48 via a spring washer 47.

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. The plate 50 is connected to the body 14 by screws 51:52.

Further, on the helad arm 28 is a connector 53 that is electrically coupled to the thermal head 29, and is electrically coupled to a terminal block 56 by a flexible board 54. 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, there is a ribbon winding unit under the ribbon plate 12, and the ribbon winding unit is connected to the ribbon plate stand 6 through the holes 60 and 61.
It is combined with 62a and 62b of 2.

On the 12 ribbon plates, there are shafts 63, 64, 65, 6.
There are 6. Here, 66 is a ribbon winding motor, and a one-way clutch 68 that transmits rotational force in only one direction is provided on the cover gear 71 which is engaged with the gear 67 loosely engaged with the shaft 63 and the cover gear 71. A friction clutch 69 is provided to transmit torque. 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. Furthermore, above this gear 75, there is a friction clutch 76 that transmits torque similarly to the one-way clutch 68, and a leading end 77 is connected within the second ribbon winding core 23.

Also, there is a tension pulley 78 in play with the glaze 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 1o is wound up by rotating the motor 66 in the normal direction, and the second ribbon 16 is wound up by rotating the motor 66 in the reverse direction.

Here are the characteristics of friction clutches 69 and 76.
Let me explain the gender.

As shown in FIG. 7, the torque transmitted by the friction clutch changes depending on the number of revolutions per unit time. In the present invention, in the case of the friction clutch 69, the rotational torque of the front end 70 is the rotational torque of the front end 70 relative to the rotational speed of the cover gear 71, and in the case of the friction clutch 76, the rotational torque of the front end 77 is relative to the rotational speed of the gear 75.

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 Cam In FIG. 5, the bin 44 connected to the head pressure arm 45 draws an arc of radius R centered on the shift shaft 46 and including the center of the shaft 49. Here, since the movement of the head arm 28 that supports the thermal head 29 depends on the cam trajectory 42a,
Edge 42c of shielding plate 42b on the outer periphery of cam 42 when power is turned on
The position is determined by the sensor 33 with respect to. At this time, an arc of radius r centering on the shift shaft 46 and a cam trajectory 42a
Axis 49 when θ is taken as shown in the figure by closing O@ which is the intersection of
The curve drawn by the displacement position X from the center to the track 42a is shown in FIG. 9A), which will be described later. Also, when θ=0, if the line where one end 24a of the arm guide of the cam surface 26a is located is 06, then if θ' is taken as shown in the figure, the curve of the vertical displacement Y of the cam surface 26a is The result is as shown in Figure 9B). One end 24a of the arm guide and the other end 24b are connected to the arm 2 connected to the ribbon plate 12.
He is playing with 7. The vertical displacement of the cam surface 26a with respect to the rotation of the cam 26 is determined by the arm guides 24a and 2.
4b to the arm 27, and the ribbon plate 12
move up and down. Also, since the cam 26 and the cam 42 are connected by a key 100 at the portion loosely engaged with the shaft 49, θ
・Each X and Y displacement for the same angle of θ' is performed simultaneously.

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'=08, the cam surface 26a is at the lowest position, and the bottom of the ribbon plate is closed, that is, the first ribbon 10 is in front of the thermal head 29 (the 10th
Figure (A)). At this time, the bin 44 is also at the lowest position of the cam trajectory.

At this time, the contact part 28a of the head arm 28 comes into contact with the contact part 45b of the head pressure arm 45 by the spring 31, and the position of the thermal head 29 at that time becomes the initial position (hereinafter, the position of the thermal head 29 becomes the initial position). (clockwise rotation is 10).

■) Standby position θ by the motor 43 in the direction of the arrow in FIG.

When rotated, the bin 44 comes to the r1 point of the cam trajectory 42a (see FIG. 9, θ=θ). At this time, the head pressure arm 45 and the head arm 28 pulled by the head pressure arm 45 by the spring 31 also rotate about the shift shaft 46 . At this time, rl is set so that the head 29 stops just before the printing paper 1-2 on the platen 1-1. This position is called the standby position. This position is from the printing position, which will be described later, when the thermal head 29 is separated from the printing paper 1-2.
If the printer stops at this point for a certain period of time and a printing command is manually input during that time, printing 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 -θ1.

Therefore, when the thermal head 29 is at the initial position,
When a printing command is input, it does not remain at this position but directly rotates (θ, +02) to the printing position.

If) When printing the first ovicidal character position, as shown in FIG. 6(C), the motor 43 is further rotated by 02 from the initial position in the direction of the arrow (standby position).

At this time, the thermal head 29 is at θ. When rotated, the printing paper 1-2 on the platen 1-1 and the first ribbon 10 come into contact with the platen at an angle of θH (see FIG. 6(C)) (θ1<θ8×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 moves along the cam track 42.
Rotate along a. 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.

At this time, if the rotational speed of the motor 66 is selected so that the ribbon f1 is generated such that the leaf spring-like peeling member can overcome the force F pushing the ribbon, the ribbon will be pushed to the end surface of the thermal head It starts to peel off.

1ii) Second egg-killing position Here, as shown in FIG. 6(D), if the rotation speed of the motor 66 is selected so as to weaken the ribbon tension (fl>f2),
Due to the force of the leaf spring-like peeling member 30 pushing the ribbon, the ribbon is suppressed F at a distance L from the end surface X of the thermal head.
'', it comes into contact with the platen 1-1.

By this operation, the timing at which the ribbon 10 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. Therefore, by controlling the motor 43 and the motor 66 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.

vJ) After printing is completed, the cam 42 is moved by the motor 43 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 -01 rotation 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 is always constant even when rotated up to θ'=03. The ribbon plate 12 does not move.

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 θ7 in FIG. 9 in the opposite direction to that during first ribbon printing. Then, the cam orbit of the cam 42 has a radius r as shown in FIG. 8(A). As it 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 is as shown in FIG. 9(B). It rises from to hl. This movement is transmitted to the arm 27 by the arm guide 24, and the ribbon plate 1
2 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 → θ1 φ θ7 → θ6 θ, → θ2 c3 θ6 → θ5 Moreover, the ribbon tension can also be changed as f, f2.

At this time, the cam 26 connected to the cam 42 also rotates to θ4, but the ribbon 10 does not move because the height of the cam surface 26a is maintained at hl. Therefore, correction printing is performed using the ribbon 16 according to the above 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 post-applicable position.

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. 11 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 a boat, CP
U controls the rotation of the aforementioned motor 43° and the motor 66 that winds up the second ribbon via a boat and a driver. Further, the thermal head 29 is driven by the DATA line and/or voltage control. Also, R for character font
OM (FROM), communication interface, R32
Communication with the outside is possible via the 32C and Centronics interface. In addition, RV is a density setting volume that changes the current, voltage, and time to adjust the print density, which will be described later.
Data C as a parameter for controlling erasure
It is given to PU.

[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 shielding plate 42b.

If YES in S2, the cam 42 is rotated to the right in FIG. 5 in S3. Then, in S4, when the shielding plate 42b is detected by the sensor 33 (OFF), the process proceeds to S5.

Further, when the sensor 33 is OFF in S2, that is, when the sensor 33 is detecting the shielding plate 42b (the sensor 33
(When the shielding plate 42b shields between the light emitting part and the light receiving part)
The process proceeds to S6, and the cam 42 is rotated to the left in FIG. 5, and when the sensor is turned on (S7), that is, the cam is stopped exactly at the position shown in FIG. 5 (S5). Next, at 36, the motor 140 moves the carriage to the left relative to the platen (see FIG. 2). This is because the absolute position of the carriage is determined by turning off the sensor 90 (limit sensor) in S7.

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,
Make sure to remove the sagging. Next, the motor 66 is rotated clockwise to wind the second ribbon 16 to remove slack. This completes the power-on sequence. In order to simplify the explanation, the explanation of the motor as the driving 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, proceed to S3,
It is determined whether the input data is an erase command. If No, the process proceeds to other function processing, but will not be described here. If the input data is an erase command in S3, S4
In step S4, it is determined whether the attached first ribbon 10 is a collector pull ribbon, and if No, step S4 is performed.
Return to l. 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, 8
Proceeding to step 6, it is determined whether the attached ribbon is a ribbon for two-color printing and whether the command is for basic color (black) printing. Yes
If so, the rotational speed of the motor 66 is set to achieve the ribbon tension f2 for two colors and black, and if 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. In order to make the printing routine easier 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 back to a position further back by an acceleration interval from the beginning of the next printing position. Next 32
The dot image for input characters is converted to character font RO.
Read from M (FROM) and work RAM (RA
M).

At S4, make sure that the bottle comes to the r2 position of the cam 42 (6th
Figure (C)) Rotate the cam to the left. 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, S
5, the plate spring-like release member 30 shown in FIG. 6(D)
The rotation speed of the motor 66 is set so that the ribbon tension f2 is such that the ribbon contacts the platen. Also, N in S3
In the case of O, that is, in the case of printing in the auxiliary color (ex red) of the ribbon for one-color printing or the ribbon for two-color printing, the ribbon tension f should be such that the leaf spring-like peeling member 30 separates from the platen. Set the rotation speed of the motor 66.

Next 36. In S7, winding of the first ribbon 10 is started at the rotational speed set in S4 and S5, and movement of the carriage is started, and in S8, after the carriage has finished accelerating, it starts running at a low speed. In S9, a dot image voltage is applied to the thermal head 29 to perform printing. Next, after the application of the predetermined energy is completed (SIO), the information just printed will be
Check whether the above basic color is printed or not. Sl 1)
, if Yes, proceed to S12 and overrun by A. If No in Sll, the process directly proceeds to S13 to decelerate the carriage, and in S14, the carriage is stopped and the winding of the first ribbon 10 is completed. Next, S1
At step 5, 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 816, the carriage is returned to a position indicating the next printing position. mode, set the timer to ONL/ in S17, and set it to 0 in S19.
．． It is determined whether or not the next manual data is available before 5 seconds have elapsed (S18). If YES in S1B, the process advances to S1 to perform the next printing. Also, 31B is No.
.

If the answer is Yes in S19 and there is no next input data within 0.5 seconds after printing, the process advances to S20 and 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.

(Erasing Routine) Next, the erasing routine will be explained. Figure 15-1 shows the
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 interval 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, rotate the cam 42 counterclockwise to the ``1'' position with respect to the pin 44 (standby position in Fig. 8 (B)). Then, use Sll to return the carriage to the position indicating the erased character position. Next, S
12. S13゜0.5 s e c after erasing is completed in S14
In the meantime, it is determined whether or not there is the next input data, and if there is no next input data, the process proceeds to S15 and the cam is moved to the initial position, that is, FIG. 8 (A
) Rotate the cam counterclockwise to the position shown in ) to end the erase routine. Also, if there is the next input data in 313, S
Return to l.

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 the control signal 0.1, 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 polynystil 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 the specific values may vary. However, it is not limited to this.

In FIG. 16, the thermal head heating time 203 (2 ms e in FIG. 16) is determined by the thermal head 29.
The erasing ribbon heated by c) traces a temperature curve shown by curve 201, and further drops to the room temperature level after time 204 has elapsed.

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 Figure 16 as an example, the time for this is approximately 6 hours after heating is completed.
This is when m5ec has passed. This value varies depending on the conditions of the equipment and ribbon used, but it is based on experiments.

This is a value determined in advance by calculation or the like.

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 printing 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 after the time 204 or less.

Next, a case where the leaf spring-like peeling member is not provided will be explained.

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 (Figure 15-1) is that in step So5, it is checked whether the density setting volume Rv is greater than the set value and time T or T2 is set in the timer. In step 22, for example, when the concentration Rv is high, it is T2, and when it is low, it is T2 (T r > 72). In So, at the same time as the heat ends, turn on the timer at 87,
9, the time when the timer value is set at SIO after the carriage stop (in the example in Figure 16, the maximum value is at time 20)
4 is to check whether 6m5ec) has elapsed, and if it has, the ribbon is wound for the first time by one character. The behavior of the erasing ribbon and the image to be erased at that time is described in the 18th section.
This will be explained using figures.

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
remains attached to.

After that, in 810 of FIG. 17, if it is determined that the time set in the timer (for example, T1, T2) has elapsed after the end of the heat, the erasing ribbon 1 is
6 is rolled up by one character toward the arrow 207 side, and as shown in Fig. 18 (
In the state of c), the image to be erased 206 is peeled off from the printing paper 2 while remaining adhered to the erasing ribbon 16 side.

That is, after the time set on the timer has elapsed after the erasing ribbon 16 is heated and the adhesive force with the image to be erased 206 reaches its maximum, the image to be erased 206 is peeled off from the printing paper 2. .

Note that the time T1 or T2 until peeling is time 2 in Fig. 16.
It is not necessary for the time to be longer than 204, and it 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.
Note that the steps after 312 in FIG. 17 are exactly the same as those after SIO in the flowchart shown in FIG. 15-1.

Next, 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 3 of the erasing routine shown in Figure 15-1.
This is a case where steps 1 to S5 are 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.

■ is the traveling speed of the carriage, that is, the thermal head 2
The running speed is 9. As is clear from Figure 20,
Printing paper 1-2 with image 206 to be erased by erasing ribbon 16
Peeling from the eraser ribbon 16 is performed after the erasing ribbon 16 is heated by the heating element 207 and passes a distance at a speed V.

That is, the distance of the erasing ribbon 16 is L (mm).

If the speed is V (mm/5ee), after heating is completed (L
/V) xlooo (msec) = Peeling starts at T. In addition, a value LO (constant value) determined based on the characteristics of the thermal head 9 is determined. Therefore, this T (m
If the speed ■ is set so that the time sec) is greater than the time 204 (Fig. 16),
04) Since the erasing ribbon 205 is peeled off after it has cooled sufficiently, good erasing is achieved as explained in FIG. 16.

Now, considering the recording (printing) side, in recent years, the recording speed has tended to be faster than market demands, 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 50mm/SeC to 150mm/s.
It is e c.

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 must be 1111 tL or more, and conversely, the length of the printing ribbon during recording must be increased. 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 must be set to the above-mentioned value ■, and the value of V must be slower than the carriage traveling speed during printing. (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 carried out 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 5005 in Fig. 19, if the value of the concentration volume is larger than a certain set value, the constant running speed of S4 is set to the first speed, and if it is higher than that, the second speed is set (first speed < second speed ).

The following continues from S6 in FIG. 15-1. Thereby, erasing can be performed reliably according to the density.

Furthermore, by setting the head heat voltage value in memory (work RAM RAM) at Sl, 2 or Sl, 4 in FIG. 19, the heat driving voltage (energy) can be controlled according to the concentration, ensuring erasing. It can be carried out.

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 is performed using the above-mentioned plate spring-like peeling member 30.

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

At 31.2, rotate the cam 42 to the r2 position.

If the density volume is higher than the set value at Sl, 5, the rotation speed of the motor 66 is changed to f2 by the ribbon tension.
Set the rotation speed so that
Set the number of rotations at step 6 to the number of rotations at which the ribbon tension becomes f+. In S8, the carriage is overrun by the distance A to the second member 30, so that the erasing ribbon can be reliably separated 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
v indicates the carriage speed, that is, the speed of the thermal head 29 in the direction of the arrow.

The erasing ribbon 16 is inspected by the second member 30, after being heated by the heating element 207 of the thermal head 29, by peeling off the image to be erased 206 from the printing 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 the above-mentioned peeling conditions (time, speed, lever) may be set to appropriate conditions using any one or a combination thereof.

[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 ℃ is the basic value depending on the ribbon for two-color printing. This is the amount of overrun after printing when color (black) is printed.

FIG. 24 is based on text information (including spaces, etc.) from the text RAM, and the text stores, for example, code/dot information.

As is clear from the figure, (1) in Fig. 24 is a recording example in which one line of recording is performed, and HIJKL-M is changed from black to red within one line.
It shows how the colors are freely changed from red to black to black to - to red.

Figures 24 (2) and (3) are diagrams showing the movement of the head corresponding to one line of printing in Figure 24 (1). Figure 24 (2) shows data being sequentially read from the memory and black Only when the color is red does the process of moving the head in the opposite direction occur. Figure 24 (3) shows Ic
It shows movement for each haracter. That is, the overrun amount k or B is returned for each ICharacter. 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, Fig. 24 (2).

Returning only the last B in (3) 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 S3. Since the printing color is black, drive the motor at 34,
The thermal head 29 and the leaf spring-like peeling member 30 are lowered.

In S5, the carrier drive motor 140 is rotated forward to move the carrier in the printing direction, and in S6, the heating element is energized to perform printing, and the area for one character, that is, the specified amount [A
] is moved (S7), the heating element is no longer energized (S7).
8) Do.

Note that this specified amount [A] may be variable depending on the character.

Next, in S9, the next letter I (red) (Fig. 24 (1)
), the process advances to 810, and since it is a print command, the process advances to 328. Here, since the immediately before is not a space (just before), proceed to T) S32, and since H is printed in black, proceed to S33,
The next printing color is red, so 334. 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 leaf spring-like peeling member 30. Here, the carrier is stopped (S36) and the thermal head is raised (S37). Then, the carrier drive motor is reversed and moved to the printing start position of the next character. That is, it is moved by a specified amount [1] (338), and then,
The carrier is stopped (S39). Then, the thermal head is lowered (S15) to print I (red).

Then, in the same way as the above H (black) printing, S5→S6→S7
...→S8→S9, and from the next print command J (red), sio→S28, and the previous one is 532 because ■ is printed.
, proceed to S40 because ■ (red) is printed in red, and proceed to 35 because the next print color is J (red), and as before, proceed from S5 to S.
6→S7~S8→S9→StO→S28→S32→S4
0, and the next printing color is K (black), so the leaf spring-like peeling member 30 is lowered at 341, and the process returns to S5 to print again, and as before, S5 → S6 → S7 to S8 → S9 → StO →
Proceeds from S28 to S32, and the current print color is K (black), so 3
Proceed to 33, and the next printing color is L (black), so return to 85 and print again, and as before, S5 → S6 → S7 ~ S8 → S9
→SIO, and since the next space command is 311, the carrier is moved by -characters (S12).

Then return to S9 and proceed to S10, and the next print is M (red)
Therefore, proceed to S28.

Here, the immediately preceding space is a space, so the process goes to S29, the print before the space is black (L), so the process goes to 330, the next print color is red (M), so the process goes to 331, and the leaf spring-like peeling member 30
, return to S5, print again, proceed as before in S5 → S6 → S7 ~ S8 → S9, and if there is no next command, proceed from S9 to 316, and then in 317, the current printing color is red. (M) Therefore, proceed to 324, and let the carrier work by the amount of red overrun, that is, the specified amount [B],
Peeling is performed, and the carrier drive motor is stopped in S25. Then raise the thermal head with 326 and S2
At step 7, the carrier drive motor is reversed to move the specified amount [B] and stop the carrier at the next printing position (S22
). Then, 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 that performs 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 timing of peeling off the ink sheet after printing is changed. 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 slack of the sheet is controlled by the movement of the leaf spring-like peeling member 30. This can be done by controlling the 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 prints by heating an ink sheet, the head for printing characters is also used for erasing characters, and furthermore, the head for printing characters is used for erasing all dots in the area of the characters to be erased. By heating the sheet, it has become possible to perform erasing 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. It can be performed.

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 depending on the color to be recorded within one line.

Further, in the device according to the present invention capable of printing in multiple colors by heating an ink sheet, the color can be switched from the first color to the second color or from the second color to the first color according to each color. Therefore, 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 a device that prints by heating an ink sheet, the pressing force of the head on the ink sheet is made variable according to color information when performing multicolor printing, thereby achieving proper printing. It can be carried out.

In addition, by making variable the pressing force of the head when erasing and the pressing force of the head when printing via a collector sheet, proper erasing can be performed.

In addition, depending on recording conditions such as print density, head position control during erasing, carriage movement speed control, erasing sheet winding timing control, or leaf spring-like peeling member 3o is controlled. By variably controlling the energy for control or erasing, or by controlling them in combination, it has become possible to perform erasing extremely efficiently and reliably.

Furthermore, according to the present invention, chromaticity can be changed without stopping the carriage movement when a return, space, or skip occurs in response to a color conversion command.

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 that it can be used 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. It is now possible to use the leaf spring-like peeling member 30 used when printing colors also when erasing characters printed with the ink sheet of the collector.

Moreover, the control of the leaf spring-like peeling member 30 can now be made variable by changing the tension of the 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 that can be equipped with an erasing sheet for erasing printed characters.

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

Further, in the device of the present invention that heats an ink sheet to perform printing, a member for peeling off the ink sheet can be provided on the device main body side, and even if the device 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 drawings]

An explanatory diagram of the cam, Figure 6 is an explanatory diagram of the function of the cam during recording,
Figure 7 is a characteristic graph of the friction clutch for changing the ink sheet tension, Figure 8 is an explanatory diagram of the movement of the cam during erasing, Figure 9 is a diagram showing the distance between the head and the platen, and Figure 10 is a diagram showing the distance between the head and the platen. FIG. 11 is a diagram showing the positional relationship between the platen, carriage, and ribbon, and FIG. 1 is a block diagram of the configuration of the present invention.
FIG. 2 is a diagram showing a power-on sequence, FIG. 13 is a diagram showing a key manual routine, and FIG. 14-1. Figure 14-2 is an explanatory diagram of the printing routine, Figure 15-1,
Fig. 15-2 is an explanatory diagram of the erasing routine, Fig. 16 is a diagram showing the adhesive force between the erasing ribbon and the image to be erased, and the time change of the erasing ribbon temperature at that time, Figs. 17, 19, and 21 are FIG. 18 is a control flowchart for performing reliable erasing. 20 and 22 are diagrams showing the state of peeling by the erasing ribbon 16, FIG. 23 is a diagram showing the relationship between the recorded image and the amount of head movement, and FIGS. 24 (1) and (2). (3) is a diagram showing the recorded image of one line and the movement of the head in relation to each character or before and after that, T; Figure 25 is shown in Figure 24 (2); Flowchart for controlling recording. Number of rotations (A) -f 4 do Fig. 72 5TART @Slide 5WON δ2 Beg y-N' N Yes δ3 86 Achi rotation Force ＾ hill rotation,! ; 4 37 t length - 33 Nty - IZ sensor N retrieval force S5 σ6 motor 4θ removes γ leaf'')' platen 1;
-tznt? o 67FF ')' (?5 Sθ Itta L SθZ Tos9' - Yu66 Motor

Claims (2)

[Claims] (1) In a recording apparatus that records on a recording medium using an ink sheet containing ink, a heating means for heating the sheet, an erasing sheet for peeling recorded information from the recording medium, and the heating The means is used for both a recording operation using the ink sheet and an erasing operation using the erasing sheet, and after applying thermal energy by the heating means, the ink sheet or the erasing sheet and the recorded object A recording device characterized in that the shape of a peeling member is changed in order to control the peeling time until peeling off. (2) The recording device according to claim (1), wherein the peeling member is an elastic member.