JP2673552B2 - Record correcting apparatus and record correcting method - Google Patents

Description

The present invention relates to a recording correction device and a recording correction method capable of erasing an image recorded with a high head pressure.

<Prior Art> Today, various recording methods have been developed as input information output devices, and a typical example thereof is a thermal transfer recording method.

In this recording method, generally, an ink ribbon coated with a thermal transfer ink containing wax as a main component and a recording paper are pressed against a platen by a recording head, and in this state, the recording head is selectively heated to apply the ink ribbon. The heat transferable ink is melted in an image pattern and transferred and recorded on a recording paper.

Since this recording device is small and lightweight and has excellent low noise characteristics, it is widely used as an output device for word processors, electronic typewriters, and the like.

<Problems to be Solved by the Invention> In the above-mentioned thermal transfer recording method, a difference occurs in image quality depending on the smoothness of the recording paper, and particularly when a recording paper having a low smoothness such as rough paper is used, the transfer is performed. The edges of the image are hard to be sharp.

Therefore, during normal printing, the pressing force of the printing head is set to about 500 gf / cm or less. However, when printing on rough paper, it is considered that the head pressure is increased. However, if the head pressure is increased, the molten ink may spread due to the high head pressure and may appear as bleeding of a recorded image, or the molten ink may penetrate deeply into the paper fibers of the recording paper, resulting in insufficient recording density. There were problems such as

<Means for Solving the Problems> Therefore, in order to record a clear image on rough paper, the applicant of the present invention uses, for example, a thermal transfer medium coated with an ink containing a resin or the like as a so-called rough paper-compatible ink as a main component. Have proposed an apparatus and a recording method for pressing this thermal transfer medium with a recording head at a high pressure of 800 gf / cm or more (Japanese Patent Application No. 63-
No. 88213).

According to the above technique, even when an ink having a strong film strength and easy to stretch, such as an ink containing a resin as a main component, is used,
Since the head pressure is high, for example, fibers of recording paper as a recording medium are elastically deformed, and high-viscosity ink is familiar along the paper fibers and adheres in a wide area. Therefore, the spread of ink becomes small, and an image with few image defects can be recorded. Since this image is strongly adhered to the recording medium, it is hard to be peeled off by rubbing or the like.

Therefore, when the image is stripped and corrected, it is difficult to completely strip the image by the conventional correction method. Therefore, the present invention provides a recording correction device and a recording correction method capable of completely stripping and correcting an image recorded by increasing the head pressure.

The means for that is to selectively heat the thermal transfer medium by the recording head to correct an image transferred and recorded on the recording medium, and the recording head transfers the thermal transfer medium to the recording medium at a head pressure of 800 gf / cm or more. In correcting the recorded image recorded by pressing at 3500 gf / cm or less, the recording head presses the correction medium on the recording medium at a pressure substantially the same as the head pressure at the time of recording, depending on the head pressure. It is characterized in that the correction medium is wound up by the winding force and the recorded image is corrected.

<Operation> When recording is performed with a high head pressure as described above, for example, ink containing a resin as a main component enters the minute concave portion of the recording medium, but at the time of correction, with the same high head pressure as that at the time of recording. When the correction medium is pressed against the recording medium and the correction medium is wound by the winding force according to the head pressure, the correction medium adheres strongly to the ink image, and even the ink that has entered the minute recesses can be peeled off. It can be done.

<Embodiment> An embodiment in which the above means is applied to a serial type recording correction system will be described with reference to the drawings.

(First embodiment)

FIG. 1 shows both a thermal transfer medium and a correction medium,
FIG. 2 is a perspective explanatory view of an apparatus that uses a so-called self-correctable ribbon and can perform both thermal transfer recording and recording correction with the same ribbon. FIG. 2 is a sectional explanatory view of the self-correctable ribbon, FIG. 3 (A), FIG. 4B is an explanatory diagram of the recording operation, and FIG. 4 is an explanatory diagram of the correction operation.

First, a schematic configuration of the entire apparatus will be described. A self-correctable ribbon 2 which also serves as a transfer recording medium and a correction medium is housed in a cassette 1, and the cassette 1 is removably loaded in a carriage 3. The carriage 3 is reciprocally movable along a carriage shaft 5 by a drive mechanism 4. When the carriage 3 moves in the direction of arrow A in FIG. 1, the ribbon 2 is unwound by the transport roller pair 6 that constitutes the transport means for the ribbon 2, and the recording head 7 heats the ribbon 2 so that the back surface of the platen is covered by the platen. The ink is transferred to the recording medium 9 (high-quality paper, rough paper, plastic sheet, or the like, hereinafter referred to as “recording paper”) 9 supported by 8, or the ink transferred to the recording paper 9 is peeled off and corrected. Further, the recording paper 9 is constructed so as to be intermittently conveyed line by line in the direction of arrow B in FIG.

 Next, the configuration of each section will be described in detail.

The cassette 1 is composed of a lower case 1a and an upper cover 1b, and a self-collectable ribbon 2 is wound around a supply reel 1c of the cassette 1 inside the lower case 1a. It is guided so as to be exposed to the outside at the opening, and is wound around the take-up reel 1d via the pair of conveying rollers 6.

The self-collectable ribbon 2 is formed by applying heat transferable (heat-melting, heat-softening, heat-sublimating, etc.) ink and an adhesive layer in layers on a support. The heat-transferable ink is preferably a resin. Ink containing ink, particularly ink containing ionomer resin is used. The ionomer resin is a hydrocarbon main chain having a side chain of a carboxyl group partially or completely neutralized with a metal ion or a quaternary ammonium ion. Among the ionomer resins, for example, α-olefins such as ethylene and propylene, and α, β-
A copolymer of unsaturated carboxylic acid neutralized with metal ions is used. The content of the ionomer resin in the thermal transfer ink component is preferably 5 to 70%.

In this embodiment, the self-collectable ribbon 2 is the second
As shown in the figure, the first ink layer 2b ₁ on the support 2a in order,
The second ink layer 2b ₂ , the third ink layer 2b ₃ , and the fourth ink layer 2b ₄ are formed, and the applicant of the present application filed Japanese Patent Application No. 62-29.
The one described in No. 9046 (filed on November 26, 1987) was used.

Specifically, the glass transition temperature is 0 ° C, the weight average molecular weight is 7790.
00 vinyl acetate-ethylene copolymer resin (ethylene containing 20
%) Emulsion (nonvolatile content 40%) using 6 μm polyethylene terephthalate film support 2a
The first ink layer 2b ₁ having a thickness of 2.0 μm is obtained by applying the solution using an applicator and drying it for 1 minute in hot air drying at 80 ° C.

Next, the above-mentioned first ink layer 2b ₁ was twice diluted with an aqueous dispersion of the following formulation 1 and applied using an applicator, and the temperature was adjusted to 60 ° C.
Drying for 1 minute in hot air drying, thickness 1.5μ
m second ink layer 2b ₂ is formed. This second ink layer 2b ₂
Has a melting point of 80 ° C and a melt viscosity at 150 ° C of 20 cps.

The formulations 2 and 3 are uniformly mixed with a propeller stirrer to obtain coating liquids 2 and 3. The coating liquid 2 is applied onto the second ink layer 2b ₂ using an applicator. 60 ℃ 1
After drying for 1 minute with hot air, the third ink layer 2b ₃ with a thickness of 1.5μm
To form The coating liquid 3 is applied thereon by using an applicator, and dried by hot air at 60 ° C. for 1 minute to form a fourth ink layer 2b ₄ having a layer thickness of 1.7 μm.

The first ink layer 2b ₁ is a support 2a even during recording by heating.
Without breaking even at the interface with or inside
It firmly adheres to the support 2a. The second ink layer 2b ₂ is divided at the interface with the first ink layer 2b ₁ or inside the second ink layer 2b ₂ during recording by heating, and the third ink layer 2b ₃
The following facilitates transfer to the recording paper 9. However, the non-heated part of the second ink layer 2b ₂ is the first ink layer 2b ₁ and the third ink layer 2b.
It adheres firmly to the third ink layer ₃ and prevents the third ink layer 2b _{3 and} below from being transferred to the recording paper 9. The third ink layer 2b ₃ has a coloring function, a film strength immediately after the application of heat, and a function of controlling the temporal change of the film strength thereafter. The fourth ink layer 2b ₄ has a function of controlling the adhesiveness of the heat applying portion to the recording paper 9 and the time-dependent change of the film strength of the film strength after applying the heat similarly to the third ink layer 2b ₃ .

When the self-correctable ribbon 2 configured as described above is separated from the recording paper 9 immediately after being heated by the recording head 7, the heated ink is transferred to the recording paper 9 to enable recording. Further, the cohesive force of the ink, which is delayed after being heated by the recording head 7 and peeled off from the recording paper 9, is recovered, and the image can be corrected by lift-off.

Next, the carriage 3 is connected to the belt 4c which is stretched between the pulleys 4a and 4b, and when the carriage motor 4b connected to the pulley 4a is driven, the carriage 3 is guided by the carriage shaft 5 to reciprocate. Is configured.

When the carriage 3 moves in the direction of arrow A in FIG. 3 (B), the conveying roller pair 6 conveys the ribbon 2 in the direction of arrow C by driving a motor (not shown), and the recording head 7 records the ribbon 2 and the recording. Platen 8 through paper 9
The ribbon 2 is sequentially fed from the supply reel 1c by sliding while pressing the ribbon.

Further, a winding motor 3a is provided at a predetermined position of the carriage 3.
And a take-up shaft 3c connected via a friction clutch 3b to engage the take-up reel 1d when the cassette 1 is loaded on the carriage 3 and to perform recording (when the carriage 3
(Movement in the direction of arrow D) only in the direction of arrow D. Thus, the ribbon 2 fed from the supply reel 1c is taken up by the take-up reel 1d.

In addition, an opening 3d is formed at a position corresponding to the opening when the cassette 1 is loaded in the front portion of the carriage 3, and the recording head 7 and the correction roller are formed in the opening 3d.
13 are slidably mounted so as to move up and down in the directions of arrows E and F in FIG. 1, respectively.

The recording head 7 is provided with a glaze layer (not shown) on a head substrate 7a, and a plurality of heating elements 7b that generate electricity by heating according to an image signal are arranged in a line on the glaze layer. Further, the heating element rows are arranged near the downstream edge of the head substrate 7a in the ribbon feeding direction (so-called edge head).
This is because when recording, the ribbon 2 heated by the heating element 7b is peeled off from the recording paper 9 within a short time of about several ms after heating to improve ink shortage.

The distance Δx from the end of the heating element 7b to the end of the head substrate 7a is preferably set to about 250 μm or less, more preferably 150 μm or less.

In this embodiment, the recording head 7 has a glaze layer thickness of 44 μm, a heating element array having a dot density of 240 dots / inch and a length of 4.65 mm, and a distance Δx from the substrate edge to the heating element array.
The one having a size of 122 μm is used. The length of the recording head 7 pressing the platen 8 is 6 mm.

At the time of recording, the recording head 7 is configured to head down by a pressing means 10 to press the ribbon 2 and the recording paper 9 against each other and press the platen 8 at a set pressure.

The platen 8 pressed by the recording head 7 is formed in a flat plate shape. In the present embodiment, a hard rubber having a hardness of 73 degrees is formed in a flat plate shape having a width of 6 mm, and this is mounted on a platen holder 8a. .

Next, as shown in FIGS. 1 and 3, the structure of the pressing means 10 is such that a bent head arm 10a is rotatably mounted on a bent portion by a shaft 10b, and one end 10a of the head arm 10a. _The recording head 7 is supported by 1 and a head arm 10
tension spring between the other end 10a _{2 of a} and the pressing arm 10c
10d is installed.

Further, one end of the pressing arm 10c is rotatably mounted on the shaft 10b, and the other end is a tension spring 10f.
, So as to be pressed against the outer periphery of the cam 10e.

Accordingly, when the cam 10e is rotated, FIG.
As shown in (B), the recording head 7 moves down and up. When the head is lowered, the spring 10d is pulled, and the recording head 7 presses the platen 8 with a predetermined pressure. Head pressure at this time is 800 gf / cm or more
The range is preferably set to 3500 gf / cm or less, more preferably 1100 gf / cm or more and 2500 gf / cm or less, and further preferably 1600 gf / cm or more and 2500 gf / cm or less.

Next, the correction roller 13 is provided at a position of a distance of 3 mm from the substrate end of the recording head 7 to the downstream side in the feeding direction of the ribbon 2, and a pressing means for moving the recording head 7 up and down.
The correction roller 13 is configured to roll up and roll down in the direction of arrow F in FIG. 1 by the same mechanism (not shown) as that of 10.

The correction roller 13 rolls down during image correction to press the ribbon 2 against the recording paper 9 and delay the time when the ribbon 2 heated by the recording head 7 is separated from the recording paper 9. Therefore, at the time of image recording, as shown in FIG. 3 (B), the correction roller 13 is in a roller-up state and is separated from the ribbon 2.

The ribbon 2 is configured so that the tension on the downstream side of the correction roller 13 in the feeding direction of the ribbon 2, that is, the tension on the winding side (hereinafter referred to as “front tension”) can be changed by the tension applying means 11. The tension applying means 11 has a structure in which a tension arm 11a is rotatably attached by a shaft 11b, and a moving roller 11 is provided at one end thereof.
c is provided, and a tension spring 11d is attached to the other end. Further, the ribbon 2 is guided by the guide roller 12 provided on the lower case 1a and the moving roller 11c of the tension arm 11a, and reaches the take-up reel 1d via the pair of conveying rollers 6.

Therefore, the ribbon 2 is pulled upward in FIGS. 3A and 3B by the tensile force of the spring 11d, and a front tension is applied.

Further, a magnet 11e is attached to the tension arm 11a, and a Hall element 11f is attached to the lower case 1a near the magnet 11e. Thereby, the distance between the magnet 11e and the Hall element 11f, that is, the inclination of the tension arm 11a is detected, and the position of the tension arm 11a is controlled to be constant by controlling the rotation speed of the conveying roller pair 6 during recording. The ribbon 2 is configured to be given a predetermined front tension so that the ribbon 2 can be accurately separated from the recording paper 9.

Next, a method for recording and correcting an image by using the apparatus having the above-mentioned structure will be described with reference to the flowchart of FIG.

Steps S1 to S8 in the flowchart
Is a recording operation, and steps S9 to S20 are correction operations.

First, the case of recording will be described. When recording data is input, the recording head 7 is moved down and the platen 8 is moved from 800 gf / cm to 3500 gf via the ribbon 2 and the recording paper 9.
Pressing with a head pressure of / cm, the winding motor 3a and the carriage motor 4d are driven to move the carriage 3 in the direction of arrow A in FIG. 3 (B), and the ribbon 2 is sequentially fed out in the direction of arrow C. In synchronization with this, the recording head 7 is caused to generate heat in accordance with the image signal, and this heat melts the thermal transfer ink and bonds it to the recording paper 9.

The melted ink has a high viscosity because it contains a resin as a main component, but since the head pressure is as high as 800 gf / cm to 3500 gf / cm, the fibers of the recording paper 9 are elastically deformed, and the fibers along the fibers have a high viscosity. The viscous molten ink becomes familiar and adheres with a large contact area. Therefore, when the ribbon 2 is peeled from the recording paper 9,
When the melted ink and the non-melted ink break, the length of the melted ink (a starch syrup-like extension) decreases.
For this reason, transfer defects are hardly generated at the image edge portion, and a high-quality image with sharp image edges can be obtained.

In addition, as described above, recording can be performed with a relatively low thermal energy by increasing the head pressure for recording.
Therefore, the molten ink is less likely to penetrate the recording paper 9, and the correction is easy.

If the head pressure is excessively increased (above the set head pressure), the recording paper 9 will be damaged and the transfer ink will penetrate deep into the fibers of the recording paper 9 and the image density will decrease, which is not preferable.

Described next is the case of image correction. When erasing data is input, the recording head 7 is moved down, the correction roller 13 is moved down, and the winding motor 3a and the carriage motor 4d are driven to move the carriage 3 to the fourth position.
As shown in the figure, the vehicle travels in the direction of arrow A. At this time, the head pressure is in the range of 800 gf / cm to 3500 gf / cm, which is substantially the same as that at the time of recording, and the ribbon 2 and the recording paper 9 are fixed to the platen 8 by the pressure.
Press

When the recording head 7 reaches the position of the corrected image 14, the recording head 7 selectively generates heat to heat the ribbon 2 superposed on the corrected image 14 and bond the corrected image 14 to the ribbon 2.
After being heated by the recording head 7, the ribbon 2 is in close contact with the recording paper 9 until reaching the correction roller 13, and the ink layer of the ribbon 2 recovers the cohesive force during that time. Therefore, the ribbon 2
When peeled off from the recording paper 9 at the position of the correction roller 13, the corrected image 14 is peeled off from the recording paper 9 while being adhered to the ribbon 2.

The corrected image 14 is not permeated into the recording paper 9 because it is pressed against the recording paper 9 with a high head pressure at the time of recording, but has entered the concave portion of the paper fiber. Therefore, at the time of correction, the ribbon 2 is attached to the recording paper 9 with the same high head pressure as that at the time of recording.
By pressing against, the paper fibers of the recording paper 9 are elastically deformed in the same manner as during recording, the transfer ink that has entered the fiber recesses is adhered to the ribbon 2, and is peeled off from the recording paper 9.

If the head pressure at the time of correction is significantly smaller than that at the time of recording, the elastic deformation of the recording paper fibers due to the head pressure is different from that at the time of recording, and the transfer ink that has entered the fiber recesses cannot be completely separated. On the contrary, if the head pressure is significantly higher than that at the time of recording, a part of the transfer ink is pushed deep into the concave portion of the paper fiber by the head pressure. Therefore, in image correction, it is preferable to press the ribbon 2 against the recording paper 9 with substantially the same head pressure as during recording.

〔Experimental result〕

Next, the results of an experiment in which thermal transfer recording was performed using the apparatus of the first embodiment described above while changing the head pressure, and the recorded image was corrected will be described.

 First, the result when recording is shown.

The head pressure is divided into the following three stages on the following three types of recording paper 9 and recording is performed with a common test pattern. At that time, (1) the sharpness of the edge portion in the transferred image,
(2) Length of ink extension, (3) Ink density, (4)
Each of the recording papers was examined for damage.

(1) Sharpness of Edges in Transfer Image The results of subjective evaluation of the sharpness of the edges of the transfer image when recorded on the bond paper A at the respective head pressures are as shown in FIG. there were. The evaluation shown in FIG. 6 was performed when the head pressure was 1167 gf / cm (700 gf), and the evaluation was 4, when the head pressure was 2500 gf / cm (1500 gf).

As is clear from FIG. 6, the sharpness of the edge portion of the image sharply improved from the head pressure of around 833 gf / cm (500 gf), and the image quality improved remarkably near 1167 gf / cm (700 gf). The image quality was further improved near 1667 gf / cm (1000 gf). The image quality did not change much even when the head pressure was further increased, and the improvement of the image quality reached a saturation range around 2500 gf / cm (1500 gf).

 The evaluation was common to other recording papers.

(2) Length of ink extension It is considered that the sharpness of the edge portion of the transferred image is greatly affected by the extension of the molten ink. Therefore, with respect to the bond paper A, the extension length of the ink with respect to the head pressure (the extension length in a starch syrup shape at the moment when the molten ink breaks from the non-melted ink) was observed by a high-speed video. The result was as shown in FIG.

As is clear from FIGS. 6 and 7, there is a correlation between the length of the ink spread and the sharpness of the image edge portion. When the ink spread is long, the sharpness becomes low and the image quality becomes low. On the contrary, when the ink spread is short, the sharpness is high and the image quality is improved.

The length of ink extension slightly varied depending on the smoothness of the recording paper, but the tendency with respect to the head pressure was common to all three types of recording paper.

(3) Ink Density Recording was performed on the bond paper A with the respective head pressures, and the subjective evaluation of the ink density of the transferred image was as shown in FIG.

The evaluation in Fig. 8 shows that the head pressure is 1167gf / cm (700gf).
The evaluation was made as 4.

As is clear from FIG. 8, the head pressure is 2500 gf / cm.
Above (1500 gf), paper fibers appeared on the surface and the apparent ink density decreased.

(4) Damage to recording paper When recording was performed on each recording paper with each head pressure and it was checked whether each recording paper was scratched or not,
No damage was observed on each recording paper up to 2500 gf / cm (1500 gf).

Even when the head pressure was 3333 gf / cm (2000 gf), no damage was observed in the bond papers A and B, but slight deterioration was observed in the embossed paper.

Further increase the head pressure to 3833gf / cm (2300gf),
Degradation was observed for each recording paper.

(5) Comprehensive evaluation The above evaluations (1) to (4) can be evaluated as shown in FIG.

As is clear from FIG. 9, when the head pressure is set to 800 gf / cm or more and 3500 gf / cm or less for the heating element array, a good transfer image can be obtained even on recording paper with low surface smoothness. I understand.

Further, it can be seen that when the head pressure is set in the range of 1100 gf / cm or more and 2500 gf / cm or less, a considerably good transferred image can be obtained including the point of image density.

Further, it is understood that the best transfer image can be obtained when the head pressure is set to 1600 gf / cm or more and 2500 gf / cm or less.

Next, the result when the transfer image recorded as described above is corrected is shown.

Using the above-described apparatus, recording is performed on the following two types of recording paper with a common test pattern by dividing the head pressure so that a good transfer image can be obtained in the range of the high head pressure described above into the following four stages. The erasability of each transferred image was verified by changing the head pressure.

The result was as shown in FIG.

(1) Graph of FIG. 10 (A) FIG. 10 (A) shows the head pressure 11 against the typewriter paper.
In recording at 67 gf / cm (700 gf), the head pressure at the time of correction was changed as shown in the plot, and its erasability was subjectively evaluated.

In the above evaluation, the head pressure at the time of correction was 833 gf / cm (500 g
f) is 3 and 1167gf / cm (700gf) is 4
Went as.

(2) Graph of FIG. 10 (B) In FIG. 10 (B), the head pressure at the time of correction is changed as shown in the plot when recording with the head pressure of 1667 gf / cm (1000 gf) on the typewriter paper. Then, the erasability is subjectively evaluated.

The erasability was evaluated based on the recording and erasability evaluation at a head pressure of 1167 gf / cm (700 gf).

(3) Graph of FIG. 10 (C) FIG. 10 (C) shows a head pressure of 25 against the typewriter paper.
In recording at 00 gf / cm (1500 gf), the head pressure at the time of correction was changed as shown in the plot, and its erasability was subjectively evaluated.

 Evaluation criteria are the same as in the case of FIG. 10 (8).

(4) Graph of FIG. 10 (D) FIG. 10 (D) shows the head pressure 33 against the typewriter paper.
In recording at 33 gf / cm (2000 gf), the head pressure at the time of correction was changed as shown in the plot, and its erasability was subjectively evaluated.

The evaluation criteria in this case are the same as in the case of FIG. 10 (B).

As is clear from FIGS. 10 (A) to 10 (D), the erasability is best when the head pressure at the time of correction is equal to the head pressure at the time of recording, and about 90% to 120% of the head pressure at the time of recording. In the range of%, almost good erasability was obtained. Further, the above tendency was also noticeable in bond paper.

In the present embodiment, as described above, the head pressure is set to a high value within a certain range and the thermal transfer ink containing resin as a main component is transferred and recorded, so that a good transfer image is obtained even on a recording sheet having a low smoothness. In addition, by making the head pressure at the time of correction substantially equal to the head pressure at the time of recording, the transfer image can be corrected well.

[Other embodiments]

In the above-described embodiment, the self-collectable ribbon 2 that serves both as a thermal transfer medium and a correction medium is used, and an example in which recording and correction are performed by the same ribbon is shown. However, a recording-dedicated ribbon and a correction-dedicated ribbon are separately used. You may do it.

As a ribbon for modification, for example, Japanese Patent Application No. 62-146380 (filed on June 12, 1987) previously filed by the applicant.
You may use the ribbon shown in. Specifically, the thickness is 6μ
A first layer and a second layer made of the following components are formed on a support made of a polyethylene terephthalate film of m.

The thermal transfer ink used for recording is preferably an ink containing a resin as a main component, but the resin component of this ink is not limited to those in the above-described examples, and examples thereof include an acrylic resin and a low molecular weight polyester resin. , Urethane resin, styrene acrylic resin, polyamide resin and the like can also be preferably used.

<Advantages of the Invention> As described above, the present invention corrects an image recorded with a high head pressure set in a certain range with substantially the same head pressure as that at the time of recording, so that the ink that has entered the minute concave portion of the recording medium Can be removed, and good correction can be performed.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view of a thermal transfer recording and recording correction apparatus according to an embodiment of the present invention, FIG. 2 is an explanatory view of a ribbon structure, and FIGS. 3A and 3B are explanatory views of a recording operation. FIG. 4 is an explanatory view of the correction operation, FIG. 5 is a flowchart for driving the apparatus, FIG. 6 is a graph showing the evaluation of the sharpness of the edge portion of the transferred image with respect to the head pressure, and FIG. 7 is a graph showing the ink spread. , FIG. 8 is a graph showing the ink density, FIG. 9 is a graph showing the total evaluation of the transferred image with respect to the head pressure, and FIG.
FIGS. 9A to 9D are graphs showing the erasability with respect to the head pressure in image correction. 1 is a cassette, 1a is a lower case, 1b is an upper cover, 1c is a supply reel, 1d is a take-up reel, 2 is a ribbon, 3 is a carriage, 3a is a take-up motor, 3b is a friction clutch, 3c
Is a winding shaft, 4 is a driving mechanism, 4a and 4b are pulleys, 4c is a belt, 4d is a carriage motor, 5 is a carriage shaft, 6 is a conveyance roller pair, 7 is a recording head, 7a is a substrate, 7b is a heating element, 8 is a platen, 8a is a platen holder, 9 is recording paper, 10 is pressing means, 10a is a head arm, 10b is a shaft, and 10c.
Is a pressing arm, 10d and 10f are springs, 10e is a cam, 11 is a tension applying means, 11a is a tension arm, 11b is a shaft, 11c is a moving roller, 11d is a spring, 11e is a magnet, 11f is a Hall element, and 12 is a guide. Roller 13 is a correction roller.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Tadashi Yamamoto 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Hitoshi Kishino 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Yasuyuki Tamura 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Nobuyuki Kuwahara 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. ( 56) References JP 62-87366 (JP, A) JP 62-169684 (JP, A) JP 58-53455 (JP, A) JP 59-129170 (JP, A) JP JP-A-63-134289 (JP, A) JP-A-1-249483 (JP, A) JP-A-62-257875 (JP, A)

Claims (5)

(57) [Claims] 1. A recording correction device for pressing a correction medium against a recording image by a recording head and heating the recording medium to erase the recording image, wherein the recording head generates heat according to an image signal, and the recording head corrects the recording medium. A platen for pressing a medium and a recording medium on which an image is recorded, a pressing unit for pressing the recording head with the head pressure of 800 gf / cm or more and 3500 fg / cm or less, and the recording correction. A winding means for supplying a winding force for winding the medium to the correction medium, and an adjusting means for adjusting the winding force according to the pressure of the recording head by the pressing means, A recording correction device, wherein the correction medium is wound by the winding force according to a recording head pressing force. 2. A recording correction method for correcting an image transferred and recorded on a recording medium by selectively heating the thermal transfer medium by the recording head, wherein the recording head presses the thermal transfer medium onto the recording medium. 80
When correcting the recording image recorded by pressing at 0 gf / cm or more and 3500 gf / cm or less, the recording head presses the correction medium on the recording medium at substantially the same pressure as the recording head pressure, and the head A recording correction method characterized in that a recording image is corrected by winding up the correction medium with a winding force according to pressure. 3. A recording correction method for selectively heating a thermal transfer medium by a recording head to correct an image transferred and recorded on a recording medium, wherein the recording head presses the thermal transfer medium onto the recording medium. 11
When correcting the recording image recorded by pressing at 00 gf / cm or more and 2500 gf / cm or less, the recording head presses the correction medium on the recording medium at substantially the same pressure as the recording head pressure, and the head A recording correction method characterized in that a recording image is corrected by winding up the correction medium with a winding force according to pressure. 4. A recording correction method for selectively heating a thermal transfer medium by a recording head to correct an image transferred and recorded on a recording medium, wherein the recording head presses the thermal transfer medium onto the recording medium. 16
When correcting the recording image recorded by pressing at 00 gf / cm or more and 2500 gf / cm or less, the recording head presses the correction medium on the recording medium at substantially the same pressure as the recording head pressure, and the head A recording correction method characterized in that a recording image is corrected by winding up the correction medium with a winding force according to pressure. 5. The recording according to claim 2, wherein an image recorded by using a thermal transfer ink containing a resin as the thermal transfer medium is erased. How to fix.