JPH032074A - Energization transfer type recorder and resistor sheet - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a current transfer type recording device that generates heat in a resistor sheet by applying electricity and performs recording using the heat, and a resistor sheet used therein.

BACKGROUND OF THE INVENTION In recent years, high-speed current transfer type recording apparatuses have been put into practical use by taking advantage of the great advantage of the current transfer type recording system in that the recording node itself does not generate heat and the resistor sheet is the heating element.

The operation of a conventional electrical transfer type recording apparatus will be described below with reference to the drawings.

First of all, FIG. 5 is a schematic configuration diagram of a conventional electrical transfer type recording device.
FIG. 6 shows an enlarged detailed view of part A in FIG.
In its operation, a pulse signal is selectively sent to the recording head 1 that performs recording, and at the same time, current flows through the resistor sheet 2 to generate Joule heat, which melts the thermofusible ink 13. Recording is performed by transferring the image onto the recording paper 5 held on the platen 6.

The ink ribbon 4 used for energization recording is wound up and collected. Normally, the above operation is performed using an ink ribbon 4 that is integrated with a resistor sheet 2 that generates Joule heat due to the current supplied from the recording head and a heat-melting ink 13 that melts due to the generated Joule heat. . Here, the ink ribbon 4 cannot be used again for current recording because the ink has fallen out of the part of the ink ribbon 4 that has been used for current recording. Therefore, when carrying out energization recording, it is necessary to always use an unused portion of the ink ribbon 4, which results in very high running costs (and thus is not economical).

As an example of the above-mentioned improvements, the ink ribbon can be configured to be usable many times by being equipped with ink that can be used many times to perform energization recording many times at the same location on the ink ribbon, and the resistor sheet and ink in the ink ribbon can be used many times. In some cases, the resistor sheet is separated and supplied separately, and only the resistor sheet is used many times, or the relative movement speed between the recording head and the resistor sheet during recording is changed, that is, the winding speed of the resistor sheet is higher than usual. A configuration has been proposed in which the amount of resistor sheet used is reduced by slowing down the resistance.

Further, FIG. 7 is a schematic diagram of the contact surface of the recording head shown in FIG. 5, which contacts the resistor sheet. In FIG. 7, first, the recording electrode 11 to be driven according to the pattern to be recorded is selected, and the selected recording electrode 11 and the return electrode 11 are connected to each other.
Q recording is performed by applying a voltage between 12 and energizing the resistor sheet 2. In such a configuration, in order to perform high-speed recording, all the recording electrodes 11 to be driven must
Ideally, the dots should be simultaneously conducted and recorded sequentially, but if the drive pattern of the recording electrode changes depending on the recording pattern, the size and size of the recorded dots will be affected by the nearby drive bridges. There were problems such as changes in shape, and it was difficult to drive all of them simultaneously for recording. Therefore, a method is generally used in which the electrodes are driven in several blocks in time division.

Problems to be Solved by the Invention However, with the above configuration, if the same part of the resistor sheet is used many times while moving the recording head and the lever sheet relative to each other by energizing and recording, the resistor sheet may become damaged due to the multiple uses. The sheet resistance value of the resistor sheet (including the contact resistance between the recording head and the resistor sheet) changes due to deformation of the resistor sheet such as unevenness or wrinkles on the surface of the resistor sheet. There is a problem in that the heat energy generated in the body sheet is not constant, which in turn causes variations in the amount of melted ink, making it impossible to record high quality images.It is necessary to maintain good print quality and use the resistor sheet many times. This makes it difficult to reduce running costs. In addition, in order to achieve higher image quality due to faster speeds, increasing the number of electrodes that are driven simultaneously in order to perform high-speed recording (approximately driving all of them simultaneously) will make it more susceptible to the effects of nearby drive electrodes, resulting in poor recording quality. The size, shape, etc. of the dots will change, which will have a negative effect on the print quality. Therefore, if the electrodes are not driven in time-divided blocks, the print quality will deteriorate, and therefore, speeding up cannot be achieved. There were some issues such as not having any.

In view of the above-mentioned problems, the present invention is an electrical transfer type recording bag that can maintain good print quality even when used multiple times by applying electrical current to the same location on a resistor sheet, and increasing the number of electrodes that can be driven simultaneously. The present invention also provides a resistor sheet that is less susceptible to the effects of nearby drive electrodes.

One Means for Solving the Problems In order to solve the above problems, the current transfer type recording apparatus of the present invention is provided with a heating/pressing means for shaping the resistor sheet.

Further, in the current transfer type recording device of the present invention, recording is performed on the recording medium in a state where the recording head and the resistor sheet do not move relative to each other, and after the recording head and the recording medium have moved relative to each other by a predetermined amount, recording is not performed. The recording head and the resistor sheet are configured to move relative to each other by a predetermined amount.

Furthermore, the energization transfer type recording apparatus of the present invention is configured to recognize the number of times the same portion of the resistor sheet is used, and control the conditions for energizing the resistor sheet in accordance with the recognition result.

Further, the resistor sheet of the present invention has sheet resistance anisotropy in the plane direction.

Effects of the present invention With the above-described configuration, the resistor sheet is used many times and the deformed resistor sheet is shaped by heating and pressurizing means during the interval during which the energization is recorded, thereby forming the resistor sheet. The resistance value can be restored and the resistor sheet can be used many times.

Further, according to the above-described structure, the present invention performs recording on a recording medium in a state where the recording head and the resistor sheet do not move relative to each other when carrying out current recording using a resistor sheet, and the recording head and the recording medium move a predetermined distance. After the relative movement, when recording is not being performed, the RAD and the resistor sheet are moved relative to each other by a predetermined amount, thereby making it possible to stabilize the sheet resistance value of the resistor sheet during recording and also to improve the use of the resistor sheet. The amount can be reduced, and wear of the recording head is less likely to occur.

Furthermore, with the above-described configuration, the present invention recognizes the number of times the same portion of the resistor sheet is used when the resistor sheet is used many times and records the current flow. ! By controlling the energization conditions such as voltage, current, and pulse width to the resistor sheet according to the recognition results, high-quality recorded images are always maintained even if the sheet resistance value of the resistor sheet fluctuates as the sheet is used several times. can be obtained.

Further, according to the present invention, with the above-described structure, the sheet resistance value of the resistor sheet has anisotropy in the plane direction, so that even if the number of electrodes driven simultaneously in the recording head is increased (approaching simultaneous driving of all electrodes), It is less affected by the drive electrode and can maintain good print quality.

Example Below, regarding an electric transfer type recording device according to an example of the present invention,
This will be explained with reference to the drawings.

FIG. 1 shows a schematic diagram of a current transfer type recording apparatus according to a first embodiment of the present invention.

In FIG. 1, 1 is a recording head, 2 is a resistor sheet,
3 is an ink sheet, 5 is a recording paper, 6 is a platen, 7 is a heat roller, 15 is a guide roller, and the recording head 1 is a plate-shaped electrode base, a plurality of recording needles, and boron tinide (electrode support material). It consists of boron nitride). The resistor sheet 2 has a structure in which conductive carbon is dispersed in a highly heat-resistant resin such as polyamide or polycarbonate.
It is supplied between the recording head 1 and the recording paper 5. The ink sheet 3 is composed of a heat-melting ink 13 and a base film 14, and is supplied between the resistor sheet 2 and the recording paper 5. Further, the resistor sheet 2 and the ink sheet 3 are supplied and collected individually and independently. The heat roller 7 heats and presses the resistor sheet 2 which has been electrically heated by the recording head 1.

Regarding the current transfer type recording device configured as above,
The operation will be explained below using FIG.

In the first embodiment of the present invention, with the above-described configuration, first, a pulse signal is selectively applied to the recording head 1 while the resistor sheet 2 and the ink sheet 3 are pressed onto the recording paper 5 by the recording head 1. When the pulse signal is sent, a current flows through the resistor sheet 2 in response to the pulse signal, generating Joule heat, which melts the hot-melt ink 13 on the ink sheet 3 and holds it on the platen 6. The image is transferred onto the recording paper 5. On the other hand, the resistor sheet 2 and the ink sheet 3 heated by the recording head 1 are wound up and collected by a take-up roller (not shown) in the direction of the arrow shown in the figure. While the recording head l is driving and recording is being performed, the heat roller 7 is held between
Heating and pressurization are carried out constantly by pressing the material into contact with the material. The heat roller 7 is driven at the same speed as the winding roller that winds up the resistor sheet 2, and is driven at a speed equal to the advancing speed of the resistor sheet 2.

Thereafter, the above operations are repeated to perform recording. When the resistor sheet 2 to be supplied runs out, the ribbon cassette (not shown) that stores the resistor sheet 2 is turned over and installed upside down in order to use the resistor sheet 2 repeatedly. Accordingly, the resistor sheet 2 is used many times for recording.

As described above, according to this embodiment, when the same location of the resistor sheet 2 is used many times due to energization recording, the surface of the resistor sheet 20 may become uneven or wrinkled due to the multiple uses. Due to the deformation of the resistor sheet 2, the sheet resistance value of the resistor sheet 2 (including the contact resistance between the recording head 1 and the resistor sheet 2) changes, making it impossible to perform high-quality recording. By providing a certain heat roller 7 and applying heat and pressure, the deformed resistor sheet 2 is shaped after energization recording.The same part of the resistor sheet 2 is used many times to perform energization recording. At this time, the sheet resistance value of the resistor sheet 2 can be restored, and high-quality recorded images can always be obtained.

Here, in order to record even higher image quality, in addition to the above-mentioned device, a recognition circuit (not shown) that recognizes the number of times the same part of the resistor sheet 2 is used, and the results obtained by the recognition circuit are required. Accordingly, a control circuit (not shown) is provided to control the pulse width (energy input time), which is one of the conditions for energizing the resistor sheet 2, so that when the resistor sheet 2 is used many times, the number of times the resistor sheet 2 is used can be controlled. Recognized by the recognition circuit and its L
It is also possible to make the pulse width selected by the control circuit variable depending on the result of the second identification.

By adopting such a configuration, even if the sheet resistance value of the resistor sheet 2 that fluctuates due to multiple use of the same location of the resistor sheet 2 cannot be completely recovered by the heat roller, the resistor sheet 2 can be Desired thermal energy can be applied at all times, and recorded images of higher quality can be obtained.

Furthermore, without using the heat roller 7 and guide roller I5 described above, by using a recognition circuit and a control circuit, the pulse width can be varied according to the fluctuations in the sheet resistance value depending on the number of times of use. This allows for stable recording.

A second embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 shows a schematic diagram of a current transfer type recording apparatus showing a second embodiment of the present invention. In Figure 2, 1
is a recording head, 2 is a resistor sheet, 3 is an ink sheet,
5 is a recording paper, 6 is a platen, and the above structure is similar to that shown in FIG. The difference from the configuration shown in FIG. 1 is that numeral 17 is a platen roller, and that an energized heating head 8 for heating and pressurizing the resistor sheet 2 is provided instead of the heat roller 7, and that the energized heating head 8 and the opposite The point is that the platen roller 17 is provided on the resistor sheet supply side of the recording head 1 and in the vicinity of the recording head 1.

Regarding the current transfer type recording device configured as above,
The operation will be explained below using FIG. 2.

In the second embodiment of the present invention, the resistor sheet 2 and the ink sheet 3 are pressed onto the recording paper 5 by the recording head 1 by the above-mentioned tI', When a pulse signal is sent to the ink sheet 3, in response to the pulse signal, ink flows through the resistor sheet 2 and generates Joule heat.The Joule heat melts the hot-melt ink 13 on the ink sheet 3, and the platen 6 The image is transferred to the recording paper 5 held above. On the other hand, the resistor sheet 2 and ink sheet 3 used for energization recording by the recording head 1 are wound up and collected in the direction of the arrow shown in the figure, but during this time they are held between the energization heating head 8 and the platen roller 17. The resistor sheet 2 is pressed by the energizing heating head 8 and is energized to generate heat while the recording head 1 is driving and recording, and is constantly heated and pressurized.

The above operations are repeated to perform recording.

As described above, according to this embodiment, in order to heat and pressurize the resistor sheet 2 on which energization recording has been performed, the throat 8 for energization heating is provided in place of the heating roller in the first embodiment. Electric record i! Since the resistor sheet 2 is shaped later after being deformed, a heater is not required, and the structure can be simplified. Moreover, since the control target for supplying the appropriate energy to the resistor sheet 2 is either voltage or current pulse width (energy input time), thermal control is easy and is fast. In addition, by disposing the energizing heating head 8 on the resistor sheet 2 supply side of the recording head 1 and near the recording head 1, the energizing heating head 8 heats and shapes the deformed resistor sheet 2. Since the configuration is such that energization recording is performed by the recording throat 1 immediately after pressurization, the heating by the energization heating throat 8 has a preheating effect on the resistor sheet 2, and when the recording head 1 conducts energization recording, recording is performed with low energy. Furthermore, since the peak temperature in the resistor sheet 2 during energization recording can be lowered, damage to the resistor sheet 2 can be reduced.

It should be noted that the temperature of the resistor sheet 2 is below the melting point of the ink when the recording head 1 is energized to record, and when the current is not energized, the recording is not performed due to the preheating effect of the resistor sheet 2 brought about by the heating by the energized heating head 8. Needless to say, there are.

A third embodiment of the present invention will be described below with reference to the drawings.

FIG. 3 shows a schematic diagram of a current transfer type recording apparatus showing a third embodiment of the present invention. In Figure 3, 1
is a recording head, 2 is a resistor sheet, 3 is an ink sheet,
5 is a recording paper, 6 is a platen, 16 is a compression spring, 1B is a feed row arm, and the recording throat 1 is a plate-shaped electrode base, a plurality of recording needles, and boron nitride (boron nitride) which is an electrode support material. It is composed of. The resistor sheet 2 is constructed in the form of an endless belt made of highly heat-resistant resin such as polyamide polycarbonate with conductive carbon dispersed therein. wrapped around. Further, the movement of the resistor sheet 2 is performed by a feed roller 18. Heat) 8 The ink sheet 3 containing the fusible ink 13 is the resistor sheet 2.
and the recording paper 5. The recording head 1 is crimped using a crimping cap 16.

Regarding the current transfer type recording device configured as above,
The operation will be explained below using FIG. 3.

In the third embodiment of the present invention, with the above-described configuration, when a recording start signal is first sent to the recording head 1, the recording head 1 starts recording.
is transported to the recording start position. Then, the recording head 1 presses the resistor sheet 2 and the ink sheet 3 onto the recording paper 5, and at the same time a pulse signal is selectively sent to the recording head 1, a current flows through the resistor sheet 2, generating Joule heat. The heat-melting ink I3 on the ink sheet 3 is melted by the Joule heat and transferred onto the recording paper 5 held on the platen 6. Then, the recording head 1 and the resistor sheet 2 are not moved relative to each other, and the recording head 1 is scanned in the direction of the arrow B in the figure to record on the recording layer 5.
(2) When the recording of the line is completed, the pressure bonding by the recording head 1 is released, and the recording head 1 is conveyed to the recording start position without relative movement between the recording head 1 and the resistor sheet 2, and recording is performed again. Then, the above operation is repeated,
When recording is performed by relatively moving the recording head l and the recording paper 5 by the length of M lines, after releasing the pressure contact between the recording head l and the resistor sheet 2, the resistor sheet 2 is moved by the arrow 18 by the feeding roller 18. By winding the recording head 1 and the resistor sheet 2 in the direction, the recording head 1 and the resistor sheet 2 are moved relative to each other by a length d. On the other hand, when recording is being performed, the ink sheet 3 is always wound up and collected in the direction of the arrow shown.

Thereafter, the above operations are repeated to perform recording.

Here, M is when the recording head 1 and the resistor sheet 2 do not move relative to each other, and when energization recording is continuously performed at the same location on the resistor sheet 2 to record on the recording paper 5, The sheet resistance value of the resistor sheet 2 is set to be below the upper limit of the recording line that does not change, and the length d is set to the recording head 1.
Even better effects can be obtained by setting the diameter to the maximum diameter of 1 dont that can be produced.

As described above, according to this embodiment, when recording is performed by the recording head 1, the recording head 1 and the resistor sheet 2 are configured to record on the recording paper 5 without relative movement, so that the recording is performed on the recording paper 5. When the head 1 and the resistor sheet 2 move relative to each other and the same location on the resistor sheet 2 is used for recording many times, the surface of the resistor sheet 2 may become uneven or wrinkled. resistor sheet 2
Deformation of the resistor sheet 2 is extremely unlikely to occur, a stable sheet resistance value can be maintained during recording, and high-quality recorded images can always be obtained, and the amount of resistor sheet 2 used can be greatly reduced, resulting in a significant reduction in running costs. reduction can be achieved. Furthermore, while the recording head 1 and the resistor sheet 2 are being pressed together, the recording head 1 and the resistor sheet 2 do not move relative to each other. Since the resistor sheet 2 is configured to move relatively, the recording head 1 and the resistor sheet 2 do not rub against each other and the recording pad 1 is not worn out, and the life of the recording head 1 against wear becomes semi-permanent.

A fourth embodiment of the present invention will be described below with reference to the drawings.

FIG. 4 is an explanatory diagram showing a current path flowing through the resistor sheet when the recording head contacts the resistor sheet and electricity is supplied in the fourth embodiment of the present invention. In FIG. 4, 11'' is the recording electrode, 12'' is the return electrode, Y is the direction in which the recording amount 8il 1' in the recording head faces the return electrode 12'', and X is the arrangement direction of the recording electrodes 11'', which is the X direction. In the orthogonal directions, the resistor sheet of the present invention has an in-plane anisotropic sheet resistance value in which the sheet resistance value in the X direction is sufficiently lower than the sheet resistance value in the X direction. For example, such an in-plane anisotropic resistor sheet can be formed by dispersing acicular metal powder in a resin such as polyamide or polycarbonate in an in-plane direction.

The resistor sheet configured as described above will be explained below with reference to FIGS. 4 and 7.

FIG. 4 shows recording electrodes 11a, llb, llc and 11d,
and return electrode 12. It shows a current path on the resistor sheet when a voltage is applied between the two and the resistor sheet of the present invention is energized. Further, No. 70 uses conventional resistor sheets to form recording electrodes 11a, llb, llc, and lld and return electrodes 12. This figure shows the current path on the resistor sheet when a voltage is applied between the two and the resistor sheet is energized. In addition, both FIG. 4 and FIG. 7 show the case where recording is performed using an all-simultaneous drive method in which all driven recording electrodes are turned on at the same time and recording is performed sequentially in order to perform high-speed recording. It is something. Comparing these results, when using the conventional resistor sheet as shown in FIG.
The current path leading to the current path is determined by the state of potential distribution therebetween, so it spreads in the X direction.

On the other hand, recording electrodes 11b and li on both sides of recording electrode 11c
d is being driven, and a potential equivalent to that of the recording electrode 11c is generated in the recording electrode 11b and the lid portion, and the recording electrode 11a
Since the potential on both sides of the recording electrode 11c increases compared to
The current becomes difficult to spread in the X direction, and flows mostly in the X direction. As a result, the recorded dots are separated by the recording electrode 11a and l
Since the current path on the resistor sheet is different from lc, the size and shape are significantly different. In comparison, when the resistor sheet of the present invention is used as shown in FIG. 4, the specific resistance in the
id is difficult to spread in the X direction, and most of it flows directly below in the X direction, so the recording electrodes 11b and 11 on both sides
A current path approximately equal to that of the recording electrode 11c' where d' is driven is formed. As a result, the size and shape of the recorded dots are not affected by the driving pattern of the recording electrode 11', and stable and uniform recording can always be performed.

As described above, according to this embodiment, the resistor sheet has an in-plane anisotropy in which the sheet resistance value in the X direction in FIG. 4 is sufficiently lower than the sheet resistance value in the X direction. Even when recording is performed using the simultaneous drive method, good print quality can be maintained regardless of the driving speed of the recording electrodes, and high-speed recording is possible.

Although the fourth embodiment has a configuration in which recording is performed using an all-simultaneous drive method, the present invention is not limited to this. It goes without saying that even when time-division driving is performed using a set of electrodes that are not adjacent to each other, the effect becomes greater as the distance between the electrodes that are driven simultaneously is shorter.

Further, in the first embodiment, the pulse width (energy injection time) was used as the condition for energizing the resistor sheet 2 controlled by the control circuit according to the result obtained by the recognition circuit, but it may be a voltage or a current.

Further, in the third embodiment, the predetermined amount by which the print head and the print medium move relative to each other is M lines, but the number of energization pulses may be taken as m pulses.

Effects of the Invention Since the present invention is configured as described above, it has the following effects.

By providing heating and pressurizing means to shape the resistor sheet that has been deformed due to being used for energization recording, the sheet resistance value of the resistor sheet can be restored, and the resistor sheet can be used multiple times. running costs can be reduced.

The heating and pressurizing means are placed on the resistor sheet supply side of the recording head.
In addition, by providing the recording head near the recording head, recording can be performed with low energy, and it also serves as a preheating effect for the resistor sheet, which can reduce the peak temperature in the resistor sheet, and restore the sheet resistance value of the resistor sheet. Running costs can be reduced by using the body sheet multiple times.

By using the heating and pressurizing means as an energizing heating means that passes a current through the resistor sheet, the structure is simple, the heat can be easily controlled, and the start-up when the power is turned on can be made faster.

Recording is performed on the recording medium with the recording head and the resistor sheet not moving relative to each other, and after the recording head and the recording medium have moved relative to each other by a predetermined amount, the recording head and the resistor sheet move relative to each other by a predetermined amount while no recording is being performed. By moving, the sheet resistance value during recording can be stabilized, and the amount of resistor sheet used can be greatly reduced, leading to a significant reduction in running costs.

By releasing the pressure bond between the resistor sheet and the recording head and then moving the recording head and the resistor sheet relative to each other by a predetermined amount, wear of the recording head does not occur and reliability of the recording head is improved.

The number of times the same part of the resistor sheet is used is fJ! hsuzu,
By controlling the energization conditions such as voltage, current, and pulse width to the resistor sheet according to the recognition result, even if the sheet resistance value of the resistor sheet fluctuates due to repeated use of the resistor sheet, You can always obtain high-quality recorded images,
Running costs can be reduced by using the same Δ location on the resistor sheet many times.

The resistor sheet has anisotropy in its sheet resistance value, so increasing the number of electrodes that are driven simultaneously in the recording mode approaches simultaneous driving of all electrodes.)
, it is possible to perform high-speed energization recording without being influenced by nearby drive electrodes, and to maintain good print quality.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a current transfer type recording device according to a first embodiment of the present invention, FIG. 2 is a schematic diagram of a current conduction transfer type recording device according to a second embodiment of the present invention, and FIG. A schematic configuration diagram of a current transfer type recording apparatus according to a third embodiment of the present invention, and FIG. 4 is a schematic configuration diagram showing the state of the contact surface where a recording head contacts a resistor sheet according to a fourth embodiment of the present invention. 5 is a schematic configuration diagram of a conventional current transfer type recording device, FIG. 6 is an enlarged detailed view of section A in FIG. 5, and FIG. 7 is a contact with the recording resistor sheet shown in FIG. 5. FIG. 2 is a schematic configuration diagram showing the state of the contact surface. ■... Recording head, 2... Resistor sheet, 3... Ink sheet, 4... Ink ribbon, 5... Recording paper, 6...Platen, 7...Heat roller, 8...Group/electrification heating pad, 11...Recording electrode, 12...Return electrode, 13・・・・・・Thermofusible ink, 14・Old・Heath film, 15・・・・Guide roller, 16・
...Crimping spring, 17...Platen roller,
18...Feed roller. Name of agent: Patent attorney Masatoshi Awano, 1 person/--Kimaro head and -Kiichi Kiyoshi sheet 3-Ink sheet, r-X Hoku 6--Graten 7--Ki roller 13-11 Ink melting, printing ink 14---Here is the final illustration 3 □ 8 Figure 4 Figure 4 Figure 4 Figure 1

Claims (7)

[Claims] (1) A recording head that performs recording, a resistor sheet that generates Joule heat by the current supplied from the recording head, and a heating/pressing means that heats and presses the resistor sheet, and An electrical transfer type recording apparatus characterized in that the resistor sheet is configured to be able to be used repeatedly by shaping the deformed resistor sheet using the heating and pressurizing means. (2) The current transfer type recording apparatus according to claim 1, wherein the heating/pressing means is disposed on the resistor sheet supply side of the recording head and near the recording head. (3) The current transfer type recording apparatus according to claim (1), wherein the heating/pressing means is constituted by an energization heating means for passing an electric current through the resistor sheet. (4) A recording head that performs recording and a resistor sheet that generates Joule heat by the current supplied from the recording head, and records on a recording medium in a state where the recording head and the resistor sheet do not move relative to each other. After the recording head and the recording medium have moved relative to each other by a predetermined amount, the recording head and the resistor sheet are moved relative to each other by a predetermined amount when no recording is being performed. (5) The current transfer type recording apparatus according to claim 4, wherein the recording head and the resistor sheet are moved relative to each other by a predetermined amount after the pressure contact between the resistor sheet and the recording head is released. (6) A recording head that performs recording, a resistor sheet that generates Joule heat by the current supplied from the recording head, a recognition means that recognizes the number of times the same portion of the resistor sheet is used, and the recognition means A current transfer type recording apparatus characterized in that the resistor sheet is used many times, and includes a control means for controlling the current application conditions to the resistor sheet in accordance with the obtained results. (7) A resistor sheet that generates heat when energized by a recording head having at least one pair or more of opposing recording electrodes and return electrodes, wherein the sheet resistance value in the direction in which the recording electrodes and the return electrodes face each other is A resistor sheet characterized in that the sheet resistance value is lower than the sheet resistance value in a direction perpendicular to the above direction.