JPH0768868A - Recording device - Google Patents

Abstract

PURPOSE:To prevent the waviness of a recording medium at the time of recording in high density by a method wherein the peripheral speed of a recording medium transferring means in a position where the means abuts against the recording medium is made different in a direction orthogonal to the direction in which the recording medium is transferred. CONSTITUTION:Discharge rollers 10a, 10b are molded into a conical shape, and the outermost periphery of each roller has a rubber material and the like for transmitting a rotational force to a recording sheet P by friction. The discharge rollers 10a, 10b are placed so that their portions having a larger outer diameter are positioned toward the central part of a recording medium, and their portions having a smaller outer diameter, toward the outside thereof, respectively, in a direction orthogonal to the direction in which the recording medium is transferred. Further, the discharge rollers are placed so as to be symmetrical on the basis of the central part in the direction in which the recording sheet P is transferred. Furthermore, spurs 11a, 11b are positioned on the recording face side of the recording sheet P and, accordingly, the spurs are machined from a plastics material and the like excellent in water-repellent properties, and ink is allowed to hardly adhere thereto.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording device which is an output device such as a personal computer and a word processor, and more particularly to an ink jet recording device which ejects ink from a recording head to perform recording.

[0002]

2. Description of the Related Art Conventionally, various ink jet recording apparatuses for ejecting ink according to image information to record on a recording medium have been developed and put into practical use. Among these, in the serial type ink jet recording apparatus, as shown in FIG. 7, a carriage (not shown) equipped with a recording head 51 is reciprocated in the main scanning direction while being conveyed by the conveyance mechanism 52 in the sub scanning direction. Recording is performed by ejecting ink from the ink ejection surface 51a of the recording head 51 onto the recording medium P.

In such an ink jet recording apparatus, since ink is directly ejected onto the recording medium P to perform recording, in order to improve the recording accuracy, the distance between the recording head 51 and the recording medium P is increased. (Hereinafter, referred to as the paper distance)
Need to be held with high precision. Therefore, the distance between the sheets is determined by the transport mechanism 52 accurately positioned, that is, the tangent line between the transport roller 52a and the discharge roller 52b, and the recording medium P is the plate 52c and the spur urged by the rows 52a and 52b. 52d is always located on the tangent.
The discharge roller 52b is connected to the transport roller 52a by a mechanism (not shown), and is configured so that the rotation direction and the peripheral speed are the same.

[0004]

However, in the above-mentioned conventional ink jet recording apparatus, when the high density recording is performed, the waviness of the recording medium P is inevitably generated, and the space between the recording head 51 and the above-mentioned recording head 51 is increased. There is a problem that the distance deteriorates and the recording accuracy decreases. Further, the ink on the recording medium P may be attached to other members such as an exterior.

Therefore, an object of the present invention is to prevent waviness of the recording medium during high-density recording and to keep the distance between the recording head and the recording medium constant.

[0006]

A typical structure of the present invention for achieving the above object is a recording means for recording on a recording medium, and a first conveying means for conveying the recording medium to a recording position. It is arranged on the downstream side of the recording position in the transport direction,
A second conveying unit that conveys the recording medium in association with recording, and the peripheral speed of the second conveying unit at the position in contact with the recording medium is different in the direction orthogonal to the recording medium conveying direction. It is characterized by that. More specifically, the peripheral speed of the second conveying means at the position where it abuts against the recording medium is
In the direction orthogonal to the recording medium conveyance direction, the peripheral speed of the central portion is configured to be faster than the peripheral speed of both side portions,
Further, the peripheral speed of both side portions in the direction orthogonal to the recording medium conveying direction is configured to be substantially equal to the peripheral speed of the first conveying means.

[0007]

In the recording apparatus having the above structure, the peripheral speed of the second conveying means at the position where it abuts against the recording medium differs in the direction orthogonal to the recording medium conveying direction. Is faster than the peripheral speed of both side portions, and the peripheral speed of both side portions of the second conveying means is substantially equal to the peripheral speed of the first conveying means, so that between the first conveying means and the second conveying means. Tension is applied to the recording medium in the recording medium conveying direction and in a direction orthogonal to the conveying direction, so that the recording medium is prevented from waviness when high density recording is performed, and The distance can be kept constant.

[0008]

【Example】

[First Embodiment] Next, an embodiment of a recording apparatus to which the present invention is applied will be described with reference to the drawings. In this embodiment, a case where the present invention is applied to an ink jet recording apparatus which adopts an ink jet recording method will be described.
FIG. 1 is a perspective explanatory view schematically showing a schematic configuration of the recording apparatus, and FIG. 2 is a front explanatory view thereof.

First, the schematic structure of an ink jet recording apparatus will be described with reference to the schematic perspective view of the apparatus shown in FIG. 1. In this recording apparatus, a recording sheet P, which is a recording medium, is conveyed by a first conveying means 7 and a second conveying means 10, The recording medium P is conveyed in the sub-scanning direction by 11, and the carriage 3 carrying the inkjet recording head 1 is reciprocally moved in the main scanning direction with respect to the recording sheet P, and ink is ejected from the inkjet recording head 1 to perform recording. Is. Hereinafter, the configuration of each part of the recording device will be specifically described.

The (recording means) 1 is a recording head which is a recording means, and records an ink image on the recording sheet P conveyed by the first conveying means 7 and the second conveying means 10, 11. As a recording means in this apparatus, an inkjet recording method is used in which ink is ejected from a recording head to perform recording. That is, this recording head has a fine liquid discharge port (orifice), a liquid passage and an energy acting portion provided in a part of this liquid passage, and energy generation for generating droplet forming energy for acting on the liquid in the acting portion. Equipped with means.

As an energy generating means for generating such energy, a recording method using an electromechanical transducer such as a piezo element, electromagnetic waves such as a laser are irradiated to generate heat, and droplets are ejected by the action of the heat generation. There are a recording method using an energy generating means, a recording method using an energy generating means for heating a liquid and discharging the liquid by an electrothermal converter such as a heating element having a heating resistor.

Among them, a recording head used in an ink jet recording method for ejecting a liquid by thermal energy has a high density of liquid ejection ports (orifices) for ejecting recording liquid droplets to form ejection liquid droplets. Since they can be arranged, high resolution recording is possible. Among them, the recording head using the electrothermal converter as the energy generating means can easily be made compact, and has the advantages of the IC technology and the microfabrication technology, which have been remarkably improved in technology and reliability in the recent semiconductor field. This is advantageous because it can be used in two parts, high-density mounting is easy, and the manufacturing cost is low.

An ink tank 2 is connected to the recording head 1, and ink is supplied from the ink tank 2 to eject ink onto a recording sheet P in response to a signal for recording.

The (carriage) 3 is a carriage,
The recording head 1 and the ink tank 2 are mounted to reciprocate in the sub-scanning direction (arrows a and b directions). The carriage 3 is connected to a lead screw 4 having a spiral groove 4a, and a screw pulley 4b is attached to an end of the lead screw 4. Both ends of the carriage 3 are guided by guide rails 5 supported by the main body of the apparatus. The material of the carriage 3 is selected so as to have a sufficiently rigid structure depending on the usage of the apparatus body.

Reference numeral 6 denotes a carriage motor which is a drive source and transmits a driving force to the lead screw 4 via the carriage belt 6a and the screw pulley 4b. Therefore, by driving the carriage motor 6 to rotate forward and backward, the driving force is transmitted to the lead screw 4 via the carriage belt 6a and the screw pulley 4b, and the carriage 3 reciprocates in the directions of arrows a and b in the figure. To do.

The (first conveying means) 7 is a conveying roller which is the first conveying means and conveys the recording sheet P to the recording position. A roller gear 7a is integrally provided at one end of the transport roller 7, and a motor gear 8a of a drive motor 8 that is a drive source meshes with the roller gear 7a. Therefore, by driving the drive motor 8, the drive force is transmitted to the conveying roller 7 via the motor gear 8a and the roller gear 7a, and the recording sheet P is moved to the arrow c in the figure.
It conveys in the direction. Further, 9 is a plate for pressing the recording sheet P conveyed to the recording position by the conveying roller 7 to the conveying roller 7.

(Second transporting means) 10 and 11 are second transporting means, and discharge rollers 10a and 10b as a driving rotator for transporting the recording sheet P along with recording, and the discharge roller 10 described above.
It has spurs 11a and 11b as driven rotors that rotate by being pressed against a and 10b, and are arranged downstream of the recording position in the recording medium conveyance direction. The discharge roller
10a and 10b are configured to rotate in the same direction in conjunction with the rotation of the conveying roller 7 by a drive transmission mechanism (not shown).

The discharge rollers 10a and 10b are formed in a conical shape, and the outermost periphery thereof has a rubber material or the like for transmitting the rotational force to the recording sheet P by friction. The discharge rollers 10a and 10b are arranged such that the one having a larger outer diameter is closer to the center and the one having a smaller outer diameter is closer to the outer side in the direction orthogonal to the recording medium conveyance direction. They are arranged so as to be bilaterally symmetric with respect to the central portion of P in the transport direction.

Further, the spurs 11a and 11b are recording sheets P.
Since it is located on the recording surface side, it is processed with a plastic material or the like having good water repellent property, and it is difficult for ink to adhere. A spur 11 that is pressed against the discharge roller 10a and is driven to rotate.
One a is pressed against each of the larger and smaller outer diameters of the discharge roller 10a. The discharge roller 10b
The same applies to the spur 11b that is pressed against and rotates.

[0020] In this embodiment, each of the discharge rollers 10a, as shown in FIG. 2, d ₁ and an outer diameter smaller at 10b, v ₁ the peripheral speed of the outer diameter d ₁ at the roller rotates, the transport roller the circumferential speed v _0, v ₁ relationship when 7 peripheral speed of set to v ₀ is, v is set to be ₀ = v _1.

[0021] Here, each of the discharge rollers 10a, d ₂ the outer diameter of the larger in 10b, the if the peripheral speed of the outer diameter d ₂ at the time of roller rotation v _2, the circumferential velocity v _1, v ₂ It can be seen that the relation of d ₂ > d ₁ v ₂ / d ₂ = v ₁ / d _{1 is such} that v ₂ > v ₁ .

[0022] Thus, the peripheral speed of the discharge rollers 10a, 10b are different in the direction orthogonal to the conveyance direction of the recording medium, and more particularly than the peripheral speed v ₁ in the direction of the peripheral speed v ₂ of the inboard is outboard Get faster That is, the force F _a widening on both sides of the recording sheet P outward, F _b is generated.

As a result, the nip portion between the transport roller 7 and the plate 9, the discharge rollers 10a and 10b, and the spur 11 are provided.
The recording sheet P on the straight line connecting the nip portion with a and 11b is tensioned in the recording medium conveyance direction (direction of arrow d in FIG. 2) and in the direction orthogonal to the conveyance direction (direction of arrow e in FIG. 2). Therefore, the recording sheet P between the nip portions can maintain a smooth surface, and the distance between the recording head 1 and the recording sheet P at the recording position between the nip portions can be kept constant. In addition, under any circumstances, especially when high-density recording is performed, the corrugation of the recording sheet P can be prevented, and the problem caused by the corrugation of the recording sheet P is resolved.

[Second Embodiment] Next, a recording apparatus according to a second embodiment of the present invention will be described with reference to the drawings. It should be noted that detailed description of means having substantially the same configuration as that of the above-described embodiment is omitted, and members having substantially the same functions are designated by the same reference numerals. Hereinafter, the second conveyance means, which is a feature of the present invention, will be described with reference to FIGS. 3 and 4.

(Second Conveying Means) The second conveying means in this embodiment, as shown in FIG. 3, is a discharge roller 12a, 12 as a driving rotator for conveying the recording sheet P along with recording.
b, 12c and spurs 13a, 13b, 13 as driven rotors that are driven to rotate by being pressed against the discharge rollers 12a, 12b, 12c.
c and are arranged on the downstream side of the recording position in the recording medium conveyance direction. The discharge rollers 12a, 12
b and 12c are idle rollers 14a and 14 which are drive transmission mechanisms.
b and 14c are configured to rotate in the same direction in conjunction with the rotation of the transport roller 7.

A rubber material or the like for transmitting the rotational force to the recording sheet P by friction is provided on the outermost periphery of the discharge rollers 12a, 12b, 12c. Of these discharge rollers, the discharge roller 12a is formed to have a larger outer diameter than the other discharge rollers 12b and 12c. Further, the discharge rollers 12a are arranged at the central portion in the direction orthogonal to the recording medium conveying direction, the discharge rollers 12b, 12c are arranged at the outer side portions, and the discharge rollers 12b, 12c are arranged at the central portion of the discharge roller 12a. Are arranged symmetrically with respect to.

Further, since the spurs 13a, 13b, 13c are located on the recording surface side of the recording sheet P, they are made of a plastic material having a good water repellent property, and ink is hard to adhere to them. The spur 13a, which is rotated by being pressed against the discharge roller 12a in the central portion, has a large outer diameter of the discharge roller 12a.
One is pressed against each 12a1. The discharge rollers 12b and 12c are in pressure contact with spurs 13b and 13c, respectively.

In the present embodiment, as shown in FIG. 4, the outer diameters of the discharge rollers 12b and 12c are d ₄ , the peripheral speed of the outer diameter d ₄ when the rollers are rotating is v ₄ , and the peripheral speed of the conveying roller 7 is the circumferential speed v _0, v relationship ₄ when the v ₀ is, v is set to be ₀ = v _4.

Here, if the outer diameter of the portion 12a1 having a large outer diameter of the discharge roller 12a is d ₃ , and the peripheral speed of the outer diameter d ₃ when the roller is rotating is v ₃ , the peripheral speeds v ₃ , v ₄ relationship, d _3> from _{d 4 v 3 / d 3 =} v 4 / d 4, v 3> v it can be seen that _four.

Therefore, the discharge rollers 12a, 12b, 12c
Is different in the direction orthogonal to the recording medium conveyance direction, and more specifically, the peripheral speed v ₃ of the discharge roller 12a located in the central portion is located outside the discharge rollers 12b and 12c.
It is faster than the peripheral speed v ₄ . That is, forces F _c and F _d that spread both sides of the recording sheet P outward are generated.

As a result, similar to the above-described embodiment, the nip portion between the conveying roller 7 and the plate 9, the discharging rollers 12a, 12b, 12c and the spurs 13a, 13b, 13c.
The recording sheet P on the straight line connecting the nip portion of
Since tension is applied in the recording medium conveyance direction (direction of arrow d in FIG. 4) and the direction orthogonal to the conveyance direction (direction of arrow e in FIG. 4), the recording sheet P between the nip portions maintains a smooth surface. The distance between the recording head 1 and the recording sheet P at the recording position between the nip portions can be kept constant. In addition, under any circumstances, especially when high-density recording is performed, the corrugation of the recording sheet P can be prevented, and the problem caused by the corrugation of the recording sheet P is resolved.

[Third Embodiment] Next, a recording apparatus according to a second embodiment of the present invention will be described with reference to the drawings. It should be noted that detailed description of means having substantially the same configuration as that of the above-described embodiment is omitted, and members having substantially the same functions are designated by the same reference numerals. Hereinafter, the second conveying means, which is a feature of the present invention, will be described with reference to FIGS. 5 and 6.

(Second Conveying Means) The second conveying means in this embodiment, as shown in FIG. 5, is a discharge roller 15a, 15b as a driving rotator that conveys the recording sheet P along with recording.
And spurs 16a and 16b as driven rotors that are driven to rotate by being pressed against the discharge rollers 15a and 15b, and are arranged downstream of the recording position in the recording medium conveyance direction. The discharge rollers 15a and 15b are configured to rotate in the same direction in conjunction with the rotation of the transport roller 7 by a drive transmission mechanism (not shown).

The discharge rollers 15a and 15b and the spurs 16a,
16b is arranged at a predetermined angle α with respect to a plane orthogonal to the recording medium conveying direction, and is further arranged so as to be bilaterally symmetrical with respect to the central portion of the recording sheet P in the conveying direction. . Further, since the spurs 16a and 16b are located on the recording surface side of the recording sheet P, they are made of a plastic material having good water repellency and the like, which makes it difficult for ink to adhere.

Further, in this embodiment, the peripheral speed of the discharge roller 15 in the nip portion between the discharge roller 15 and the spur 16 is configured to be higher than the peripheral speed of the conveying roller 7, as shown in FIG. As shown, when the peripheral speed of the transport roller 7 is v ₀ and the peripheral speed of the discharge rollers 15a and 15b in the nip portion between the discharge rollers 15a and 15b and the spurs 16a and 16b is v ₅ , the peripheral speed v _{0 is shown.} , V ₁ is set so that v ₅ = 1.03 to 1.05 v ₀ .

Therefore, the discharge roller 15 and the spur 16 are inclined by the angle α with respect to the plane orthogonal to the conveying direction, and the peripheral speed of the discharge roller 15 is about 4% of the peripheral speed of the conveying roller 7. Since the speed is relatively high, the nip portion between the transport roller 7 and the plate 9 and the discharge rollers 15a and 15b and the spur
The recording sheet P on the straight line connecting the nip portion with 16a and 16b is tensioned in the recording medium conveyance direction (direction of arrow d in FIG. 6) and in the direction orthogonal to the conveyance direction (direction of arrow e in FIG. 6). Is given. However, v ₅ cos α> v ₀ is satisfied.

Therefore, the recording sheet P between the nip portions can maintain a smooth surface, and the distance between the recording head 1 and the recording sheet P at the recording position between the nip portions can be kept constant. In addition, under any circumstances, especially when high-density recording is performed, the corrugation of the recording sheet P can be prevented, and the problem caused by the corrugation of the recording sheet P is resolved.

[Other Embodiments] In the above-mentioned embodiments, the ink jet recording system is used as the recording means.
The electrothermal converter is energized according to a recording signal, and the thermal energy applied by the electrothermal converter utilizes the film boiling generated in the ink to grow and contract the bubbles generated in the ink, thereby ejecting the ink from the ejection port. It is more preferable that the recording is performed by discharging.

With regard to its typical structure and principle, it is preferable to use the basic principle disclosed in, for example, US Pat. Nos. 4,723,129 and 4740796. This method can be applied to both the so-called on-demand type and continuous type, but in the case of the on-demand type in particular, it is arranged corresponding to the sheet or liquid path holding the liquid (ink). By applying at least one drive signal to the electrothermal transducer, which corresponds to the recorded information and gives a rapid temperature rise beyond nucleate boiling,
This is effective because heat energy is generated in the electrothermal converter to cause film boiling on the heat acting surface of the recording head, and as a result, bubbles in the liquid can be formed in a one-to-one correspondence with this drive signal. Due to the growth and contraction of the bubbles, the liquid is ejected through the ejection openings to form at least one droplet. It is more preferable to make this drive signal into a pulse shape because bubbles can be grown and contracted immediately and appropriately, so that particularly excellent liquid ejection can be achieved.

As the pulse-shaped drive signal, those described in US Pat. Nos. 4,463,359 and 4,345,262 are suitable. If the conditions described in US Pat. No. 4,313,124 of the invention relating to the rate of temperature rise on the heat acting surface are adopted, more excellent recording can be performed.

As the constitution of the recording head, in addition to the combination constitution of the discharge port, the liquid passage and the electrothermal converter (the linear liquid passage or the right-angled liquid passage) as disclosed in the above-mentioned respective specifications. The present invention also includes configurations using US Pat. Nos. 4,558,333 and 4,459,600, which disclose configurations in which the heat acting portion is arranged in a bending region.

Further, JP-A-59-123670, which discloses a structure in which a common slit is used as a discharge portion of a plurality of electrothermal converters, and an opening for absorbing a pressure wave of thermal energy are disclosed. Japanese Patent Laid-Open Publication No.
The effect of the present invention is effective even if the configuration is based on Japanese Patent Laid-Open No. 59-138461. That is, according to the present invention, recording can be surely and efficiently performed regardless of the form of the recording head.

Further, the present invention can be effectively applied to a full line type recording head having a length corresponding to the maximum width of a recording medium which can be recorded by the recording apparatus. Such a recording head may have a structure that satisfies the length by combining a plurality of recording heads or a structure as one recording head integrally formed.

In addition, even in the case of the serial type described above, when it is mounted on the recording head fixed to the carriage or the carriage, it is possible to electrically connect with the apparatus main body and supply the ink from the apparatus main body. A replaceable chip type recording head or a cartridge type recording head in which an ink tank is integrally provided in the recording head itself may be used.

Further, it is preferable to add a recovery means for the recording head, a preliminary auxiliary means, etc., which are provided as a configuration of the recording apparatus of the present invention, because the effects of the present invention can be further stabilized. Specific examples thereof are capping means, cleaning means, pressurizing or suctioning means for the recording head, electrothermal converter or a heating element other than this, or preheating means by a combination thereof, and recording. It is also effective to perform a stable recording by performing a preliminary discharge mode in which another discharge is performed.

Regarding the type and number of recording heads mounted on the carriage, for example, only one recording head is provided corresponding to a single color ink, or a plurality of inks having different recording colors and densities are supported. And a plurality of them may be provided. That is, for example, the recording mode of the recording apparatus is not limited to a recording mode of only the mainstream color such as black, but may be a combination of a plurality of recording heads integrally formed, but a mixed color of different colors or a mixed color It is also applicable to a device with at least one of the full colors according to

In addition, although the ink is described as a liquid in the above-mentioned embodiments, it is an ink which solidifies at room temperature or lower and softens or liquefies at room temperature, or in the ink jet recording system. 30 inks
Generally, the temperature is controlled in the range of ℃ or more and 70 ℃ or less to control the temperature of the ink so that the viscosity of the ink is in the stable ejection range. good. In addition, it is possible to prevent the temperature rise due to thermal energy from being positively used as the energy for changing the state of the ink from the solid state to the liquid state, or to use the ink that solidifies when left standing for the purpose of preventing ink evaporation. However, in any case, heat is applied such as ink that is liquefied by application of heat energy according to the recording signal and liquid ink is ejected, or that begins to solidify when it reaches the recording sheet. It is also applicable when using an ink that has the property of being liquefied for the first time by energy.

The ink in such a case is described in JP-A-54-568.
As described in Japanese Patent Publication No. 47 or Japanese Patent Application Laid-Open No. 60-71260, a mode in which it is opposed to an electrothermal converter in a state of being held as a liquid or a solid substance in a concave portion or a through hole of a porous sheet. Also good. The most effective one for each of the above-mentioned inks is to execute the above-mentioned film boiling method.

Further, as the form of the above-mentioned ink jet recording device, in addition to the form used as an image output terminal of an information processing device such as a computer, a form of a copying device combined with a reader or the like, and a form of a facsimile device having a transmission / reception function. It may be something to take.

Although an example of using the ink jet recording system as the recording means has been described above, the recording system of the present invention is not limited to the ink jet recording system, and other thermal transfer recording system, thermal recording system, and Can be applied to a recording method such as a wire dot recording method or another recording method. Further, it is not necessary to limit to the serial recording method, and a so-called line recording method may be used.

[0051]

As described above, tension is applied to the recording medium between the first conveying means and the second conveying means in the recording medium conveying direction and in the direction orthogonal to the conveying direction. The recording medium between the first conveying means and the second conveying means maintains a smooth surface, and the distance between the recording means and the recording medium at the recording position between the first conveying means and the second conveying means is constant. Can be kept at Therefore, it is possible to prevent undulation of the recording medium and prevent problems caused by undulation of the recording medium under any circumstances, especially when high-density recording is performed. In addition, it is possible to improve the recording accuracy and the recording quality with an inexpensive structure, and it is possible to provide a high-quality recording apparatus.

[Brief description of drawings]

FIG. 1 is a perspective explanatory view schematically showing a schematic configuration of a recording apparatus according to a first embodiment of the invention.

FIG. 2 is a front explanatory view of the recording apparatus.

FIG. 3 is a perspective explanatory view schematically showing a schematic configuration of a recording apparatus according to a second embodiment of the invention.

FIG. 4 is a front explanatory view of the recording apparatus.

FIG. 5 is a perspective explanatory view schematically showing a schematic configuration of a recording apparatus according to a second embodiment of the invention.

FIG. 6 is a front explanatory view of the recording apparatus.

FIG. 7 is an explanatory diagram of a conventional technique.

[Explanation of sign]

P ... Recording sheet d ₁ , d ₂ , d ₃ , d ₄ ... Outer diameter v ₀ , v ₁ , v ₂ , v ₃ , v ₄ ... Peripheral speed _Fa , _Fb , _Fc , _Fd ... Force 1 ... Recording head 2 ... Ink tank 3 ... Carriage 4 ... Lead screw 4a ... Spiral groove 4b ... Screw pulley 5 ... Guide rail 6 ... Carriage motor 6a ... Carriage belt 7 ... Conveying roller 7a ... Roller gear 8 ... Drive motor 8a ... Motor gear 9 ... Plate 10, 11 ... Second conveying means 10a, 10b ... Ejection rollers 11a, 11b ... Spurs 12a, 12b, 12c ... Ejection rollers 12a1 ... Large outer diameter portions 13a, 13b, 13c ... Spurs 14a, 14b, 14c ... Idle rollers 15a , 15b ... Ejection rollers 16a, 16b ... Spur

Claims (13)

[Claims] 1. A recording unit for recording on a recording medium, a first conveying unit for conveying the recording medium to a recording position, and a recording medium which is arranged on the downstream side of the recording position in the conveying direction. A second transporting means for transporting the recording medium, wherein the peripheral speed of the second transporting means at the position in contact with the recording medium is different in the direction orthogonal to the recording medium transporting direction. apparatus. 2. The peripheral speed of the second conveying means at the position where it abuts against the recording medium is such that the peripheral speed of the central portion is faster than the peripheral speed of both side portions in the direction orthogonal to the recording medium conveying direction. The recording apparatus according to claim 1, wherein the recording apparatus is configured as described above. 3. The peripheral speed of the second conveying means at the position where it abuts against the recording medium is such that the peripheral speed of both side portions in the direction orthogonal to the recording medium conveying direction is substantially equal to the peripheral speed of the first conveying means. The recording apparatus according to claim 2, wherein the recording apparatus is configured to have the following configuration. 4. The recording apparatus according to claim 1, wherein the second conveying unit is configured to be bilaterally symmetrical with respect to a central portion in the recording medium conveying direction. 5. The recording surface of the recording medium, wherein the second conveying unit has a driving rotating body that conveys the recording medium in association with recording and a driven rotating body that is driven to rotate by being pressed against the driving rotating body. The recording apparatus according to claim 1, wherein the driven rotating body located on the side is processed with a material having a high water repellent property. 6. A recording unit for recording on a recording medium, a first conveying unit for conveying the recording medium to a recording position, and a recording medium which is arranged on the downstream side of the recording position in the conveying direction and which is used for recording. A recording apparatus, comprising: a second conveyance unit that conveys the second conveyance unit, wherein the second conveyance unit has a predetermined angle with respect to a plane orthogonal to the recording medium conveyance direction. 7. The recording apparatus according to claim 6, wherein the peripheral speed of the second conveying unit is configured to be higher than the peripheral speed of the first conveying unit. 8. The recording apparatus according to claim 6, wherein the second conveying unit is configured so as to be bilaterally symmetrical with respect to a central portion in the recording medium conveying direction. 9. The second conveying means includes a driving rotating body that conveys a recording medium in association with recording, and a driven rotating body that is driven to rotate by being pressed against the driving rotating body. 7. The recording apparatus according to claim 6, wherein the driven rotating body is configured to be parallel to each other. 10. The recording apparatus according to claim 9, wherein the driven rotating body is located on the recording surface side of the recording medium and is made of a material having good water repellent property. 11. The recording apparatus according to claim 1, wherein the recording apparatus is an inkjet recording method in which a recording unit ejects ink in accordance with a signal to perform recording. 12. The recording device according to claim 11, wherein the recording device includes an electrothermal converter for generating thermal energy for ink ejection by the recording means. 13. The recording apparatus according to claim 12, wherein the recording means ejects the ink from the ejection port by utilizing the film boiling generated in the ink by the thermal energy applied by the electrothermal converter. The recording device described.