JP2008254218A - Conveying guiding device for material to be recorded, recorder and liquid jet apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveying guiding device or the like for a material to be recorded which can keep a stable conveyance posture with no occurrence of head friction even when a long recording head and platen are used. <P>SOLUTION: The conveying guiding device 1 for the material to be recorded is equipped with the platen 28 which regulates a gap to a head surface 15 of the recording head 13, and a guiding member 31 which is formed downstream in a conveyance direction of the material to be recorded R of the platen and has guide surfaces 33 and 34 with a distance to the head surface 15 formed larger than that of the platen 28 so as to prevent the floating of the material of a part on the platen caused by the curling of a leading end Rf of the material. Projections 35 are formed at points of parts in the width direction of the material on the guide surfaces of the guiding member 31 for other materials to be recorded. The projections prevent the floating at the part on the platen of the other materials higher in rigidity than the material prevented from floating by the guide surfaces. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a platen that defines a gap with a head surface of a recording head, and a recording material on a platen upper portion that is provided downstream of the recording material in the conveyance direction of the platen and is caused by a curl at the tip of the recording material A recording material conveyance guide apparatus provided with a guide member having a guide surface formed so that the distance from the head surface is larger than the platen so as to prevent floating of the recording medium, and a recording apparatus provided with the recording material conveyance guide device About.
Furthermore, the present invention relates to a liquid ejecting apparatus such as an ink jet recording apparatus that performs recording (adhering liquid) on a recording material (liquid ejecting material) by ejecting (ejecting) a liquid such as ink from the head, and the like. The present invention relates to a conveyance guide device for a liquid injection material provided for a liquid injection device.

  Here, the liquid ejecting apparatus uses an ink jet recording head, and is not limited to a recording apparatus such as a printer, a plotter, a copying machine, and a facsimile machine that discharges ink from the recording head to perform recording on a recording material. Instead, it includes a device for ejecting a liquid corresponding to the application from a liquid ejecting head corresponding to the recording head to a liquid ejecting material corresponding to a recording material and attaching the liquid to the liquid ejecting material. Use.

  In addition to the recording head, as a liquid ejecting head, a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, and an electrode material (conductive paste) used for forming an electrode such as an organic EL display or a surface emitting display (FED) Examples thereof include an ejection head, a bioorganic matter ejection head used for biochip production, and a sample ejection head as a precision pipette.

  A conventional conveyance guide device for a recording material will be described taking an ink jet printer as an example of a liquid ejecting apparatus and a recording apparatus as an example. Among ink jet printers, there are large ink jet printers that can perform recording by ejecting ink onto a large-sized recording material such as A1 plus (Nobi) size or B0 plus (Nobi) size. In this type of large-scale inkjet printer, paper or film wound into a roll having a width of 24 inches (about 610 mm), 36 inches (about 914 mm), 44 inches (about 1118 mm) and a length of 10 m to 45 m is covered. Mainly used as a recording material R (hereinafter also referred to as roll paper R). Such roll paper R includes, for example, resin-coated photographic paper having high rigidity, plain paper having lower rigidity than that, and the like.

  On the other hand, as shown in the following Patent Document 1, FIG. 14 and FIG. 15, the inkjet printer includes a platen 102 which is provided below the recording head 101 and defines a gap PG with the lower surface of the recording head 101, and the platen. A guide member 103 is provided at a position one step lower in the conveyance direction A of the roll paper R of 102 and prevents the roll paper R from floating on the platen 102 due to the curl of the tip Rf of the roll R. . When the roll paper R having high rigidity is used, it is preferable to raise the leading end Rf of the roll paper R by slightly increasing the height of the guide member 103 as shown by the solid line in FIG. When the roll paper R having a low rigidity is used due to the reaction force acting on the roll paper on the upper part of the platen 102 and the roll paper R having low rigidity is used, the height of the guide member 103 is indicated by a broken line in FIG. It has been proved by experiments and experiences that the float on the platen 102 can be suppressed by making it sufficiently low so that the leading edge Rf of the roll paper R is not lifted.

  In Patent Document 1 below, the floating of the roll paper R on the platen 102 is within an allowable range under both conditions of using the roll paper R with high rigidity and the roll paper R with low rigidity. The height of the guide member 103 that can be maintained at the same height is proposed, and the two types of roll paper R having different rigidity are supported. Specifically, the height of the rib provided on the upper surface of the guide member 103 is set to a uniform height that satisfies the above-described conditions over the entire width direction of the guide member 103, thereby preventing the roll paper R from floating. Yes.

  On the other hand, recently, the recording width that can be recorded by one scan by the recording head 101 has become longer, and the lengths of the recording head 101 and the platen 102 have become longer as the recording width becomes longer. It has become. When such a long platen 102 is used and the height of the guide member 103 is increased as shown in FIG. 15A, the platen 102 is used when the roll paper R having high rigidity is used. Although the upper paper sheet becomes lower and the roll paper R does not rub against the lower surface of the recording head 101, when the roll paper R having low rigidity is used, the paper sheet R becomes larger and the roll paper R becomes larger than the recording head 101. Rub on the bottom.

On the contrary, when the height of the guide member 103 is lowered as shown in FIG. 15B, when the roll paper R having low rigidity is used, the float on the platen 102 is reduced and the gap PG is increased. For this reason, the roll paper R does not rub against the lower surface of the recording head 101. However, when the roll paper R having high rigidity is used, the float on the platen 102 is increased, and the roll paper R is rubbed against the lower surface of the recording head 101 in connection with the decrease in the gap PG. Similarly to the above, even if the height of the guide member 103 is uniformly adjusted, either the roll paper R having high rigidity or the roll paper R having low rigidity is rubbed against the recording head 101, and both roll papers are rubbed. The height of the guide member 103 that keeps the float of R within an allowable range was not found.
JP 2006-224506 A

  The present invention has been made in view of the existence of such problems. By adopting a novel anti-floating structure that utilizes the properties of recording materials having different rigidity, the present invention can be applied to long recording heads and platens. Recording material conveyance guide device capable of maintaining the stable conveyance posture of the recording material without causing head rubbing, and a recording apparatus equipped with the recording material conveyance guide device, etc. It is a problem to provide.

  In order to solve the above-described problem, a recording material conveyance guide device according to a first aspect of the present invention includes a platen that defines a gap with a head surface of a recording head, and a conveyance direction downstream of the recording material of the platen. And a guide member having a guide surface that is formed such that the distance from the head surface is larger than that of the platen so as to prevent the recording material from floating on the upper part of the platen due to curling of the tip of the recording material. In addition, the guide surface of the guide member has a platen portion with respect to another recording material having higher rigidity than the recording material in which the floating is prevented by the guide surface at a part of the recording material in the width direction. A protrusion for preventing the other recording material from floating at the upper portion is provided.

  Even if the recording material with high rigidity does not support the entire leading end in the transport direction from the bottom over the entire width, but supports only a part such as the positions of both ends, the entire leading end is lifted by its own rigidity. On the other hand, a recording material with low rigidity has low rigidity even if only a part of the full width is supported from the bottom of the recording material, so that the unsupported part bends downward and the entire tip is lifted. There is no. The present invention utilizes this difference.

According to the first aspect of the present invention, the leading end of the recording material that has passed over the platen first comes into contact with the guide surface of the guide member that is provided downstream of the platen in the recording material conveyance direction.
If the recording material has high rigidity, the entire leading end of the recording material is lifted upward, so that the floating of the recording material on the upper part of the platen is kept low. On the other hand, in the case of a recording material with low rigidity, the portion where there is no projection is bent downward and the tip of the recording material is lowered as a whole, so that the floating of the recording material on the upper part of the platen is suppressed within an allowable range. . Therefore, even if a long recording head and a platen are provided, the recording material does not rub the head.

  The recording material conveyance guide device according to the second aspect of the present invention is the recording material conveyance guide device according to the first aspect, wherein the protrusions are provided at a plurality of locations in the width direction of the recording material. The distance between the plurality of protrusions provided is low when the plurality of protrusions abut on the recording material having lower rigidity than the other recording material having high rigidity. Is set so as to be bent and come into contact with the guide surface between the protrusions.

  According to this aspect, since the plurality of protrusions are provided, the operation and effect of the first aspect can be reliably obtained, and various types of recording materials having different sizes can be handled. Even when any type of recording material having different rigidity is used, even when a long type recording head and a platen are provided, the head rubbing of the recording material does not occur.

The recording material conveyance guide apparatus according to a third aspect of the present invention is the recording material conveyance guide apparatus according to the second aspect, wherein the protrusions are both ends of a recording material of a fixed size assumed to be used. It is provided in the position which supports the vicinity, respectively.
According to this aspect, it is possible to most effectively obtain the above-described effect using the properties of the recording material having different rigidity with respect to the recording materials of the fixed sizes of various sizes assumed to be used.

  A recording material conveyance guide apparatus according to a fourth aspect of the present invention is the recording material conveyance guide device according to any one of the first to third aspects, wherein the guide surface of the guide member is a recording medium. It is characterized by comprising top portions of conveyance guide ribs provided at a plurality of locations in the width direction of the material.

  According to this aspect, in addition to the operational effects of any of the first to third aspects, the following operational effects are obtained. The leading end of the recording material that has passed over the platen first reaches the top of the transport guide rib and the projection that constitute the guide surface of the guide member. In the case of a recording material with low rigidity, the tip portion without the protrusion is bent downward and comes into contact with the top of the conveyance guide rib. That is, the recording material having low rigidity can be transported in a stable posture with the leading end supported by the transport guide rib. In the case of a recording material with high rigidity, the entire tip of the recording material is lifted upward by the protrusion, and is conveyed without contact with the top of the conveyance guide rib.

A recording material conveyance guide device according to a fifth aspect of the present invention is the recording material conveyance guide device according to any one of the first to fourth aspects, wherein the platen passes through a platen. A suction hole for air suction of the recording material is provided.
According to this aspect, in addition to the function of preventing the recording material from being lifted by the protrusion, an air suction function from the suction hole is added, so that the floating of the recording material on the platen is suppressed to a very small level. Therefore, even when a long recording head and a platen are provided, the recording material can be smoothly conveyed in a stable posture without causing head rubbing.

  A recording apparatus according to a sixth aspect of the present invention is a recording head that performs recording by ejecting ink onto a recording surface of a recording material, and guides the recording material to face the head surface of the recording head. A recording apparatus comprising: a recording material conveyance guide device for conveying a portion, wherein the recording material conveyance guide device is a recording material according to any one of the first aspect to the fifth aspect. It is a conveyance guide device.

  According to this aspect, the use of a novel protrusion utilizing the properties of the recording material having different rigidity can cope with a long recording head or platen, and the recording material is free from head rubbing. A recording apparatus provided with a recording material conveyance guide apparatus capable of maintaining a stable conveyance posture can be provided. Therefore, high-quality recording that is not affected by the type of recording material can be realized by stable and smooth conveyance of the recording material.

  A liquid ejecting apparatus according to an eleventh aspect of the present invention includes a liquid ejecting head that ejects liquid onto a liquid ejecting surface of a liquid ejecting material to perform liquid ejecting, and guides the liquid ejecting material to perform the liquid ejecting. A liquid ejection apparatus including a liquid ejection material conveyance guide device that conveys a portion of the head facing the head surface, wherein the liquid ejection material conveyance guide device is a gap between the liquid ejection head and the head surface. A platen that defines the platen and the head surface so as to prevent the liquid jet material on the upper part of the platen from floating due to a curl at the tip of the liquid jet recording material. And a guide member having a guide surface formed to be larger than the platen, and the guide member has a guide member on the guide surface at a part in the width direction of the liquid jetting material. Protect A protrusion is provided to prevent the other liquid injection material from floating on the upper part of the platen with respect to the other liquid injection material having higher rigidity than the liquid injection material to be used. It is.

  Hereinafter, a recording material conveyance guide apparatus according to the present invention and a recording apparatus which is an example of a liquid ejecting apparatus including the recording material conveyance guide apparatus will be described. First, an ink jet printer 100 is taken up as the best mode for carrying out the liquid ejecting apparatus of the present invention and a recording apparatus as an example thereof, and the outline of the entire structure will be described with reference to the drawings. The ink jet printer 100 described here is, for example, a sheet-like large-format recording material (hereinafter also referred to as a cut sheet) having an A3 plus (Nobi) size or larger, and the above-described A1 plus (Nobi) size or B0 plus (Novi). This is a large-sized ink jet printer that can perform recording on a large-sized recording material R in a roll shape (also referred to as roll paper R).

  FIG. 1 is a perspective view showing an external appearance of the ink jet printer with the main body cover attached, and FIG. 2 is a side view showing the external appearance of the ink jet printer with the main body cover attached. FIG. 3 is a perspective view showing the ink jet printer with the main body cover removed, and FIG. 4 is a side view showing the ink jet printer with the main body cover removed. FIG. 5 is a side sectional view showing the recording head mounted on the carriage and the conveyance guide device for the recording material.

  As shown in FIGS. 3 and 4, the illustrated inkjet printer 100 includes a liquid ejecting apparatus main body and a printer main body 3 that is an example of a recording apparatus main body. As shown in FIGS. 1 and 2, the printer main body 3 is covered with a main body cover 2 that can cover the printer main body 3. In addition, a roll paper holder 5 constituted by a spindle capable of holding the roll paper R and a pair of flange-shaped roll paper pressers is provided at an upper portion near the rear part of the printer main body 3. Further, as an example of the front surface of the printer main body 3, a cartridge holder 8 including a plurality of cartridge slots capable of individually accommodating ink cartridges of each color is provided in a portion near the left end.

  As an example of the front surface of the ink jet printer 100, an operation panel 9 for controlling various operation commands is provided at a portion near the right end, supported by appropriate brackets. Further, the printer main body 3 is provided with a conveyance guide plate 11 with a forward downward inclined posture of about 60 °. The conveyance guide plate 11 guides the roll paper R held by the roll paper holder 5 toward the lower front part in the conveyance direction A of the roll paper R. As shown in FIG. 5, a conveyance roller 21 constituted by a conveyance drive roller 19 and a conveyance driven roller 20 is provided at a position upstream of the conveyance guide plate 11 by partially removing the conveyance guide plate 11. ing. The leading end Rf of the roll paper R fed from the roll paper holder 5 by the transport roller 21 is guided to the recording position 26 downstream in the transport direction A. The transport driven roller 20 is provided at a position slightly shifted from the transport drive roller 19 on the transport direction A side of the roll paper R. By adopting such an arrangement of the driven roller 20 for conveyance, the roll paper R is imparted with a property called “reverse sled” that presses the roll paper R against the platen 28 side. The floating of the roll paper R is suppressed.

  Above the recording position 26, a recording head 13, which is an example of a liquid ejecting head that performs recording by ejecting ink, which is an example of liquid, toward the recording surface of the roll paper R surface is provided. The recording head 13 is integrated with a carriage 10 provided above and can reciprocate in the width direction B (width direction of the recording material) B of the printer main body 3 which is the main scanning direction. On the other hand, below the recording position 26, there is provided a platen 28 for supporting the back surface of the roll paper R and defining a gap PG with the head surface 15 of the recording head 13. 1 is provided.

  Next, the conveyance guide apparatus 1 for a recording material of the present invention that can be applied to the ink jet printer 100 configured as described above is divided into two embodiments, Embodiment 1 and Embodiment 2, in the drawings. A specific description will be given based on this. When the first and second embodiments are specifically identified, the recording material conveyance guide device according to the first embodiment is identified as 1A, and the recording material conveyance guide device according to the second embodiment is identified as 1B.

[Example 1]
FIG. 6 is a plan view of a principal part showing a conveyance guide device for a recording material according to Embodiment 1 of the present invention, and FIG. 7 is a front view of the principal part. 8 is a cross-sectional view taken along line AA in FIG. A recording material conveyance guide apparatus 1A according to the first embodiment is provided at a position one step lower in the conveyance direction A of the roll paper R of the platen 28 provided below the recording head 13 and the roll paper R. A guide member 31 for preventing the roll paper R from floating on the upper part of the platen 28 caused by the curl of the leading edge Rf of the paper R is provided.

  The platen 28 is a conveyance guide member for the roll paper R whose bottom surface is long in the width direction B of the printer main body 3, and a large number of platen ribs 29 extending along the conveyance direction A for the roll paper R are formed on the top surface of the platen 28. The printer main body 3 is arranged in an aligned state with an appropriate interval in the width direction B. The length of the platen rib 29 is set so as to be longer than the nozzle opening 14 of the head surface 15 of the recording head 13 as shown in FIG. Further, the front and rear corner portions of each platen rib 29 are chamfered obliquely to form a guide inclined surface that allows the roll paper R to smoothly enter and exit. An air suction device (not shown) is connected between the platen ribs 29 and the platen ribs 29, and suction holes 30 for adsorbing the roll paper R moving on the platen 28 to the platen 28 side are formed on the platen ribs 29 as an example. Four each and two each are provided between the platen ribs 29.

  The guide member 31 is a conveyance guide member for the roll paper R having an open bottom surface having substantially the same width as the platen 28. The upper surface 32 of the guide member 31 is constituted by two guide surfaces having different heights: a first guide surface 33 lower than the upper surface of the platen 28 and a second guide surface 34 lower than the first guide surface 33. The guide surfaces 33 and 34 are also provided with suction holes 41 and 42 similar to the suction holes 30 formed in the platen 28, respectively. The first guide surface 33 is provided with a protrusion 35 at a part of the roll paper R in the width direction B. The protrusions 35 are provided in the vicinity of both ends of a regular size roll paper R having a width of 16 inches, 24 inches, 36 inches, and 44 inches, which is assumed to be used in this embodiment, and of the roll paper R having a width of 16 inches. A total of 6 pieces are provided at 8 inch pitch and 12 inch pitch so that the vicinity of the center can be supported.

  In this embodiment, the projecting portion 35 is an upwardly inclined surface 36 that gradually increases from the side close to the platen 28, an upper flat surface 37 that is the uppermost portion, a downwardly inclined surface 38 that gradually decreases, and a lower flat surface that is the lowest portion. 39 is a rib protruding upward in a mountain shape. In this embodiment, the length L of the upper flat surface 37 in the transport direction A of the roll paper R is about 2 mm, the distance S between the center of the upper flat surface 37 and the end of the nozzle opening 14 is about 15 mm, and the platen rib 29 The difference t between the height and the height of the upper flat surface 37 is set to about 1.5 mm as an example. Then, by providing the protrusion 35 so as to be in a positional relationship with such a height, when the leading end Rf of the roll paper R having high rigidity comes into contact with the protruding part 35, the entire leading end Rf of the roll paper R Is slightly lifted upward, a reaction force is generated, and the roll paper R is prevented from floating on the upper part of the platen 28.

  On the other hand, the height of the first guide surface 33 itself can keep the roll paper R floating on the platen 28 within an allowable range in which head rubbing does not occur when it comes into contact with the roll paper R having low rigidity. It is set to such a height. Note that the distance of 8 inches and 12 inches (also referred to as pitch) between the six protrusions 35 described above is rigid when the leading edge Rf of the roll paper R having high rigidity comes into contact with the protrusions 35. The leading edge Rf of the high roll paper R does not contact the first guide surface 33 positioned between the adjacent protrusions 35, but the rigidity is high when the leading edge Rf of the low-rigidity roll paper R contacts the protrusion 35. The leading edge Rf of the lower roll paper R bends downward and comes into contact with the first guide surface 33 located between the adjacent protrusions 35.

  The second guide surface 34 is provided with a large number of guide ribs 40 at positions corresponding to the platen ribs 29. The guide rib 40 is also provided with a guide inclined surface similar to the platen rib 29 and the protrusion 35, so that the roll paper R can be smoothly conveyed. When the roll paper R is supplied to the recording material conveyance guide device 1A, whether the roll paper R is a roll paper R having a high rigidity or a roll paper R having a low rigidity. Regardless of whether the recording head 13 and the platen 28 are long types, the lift on the upper part of the platen 28 is kept within an allowable range where no head rubbing occurs. Conveyance and execution of high quality recording are realized.

[Example 2]
FIG. 9 is a main part plan view showing a recording material conveyance guide apparatus according to Embodiment 2 of the present invention, and FIG. 10 is a main part front view thereof. FIG. 11 is a cross-sectional view taken along the line BB in FIG. 10, and FIG. 12 is a perspective view showing a part of a recording material conveyance guide apparatus according to Embodiment 2 of the present invention. FIG. 13 is a front view (a) schematically showing an operation state of the recording material conveyance guide device on the recording material when a recording material having high rigidity is used, and a recording material having low rigidity is used. It is a front view (b) which shows typically the operation state with respect to the recording material of the conveyance guide apparatus of the recording material in the case.

  Similarly to the recording material conveyance guide apparatus 1A according to the first embodiment, the recording material conveyance guide apparatus 1B according to the second embodiment includes a platen 28 provided below the recording head 13 and a roll paper of the platen 28. The guide member 51 is provided at a position one step lower in the R conveyance direction A and prevents the roll paper R from floating on the platen 28 due to curling of the leading edge Rf of the roll paper R. . The recording material conveyance guide apparatus 1B according to the second embodiment has a basic configuration similar to that of the recording material conveyance guide apparatus 1A according to the first embodiment. The same reference numerals used in the first embodiment are used as they are, and the description thereof is omitted.

  The guide member 51 is a conveyance guide member for the roll paper R having an open bottom surface having substantially the same width as the platen 28. The upper surface 52 of the guide member 51 is constituted by two guide surfaces having different heights: a first guide surface 33 lower than the upper surface of the platen 28 and a second guide surface 34 lower than the first guide surface 33. Also, the first guide surface 33 has the six projections 35 at positions corresponding to the platen ribs 29 in the width direction B of the roll paper R, and a number of conveyance guide ribs for promoting smooth conveyance of the roll paper R. 53 is provided.

  The conveyance guide rib 53 has substantially the same shape as the protrusion 35 described above. As an example, the height of the conveyance guide rib 53 is set to be about 1 mm lower than the height of the protrusion 35. In FIG. 11, the portion indicated by the symbol u is the difference in height between the conveyance guide rib 53 and the protrusion 35, and is set to about 1 mm as described above. Then, by providing the conveyance guide rib 53 having such a positional relationship with the height and the projection 35 set so as to have the positional relationship with the height, the leading end of the roll paper R having a high rigidity is provided on the projection 35. When Rf comes into contact, the leading edge Rf of the roll paper R is slightly lifted upward, so that the roll paper R is prevented from being lifted on the upper part of the platen 28.

  On the other hand, the height of the conveyance guide rib 53 can keep the roll paper R from rising on the platen 28 within an allowable range in which head rubbing does not occur even when it comes into contact with the low-rigidity roll paper R. It is set to height. Note that the distance of 8 inches and 12 inches between the six protrusions 35 is the case where the leading edge Rf of the roll paper R having high rigidity comes into contact with the protrusions 35 as shown in FIG. The roll paper R having high rigidity does not contact the guide rib 53 positioned between the adjacent protrusions 35, but the leading end Rf of the roll paper R having low rigidity is the protrusion 35 as shown in FIG. In this case, the leading edge Rf of the low-rigidity roll paper R bends downward and comes into contact with the guide rib 53 between the adjacent protrusions 35.

  When the roll paper R is supplied to the recording material conveyance guide device 1B, whether the roll paper R is a roll paper R with high rigidity or a roll paper R with low rigidity. Regardless of whether the recording head 13 and the platen 28 are long types, the lift on the platen 28 is kept within an allowable range in which no head rubbing occurs, so that the roll paper R can be smoothly conveyed. And high-quality recording.

[Other embodiments]
The recording material conveyance guide apparatus 1 according to the present invention and the recording apparatus 100 provided with the recording material conveyance guide apparatus 1 are basically configured as described above. Of course, it is possible to change or omit the partial configuration within a range not departing from the above.

  For example, the conveyance guide device 1 for recording material according to the present invention is not limited to the roll paper R, and can of course be used for conveyance of sheet-shaped cut sheets. In the case of cut paper, curl wrinkles are generally not provided. Therefore, the cut paper is caused by the action of the “reverse sled” by the conveying roller 21 and the suction action by the suction hole 30 on the platen 28. It is smoothly transported in close contact with the platen 28.

  Further, when a part of the long roll paper R is cut out and used as a cut sheet paper, the curl folds are the same as those of the roll paper R, but the same as the roll paper R due to the action of the projection 35. In addition, floating on the platen 28 is prevented. The number of the protrusions 35 is not limited to six, and can be increased or decreased according to the width dimension of the roll paper R. The pitch between the protrusions 35 is not limited to the 8 inch pitch and the 12 inch pitch, but is rigid. The two action states shown in FIG. 13 using the properties of different roll papers R can be appropriately changed.

The perspective view which shows the external appearance of the inkjet printer at the time of main body cover mounting | wearing. The side view which shows the external appearance of the inkjet printer at the time of main body cover mounting | wearing. The perspective view which shows the inkjet printer at the time of main body cover removal. The side view which shows the inkjet printer at the time of body cover removal. FIG. 4 is a side sectional view showing the vicinity of a mounting portion of a recording material conveyance guide device. FIG. 3 is a plan view illustrating a conveyance guide device for a recording material according to the first embodiment. FIG. 3 is a front view illustrating a conveyance guide device for a recording material according to the first embodiment. AA sectional drawing in FIG. FIG. 6 is a plan view illustrating a recording material conveyance guide device according to a second embodiment. FIG. 6 is a front view illustrating a recording material conveyance guide device according to a second embodiment. BB sectional drawing in FIG. FIG. 6 is a perspective view illustrating a recording material conveyance guide device according to a second embodiment. FIG. 6 is a front view showing two types of operating states of a recording material due to differences in rigidity. FIG. 5 is a side sectional view showing the relationship between the rigidity of a recording material and the height of a guide member when using a short platen. FIG. 4 is a side sectional view showing the relationship between the rigidity of a recording material and the height of a guide member when using a long platen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 (Recording material) conveyance guide apparatus, 2 main body cover, 3 printer main body, 5 roll paper holder, 8 cartridge holder, 9 operation panel, 10 carriage, 11 conveyance guide plate, 13 recording head, 14 nozzle opening, 15 head Surface, 19 transport driving roller, 20 transport driven roller, 21 transport roller, 26 recording position, 28 platen, 29 platen rib, 30 suction hole, 31 guide member, 32 upper surface, 33 first guide surface, 34 second guide Surface, 35 Projection, 36 Upward inclined surface, 37 Upper flat surface, 38 Down inclined surface, 39 Lower flat surface, 40 Guide rib, 41 Suction hole, 42 Suction hole, 51 Guide member, 52 Upper surface, 53 Transport guide rib, 100 Inkjet printer (recording device), R roll paper (recording material), PG gap, A , B the width direction, L the length, S distance, the difference t height, X distance, the difference in u height

Claims (7)

A platen that defines a gap with the head surface of the recording head;
The platen is provided downstream of the recording material in the conveying direction, and the distance from the head surface is larger than the platen so as to prevent the recording material from floating on the upper part of the platen due to the curl at the tip of the recording material. A guide member having a guided surface,
The guide member has a guide surface on a portion of the recording material in the width direction on the platen with respect to another recording material having higher rigidity than the recording material in which the floating is prevented by the guide surface. A recording material conveyance guide device, wherein a protrusion is provided to prevent the other recording material from floating at a portion. In the conveyance guide apparatus of the to-be-recorded material of Claim 1,
The protrusions are provided at a plurality of locations in the width direction of the recording material,
The distance between the plurality of protrusions provided is such that when the plurality of protrusions come into contact with the recording material having lower rigidity than the other recording material having high rigidity, the recording material having low rigidity is bent. A conveyance guide device for recording material, wherein the conveyance guide device is set so as to be in contact with the guide surface between the protrusions. In the conveyance guide apparatus of the recording material according to claim 2,
The recording material conveyance guide device, wherein the protrusions are provided at positions that support the vicinity of both ends of a recording material of a fixed size expected to be used. In the conveyance guide apparatus of the recording material according to any one of claims 1 to 3,
A guide for conveying a recording material, wherein the guide surface of the guide member is constituted by top portions of conveyance guide ribs provided at a plurality of locations in the width direction of the recording material. In the conveyance guide apparatus of the recording material of any one of Claim 1 to 4,
A recording material conveyance guide device, wherein the platen is provided with a suction hole for air suction of the recording material passing over the platen. A recording head for performing recording by ejecting ink onto a recording surface of a recording material;
A recording apparatus comprising a recording material conveyance guide device for guiding a recording material and conveying a portion facing the head surface of the recording head,
6. A recording apparatus according to claim 1, wherein the recording material conveyance guide device is the recording material conveyance guide device according to any one of claims 1 to 5. A liquid ejecting head that performs liquid ejecting by ejecting liquid onto the liquid ejecting surface of the liquid ejecting material;
A liquid ejecting apparatus comprising: a liquid ejecting material conveyance guide device for guiding a liquid ejecting material and conveying a portion facing the head surface of the liquid ejecting head,
The conveyance guide device for the liquid injection material is:
A platen that defines a gap with the head surface of the liquid jet head;
The platen is provided downstream of the liquid ejecting material in the transport direction, and the distance from the head surface is set so that the liquid ejecting material on the upper part of the platen is prevented from floating due to the curl at the tip of the liquid ejecting recording material. A guide member having a guide surface formed larger,
The guide member has a guide surface with respect to another liquid jet material having higher rigidity than the liquid jet material whose floating is prevented by the guide surface at a part of the width of the liquid jet material. The liquid ejecting apparatus according to claim 1, further comprising: a protrusion that prevents the other liquid ejecting material from floating on the upper part of the platen.

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