JP2010247961A - Recording device and transfer method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance recording position accuracy by a simple construction. <P>SOLUTION: A recording device transfers a recording medium with a lenticular lens, and performs recording on the recording medium. The recording device includes a guide supporting the recording medium and including a first projected portion which is brought into contact with the lenticular lens so as to guide the recording medium; and a guide roller rotating while contacting the recording medium during the transfer of the recording medium, and including a second projected portion having a different dimension from the first projected portion. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a recording apparatus and a conveying method.

  It is known that by arranging an image on the back side of the lenticular lens, a stereoscopic image or an image whose pattern changes according to the viewing angle can be obtained. When obtaining such an image, the image may be pasted on the back of the lenticular lens, but an image is also directly recorded on the back of the lenticular lens.

  The image on the back side of the lenticular lens (lenticular image) needs to be accurately matched to the lens arrangement of the lenticular lens. Therefore, even when an image is recorded on the back surface of the lenticular lens, it is necessary to align the lenticular lens and the image with high accuracy.

  Patent Document 1 discloses a technique for detecting the position of a lenticular lens using a sensor and recording at a predetermined position based on the detection result. Japanese Patent Application Laid-Open No. 2004-228561 discloses a technique for improving the accuracy of the recording position by taking measures to prevent the recording medium placed on the transfer tray from being displaced on the tray.

Japanese Patent No. 3471930 JP 2007-130769 A

In Patent Document 1, since a sensor for detecting the position of the lenticular lens is required, the cost of the apparatus increases. Further, in Patent Document 2, even if the positional deviation of the recording medium with respect to the conveyance tray can be suppressed, if the conveyance tray is conveyed in a state inclined with respect to the conveyance direction, the accuracy of the image recording position on the recording medium decreases. To do.
An object of the present invention is to improve the recording position accuracy with a simple configuration.

A main invention for achieving the above object is a guide for supporting a recording medium in a recording apparatus that conveys a recording medium having a lenticular lens and performs recording on the recording medium, and is in contact with the lenticular lens. And a guide roller that rotates while being in contact with the recording medium when transporting the recording medium, and is different in size from the first convex part. And a guide roller having a second convex portion.
Other features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

FIG. 1A is an enlarged cross-sectional view of a lens sheet. FIG. 1B is a view of the lens sheet as viewed from the lenticular lens side. FIG. 1C is an explanatory diagram of another lens sheet. FIG. 2 is a block diagram for explaining a schematic configuration of a recording apparatus. It is the perspective view which looked at the recording device from back. FIG. 4 is an enlarged view of a portion R shown in FIG. 3. FIG. 5 is an enlarged cross-sectional view of a contact portion between the first guide roller 31 and the lens sheet L. FIG. 6A is a top view of the lens sheet placed obliquely with respect to the guide 3. 6B is a cross-sectional view taken along the line AA in FIG. 6A. 6C is a cross-sectional view taken along line BB in FIG. 6A. FIG. 7A is a schematic explanatory diagram of the arrangement of the first guide rollers in FIG. 3. Drawing 7B is an explanatory view of arrangement of the 1st guide roller of the 1st modification. FIG. 7C is an explanatory diagram of the arrangement of the first guide rollers of the second modification. Drawing 7D is an explanatory view of arrangement of the 1st guide roller of the 3rd modification. FIG. 8A is an explanatory diagram of a cross-sectional shape of the engaging portion of the guide 3 of FIG. FIG. 8B is an explanatory diagram of a cross-sectional shape of the engaging portion of the first modification. FIG. 8C is an explanatory diagram of a cross-sectional shape of the engaging portion of the second modified example. FIG. 8D is an explanatory diagram of a cross-sectional shape of an engagement portion according to a third modification. FIG. 8E is an explanatory diagram of a cross-sectional shape of an engaging portion according to a fourth modification. FIG. 9A is a schematic explanatory diagram of the direction of the valley line of the engaging portion when the guide and the first guide roller of FIG. 3 are viewed from above. FIG. 9B is an enlarged explanatory view when the engaging portion 12 of the modification is viewed from above. It is a schematic explanatory drawing of the guide 30 and the 1st guide roller 31 of a 1st form. It is the perspective view which looked at the recording device of the modification of the 1st form from back. It is a schematic explanatory drawing of the modification of a 1st form. FIG. 13A is a top view of a state where a 60 lpi lens sheet L6 is conveyed. FIG. 13B is a top view of the state in which the 30 lpi lens sheet L3 is conveyed. It is a schematic explanatory drawing of a 2nd form. FIG. 15A is a top view of the state in which the 60 lpi lens sheet L6 is conveyed. FIG. 15B is a top view of the state in which the 30 lpi lens sheet L3 is conveyed. It is the schematic of the example of improvement of a 2nd form. FIG. 17A is a view of the first guide roller 31 of the improved example of the second embodiment as seen from the conveyance direction. FIG. 17B is a schematic explanatory diagram illustrating a state where a 30 lpi lens sheet L3 is conveyed. FIG. 17C is a schematic explanatory diagram illustrating a state where the 60 lpi lens sheet L6 is conveyed. FIG. 18A is an explanatory diagram of an end face of the guide 3 on the upstream side in the conveyance direction. FIG. 18B is an explanatory diagram of a modification of the end face shape of the guide 3. FIG. 19A is an explanatory diagram of the end shape of the engaging portion 12 of the guide 3. 19B to 19E are modified examples of the end shape of the convex portion of the engaging portion. FIG. 20A is an explanatory diagram of a modified example in which a convex portion is provided on the surface of the pressing roller. FIG. 20B is an explanatory diagram of another modified example in which a convex portion is provided on the surface of the pressing roller. It is explanatory drawing of the image for a test | inspection. It is explanatory drawing of the image for a test | inspection seen from the lenticular lens side.

  At least the following matters will become clear from the description of the present specification and the accompanying drawings.

  In a recording apparatus that conveys a recording medium having a lenticular lens and performs recording on the recording medium, the guide is a guide that supports the recording medium, and guides the recording medium by contacting the lenticular lens. A guide having a convex portion, and a guide roller that rotates while contacting the recording medium when the recording medium is conveyed, the guide roller having a second convex portion having a size different from that of the first convex portion; The recording apparatus having the above becomes clear. According to such a recording apparatus, it is possible to improve the recording position accuracy for a plurality of types of recording media with a simple configuration.

  Depending on the lens pitch of the lenticular lens of the recording medium, the position of the first convex portion of the guide and the position of the second convex portion of the guide roller in a direction intersecting the conveyance direction of the recording medium are different. May be. Thereby, recording media having different lens pitches can be conveyed.

  The guide further includes a third convex portion having the same size as the second convex portion at the same position as the second convex portion of the guide roller, and the guide roller includes the first convex portion of the guide. You may further have the 4th convex part of the same magnitude | size as the said 1st convex part in the same position as the position of a part. Thereby, it is possible to further improve the recording position accuracy with respect to recording media having different lens pitches.

  In this recording apparatus, it is desirable that the transport position of the recording medium differs depending on the position of the first convex portion and the position of the second convex portion and the lens pitch of the lenticular lens of the recording medium. . Thereby, recording media having different lens pitches can be conveyed.

  It is desirable that the first convex portion has a higher shape than the second convex portion, and the second convex portions are arranged at an interval that is an integral multiple of the interval between the first convex portions. Thereby, when the recording medium having the first lens pitch is conveyed, the crest of the lens can be prevented from coming into contact with the second convex portion.

  When transporting a recording medium having a lenticular lens having a first lens pitch, the first convex portion comes into contact with the recording medium, and the second convex portion is located in a concave portion of the lenticular lens, and the first lens pitch When a recording medium having a lenticular lens having a shorter second lens pitch is conveyed, it is preferable that the second convex portion is in contact with the recording medium and the first convex portion is not in contact with the recording medium. Thereby, recording media having different lens pitches can be conveyed.

  It is desirable to further have a pressing member that presses the recording medium against the first convex portion or the second convex portion. Thereby, the restriction | limiting of the movement of a recording medium can be strengthened.

  Further, the first convex portion provided on the guide for supporting the recording medium is brought into contact with the lenticular lens to guide the recording medium having the lenticular lens in the transport direction, and has a size different from that of the first convex portion. A conveying method is characterized in that at least one of conveying the recording medium while rotating the guide roller having the second convex portion and bringing the second convex portion into contact with the lenticular lens is apparent. It becomes. According to such a conveying method, the recording position accuracy can be improved with a simple configuration.

=== Lens sheet ===
First, a lens sheet that is a recording medium having a lenticular lens will be described.
FIG. 1A is an enlarged cross-sectional view of a lens sheet. FIG. 1B is a view of the lens sheet as viewed from the lenticular lens side. FIG. 1C is an explanatory diagram of another lens sheet.

The lens sheet L includes a lenticular lens 7 and an image forming layer 8.
The lenticular lens 7 is a resin optical member (cylindrical lens array) in which a large number of cylindrical lenses 13 are arranged in the sheet surface direction. In the following description, the generatrix direction of the cylindrical lens 13 is referred to as “x direction”, and the direction in which the cylindrical lenses 13 are arranged is referred to as “y direction” (x and y are lowercase letters). Further, the most projecting portion (peak) of each cylindrical lens 13 is called a “mountain”, a concave portion between the cylindrical lenses is called a “valley”, and a continuous line of mountains is called a “ridge line”, which is parallel to the ridge line. The direction may be referred to as the “bus line direction”.

  The image forming layer 8 includes an ink transmission layer 8A and an ink absorption layer 8B. The ink transmission layer 8A is located outside the lens sheet L, and the ink absorption layer 8B is located between the ink transmission layer 8A and the lenticular lens 7. When an image is recorded by the inkjet recording method from the image forming layer 8 side of the lens sheet L, the ink passes through the ink transmission layer 8A and is absorbed by the ink absorption layer 8B, and the image can be visually recognized through the lenticular lens 7.

  The image forming layer 8 of the lens sheet L may be omitted. For example, if an ultraviolet curable ink is used, an image can be recorded directly on the back surface of the lenticular lens 7 without the ink transmission layer 8A and the ink absorption layer 8B.

  The recording apparatus of this embodiment described below conveys the lens sheet L along the generatrix direction (x direction) of the lenticular lens 7 using the shape of the lenticular lens 7. Specifically, a convex portion is formed on a guide (described later) and a guide roller (described later) along the conveyance direction, and the lens sheet L is slid while a valley between cylindrical lenses is engaged with the convex portion. Therefore, the conveyance direction of the recording apparatus coincides with the generatrix direction (x direction) of the lens.

  As a result, each cylindrical lens 13 of the lenticular lens 7 is positioned at a predetermined position at the recording position of the recording apparatus (position where the head ejects ink to form an image). As a result, an image can be recorded with high accuracy in accordance with the lens arrangement of the lenticular lens 7.

  In FIG. 1B, the direction of the side of the lens sheet L coincides with the x direction and the y direction. However, as shown in FIG. 1C, the direction of the side of the lens sheet L may not match the x direction or the y direction depending on the type of the lens sheet L or the manufacturing accuracy of the lens sheet L. The recording apparatus of the present embodiment also matches the conveyance direction of the recording apparatus and the generatrix direction (x direction) of the lens apparatus L with respect to the lens sheet L as shown in FIG. Images can be recorded with high accuracy.

  Also in the case as shown in FIG. 1B, the crest of the cylindrical lens 13 may be located on the side of the lens sheet L, or the trough may be located. According to the recording apparatus of the present embodiment, each cylindrical lens 13 of the lenticular lens 7 is positioned at a predetermined position regardless of whether the crest or trough of the cylindrical lens 13 is located on the side of the lens sheet L. become.

=== Overview of Recording Apparatus ===
FIG. 2 is a block diagram for explaining a schematic configuration of the recording apparatus. FIG. 3 is a perspective view of the recording apparatus as viewed from the rear. In FIG. 3, the transport direction of the recording apparatus 100 is the X direction, the main scanning direction of the head is the Y direction, and the vertical direction is the Z direction (X, Y, and Z are capital letters). As will be described later, the X direction (the conveyance direction of the recording apparatus 100) and the x direction (the generatrix direction of the lens of the lens sheet L) coincide with each other.

  The computer 110 which is an external device generates an image to be recorded on the recording device 100 and transmits recording data to the recording device 100. When recording on the lens sheet L, the computer 110 generates a recording image by processing and synthesizing a plurality of images designated by the user according to the lens pitch or the like, and records the images. The recording data is transmitted to the recording apparatus 100. Note that the recording apparatus 100 may have a function of generating recording data.

  The recording apparatus 100 performs recording on a medium based on the recording data received from the computer 110. When recording on the lens sheet L, an image is recorded on the back surface of the lens sheet L based on recording data generated according to the lens pitch.

  The recording apparatus 100 includes a housing 2, a guide 3, a transport roller 4 and a paper discharge roller 5, a head 6, a first guide roller 31, and a second guide roller 32. The housing 2 is an exterior body of the recording apparatus 100. The guide 3 supports the lens sheet L and guides the lens sheet L in the transport direction. The transport roller 4 and the paper discharge roller 5 transport the lens sheet L supplied in the housing 2 in the transport direction. The first guide roller 31 and the second guide roller 32 convey the lens sheet L in the conveyance direction while restricting the movement of the lens sheet L in a predetermined direction. The head 6 performs recording on the lens sheet L.

  The housing 2 is provided with a paper feed opening 9 and a paper discharge opening 10. The lens sheet L supplied from the paper feed opening 9 is transported in the transport direction by the transport roller 4 and the paper discharge roller 5, and is recorded by the head 6. To be discharged.

  The guide 3 has a rectangular plate-like body as a whole. The guide 3 has a length extending from a position protruding from the paper feed opening 9 to a position in front of the conveyance roller 4 in the conveyance direction. Further, with respect to the Y direction (or the width direction of the lens sheet L), there is a width that can support the entire width of the lens sheet L.

  The sheet feeding roller 24 supplies the lens sheet L placed on the guide 3 into the recording apparatus 100. The paper feed roller 24 is rotationally driven by a paper feed motor (not shown). The lens sheet L is guided between the transport roller 4 and the first guide roller 31 by paper feeding by the paper feeding roller 24.

  A transport roller 4 and a paper discharge roller 5 are disposed before and after the head 6. The transport roller 4 is a roller for transporting the lens sheet L supplied from the paper feed opening 9 to a recording position (a position where the head 6 performs recording). The paper discharge roller 5 is a roller for discharging the lens sheet L recorded at the recording position to the paper discharge opening 10. The transport roller 4 is rotationally driven by a transport motor 16, and the paper discharge roller 5 is rotationally driven by a paper discharge motor 17.

  The first guide roller 31 is provided to face the transport roller 4. When the conveyance roller 4 is rotationally driven with the lens sheet L sandwiched between the first guide roller 31 and the conveyance roller 4, the first guide roller 31 is driven to rotate and convey the lens sheet L in the conveyance direction. The configuration of the first guide roller 31 will be described later.

  The second guide roller 32 is provided to face the paper discharge roller. When the paper discharge roller 5 is rotationally driven with the lens sheet L sandwiched between the second guide roller 32 and the paper discharge roller 5, the second guide roller 32 is driven to rotate, and the lens sheet L is discharged in the transport direction. Make paper. The shape of the second guide roller 32 is the same as that of the first guide roller 31.

  The head 6 is an ink jet recording head that ejects ink, and is attached to the lower surface of the carriage 18. A platen 23 for supporting the lens sheet L is provided at a position facing the head 6. The lens sheet L conveyed to the recording position by the conveying roller 4 is supported by the platen 23 at the recording position.

  The carriage 18 is supported by a carriage guide 19 provided along the Y direction so as to be movable in the Y direction, and is attached to a timing belt 21 driven by a carriage motor 20. Therefore, when the timing belt 21 is rotationally driven by the carriage motor 20, the head 6 can reciprocate in the Y direction together with the carriage 18.

  The controller controls the conveyance of the lens sheet L in the conveyance direction by controlling the conveyance motor 16 and the paper discharge roller 17. The controller controls the movement of the head 6 by controlling the carriage motor 20. The controller controls ink ejection from the head 6. As a result, the controller can record an image at a desired position on the lens sheet L. When recording an image on the lens sheet L, the lens sheet L is placed on the guide 3 so that the image forming layer 8 side faces the head 6 and the lenticular lens 7 side contacts the guide 3. As a result, the head 6 performs recording on the image forming layer 8, and a recorded material is created in which the image recorded on the image forming layer 8 can be viewed from the lenticular lens 7 side.

<Guide structure>
4 is an enlarged view of a portion R shown in FIG.
The guide 3 includes a plate-like substrate 11 and an engaging portion 12. The engaging portion 12 has the same shape as the lenticular lens 7 and is provided on the substrate 11. That is, the linear protrusions 14 having the same shape as the cylindrical lens 13 are arranged at the same pitch as the lens pitch. For this reason, the engaging part 12 may be formed by diverting the lenticular lens 7. Since the shape of the engaging portion 12 is the same as that of the lenticular lens 7, the most protruding portion of the convex portion 14 of the engaging portion 12 is referred to as “mountain”, and the concave portion between the convex portions 14 is defined here. Sometimes called a “valley”, a line of mountains is called a “ridge line”, and a direction parallel to the ridge line is sometimes called a “bus line direction”.

  The position of the guide 3 is adjusted so that the generatrix direction of the projection 14 of the filaments coincides with the conveyance direction (X direction) of the recording apparatus 100 and is attached to the recording apparatus 100. Moreover, the convex part 14 of a filament is arranged in parallel over the width | variety wider than the width | variety of the lens sheet L. As shown in FIG.

  Since the engaging portion 12 has the same shape as the lenticular lens 7, the cylindrical lens 13 of the lenticular lens 7 and the convex portion of the guide 3 when the lens sheet L is placed on the guide 3 with the lenticular lens 7 side down. 14, the convex portion 14 of the guide 3 is positioned between the peaks of the cylindrical lens 13, and the peak of the cylindrical lens 13 is positioned between the convex portions 14 and 14 of the guide 3. As a result, the movement of the lens sheet L in the Y direction with respect to the guide 3 is limited, and the lens sheet L is positioned in the Y direction. On the other hand, the lens sheet L can be conveyed along the conveyance direction which is the generatrix direction of the convex portion 14 of the guide 3 because there is no restriction in the generatrix direction of the convex portion 14 (the vertical direction in FIG. 4, the X direction). is there. That is, the guide 3 guides the lens sheet L in the transport direction while restricting movement in the Y direction.

<Configuration of guide roller>
FIG. 5 is an enlarged cross-sectional view of a contact portion between the first guide roller 31 and the lens sheet L.
Since the lens sheet L is sandwiched between the first guide roller 31 and the transport roller 4, the transport roller 4 is originally positioned on the lens sheet L. However, the transport roller 4 is simplified for simplicity of explanation. Is omitted. In the present embodiment, as will be described later, the convex portion 14 of the guide 3 and the convex portion 104 of the first guide roller 31 are different in size. Here, for convenience of explanation, the convex portion 104 is shown in the same size as the convex portion 14 of FIG.

  The first guide roller 31 includes a main shaft 101 and an engaging portion 102 formed on the cylindrical surface of the main shaft 101. The cross-sectional shape of the engaging portion 102 is substantially the same cross-sectional shape as the lenticular lens 7. That is, the convex portions 104 having substantially the same cross-sectional shape as the cylindrical lens 13 are arranged at the same pitch as the lens pitch. Each convex portion 104 is formed along the circumferential direction of the main shaft 101. In the following description, as in the case of the guide 3, the most protruding portion of the convex portion 104 of the engaging portion 102 is referred to as “mountain”, and the concave portion between the convex portions 104 is referred to as “valley”. is there.

  The position of the first guide roller 31 is adjusted so that the valley line coincides with the transport direction (X direction) of the recording apparatus 100 when viewed from above, and is attached to the recording apparatus 100. Further, the convex portions 104 of the first guide roller 31 are juxtaposed over a width wider than the width of the lens sheet L. The engaging portion 102 may be a separate member from the main shaft 101 or may be integrally formed with the main shaft 101.

  Since the cross-sectional shape of the engaging portion 102 is the same as the cross-sectional shape of the lenticular lens 7, when the lens sheet L is conveyed by the first guide roller 31 with the lenticular lens 7 side down, the cylindrical lens of the lenticular lens 7 is used. 13 and the convex portion 104 of the first guide roller 31 mesh with each other, the convex portion 104 of the first guide roller 31 is located between the peaks of the cylindrical lens 13, and the peaks of the cylindrical lens 13 are located on the first guide roller 31. It is located between the convex part 104 and the convex part 104. As a result, the movement of the lens sheet L in the Y direction with respect to the first guide roller 31 is limited, and the lens sheet L is positioned in the Y direction. On the other hand, since there is no restriction on the movement of the lens sheet L in the conveyance direction (the vertical direction in FIG. 5, the X direction), and the first guide roller 31 is driven to rotate along with the rotation of the conveyance roller 4, the lens sheet L Is movable along the transport direction. Thereby, the 1st guide roller 31 can guide the lens sheet L to a conveyance direction, restraining the movement to a Y direction.

  The second guide roller 32 has the same configuration as the first guide roller 31. Here, the description of the configuration of the second guide roller 32 is omitted. Similarly to the first guide roller 31, the second guide roller 32 can also guide the lens sheet L in the transport direction while restraining movement in the Y direction. Since the second guide roller 32 is provided downstream of the head 6 in the conveyance direction, the lens sheet L is restrained from moving in the Y direction even after the rear end of the lens sheet L has passed the conveyance roller 4. It is guided in the transport direction.

<Preventing skew by pressing force>
The lens sheet L may be placed obliquely with respect to the guide 3. That is, the lens sheet L may be placed on the guide 3 in a state where the conveyance direction (X direction) of the recording apparatus 100 and the generatrix direction (x direction) of the lens of the lens sheet L do not match. In such a state, the lens sheet L is not positioned in the Y direction. However, even in such a case, the lens sheet L can be prevented from being skewed and conveyed by conveying the lens sheet L while pressing it against the guide 3.

  Prepare two lens sheets. At first, in the state where the generatrix directions of the two lens sheets are crossed (the crests of the lenses are not meshed), the lens surfaces face each other and overlap each other. When the two lens sheets are slid (rubbed together), the generatrix directions of the two lens sheets coincide with each other, and the crests of the lenses engage with each other. The fact that the recording apparatus 100 can prevent the skew feeding by conveying the lens sheet L while pressing it against the guide 3 is based on this phenomenon.

  FIG. 6A is a top view of the lens sheet placed obliquely with respect to the guide 3. 6B is a cross-sectional view taken along the line AA in FIG. 6A. 6C is a cross-sectional view taken along line BB in FIG. 6A. In FIG. 6A, the positions of the guide 3 and the peak of the lens are indicated by dotted lines, the positions of the valleys are indicated by solid lines, the guide 3 is indicated by thick lines, and the lenses are indicated by thin lines. In order to simplify the description, the number of peaks and valleys is reduced.

  When the lens sheet L is placed obliquely with respect to the guide 3 as shown in FIG. 6A, there is a place where the peaks of the lens sheet L and the guide 3 are in contact with each other as shown in FIG. 6B. Therefore, the distance between the lens sheet L and the guide 3 is wider than the state of FIG. For this reason, as shown to FIG. 6C, the part from which the peak of the lens sheet L leaves | separates from the guide 3 arises. When a pressing force acts on the position of the BB cross section in the state of FIG. 6C, the lens sheet L bends so that the crest of the lens sheet L enters and contacts the trough of the guide 3 as shown in FIG. As a result, when a pressing force acts on the position of the BB cross section, the movement of the lens sheet L in the left-right direction (Y direction) is restricted at the position of the BB cross section.

  When the lens sheet L is transported in the transport direction from that state, the position where the pressing force acts deviates from the position of the BB cross section. As a result, the crest of the lens sheet L enters the trough of the guide 3 as shown in FIG. At this time, the state as shown in FIG. 4 is maintained at the position of the BB cross section, and the state as shown in FIG. 4 is attempted even at a position shifted from the BB cross section. At a position where the peak of the lens sheet L is in contact with the peak of the guide 3 (see FIGS. 6A and 6B), the peak of the lens sheet L slides along the curved surface of the guide 3 (in this case, the peak of the lens sheet L is Slide to the right). As a result, the lens sheet L rotates in the direction in which the skew is eliminated (counterclockwise in FIG. 6A), and the skew is corrected (the bus line direction of the lens sheet L and the bus bar direction of the guide 3 coincide).

  Once the skew is corrected and the crests of the lens sheet L and the crests of the guide 3 are engaged with each other, the movement of the lens sheet L is no longer restricted, and no force acting on the lens sheet L in the rotation direction is generated. . Further, when the lens sheet L receives a pressing force in a state where the crests of the lens sheet L and the crests of the guide 3 are engaged with each other, there is no gap between the lens sheet L and the guide 3 and the lens sheet L with respect to the guide 3 is not opened. Since the movement of is limited only in the X direction, skewing is continuously prevented.

  In FIG. 3, the paper feed roller 24 conveys the lens sheet L against the guide 3 by a spring element (a spring element 24 </ b> A in FIGS. 7A to 7D described later). Accordingly, the skew of the lens sheet L is prevented, and the X direction (the conveyance direction of the recording apparatus 100) and the x direction (the generatrix direction of the lens of the lens sheet L) coincide. In FIG. 3, the lens sheet L is pressed against the first guide roller 31 and the second guide roller 32 after passing through the guide 3. For this reason, even if the rear end of the lens sheet L passes the position of the paper feed roller 24, the skew of the lens sheet L is continuously prevented, and the X direction and the x direction coincide.

<Arrangement of guide rollers>
FIG. 7A is a schematic explanatory diagram of the arrangement of the first guide rollers in FIG. 3. The first guide roller 31 described above was provided at a position facing the transport roller 4. However, the arrangement of the guide rollers is not limited to this position. Hereinafter, modified examples of the arrangement of the guide rollers will be described.

  Drawing 7B is an explanatory view of arrangement of the 1st guide roller of the 1st modification. In the first modification, the first guide roller 31 is also used as the transport roller by rotationally driving the first guide roller 31 with a transport motor. A driven roller that rotates following the rotation of the first guide roller 31 is provided above the first guide roller 31. If the first guide roller 31 is rotationally driven by a motor as in the first modified example, when the upper end of the lens sheet L enters between the first guide roller 31 and the driven roller, the valley of the lens sheet L Is easily guided to the mountain of the first guide roller 31, and the sheet is less likely to be jammed.

  FIG. 7C is an explanatory diagram of the arrangement of the first guide rollers of the second modification. In the second modification, the first guide roller 31 and the transport roller 4 are provided at different positions. A driven roller is provided to face the first guide roller 31, and another driven roller is provided to face the transport roller 4. The first guide roller 31 and its driven roller are accompanied by the conveyance of the lens sheet L while guiding the movement in the Y direction of the lens sheet L conveyed by the paper feed roller 24 and the conveyance roller 4 while restricting the movement in the Y direction. Followed rotation. Even in such a configuration, the first guide roller 31 can guide the lens sheet L in the transport direction while restraining the movement in the Y direction. However, compared with the case of FIG. 7B, the apparatus of FIG.

  Drawing 7D is an explanatory view of arrangement of the 1st guide roller of the 3rd modification. In the third modification, the first guide roller 31 is not disposed on the upstream side in the transport direction with respect to the transport roller 4 as in the second modification, but the first guide roller 31 is downstream in the transport direction with respect to the transport roller 4. Arranged on the side.

  The first guide roller 31 described here is provided downstream in the transport direction from the guide 3, but the first guide roller 31 is further upstream in the transport direction than the guide 3 as described later. It may be provided.

<About the shape of the engaging part (1)>
FIG. 8A is an explanatory diagram of a cross-sectional shape of the engaging portion of the guide 3 of FIG. The aforementioned guide 3 had the same shape as the lenticular lens 7. However, the engaging portion 12 of the guide 3 is not limited to such a shape. Hereinafter, modified examples of the shape of the engaging portion 12 of the guide 3 will be described. Note that any of the following engaging portions 12 has a convex portion 14 along the transport direction, as in FIG. 8A. Although the engaging portion 12 of the guide 3 will be described here, the engaging portion 102 of the first guide roller 31 can also have the same shape.

  FIG. 8B is an explanatory diagram of a cross-sectional shape of the engaging portion of the first modification. The cross-sectional shape of the engaging portion 12 of the first modification is the opposite shape of the lenticular lens 7. In other words, the convex portion 14 of the engaging portion 12 of the first modification has a shape that fits the concave portion of the lenticular lens 7. For this reason, in FIG. 8A, the center of curvature of the convex portion 14 was on the inner side (lower side) of the engaging portion 12, but the center of curvature of the convex portion 14 of the engaging portion 12 of the first modified example is the engaging portion 12. Outside (upper). With such an engaging portion 12 of the first modified example, the restraint in the Y direction of the lens sheet L can be strengthened.

  FIG. 8C is an explanatory diagram of a cross-sectional shape of the engaging portion of the second modified example. The engaging part 12 of the second modified example does not have a curved surface, and the cross section of the convex part 14 is triangular. Even with such a shape, the lens sheet L can be restrained in the Y direction.

  FIG. 8D is an explanatory diagram of a cross-sectional shape of an engagement portion according to a third modification. Compared with FIGS. 8A to 8C, the engagement portion 12 of the third modification has a double spacing between the convex portions 14. Thus, even if the interval between the convex portions 14 is an integral multiple of the lens pitch p, the convex portion 14 of the guide 3 is located in the valley of the cylindrical lens 13 when the lens sheet L is placed on the guide 3. The movement of the sheet L in the Y direction with respect to the guide 3 is limited, and the sheet L is positioned in the Y direction.

  FIG. 8E is an explanatory diagram of a cross-sectional shape of an engaging portion according to a fourth modification. As for the engaging part 12 of a 3rd modification, the cross section of the convex part 14 is a rectangular shape. Even with such a shape, the lens sheet L can be restrained in the Y direction. However, since the engagement portion 12 in FIGS. 8A to 8D is less likely to form a gap with the lens than the engagement portion 12 in FIG. 8E, the positioning accuracy is higher.

<About the shape of the engaging part (2)>
FIG. 9A is a schematic explanatory diagram of the direction of the valley line of the engaging portion when the guide and the first guide roller of FIG. 3 are viewed from above. (In practice, the line interval is the same as the lens pitch or an integer multiple thereof, but for the sake of explanation, the line interval is different from the actual one.) The direction of the valley line (or the direction of the convex portion) when viewed from above is the transport direction (X direction). Further, as already described, the convex portion 104 of the engaging portion 102 of the first guide roller 31 is formed along the circumferential direction of the main shaft 101, and also in this case, the valley line when viewed from above is shown. The direction (or the direction of the convex portion 104) is the transport direction (X direction).

FIG. 9B is an enlarged explanatory view when the engaging portion 12 of the modification is viewed from above. In the engaging portion 12 of this modification, a plurality of protrusions 34 are formed in the circumferential direction, and the plurality of protrusions 34 formed in the circumferential direction are arranged in the Y direction at the same interval as the lens pitch p. . With the guide 3 having such an engaging portion 12, the lens sheet L can be conveyed with the generatrix direction of the lens sheet L as the X direction as in the guide 3 of FIG. 9A. Note that the engaging portion 102 of the first guide roller 31 can have the same shape.

=== Conveying multiple types of lens sheets ===
In the above description, it is assumed that the lens arrangement of the lenticular lens 7 of the lens sheet L is one type (for example, a lens pitch of 30 lpi). However, it is desirable that the number of recordable lens sheets L is large. In the following description, a lens sheet L (hereinafter also referred to as a lens sheet L3) having a lenticular lens 7 of 30 lpi (lens per inch) and a lens sheet L (hereinafter also referred to as a lens sheet L6) having a lenticular lens 7 of 60 lpi. Both will be recorded.

<Reference Example 1>
The guide 3 is provided with a convex portion 14 equivalent to 60 lpi, while the first guide roller 31 does not have the convex portion 104.
In this case, the 60 lpi lens sheet L6 is appropriately positioned by the guide 3. However, when the 30 lpi lens sheet L3 is conveyed, the convex portion 14 of the guide 3 may hit the mountain of the lens sheet L, and high-precision positioning may not be performed. The same applies to the case in which the arrangement of the convex portions is reversed (that is, the first guide roller 31 has the convex portion 104 equivalent to 60 lpi and the guide 3 has no convex portion 14).

<Reference Example 2>
The guide 3 is provided with a convex portion 14 corresponding to 30 lpi, while the first guide roller 31 does not have the convex portion 104.
In this case, the 30 lpi lens sheet L3 is appropriately positioned by the guide 3. In this case, since the interval (1/30 inch) between the convex portions of the guide 3 is an integral multiple of the lens pitch (1/60) of the lens sheet L6, a certain degree of positioning is possible with respect to the lens sheet L6. It is. However, the 60 lpi lens sheet L can be positioned with higher accuracy if it is guided by a convex portion having a shape that fits the 60 lpi lens sheet L. The same applies to the case where the arrangement of the protrusions is reversed (that is, the protrusion 104 corresponding to 30 lpi is disposed on the guide roller 31 and the protrusion 3 is not present on the guide 3).
Therefore, in the present embodiment, convex portions having different sizes are formed on both the guide 3 and the first guide roller 31.

<First form>
(1-1)
FIG. 10 is a schematic explanatory diagram of the guide 30 and the first guide roller 31 according to the first embodiment.

As shown in FIG. 10, in the first embodiment, the guide 3 is provided with a projection 14 equivalent to 60 lpi, and the first guide roller 31 is provided with a projection 104 equivalent to 30 lpi. The convex portion 14 is disposed on the entire upper surface of the guide 3 (contact surface with the lens sheet L), and the convex portion 104 is disposed on the entire circumference of the first guide roller 31.
When the 30 lpi lens sheet L3 is conveyed, even if the guide 3 cannot be positioned with high accuracy, it is positioned with high accuracy by the first guide roller 31.
When the 60 lpi lens sheet L6 is conveyed, the guide sheet 3 is positioned with high accuracy. Further, since the lens sheet is already positioned with high accuracy by the guide 3, the first guide roller 31 can also perform positioning with high accuracy.
Thus, any lens sheet can be guided in the transport direction while restraining movement in the Y direction.

(Improved example of 1-1)
If the convex portion 14 corresponding to 30 lpi is arranged on the guide 3 and the convex portions 104 equivalent to 60 lpi are arranged on the first guide roller 31 at an interval of 60 lpi, the guide will be used when transporting the lens sheet L3 of 30 lpi. There is a possibility that the convex portion 104 of the first guide roller 31 hits the crest of the lens sheet positioned in step 3, and there is a possibility that highly accurate positioning cannot be performed as in the above configuration.
For this reason, when the convex part 14 equivalent to 30 lpi is arrange | positioned at the guide 3, and the convex part 104 equivalent to 60 lpi is arrange | positioned at the 1st guide roller 31, the space | interval of the convex part 104 of the magnitude | size equivalent to 60 lpi of a guide roller. Should be 1/30 inch apart. By doing so, the 30 lpi lens sheet L3 can also be positioned with high accuracy.

(1-2)
FIG. 11 is a perspective view of the recording apparatus according to the modified example (1-2) of the first embodiment as viewed from the rear. FIG. 12 is a schematic explanatory diagram of a modification of the first embodiment.

  In order to set the mounting position of the lens sheet L in the Y direction, the guide 3 is provided with a first side end pressing portion 51A and a second side end pressing portion 51B. The first side end pressing portion 51A and the second side end pressing portion 51B are independently movable in the Y direction. If the width of the lens sheet L in the Y direction is determined in advance, the lens sheet L can be moved in the Y direction together with the distance between the first side end pressing portion 51A and the second side end pressing portion 51B fixed. good.

  A convex portion 104 is provided on one end side (left side in FIG. 12) of the first guide controller 31 in the Y direction. A convex portion 14 is provided on the other end side in the Y direction of the guide 3 (on the right side in FIG. 12). The convex portion 14 is a convex portion (a convex portion corresponding to 30 lpi) that matches the shape of the 30 lpi lenticular lens 7. The convex portion 104 is a convex portion (a convex portion corresponding to 60 lpi) that matches the shape of the 60 lpi lenticular lens 7.

  The concave portion between the cylindrical lenses of the 30 lpi lenticular lens is deeper than the concave portion between the cylindrical lenses of the 60 lpi lenticular lens. For this reason, the convex part 14 is a mountain higher than the convex part 104. In addition, when the lenticular lens of 30 lpi and the convex part 14 are engaged, the binding force for the movement in the Y direction is larger than that of 60 lpi, so the number of convex parts 14 is larger than the number of convex parts 104. It may be less.

  FIG. 13A is a top view of a state where a 60 lpi lens sheet L6 is conveyed. When the lens sheet L6 having the 60 lpi lenticular lens 7 is conveyed, the lens sheet L6 is conveyed toward the left side in the drawing. Thereby, the convex part 104 on the left side of the first guide roller 31 can guide the lens sheet L6 in the transport direction while restraining the movement in the Y direction. Since the lens sheet L6 is on the left side, the convex portion 14 on the right side of the guide 3 does not contact the lens sheet L6.

  FIG. 13B is a top view of the state in which the 30 lpi lens sheet L3 is conveyed. When the lens sheet L3 having the 30 lpi lenticular lens 7 is conveyed, the lens sheet L3 is conveyed toward the right side in the drawing. Thereby, the convex part 14 on the right side of the guide 3 can guide the lens sheet L3 in the transport direction while restraining the movement in the Y direction. Since the lens sheet L3 is on the right side, the convex portion 104 on the left side of the first guide roller 31 does not contact the lens sheet L3.

  Thus, any lens sheet can be guided in the transport direction while restraining movement in the Y direction.

  In order to change the position in the Y direction during conveyance of the lens sheet according to the lens pitch of the lens sheet L, a pressing unit moving mechanism that automatically moves the first side end pressing unit 51A and the second side end pressing unit 51B. It may be provided. In this case, the controller may control the pressing portion moving mechanism according to the type of the lens sheet to set the positions of the first side end pressing portion 51A and the second side end pressing portion 51B.

  As described above, since the convex portion 14 of the guide 3 and the convex portion 104 of the first guide roller 31 are different in size, both the lens sheet L3 and the lens sheet L6 can be positioned with high accuracy. The recording position accuracy can be increased. Moreover, in this 1st form, since only 1 type of convex part is formed in each member, manufacture of each member is easy. (In 2nd form mentioned later, since each member has two types of convex parts, it is manufactured. costly).

<Second form>
In the first embodiment, each member (guide 3 and first guide roller 31) is provided with one type of convex portion. On the other hand, in the second embodiment, each member is provided with two types of convex portions.

FIG. 14 is a schematic explanatory diagram of the second embodiment.
Also in the second embodiment, as in the modification (1-2) of the first embodiment, the guide 3 is provided with a first side end pressing portion 51A and a second side end pressing portion 51B. The first side end pressing portion 51A and the second side end pressing portion 51B are independently movable in the Y direction. If the width of the lens sheet L in the Y direction is determined in advance, the lens sheet L can be moved in the Y direction together with the distance between the first side end pressing portion 51A and the second side end pressing portion 51B fixed. good.

A convex portion 14A is provided on one end side (left side in the drawing) of the guide 3 in the Y direction, and a convex portion 14B is provided on the other end side (right side in the drawing) of the guide 3 in the Y direction. Further, a convex portion 104A is provided on one end side of the first guide controller 31 in the Y direction, and a convex portion 104B is provided on the other end side of the first guide controller 31 in the Y direction.
The convex portion 14A and the convex portion 104A are convex portions that match the shape of the 60 lpi lenticular lens 7. Further, the convex portion 14B and the convex portion 104B are convex portions that match the shape of the 30 lpi lenticular lens 7.
The concave portion between the cylindrical lenses of the 30 lpi lenticular lens is deeper than the concave portion between the cylindrical lenses of the 60 lpi lenticular lens. For this reason, the convex part 14B is a mountain higher than the convex part 14A. Moreover, the convex part 104B is a mountain higher than the convex part 104A. Note that when the 30 lpi lenticular lens and the convex portion 14 are engaged with each other, since the restraining force with respect to movement in the Y direction is larger than that of the 60 lpi lens, the number of the convex portions 14B and the convex portions 104B is 14A. The number may be smaller than the number of the convex portions 104A.

  FIG. 15A is a top view of the state in which the 60 lpi lens sheet L6 is conveyed. When the lens sheet L6 having the 60 lpi lenticular lens 7 is conveyed, the lens sheet L6 is conveyed toward the left side in the drawing. Accordingly, the convex portion 14A on the left side of the guide 3 in the drawing and the convex portion 104A on the left side of the first guide roller 31 can guide the lens sheet L6 in the transport direction while restraining movement in the Y direction. Since the lens sheet L6 is on the left side, the convex portion 1B on the right side of the guide 3 and the 104B on the right side of the first guide roller 31 do not contact the lens sheet L6.

  FIG. 15B is a top view of the state in which the 30 lpi lens sheet L3 is conveyed. When the lens sheet L3 having the 30 lpi lenticular lens 7 is conveyed, the lens sheet L3 is conveyed toward the right side in the drawing. Thereby, the convex part 14B on the right side of the guide 3 in the drawing and the convex part 104B on the right side of the first guide controller 31 can guide the lens sheet L3 in the transport direction while restraining the movement in the Y direction. Since the lens sheet L3 is on the right side, the convex portion 14A on the left side of the guide 3 and the convex portion 104A on the left side of the first guide roller 31 do not contact the lens sheet L3.

  Thus, also in the second embodiment, any lens sheet can be guided in the transport direction while restraining movement in the Y direction.

(Example of improvement of the second embodiment)
FIG. 16 is a schematic view of an improved example of the second embodiment. Moreover, FIG. 17A is the figure which looked at the 1st guide roller 31 of the modified example of 2nd form from the conveyance direction. FIG. 17B is a schematic explanatory diagram illustrating a state where a 30 lpi lens sheet L3 is conveyed. FIG. 17C is a schematic explanatory diagram illustrating a state where the 60 lpi lens sheet L6 is conveyed. In addition, in each convex part of the guide 3 and the 1st guide roller 31 shown in FIG. 16, a thick line shows the shape which fits the lenticular lens 7 of 30 lpi (it is comparatively high), and a thin line shows the lenticular lens 7 of 60 lpi. It is a shape that fits (relatively low mountain).

  A convex portion 104B that matches the shape of the 30 lpi lenticular lens 7 is provided on the outer side (the right side in FIG. 16) of one end of the first guide roller 31 in the Y direction. As already described, the convex portion 104B has a relatively high mountain. The interval between the convex portions 104B is 1/30 inch in order to match the shape of the 30 lpi lenticular lens 7 (see FIG. 17A).

  Further, a convex portion 14B that matches the shape of the 30 lpi lenticular lens 7 is provided on the outer side (right side in FIG. 16) of one end of the guide 3 in the Y direction. The convex portion 14B has the same shape as the convex portion 104B, and the interval between the convex portions 14B is 1/30 inch in order to match the shape of the 30 lpi lenticular lens 7.

  On the inner side (left side in FIG. 16) of the convex portion 104B of the first guide roller 31, a convex portion 104A that matches the shape of the 60 lpi lenticular lens 7 is provided. As already described, the convex portion 104A is lower than the convex portion 104B. The interval between the convex portions 104A is not 1/60 inch, but 1/30 inch (see FIG. 17A). That is, the interval between the convex portions 14A is wider than the lens pitch of the 60 lpi lenticular lens 7. The interval between the convex portions 14A may be an integer multiple of 1/30 inch.

  Further, on the inner side (left side in FIG. 16) of the convex portion 14B of the guide 3, a convex portion 14A that matches the shape of the 60 lpi lenticular lens 7 is provided. The convex portion 14A has the same shape as the convex portion 104A, and the interval between the convex portions 14A is 1/30 inch as in the convex portion 104A.

  The distance between the rightmost convex part 14A (convex part 104A) and the leftmost convex part 14B (convex part 104B) is an integer multiple of the lens pitch of the 60 lpi lenticular lens 7 and 30 lpi lenticular lens. The interval is an integral multiple of the lens pitch. Here, the interval is 1/30 inch, but in practice it may be wider.

  In FIG. 16, the number of convex portions 14B (convex portions 104B) on the right side is smaller than the number of convex portions 14A (convex portions 104A). This is because when the concave portion of the 30 lpi lenticular lens is deep and the convex portion 14B (convex portion 104B) is formed high, when the 30 lpi lenticular lens and the convex portion 14B (convex portion 104B) are engaged, This is because the restraining force with respect to movement in the Y direction is larger than that of 60 lpi.

  When the lens sheet L3 having the 30 lpi lenticular lens 7 is conveyed, the lens sheet L3 is conveyed toward the right side in the drawing (FIG. 17B). Note that FIG. 17B is a view of the first guide roller 31 as viewed from the transport direction, but the same applies when the lens sheet L3 is on the guide 3. Thereby, the convex portion 104B on the right side of the first guide roller 31 (and the convex portion 14B on the right side of the guide 3) is engaged with the lenticular lens 7, and the lens sheet L3 is restrained from moving in the Y direction. Can guide in the transport direction.

  In the modified example of the second form, unlike the second form described above, the convex part 104A (the convex part 14A) may come into contact with the lens sheet L3. However, since the convex portion 104A (convex portion 14A) is arranged at the same interval as the lens pitch of the 30 lpi lenticular lens 7, the convex portion 104A (convex portion 14A) is in contact with the crest of the cylindrical lens of the lenticular lens 7. do not do. Further, since the concave portion of the 30 lpi lenticular lens is deep, there is no problem even if the convex portion 104A (the convex portion 14A) is present at the concave portion of the 30 lpi lenticular lens. For this reason, the lens sheet L3 can be guided in the transport direction while restraining movement in the Y direction.

  When the lens sheet L6 having the 60 lpi lenticular lens 7 is transported, the lens sheet L6 is transported toward the left side so that the right end of the lens sheet L6 is on the left side of the convex portion 104B (FIG. 17C). Note that FIG. 17C is a view of the first guide roller 31 as viewed from the transport direction, but the same applies when the lens sheet L3 is on the guide 3. Therefore, the convex portion 104A (the convex portion 14A) is attached to the lenticular lens 7 in a state where the convex portion 104B on the right side of the first guide roller 31 (and the convex portion 14B on the right side of the guide 3) does not contact the lens sheet L6. The lens sheet L6 can be engaged and guided in the transport direction while restraining movement in the Y direction.

The convex portions 14A and the convex portions 104A are formed at an interval of 1/30 inch, which is an integral multiple of 1/60 inch. For this reason, all the convex portions 14A and the convex portions 104A can engage with the concave portions of the 60 lpi lenticular lens 7.
According to this improved example, it is not necessary to change the conveyance position of the lens sheet in the Y direction.

<Third form>
In the embodiment described above, the first guide roller 31 is provided on the downstream side of the guide 3 in the transport direction. However, the first guide roller 31 may be provided on the upstream side of the guide 3 in the transport direction.
However, in this case, the lens sheet L is transported from the upstream side in the transport direction with respect to the guide 3, and the lens sheet L may be jammed when the lens sheet L is transported to the guide 3.

  FIG. 18A is an explanatory diagram of an end face of the guide 3 on the upstream side in the conveyance direction. As shown in the figure, when the normal direction of the end surface 3A of the guide 3 is the transport direction (X direction), when the lens sheet L is transported toward the guide 3, the upper end of the lens sheet L is the end surface 3A of the guide 3. It is easy to clog the sheet.

FIG. 18B is an explanatory diagram of a modification of the end face shape of the guide 3. In the modification, the end surface of the guide 3 is inclined so that the normal direction of the end surface 3B on the upstream side in the conveyance direction of the guide 3 has a Z-direction component. Accordingly, when the upper end of the lens sheet L hits the end surface 3B of the guide 3, the upper end of the lens sheet L is guided upward, and the sheet is less likely to be jammed.
Note that the modification of FIG. 18B is advantageous when the lens sheet L is transported from the upstream side in the transport direction with respect to the guide 3 as in the third embodiment.

  FIG. 19A is an explanatory diagram of the end shape of the engaging portion 12 of the guide 3. As shown in the drawing, when the cross-sectional shape of the engaging portion 12 is the same up to the end portion, when the lens sheet L is conveyed toward the guide 3, the upper end of the lens sheet L is the convex portion 14 of the engaging portion 12. It is easy to clog the sheet.

Therefore, as shown in FIGS. 19B to 19E, the convex portion 14 of the engaging portion 12 may be made smaller toward the upstream side in the transport direction. Thereby, the end of the convex portion 14 of the engaging portion 12 can easily enter between the crests of the conveyed lens sheet L, guide the crest of the lens sheet L to the trough of the engaging portion 12, and the lens. It becomes easy to guide the valley of the sheet L to the mountain of the engaging portion 12.
In the case where the lens sheet L is transported from the upstream side in the transport direction as compared with the guide 3 as in the third embodiment, the modified examples of FIGS. 19B to 19E are advantageous.

=== Variation of pressure roller ===
In the above-described embodiment, the transport roller 4 or the paper feed roller 24 is a pressing roller for pressing the lens sheet L against the guide roller 31 or the guide 3 (in the following description, the transport roller 4 and the paper feed roller 24). May be collectively referred to as a “pressing roller”).

<About arrangement>
In the recording apparatus 100 of FIG. 3, the pressing roller is longer than the width of the lens sheet L. However, the pressing roller may be shorter than the width of the lens sheet L.
For example, since the sheet feeding roller 24 presses the lens sheet L against the guide 3 in order to prevent the lens sheet L from skewing, the sheet feeding roller 24 is provided to face at least the position where the convex portion 14 of the guide 3 is formed. That's fine. The same applies to the transport roller 4.

<About surface shape>
Concavities and convexities may be formed on the surface of the aforementioned pressing roller.
FIG. 20A is an explanatory diagram of a modified example in which a convex portion is provided on the surface of the pressing roller. The convex portion 44 of the paper feed roller 24 is provided at a position facing the convex portion 14 of the guide 3. For this reason, the interval between the convex portions 44 of the paper feed roller 24 is the same interval as the lens pitch p or an integer multiple thereof. Since the convex portion 44 of the paper feed roller 24 is in a position facing the convex portion 14 of the guide 3, when the pressing force is applied at the position of the BB cross section of FIG. It is strongly pushed toward the valley of No. 3, and the skew is easily corrected.

  FIG. 20B is an explanatory diagram of another modified example in which a convex portion is provided on the surface of the pressing roller. The convex portion 44 of the paper feed roller 24 in FIG. 20B is provided at a position facing between the convex portions 14 of the guide 3. 6C entering the valley of the guide 3 from the state as shown in FIG. 6C is an opportunity for correcting the skew of the lens sheet L, the position of the convex portion 44 of the paper feed roller 24 is more than that of FIG. 20A. FIG. 20B is more advantageous.

In this example, the paper feed roller 24 has been described, but the same applies to the transport roller 4.
In addition, when providing the convex part 44 in a press roller, it is good to use elastic materials, such as rubber | gum, so that the convex part 44 of a press roller may change easily.

=== Adjustment of position of guide and first guide roller ===
The guide 3 and the first guide roller 31 need to be attached to the recording apparatus 100 by adjusting the direction of the convex portion 14 along the transport direction. Here, an adjustment method when the guide 3 is attached will be described. The adjustment method when the first guide roller 31 is attached can be similarly performed.

FIG. 21 is an explanatory diagram of an inspection image.
The inspection image CM is an image having a plurality of lines Ln. The center line LA of the plurality of lines Ln is a line along the conveyance direction on the image data. The lines Ln on the left and right of the line LA of the inspection image CM are lines in which the slopes are accumulated in order by a certain angle. For example, the line Ln on the right side of the line LA is set so that the inclination angle is increased in order in 0.01 degree clockwise in the conveyance direction on the image data. Further, the line Ln on the left side of the line LA is set so that the inclination angle is sequentially increased in increments of 0.01 degrees counterclockwise in the conveyance direction on the image data.

  After the guide 3 is attached to the recording apparatus 100, the recording apparatus 100 records the inspection image CM on the lens sheet L in order to inspect whether the generatrix direction of the convex portion 14 of the guide 3 is along the transport direction. . If the recording apparatus 100 is ideally assembled, the line LA is recorded on the lens sheet L in accordance with the conveyance direction. That is, if the recording apparatus 100 is ideally assembled, the line LA should be recorded along the generatrix direction of the lens sheet L. After the recording apparatus 100 records the inspection image on the lens sheet L, the inspector inspects the inspection image from the lenticular lens 7 side.

  FIG. 22 is an explanatory diagram of an inspection image viewed from the lenticular lens side. Of the plurality of lines Ln, the line Ln recorded so as to coincide with the generatrix direction of the lenticular lens 7 can be visually recognized as one continuous line. On the other hand, the line Ln that is not recorded along the generatrix direction of the lenticular lens 7 is recorded across the plurality of cylindrical lenses 13, and thus becomes a discontinuously divided line such as a line LC. If the recording apparatus 100 is ideally assembled, the line LA should be visually recognized as one line. On the other hand, if the generatrix direction of the convex portion 14 of the guide 3 is inclined with respect to the transport direction, the line LA is visually recognized as a divided line, and another line LB corresponding to the inclination angle is regarded as one line. Visible.

  Therefore, the inspector identifies a line that can be visually recognized, and adjusts the mounting angle of the guide 3 by an angle corresponding to the line. For example, in this case, the mounting angle of the guide 3 is adjusted so as to be inclined by 0.03 degrees with respect to the current mounting angle of the guide 3. Thereby, the guide 3 is attached to the recording apparatus 100 so that the convex part 14 of the guide 3 follows the conveyance direction.

  In the above description, the inspector visually recognizes the inspection image recorded on the lens sheet L, but the present invention is not limited to this. For example, the scanner may read an inspection image recorded on the lens sheet L, and the mounting angle of the guide 3 may be determined based on the read result.

=== Variation of Paper Feed ===
In the above-described embodiment, the lens sheet L is supplied from the back side of the recording apparatus 100. However, it is not limited to this.
For example, in a recording apparatus provided with an ASF (auto sheet feeder), the lens sheet L may be supplied from the upper side of the recording apparatus 100. In a recording apparatus having a paper feed cassette that can be opened and closed from the front side of the recording apparatus, the lens sheet L may be supplied from the lower side of the recording apparatus.
In any case, since the lens sheet L is conveyed while being guided by the guide 3 or the first guide roller 31 before the head 6 performs recording on the lens sheet L, the lens sheet L is accurately conveyed in the conveyance direction. Can be transported.

=== Other Embodiments ===
Although a recording apparatus using a head has been described as an embodiment, the above embodiment is for facilitating the understanding of the present invention and is not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and it is needless to say that the present invention includes equivalents thereof.

2 housing, 3 guide, 3A, 3B end face,
4 transport rollers, 5 paper discharge rollers, 6 heads,
7 Lenticular lens, 8 Image forming layer,
8A ink transmission layer, 8B ink absorption layer,
9 Paper feed opening, 10 Paper discharge opening, 11 Substrate,
12 engaging portion, 13 cylindrical lens,
14, 14A, 14B convex part,
16 transport motor, 17 discharge motor, 18 carriage,
19 Carriage guide, 20 Carriage motor,
21 Timing belt, 23 Platen,
24 paper feed roller, 24A spring element,
31 1st guide roller, 32 2nd guide roller, 34 protrusion,
51A first side end pressing portion, 51B second side end pressing portion,
100 recording device, 101 main shaft, 102 engaging portion,
104, 104A, 104B convex part,
110 computers,
CM inspection image, Ln line,
L Lens sheet

Claims (8)

In a recording apparatus that conveys a recording medium having a lenticular lens and performs recording on the recording medium,
A guide for supporting the recording medium, the guide having a first convex portion for guiding the recording medium by contacting the lenticular lens;
A recording apparatus comprising: a guide roller that rotates while being in contact with the recording medium when the recording medium is conveyed, the guide roller having a second convex portion having a size different from that of the first convex portion. The recording apparatus according to claim 1,
The position of the first convex portion of the guide and the position of the second convex portion of the guide roller in a direction intersecting the conveyance direction of the recording medium are different according to the lens pitch of the lenticular lens of the recording medium. A recording apparatus. The recording apparatus according to claim 2,
The guide further includes a third convex portion having the same size as the second convex portion at the same position as the second convex portion of the guide roller,
The recording apparatus, wherein the guide roller further includes a fourth convex portion having the same size as the first convex portion at the same position as the first convex portion of the guide. The recording apparatus according to claim 2 or 3,
The recording apparatus according to claim 1, wherein a transport position of the recording medium differs according to a position of the first convex part and a position of the second convex part, and a lens pitch of the lenticular lens of the recording medium. The recording apparatus according to any one of claims 1 to 4,
The first convex portion has a higher shape than the second convex portion,
The recording apparatus according to claim 1, wherein the second convex portions are arranged at an interval that is an integral multiple of the interval between the first convex portions. The recording apparatus according to claim 5,
When transporting a recording medium having a lenticular lens having a first lens pitch, the first convex portion is in contact with the recording medium, and the second convex portion is located in a concave portion of the lenticular lens,
When conveying a recording medium having a lenticular lens having a second lens pitch shorter than the first lens pitch, the second convex portion contacts the recording medium, and the first convex portion does not contact the recording medium. A recording apparatus. The recording apparatus according to any one of claims 1 to 6,
The recording apparatus further comprising a pressing member that presses the recording medium against the first convex portion or the second convex portion. Guide the recording medium having the lenticular lens in the transport direction by bringing the first convex portion provided on the guide for supporting the recording medium into contact with the lenticular lens, and a first projection having a size different from that of the first convex portion. Conveying the recording medium while rotating a guide roller having two convex portions and bringing the second convex portions into contact with the lenticular lens;
A conveying method characterized by performing at least one of the following.

Images