JP6657439B2 - Media anti-collision surface for guiding and contacting media - Google Patents

Description

  The printing system includes a printhead and a media control member. The printhead provides a printing fluid on media located along a media path in a print zone. The media control member guides the media along the media path.

  Non-limiting examples are described in the following description, read in conjunction with the accompanying drawings, and do not limit the scope of the claims. The dimensions of the components and features shown in the figures are chosen primarily for convenience and clarity of presentation and do not necessarily follow a uniform scale. Reference is made to the accompanying drawings.

FIG. 3 is a block diagram illustrating a medium collision prevention device according to an example. FIG. 2 is a perspective view illustrating a medium collision prevention device according to an example. FIG. 3 is a side view illustrating a media control member coupled to a printhead and the media collision prevention device of FIG. 2 according to an example. FIG. 3 is a side view illustrating a media control member coupled to a printhead and the media collision prevention device of FIG. 2 according to an example. FIG. 3B is a bottom view illustrating a media control member and a media collision prevention device coupled to the printhead of FIG. 3A according to one example. FIG. 2 is a block diagram illustrating a print head according to an example. FIG. 6 is a side view showing the obstruction device in the printing position and the printhead of FIG. 5 according to an example. FIG. 6 is a side view of the obstruction device in the maintenance position and the printhead of FIG. 5 according to one example. FIG. 6B is a bottom view illustrating the obstruction device and printhead of FIG. 6A, according to an example. According to one example, a method for reducing media collision.

DETAILED DESCRIPTION A printing system, such as a page-wide array printer, includes a media control member and a printhead. The printhead can be a printbar, printhead assembly, inkjet printhead, or the like. The media control member guides the media along a media path, for example, toward and away from the print zone. The medium can include paper, fabric, and the like. The media control member can include an obstruction device, a roller, a belt, and the like. An obstruction device is a media control member of a printing system that receives and guides media along a media path. The obstruction device may include a star wheel for transporting the media. The print area may include an area between the printhead and the media path and adjacent the printhead and the media path. A print area is an area that receives media for a printhead, such as an inkjet printhead, to provide a printing fluid thereon.

  A media control member, such as an obstruction device, guides the media along a media path. For example, the retraction device can receive the printed media from the print area after the printhead has applied the printing fluid to the media and continue to guide it along the media path. However, at times, the printed media may form curls (curls) that include wrinkles caused only by the deposition of the printing fluid on the media. That is, a printing fluid, such as an aqueous ink, causes the media fibers on the wet side of the media to expand and the other media fibers on the dry side of the media to remain unchanged, thereby causing uneven expansion of the media. Is generated. Such uneven expansion may result in media curl. The media curl can straighten over time as the printing fluid water deposited on the media evaporates.

  Media collisions may be caused by uncontrolled media curl in the media path, for example, in the print zone. That is, the leading edge of the curled (curled) media may improperly catch individual edges and / or transitions in the print area downstream of the shroud. For example, the shroud can include a raised portion of the printhead to protect the nozzle surface. In duplex printing, media curl can be formed after the first side of the media has been printed. As a result, as the media is transported back to the print area to be printed by the printhead, the media curl can catch on turns and / or edges downstream of the shroud, causing media impact. Thus, components of the printing system may be damaged, throughput may be reduced, and / or media may be wasted.

  In an example, a media anticollision device can be used with a printhead. The print head is movable between a printing position and a maintenance position. The printhead includes a shroud. In the printing position, the printhead can move toward the media path. In the maintenance position, the printhead can move away from the media path so that the printhead is cleaned, serviced (maintained), and / or capped. The medium collision prevention device includes an interleave member. The interleaving members include a shroud compliant surface, a media control compliant surface, and a media anti-collision surface.

  The shroud-compatible surface is located proximate to and opposite the shroud, for example, depending on the media anti-collision device coupled to the printhead. The media control compliant surface is located proximate to and opposite the media control member at the printing position and away from the media control member at the maintenance position. The media anti-collision surface periodically contacts the media at the printing position and guides the media to the media control member. The control media compliant surface and the media anti-collision surface move with the printhead to a printing position and a maintenance position. Thus, the media anticollision device coupled to the printhead provides an integrated function for guiding media in the print zone in the media transport direction from the printhead to a media control member downstream. Thus, the collision of the medium is reduced. As a result, damaged printing system components, reduced processing power, and wasted media may be reduced.

  FIG. 1 is a block diagram illustrating a medium collision prevention device according to an example. In some examples, the media anticollision device 100 can be used with a printhead. The printhead may take the form of a printbar, printhead assembly, and / or inkjet printhead, or the like. Referring to FIG. 1, in some examples, the media anticollision device 100 includes an interleaving member 10 for coupling to a printhead. The printhead may include a shroud surrounding its nozzle surface. For example, the shroud can include a raised portion of the printhead to protect the nozzle surface. In some examples, the shroud may surround multiple nozzle surfaces in the form of a printhead die. The printhead can be movable between a printing position and a maintenance position. For example, at a printing position, the printhead can move toward the media path to print on the media. For example, in a maintenance position, the printhead can be moved away from the media path to clean, service (maintain), and / or cap the printhead.

  Referring to FIG. 1, in some examples, the interleaving member 10 includes a shroud compliant surface 11, a media control compliant surface 12, and a media anti-collision surface 13. The shroud-fitting surface 11 should be located close to and opposite the shroud. For example, shroud-fitting surface 11 may be maintained at a close distance from the shroud when interleave member 10 is coupled to a printhead. The media control compatible surface 12 should be located in the printing position, adjacent to the media control member and opposite the media control member. The media control compatible surface 12 should be located away from the media control member in the maintenance position. For example, the media control compliant surface 12 can move with the printhead between a printing position and a maintenance position when the interleaving member 10 is coupled to the printhead.

  Referring to FIG. 1, in some examples, the media anti-collision surface 13 guides the media to the media control member periodically, for example, in contact with the media at a printing location. That is, the leading end of the curled media may impinge on the media anticollision surface 13 without restraint and be directed downstream from the printhead toward the media control member in the media transport direction. For example, in duplex printing, media curl may be formed after the first side of the media has been printed. Thus, as the printed media is conveyed by the printhead back to the printing area with respect to its second side to be printed, media curl causes the leading edge of the media to contact the media anti-collision surface 13 It can be guided by the medium anti-collision surface 13. The media anticollision surface 13 can move with the printhead between a printing position and a maintenance position. Thus, the collision (crash) of the medium due to the medium curl can be reduced. Further, in the maintenance position, the media and the media anti-collision surface 13 can be cleaned with the printhead.

FIG. 2 is a perspective view showing a medium collision prevention device according to an example. 3A and 3B are side views showing the media control member coupled to the printhead and the media anticollision device of FIG. 2, respectively, in a print position and a maintenance position, according to an example. FIG. 4 is a bottom view illustrating a media control member and a media collision prevention device coupled to the printhead of FIG. 3A according to one example. In some examples, the media anticollision device 200 includes the interleaving member 10 as described above with respect to the media anticollision device 100 of FIG. With reference to FIGS. 2-4, in some instances, interleaving member is coupled to the print head 36 having a shroud 37 surrounding at least one nozzle surface 38, in the medium conveying direction d _m, downstream from the shroud 37 Are located.

  Referring to FIGS. 2-4, in some examples, the interleaving member 10 includes a shroud compliant surface 11, a media control compliant surface 12, and a media anti-collision surface 13. The shape of the shroud-fitting surface 11 can conform to the shape of the surface of the shroud 37 that is located opposite it. Such an adaptation may allow the shroud-adapting surface 11 and the shroud 37 to be placed closer together, thus reducing and / or eliminating the spacing between them. For example, the distance between the shroud-fitting surface 11 and the opposite shroud may be less than 0.5 mm. In some examples, the shape of the shroud-fitting surface 11 can be curved. For example, the shape of the shroud-compatible surface 11 can be concave, and the shape of the corresponding portion of the shroud 37 can be convex.

  Referring to FIGS. 2-4, in some examples, the shape of the media control conforming surface 12 may conform to the shape of the surface of the media control member 39 disposed opposite it. Such an adaptation may allow the media control adaptation surface 12 and the media control member 39 to be closely spaced from each other so that the spacing between them can be reduced and / or eliminated. That is, the media control compliant surface 12 conforms to the surface of the media control member 39 to position the interleave member 10 in the printing position proximate to and opposite the media control member 39 (FIG. 3A). ). For example, the distance between the media-compatible surface 12 and the opposite media control member 39 may be less than 2.0 mm. Further, the adaptation may allow the media control adaptation surface 12 to move away from the media control member 39 in the maintenance position (FIG. 3B). For example, in the maintenance position, the cleaning device 34 can clean the print head 36 and the medium collision prevention surface 13. The shape of the media control compliant surface 12 may include a plurality of recesses 20a that receive and correspond to the plurality of protrusions 39a on the surface of the media control member 39. The media control member 39 may include a plurality of star wheels 39b for guiding the media 35 along the media path 22.

Referring to FIGS. 2-4, in some examples, the media anti-collision surface 13 includes a planar area that is substantially parallel to the nozzle surface 38. For example, the media anti-collision surface 13 may be aligned with and substantially flush with the nozzle surface 38. Thus, the transition from the shroud 37 to the interleave member 10 can be smooth and unconstrained against the edges of the media that may periodically contact them. Further, advancement of the medium 35 may be in the medium conveying direction d _m, continuously as guided from the print head 36 along the media path 22 to the medium control member 39 to the downstream. Thus, position control of the media 35 on the shroud 38 and to the media control member 39 can be achieved. Also, media impact due to media curl in the print area may be reduced.

  FIG. 5 is a block diagram illustrating a print head according to an example. The print head 501 can be used with an obstruction device. The obstruction device is a media control member of the printing system that receives and guides media along the media path 22. The printing system can include a page wide array printer or the like. The print head 501 is movable between a printing position and a maintenance position. Referring to FIG. 5, in some examples, printhead 501 includes housing 50. Housing 50 includes a nozzle surface 55 and an expanded shroud 56 surrounding nozzle surface 55. Extended shroud 56 includes a media control compliant surface 52 and a media anti-collision surface 53. The media control compliant surface 52 conforms to the surface of the obstruction device to position the extended shroud 56 in the printing position, adjacent to and opposite the obstruction device.

  Thus, advancement of the media can be continued in the media transport direction such that it is guided downstream from the printhead 501 from the print zone to the obstruction device. Thus, control of the position of the media on the expansion shroud 56 and to the obstruction device may be achieved. Also, even with respect to duplex printing and media feed at the side of the paper (eg, in the width direction of the media), media impact due to media curl in the print area may also be reduced. That is, in double-sided printing, media curl can be formed after the first side of the media has been printed. Thus, when the media is transported back to the print area of the printhead to print on its second side, the media curl contacts and is guided by the media anticollision surface 53. Can be done. The media control compliant surface 52 conforms to the surface of the obstruction device to position the expansion shroud 56 away from the obstruction device in the maintenance position. The media anti-collision surface 53 includes a planar area for periodically contacting the media and guiding the media to the obturator. The media anti-collision surface 53 is located in the printing position, close to and facing the obstruction device. The media collision prevention surface 53 is positioned away from the obstruction device in the maintenance position.

  6A and 6B are side views, respectively, illustrating the obstruction device and the printhead of FIG. 5 at a printing position and a maintenance position, respectively, according to an example. FIG. 7 is a bottom view illustrating the obstruction device and printhead of FIG. 6A, according to one example. Printhead 501 includes housing 50 as described above in connection with FIG. Housing 50 includes a nozzle surface 55 and an expanded shroud 56 surrounding nozzle surface 55. Extended shroud 56 includes a media control compliant surface 52 and a media anti-collision surface 53. Referring to FIGS. 6A-7, in some examples, the shape of the media control conforming surface 52 may conform to the shape of the surface of the obstruction device positioned opposite it.

  Such an adaptation allows the media control adaptation surface 52 and the obstruction device 69 to be closely spaced from one another in the printing position (FIG. 6A), so that the spacing between them can be reduced and / or eliminated. Can be. For example, the distance between the media control compliant surface 52 and the obstruction device 69 can be less than 0.5 mm. Further, the adaptation may allow the media control adaptation surface 52 to move away from the obstruction device 69 in the maintenance position (FIG. 6B). For example, at the maintenance position, the cleaning device 64 can clean the print head 501. The shape of the media control compliant surface 52 may include a plurality of depressions 56a that receive and correspond to the plurality of protrusions 69a on the surface of the obstruction device 69. The obstruction device 69 may include a plurality of star wheels 69b for guiding the medium 35.

With reference to FIGS. 6A-7, in some examples, the media anti-collision surface 53 includes a planar region 53a (FIG. 5) that is substantially parallel to the nozzle surface 55. For example, the media anti-collision surface 53 may be aligned with and substantially flush with the nozzle surface 55. Thus, the transition from the expansion shroud 56 to the obstruction device 69 can be smooth and unconstrained against the edges of the media that may periodically contact them. Further, advancement of the medium 35 may be in the medium conveying direction d _m, continuously from the printhead 501 to be guided to the obstacle deflector 69 from the extended shroud 56 downstream. Thus, media impact due to media curl in the print area may also be reduced.

  FIG. 8 is a method for reducing medium collision according to an example. In some examples, the method of FIG. 8 may be implemented using the modules, assemblies, and the like described above in connection with FIGS. At block S810, the media is transported to a printing area. In some examples, transporting the media to the printing area provides printing fluid to a second surface of the media after a first surface of the media has previously received the printing fluid, such as in duplex printing. Transporting the media to a print area for printing. At block S812, printing fluid is provided by a printhead having a nozzle surface and a shroud surrounding the nozzle surface at the printing location onto the media in the printing area. For example, an inkjet printhead can eject ink onto a medium located in a printing area to form an image thereon.

  At block S814, a media control compliant surface of an interleaving member coupled to the printhead is positioned proximate to and opposite the media control member at the printing position and remote from the media control member at the maintenance position. You. For example, if a printhead coupled to the interleaving member moves toward the media path, a media control compatible surface is positioned near and aligned with the media control member. For example, if the printhead with the interleaving member moves away from the media path, the media control compliant surface moves away from the media control member. In some examples, the shape of the media control compatible surface includes a plurality of depressions that receive and correspond to the plurality of protrusions on the surface of the media control member.

  At block S816, the shroud-compatible surface of the interleaving member is maintained proximate to and opposite the shroud in the printing position and the maintenance position. For example, the interleaving member is mounted on the printhead such that there is a small, fixed amount of space between the shroud-compatible surface and the shroud.

  At block S818, the media anti-collision surface of the interleaving member is positioned proximate the nozzle surface at the print position to periodically contact the medium and guide the media to the media control member, and the nozzle surface at the maintenance position. Placed away from. For example, when a printhead coupled to the interleaving member moves toward the media path, a media anti-collision surface is positioned near and aligned with the nozzle surface. Alternatively, for example, when a printhead having an interleaving member moves away from the media path, the media anti-collision surface moves away from the nozzle surface. In some examples, a media collision prevention surface of an interleaving member is disposed proximate a nozzle surface at a printing position to periodically contact the medium and guide the medium to a media control member, and the nozzle is positioned at a maintenance position. Disposing away from the surface can include disposing the media anti-collision surface substantially parallel to the nozzle surface. For example, the media anti-collision surface may be aligned with and located in substantially the same plane as the nozzle surface.

  It should be understood that the flowchart of FIG. 8 illustrates example architectures, functions, and / or operations of the present disclosure. Although the flowchart of FIG. 8 illustrates a particular order of execution, the order of execution may differ from that shown. For example, the order of execution of two or more blocks may be rearranged relative to the order shown. Also, two or more blocks shown in succession in FIG. 8 may be executed simultaneously or partially simultaneously. All such variations are within the scope of the present disclosure.

  The present disclosure has been described with non-limiting detailed description of examples that are not intended to limit the scope of the broad inventive concept. It should be understood that features and / or operations described in connection with one example may be used with other examples, and not all examples may be shown in particular figures or with respect to one of the examples. It has all of the described features and / or operations. Variations on the described example will occur to those skilled in the art. Further, the terms "consisting," "including," "having," and their conjugations, as used in the present disclosure and / or the claims, "include, but are not necessarily limited to." Shall mean.

  It should be noted that some of the examples described above may include structures, operations or details of structures and operations that may not be essential to the broad inventive concept, which were described for illustrative purposes. . The structures and operations described herein are interchangeable, as is known in the art, by equivalents that perform the same function, even when the structure or operation is different. Accordingly, the scope of the broad inventive concept is limited only by the elements and limitations as used in the claims.

In the following, exemplary embodiments comprising combinations of various components of the present invention will be described.
1. A media collision prevention device that can be used with a printhead,
An interleaving member coupled to a printhead having a shroud surrounding the nozzle surface and movable between a printing position and a maintenance position, including a shroud compliant surface, a media control compliant surface, and a media anti-collision surface;
The shroud-fitting surface is disposed proximate to the shroud and opposite the shroud;
The media control compatible surface is disposed proximate to and opposite the media control member at the printing position, and is disposed away from the media control member at the maintenance position;
The media anticollision device wherein the media anticollision surface periodically contacts the media at the printing position to guide the media to the media control member.
2. 2. The medium collision prevention device according to claim 1, wherein the interleave member is disposed downstream from the shroud in a medium transport direction.
3. The shape of the shroud-compatible surface conforms to the shape of the surface of the shroud disposed opposite thereto, and the shape of the media control-compatible surface conforms to the shape of the surface of the media control member disposed opposite thereto. 2. The medium collision prevention device according to the above 1.
4. 4. The medium collision prevention device according to claim 3, wherein the shape of the shroud-compatible surface is curved.
5. 4. The media collision prevention device of claim 3, wherein the shape of the media control compatible surface includes a plurality of recesses that receive a plurality of protrusions on the surface of the media control member and correspond to the protrusions.
6. The media anticollision apparatus of claim 1, wherein the media anticollision surface is substantially planar and substantially parallel to the nozzle surface.
7. 2. The medium anti-collision apparatus of claim 1, wherein the medium anti-collision surface is aligned with and substantially flush with the nozzle surface.
8. A printhead movable between a printing position and a maintenance position, and usable with the obstruction device,
A housing including a nozzle surface and an expanded shroud surrounding the nozzle surface;
The extended shroud includes a media control compatible surface and a media anti-collision surface;
The media control compliant surface is configured to position the expansion shroud proximate to and opposite the obstruction device at the printing position and away from the obstruction device at the maintenance position. Fit on the surface of the obstruction device to place the expansion shroud,
The media anti-collision surface includes a planar area for periodically contacting the media and guiding the media to the obstruction device, wherein the media anti-collision surface is proximate to the obstruction device in the printing position. And a print head disposed opposite to the obstruction device and spaced apart from the obstruction device at the maintenance position.
9. 9. The printhead of claim 8, wherein the shape of the media control compatible surface includes a plurality of depressions that receive and correspond to a plurality of protrusions on the surface of the obstruction device.
10. The printhead of claim 8, wherein the planar area is substantially parallel to the nozzle surface at the printing location.
11. A method for reducing media collision, comprising:
Transporting the medium to a printing area,
A printhead having a nozzle surface and a shroud surrounding the nozzle surface for providing a printing fluid onto the media in the printing area at a printing location;
In a printing position, a media control compliant surface of an interleave member coupled to the printhead is positioned proximate to and opposite the media control member, and is positioned away from the media control member in a maintenance position. ,
In the printing position and the maintenance position, maintaining a shroud-compatible surface of the interleaving member proximate to the shroud and facing the shroud;
In the printing position, a medium collision prevention surface of the interleave member is disposed in close proximity to the nozzle surface for periodically contacting the medium and guiding the medium to the medium control member; A method comprising positioning away from a surface.
12. In the printing position, a medium collision prevention surface of the interleave member is disposed in close proximity to the nozzle surface for periodically contacting the medium and guiding the medium to the medium control member; Can be placed away from the surface,
12. The method of claim 11, further comprising arranging the media anti-collision surface substantially parallel to the nozzle surface.
13. In the printing position, a medium collision prevention surface of the interleave member is disposed in close proximity to the nozzle surface for periodically contacting the medium and guiding the medium to the medium control member; Can be placed away from the surface,
12. The method of claim 11, further comprising aligning and locating the media anti-collision surface with a substantially same plane as the nozzle surface.
14． Transporting the medium to a printing area,
13. The method of claim 13, further comprising: after the first side of the medium has previously received the printing fluid, transporting the medium to the printing area to provide the printing fluid on the second side of the medium. The described method.
15. 15. The method of claim 14, wherein the shape of the media control compatible surface includes a plurality of depressions that receive and correspond to a plurality of protrusions on the surface of the media control member.

Claims (15)

A media collision prevention device that can be used with a printhead,
A interleaving member fixedly coupled to the downstream side of the print head in the medium conveyance direction, the print head is to have a shroud surrounding the nozzle surface of and the printhead is disposed under the print head, The shroud includes a raised portion of the printhead to protect the nozzle surface, the interleaving member is movable with the printhead between a printing position and a maintenance position, and a shroud-compatible surface, media control. fit surface, and a medium anti-collision surface comprises interleaving member,
The shroud-compatible surface is disposed downstream of the shroud in a media transport direction, and is disposed proximate to the shroud and opposite the shroud;
The media control compliant surface is located at the printing position downstream of the shroud compliant surface in the media transport direction and opposite the shroud compliant surface and downstream of the media control compliant surface in the media transport direction. are arranged opposite proximate and the medium control member to the media control member to be disposed away from the medium control member in said maintenance position,
An anti-collision device, wherein the anti-collision surface disposed between the shroud-compatible surface and the media control-compatible surface guides the media to the media control member when in contact with the media at the printing position. . The shroud-fitting surface is spaced apart and proximate to the shroud, and the media control-fitting surface is spaced apart and in the printing position close to the media control member. Item 2. A medium collision prevention device according to Item 1 . The shape of the shroud-adapting surface is complementarily adapted to the shape of the surface of the shroud disposed opposite thereto, and the shape of the media control-adapting surface is the shape of the surface of the media control member disposed opposite thereto. compatible complementary to, medium collision avoidance apparatus according to claim 1 or 2. The medium collision prevention device according to claim 3 , wherein the shape of the shroud-compatible surface is concave, and the shape of the surface of the shroud is convex . 5. The media collision prevention device of claim 3 or 4 , wherein the shape of the media control compatible surface includes a plurality of depressions that receive and correspond to a plurality of protrusions on the surface of the media control member. The medium anticollision surface is substantially parallel to substantially a planar and the nozzle surface, medium collision avoidance device according to any one of claims 1-5. The medium anticollision surface is the is the nozzle surface substantially aligned with the same plane are arranged on the same plane, medium collision avoidance device according to any one of claims 1-6. The medium control member includes a star wheel for guiding the medium along a medium path, medium collision avoidance device according to any one of claims 1-7. A method for reducing media collision, comprising:
Transporting the medium to a printing area,
A printhead having a nozzle surface and a shroud surrounding the nozzle surface provides a printing fluid onto the media in the printing area at a printing location, the shroud being positioned below the printhead and providing a nozzle surface. Including a raised portion of the printhead for protection, wherein the printhead is movable between the printing position and a maintenance position;
In the printing position, the media control compatible surface of the interleaving member fixedly coupled to the print head downstream in the media transport direction and movable with the print head , the media control compatible surface downstream in the media transport direction. close to the arranged medium control member and is disposed opposite to the medium control member, disposed away from the medium control member in said maintenance position,
At the printing position and the maintenance position, maintaining a shroud-compatible surface of the interleaving member downstream of the shroud in the media transport direction and proximate to and facing the shroud, wherein the media control-compliant surface is Located in the media transport direction downstream of the shroud-compatible surface and opposite the shroud-compatible surface;
In the printing position, the media anti-collision surface of the interleaving member disposed between the media control compliant surface and the shroud compliant surface to guide the media to the media control member when contacting the media. A method comprising: positioning adjacent to a media path and remote from the media path at the maintenance location. The shroud-fitting surface is maintained closely spaced from the shroud, and the media control-fitting surface is spaced and closely spaced from the media control member at the printing location. Item 10. The method according to Item 9. The method of claim 9 or 10 , wherein the media anti-collision surface is substantially planar and substantially parallel to the nozzle surface. The method of any one of claims 9 to 11 , further comprising the media anti-collision surface being aligned with and disposed in a substantially same plane as the nozzle surface. Transporting the medium to a printing area,
After the first side of the medium took accept the printing fluid, further including the medium be conveyed to the printing area to provide a printing fluid on the second surface of the medium, according to claim 10 the method according to any one of 1-12. 14. The method of any of claims 9 to 13, wherein the shape of the shroud-compatible surface is concave and the shape of the surface of the shroud disposed opposite the shroud-compatible surface is convex. The shape of the medium control fit surface comprises a plurality of indentations corresponding to the plurality of protrusions to receive and the protruding portion of the surface of the medium control member, the method according to any one of claims 9-14 .

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