JP2008006705A - Printing press - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printing press which enables a precise transfer of a pattern having a necessary film thickness. <P>SOLUTION: This printing press is provided with: a plate cylinder 14 on the outer peripheral surface of which a printing plate 17 is mounted; a conveying table on which a substrate 16 is mounted; a moving means which moves the conveying table under the plate cylinder 14 in a direction perpendicular to the core of the plate cylinder 14; and a regulating mechanism which forms a gap being smaller than the film thickness of an application liquid formed on the printing plate 17, between the surface of the printing plate 17 mounted on the plate cylinder 14 and the surface of the substrate 16, on the basis of the position of the lower end of the plate cylinder 14, the position of the top of the conveying table, the thickness of the printing plate 17 and the thickness of the substrate 16. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a printing apparatus that transfers a coating liquid pattern formed on a surface of a printing plate onto a substrate.

For example, in the manufacturing process of a substrate such as a color filter, a glass substrate for liquid crystal, a flexible liquid crystal substrate, or electronic paper, a pattern forming material, a photoresist, or a pattern of a coating liquid such as ink is applied to these substrates. A transfer printing device is used. In such a printing apparatus, the pattern of the coating liquid is transferred onto the substrate by bringing the printing plate or the like on which the pattern of the coating liquid is formed into contact with the substrate at a constant pressure. (For example, refer to Patent Document 1).
JP 2002-71932 A

  In this way, when a configuration is adopted in which the pattern of the coating liquid is transferred onto the substrate by bringing the printing plate or the like on which the pattern of the coating liquid is formed into contact with the substrate at a constant pressure, the pattern periphery There arises a problem that the outer portion of the pattern is thickened and the central portion of the pattern is missing. In addition, when printing with a large film thickness is performed on a liquid crystal substrate using a relief printing plate, if the pattern is excessively thickened, there is a problem that the ink protrudes outside the bank.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a printing apparatus capable of accurately transferring a pattern having a required film thickness.

  The invention described in claim 1 is a printing apparatus for transferring a coating liquid pattern formed on the surface of a printing plate onto a substrate, a plate cylinder for mounting the printing plate on an outer peripheral surface thereof, and a substrate mounted on the plate cylinder. Moving means for moving relative to the plate cylinder in a direction perpendicular to the axis; detection means for detecting a distance between the surface of the printing plate mounted on the plate cylinder and the surface of the substrate; The pattern of the coating liquid formed on the surface of the printing plate is adjusted on the substrate by adjusting the distance between the surface of the printing plate mounted on the plate cylinder and the surface of the substrate based on the detection value by the detecting means. An adjustment mechanism that forms a minute gap between the surface of the printing plate mounted on the plate cylinder and the surface of the substrate when transferring is provided.

  According to a second aspect of the present invention, in the first aspect of the present invention, the minute interval formed between the surface of the printing plate mounted on the plate cylinder and the surface of the substrate is on the printing plate. It is smaller than the film thickness of the coating solution formed on the surface.

  According to a third aspect of the present invention, there is provided a printing apparatus for transferring a coating liquid pattern formed on a surface of a printing plate onto a substrate, a plate cylinder for mounting the printing plate on an outer peripheral surface thereof, and a transport table for mounting the substrate. Moving means for moving the transport table in a direction perpendicular to the axis of the plate cylinder below the plate cylinder, a lower end position of the plate cylinder, a position of an upper surface of the transport table, and the printing plate Based on the detection means for detecting the thickness of the substrate and the thickness of the substrate, the lower end position of the plate cylinder detected by the detection means, the position of the upper surface of the transport table, the thickness of the printing plate and the thickness of the substrate, When the pattern of the coating liquid formed on the surface of the printing plate was transferred onto the substrate, it was formed on the printing plate between the surface of the printing plate mounted on the plate cylinder and the surface of the substrate. Set the interval smaller than the coating film thickness. Printing apparatus characterized by comprising an adjusting mechanism for forming.

  According to the first to third aspects of the invention, it becomes possible to accurately transfer a pattern having a required film thickness.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, the basic configuration of the printing apparatus according to the present invention will be described. FIG. 1 is a schematic view showing a main part of a printing apparatus according to the present invention.

  This printing apparatus transfers a coating liquid pattern formed on the surface of a printing plate 17 onto a substrate 16, a plate cylinder 14 on which the printing plate 17 is mounted on its outer peripheral surface, and an axial core of the plate cylinder. The coating liquid supply roller 12 is disposed in parallel with the axis of the coating plate 14 and supplies the coating liquid to the surface of the printing plate 17. The coating liquid supply roller 12 has a slit extending in the axial direction of the coating liquid supply roller 12. A slit nozzle 11 for supplying the coating liquid, a cleaning mechanism 13 for the coating liquid supply roller 12, and a cleaning mechanism 15 for the plate cylinder 14 are provided. The slit nozzle 11, the coating liquid supply roller 12, and the cleaning mechanism 13 constitute a coating liquid supply mechanism 10.

  The slit nozzle 11 and the surface of the coating liquid supply roller 12 are separated by a slight distance d1. Further, the surface of the coating liquid supply roller 12 and the surface of the printing plate 17 are separated by a distance d2 that is smaller than the film thickness of the coating liquid. Furthermore, the surface of the printing plate 17 and the surface of the substrate 16 are separated by a distance d3 that is smaller than the film thickness of the coating liquid. These distances d1, d2, and d3 can be adjusted by an adjusting mechanism described later.

  In this printing apparatus, the coating liquid is supplied from the slit nozzle 11 to the surface of the coating liquid supply roller 12, and a thin film of the coating liquid is formed on the surface of the coating liquid supply roller 12. Then, the coating liquid is transferred to the pattern P on the printing plate 17 to form a coating liquid pattern. The pattern of the coating solution is transferred onto the substrate 16.

  The surface of the coating liquid supply roller 12 after the coating liquid is transferred to the pattern P on the printing plate 17 is cleaned by the cleaning mechanism 13. This is because, when the coating liquid remains on the surface of the coating liquid supply roller 12, when the coating liquid is further supplied from the slit nozzle 11 to the surface of the coating liquid supply roller 12, the thickness of the coating liquid increases. This is because it becomes non-uniform and it becomes impossible to transfer a pattern having a required film thickness.

  Further, the surface of the printing plate 17 after the coating liquid is transferred to the substrate 16 is cleaned by the cleaning mechanism 15. This is also because the film thickness of the coating liquid on the printing plate 17 becomes non-uniform, and it becomes impossible to transfer a pattern having a required film thickness. The cleaning mechanism 15 is movable between the end of the apparatus and a position close to the plate cylinder 14.

  Next, a specific configuration of the above-described printing apparatus will be described. 2 and 3 are perspective views of the printing apparatus according to the present invention as seen from different directions. 4 and 5 are enlarged perspective views showing a part of the printing apparatus according to the present invention. In these drawings, the above-described cleaning mechanisms 13 and 15 are not shown.

  The printing apparatus includes a base 20, a lifting table 21 on which the slit nozzle 11, the coating liquid supply roller 12, and the plate cylinder 14 are mounted, and a transport table that reciprocates on the base 20 while supporting the substrate 16. 22.

  As shown in FIGS. 2 to 4, a pair of linear motion guides 32 and a linear motor 31 disposed between the linear motion guides 32 are disposed on the base 20. The linear motion guide 32 and the linear motor 31 are arranged so that the longitudinal direction thereof is perpendicular to the axis of the plate cylinder 14. Further, the transport table 22 is connected to the linear motion guide 32 and the linear motor 31. For this reason, the conveyance table 22 is driven by the linear motor 31 and reciprocates in a direction perpendicular to the axis of the plate cylinder 14.

  As described above, the distance d1 between the slit nozzle 11 and the surface of the coating liquid supply roller 12, the distance d2 between the surface of the coating liquid supply roller 12 and the surface of the printing plate 17, and the surface of the printing plate 17 and the surface of the substrate 16 These distances d3 can be adjusted by an adjusting mechanism. Hereinafter, this adjustment mechanism will be described.

  First, an adjustment mechanism according to the present invention for adjusting the distance d3 between the surface of the printing plate 17 and the surface of the substrate 16 will be described.

  As shown in FIGS. 1 and 2, a pair of left and right support side plates 24 connected to the base 20 are provided with a pair of guide members 25. The elevating table 21 is connected to the guide member 25 and can be moved up and down along the guide member 25. The elevating table 21 is connected to a ball screw 27 (see FIG. 2) that rotates by receiving driving of a pair of left and right motors 26. For this reason, the slit nozzle 11, the coating liquid supply roller 12, and the plate cylinder 14 are moved up and down together with the lifting table 21 under the drive of the motor 26. And the raising / lowering position is detected by the non-contact displacement meter 23 (refer FIG.2, FIG.4, FIG.5), such as a pair of laser displacement meter. Further, the surface positions of the substrate 16 and the transfer table 22 are detected by a non-contact displacement meter 30 (see FIG. 5) such as a pair of laser displacement meters.

  The transfer table 22 is fixed on the base 20 so as to be reciprocally movable, and its vertical position is fixed. Therefore, the non-contact displacement gauges 23 and 30 detect the surface of the substrate 16 placed on the transport table 22 and the lower end position of the plate cylinder 14, and then the slit nozzle 11 together with the lifting table 21 by the pair of left and right motors 26. The distance d3 between the surface of the printing plate 17 and the surface of the substrate 16 can be adjusted by moving the coating liquid supply roller 12 and the plate cylinder 14 up and down. The distance d3 at this time is adjusted to be smaller than the film thickness of the coating liquid formed on the printing plate P. The adjustment of the distance d3 will be described in detail later.

  Next, an adjustment mechanism for adjusting the distance d2 between the surface of the coating liquid supply roller 12 and the surface of the printing plate 17 will be described.

  As shown in FIG. 4, the coating liquid application roller 12 is pivotally supported by a pair of left and right coating liquid supply roller supports 33. The plate cylinder 14 is pivotally supported by a pair of left and right plate cylinder support portions 34. The pair of left and right coating liquid supply roller support portions 33 are configured to be able to contact and separate from the pair of left and right plate cylinder support portions 34.

  FIG. 6 is an enlarged view of the vicinity of the coating liquid supply roller support portion 33 and the plate cylinder support portion 34. In FIG. 6, only one end portion of the coating liquid supply roller support portion 33 and the plate cylinder support portion 34 is illustrated, but the other end portion has the same configuration.

  A plate cylinder support portion 34 that pivotally supports the plate cylinder 14 is fixed to the lifting table 21. On the other hand, the coating liquid supply roller support portion 33 that supports the coating liquid supply roller 12 is movable with respect to the lifting table 21 in a direction perpendicular to its axis.

  A motor 35 is disposed on the lifting table 21. The motor 35 is connected to a ball screw 36. The ball screw 36 is screwed with a nut 37 connected to the coating liquid supply roller support portion 33. For this reason, when the ball screw 36 is rotated by driving the motor 35, the nut 37 moves together with the coating liquid supply roller support portion 33 and the coating liquid supply roller 12 supported by the nut 37. The position of the nut 37 is detected by a distance measuring sensor 38 such as a linear gauge that moves together with the nut 37 and can contact the contact member 39.

  As described above, the plate cylinder support portion 34 that pivotally supports the plate cylinder 14 is fixed to the lifting table 21. Therefore, the plate cylinder 14 is moved by moving the coating liquid supply roller 12 together with the coating liquid supply roller support 33 by the pair of left and right motors 35 while detecting the position of the coating liquid supply roller support 33 by the distance measuring sensor 38. It is possible to adjust the distance d2 between the surface of the printing plate 17 mounted on the outer periphery of the coating plate 17 and the surface of the coating liquid supply roller 12. The distance d2 at this time is adjusted to be smaller than the film thickness of the coating liquid formed on the coating liquid supply roller 12.

  Next, an adjustment mechanism for adjusting the distance d1 between the slit nozzle 11 and the surface of the coating liquid supply roller 12 will be described.

  As shown in FIG. 4, the slit nozzle 11 is connected to a stay 41. One end of the stay 41 is rotatably supported by the first support member 42. A nut 44 is attached to the first support member 42. The nut 44 is screwed with a ball screw 46 that is rotated by driving the first motor 45.

  On the other hand, the other end portion of the stay 41 is supported by the second support member 43 so as to be rotatable and to be movable in the longitudinal direction of the stay 41. A nut (not shown) is attached to the second support member 43. The nut is screwed with a ball screw that is rotated by driving the second motor 47.

  Therefore, when the first motor 45 and the second motor 47 are rotationally driven in synchronization, one end of the first motor 45 and the second motor 47 are supported by the first support member 42 via the stay 41 and the other end is supported via the stay 41. Thus, the slit nozzle 11 supported by the second support member 43 moves up and down.

  FIG. 7 is an enlarged perspective view showing the vicinity of the end of the slit nozzle 11.

  A distance measuring sensor 48 such as a linear gauge is disposed on the lifting table 21. The distance measuring sensor 48 can come into contact with a contact member 49 attached to the end of the stay 41 supported by the slit nozzle 11. The distance measuring sensor 48 is also disposed at the other end of the slit nozzle 11. These distance measurement sensors 48 detect the position of the slit nozzle 11 through the position of the stay 41.

  As described above, the coating liquid supply roller 12 moves only in the horizontal direction together with the coating liquid supply roller support portion 33, and its height position is fixed. For this reason, by moving the slit nozzle 11 by driving the first and second motors 45 and 47 while detecting the position of the slit nozzle 11 by the distance measuring sensor 48, the slit nozzle and the surface of the coating liquid supply roller 12 are moved. It is possible to adjust the distance d1. The distance d1 at this time is set to a predetermined value depending on the film thickness of the coating liquid to be applied to the substrate 16.

  At this time, the stay 41 connected to the slit nozzle 11 has one end portion rotatable by the first support member 42, the other end portion rotatable by the second support member 43, and the stay 41. Therefore, it is possible to accurately adjust the distance between the surface of the coating liquid supply roller 12 and the slit nozzle 11 while preventing stress from being applied to the slit nozzle 11. It becomes possible.

  Next, the configuration of the cleaning mechanism 13 of the coating liquid supply roller 12 shown in FIG. 1 will be described. FIG. 8 is a schematic diagram of the cleaning mechanism 13 of the coating liquid supply roller 12.

  As described above, when the coating liquid remains on the surface of the coating liquid supply roller 12, when the coating liquid is further supplied from the slit nozzle 11 to the surface of the coating liquid supply roller 12, the thickness of the coating liquid is increased. Increases and becomes non-uniform, making it impossible to transfer a pattern having a required film thickness. For this reason, after supplying the coating liquid from the coating liquid supply roller 12 to the printing plate on the plate cylinder 14, the cleaning mechanism 13 is used to clean the surface of the coating liquid supply roller 12.

  The cleaning mechanism 13 includes a rinse pipe 71 for supplying the solvent of the coating liquid to the surface of the coating liquid supply roller 12, and a first for scraping the coating liquid applied to the surface of the coating liquid supply roller 12 together with the solvent. A blade 72, a recovery bat 73 for recovering the coating liquid scraped off by the first blade 72, a recovery conduit 74 for reusing the coating liquid recovered in the recovery bat 73 together with the solvent, and a coating liquid And a second blade 76 for scraping off the solvent of the coating liquid remaining on the surface of the coating liquid supply roller 12.

  In this cleaning mechanism, the coating liquid is prevented from being solidified by the solvent of the coating liquid supplied from the rinse pipe 71, and the coating liquid is recovered together with the solvent to the recovery vat 43. The recovered coating solution is sent again to the slit nozzle 11 after reuse and reused. Then, after the surface of the coating liquid supply roller 12 from which the coating liquid has been removed is immersed in the solvent of the coating liquid stored in the bat 75, the solvent of the coating liquid remaining on the surface is removed by the second blade 76. Is done.

  Next, a transfer process for transferring the coating liquid on the pattern P formed on the surface of the printing plate 17 onto the substrate 16 will be described. FIG. 9 is an explanatory view schematically showing this transfer step.

  In the state where the coating liquid is supplied onto the pattern P of the printing plate 17 from the surface of the coating liquid supply roller 12 described above, the thickness of the coating liquid is d as shown in FIG. When printing is started, the coating liquid is sandwiched between the pattern P of the printing plate 17 and the substrate 16, and the film thickness becomes d0. Finally, as described above, since the surface of the printing plate 17 and the surface of the substrate 16 are adjusted so as to be separated from each other by the distance d3, in the final stage of printing, the film thickness of the coating liquid Becomes d3.

  As described above, in the printing apparatus according to the present invention, when the pattern of the coating liquid formed on the surface of the printing plate 17 is transferred onto the substrate 16, the surface of the printing plate 17 mounted on the plate cylinder 14 and the substrate are transferred. By forming a small distance d3 between the surface 16 and the surface of the pattern 16, it is possible to prevent the pattern peripheral portion from being thickened to the outside and the pattern central portion from coming off and to perform printing with high accuracy. Further, since the printing plate 17 and the substrate 16 are not in direct contact with each other, it is possible to prevent the printing plate from being worn.

  Next, the adjustment process of the distance d3 between the surface of the printing plate 17 and the surface of the substrate 16 will be described. 10 to 12 are schematic diagrams for explaining the adjustment process of the distance d3.

  As shown in FIG. 10A, when adjusting the distance d3, first, the position of the upper surface of the transport table 22 is measured by the pair of non-contact displacement meters 23 described above, and the upper surface of the transport table 22 is measured. The zero point of the pair of non-contact displacement gauges 23 is set so that becomes a reference plane. At this time, as indicated by a one-dot chain line in FIG. 10A, a member 100 capable of establishing a plane such as a stretch is placed on the transport table 22, and the position of the zero point is set by measuring the position of the mask. To do.

  Next, as shown in FIG. 10B, the non-contact displacement meter 23 is moved together with the transport table 22, and the non-contact displacement meter 23 is arranged below the plate cylinder 14. Then, the non-contact displacement meter 23 is moved to the left and right, the lowermost position of the plate cylinder 14 is detected, and the non-contact displacement meter 23 is stopped at that position.

  Next, as shown in FIG. 11A, the plate cylinder 14 is rotated in a state where the printing plate 17 is mounted on the plate cylinder 14, and the thickness t1 of the printing plate 17 is measured. Further, from the thickness t1 of the printing plate 17 measured at this time, the outer diameter (the radius of the printing drum 14 + t1) of the printing plate 14 mounted on the outer peripheral portion of the printing drum 14 is measured, and this value and the rotation of the printing drum 14 are measured. Based on the speed, the relative movement speed of the transfer table 22 is calculated. When the thickness of the printing plate 17 is uneven, for example, the average value is used.

  Next, as shown in FIG. 11B, the thickness t2 of the substrate 16 and the position of the upper surface of the transfer table 22 are detected by a pair of non-contact displacement meters 30. The position of the upper surface of the conveyance table 22 is made to coincide with the position of the zero point obtained by measuring the position of the upper surface of the conveyance table 22 with a pair of non-contact displacement meters 23. When the thickness of the substrate 16 is uneven, for example, the average value is used.

  Then, as shown in FIG. 12, based on the thickness t1 of the printing plate 17 and the thickness t2 of the substrate 16, the lower end position of the plate cylinder 14 and the upper surface position of the transport table 22, the surface of the printing plate 17 and the substrate 16 The distance d3 with the surface is adjusted. The value of d3 is a value set in advance in order to obtain a necessary coating film thickness.

  In the printing apparatus having the above-described configuration, prior to executing printing, the distance d1 between the slit nozzle 11 and the surface of the coating liquid supply roller 12 and the surface of the coating liquid supply roller 12 and printing are performed by each adjustment mechanism. The distance d2 from the surface of the plate 17 and the distance d3 between the surface of the printing plate 17 and the surface of the substrate 16 are set to predetermined values based on the film thickness of the coating liquid to be applied to the substrate 16 and the like. .

  Thereafter, the coating liquid supply roller 12 and the plate cylinder 14 are rotated in synchronization with each other by driving a motor (not shown), and the conveyance table 22 is driven at the same speed as the peripheral speed of the plate cylinder 14 by driving the linear motor 31. It is moved in a direction perpendicular to the axis of the barrel 14. As a result, the pattern of the coating liquid on the printing plate 17 mounted on the outer periphery of the plate cylinder 14 is transferred to the surface of the substrate 16.

  Then, the surface of the printing plate 17 on which the coating liquid is transferred onto the substrate 16 is cleaned by the cleaning mechanism 15 of the plate cylinder 14 shown in FIG. The coating liquid supply roller 12 that has supplied the coating liquid to the printing plate 17 is cleaned by the cleaning mechanism 13 of the coating liquid supply roller 12 shown in FIGS.

  In the above-described embodiment, the case where the present invention is applied to a printing apparatus that prints a pattern on the substrate 16 using a material for pattern formation has been described. However, the printing apparatus that prints general ink is described. You may make it apply this invention.

  In the above-described embodiment, the slit nozzle 11 having a slit extending in the axial direction of the coating liquid supply roller 12 is used as a nozzle for supplying the coating liquid to the surface of the coating liquid supply roller 12. Other nozzles may be used as long as the coating liquid can be supplied linearly along the axial direction of the coating liquid supply roller 12 to the surface of the coating liquid supply roller 12. As such a nozzle, for example, a large number of circular or slot-like discharge ports are arranged in the axial direction of the coating liquid supply roller 12, and these discharge ports are linearly formed along the axial direction of the coating liquid supply roller 12. You may use the nozzle which discharges a coating liquid.

1 is a schematic diagram showing a main part of a printing apparatus according to the present invention. 1 is a perspective view of a printing apparatus according to the present invention. 1 is a perspective view of a printing apparatus according to the present invention. It is a perspective view which expands and shows a part of printing apparatus concerning this invention. It is a perspective view which expands and shows a part of printing apparatus concerning this invention. FIG. 6 is an enlarged view of the vicinity of a coating liquid supply roller support portion 33 and a plate cylinder support portion. 2 is an enlarged perspective view showing the vicinity of an end of a slit nozzle 11. FIG. 3 is a schematic diagram of a cleaning mechanism 13 of a coating liquid supply roller 12. FIG. FIG. 6 is an explanatory view schematically showing a transfer process for transferring a coating liquid on a pattern P formed on the surface of a printing plate 17 onto a substrate 16. It is a schematic diagram explaining the adjustment process of distance d3. It is a schematic diagram explaining the adjustment process of distance d3. It is a schematic diagram explaining the adjustment process of distance d3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Coating liquid supply mechanism 11 Slit nozzle 12 Coating liquid supply roller 13 Cleaning mechanism 14 Plate cylinder 15 Cleaning mechanism 16 Substrate 17 Printing plate 20 Base 21 Lifting table 22 Transport table 23 Non-contact displacement meter 24 Support side plate 25 Guide member 26 Motor 30 Non-contact displacement meter 31 Linear motor 32 Linear motion guide 33 Coating liquid supply roller support part 34 Plate cylinder support part 35 Motor 38 Distance measurement sensor 41 Stay 42 First support member 43 Second support member 45 First motor 47 Second Motor 48 Distance measuring sensor P pattern

Claims (3)

In a printing apparatus for transferring a coating liquid pattern formed on the surface of a printing plate onto a substrate,
A plate cylinder for mounting a printing plate on its outer peripheral surface;
Moving means for moving the substrate relative to the plate cylinder in a direction perpendicular to the axis of the plate cylinder;
Detecting means for detecting a distance between the surface of the printing plate mounted on the plate cylinder and the surface of the substrate;
The pattern of the coating liquid formed on the surface of the printing plate is adjusted on the substrate by adjusting the distance between the surface of the printing plate mounted on the plate cylinder and the surface of the substrate based on the detection value by the detection means. An adjustment mechanism for forming a minute gap between the surface of the printing plate mounted on the plate cylinder and the surface of the substrate when transferring to the plate cylinder,
A printing apparatus comprising: The printing apparatus according to claim 1,
A printing apparatus in which a minute interval formed between the surface of the printing plate mounted on the plate cylinder and the surface of the substrate is smaller than the film thickness of the coating liquid formed on the printing plate. In a printing apparatus for transferring a coating liquid pattern formed on the surface of a printing plate onto a substrate,
A plate cylinder for mounting a printing plate on its outer peripheral surface;
A transfer table for mounting a substrate;
Moving means for moving the transport table in a direction perpendicular to the axis of the plate cylinder below the plate cylinder;
Detecting means for detecting the lower end position of the plate cylinder, the position of the upper surface of the transport table, the thickness of the printing plate, and the thickness of the substrate;
Based on the lower end position of the plate cylinder, the position of the upper surface of the transport table, the thickness of the printing plate and the thickness of the substrate detected by the detecting means, the pattern of the coating liquid formed on the surface of the printing plate is formed on the substrate. An adjustment mechanism for forming an interval smaller than the film thickness of the coating liquid formed on the printing plate between the surface of the printing plate mounted on the plate cylinder and the surface of the substrate when transferring,
A printing apparatus comprising:

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