JP4992999B2 - Nail printing device - Google Patents

Description

  The present invention relates to a nail printing apparatus.

  The nail printing apparatus is a printer apparatus that places a printing finger, which is a nail finger to be printed, on a mounting table provided in the apparatus body, and prints on the nail of the printing finger. However, when the printing finger is simply placed on the mounting table, the hand is in an unstable state, so that the movement of the hand or arm is transmitted to the printing finger, and the printing finger may move. In order to prevent this, some nail printing apparatuses are known in which a printing finger is fixed by a restraining tool such as a holder so that the printing finger does not move (for example, Patent Document 1).

JP 2000-194838 A

  However, when trying to restrain the printing finger with the restraining tool, there arises a problem that the printing finger becomes cramped and feels painful.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a nail printing apparatus that can fix a printing finger with a simple structure and without causing pain.

The nail printing apparatus according to claim 1,
A printing finger insertion unit in which a finger corresponding to a nail to be printed is inserted as a printing finger;
A non-printing finger insertion part that is provided as a non-printing finger that is provided near the printing finger insertion part and does not perform printing;
The printing finger inserted between the printing finger insertion part and the non-printing finger insertion part, and the printing finger inserted into the printing finger insertion part and the non-printing finger inserted into the non-printing finger insertion part. A gripper that can be clamped;
Printing means for printing on the nail of the printing finger inserted in the printing finger insertion unit,
A slip stopper is formed on at least one surface of the grip portion.

  A nail printing apparatus according to a second aspect is the nail printing apparatus according to the first aspect, wherein a slip prevention groove is formed as the slip prevention.

  The nail printing apparatus according to claim 3 is the nail printing apparatus according to claim 1, wherein a low repulsion elastic member layer is formed as a non-slip on the surface on the printing finger insertion portion side. And

  The nail printing apparatus according to claim 4 is the nail printing apparatus according to claim 1, wherein a low-rebound elastic member layer is formed as the anti-slip on the surface on the printing finger insertion portion side, and the non-printing finger A rubber layer is formed on the surface on the insertion portion side as the anti-slip.

  The nail print apparatus according to claim 5 is the nail print apparatus according to any one of claims 1 to 4, wherein the print finger insertion unit is configured to flatten four fingers excluding the thumb as the print fingers. The non-printing finger insertion part is an insertion part having an opening area into which at least a thumb can be inserted as the non-printing finger, and the printing means includes: When the four fingers are inserted as the print fingers into the print finger insertion portion, the four finger nails can be collectively printed.

  The nail print apparatus according to claim 6 is the nail print apparatus according to any one of claims 1 to 4, wherein the print finger insertion portion has an opening area in which at least a thumb can be inserted as the print finger. The non-printing finger insertion portion is an insertion portion having an opening area into which four fingers other than the thumb can be inserted as the non-printing finger, and the printing means is disposed on the printing finger insertion portion. When a plurality of fingers are inserted as the printing fingers, the nail of the plurality of fingers can be collectively printed.

  The nail print apparatus according to claim 7 is the nail print apparatus according to any one of claims 1 to 4, wherein the print finger insertion unit arranges at least thumbs of both hands as the print fingers in a plane. The non-printing finger insertion portion is an opening area that can be inserted in a state where fingers other than the thumbs of both hands are stacked with each other as the non-printing finger. And the printing means is configured to be able to perform printing on the nails of the plurality of fingers collectively when a plurality of fingers are inserted as the printing fingers into the printing finger insertion unit. It is characterized by being.

  The nail print device according to claim 8 is the nail print device according to any one of claims 5 to 7, wherein the print finger inserted into the print finger insertion unit is photographed to acquire image data. And a control means for generating nail data from the image data generated by the imaging means and causing the printing means to print on the nail of the printing finger based on the nail data. .

According to the present invention, since the printing finger is fixed by nipping the gripping portion between the printing finger and the non-printing finger during nail printing, even if there is a trembling of the arm, the shaking does not occur. It is suppressed that it is transmitted to. As a result, appropriate printing is possible.
In addition, since the method of fixing the printing finger with a restraining tool such as a mold or a plate is not adopted at the time of nail printing, the printing finger is restrained from being cramped and does not feel pain.
Further, since at least one surface of the gripping portion is formed with a non-slip, the printing finger and / or the non-printing finger holding the gripping portion is prevented from slipping, so that the printing finger is more securely fixed. Can do.

1 is a perspective view conceptually showing an embodiment of a nail print apparatus according to the present invention, and shows a state in which a lid is opened. It is the perspective view which showed notionally the apparatus main body of the nail print apparatus of FIG. FIG. 2 is a cross-sectional view showing a printing finger fixing unit that is a main part of the nail printing apparatus of FIG. 1, and shows a fixing mode when four fingers excluding the thumb are inserted as printing fingers into the printing finger insertion unit. FIG. 2 is a cross-sectional view illustrating a printing finger fixing unit, which is a main part of the nail printing apparatus of FIG. It is sectional drawing which showed the printing finger fixing | fixed part which is the principal part of the nail print apparatus of FIG. 1, and has shown the other fixation aspect at the time of inserting a thumb as a printing finger in a printing finger insertion part. It is sectional drawing at the time of seeing the apparatus main body in FIG. 2 from the front side. It is sectional drawing at the time of seeing the apparatus main body in FIG. 2 from the right side from the right side. It is the block diagram which showed the control means of the nail print apparatus of FIG. It is a figure which shows the modification of the printing finger | toe fixing means of a nail print apparatus. It is a figure which shows the other modification of the printing finger | toe fixing | fixed part of a nail printing apparatus, (A) is a top view of the partition (grip part) which shows an example of the groove | channel for antiskid, (B) is the other groove | channel for antiskid It is a top view of the partition (grip part) which shows an example.

  Hereinafter, an embodiment of a nail printing apparatus according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the nail printing apparatus 1 includes a case main body 2 and a lid body 4. The case body 2 and the lid body 4 are connected to each other via a hinge 3 provided at the rear end portion of the upper surface of the case body 2.

  The case body 2 is formed in an oval shape in plan view. An opening / closing plate 2c is provided on the front side of the case body 2 so as to be able to rise and fall. The opening / closing plate 2 c is connected to the case body 2 via a hinge (not shown) provided at the lower front end of the case body 2. The opening / closing plate 2 c is for opening and closing the front surface of the case body 2. The nail printing apparatus 1 is used with the front surface of the case body 2 opened. An operation panel 52 described later is installed at the center of the top plate 2 f of the case body 2.

As shown in FIG. 2, the case main body 2 accommodates the apparatus main body 10 of the nail printing apparatus 1. The apparatus main body 10 constitutes a printing finger fixing unit 20 constituting a printing finger fixing unit, a photographing unit 30 constituting a photographing unit, a printing unit 40 constituting a printing unit, and a control unit. A control unit 50 (see FIG. 8) is provided. The printing finger fixing unit 20, the photographing unit 30, the printing unit 40, and the control unit 50 are provided in the machine casing 11.
The machine casing 11 includes a lower machine casing 11a and an upper machine casing 11b. The lower machine casing 11 a is formed in a box shape and is installed in the lower part of the case body 2. On the other hand, the upper machine casing 11 b is installed above the lower machine casing 11 a and above the inside of the case body 2.

The printing finger fixing unit 20 is provided on the lower machine casing 11 a in the machine casing 11. The printing finger fixing unit 20 includes a printing finger insertion unit 20a, a non-printing finger insertion unit 20b, and a gripping unit 20c provided in the lower machine casing 11a.
Here, the printing finger insertion unit 20a is a finger insertion unit for inserting the printing finger U1 corresponding to the nail T to be printed.
The non-printing finger insertion unit 20b is a finger insertion unit for inserting a non-printing finger U2 other than the printing finger.
The gripping portion 20c is a portion that can be sandwiched between the printing finger U1 inserted into the printing finger insertion portion 20a and the non-printing finger U2 inserted into the non-printing finger insertion portion 20b. The gripping portion 20c is constituted by a partition wall 21 that partitions the printing finger insertion portion 20a and the non-printing finger insertion portion 20b.

The upper surface of the partition wall 21 constitutes a flat printing finger placement surface. A bulging portion 22 is formed at the finger insertion side end of the partition wall 21. The bulging portion 22 contacts the bases of the printing finger U1 and the non-printing finger U2 when the printing finger U1 and the non-printing finger U2 are inserted into the printing finger insertion portion 20a and the non-printing finger insertion portion 20b. It is formed in the part. When the partition wall 21 (gripping portion 20c) is sandwiched between the printing finger U1 and the non-printing finger U2, the bulging portion 22 is held at the root of the printing finger U1 and the non-printing finger U2. Here, “holding” means that the bases of the printing finger U1 and the non-printing finger U2 come into contact with each other and the bulging portion 22 can be gripped. By holding the bulging portion 22, the wrist can be prevented from shaking left and right or up and down, and the hand can be stabilized. As shown in FIGS. 3 to 5, the bulging portion 22 is circular so as to bulge downward from the lower surface of the partition wall 21 when viewed in a cross section along the finger insertion direction (in side view). It has become. The shape of the bulging portion 22 is not limited to a circular cross section, and may be a non-circular shape such as an elliptical cross section or a polygonal cross section. In short, any shape may be used as long as it is held at the base of the printing finger U1 and the non-printing finger U2.
In addition, the size of the bulging portion 22, that is, the thickness in the thickness direction of the partition wall 21, is about 1 to 2 cm so that the base of the printing finger U1 and the non-printing finger U2 is sufficiently in contact with the bulging portion 22. Preferably, the thickness of the partition wall 21 is preferably about 0.5 to 1 cm smaller than the thickness of the bulging portion 22 so that the finger pad can be firmly pressed against the partition wall 21.

Further, on the upper surface and the lower surface of the partition wall 21, a slip stopper 23 is formed to prevent the printing finger U <b> 1 and the non-printing finger U <b> 2 from slipping when the partition wall 21 (the knob portion 20 c) is sandwiched. The anti-slip 23 prevents the printing finger U1 and the non-printing finger U2 from slipping in the lateral direction and the front-rear direction when the partition wall 21 is sandwiched between the printing finger U1 and the non-printing finger U2 from above and below. It is sufficient that the non-slip 23 is formed on one of the upper surface and the lower surface of the partition wall 21. If the anti-slip 23 is formed on the upper surface of the partition wall 21, the printing finger U1 is prevented from slipping directly. On the other hand, if the non-slip 23 is formed on the lower surface of the partition wall 21, the non-printing finger U2 is prevented from slipping, and thus the printing finger U1 holding the partition wall 21 with the non-printing finger U2 is more reliably secured. Fixed. The anti-slip 23 works effectively even when the bulging portion 22 is not wrapped around the base between the printing finger U1 and the non-printing finger U2.
The anti-slip 22 is formed, for example, by sticking sheets such as elastic foam on the upper and lower surfaces of the partition wall 21. An example of this is shown in FIGS. Here, low resilience elastic foam (low resilience elastic member layer) 23a, which suppresses elasticity such as soft urethane foam, and has increased viscosity, is adhered to the upper surface, and elastic foam 23b, such as rubber, is adhered to the lower surface. ing. Both the upper surface and the lower surface may be formed of the same material as a slip stopper. However, when the upper surface is made of the low rebound elastic foam 23a, the printing finger U1 is entirely submerged when the partition wall 21 is sandwiched, while the lower surface is made of an elastic foam 23b made of rubber or the like, so that printing is not performed. Since the finger U2 can be strongly pressed against the lower surface of the partition wall 21, the printing finger can be more reliably fixed without getting tired.
In this case, the anti-slip 23 may be formed only in a portion where the finger hits.
Further, as shown in FIGS. 10A and 10B, the non-slip 22 has a lattice-like or wavy anti-slip groove 23c formed directly on the upper surface and / or the lower surface of the partition wall 21; It can also be formed by sticking a plate on which lattice-shaped grooves are formed to the partition wall 21. When the anti-slip grooves 23c are formed on the upper and lower surfaces, the shapes of the upper and lower grooves can be different. Further, when the anti-slip 23 is formed on the upper surface and the lower surface, the anti-slip groove 23c can be combined with a sheet such as the elastic foam. In this case, the anti-slip groove 23c is sufficient as long as the finger can bite and prevent slipping. Further, the anti-slip groove 23c may be formed only in a portion where the finger hits.

3 to 5 specifically show how the printing finger is fixed.
In the nail print apparatus 1 of the embodiment, there are cases where four fingers other than the thumb (index finger, middle finger, ring finger, and little finger) are print fingers, and the thumb is a print finger.
FIG. 3 shows a fixed form in the case where four fingers other than the thumb are the print fingers U1. In this case, four printing fingers U1 other than the thumb are inserted into the printing finger insertion portion 20a in a state where they are arranged in a plane, and the thumb as the non-printing finger U2 is inserted into the non-printing finger insertion portion 20b. And the printing finger U1 is fixed by pinching the grip part 20c via the anti-slip 23 with the printing finger U1 and the non-printing finger U2. In this case, if the bulging portion 22 is held at the base of the index finger and the thumb or the palm, the tip of the hand is stabilized, so that the printing finger U1 can be fixed more reliably.
Further, FIG. 4 shows a fixing manner in the case where the thumb becomes the printing finger U1a. In this case, the thumb that is the printing finger U1a is inserted into the printing finger insertion portion 20a, and the four non-printing fingers U2a other than the thumb are inserted into the non-printing finger insertion portion 20b in a state of being arranged in a plane. Then, the printing finger U1a is fixed by sandwiching the grip portion 20c via the anti-slip 23 between the printing finger U1a and the non-printing finger U2a. Also in this case, if the bulging portion 22 is held at the base of the index finger and the thumb, the hand is stabilized, so that the printing finger U1a is more reliably fixed.
FIG. 5 shows another fixing mode in which the thumb becomes the printing finger U1a. In this case, the thumb, which is the printing finger U1a, is inserted into the printing finger insertion portion 20a, and the four non-printing fingers U2a other than the thumb are inserted into the non-printing finger insertion portion 20b in a state where they are overlapped in the vertical direction. And the printing finger U1a is fixed by pinching the grip part 20c through the anti-slip 23 with the index finger which is the printing finger U1a and the non-printing finger U2a. Also in this case, if the bulging portion 22 is held at the base portion between the index finger and the thumb, the hand is stabilized, so that the printing finger U1a is more reliably fixed.
In the description of FIGS. 4 and 5, the printing finger is U1a and the non-printing finger is U2a. However, when the printing finger and the non-printing finger are collectively referred to, the symbols U1 and U2 are used.

Next, the photographing unit 30 will be described. The photographing unit 30 is provided in the upper machine casing 11b in the machine casing 11 as shown in FIGS.
That is, a camera 32 having about 2 million pixels or more with a built-in driver is installed on the lower surface of the central portion of the substrate 31 installed in the upper machine casing 11b. An illumination lamp 33 such as a white LED is installed on the substrate 31 so as to surround the camera 32. The photographing unit 30 includes the camera 32 and the illumination lamp 33. The photographing unit 30 illuminates the printing finger U1 with the illumination lamp 33, photographs the printing finger U1 with the camera 32, and takes in the finger image data. The photographing unit 30 is connected to a control device 51 of the control unit 50 described later, and is controlled by the control device 51.

The printing unit 40 is provided in the machine casing 11 as shown in FIGS. 2, 6, and 7.
That is, two guide rods 41 are installed in parallel on both side plates of the upper machine casing 11b. A main carriage 42 is slidably installed on the guide rod 41. In addition, two guide rods 44 are installed in parallel on the front wall 42a and the rear wall 42b of the main carriage 42. A sub carriage 45 is slidably installed on the guide rod 44. A print head 46 is mounted at the center of the lower surface of the sub-carriage 45.
The main carriage 42 is connected to the motor 43 via a power transmission unit (not shown), and moves in the left-right direction along the guide rod 41 by forward and reverse rotation of the motor 43. The sub-carriage 45 is connected to the motor 47 via a power transmission unit (not shown), and moves in the front-rear direction along the guide rod 44 by the forward / reverse rotation of the motor 47. Printing on the nail T of the printing finger U1 inserted into the printing finger insertion portion 20a is enabled by the movement of the main carriage 42 and the sub-carriage 45 and the ejection of ink from the printing counter discharge 46.
An ink cartridge 48 for supplying ink to the print head 46 is provided in the lower machine casing 11a.
The printing unit 40 includes the guide rod 41, the main carriage 42, the motor 43, the guide rod 44, the sub carriage 45, the print head 46, the motor 47, the ink cartridge 48, and the like.

  The control unit 50 is provided in the upper machine casing 11b. As shown in FIG. 8, the control unit 50 includes a control device 51 installed on the substrate 31 and the like, and an operation panel 52 made up of a liquid crystal touch panel or the like provided at the center of the top plate 2 f of the case body 2. ing. The control device 51 includes a ROM and a RAM. The control device 51 stores various data such as a nail image pattern to be printed (various designs to be printed on the nail) and various programs such as a reading program and a printing program. Yes. The control device 51 executes this program and performs overall control of each unit of the nail printer device 1. As shown in FIG. 8, for example, a power switch 52a, a pattern selection switch 52b, a reading switch 52c, a printing switch 52d, and the like are arranged on the operation panel 52.

In particular, in the present embodiment, the control device 51 functions as a control unit that controls the photographing unit 30, the printing unit 40, and the like.
Specifically, when the reading switch 52c is operated while the power switch 52a is ON, the control device 51 acquires the image data of the printing finger U1 through the photographing unit 30, and prints based on this image data. Nail data such as the position / size / range of the nail T of the finger U1 is generated, and the position / range of printing by the printing unit 40 is determined.
Further, the control device 51 selects a nail image pattern to be printed from the nail image patterns stored in the ROM or the like based on the information input from the pattern selection switch 52b, and stores it in the RAM. When the print switch 52d is operated, the nail image pattern data is output to the printing unit 40, and the printing unit 40 is controlled to print the selected image pattern on each nail T of the printing finger U1.

In the nail print apparatus 1, printing is simultaneously performed on the nail T of the printing finger U1 inserted into the printing finger insertion unit 20a. Here, “simultaneous printing” means that printing can be performed on all the printing fingers U1 if necessary without taking out the printing fingers U1 once inserted into the printing finger insertion unit 20a.
For example, when printing is to be performed on the nail T of the index finger, middle finger, ring finger, and pinky finger, as shown in FIG. 3, the print finger U1 that is the index finger, middle finger, ring finger, and little finger is planarly placed on the print finger insertion portion 20a. Inserting them side by side and inserting a thumb into the non-printing finger insertion unit 20b, each of the index finger, middle finger, ring finger, and little finger printing finger U1 once inserted into the printing finger insertion unit 20a can be removed without removing from the printing finger insertion unit 20a. A predetermined nail image pattern can be printed on the fingernail T.

  Note that the control of the photographing unit 30 and the printing unit 40 can be performed by the same method as other general printer control, and the method for selecting a nail image pattern is also performed by another general graphic selection method. be able to.

According to the nail printing apparatus 1 described above, the following effects can be obtained.
Since the printing finger U1 is fixed by nipping the gripping portion 20c between the printing finger U1 and the non-printing finger U2 during nail printing, even if there is a trembling of the arm, the shaking is applied to the printing finger U1. Transmission is suppressed. As a result, appropriate printing is possible.
In addition, since the method of fixing the printing finger U1 with a restraint such as a mold or a plate is not adopted during nail printing, the printing finger U1 is suppressed from being cramped and does not feel painful.
Furthermore, by holding the bulging portion 22, the wrist can be prevented from shaking left and right and up and down, and the hand can be made more stable.
Further, since at least one surface of the gripping portion is formed with a slip stopper, the printing finger U1 and / or the non-printing finger U2 sandwiching the gripping portion 20c is prevented from slipping. Can be fixed to.
Further, when the partition wall 21 is gripped, the printing finger U1 and the non-printing finger U2 can reliably catch the partition wall 21 without slipping by the anti-slip 23. In particular, when the low-rebound resilience foam 23a is disposed on the upper surface of the partition wall 21, the printing finger U1 sinks entirely, so that the printing finger U1 is positioned reliably. Further, when the elastic foam 23b such as rubber is disposed on the lower surface of the partition wall 21, the non-printing finger U2 sinks and can be caught firmly, and the printing finger U1 is positioned more reliably.

As mentioned above, although embodiment of this invention was described, it cannot be overemphasized that this invention is not limited to this embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary.
For example, in the above-described embodiment, when the bulging portion 22 is viewed in a cross section along the insertion direction of the finger (as viewed from the side) as shown in FIGS. 3 to 5, the bulging portion 22 faces downward from the lower surface of the partition wall 21. Although it is circular so as to bulge, as shown in FIG. 9, when the bulging portion 22 is seen in a cross section along the insertion direction of the finger as shown in FIGS. 3 to 5 (in side view) Further, it may be circular so as to bulge upward and downward from the upper and lower surfaces of the partition wall 21. Also in this case, the shape of the bulging portion 22 is not limited to a circular cross section, and may be a non-circular shape such as an elliptical cross section or a polygonal cross section. In short, any shape may be used as long as it is held at the base of the printing finger U1 and the non-printing finger U2.

  Moreover, although the case where the nail | claw of the finger | toe of one hand was printed was described in the said embodiment, the nail | claw print of the finger | toe of both hands can also be performed simultaneously. In this case, for example, as shown in FIG. 3, the four fingers of both hands are arranged in the print finger insertion portion 20a and simultaneously inserted, or as shown in FIGS. Insert at the same time. However, when the thumbs of both hands are simultaneously inserted, the lateral width of the nail printing apparatus 1 can be advantageously reduced in the case of FIG. 5 compared to the case of FIG.

DESCRIPTION OF SYMBOLS 1 Nail printing apparatus 2 Case main body 4 Lid 20a Printing finger insertion part 20b Non-printing finger insertion part 20c Grasp part (partition wall)
20 Printing Finger Fixing Unit 30 Imaging Unit 32 Camera 33 Illumination Light (LED)
40 Printing unit 50 Control unit

Claims (8)

A printing finger insertion unit in which a finger corresponding to a nail to be printed is inserted as a printing finger;
A non-printing finger insertion part that is provided as a non-printing finger that is provided near the printing finger insertion part and does not perform printing;
The printing finger inserted between the printing finger insertion part and the non-printing finger insertion part, and the printing finger inserted into the printing finger insertion part and the non-printing finger inserted into the non-printing finger insertion part. A gripper that can be clamped;
Printing means for printing on the nail of the printing finger inserted in the printing finger insertion unit,
A nail printing apparatus, wherein an anti-slip is formed on at least one surface of the grip portion.   The nail printing apparatus according to claim 1, wherein an anti-slip groove is formed as the anti-slip.   The nail print apparatus according to claim 1, wherein a low-rebound elastic member layer is formed as the anti-slip on the surface on the printing finger insertion portion side.   The low-rebound elastic member layer is formed as the anti-slip on the surface on the printing finger insertion portion side, and a rubber layer is formed as the anti-slip on the surface on the non-printing finger insertion portion side. The nail printing apparatus according to 1.   The printing finger insertion part is an insertion part having an opening area into which four fingers excluding the thumb as the printing finger can be inserted in a state of being arranged in a plane, and the non-printing finger insertion part is the non-printing finger. As an insertion portion having an opening area into which at least the thumb can be inserted, and the printing means collectively collects the four fingers when the four fingers are inserted as the printing fingers into the printing finger insertion portion. The nail printing apparatus according to any one of claims 1 to 4, wherein the nail printing apparatus is configured to be able to print on the nail.   The printing finger insertion part is an insertion part having an opening area in which at least a thumb can be inserted as the printing finger, and the non-printing finger insertion part is capable of inserting four fingers excluding the thumb as the non-printing finger. The insertion unit has an opening area, and the printing unit is configured to perform printing on the nail of the plurality of fingers collectively when a plurality of fingers are inserted into the printing finger insertion unit as the printing fingers. The nail print apparatus according to any one of claims 1 to 4, wherein the nail print apparatus is provided.   The printing finger insertion part is an insertion part having an opening area where at least thumbs of both hands can be inserted in a state of being arranged in a plane as the printing finger, and the non-printing finger insertion part is a non-printing finger. The insertion unit has an opening area that can be inserted in a state where fingers other than the thumb are vertically stacked with each hand, and the printing unit is configured to insert a plurality of fingers into the printing finger insertion unit as the printing fingers. 5. The nail print apparatus according to claim 1, wherein the nail print apparatus is configured to be able to perform printing on the plurality of fingernails collectively.   An imaging unit that acquires the image data by imaging the printing finger inserted in the printing finger insertion unit, and nail data is generated from the image data generated by the imaging unit, and the printing unit is based on the nail data. The nail printing apparatus according to claim 5, further comprising a control unit that causes the nail of the printing finger to perform printing.

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