JP2001287375A - Ink jet printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ink jet printer having a cleaning device made compact by suppressing a stroke length of a cleaner lever and a lock lever to a minimum. SOLUTION: This printer has a printing head and the cleaning device 10. The cleaning device 10 includes the cleaner lever 25 with an elastic blade 26 which can reciprocate, the lock lever 61 for fixing the printing head, a first cam groove 17d comprising a butting cam part 17f which can mesh with the cleaner lever 25 and moves the cleaner lever 25 and a first equicircular cam part 17e which will not move the cleaner lever 25, a second cam groove 17g comprising a working cam groove 17g2 which can mesh with the lock lever 61 and moves the lock lever 61 and a second arc cam groove 17g1 which will not move the lock lever 61, and a clutch lever constituted to be rotatable in a predetermined range.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet printer provided with a device for cleaning a nozzle surface of an ink jet head for discharging ink.

[0002]

2. Description of the Related Art In general, in an ink jet system, characters and images are formed on recording paper by discharging ink droplets from a plurality of nozzles formed on a nozzle surface of a print head. In a printer of such a type, for example, the ink may be dried to increase its viscosity, or paper dust may adhere to the nozzle surface, and the nozzle may be clogged.
It is necessary to periodically clean the nozzle surface.

Conventionally, therefore, a cleaning device is provided in an ink jet printer, and ink or air bubbles in nozzles are sucked by a rotary ink pump, or a print head is moved with respect to a blade made of, for example, a rubber plate. The ink and paper powder attached to the nozzle surface are wiped off with a blade by contact with the nozzle.

In such a conventional cleaning device, it is necessary to surely suck the ink or the like on the nozzle surface. Therefore, for example, when the above-described ink pump is operated, the direction in which the ink head approaches or separates from the print head. The print head is fixed by a lock lever that is configured to reciprocate in a vertical direction.

Further, it is necessary to bring the blade into contact with the print head only when cleaning is performed from the viewpoint of preventing the wear of the blade. Therefore, the cleaner lever to which the blade is fixed reciprocates in a direction to approach or separate from the print head. Like that.

On the other hand, from the viewpoint of reducing the number of parts, the clutch lever connected to the ink pump is rotated within a predetermined range, and the moving direction of the clutch lever is changed by the cam mechanism in the moving direction of the cleaner lever and the lock lever. And alternately move them.

[0007]

However, in the conventional cleaning device, the rotational movement of the clutch lever is converted into the linear movement of the cleaner lever and the lock lever, and the top dead center of each of them is placed near the nozzle surface of the print head. Because of the setting, when one of the cleaner lever and the lock lever is moved to the top dead center, the other moves away from the nozzle surface by an amount corresponding to the amount of movement.

Therefore, the position of the bottom dead center of the cleaner lever and the lock lever must be set according to the top dead center of the lock lever and the cleaner lever, respectively.
As a result, the stroke lengths of the cleaner lever and the lock lever are unnecessarily secured, so that there is a problem that the cleaner device itself becomes large.

SUMMARY OF THE INVENTION The present invention has been made to solve such problems of the prior art, and an object of the present invention is to reduce the size of the cleaner lever and the lock lever by minimizing the stroke length. To provide an ink jet printer having a cleaning device.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to an ink jet head having a nozzle surface which can be printed by an ink jet method and having a reciprocable structure, and a method for wiping the ink jet head. Having a wiping portion, a cleaner lever that can reciprocate in a direction approaching or moving away from the inkjet head, a member for fixing the inkjet head at a predetermined position,
A lock lever that can reciprocate in a direction approaching or moving away from the inkjet head, a first movement area that can be engaged with the cleaner lever and moves the cleaner lever, and a first immovable area that does not move the cleaner lever. A second cam formed of a first cam portion, a second moving region that can be engaged with the lock lever and moves the lock lever, and a second immovable region that does not move the lock lever. And a driving member rotatably supported within a predetermined range, wherein the driving member is adapted to be used when the first moving region of the first cam portion is engaged with the cleaner lever. In the case where the second immovable region of the second cam portion is engaged with the lock lever, while the second moving region of the second cam portion is engaged with the lock lever, 1st immovable area of 1 cam part It is an inkjet printer, characterized in that is configured to engage the cleaner lever.

According to the present invention, when the lock member is moved by the second cam portion, the cleaner member cannot be moved by the first cam portion, and the cleaner member can be moved by the first cam portion. When the lock lever is not moved by the second cam portion when moving the lock member, only one of the cleaner lever and the lock lever can be moved by the rotation of the driving member. The stroke length of the lever can be minimized.

Therefore, only the space necessary for the stroke length of the cleaner lever and the lock lever needs to be secured in the portion where the cleaner lever and the lock lever move, so that the cleaning device itself including the cleaner lever and the lock lever can be downsized. This makes it possible to reduce the size of the inkjet printer itself.

In the present invention, the first immovable region of the first cam portion of the driving member is the second immovable region of the second cam portion.
Is formed in an arc shape with respect to the rotation center of the driving member in a predetermined range corresponding to the moving region of the driving member, while the second immovable region of the second cam portion of the driving member is the first cam. It is also effective that the portion is formed in an arc shape with respect to the rotation center of the drive member within a range corresponding to the first movement region of the portion.

According to the present invention, the first fixed area of the first cam section and the second fixed area of the second cam section are, for example,
By forming the arc shape with the rotation center of the drive member as a reference, the cleaner lever and the lock lever can not be moved, and the first immovable region of the first cam portion and the second It becomes easy to arrange the second immovable region of the cam portion in correspondence with the second moving region of the second cam portion and the first moving region of the first cam portion, respectively.

Further, in the present invention, the first member of the driving member is provided.
It is also effective that the cam portion and the second cam portion are arranged on substantially the same plane.

According to the present invention, by arranging the first cam portion and the second cam portion of the drive member on substantially the same plane, the shape of the drive member can be made flat. Accordingly, since the cleaner lever and the lock lever can be arranged at positions close to each other, the size of the ink jet printer can be further reduced.

Further, in the present invention, it is effective that the driving member has fixed points on the first cam portion and the second cam portion, respectively, at which both the cleaner lever and the lock lever do not move.

According to the present invention, when the lock lever is engaged at the intersection (fixed point) between the second movable area and the second immovable area, the first movable area and the first immovable area are separated from each other. If the cleaner lever is made to engage with the intersection (fixed point), the rotation of the drive member always involves the movement of either the lock lever or the cleaner lever, so that the rotational movement of the drive member is minimized. As a result, for example, control means for controlling the rotation of the driving member can be simplified.

In addition, in the present invention, an ink pump device configured to be capable of sucking ink in the ink jet head is provided, and the driving member includes a clutch unit configured to transmit power of the ink pump device by friction. And a lever portion extending in one radial direction from the rotation center of the driving member, wherein the first cam portion is provided on the lever portion, and the second cam portion is provided on the clutch portion. It is a target.

According to the present invention, a single power source can supply power to the ink pump device and also supply power to a drive member for moving the cleaner lever and the lock lever. The size can be reduced.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a cleaning device according to the present invention will be described in detail with reference to the drawings, together with an embodiment of an ink jet printer having the same.

FIG. 1 is a perspective view showing a schematic configuration of the cleaning device of the present embodiment. FIG. 2 is a perspective view showing a schematic configuration of each component of the cleaning device.

FIGS. 3 and 4 are front views showing a schematic configuration of the cleaning device. FIG. 3 is a diagram showing a state where the elastic blade is retracted, and FIG. 4 is a diagram showing a state where the elastic blade is exposed. It is. FIG. 5 is a diagram showing a positional relationship between a first cam groove and a second cam groove of a clutch lever of the cleaning device.

FIGS. 6 to 8 are views showing the positional relationship between the cleaner lever and the lock lever of the cleaning device.
FIG. 6 is a diagram showing a positional relationship when only the cleaner lever is retracted, FIG. 7 is a diagram showing a positional relationship when the cleaner lever and the lock lever are retracted, and FIG. 8 is a diagram illustrating only the lock lever retracted. It is a figure showing a positional relationship in a state.

Here, as shown in FIG. 1, the ink jet printer 1 of the present embodiment includes a print head (ink jet head) 2 having a nozzle surface 3 capable of discharging ink droplets. With the nozzle surface 3 facing downward (downward in FIG. 1), the nozzle surface 3 is configured to be able to reciprocate in the arrow A or B direction. On the other hand, the cleaning device 10 according to the present embodiment is arranged outside the printable area of the print head 2 and below the horizontal plane including the nozzle surface 3.

As shown in FIG. 1, the cleaning device 10
Has a housing 11 formed in a substantially box shape made of, for example, resin. A head cap 12 is provided at one corner in the longitudinal direction of the housing 11 (upper part in FIG. 1) so as to protrude from the main body part in the rearward direction (the direction of arrow A in FIG. 1). The head cap 12 is formed in a size that can cover the nozzle surface 3 of the print head 2.

As shown in FIG. 2, a bulging portion 13 is formed at the center of the housing on the side opposite to the head cap 12 so as to bulge toward the rear side of the housing. A substantially cylindrical pump unit 14 is attached to the bulging portion 13 so as to be rotatable in forward and reverse directions shown by arrows C or D. This pump unit (ink pump device) 14
Is for sucking ink, bubbles, and the like on the nozzle surface 3 when the print head 3 is placed on the head cap 12.

On the front side of the pump unit 14 (obliquely lower front side in FIG. 2), a driving support shaft portion 15 is provided so as to extend on the rotating shaft.
Has been fitted. The pump gear 16 has an engaging portion (not shown) provided at a predetermined portion on the rear side thereof engaged with an engaging portion 14a provided on the pump unit 14.
Thus, the pump unit 14 rotates by receiving the power of the pump gear 16.

The drive shaft 16 of the pump unit 14 is provided with a clutch lever (drive member) 17.
It is supported rotatably about a. The clutch lever 17 has a substantially disk-shaped clutch portion 17b having substantially the same size as the pump gear 16, and a fan-shaped lever portion 17c is formed to extend in one radial direction from the clutch portion 17b. Have been.

The clutch lever 17 is arranged so as to overlap with the clutch portion 17b pressed on the pump gear 16 by a compression coil spring (not shown). And the clutch lever 17
As long as the friction generated between the clutch portion 17b and the pump gear 16 does not cause slip on the friction surface, the pump gear 16
It is configured to be driven and rotated together with.

On the other hand, as shown in FIG. 2 or FIG. 3, the housing 11 is provided with a first locking portion 21 and a second locking portion 22 which can contact the lever portion 17c of the clutch lever 17. ing. The first locking portion 21 is provided for the clutch lever 1.
7 is disposed on the upper side in a substantially vertical direction with respect to the support shaft portion 17 a of the clutch lever 7, while the second locking portion 22 is arranged on the support shaft portion 17 a of the clutch lever 17 with respect to the first locking portion 21. And is disposed at a lower side while being opened by a predetermined angle. This allows
The clutch lever 17 is configured such that the lever portion 17c can rotate between the first locking portion 21 and the second locking portion 22 of the housing 11.

As shown in FIG. 3, the housing 11 has
The cleaner lever 25 is the lever portion 1 of the clutch lever 17
7c is arranged so as to overlap with a part thereof.

As shown in FIG. 2 or FIG. 3, the cleaner lever 25 has a main body 25a formed in a substantially L-shaped flat plate using, for example, a resin or the like. And an arm 25 formed to be bent in a direction substantially orthogonal to the lever 25b.
c.

The arm 25c of the cleaner lever 25 is provided with an elastic blade (wiping portion) 26. The elastic blade 26 is formed by bonding a rubber material having a predetermined thickness (for example, about 0.8 mm) and a felt material having a predetermined thickness (for example, about 0.7 mm), and is formed in a substantially rectangular plate shape. Things. Here, the rubber material has a so-called wiping function for wiping ink or the like on the nozzle surface 3, while the felt material has a so-called rubbing function for wiping to absorb the ink or the like on the nozzle surface 3.

The elastic blade 26 is arranged so that a part thereof overlaps the arm 25c of the cleaner lever 25, and is fixed in a state where the overlapping part is covered by the metal blade 27. The metal blade 27 is formed in a thin plate shape larger than the arm portion 25c of the cleaner lever 25, and is disposed so as to be in close contact with the rubber material of the elastic blade 26.

As shown in FIG. 2 or FIG.
1 is provided with a first guide groove 41 which can be engaged with the cleaner lever 25 in a substantially L-shape. The first guide groove 41 is formed so as to extend vertically from a central portion of the housing 11 to an upper portion of the housing 11, and is further bent horizontally from the upper end portion to the first locking portion 21. A corner groove 43 is formed.

A second guide groove 42 is provided below the first guide groove 41. This second guide groove 42
Is formed so as to extend from the central portion of the housing 11 to the lower portion of the housing 11 in the vertical direction, and is arranged in parallel with the first guide groove 41 at a predetermined interval.

On the other hand, as shown in FIG. 2 or FIG. 3, a first guide groove 41 is provided at an end portion of the lever portion 25b of the cleaner lever 25 on the arm portion 25c side and an end portion on the other side, respectively.
A first support projection 31 which can be fitted with the second guide groove 4
A second support projection 32 that can be fitted with the second support projection 2 is formed.

Then, as shown in FIG. 1 or FIG. 3, the first support projection 31 and the second support projection 32 of the cleaner lever 25 are respectively connected to the first guide groove 4 of the housing 11.
When the cleaner lever 25 is disposed in the first and second guide grooves 42, the cleaner lever 25 is supported by the housing 11 so as to be vertically movable while keeping the elastic blade 26 substantially flush with the vertical plane. ing.

As shown in FIG. 1 or FIG. 4, the first support projection 31 of the cleaner lever 25 is provided in the first guide groove 4.
When the elastic blade 26 is disposed in the first corner groove portion 43, the elastic blade 26 protrudes upward from the head cap 12 of the housing 11 and is disposed above the nozzle surface 3 of the print head 2. In this case, the protrusion 25 d extending from the arm 25 c of the cleaner lever 25 and protruding from the lever 25 b fits into the fitting groove 44 provided above the corner groove 43.

Here, as shown in FIG.
The horizontal distance between the first guide groove 41 and the second guide groove 42 is set in the direction in which the arm 25c of the first support protrusion 31 and the second support protrusion 32 of the cleaner lever extends. It is set narrower than the interval. Thereby, the elastic blade 26 of the cleaner lever 25 is supported in a state where its edge is inclined by a predetermined minute angle with respect to the horizontal direction.

As shown in FIG. 1 or FIG.
A blade accommodating portion 45 capable of accommodating the elastic blade 26 of the cleaner lever 25 is provided below and below the middle portion of the first guide groove 41 on the head cap 12 side. The blade accommodating portion 45 is formed in a substantially box shape, and its upper surface is open to a size that allows the elastic blade 26 to enter and exit.

A sub-elastic blade 51 is supported by the blade supporting portion 46 so as to cover the opened portion (in other words, the portion through which the elastic blade 26 passes) in the blade accommodating portion 45. The sub elastic blade 51 is slightly larger than the elastic blade 26,
It is formed in a substantially rectangular plate shape from a rubber material.

As shown in FIG. 3 or FIG. 5, a first cam groove (first cam portion) for operating the cleaner lever 25 is provided on the outer peripheral portion of the lever portion 17c of the clutch lever 17.
17d is formed. This first cam groove 17d is
A first arcuate cam groove (first immobile area) 17e formed so as to have the same radius and a predetermined central angle about the support shaft 17a of the clutch part 17b, and the first arcuate cam groove A triangular cam groove 17f is formed so as to extend in a substantially triangular area on the support shaft 17a side from 17e.
A contact cam portion (first movement area) 17f1 is formed in the triangular cam groove 17f so as to extend in the radial direction of the clutch portion 17b.

Then, the lever portion 2 of the cleaner lever 25
An operation protrusion 33 that can be engaged with the first cam groove 17d is formed in the middle portion of 5b.

When the operating projection 33 of the cleaner lever 25 is disposed in the triangular cam groove 17f of the clutch lever 17, as shown in FIG. 3 or 4, the first supporting projection 31 of the cleaner lever 25 is provided. Is guided to the corner groove portion 43 of the first guide groove 41.

On the other hand, as shown in FIG. 2 or FIG. 3, a lock lever 61 is provided above the housing 11 on the side opposite to the cleaner lever 25. The lock lever 61 is formed in a substantially bar shape having an engagement portion 61a that can engage with the print head 2 at the distal end.

On the other hand, the housing 11 is provided with a third guide groove (not shown) which can be engaged with the lock lever 61. The lock lever 61 is supported by the housing 11 so as to be able to move up and down by fitting an engagement protrusion 61b provided at a middle part of the lock lever 61 into the third guide groove.

In the clutch lever 17, a second cam groove (second cam portion) 17g for operating the lock lever is formed in an outer peripheral portion of the clutch portion 17b. The second cam groove 17g includes a second arc-shaped cam groove (second immobile area) 17g1, an operating cam groove (second movement area) 17g2, and a locking groove 17g3.

The second arc-shaped cam groove 17g1 is formed so as to have the same radius and a predetermined center angle around the support shaft portion 17a of the clutch portion 17b. The operating cam groove 17g2 is formed in a range of a predetermined central angle so that the radius gradually increases from one end of the second arc-shaped cam groove 17g1, and as shown in FIG. Is increased by the stroke length L of the engaging portion 61a of the lock lever 61.
Equivalent to 1. Further, the locking groove 17g3 is formed to extend from an end of the operation cam groove 17g2 in a direction substantially orthogonal to the radial direction.

As shown in FIG. 2, at the lower end of the lock lever 61, an operating projection 61c is formed which can be engaged with the second cam groove 17g.

Here, the positional relationship between the first cam groove 17d and the second cam groove 17g of the clutch lever 17 will be described.
This will be described with reference to FIGS.

Of the second cam grooves 17g, the locking grooves 17g
The central angle of No. 3 is a central angle α01, the central angle of the working cam groove 17g2 is a central angle α02, and the sum of the central angles α01 and α02 is a rotational angle α1.

On the other hand, assuming that the central angle of the first cam groove 17d is the central angle β1, the central angle β1 is equal to the second cam groove 17d.
g is set to be larger than the rotation angle α1. In addition, the first arcuate cam groove 17d is provided with the operating cam groove 17g2 of the second cam groove 17g and the second arcuate cam groove 1g.
When the operating projection 61c of the lock lever 61 is arranged at the intersection (fixed point) P with 7g1, the cleaner lever 2
5 is the contact cam portion 1 of the triangular cam groove 17f.
7f1.

If the rotation angle of the contact cam portion 17f1 of the first cam groove 17d required for the elastic blade 26 of the cleaner lever 25 to move by the stroke length L2 shown in FIG. The center angle α2 of the second arcuate cam groove 17g1 of the second cam groove 17g is the rotation angle β
It is set to be larger than 2.

On the other hand, as shown in FIG.
A drive motor 71 using, for example, a stepping motor is provided in a lower portion on the back side of
The drive gear 71a is fixed. This drive gear 71a
Is arranged below the housing 11 as shown in FIG. Here, the drive motor 71 is connected to a control unit (not shown), and is configured to rotate by a predetermined number of pulses according to a case where the pump unit 14 is operated, a case where the nozzle surface 3 is cleaned, and the like. Have been.

As shown in FIG. 2 or FIG.
A two-stage gear 72 is rotatably provided at a portion between the clutch lever 17a and the clutch portion 17b of the clutch lever 17. This two-stage gear 72 is a large gear 72a having two pitch circle diameters.
And the small gear 72b.
a and the small gear 72b mesh with the drive gear 71a and the pump gear 16, respectively.

On the other hand, as shown in FIG. 2 or FIG. 5, a predetermined portion on the outer peripheral edge of the clutch portion 17b of the clutch lever 17 has a tooth portion 17m having the same shape as the tooth portion of the pump gear 16. The tooth portion 17m is adapted to mesh with the pump gear 16 and the small gear 72a of the two-stage gear 72. The clutch lever 17
Of the elastic blade 2 of the cleaner lever 25
6 is formed in a range corresponding to a region in contact with the sub elastic blade 51.

In this embodiment having such a configuration, when printing or the like, as shown in FIG. 7, the clutch lever 17 is moved from the position where it comes into contact with the second locking portion 22 of the housing 11 to the arrow C as shown in FIG. It stops after being rotated by the central angle α1 in the direction shown. Thus, in this state, the lock lever 61 has its operating projection 61c connected to the second cam groove 1.
It is arranged so as to come to the intersection P of 7 g. On the other hand, the operating lever 33 of the cleaner lever 25 has the first cam groove 1.
It is arranged in contact with the 7d contact cam portion 17f1. Further, the lock lever 61 and the cleaner lever 25 are in a retracted state in the housing 11.

When cleaning the print head 2, first, as shown in FIG. 1, the print head 2 is placed on the head cap 12.

Then, as cleaning, the nozzle surface 3
In the case of sucking the ink or the like inside the nozzle a, or wiping the ink on the nozzle surface 3a, the drive lever 71 is operated by a predetermined number of pulses, so that the clutch lever 1 is turned on.
7 is rotated in the direction of arrow C from the position shown in FIG. In this case, as shown in FIG. 8, after the clutch lever 17 rotates by the rotation angle β2, it comes into contact with the first locking portion 21 of the housing 11 and stops. On the other hand, pump unit 1
Reference numeral 4 denotes that the pump gear 16 slides between the clutch portion 17b of the clutch lever 17 and continues to rotate to suck ink or the like inside the nozzle surface 3.

Here, when the clutch lever 17 is rotated at the rotation angle β
During the rotation by two, the cleaner lever 25 moves the stroke length L2 upward in the direction indicated by the arrow E while the operating projection 33 is in contact with the contact cam portion 17f1 of the first cam groove 17d of the clutch lever 17. Just move. Then, by causing the print head 2 to reciprocate in the arrow A or B direction shown in FIG. 1 with respect to the elastic blade 26 of the cleaner lever 25,
The ink on the nozzle surface 3 is wiped off.

On the other hand, when the clutch lever 17 is
The rotation of the lock lever 61 does not move the lock lever 61 because the operating protrusion 61c of the lock lever 61 moves in the second arc-shaped cam groove 17g1 of the second cam groove 17g.

When the print head 2 is locked, the drive motor 71 is operated by a predetermined number of pulses to rotate the clutch lever 17 from the position shown in FIG. In this case, as shown in FIG. 6, after the clutch lever 17 rotates by the rotation angle α1, it comes into contact with the second locking portion 22 of the housing 11 and stops.

On the other hand, the operating projection 61c of the lock lever 61
From the intersection P of the second cam groove 17g to the operating cam groove 17
It is arranged in the locking groove 17g3 via g2. This allows
The lock lever 61 moves in the upward direction indicated by the arrow E by the stroke length L1 and engages with the print head 2 to lock the print head 2.

On the other hand, when the clutch lever 17 has the rotation angle α1
The rotation of the cleaner lever 25 causes the operation protrusion 33 of the cleaner lever 25 to move within the first arc-shaped cam groove 17e of the first cam groove 17d, so that the cleaner lever 25 does not move.

As described above, according to the present embodiment,
When the clutch lever 17 moves the lock lever 61 with the second cam groove 17g, the cleaner lever 25 cannot be moved by the first arcuate cam groove 17e of the first cam groove 17d. When the cleaner lever 25 is moved by the first cam groove 17d, the second cam groove 17g is used.
Since the lock lever 61 cannot be moved by the second arc-shaped cam groove 17g1, the rotation of the clutch lever 17 allows only one of the cleaner lever 25 and the lock lever 61 to be moved. Stroke length L2 of lever 25 and lock lever 6
One stroke length L1 can be minimized.

Therefore, only the space required for the stroke length L2 of the cleaner lever 25 and the stroke length L1 of the lock lever 61 needs to be secured in the housing 11, so that the cleaning device 10 itself can be reduced in size.

Further, according to the present embodiment, the cleaner lever 25 and the lock lever 61 move in accordance with the direction in which the clutch lever 17 rotates, so that the control means for controlling the rotation of the drive motor 71. Can be simplified.

In particular, in the present embodiment, the lock lever 61 is located at the intersection P between the area where the lock lever 61 is moved (the operation cam groove 17g2) and the immovable area where the lock lever 61 is not moved (the second arcuate cam groove 17g1). When engaged, the stationary lever 25 does not move (the first arc-shaped cam groove 17e) and the region where the cleaner lever 25 moves (the contact cam portion 17f).
Since the cleaner lever 25 is engaged at the intersection with 1), the rotation of the clutch lever 17 always involves the movement of either the lock lever 61 or the cleaner lever 25. Movement can be minimized, and as a result, the control means can be made simpler.

In addition, in the case of the present embodiment, the elastic blade 26 of the cleaner lever 25 can be retracted to the vicinity of the lower side of the sub elastic blade 51 while the lock lever 61 is not moved. Blade 2
There is an advantage that time can be reduced when the nozzle 6 is brought closer to the nozzle surface 3 of the print head 2.

On the other hand, according to the present embodiment, since the cleaning device 10 is applied to the ink jet printer 1, the ink jet printer 1 itself can be downsized as the cleaning device 10 is downsized.

The present invention is not limited to the above embodiment, but can be variously modified.

For example, in the above embodiment, the cleaner lever 25 and the lock lever 6 which are the gist of the present invention.
Although an example in which a cam mechanism for moving both the first and second cams 1 and 2 is applied to the cleaning device 10 has been described, the present invention
The present invention is not limited to this, and can be applied to various mechanisms aimed at minimizing the stroke length required for a plurality of moving objects.

[0075]

As described above, according to the present invention, only one of the cleaner lever and the lock lever can be moved by the rotation of the drive member (clutch lever). The stroke length can be minimized, and as a result, the cleaning device itself can be reduced in size, and the printer itself can be reduced in size.

According to the present invention, the rotation of the drive member always involves the movement of either the lock lever or the cleaner lever, and furthermore, the cleaner lever and the lock lever correspond to the direction in which the drive member rotates. Is moved, the control means for controlling the rotation of the drive motor can be simplified.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a schematic configuration of a cleaning device according to an embodiment.

FIG. 2 is a perspective view showing a schematic configuration of each component of the cleaning device.

FIG. 3 is a front view showing a schematic configuration of the cleaning device (a diagram showing a state in which an elastic blade is retracted).

FIG. 4 is a front view showing a schematic configuration of the cleaning device (a diagram showing a state where an elastic blade is exposed).

FIG. 5 is a diagram showing a positional relationship between a first cam groove and a second cam groove of a clutch lever of the cleaning device.

FIG. 6 is a diagram illustrating a positional relationship between a cleaner lever and a lock lever of the cleaning device (a diagram illustrating a state where only the cleaner lever is retracted).

FIG. 7 is a diagram illustrating a positional relationship between a cleaner lever and a lock lever of the cleaning device (a diagram illustrating a state in which the cleaner lever and the lock lever are retracted).

FIG. 8 is a diagram illustrating a positional relationship between a cleaner lever and a lock lever of the cleaning device (a diagram illustrating a state where only the lock lever is retracted).

[Explanation of symbols]

 2 Print head (inkjet head) 3 Nozzle surface 14 Pump unit (ink pump device) 17 Clutch lever (drive member) 17d First cam groove (first cam portion) 17e First arc-shaped cam groove (first 17f1 Contact cam portion (first moving region) 17g Second cam groove (second cam portion) 17g1 Second arc-shaped cam groove (second immovable region) 17g2 Working cam groove (second region) 25 Cleaner lever 26 Elastic blade (wiping part) 61 Lock lever

Claims (5)

[Claims] 1. An ink jet head having a nozzle surface capable of printing by an ink jet method and configured to be reciprocally movable, and a wiping unit for wiping the ink jet head, in a direction approaching or separating from the ink jet head. A cleaner lever that can reciprocate; a lock lever that can reciprocate in a direction to approach or move away from the inkjet head; and a member that fixes the inkjet head at a predetermined position; A first moving region which is capable of moving the cleaner lever and a first immovable region which does not move the cleaner lever.
And a second cam portion that is engageable with the lock lever, and includes a second movement region that moves the lock lever and a second immovable region that does not move the lock lever. And a driving member rotatably supported in a predetermined range, wherein the driving member is configured such that when a first moving area of the first cam portion is engaged with the cleaner lever, In the case where the second immovable region of the second cam portion is engaged with the lock lever, while the second moving region of the second cam portion is engaged with the lock lever, An ink jet printer, wherein a first immovable region of the first cam portion is configured to engage with the cleaner lever. 2. The method according to claim 1, wherein the first immovable region of the first cam portion of the driving member has a predetermined range corresponding to a second moving region of the second cam portion. While being formed in an arc shape with the moving center as a reference, the second immovable region of the second cam portion of the driving member is in a range corresponding to the first moving region of the first cam portion. 2. The ink jet printer according to claim 1, wherein the ink jet printer is formed in an arc shape with reference to a rotation center of the driving member. 3. The ink jet printer according to claim 1, wherein the first cam portion and the second cam portion of the driving member are arranged on substantially the same plane. . 4. The drive member according to claim 1, wherein the first cam portion and the second cam portion have fixed points at which the cleaner lever and the lock lever are not moved together. The inkjet printer according to any one of claims 1 to 3. 5. An ink pump device comprising: an ink pump device configured to suck ink in the inkjet head; and the driving member includes: a clutch unit configured to transmit power of the ink pump device by friction; A lever portion extending in one radial direction from the rotation center of the member,
The first cam portion is provided on the lever portion,
The inkjet printer according to claim 1, wherein the second cam portion is provided on the clutch portion.