JP2000103070A - Ink jet printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To elevate/lower a wiper blade by a simple structure without causing increase in the motor torque of a carriage motor in an ink jet printer. SOLUTION: The ink jet printer includes a small projection provided at the side surface opposite to the cap 35 side of a blade holder 71 for holding a wiper blade 69, and a coil spring 77 so as to pull the blade holder 71 downward slantwise in the providing direction of the small projection, and further includes a wiper-push-up arm to be elevated/lowered in contact with the bottom surface of the blade holder 71 in interlocking with the elevation/lowering motion of the cap 35, and a receiving table 81 for receiving the small projection at its upper surface during the period of lowering the blade holder 71 from the uppermost position. The receiving table 81 receives the blade holder 71 on the way of its lowering to stop the wiper blade 69 at the wiping position of an ink spouting surface.

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, and more particularly to an ink-jet printer characterized by a lifting mechanism of a wiper blade for wiping ink adhering to an ink discharge surface of an ink-jet head.

[0002]

2. Description of the Related Art Conventionally, an ink jet printer having a wiper blade for wiping ink adhered to an ink ejection surface of an ink jet head is known.

[0003] Among such conventional ink jet printers, there is a fixed type of a wiper blade in which a wiper blade is always installed at an ink wiping position and a wipe operation of an ink ejection surface is performed every time the ink jet head is reciprocated. is there.

[0004] However, in such a wiper blade fixed type, since the ink wiping operation is performed every time the ink jet head reciprocates, there is a problem that the durability of the wiper blade is impaired. An ink jet printer has been proposed in which a wiper blade is moved up and down between a wiping position and a standby position.

For example, in an ink jet printer proposed in Japanese Patent Application Laid-Open Nos. 8-207293 and 8-224866, a wiper blade is provided with a lever, and the lever is operated by the carriage by reciprocating the carriage. The wiper blade is moved up and down.

The ink jet printer proposed in Japanese Patent Application Laid-Open No. 7-52396 is provided with a dedicated cam mechanism for raising and lowering a wiper blade, and transmitting the driving force of a line feed motor to the cam mechanism. It is configured to raise and lower the blade.

[0007]

However, in the conventional ink jet printer which raises and lowers the wiper blade by reciprocating the carriage, it is necessary to provide a lever for raising and lowering the wiper blade, and the structure of the wiper blade and its raising and lowering mechanism are required. There is a problem that it becomes complicated and the number of parts increases. Further, since the load applied to the carriage motor also increases, there is a problem that the motor torque of the carriage motor increases.

In the prior art of a type in which a dedicated cam mechanism is driven by a line feed motor to raise and lower a wiper blade, the structure of the wiper blade and its lifting mechanism is complicated by such a dedicated cam mechanism, and the number of parts is reduced. There is a problem of increasing.

SUMMARY OF THE INVENTION It is an object of the present invention to enable a simple mechanism to move a wiper blade up and down without increasing the motor torque of a carriage motor.

[0010]

According to a first aspect of the present invention, there is provided an ink jet printer, comprising: a purge cap for hermetically suctioning and purging an ink discharge surface of an ink jet head; A wiper blade for wiping ink attached to the ink ejection surface, the wiper blade holding the wiper blade, and a minute projection on a side surface opposite to a side surface facing the purge cap. A blade holder, a biasing means for biasing the blade holder in a direction in which the minute projections are provided, and in a direction of an initial position where the tip of the wiper blade does not contact the ink ejection surface; A first position of the cap farthest from the ink ejection surface; The wiper blade is brought into contact with the ink discharge surface by engaging or abutting on a part of the blade holder in conjunction with a reciprocating operation between the ink discharge surface and the second position where the purge is performed closest to the ink discharge surface. A wiper moving member that moves toward the wiping position, and a pedestal that receives the microprojections of the blade holder against the urging force of the urging means in order to hold the wiper blade at the wiping position. With
The blade holder is moved such that the tip of the wiper blade reaches the wiping position by the action of a cap moving mechanism that moves the purge cap from the first position to the second position, and the wiper of the inkjet head When the engagement between the microprojection and the receiving table is released by movement in the direction opposite to the ink ejection surface wiping operation by the blade, the tip of the wiper blade returns to the initial position by the action of the urging means. It is characterized by comprising.

According to the first aspect of the present invention, when the purge cap is moved from the first position to the second position to purge the ink discharge surface of the ink jet head, the wiper moving member also moves. The wiper moving member engages or abuts the blade holder to move the wiper blade toward the wiping position.
When the purge cap is returned to the first position after completion of the purge, the wiper blade also attempts to return to the initial position. At this time, the blade holder is received by the pedestal on the microprojection provided on the side surface, and the wiping is performed. Will remain in place. In this state, by moving the ink jet head in a direction in which the ink jet head comes into contact with the wiper blade, an operation of wiping ink adhering to the ink ejection surface is performed. Thereafter, when the ink jet head is moved in the reverse direction, the wiper blade is pushed by the ink jet head and moved in the direction in which the minute projection is removed from the receiving table. As a result, the wiper blade is returned to the initial position by the action of the biasing member. Thus, according to the inkjet printer of the first aspect,
The wiper blade can be moved to the wiping position in conjunction with the purge operation, and after wiping the ink, the ink jet head is simply returned to the initial position simply by moving the inkjet head in the opposite direction to the time of wiping the ink. be able to. The force to be applied to the wiper blade for returning to the initial position is sufficient if the minute projection can be removed from the receiving table, and the motor torque of the carriage motor does not increase. In order to exert the above-mentioned action, it is sufficient to provide the blade holder with the minute projections and only to provide the urging member and the receiving stand, and another special mechanism for returning the wiper blade to the initial position. Since it is not necessary to provide the desired object, the intended purpose can be achieved with a small number of parts having a simple structure.

According to a second aspect of the present invention, there is provided an ink jet printer, wherein a purge cap for purging the ink discharge surface of the ink jet head by hermetic suction is provided, and the ink adhered to the ink discharge surface purged by the purge cap is wiped off. In an inkjet printer including a wiper blade, a minute projection is provided on a side surface of the blade holder that holds the wiper blade on the side opposite to the purge cap, and the blade holder is pulled obliquely downward in the direction in which the minute projection is provided. A wiper raising member that raises the blade holder by contacting the bottom surface thereof, in conjunction with a raising operation of the purge cap in the direction of the ink jet head, and an ink jet by the wiper raising member. Head Said blade holder to rise toward, at the raised position, and a cradle for receiving in its upper surface by child stranded engaging said microprojections, and received by way down the blade holder by the cradle,
The wiper blade is configured to be stopped at a position where the ink ejection surface is wiped (wiping position).

According to the ink jet printer of the present invention, when the purge cap is raised to purge the ink discharge surface of the ink jet head, the wiper raising member is also raised, and the bottom surface of the blade holder is pushed upward, whereby The wiper blade also rises. When the purge cap is lowered after completion of the purge, the wiper raising member also lowers, and the blade holder also attempts to lower. At this time, the blade holder is pulled obliquely downward in the direction of the cradle by the pulling member. Therefore, the minute projection provided on the side surface of the blade holder is received by the receiving base, and the wiper blade is stopped at the ink wiping position. In this state, by moving the ink jet head in a direction in which the ink jet head comes into contact with the wiper blade, an operation of wiping ink adhering to the ink ejection surface is performed. Thereafter, when the ink jet head is moved in the reverse direction, the wiper blade is pushed by the ink jet head and moved in the direction in which the minute projection is removed from the receiving table. As a result, the wiper blade is pulled downward by the action of the pulling member,
Return to the initial position. In this way, according to the ink jet printer of the second aspect, the wiper blade can be raised to the ink wiping position as required, and after the ink wiping, the ink jet head is moved in the opposite direction to the time of the ink wiping. By itself, it can be returned to the initial position naturally. The force to be applied to the wiper blade for returning to the initial position is sufficient if the minute projection can be removed from the receiving table, and the motor torque of the carriage motor does not increase. In order to exert the above-mentioned effect, it is sufficient to provide the blade holder with minute projections and only to provide a pulling member and a receiving stand, and to provide another special mechanism for returning the wiper blade to the initial position. Since there is no need to provide them, the intended purpose can be achieved with a small number of parts having a simple structure.

According to a third aspect of the present invention, there is provided the ink jet printer according to the second aspect, wherein
The purge cap and the wiper raising member are configured to perform a raising and lowering operation by one cam mechanism driven by a line feed motor for feeding paper.

According to the third aspect of the present invention, the elevation of the purge cap and the elevation of the wiper blade can be performed by one cam mechanism driven by the line feed motor. In addition, the only member required for that purpose is the wiper raising member, and the intended purpose can be achieved without increasing the number of parts.

[0016]

Next, an embodiment of the present invention will be described with reference to the drawings. Portable printer 1 of embodiment
As shown in FIG. 1, a paper inserted in a paper insertion slot 5 provided in a lower portion on the back side of the main body 3 has a main body 3 which has a vertically long shape when viewed on a side when installed on a table. The printer is configured so that printing is performed by an internal printing mechanism while the PP is discharged from a paper discharge port 7 provided on the front side of the main body 3.

As a printing mechanism, as shown in FIGS. 1 and 2, the carriage 1 which moves in the width direction (Y direction) of the main body 3 is used.
1, ink jet heads 13 and 15 provided on the carriage 11, ink cartridges 17 and 19 detachably mounted on the upper part of the main body 3, a carriage motor 21 for driving the carriage 11 in the Y direction,
The apparatus includes a line feed motor 23 for transporting the paper PP from the back side to the front side of the main body 3 in the X direction shown in the figure, and transport rollers 25 and 27 driven by the line feed motor 23. The printing mechanism is disposed below the main body 3 as a whole, so as to lower the center of gravity of the portable printer 1.

Each of the ink cartridges 17 and 19 has two ink packages 29 therein.
The two ink packages 29 provided in the ink cartridge 17 include black and magenta.
Each color ink is filled with one color. Also,
The two ink packages 29 provided in the ink cartridge 19 are filled with two colors of ink of yellow and cyan, respectively.

The ink package 29 is composed of a bag in which a plurality of polyethylene resin film sheets are laminated. The ink in the ink package 29 is configured to be supplied to each of the inkjet heads 13 and 15 via the ink extraction needle 31 and the ink supply tube 33.

Further, in the portable printer 1 of the embodiment, as shown in FIG. 2, the ink ejection surfaces are provided at predetermined positions in the Y direction to prevent the ink jet heads 13 and 15 from drying when printing is not performed. Cap 3 to cover
5, 37 are provided. And these caps 3
The cap 35 on the left side of the figures 5 and 37 is configured as a purge cap so that a suction operation can be performed on the inkjet heads 13 and 15 by suctioning the ink ejection surface by a suction pump 51 described later.

As shown in FIGS. 3 and 4, this purging operation is performed by a drive shaft 43 which is connected to the line feed motor 23 via a connecting mechanism 39 comprising a gear and a clutch and which has a bevel gear 41 at the end. This is executed by rotating the maintenance cam 45. More specifically, the suction pump 5 is inserted into the inner and outer double cam grooves 47 and 49 formed on the upper surface of the maintenance cam 45.
Rod 5 extending from two pistons 53, 55 in 1
While the maintenance cam 45 makes one rotation, a negative pressure is generated in the cap 35 to suction ink, and the suction pump 51
It is configured to perform an operation of discharging the ink sucked by the above to the waste ink reservoir 61 of the cartridge 17. The rod 59 of the piston 55 disposed near the maintenance cam 45 is a hollow cylinder, through which the rod 57 of another piston 53 is slidably inserted.

Also, the maintenance cam 45 has a structure shown in FIG.
As shown in FIG. 6, a cam groove 63 is also formed on the side surface. Each cap 3 is attached to a cap drive lever 67 having a cam follower 65 engaged with the cam groove 63.
5, 37 are attached. Therefore, while the maintenance cam 45 makes one rotation, each cap 35, 37
The swinging movement that moves from the lowering position to the uppering position and returns to the lowering position is performed in conjunction with the swinging motion of the cap drive lever 67. The above-described suction of the ink is performed while the caps 35 and 37 are moving to the raised position.

As shown in FIG. 4 and FIG.
On the left side of 5, a wiper blade 69 for removing ink and the like attached to the ink ejection surfaces of the ink jet heads 13 and 15 is arranged. The wiper blade 69 is raised from the lowered position to the raised position by pushing up the blade holder 71 when the cap driving lever 67 is raised.

As shown in FIGS. 4 and 5, the cap driving lever 67 has a stopper 7 disposed between the caps 35 and 37 for positioning the carriage 11.
3 are provided.

Next, the operation of raising and lowering the caps 35 and 37, the wiper blade 69 and the stopper 73 will be described with reference to FIG. FIGS. 7A and 7B show caps 35 and 3.
7, a state in which the wiper blade 69 and the stopper 73 are at the lowered position. In this state, the wiper push-up arm 75 as a wiper moving member or a wiper raising member provided on the cap drive lever 67 does not contact the blade holder 71.

When the maintenance cam 45 starts to rotate,
As shown in FIG. 7C, the cap drive lever 67 starts to move up, and the caps 35 and 37 and the stopper 73 move up together. In addition, with this upward movement, FIG.
As shown in (D), the wiper push-up arm 75 contacts the bottom surface of the blade holder 71. Then, when the maintenance cam 45 is further rotated, FIG.
As shown in (F), the caps 35 and 37 and the stopper 7
3 further rises, and the wiper blade 69 is pushed up by the wiper push-up arm 75 and rises to the ascending position.

Next, the raising and lowering operations of the caps 35 and 37, the wiper blade 69 and the stopper 73 for the purging operation on the left ink jet head 13, and the control operation of the carriage 11 will be described with reference to FIGS. First, prior to the purging operation, the carriage 11 is moved to a position near the caps 35 and 37 as indicated by arrows in FIG. Subsequently, as shown by arrows in FIG. 8B, the caps 35 and 37 are raised. Then, as shown by an arrow in FIG. 9A, when the stopper 73 has risen to a predetermined position, the carriage 11 is further moved rightward, and as shown in FIG. The head 13 is brought into contact. And
In this state, as shown by the arrow, the cap 3
Increase 5,37 mag.

Thereafter, as shown in FIG. 10 (A), the ink ejection surfaces of the ink jet heads 13 and 15 are sealed with the caps 35 and 37 by raising the caps 35 and 37 to the highest position. In this state, as described above, the suction operation of the ink by the suction pump 51 is performed, and the purging operation for the left inkjet head 13 is performed.

After the purging operation is performed in this manner, the maintenance cam 41 subsequently rotates to start lowering the caps 35, 37 and the like, and as shown in FIG. It descends to the initial position. At this time, the wiper blade 69
By being pulled obliquely downward to the left by the biasing means attached to the blade holder 71 or the coil spring 77 as a pulling member, the blade holder 71 starts to descend together with the cap 35 and the like. However, the blade holder 71 stops descending at a position where the minute projection 79 provided on the left side thereof is in contact with the upper surface of the receiving table 81. As a result, as shown in the figure, only the wiper blade 69 does not return to the initial position and remains stopped in the ascended state.

In this state, the carriage 11 is moved to the left as shown by the arrow in FIG. As a result, the wiping of the ink 83 remaining on the ink ejection surface of the left inkjet head 13 is started by the wiper blade 69 kept in the raised state by the receiving table 81. However, in this ink wiping operation, as shown in FIG. 11A, before the ink ejection surface of the inkjet head 13 is completely wiped, the carriage 11 is stopped when it has moved leftward by a predetermined amount. As a result, the wiper blade 69 bent by the wiping operation of the ink keeps the warp and keeps the warp.
3 is kept in contact with the ink ejection surface. Therefore, the ink 83 wiped off by the wiper blade 69 falls down along the surface of the wiper blade 69 and is prevented from scattering around.

Thereafter, as shown by the arrow in FIG.
Next, the carriage 11 is moved rightward. By this operation, the blade holder 71 which has been kept in the raised state by the action of the minute projection 79 and the receiving base 81 is pushed rightward by the inkjet head 13 together with the wiper blade 69, and the minute projection 79 is removed from the receiving base 81. Is done. At this time, since the blade holder 71 is pulled obliquely downward by the coil spring 77,
As shown in FIG. 11B, the state is again lowered to the initial position.

Next, a purge operation for the right ink jet head 15 will be described with reference to FIGS. Also in this case, first, before the purging operation, the carriage 11 is moved to a position near the caps 35 and 37 as shown in FIGS. Subsequently, as shown by arrows in FIG. 12B, the caps 35 and 37 are raised. Then, as shown in FIG. 13A, when the stopper 73 is raised to a predetermined position, the carriage 11
Is further moved to the right, and as shown in FIG.
The right ink jet head 15 is brought into contact with the stopper 73. Then, in this state, the cap 3
Increase 5,37 mag.

Thereafter, as shown in FIG. 14A, the cap 35, 37 and the like are raised to the highest position, whereby the ink ejection surface of the right ink jet head 15 is sealed with the cap 35. In this state, as described above, the suction operation of the ink by the suction pump 51 is performed, and the purging operation for the right inkjet head 15 is performed.

After the purging operation has been performed, the maintenance cam 41 rotates to start lowering the caps 35, 37 and the like, and as shown in FIG. It descends to the initial position. At this time, the wiper blade 69
When the minute projection 79 provided on the left side surface of the blade holder 71 comes into contact with the upper surface of the receiving base 81, the lowering is stopped. As a result, as shown in FIG.
Only remain at the elevated position without returning to the initial position.

In this state, the carriage 11 is moved to the left as shown by the arrow in FIG. As a result, wiping of the ink 83 remaining on the ink ejection surface of the ink jet head 15 on the right side by the wiper blade 69 maintained in the raised state by the receiving table 81 is started. In this ink wiping operation,
As shown in FIG. 15A, before the ink ejection surface of the inkjet head 15 is completely wiped, the carriage 11 is stopped when it has moved leftward by a predetermined amount. As a result,
The wiper blade 69 bent by the ink wiping operation is kept in contact with the ink ejection surface of the ink jet head 15 while maintaining the bending. Therefore, the ink 83 wiped off by the wiper blade 69 falls down along the surface of the wiper blade 69 and is prevented from scattering around.

Thereafter, as indicated by the arrow in FIG.
Next, the carriage 11 is moved rightward. By this operation, the blade holder 71 kept in the raised state by the action of the minute projection 79 and the pedestal 81 is pushed rightward by the ink jet head 15 together with the wiper blade 69, and the minute projection 79 is removed from the pedestal 81. Is done. At this time, since the blade holder 71 is pulled obliquely downward by the coil spring 77,
As shown in FIG. 15B, the state is lowered to the initial position again.

As described above, according to the portable printer 1 of the present embodiment, the wiper blade 69 is provided on the cap driving lever 67 by rotating the maintenance cam 41 by the line feed motor 23. It is raised by the wiper push-up arm 75, and is stopped at the raised position by the action of the coil spring 77, the minute projection 79, and the pedestal 81. Then, the wiper blade 69 is pushed rightward by the rightward movement of the carriage 11, so that the minute projection 79
And is lowered to the initial position by the pulling force of the coil spring 77. As a result, a special drive source for raising and lowering the wiper blade 69 is not required, and the raising and lowering can be realized by a simple mechanism.

Further, according to the portable printer 1 of the present embodiment, the ink jet heads 13 and 1 after the purging operation are performed.
In the wiping operation of the ink ejection surface of No. 5, the leftward movement of the carriage 11 is stopped before the wiper blade 69 completely wipes the ink ejection surface. As a result, the ink 83 is dripped down along the wiper blade 69 bent by the wiping operation of the ink ejection surface,
There is no possibility that the wiper blade 69 is scattered around by the elastic return. As a result, the ink wiping operation after the purging operation does not cause the ink 83 to scatter around and stain the inside of the printer or the printing paper PP. In particular, in this embodiment, since the stoppers 73 position the ink jet heads 13 and 15 during the purging operation of the ink jet heads 13 and 15, the ink ejection surface is completely wiped by the ink wiping operation by the wiper blade 69. Previously, the operation of moving the carriage 11 leftward by a predetermined amount and stopping the carriage 11 can be accurately executed.

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and it is possible to adopt various forms without departing from the gist of the present invention. Of course.

[0040]

As described above, according to the ink jet printer of the present invention, the wiper blade can be moved up and down by a simple mechanism without increasing the motor torque of the carriage motor.

In particular, according to the ink jet printer of the third aspect, the wiper blade is wiped with the ink by the line feed (LF) motor.
, And can be returned to the initial position by a carriage (CR) motor. Therefore, by effectively using the motor provided in the ink jet printer, the simplification of the wiper blade elevating mechanism can be achieved, and the movement of the wiper blade to the ink wiping position and the return to the initial position can be achieved. Since these are performed by the actions of separate motors, compared to a conventional inkjet printer that performs these actions by the action of one of the motors, a simpler mechanism and a lower torque for each of the LF and CR motors are used. Can achieve the purpose.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an internal structure of a portable printer according to an embodiment.

FIG. 2 is a perspective view showing the internal structure of the portable printer according to the embodiment, partially cut away;

FIG. 3 is a plan view showing the internal structure of the portable printer according to the embodiment.

FIG. 4 is an enlarged plan view showing a cap and a wiper blade of the portable printer according to the embodiment;

FIG. 5 is an enlarged front view showing a cap and a wiper blade of the portable printer according to the embodiment;

6A and 6B show a maintenance cam in the portable printer according to the embodiment, wherein FIG. 6A is a front view and FIG. 6B is a development view of a cam groove.

FIG. 7 is a side view showing a lifting operation of a cap, a wiper blade, and a stopper in the portable printer of the embodiment.

FIG. 8 is a front view illustrating operations of a carriage, a cap, a wiper blade, and a stopper in the portable printer according to the embodiment.

FIG. 9 is a front view illustrating operations of a carriage, a cap, a wiper blade, and a stopper in the portable printer according to the embodiment.

FIG. 10 is a front view illustrating operations of a carriage, a cap, a wiper blade, and a stopper in the portable printer according to the embodiment.

FIG. 11 is a front view illustrating operations of a carriage, a cap, a wiper blade, and a stopper in the portable printer according to the embodiment.

FIG. 12 is a front view illustrating operations of a carriage, a cap, a wiper blade, and a stopper in the portable printer according to the embodiment.

FIG. 13 is a front view illustrating operations of a carriage, a cap, a wiper blade, and a stopper in the portable printer according to the embodiment.

FIG. 14 is a front view illustrating operations of a carriage, a cap, a wiper blade, and a stopper in the portable printer according to the embodiment.

FIG. 15 is a front view illustrating operations of a carriage, a cap, a wiper blade, and a stopper in the portable printer according to the embodiment.

[Explanation of symbols]

1 ... portable printer, 11 ... carriage, 1
3, 15: inkjet head, 21: carriage motor, 23: line feed motor, 3
5, 37 ... cap, 45 ... maintenance cam, 47, 49 ... cam groove, 51 ... suction pump,
63 ... cam groove, 65 ... cam follower, 67 ...
・ Cap drive lever, 69 ・ ・ ・ Wiper blade,
71: blade holder, 73: stopper, 75
························································································ 81
···ink.

Claims (3)

[Claims] 1. An ink jet printer comprising: a purge cap for hermetically sucking and purging an ink ejection surface of an ink jet head; and a wiper blade for wiping ink adhering to the ink ejection surface purged by the purge cap. A blade holder that holds the wiper blade and has fine projections on a side surface opposite to the side surface facing the purge cap; and a direction in which the fine projections are provided, and A biasing means for biasing the blade holder in a direction of an initial position where the tip does not contact the ink ejection surface; a first position of the purge cap farthest from the ink ejection surface; In conjunction with the reciprocating operation between the nearest position and the second position where the purge is performed, A wiper moving member that moves the wiper blade toward a wiping position that comes into contact with the ink ejection surface by engaging or abutting on a part of a wiper holder; and a blade that holds the wiper blade at the wiping position. And a receiving table for receiving the microprojections of the holder against the urging force of the urging means. The cap moving mechanism moves the purge cap from the first position to the second position. The blade holder is moved so that the tip of the wiper blade reaches the wiping position, and the movement of the ink jet head in the direction opposite to the wiping operation of the ink ejection surface by the wiper blade causes the engagement between the minute projection and the receiving table. When the connection is released, the tip of the wiper blade is biased. Inkjet printer characterized in that it is configured to return to the initial position by the action of the stage. 2. An ink jet printer comprising: a purge cap for performing suction by hermetically sucking and purging an ink discharge surface of an ink jet head; and a wiper blade for wiping ink adhered to the ink discharge surface purged by the purge cap. The blade holder for holding the wiper blade is provided with minute projections on the side surface opposite to the purge cap, and a pulling member is provided so as to pull the blade holder obliquely downward in the direction in which the minute projections are provided. In conjunction with the upward movement of the purge cap in the direction of the inkjet head, a wiper raising member that raises the blade holder by contacting the bottom surface thereof, and the wiper raising member that is raised toward the inkjet head by the wiper raising member. The blade holder In the ascending position, there is provided a pedestal for receiving the upper surface thereof by engaging with the minute projection. The pedestal receives the blade holder in the middle of descent and stops the wiper blade at the ink ejection surface wiping position. An ink jet printer, characterized in that: 3. The ink-jet printer according to claim 2, wherein the purge cap and the wiper raising member are configured to perform a raising / lowering operation by one cam mechanism driven by a line feed motor for feeding paper. An inkjet printer characterized by the following.