JPH0419150A - Ink jet printer - Google Patents

Abstract

PURPOSE:To efficiently collect a waste ink liquid produced at the time of purging or cleaning a nozzle face by providing a waste ink liquid receiver which contains an ink absorber and moved under a head block and which is capable of extending to a forward position of the front face of an ink jet head. CONSTITUTION:A head block 43 has therein an ink jet head 47, and a nozzle face 47a on the front face of the ink jet head 47 is covered with a cap 48. When a carrier 42 is at a printing position, the opening part 44c of a waste ink liquid receiver 44 is positioned below the front end portion of a head 47, and the front face of the nozzle face 47 is covered with the cap 48. If purging is carried out under such a condition, a waste ink liquid produced drops naturally in the inside of the cap 48 and passes through the opening part 44c of the waste ink liquid receiver 44 to be collected by an internal ink absorber 45. Further, when a carrier 62 is at a cleaning position, blades 71a for a cleaner provided on the outer surface of a cleaning belt 71 scrape downward a nozzle face 67a and simultaneously scrape an ink absorber 65b in a cleaner part 64 to allow ink residues attached to the surface of the ink absorber to be absorbed into the ink absorber.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an inkjet printer.

[Prior Art] Inkjet printers require cleaning of the nozzle surface to prevent clogging of the inkjet head,
Purging or the like is performed to flow ink from the nozzle at the home position to make it easier for the ink to pass through. Since the ink slag and ink waste liquid generated at this time may stain the printer and the recording paper, various means are employed to collect the ink slag and ink waste liquid.

The first conventional example is one in which a cap is placed on the front side of an inkjet head, and the ink discharged into the cap is allowed to fall naturally and guided to an ink absorber placed on the printer side (Japanese Patent Laid-Open No. 62-227753). There is.

As a second conventional example, as shown in FIGS. 19 and 20, ink tanks 101 are attached to both sides of a head 103, and the sides of the ink tank are extended along the head so that the head and the tip thereof are aligned. There is one in which a porous member 105 is attached to the side surface (Japanese Unexamined Patent Publication No. 59-45162).

The head 103 is cleaned by a nozzle cap 107 that selectively contacts the head, and the nozzle cap 107 removes dirt attached to the nozzle cap from the porous member 10.
By contacting with 5, it is made to be absorbed by this.

[Question 8 to be solved] In the first conventional example described above, ink accumulates in the passage due to surface tension and drips in places other than the absorbent installation location, and dried ink scatters and damages the inside of the printer and the head. There is a risk of contaminating the nozzle surface. Additionally, if the absorbent is used for a long period of time, the absorption capacity of the absorbent may deteriorate and the ink may not be absorbed and may overflow, so it is necessary to replace the absorbent as appropriate, which is a hassle for the printer user. It turns out.

In the second conventional example, since the porous member 105 is provided on the side surface of the head 103, even if the ink in the center part is scraped off by the cap 107, there is no absorbent below the head 103, so the ink can be scraped off. Most of the ink that was dropped is
There is a risk that it may fall into the printer and stain the inside of the printer. Further, a part of the ink wiped off by the cleaner 107a flows to both sides along the cleaner, and the porous member 105
Since the porous part is installed exposed on the outside, if a large amount of ink is absorbed, it may reach saturation and crumble, or the user may touch it when replacing the cartridge. There are disadvantages such as the risk of getting the hands of other people dirty.

A first object of the present invention is to efficiently recover ink waste liquid generated when purging or cleaning the nozzle surface of an inkjet head.

The second purpose is to prevent waste ink from staining the printer and the printer user's hands.

Thirdly, when the ink case is replaced, the cleaner and absorbent are also replaced at the same time, thereby saving the effort of replacing the absorbent and the like.

Fourthly, the dead space caused by the forward protrusion of the waste liquid receiving portion is reduced to improve the degree of freedom in design.

[Means for Solving the Problems] In order to achieve the above object, the inkjet printer of the present invention includes a carrier slidably provided on a carrier guide, and an inkjet head mounted on the carrier. The head block is equipped with a head block, an ink case that is removable from the head block, and a waste liquid receiver that has an ink absorber built-in and that can go under the head block and protrude to the front of the inkjet head. ing.

When the waste liquid receiver is provided integrally with the ink case, it is effective for simplifying the structure and facilitating handling.

To prevent stains during removal, it is recommended to provide a storage case in the ink case that allows the waste liquid receiver to be stored and pulled out.
It is convenient to be able to store the waste liquid receiver when removed.

In this case, it is convenient to provide the waste liquid receiver and the storage case with positioning means for determining the storage position and the draw-out position of the waste liquid receiver. Furthermore, a biasing member that urges the waste liquid receiver forward in the storage case and a lock lever that can lock a part of the waste liquid receiver in the storage position and are swingably provided in the storage case are provided. This makes it easy to store and pull out.

Furthermore, it has a storage case that movably stores the waste liquid receiver, and a rack is formed on the inner wall of the carrier facing the storage case and the waste liquid receiver, respectively, and a pinion that meshes with the two racks is provided in the storage case. It is good also as a structure where it is provided. In this case, the waste liquid receiver is moved forward and backward by the engagement of the two racks and the binion when the storage case is attached to and detached from the carrier, which improves ease of handling. Forming this storage case integrally with the ink case further helps to simplify the configuration.

Also, a biasing member that biases the waste liquid receiver toward the storage position, a fixing member provided near the home position, and a cam member provided on one side of the waste liquid receiver come into contact with the cam member. If the cam member is configured to have an inclined surface that advances the waste liquid receiver when it comes into contact with the abutting part in the home position, the cam member may be configured to have an inclined surface that advances the waste liquid receiver when necessary. automatically advances the waste liquid receiver.

In addition, a cleaning belt having a blade that can come into elastic contact with the front surface of the inkjet head in the cleaning position is provided, and the waste liquid receiver includes a cleaner section that has an ink absorber that can come into elastic contact with the blade, and a waste liquid receiver that is separated from the cleaner section. It is also possible to have a configuration including a body. In this case, the cam member includes a first inclined surface that advances the waste liquid receiver so that the cleaner section faces the cleaning belt when it comes into contact with the contact section at the cleaning position, and a first inclined surface that advances the waste liquid receiver so that the cleaner section faces the cleaning belt when it comes into contact with the contact section at the home position. When you come into contact with
By providing a second inclined surface for moving the waste liquid receiver so that the waste liquid receiver protrudes in front of the inkjet head, the waste liquid receiver can be automatically advanced or retreated when necessary.

Further, in the cleaning position, a cleaning belt having a blade that can come into elastic contact with the front surface of the inkjet head, and a cleaner member that can be stored and pulled out below the ink case and that has an ink absorber that can come into elastic contact with the blade; a biasing member that biases the cleaner member toward the storage position; a second cam member provided on one of the cleaner member and the fixing member provided near the cleaning position; and the second cam member. It is good also as a structure which comprises the 2nd contact part provided in the other side so that it can contact|abut. In this case, the second cam member is
The cleaner member has a second inclined surface that advances the cleaner member to face the cleaning belt when it comes into contact with the 20th contact portion in the cleaning position,
The cleaner member can be configured to move forward and backward automatically when necessary.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing the present invention, in which the carrier 2 is slidably provided on a carrier guide 6, and a head block 3 is mounted on the front portion 2a of the upper surface thereof.

The rear part of the upper front part 2a of the carrier 2 has a concave interior to form a mounting part 2b for the ink case 1, and both sides thereof are raised to form guide parts 2c, 2c. A hole 2d is provided below the head block 3 located in front thereof, into which an extension 4a extending from the ink case 1, which will be described later, can be inserted. Guide grooves 2e are provided inside the guide portions 2c, 2c.
, 2e are formed.

As shown in FIG. 2, the head block 3 has an inkjet head 7 built in, and a nozzle surface 7 on the front surface of the inkjet head 7.
a is exposed at the front. A needle 7b for receiving ink is provided at the rear end of the head block 3. The nozzle surface 7a is covered by a cap 8 in the home position, and the cap 8 is provided so as to be movable forward and backward by a drive means (not shown).

As shown in FIGS. 1 and 2, the ink case 1 includes:
It includes a box-like ink storage section 1a and a waste liquid receiver 4 that is integrally provided below the ink storage section 1a. The waste liquid receiver 4 has an extension 4a extending forward from the ink case 1, and an opening 4b is provided on the upper surface near the front end of the extension 4a. Guide protrusions 1b, lb consisting of horizontal protrusions are formed on both outer side surfaces of the waste liquid receiver 4. The guide protrusions 1b, lb can engage with the guide grooves 2e, 2e. Further, an air vent hole IC is provided at the rear end of the waste liquid receiver 4. An ink absorber 5 made of a porous material is housed within the waste liquid receiver 4 .

The ink storage portion 1a is filled with ink (2), and when the ink case 1 is mounted on the carriage 2, the ink can be supplied to the inkjet head 7 by the needle 7b. The extension part 4a of the waste liquid receiver 4, which is integrated with the ink storage part 1a, passes through the hole part 2d of the carrier 2 and protrudes forward from the front end of the head block 3, and the opening part 4b is connected to the nozzle surface 7.
The ink case 1 is attached to the carriage 2 so as to be located below a.

In the above configuration, when the head block 3 is at the home position, if purging is performed after covering the nozzle surface 7a with the cap 8, the ink flows out from the nozzle, removing dust and air bubbles in the ink, and the ink flows out from the nozzle. The waste liquid falls naturally and is collected into the internal ink absorber 5 through the opening 4b of the waste liquid receiver 4.

When printing is performed and the ink I filled in the ink storage portion 1a is used up, the ink case 1 is pulled out rearward, separated from the head block, and removed from the carrier 2.
Replace the ink case with a new one together with the waste liquid receiver 4.

3(a) and 3(b) show a second embodiment of the ink case attached to the carrier 2, in which the ink case 11
A storage case lla is integrally provided in the . A drawer-shaped waste liquid receiver 14 containing an ink absorber 15 is stored in the storage case lla so as to be removable from the front. The storage case 11g and the waste liquid receiver 14 are provided with positioning means for positioning the waste liquid receiver. This positioning means provides the waste liquid receiver 14 with elastic legs 14b, 14b each having locking claws 14a, 14a whose tips face outward, and places the waste liquid receiver 14 at a predetermined position on the inner surface of the side wall of the storage case lla. The locking grooves 11b, 11b in which the locking pawl 14a stops at the retracted position, and the locking pawl 1 at the withdrawn position of the waste liquid receiver 14.
It is configured by forming locking grooves 11c and 11c in which the locking groove 4a locks.

Knobs 14c, 14c are formed on both sides of the front end of the waste liquid receiver 14 to make it easier for the user to pinch it with his or her fingers.
Notches 11d and 11d are formed in the front end of the storage case llb to face each other.

In the configuration of the second embodiment, when the ink case 11 is removed from the carriage 2, the waste liquid receiver 14 is pushed into the storage case lla and placed in the storage position, which saves money when storing the ink case 11. It can be made into a space. Furthermore, by storing the waste liquid receiver 14 in the ink case after use, waste liquid does not leak outside. When attaching the ink case 11 to the carriage 2, as shown in FIG. 3(b), pull out the waste liquid receiver 14 to the drawn-out position and remove the ink waste liquid that falls from the nozzle during purging or cleaning. Waste liquid receiver 14
It is designed to be collected inside.

In the ink case 21 of the third embodiment shown in FIG. 4, the waste liquid receiver 24 can be taken in and taken out by operating a lock lever. That is, a waste liquid receiver 24 containing an ink absorber 25 is slidably housed in the front part of a storage case 21a provided in the ink case 21. A lock lever 26 is installed on one side wall of the ink case 21.
is attached so that it can swing freely. One end of the lock lever 26 slightly protrudes to the outside and can be operated from the outside, and the other end is provided with a locking pawl 26a. This locking claw 2
6 a is biased by a compression spring 28 so as to press against the side wall of the waste liquid receiver 24 .

A locking claw 26a of a lock lever is provided on the side of the waste liquid receiver 24.
A locking groove 24a is formed in which the locking claw 26 can be locked.
The storage position of the waste liquid receiver 24 is determined by the engagement between the groove 24a and the locking groove 24a.

A plate spring 29, which is a biasing member, is hooked between the rear part of the waste liquid receiver 24 and the rear inner wall of the storage case 21a, and the waste liquid receiver 24 is urged forward by this plate spring 29. .

Further, at the rear of the waste liquid receiver 24, there is a protrusion 24 that protrudes laterally.
A stopper 21b is formed on the inside of the storage case 21H to engage with the protrusion 24b and position the waste liquid receiver 24 at the drawn-out position. Stopper 21
c is for restricting the waste liquid receiver 24 from being pushed in too much.

In the configuration of the third embodiment, before the ink case 21 is attached to the carriage 2, the waste liquid receiver 24 is in the storage position as shown, and its front end is located at the front end of the storage case (and head block). are almost in agreement. At this time, the waste liquid receiver 24 is urged forward by the urging member 29, and the locking claw 26a of the lock lever 26 locks into the locking groove 24a of the waste liquid receiver to position it. When attaching the ink case 21 to the carriage 2, the lock is released by pushing the locking lever 26 backward with your finger, or by pushing the locking lever 26 by the inner wall (not shown) of the carriage during installation. The waste liquid receiver 24 is attached to the biasing member 2
9, the protrusion 24b and the stopper 21
b and is positioned at the drawn-out position. When removing the ink case 21, push the waste liquid receiver 24 inside.
The protrusion 24b contacts the stopper 21c to stop further retreat, and the locking pawl 26a engages with the locking groove 24a, so that the waste liquid receiver 24 is positioned at the storage position again.

Next, a fourth embodiment will be explained with reference to FIG. In this example, when the ink case 31 is attached to the carrier 32,
- The waste liquid receiver 34 is automatically pushed forward by the rack and pinion provided inside.

FIG. 5(a) shows a cross section of this ink case 31 when mounted on the carrier 32, and FIG. 5(b) shows its B-B
A cross section taken along a line is shown.

As shown in these figures, a rack 34a is formed on one side of the waste liquid receiver 34, and a rack 32b is also formed on the guide portion 32a of the carrier facing the rack 34a. Both racks 3 are stored in the storage case 31a.
A pinion 31b that meshes with the pinions 2b and 34a is rotatably provided between the pinions 2b and 34a. The other side of the waste liquid receiver 34 is guided by a guide roller 31c rotatably provided on the bottom surface of the storage case 31a.

FIG. 5(c) shows the ink case 3 when the waste liquid receiver 34 is stored.
This shows the appearance of 1. Similar to the first embodiment, a storage case 31a is integrally formed below the ink storage section 31d, and a guide protrusion 31e provided on the outer side of the storage case 31a is partially interrupted. A part of the pinion 31b protrudes there. The waste liquid receiver 34 is stored in the storage case 31H with its front end aligned with the front end of the ink case 31.

In the configuration of this fourth embodiment, when the ink case 31 in which the waste liquid receiver 34 is stored is mounted on the carrier 32 as shown in FIG. Rotate in the direction. The rack 34a that meshes with the pinion 31b is connected to the pinion 31b.
In response to the rotation b, the waste liquid receiver 34 is moved forward, and the ink absorber 35 is positioned in front of the nozzle surface. When removing the ink case 31 from the carrier, the pinion 31b is reversed and the waste liquid receiver 34 is pulled back into the storage case 31a.

FIG. 6 is a developed view showing the fifth embodiment, in which means for drawing out the waste liquid receiver is provided on the home position side in order to increase the effective space inside the printer.

That is, an insertion hole 41c is provided on one side of the storage case 41a of the ink case 41 at a position where the guide protrusion 41b is interrupted, and the guide portion 42a of the carrier 42 is provided with an insertion hole 41c.
A notch 42b is formed opposite to this insertion hole.

This ink case 41 is shown in FIGS. 7 and 8. A waste liquid receiver 44 is slidably housed in the storage case 41a, and a cam member 44a constituting a cam mechanism is provided behind the waste liquid receiver 44. The cam member 44a is formed with an inclined surface that pushes out the waste liquid receiver 44 to a predetermined position when the carrier 42 comes to the home position. The waste liquid receiver 44 is biased rearward by a tension spring (biasing member) 49 supported at its rearmost end.

As shown in FIG. 8, a protruding abutting portion 50a is formed on the fixing member 50 on the home position side of the printer body, and the abutting portion 50a passes through the notch 42b and the insertion hole 41c at the home position. The cam member 44a can be brought into contact with the cam member 44a.

In the configuration of the fifth embodiment, when the carrier 42 is in the printing position, the waste liquid receiver 44 is completely stored in the storage case 41a by the biasing member 49, as shown in FIG. 9(a). is in a state. The front end of the waste liquid receiver 44 is located behind the inkjet head 47 to reduce the dead space during printing operation. When the carrier 42 moves to the vicinity of the home position, the contact portion 50a enters through the notch 42b and the insertion hole 41c, and as shown in FIG.
4b, the waste liquid receiver 44 is pushed forward as shown by the dashed line. As shown in FIG. 9(b), the opening 44 of the waste liquid receiver 44
c is located below the front end of the inkjet head 47. At this time, the cap 48 is configured to cover the front surface of the nozzle surface 47a.

If purging is performed in this state, the waste liquid generated at this time naturally falls inside the cap 48 and is collected from the opening 44c of the waste liquid receiver 44 into the ink absorber 45 inside.

When the cap 48 separates from the head block 43 and the carrier 42 leaves the home position, the contact portion 50a separates from the cam member 44a, so that the waste liquid receiver 44 is pulled back into the storage case 41a by the urging member 49 again.

The sixth embodiment shown in Figures 10 and 11 shows another embodiment in which a cam mechanism is employed as the movement mechanism for the waste liquid receiver. An opening is provided at the rear end of the storage case 51a, and a contact portion 54a protruding from this opening is provided at the rear of the waste liquid receiver 54. A cam member 60a is provided on the guide portion 60, which is a fixed member near the home position. The cam member 60a is formed with an inclined surface 60b that advances the waste liquid receiver 54 when the head block contacts the contact portion 54a at the home position. The waste liquid receiver 54 is biased toward the storage position by a biasing member (spring) 59.degree. 59 disposed within the storage case 51a.

In the configuration of the sixth embodiment, when the carrier moves, the contact portion 54c follows the inclined surface 60b of the cam member 60a to advance or retreat the waste liquid receiver 54.

FIG. 11 shows the position when the head block comes to the home position, the waste liquid receiver 54 is moved forward compared to when it is in the printing position shown by the dashed line, and the ink absorber 55 is moved toward the nozzle surface. It will be located below.

When the carrier moves to the printing position, the waste liquid receiver 54 also returns to its original state.

FIG. 12 shows an example in which purging and cleaning are performed at different positions, in which the carrier 62 is moved from the printing position to the cleaning position and then to the home position, and the waste liquid receiver is placed at each position. The system attempts to efficiently collect waste ink and other liquid by moving it back and forth to the optimal position.

In order to be suitable for such an operation, the waste liquid receiver 64 of the seventh embodiment is provided with a cleaner section 64b having a small storage volume at the front and a cleaner section 64b at the rear thereof, as shown in FIG. 13(a). A large-volume waste liquid receiving section 64a is provided, and both are partitioned. Cleaner section 64b and waste liquid receiving section 64
Ink absorbers 65b and 65a are housed in a, respectively. FIG. 13(b) shows the state when the carrier 62 is in the cleaning position.

A cleaning belt 71 is provided at the cleaning position facing the inkjet head 67. The cleaning belt 71 has a blade 71a that can come into elastic contact with the nozzle surface 67a of the head 67, and a pulley 71b.
, 71b and is driven to rotate.

Figures 13 and 14 show means for advancing and retracting the waste liquid receiver 64 of the seventh embodiment. A first inclined surface 70a and a second inclined surface 70b forming a cam mechanism are formed on a cam part shrine 70 provided on a fixing member of the printer main body.
The first inclined surface 70a moves the waste liquid receiver 64 at the home position, and the second inclined surface 70b moves the waste liquid receiver 64 at the cleaning position. Further, a protruding contact portion 64c is provided at the rear of the waste liquid receiver 64.
It protrudes from the opening of the storage case 61H. The waste liquid receiver 64 is biased rearward by biasing members 69, 69 in the storage case 61a, and as the carrier 62 moves, the contact portion 64C moves against the inclined surface 70a of the cam member.
It is possible to move forward and backward along 70b.

FIG. 13 shows the configuration and operation when the carrier 62 is in each position. FIG. 13(a) shows the state when the carrier is at the home position, and corresponds to FIG. 14(c). Contact part 64
The waste liquid receiver 64 is pushed forward most by the first inclined surface 70a, and the waste liquid receiver 64a is located below the front end of the inkjet head 67. Further, the nozzle surface 67a is covered with a cap 68 which is movable forward and backward by a driving means (not shown). When purging is performed in this state, the ink flowing out from the nozzle 67a naturally falls inside the cap 68 and is collected in the ink absorber 65a in the waste liquid receiving portion 64a.

FIG. 13(b) shows the state when the carrier 62 is in the cleaning position, and corresponds to FIG. 14(b). At this time, the contact portion 64c provided at the rear of the waste liquid receiver 64 is pushed out to an intermediate position by the second inclined surface 70b, and the cleaner portion 64c of the waste liquid receiver 64 is pushed out to an intermediate position by the second inclined surface 70b.
4b is located below the nozzle surface 67a and faces the cleaning belt 71. cleaning belt 7
A cleaner blade 71a provided on the outer surface of the cleaner section 67a scrapes the nozzle surface 67a from top to bottom to scrape off ink scum and the like on the nozzle surface, and also scrapes the ink absorber 65b in the cleaner section 64b to remove ink that has adhered to the surface. Absorb scum etc. into the ink absorber.

FIG. 13(C) shows the state when the carrier 62 is in the printing position, and corresponds to FIG. 14(a). The contact portion 64c is in contact with the most retracted position of the cam member 70, and the front end of the waste liquid receiver 64 is in a retracted position than the front end of the inkjet head 67. When performing a printing operation in this state, there is no protrusion from the front surface of the inkjet head, so the dead space is reduced accordingly.

In FIG. 15(a), a front wall portion 64d is attached to the cleaner portion 64b.
An example is shown in which According to this, in the cleaning position, the cleaning belt 71
After the ink slag and the like scraped off from the nozzle surface by the blade 71a as it rotates is attached to the blade 71a, the dirt on the blade 71b is transferred to the ink absorber in the cleaner section 64b as shown in FIG. 15(b). 65b and the cleaner part 64 as shown in FIG. 15(c).
It is scraped off at the front wall portion 64d of b. Therefore, the blade 71a can be cleaned more reliably.

FIG. 15(d) shows a part of the bottom of each of the cleaner part 64b and the waste liquid receiving part 64a of the waste liquid receiver 64 on the inclined surface 64.
An example is shown in which the diameter is 64f and 64f, thereby improving the waste liquid recovery efficiency.

FIGS. 16 and 17 show an eighth embodiment in which the cleaner part and the waste liquid receiving part of the waste liquid receiver are constructed in two layers. That is, in a storage case 81a provided in the ink case 81, a waste liquid receiver 84a and a cleaner member 84b are provided so as to be movable forward and backward. And the waste liquid receiver 84a
The cleaner member 84b is provided with a first abutting part 84C and a second abutting part 84d, which constitute a cam mechanism, and can protrude from an opening at the rear end of the storage case. A first cam member 90a is attached to the fixed member 90 near the home position at a height corresponding to the contact portions 84c and 84d.
and a second cam member 90b are provided, and a first inclined surface 90C and a second inclined surface 90d constituting the cam are respectively formed. Note that when the carrier reciprocates between the print position, the cleaning position, and the home position as shown in FIG. 12, the second cam member 90b has a first
As shown in FIG. 7(a), two second inclined surfaces 90d, 9
0d is formed. Although not shown, the waste liquid receiver 84
For example, a biasing member similar to the biasing member 69 shown in FIG. 14 is provided to bias the cleaner member 84a and the cleaner member 84b toward the storage position.

In this configuration, when the carrier 82 comes to the home position, the first contact member 84c pushes out the waste liquid receiver 84a by the inclined surface 90c of the first cam member 90a, as shown in FIG. 16(a). Therefore, waste ink from purging can be collected into the ink absorber 85a. Also, when the carrier 82 comes to the cleaning position,
As shown in FIG. 16(b), the contact portion 84d of the cleaner member 84b is pushed forward by the second cam member 90b and faces the cleaning belt 71.

The cleaning belt 71 is driven to rotate and scrapes off ink slag and the like from the nozzle surface 87a of the inkjet head 87 with a blade 71a, which is then removed by a cleaner member 84b.
scrape off with the ink absorber 85b. At this time,
The first contact portion B4c of the waste liquid receiver 84 does not contact the first cam member 90a and is stored in the storage case 8ib.

FIG. 18 shows a ninth embodiment of the present invention.

This is a portion 91 extending laterally from the rear of the ink case 91.
a, and a waste liquid receiver 94 is provided in front of this extension. A head block 93 is mounted on the carrier 92, and the side of the head block 93 is attached to an ink case mounting portion 92.
It has become a. In this embodiment, the ink case 9
1 to the carrier 92, the guide protrusion 91b of the case is slid into the guide groove 92b of the carrier. At this time, the waste liquid receiver 94 penetrates the hole 92C and protrudes forward, and the opening 94a is located below the nozzle surface (not shown) of the ink shared head in the head block 93. Then, ink flows into the head from the ink case 91 by a needle 93M provided in the head block 93. In this way, it is also possible to provide a waste liquid receiver on the side of the ink case.

Note that the present invention is not limited to what has been described above, and for example, a configuration may be adopted in which a drive device (such as a solenoid) for moving the waste liquid receiver forward and backward is provided at the home position and the cleaning position, respectively, and ink is stored in the ink case. It can be widely applied to inkjet printers that are provided with a part and a waste liquid receiver.

[Effects] As explained above, according to the present invention, ink slag adhering to the nozzle surface and waste ink generated by purging can be efficiently collected. Further, if the waste liquid receiver is integrated with the ink case and replaced at the same time, the structure is simplified and handling becomes easy, and the user does not have to worry about replacing the waste liquid receiver. Furthermore, since a deteriorated ink absorber is not used, waste ink does not spill, and the cleanliness of the printer can be maintained. The waste liquid receiver has a small exposed part of the ink absorber, so you won't get your hands dirty during operation. By storing the waste liquid receiver in the ink case and allowing it to be pulled out, the waste liquid receiver can be stored in the storage position when the ink case is removed, which is effective in preventing stains during removal and during transportation. In addition, by inserting and removing the waste liquid receiver near the home position using a biasing member and a cam member, it is possible to automatically advance and retreat the waste liquid receiver at the required position. Since the body can be placed in a retracted position, it is effective in reducing dead space. Furthermore, if the waste liquid receiver is separated into a waste liquid receiving part and a cleaner part to collect waste ink, etc., the collection volume of the waste liquid receiver becomes larger and at the same time, the cleaning efficiency of the blade is improved.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing the first embodiment of the present invention, FIG. 2 is an enlarged sectional view showing the ink case of the first embodiment attached to a carrier, and FIG. A vertical cross-sectional view of the ink case of the second embodiment, FIG. 3(b) is similar to FIG. 3(a).
FIG. 4 is a cross-sectional view showing the ink case of the third embodiment, FIG. 5(a) is a cross-sectional view of the main part of the fourth embodiment, and FIG. b)
is a sectional view taken along the line B-B in FIG. 5(a), FIG. 5(c) is a perspective view of the ink case, FIG. 6 is an exploded perspective view showing the fifth embodiment, and FIG. An enlarged sectional view showing the ink case, FIG. 8 is a sectional view taken along line C-C in FIG. 7, and FIG. 9(a)
. (b) is a cross-sectional view showing the ink case attached to the carrier, FIG. 10 is a cross-sectional view of the main part showing the sixth embodiment, and FIG. 11 is a cross-sectional view taken along the line CC in FIG. , Fig. 12 is a plan view illustrating each movement position of the carrier, and Fig. 13 (a), (b), and (C) show the ink case having the waste liquid receiver of the seventh embodiment attached to the carrier. FIG. 14(a) is a cross-sectional view showing the state in which the 15(b) and 15(c) are plan views illustrating means for advancing and retracting the waste liquid receiver, and FIG. 15(a) is an enlarged sectional view showing the waste liquid receiver, and FIG. (C) is a sectional view illustrating the state of the waste liquid receiver in the cleaning position, FIG. 15(d) is a sectional view of an example in which the configuration of a part of the waste liquid receiver is changed, ), (b) are cross-sectional views showing the eighth embodiment, - FIG. 17 (a) is a plan view of the cam member, and FIG.
FIG. 18 is a developed perspective view showing a ninth embodiment of the present invention, FIG. 19 is a perspective view of a conventional example, and FIG. 20 is a front view thereof. 1.11, 21, 31.41, 81.91・φ... Ink case, 11a, 21a, 31a, 41a. 51a, 61a, 81a... Storage case, 11b, l
lc, 14b... positioning means, 2, 32. 4
2. 62. 82. 92・Carrier, 3.43.93・・Head block, 4.14,
24, 34.44, 54゜64.1l14a, 94... ・Waste liquid receiver, 5.15
, 25, 35, 4, 5, 55, 65a. 65b, 85a, 85b dispute--ink absorber, 6...
Carrier guide, 7.47, 67.87...Inkjet head, 26...Lock lever 29,49,59,69...Biasing member, 31bφ1
Pinion, 32b, 34a...Rack, 44a, 60a, 70.90a, 90b...Cam member, 44b, 60b, 70a, 90c. 70b, 90d... ・Slope, 50.90...
・Fixing member, 50a, 54a, 64c, 84c, 8
4d: Contact portion, 64a: Waste liquid receiving portion, 64b: Cleaner portion, 71: Cleaning belt, 71a: Blade, 84b: Cleaner member. that's all

Claims (10)

[Claims] (1) A carrier slidably provided on the carrier guide, a head block mounted on the carrier and equipped with an inkjet head, an ink case removably attached to the head block, and an ink absorber built in. On the other hand, an inkjet printer characterized in that it includes a waste liquid receiver that is able to go under the head block and protrude in front of the front surface of the inkjet head. (2) The inkjet printer according to claim 1, wherein the waste liquid receiver is provided integrally with the ink case. (3) The inkjet printer according to claim 1, wherein the ink case is provided with a storage case that allows the waste liquid receiver to be stored and pulled out. (4) The inkjet printer according to claim 3, wherein the waste liquid receiver and the storage case are provided with positioning means for determining a storage position and a withdrawal position of the waste liquid receiver. (5) A biasing member provided in the storage case that urges the waste liquid receiver forward, and a part of the waste liquid receiver that can be locked in the storage position so as to be able to swing freely in the storage case. 4. The inkjet printer according to claim 3, further comprising a lock lever provided therein. (6) A storage case for movably storing the waste liquid receiver, wherein a rack is formed on the inner wall of the carrier facing the storage case and on the waste liquid receiver, and the storage case has a rack as described above. A pinion that meshes with the two racks is provided, and the waste liquid receiver moves forward and backward by the meshing of the two racks and the pinion when the storage case is attached to and removed from the carrier. 1. The inkjet printer according to 1. (7) The inkjet printer according to claim 6, wherein the storage case is integrally formed with the ink case. (8) a biasing member that biases the waste liquid receiver toward the storage position; a cam member provided on one of the fixing member provided near the home position; and the waste liquid receiver; and the cam member. and a contact portion provided on the other end so as to be able to come into contact with the cam member, and the cam member has an inclined surface that advances the waste liquid receiver when it comes into contact with the contact portion at the home position. The inkjet printer according to claim 3, characterized in that: (9) A cleaning belt having a blade that can come into elastic contact with the front surface of the inkjet head in a cleaning position; and a waste liquid receiving part divided into two parts, and the cam member advances the waste liquid receiving part so that the cleaner part faces the cleaning belt when it comes into contact with the contact part in the cleaning position. a first inclined surface; and a second inclined surface that moves the waste liquid receiver so that the waste liquid receiver protrudes forward of the inkjet head when the waste liquid receiver comes into contact with the contact portion at the home position. The inkjet printer according to claim 8, further comprising an inkjet printer. (10) A cleaning belt having a blade that can come into elastic contact with the front surface of the inkjet head in the cleaning position, and a cleaner member that can be stored and pulled out below the ink case and has an ink absorber that can come into elastic contact with the blade. a biasing member that biases the cleaner member toward the storage position; a second cam member provided on one of the cleaner member and a fixing member provided near the cleaning position; a second contact portion provided on the other side so as to be able to come into contact with the cam member, the second cam member being in contact with the second contact portion in the cleaning position; 9. The inkjet printer according to claim 8, further comprising a second inclined surface for advancing the cleaner member so as to face the cleaning belt.