JPH03104643A - Ink jet recording head, and carrier for mounting and moving same - Google Patents

Abstract

PURPOSE:To protect a discharge surface by a method wherein a knock against component prepared by extending a rib projected forward from the discharge surface of a recording head in a transfer direction of a carrier is provided when the recording head is mounted. CONSTITUTION:For a knock against component 607, in order to possess a space of an ink tank as large as possible within a limited arranged space of a recording head and a carrier, it wall thickness is formed into thin one. Therefore, three ribs 608 for securing strength are formed for the component 607. A direction wherein this rib 608 extends is a transfer direction of the carrier 6 in order to have strength corresponding to spiral motion when a recording head is mounted or removed. Further, the rib 608 is so formed as to protrude forward approximate 0.1mm from its discharge surface when the recording head 9 is mounted. Thereby, even in the case where recording paper protrudes to a transfer passage of the recording head by any action, the recording paper can be prevented from rubbing the discharge surface to give damage or the like.

Description

Detailed Description of the Invention [11 Commercial Applications] The invention relates to a carrier for moving an inkjet recording head removably mounted thereon, and a recording head 1- which can be mounted on the carrier. Regarding.

[Prior Art] Some inkjet recording devices are known to use an inkjet recording head (hereinafter simply referred to as a recording head) in which an ink tank and a recording head element for ejecting ink are integrated. There is.

When mounting such a recording head on a carrier on the recording device side, it is necessary to accurately apply ink to the appropriate position on the recording medium such as paper to perform recording, and to install connection terminals for transmitting recording signals. Since the connection had to be made properly, the recording head had to be fixed and mounted in an appropriate position.

The recording head mounting methods are roughly divided into two methods: one is to install the recording head in parallel or rotationally from one side or the rear of the carrier, and the other is to insert the recording head into the carrier from a predetermined direction and then operate the fixing lever. There was a method to press the recording head to an appropriate position and fix it.

As a structure using one of such mounting methods, for example, the structure shown in Japanese Patent Application No. 1-8076 by the applicant has been proposed. In the configuration shown above, positioning protrusions, etc. for mounting are provided further outside the entire extension of the recording head, and the mounting lever mechanism is also provided in the carrier at the rear side when the recording head is mounted. It is possible. [Problems to be Solved by the Invention] Incidentally, in recent years, inkjet recording devices, especially recording heads, have been manufactured using semiconductor film-forming processes and micro-processing techniques, making them smaller and cheaper. Recording heads are being realized. As a result, as mentioned above, a disposable type 2J head with an integrated ink tank has been proposed.6 Along with this, the device itself is also smaller and cheaper, making it easier for users to use. There is a desire for an inkjet recording device that can.

In response to such demands, there is room for further improvement in the structure for removably mounting a recording head on a carrier, including the conventional example described above. For example, in the conventional configuration shown above, the guide member and positioning protrusion increase the overall length of the recording head, and the mounting lever mechanism on the carrier is also provided behind the recording head, making it unnecessary as it moves. This creates a large amount of dead space.

Furthermore, it is desirable that the movable range of the recording head during attachment and detachment is small and does not interfere with other members of the apparatus.

Furthermore, from the perspective of the ink storage capacity of an ink tank, it is desirable that the amount of ink that can be stored is as large as possible, so the ink tank should be made as large as possible within the space allowed for the recording head and carrier. Requires configuration.

In addition, when attaching and detaching the recording head, the connection of connection terminals for transmitting electrical signals such as recording signals is also an important problem associated with the structure for attaching and detaching the recording head. The present invention has been made in view of the above-mentioned aspects,
In order to increase the size of the ink tank integrated with the recording head mounted within the limited space, the abutment member placed on the front of the carrier is made thinner, and ribs are provided to reinforce the strength of this thinner material. Furthermore, it is an object of the present invention to provide a carrier whose ejection surface is protected by the ribs.

[Means for Solving the Problems] To this end, in the present invention, in a carrier for moving along a predetermined path on which an inkjet recording head with an integrated ink tank is mounted on a removable 1δ, The abutment member is characterized by having an abutment member having a rib that protrudes forward from the ejection surface of the printhead and extends in the moving direction of the carrier when the printhead is attached.

[Function] According to the above configuration, in order to increase the thickness of the mounted ink tank, for example, the thickness of the abutting member is made thinner, and ribs are provided to reinforce the strength of the abutting member.

Furthermore, by protruding forward from the protruding surface, the provided rib can prevent the protruding surface from being damaged by the recording paper.

(The following is a margin) [Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

Fig. 1 is an external perspective view of an inkjet recording apparatus according to an embodiment of the wooden invention, Fig. 2 is a perspective view of the main parts of the apparatus shown in Fig. 1 excluding the case, etc., and Fig. 3 (^) and (8) are diagrams mainly showing the paper ejection system of the apparatus shown in FIG. 1.

In FIG. 1, reference numeral 100 indicates an inkjet recording device, and this device 100 is used when placed as shown in the figure, and when used vertically as described later.
It is used in some cases and is relatively small.

101 is the device case, 102 is the outer cover, and 103 is the inner cover.
2 are superimposed, and the housing 100 becomes compact.

This allows the user to carry the recording device, for example, by putting it in a dedicated storage bag.

In addition, the outer i102 can also be used as a paper feed guide for the recording paper 40 as shown in the figure.
06 is the paper feed port. Furthermore, the outer M102 can also be used as a paper discharge tray, as will be described later.

In any of the above cases, reference numeral 107 in the figure serves as a paper discharge port.

105 is a position fixing hook of upper M102, and 104 is an operation key. This is a display section, etc.

Next, the configuration of the main parts of the apparatus will be explained with reference to FIG.

In the figure, 1 is a chassis, and a left side plate 1a and a right side plate 1b, which also serve as guides for recording media such as paper, are erected on the rear side. Further, the chassis 1 is provided with a motor mounting hole for rotatably supporting a carrier motor, which will be described later, but is not shown.

1h is a lead arm that supports a lead screw, which will be described later, in the axial and radial directions, and includes a bearing part (not shown).
It is pivoted on. 2 is a lead screw, and a lead groove 28 is formed in a predetermined bit opposite to the recording range. Further, on the carrier home position side of the lead screw 2, a position groove 3b for setting a position for capping and discharge recovery is formed along a cross section perpendicular to the screw axis. Further, the lead groove 2a and the position groove 3b are smoothly continuous with each other by the introduction groove 30.

A shaft 2g is provided at the right end of the lead screw 2, and a shaft is also provided at the left end, which are fitted into bearings provided on the front plate te and the lead arm 1b, respectively.
It is rotatably supported relative to them. 3 is the groove 3b mentioned above
, 3c, and is a lead pulley provided on the shaft of the lead screw 2, and a pulley 3a is provided at the end thereof. A driving force is transmitted from the motor l1 to the pulley 3a via the timing belt l3.

In addition, the shaft 2g on the right end side of the lead screw 2 is slidably engaged with the groove of the guide plate 1c connected to the chassis right side plate 1b and the chassis 1, and is rotated in the thrust direction by the holding part 10a of the leaf spring IO. While being pressed, the shaft 2g further engages with a cam groove of a cam groove plate 50a rotatably supported by a shaft provided on the guide plate 1c. Cam structure plate 50a
Interlocking teeth are formed around the , and this and the leaf spring lO
By engaging with the ratchet portion 10c, the cam groove plate 50a can be latched at a desired rotational position. As a result, the shaft 2g that engages with the cam mechanism is positioned in the groove of the guide plate 1C, and therefore the lead screw 2g is positioned in the groove of the guide plate 1C.
The position at the right end of the device is determined. This configuration is used to adjust the gap between the recording head and the platen, which will be described later. Reference numeral 4 denotes a clutch gear, which is slidably supported in the axial direction with respect to the lead boley 3, and is engaged in the rotational direction (in FIG. The rotational force of 2 is transmitted. 5 is a clutch spring, which is a compression spring that biases the clutch gear 4 in the direction of the lead groove. Note that the clutch gear 4 is within a predetermined range in the axial direction. A regulating member is formed between the clutch gear 4 and the boot boot 3 to prevent the clutch gear from moving only.

6 is the carrier and the lead screen. It is slidably attached to L-2. Reference numeral 6a denotes a pressing portion for pressing the end of the cladding gear 4, and is integrally formed on the left side of the carrier. Reference numeral 7 denotes a leet bin, which is engaged with the leat 7M2a of the lead screw 2, and its pressing direction is guided by a guide hole (not shown) in the carrier 6.
A lead bin spring 8 has one end attached to the carrier 6 and presses the lead bin 7 with the other end.

Reference numeral 9 denotes a recording head mounted on the carrier 6, and in the example shown in FIG. It is a disposable type that can be replaced when the ink is consumed. Note that an electrothermal transducer or an electromechanical transducer is used as the ejection energy generating element disposed in the head element 9a to apply ejection energy to the ink, but it is possible to implement high-density mounting of ink ejection ports, etc. The former is preferably used due to the advantages such as the fact that the manufacturing process is simple and the manufacturing process is simple. 6c is a hook and carrier 6
This is a mechanism used to stably stop the carrier 6 at the cap position of the f1 head 9, etc. during movement of the carrier 6, as will be described later. A carrier guide shaft 5l is slidably engaged with a guide bin 6b provided at the rear end of the carrier 6. The guide shaft 5l is eccentric as will be described later in FIG.
1a, and these @51a are rotatably supported by side plates 5lb and 51c provided at the ends of the chassis 1. Furthermore, the end of the shaft 51a that is supported by the side plate 51c is fixed to the positioning knob 51d, and the protrusion provided on the knob 51d and the hole 51. eh
The rotational position of the shaft 5l is determined by the engagement.

As shown in FIGS. 4(8) and 4(B), the above-described configuration allows the distance between the recording surface of the recording paper 40 and the ejection port of the head element 9a to be set appropriately depending on the type of recording paper 40. It is for the purpose of That is, by manually rotating the knob 51d, i51 can be moved to the position where the distance between @51a and the bottle 6h is minimum, as shown in FIG. 4(A).
In addition, as shown in FIG. 4(B), it can be fixed at a position where the irradiation is maximum. Accordingly, the recording head 9
is rotated about the lead screen j-2 as a rotation axis, and the recording paper 40 is placed at a position corresponding to relatively thin plain paper (Fig. 4 (A)).
), or fixed at M (FIG. 4(B)), which corresponds to relatively thick recording paper such as an envelope, with a large interval.

However, the structure described above or the structure corresponds to the recording paper during recording. That is, during the ejection recovery process, the recording head 9 is moved to the position of the recovery process system shown at the left end of FIG. At this time, the recording head 9 and the recovery system must always have a predetermined positional relationship. Therefore, Figure 4 (^
) or (B), the recording head 9 needs to take a fixed position during the ejection recovery process. The configuration for this purpose is shown in Figures 5(^) and (B)k.

Figures 5 (^) and CB) show diagrams corresponding to Figures 4 (^) and (B), respectively.

In the case of Figure 5 (^), l1il11 5 1 and bottle 6b
shaft 51a and bottle 6b without changing the height of the engagement position.
It becomes possible to concur. At this time, in order to maintain the height of the engaged position, the parallel portion of the trapezoidal cam 51g is also engaged with the bottle 6b.

In the case of FIG. 5(B), the recording head 9 moves and the bin 6b
When the bottle 6b attempts to engage with the 11ith5 1a, the height of the engagement position of the bottle 6b changes. For this reason, f451 is provided with a tapered portion 51f, and correspondingly, the trapezoidal cam 51g is provided with a tapered portion. As a result, as the height of the engagement position of the bottle 6b with the shaft 51 (tapered portion 51f, shaft 51a) changes, the height is maintained.

With the above structure, when the recording head 9 reaches the position of the ejection recovery system, it is possible to always maintain a predetermined height and therefore a predetermined positional relationship with the recovery system.

Note that the rotating fixed position of the recording head 9 is 2 as described above.
The present invention is not limited to this, but it is also possible to fix it at an intermediate position and adapt it to recording paper of various thicknesses.

In this case, the protrusion of the knob 51d and the hole 51 of the side plate 51c
What is necessary is to increase the engagement position of e.

Furthermore, the rotation of the knob 51d is not limited to manual operation; for example, the knob 51d may be rotated using the driving force of a paper feed motor or the like in accordance with the key manual force C corresponding to the recording paper used.

Referring again to FIG. 2, reference numeral 11 is a carrier motor made of, for example, a pulse motor, and rotary pins lla are provided in alignment at the lower part of the front and rear surfaces of the carrier motor. (The one on the rear side is not shown) is rotatably attached to a motor attachment hole provided in a recovery system base 50 that is movable on the chassis 1. Of course, the rotating bottle may be provided on the recovery system base 50 and the mounting hole may be mounted on the motor side.

The carrier motor 11 is mounted so that it can rotate around the rotating bin lla. Reference numeral 11b denotes a spring receiver, which is integrally formed with the carrier motor and is erected parallel to the motor shaft to receive a motor spring 14, which will be described later. The spring receiving portion C is formed with a cylindrical projection, and an end portion of a coiled motor spring l4 is fixed thereto.

12 is a motor pulley, which is fixed to the motor shaft C of the carrier motor 11. l3 is the timing belt,
It is stretched between the motor pulley l2 and a pulley 3a provided on the shaft of the lead screw 2. Motor spring l4 is
In the configuration of this example, a compression spring is used, and the lead arm th
It is attached between the carrier motor 11 and the spring receiver 4fllb of the carrier motor 11, thereby urging the carrier motor 11 in eight directions in the figure and applying tension to the timing belt 3.

Reference numeral 15 denotes a set shaft, which is erected on a side plate (not shown) fixed to the base 50, to which means for improving the discharge port formation surface, a cap, and a so-called recovery system mechanism related to discharge recovery are attached. By the way, as mentioned above, the positional relationship between this recovery system mechanism and the recording head 9 is important.

For example, the positional relationship of the blade with the discharge F joint is important in order to properly perform the blade's function of wiping the n1 discharge D of the 9B head 9, and also to maintain a good capping function on the discharge port surface. The distance between the cap and the discharge port surface is important for achieving this. Therefore, these recovery system mechanisms and the recording head 9
It is desirable that the positional relationship between the

On the other hand, the recording head 9 has its driving force transmitted via the lead screw 2, so that the recording head 9 has a lead screw L 2 .
Record while moving along e. At this time, recording paper 4
It is clear that it is desirable that the distance between 0 and the ejection port of the recording head 9 be the same at any position of movement.

Therefore, by adjusting the distance of the recording head 9 to the recording paper,
Although it is possible to provide an adjustment mechanism that allows the recording head to move parallel to the recording paper, this adjustment may impair the fixed positional relationship with the recovery system. Therefore, in this embodiment, a recovery system base 50 provided with a carrier motor it and a recovery system mechanism to be described in detail later is made movable with respect to the chassis I.

By this movement of the base 50 and the adjustment by the cam groove plate 50a described above, the position of the lead screw 2 is adjusted at both ends, so that the recording head 9 moves parallel to the recording paper 40. The details of the mechanism in the base 5G for this purpose are shown in FIG.

FIG. 6 is a perspective view of the recovery system base 50 taken from the direction opposite to that of FIG. 2, and is partially cut away.

In the figure, reference numeral 50e denotes a guide groove member whose side surface of the groove provided on the back side of the base 50 is fixed, and this member 50e
groove, and a key-shaped guide member 1k fixed to the V-shield 1.
By engaging with the guide portion C, the moving direction of the base 50 is regulated and the base 50 can be prevented from floating up from the chassis 1.

In the above mechanism, as shown in detail in FIG. While touching the surface, press the part. At this time, the base 50 moves in the direction guided by the member 50e and the member 1k due to the reaction force of the pressing force.

Note that the above cam structure may be such that the cam plate is rotated around a predetermined axis by operating a shaft that engages with a predetermined cam groove formed in the cam plate. Along with this movement, the carrier motor 11 attached to the base 50 and the drive system for driving the motor 11, ie, the timing belt 13, the booster 3.12. The lead screw 2, etc., and the recovery system mechanism similarly attached to the base 50 move together.
The position of one end of is adjusted. On the other hand, the position of the other end of the lead screw 2 is adjusted by rotating the cam groove plate 50a. With the above adjustment C, the lead screw 2 can be made parallel to the recording paper, and therefore the recording head can be moved parallel to the recording paper.

Note that this adjustment is performed by an assembly robot during the manufacturing process of the recording device, but this adjustment may also be performed on the user side, for example, during repair or the like after using the device for a long period of time.

Next, refer to Figure 2 and Figure 7 (^) to (C)'(
Explaining the means for improving the discharge D-type control surface, which is one of the recovery system mechanisms 6 l6 is a blade lever (see Fig. 7 (^)), and the boss portion 18a rotates around the set shaft 15. Can be installed freely. 16b is an arm portion, and 16e is a hook portion. Reference numeral 17 denotes a blade for wiping the surface on which the discharge port is formed, and can be formed of an elastic member such as silicone rubber or chloroprene (CR) rubber. 18 is a blade axis, and blade 1
7 is clamped at the center parallel to the rotation axis, and is rotatably attached to the blade lever 16. Also,
18a is a rotating piece, which is formed integrally with the blade shaft l8. An ink carrier 19 is made of a hydrophilic porous material (sintered plastic, urethane foam, etc.), and is fixed to the blade lever 16. Note that the blade l7 and the ink carrier 19 are arranged at a position overlapping a cap, which will be described later.

20 is a set lever, which is rotatably attached to the set @15. 20a, 20b are stops provided on the set lever 20 (M, 20c are also start teeth, 20
d is also a rotating tooth, and the thickness of the start tooth 20c is approximately half that of the other teeth. Reference numeral 20e designates an arm portion, and a set surface 20f and a reset surface 20g are formed by cutting a part of the arm portion in the plate thickness direction. 21 is a timing gear, which is rotatably attached to the base 50C by a support member (not shown).

As shown in FIG. 7(B), the timing gear 21 has stop teeth 20a. 2
A stop cam 21a is shaped for engagement with 0b. In addition, three types of drive teeth 21J, 2 with some missing teeth C are provided.
1J, 2lb* are formed, and a cap cam Hc for swinging a camp recorder, which will be described later, is formed at a predetermined position. In addition, a piston set cam 21f for suppressing the piston of Bonobu, which will be described later, is formed as a face cam, and the piston set cam 21f is also formed as a face cam.
Piston reset cam 2 at a predetermined interval corresponding to 1
1g is integrally formed.

Reference numeral 22 denotes an ink absorber spring, which is fixed at a predetermined position on the base 50, and as shown in FIG. have. 23 is an ink absorber;
Like the ink carrier 19 described above, it is made of a hydrophilic porous material. This ink absorber 23 is formed with a wiping portion 23a on which the blade l7 mentioned above comes into contact, and furthermore, an absorption surface 23b is formed on the lower part with which the above-mentioned ink carrier 19 comes into contact and transfers ink. ．． The absorber holding portion of the ink absorber spring 22 is pushed upward with some elastic force, and is locked in a predetermined position by a stopper (not shown). Therefore, when the ink carrier 19 mentioned above comes into contact with the ink absorber 23, the ink absorber spring 22 is bent and the ink absorber 23 is displaced downward, thereby ensuring the contact state.

Next, the recovery system unit, which is one of the recovery system mechanisms, will be described mainly with reference to FIGS. 8 and 9.

In FIGS. 8 and 9, 24 is a cylinder;
The guide part 2 has a cylindrical cylinder part 24a and a guide part 24b that guides a piston shaft, which will be described later.
4b, an ink flow path 2 is formed by cutting out a portion in the axial direction C.
4e is formed. 24d is a cap lever receiver, which is formed so that a lever seal, which will be described later, is fitted therein. Further, 24e is an ink flow path, which opens at a predetermined position within the cylinder portion 24δ. Reference numeral 24f denotes a rotating lever, which is formed on the cylinder 24 and is provided with rotating force by the spring portion 22b of the ink absorber spring 22 described above. Reference numeral 24g is a waste ink tube, which is formed in the body of the cylinder 24, and its tip is cut into an acute angle so that it can be easily inserted into the waste ink absorber described later. 24b is an ink flow path formed within the waste ink pipe 24g. 25 is a cylinder cap, which is pressed onto the end of the cylinder 24. 25a is a lever guide, which is arranged at a position facing the cap lever receiver 24d of the cylinder 24 mentioned above.

26 is a piston seal that is fitted into the cylinder 24, and its inner diameter is made slightly smaller so as to obtain a predetermined pressure contact with the piston shaft, which will be described later. Further, the sliding force of the piston shaft may be reduced by applying a lubricating coating to the surface.

27 is a piston shaft, and operation shafts 27a. Piston retainer 27b, piston receiver 27C, connection shaft 27d. and a guide shaft 27e are formed, and a groove 27f that closes the ink flow path is formed along the connecting shaft 27d and the guide shaft 27e.
It is formed as a beach at 27a. Furthermore, an Ihb receiving portion 27b with number 3 is provided on the end surface of the operating shaft 27a.

Reference numeral 28 denotes a piston, and the main body forming the inner layer from the cylinder sliding portion side is formed of an elastic porous material. This includes foams with single pores (such as sponges) and porous bodies with continuous pores such as continuous microporous materials, but continuous microporous materials such as open-cell foamed urethane foam are preferable. Can be formed. Further, a plurality of continuous pores may exist in a direction (or direction) that intersects the direction of elastic deformation.

The outer diameter thereof is made larger by a predetermined amount than the inner diameter of the cylinder 24, and when inserted into the cylinder 24, it is in an appropriately compressed state. Also, the outer peripheral surface 28a and the end surface 28b of the piston shaft 27 that comes into contact with the piston presser 27b.
The solid layer (skin film) used during foam molding of the piston is positioned in the piston.

Here, even if the member forming the piston body is foamed and communicated, the skin film does not communicate with liquid and maintains airtightness, so the piston 28 fulfills its function. In addition, as long as it does not have a skin film, a film for maintaining airtightness may be separately provided.

42 is the bomb chamber. 29 is a piston pressing roller, which is rotatably attached to the end of the piston glaze 27. 30 is a piston return roller, which is similarly rotatably attached to the end of the piston shaft 27. 31 is the axis of these rollers. 32 is a cap lever, and a rotation shaft 32a1, an ink guide 32b, and a lever guide 32c are formed. In addition, there is a convex spherical seal 32d at the tip.
is formed. Further, a pair of upper and lower members is provided with a retaining portion 32e for engagement with a claw of a cap holder, which will be described later. Further, the ink flow path 32fb<. It passes through the inside of the lever from the sealing surface 32d, bends at a right angle midway, passes through the center of the ink guide 32b, and opens at the end. Note that there is a notch 32g on the lower side of the ink guide 32b.
is provided.

Reference numeral 33 denotes a reper seal into which the ink guide 32b is fitted and pressed into the cap lever receiver 24d. 33a is a communication hole, which communicates the notch 32g of the ink guide 12b with the ink flow path 24e).

34 is a cap holder, and a hook 34a that engages with the engaging portion 32e of the kissep repper 32 is provided at a position facing the cap holder. 34b is an opening for attaching a cap, which will be described later. Reference numeral 35 denotes a cap, and a cap portion 35a is formed which serves as both a sealing cap for preventing normal ink from drying and a suction cap for ink suction. A suction port 35b is formed in the cap 35a and opens toward the cap holder 34 through the center of the cap 35. 35c is a flange portion, which prevents the cap from coming off when attached to the cap holder 34. Further, a concave spherical cap seal 35d having the same curvature as the sealing surface 32d of the cap lever 32 is formed on the flange portion 35c, and only the central opening communicates when the cap lever 32 is pressed. Then the others are sealed.

Since the seal portions (32d, 35d) are spherical, the cap member has an equalization function of f8, and even if there is a step in the discharge port shaped surface, the step is immediately absorbed to maintain a stable sealed state. can be kept.

Now, referring again to FIG. 2, 36 is a paper feed roller for conveying a recording medium such as paper, and is made by applying an elastic paint (urethane resin, acrylic resin, etc.) to the surface of, for example, a drawn aluminum tube. It can be shaped by Also,
This roller 36 functions on its outer surface as a platen that regulates the recording surface of the recording medium, and its interior serves as a storage section for waste ink. 37 is a waste ink absorbing section provided inside the roller 36, and is made of a thin tube made of plastic such as vinyl chloride (filled with an absorbing material such as polyester cotton, and is configured to absorb ink well in the axial direction. The waste ink pipe 24g of the cylinder 24 is inserted into the waste ink absorbing portion 37, but even if the recovery system mechanism moves with the movement of the base 50, the absorbing portion 37 is The absorbent fibers themselves are preferably made of a non-liquid-absorbing material such as resin or metal, but may be slightly liquid-absorbing.

38 is fluorocarbon resin. This is a paper press plate made of a material mixed with carbon i#i string, etc., and is divided into four parts as detailed in FIG. 3, and the chassis IC is mounted thereon. Also,
A gear 38B is fixed to one end of @38^ for releasing the pressing force of the paper press plate 38, and the other end engages with a bearing 38C that pivotally supports @38^. @The receiver 311c is fixed to the chassis 1. Note that the gear portion of the release lever meshes with the gear 38B, but is not shown here. 39 is a paper feed motor, which is connected to the paper feed roller 36 via a speed reduction mechanism with a predetermined ratio; 40 is a paper feed motor; Recording paper such as film.

Next, the operation of the above configuration will be explained. First, during normal recording operation, the lead screw 2 rotates via the timing belt 13 due to rotation of the shaft of the carrier motor l1, so the carrier 6 is moved toward the printing digit direction by the lead bin 7 engaged with the lead groove 28 so that the recording paper 40 scanned along. Here, since the carrier motor 1l is biased by {=j by the motor spring 14, the timing belt 13 is always tensioned and good transmission is achieved.

When moving the carrier 6, at the time of starting and stopping, an inertial force is exerted, but since the width of the carrier motor 1l absorbs this inertial force, the electric charge applied to the motor spring 14 is reduced, and the electric charge applied to the motor rotation is reduced. It also requires less load. Further, if an air damper or a hydraulic damper is provided in connection with this spring, noise caused by vibration of the rotor of the motor 11 when the carrier 6 is started or stopped can be reduced. The weight of this motor.
If the amount of electricity in the carrier portion and the coefficient of the motor spring damper are appropriately selected, rotor overshoot can be reduced and noise can be reduced.

Next, the operation of this embodiment during non-recording will be explained with reference to FIGS. 10 to 16. FIG. The operation timing of each part as shown in the figure can be determined.

FIG. 11 is a perspective view showing the detailed structure of the clutch gear 4 and the timing gear 2l mentioned above.
b slides on the lead screw 2 and rotates together with it.

Further, the clutch gear 4 is urged in the direction of the carrier 6 by a spring 5, and is normally in a predetermined position by the groove 2i of the lead screw 2 during recording and rotates together with the lead screw 2ε. When the recording head 9 moves to the home position, the clutch gear 4 is pushed by the carrier 6 and begins to engage with the timing gear 2l. The clutch gear 4 has a start tooth 4c and a normal drive tooth 4c2, a start i4c, and a drive fiI4C2.
The drive teeth 4c2 are not formed in the same manner all around the gear, but have a curved surface 4b in a part. .Furthermore, the end of the clutch gear 4 has a circumference C.
A brim 4a is formed across it. The timing gear 2l is as shown in Fig. 7 CB).
Start tooth 2lb, and 2 types of different positions.
- 'JJJ tJ 21bz. I have 21b3;
= Lera m2ib,,2lb2. 21ba is gear 2
1 at different positions in the width direction.

Figures 12 (^) to (C>. and Figure 13 (^).
(B) is a diagram showing a state in which the clutch gear 4 and the timing gear 21 are respectively engaged.

During normal recording, they are in an engaged state as shown in FIG. 12(A) and FIG. 13(8). However, at this time, the lth
In Figure 3 (^) C, lead bin 7 is not in the position.
Further, although not shown, a blade 17 and an ink carrier 19 are located above the ink absorber 23. At this time, the clutch gear 4 rotates with the rotation of the lead screw 2, but the start teeth 4c and 21bl are not in a positional relationship to engage with each other (Fig. 13(^))
reference). Therefore, the timing gear 21 does not rotate, and moreover, the drive i2lb2 and the collar 21h at the left end of the timing gear 2l are in a positional relationship that allows them to come into contact with the collar 4a of the clutch gear 4 with a slight gap, so the timing gear 21 does not rotate. Gear 2l cannot rotate in either direction.

This prevents the timing gear 2l from rotating unexpectedly even if some rotational force or human force is applied, and prevents errors in the operating position of the recovery system mechanism. I can do it.

When the recording head 9 moves 8ill toward the home position and the carrier 6 pushes the clutch gear 4, the positional relationship between the clutch gear 4 and the timing gear 21 becomes final (see FIG. 13).
B). In this process, the start tooth 4c.
and 21bl are in a positional relationship where they can be engaged (however, at this time, the lead pin 7 is not yet in this position). Next, the lead bin 7 moves from the groove 3c to the groove 3b (
Accordingly, the clutch gear 4 rotates clockwise in Fig. 12, and its positional relationship is shown from Fig. 12 (^) to Fig. 12 (C) e
The state changes sequentially to the state shown. At this time, start @4c
, 2lb, and 2lb are engaged, the curved surface part 4b as the south joining part shown in FIG. 11 is in the position closest to and facing the tying gear 2l. When the timing gear moves, the other drive teeth do not engage each other for the first time.

As a result, the gear engagement between the clutch gear 4 and the timing gear 2 always starts with the start teeth, and therefore the rotation of the timing gear 21 always starts from the correct position.

As a result, the operation of the recovery system mechanism driven via the timing gear 2l becomes accurate.

Further, there are advantages such as there being no need to increase the mounting accuracy of the clutch gear 4 and the timing gear 2l so much.

In addition, as shown in FIG. 7(8)C, the timing gear 21
Among the driving teeth, the driving teeth 2lb, which have different positions, are the driving teeth that engage when the curved groove 4b comes into contact with the timing gear 21 again. In other words, normal Kakeru! jI
These drive teeth are located at the same position as f#21b2, so they come into contact with the curved surface portion 4b, so the position is shifted and the drive teeth are engaged. Also, only the drive teeth engage.
C. While the timing gear 21 is rotating, the hook 6c attached to the carrier 6 moves by }Σ7 on the side surface of the timing gear 2l.

Second, for example, the lead pin 7 leaves the groove 3b before the predetermined teeth engage with each other.
can be prevented from moving away from the home position. This is because the lead screw rotates twice when the recording head 9 is at the home position and performs a series of recovery processes, so the lead bin 7 may move to the clearing 3c.

In addition, in the above example, the series of recovery processing is performed using the lead screw 2.
Although the rotation is performed in this embodiment, the rotation is not limited to this, and any rotation can be set, thereby increasing the degree of freedom in designing the clutch mechanism and the like.

Figures 14 (^) - (D) are explanatory diagrams showing the sequential operating states of the mechanism related to the blade 17 etc., Figures 15 (^) - (C)
16 (^) and CB) are explanatory diagrams showing the sequential operating states of the mechanism related to the cap 35.
13 is an explanatory diagram for explaining the operation of a mechanism for introducing waste ink into the waste ink storage section 37 in 6, and the operation will be explained with reference to these figures and FIGS. 12 and 13 described above.

First, the carrier 6 moves toward the home position (in the direction of arrow B). At this time, as shown in Fig. 13 (^), the lead bin 7 is engaged with the lead groove 2a, and the ejection port 9c of the head element 9a is opposed to the ink carrier 19 (see Fig. 14 (^)). It is located in the same position. At this position, all of the ejection energy generating elements of the head element 9a are driven to perform an ejection operation (hereinafter referred to as preliminary ejection), and the slightly thickened ink is ejected with the ejection force.
This preliminary ejection (recovery operation) can be completed. Preliminary ejection is also performed periodically at this position to prevent ink from increasing in viscosity in unused ejection ports during normal printing. (^) is a side view of the surrounding area at the same position.Furthermore, as shown in Figure 13 (8), when the lead screw 2 is rotated and the carrier 6 is moved in eight directions, the clutch Gear 4 is pressed, and it moves in the B direction as well, and its start south 45 is timing gear 21.
This is a position where it can be held with the start tooth 2lb. After that, the clutch gear 4 rotates in synchronization with the lever 1 and the screw 2, and the start teeth engage with each other, causing the timing gear 2l to rotate.
rotates in the D direction as shown in FIG. 14(B). On the other hand, lead bin 7 is in position f43b from introduction yl3c.
Since the lead screw 2 is inserted into the lead screw 2, the carrier 6 does not move even when the lead screw 2 rotates. When the tie gear 21 rotates in the D direction, the set lever 20 begins to rotate in the E direction because its gear portion and the gear portion of the set lever 20 are engaged with each other. Up until this point, the hook portion 16c of the blade lever 16 is engaged with the claw portion of the chassis, so only the set lever 20 rotates.
The blade lever 16 is stopped, but eventually the set surface 20f of the set lever 2o pushes down the rotating piece 18a of the blade shaft 18 and rotates in the F direction, so the blade l7 rotates in the G direction and discharges. 11 and is set in a state where it can engage with the object.

When the timing gear 21 further rotates in the D direction, the hook portion l6 of the play 1 lever l6 comes off the pawl of the chassis, and the set lever 20 and blade lever lδ also rotate further, causing the plate 17 to rotate as shown in Figure 7iJ14 (C). The ejection port surface of the head 9 is wiped with the cleaning method. At this time, the ink liquid and the like that are removed by wiping the plate 17 are removed only in one direction, that is, in this case, only downward, and the removed ink liquid and the like are absorbed or retained in the upper part of the ink carrier 19. Also, at this time, the ink carrier 19 begins to come into contact with the ink absorber 23. When the set lever 20 further rotates, the ink carrier 19 and the blade l7 slide against the surface of the wiping portion 23a of the ink absorber 23, as shown in FIG. 14(D). ink,
When the dust and the like wiped by the blade l7 from the ejection orifice forming surface is received by the wiping portion 23a, ink droplets adhering to the ejection orifice surface are also absorbed. Thereby, the ink absorbing ability of the ink carrier 19 can be maintained for a long period of time.

Further, the timing gear 21 rotates in the D direction, but since the stops i20a, 20b of the set lever 20 and the stop cam 21a of the timing gear 2l face each other and contact each other, the rotation of the set lever 20 is restricted. At the same time, since the driving teeth of the timing gear 2l are in the cut-out part, no force is applied to rotate the timing gear.

As mentioned above, since the blade and the absorber that holds the ink liquid etc. removed by the blade are the same as the ink receiver during preliminary ejection, the device can be made smaller and the time required for these recovery operations can be shortened. can. When the timing gear 21 rotates further, the cap cam 21c of the timing gear 2l initially restricts the rotating shaft 32a of the cap lever 32e shown in FIG. 8, so the cap rotates as shown in FIG. 15(^). 35 is stopped at a position away from the discharge port surface of the head element 9a. Next, when the timing gear 21 moves further in the D direction, it comes off from the cap cam 21c, so the regulation state changes to F.
I? Therefore, as shown in FIG. 15(B), the rotation lever 24f of the cylinder 24 is urged by the spring portion 22b of the ink absorber spring 22, and the cylinder 24 rotates in the direction F, and the cap is removed. :+5 cap portion 35a comes into pressure contact with the discharge port surface, and the capping operation is completed. Note that FIG. 13(B) shows a top view at this time. At this time, the sealing surface 32d and the cap sealing surface 35d are also tightly sealed due to the pressing force of the cap. Now, the above is the cleaning and capping operation of the nozzle. Normally, the nozzle stops here, and in response to the input of the next recording signal, the above operation is performed in reverse, and the recording operation begins. Next, we will discuss the suction recovery operation that is performed when the ejection condition is not improved even after E preliminary ejection.

When starting this, the timing gear 21 is further rotated from the cap position, and the cap lever 32 is pressed by the cap cam 21f, so that the cap 35 is slightly separated from the discharge port forming surface as shown in FIG. 15(C). .

When the timing gear 21 further rotates in the D direction, it comes off again from the cap cam 21f, so the cap portion 35a
is in pressure contact with the discharge port surface. Now, talking about the pump operation, when the recovery operation starts after the aforementioned sealing cap is completed, the suction operation starts. At this time, first, due to the rotation of the timing gear 21, the piston set cam 21g pushes the piston pressing roller 29 attached to the piston shaft 27, so the piston shaft 27
moves in the H direction as shown in Figure 16(A). Then, the piston 28 is pressed by the piston holder 27b and moves in the direction (2), and the bomb chamber 42 becomes under negative pressure. Since there is a skin layer on the outer periphery of the piston 28 and the contact surface with the piston holder 27b, ink will not leak through the communication hole of the foam material.

Further, the ink flow path 24e of the cylinder 24 is connected to the piston 28.
, the piston 28 is in a movable state only by increasing the negative pressure in the bomb chamber 42. on the other hand,
After the above-mentioned recapping, as shown in Figure 16 (^) (
, since the ink flow path 24c is opened, the ink in the head 9 is sucked through the suction port 35b of the cap 35. The sucked ink passes through the ink flow path 32f formed inside the cap lever 32, passes through the communication hole of the lever seal 33,
Further, the ink flows through the ink flow path 24e of the cylinder 24 and flows into the bomb chamber 42C.

When the timing gear 21 is further rotated, the cap 35 is moved slightly away from the discharge port surface by the cap cam 21h again, and due to the residual negative pressure in the pump chamber, the discharge port surface and the cap portion 35
The ink inside a is suctioned to eliminate any remaining ink in these areas.

Next, when the timing gear 21 is rotated in the opposite direction (the direction indicated by the arrow ■ in FIG. 14(D)), the piston reset cam 21i pulls the piston return roller 30, and the first
6. Move the vist shaft 27 in the direction of arrow J as shown in Figure (B). At this time, since the piston 28 moves after coming into contact with the piston receiver 27c of the screw L shaft 27, a gap Δ° C. is created between the end surface 28b of the piston 28 and the piston retainer 27b.

As a result, the waste ink sucked into the bimp chamber 42 due to the non-hyperaction of the hestone drawer 27 and the hestone 28 passes through the above-mentioned gap Δi and enters the piston shaft at 7142.
7f, passes through the ink flow path 24c of the cylinder 24,
Furthermore, the waste ink is discharged to the vicinity of the center of the waste ink absorber 37 through the waste ink pipe 24g. Note that at this time, the piston 28
Since the ink flow path 24e of the cylinder 24 is closed by the piston 28 at the beginning of the operation, waste ink will not flow back toward the cap.

FIG. 17 collectively shows the sequence of the preliminary ejection or suction recovery described above. However, in the figure, blade 17
is in a state where wiping is possible (set state. Fig. 14 (B)
), and after wiping, the blade 17 is tilted relative to the absorber 23 (reset state. Fig. 14 (^
), and then immediately before the set lever 20 returns to its original position, the blade l7 is brought into a set state in which wiping is possible.

Next, referring to FIGS. 3(^) and 3(B), the recording paper conveyance mechanism from recording to IJJ paper in the Kinotsu travel example apparatus will be explained.

In these figures, 3R is a paper press plate made of fluorocarbon resin, carbon fiber mixed material, etc., as described above, and it presses the recording paper against the ejection surface D of the recording head 9 and the recording paper by applying a pressing force to the recording paper being fed. have a predetermined interval.

The pressing force of the paper press plate 38 is due to the elastic force of the spring plate 38b. The details of this mechanism are shown in Figure 18 (A) and (
Shown in B).

FIG. 18(^) is a diagram showing a state in which the paper presser plate 38 is applying a pressing force to the paper feed roller. In this case, a part of the circumference is linear (has a D-shape with a notch, and the notch part of the shaft 38A that can slide in the rotational direction with the paper press plate 38 is connected to the spring plate 38.
At this time, the end 38E of the paper press plate receives a biasing force upward in the figure by the spring plate 38D. As a result, the paper presser plate 38 attempts to rotate clockwise around the shaft 38^, applying a pressing force to the paper feed roller 36.

On the other hand, FIG. 18(B) does not show the state in which the pressure force produced by the paper presser plate 38 is divided by the angle q. At this point, the shaft 38A rotates, and the arc portion of the fill 138A presses the end 'J8F. At this time, the entire spring plate 380 is pushed down in the figure. As a result, the end portion 38E is connected to the spring plate 380.
It does not receive any biasing force from.

When this urging force is released, the sleeve 388 and the paper press plate 38 remain engaged with each other with a certain amount of frictional force, so the paper press plate 38 does not change its rotational position significantly. Even when it becomes necessary to release the pressing force of the paper press plate 38 due to kneading, the paper press plate does not interfere with the movement of the recording head.

Further, the paper pressing mechanism described above is a mechanism capable of applying a pressing force that does not prevent the paper feed roller 36 from properly conveying the recording paper within a limited space. In other words, without using an elastic member in the paper press plate itself,
The pressing force is normally applied to the bottom chassis 1 of the device, which is a dead space.
Since the pressure is generated by a leaf spring arranged along the top, the degree of freedom in determining the pressing force is increased by adjusting the length of the leaf spring, and the paper pressing member can be made smaller.

Note that the leaf spring 38D is attached to the chassis l by a fixing member (not shown).

L, 60, referring again to Figures 3 (8) and (11)
61 is a paper ejection roller for ejecting recorded recording paper;
is a spur for applying a pressing force to the recording paper conveyed by the paper discharge roller 60, regulating the discharge direction of the recording paper, and generating a conveyance force.

62 is disposed at an intermediate portion between the #jt paper roller 60 and the paper feed roller 36, and is a paper ejection roller 6 that is rotated by the paper feed roller 36.
This is a transmission roller for transmitting to 0. These rotations are transmitted by frictional force caused by mutual contact. The paper ejecting roller 60 has a cylindrical shape with different radii at both ends and a middle part, and the transmission roller 62 abuts on the middle part of the paper ejecting roller 60 where the diameter is smaller. Therefore,
Both ends of the larger diameter part that transport the recording paper rotate at a peripheral speed slightly higher than the peripheral speed of the paper feed roller 36. As a result, when the recording paper is ejected, the recording paper is conveyed with great force, making it possible to form a good recording.

Note that coil springs having appropriate elastic coefficients are used for the rotation shafts of the transmission roller 62 and the spur 61, respectively. The details of the mechanism will be explained with reference to FIG. 19, taking the case of the spur 6l as an example.

In FIG. 19, 618 is a coil spring and the spur 6
An axis passing through the center of l and extending on both sides of the spur 6
1 and are rotatably engaged with each other. I03B is rotation @6
This is a shaft supporting member that pivotally supports both ends of the shaft 1A, and is formed as a part of the inner lid 103 shown in FIG. Axial support material 103B
The shaft 618 is slidably supported in the axial direction. 103
C is a regulating member for regulating the movement of the spur 61 in the direction of the rotation axis and in a direction perpendicular thereto, and is provided on both sides of the spur 61. The regulating member LO3C is also formed as a part of the inner M103 similarly to the shaft support member 103B.

With the above configuration, the shaft [i1A supports the spur 6l, and also obtains the pressing force of the spur 6l against the paper ejection roller 60 by its bending elastic force. The inner rim 103 has a spring member +03A at its rear end, as shown in FIG. Due to the interaction between this pressing force and the elastic force of the rotating shaft 6l^, the spur 6l
applies an appropriate pressing force to the paper discharge roller 60.

In addition, when the inner ito:+ receives the above pressing force,
As shown in Figure 3 (^), fixing member lQ3 of inner Fxo3
The engagement between D and the quadrilateral rotation shaft 60C of the paper ejection roller 60 is ensured. As a result, the positional relationship between the spur 6l and the paper discharge roller 60 is always kept constant. Alternatively, by fixing the rotating shaft 60C against a member to be latched, a good relationship of accuracy can be maintained regardless of the accuracy of nM. In the transmission roller 62, the rotary shaft 62^ made of a coil spring has the same function, and the elastic force of the shaft 62^ provides a contact force to the paper feed roller 36 and the paper discharge roller 60.

As described above, the paper discharge roller 60 has a shape in which the diameter of the middle portion is smaller than that of both ends. The details of this precept are explained in Chapter 20.
As shown in the figure.

In Fig. 20, 560^ is a cover member made of a rubber material, and 6GD is a cylindrical core member whose diameter is smaller at the middle part than at both ends. The paper discharge roller 60 is formed by covering the core member 600 with a pipe-shaped cover member 6OA.

As a result, the paper ejection roller can be obtained relatively easily and at low cost without having to temporarily shape the shape with a rubber member or the like.

Note that the groove portion 60B that is continuously provided at one end of the paper ejection roller 60 can catch the terminal end of the recording paper when it is ejected by the paper ejection roller 60, and prevents the recording paper from being misaligned. It is possible to ensure that the paper is ejected reliably. Note that the shape of the core member 600 is not limited to the above-mentioned shape, and for example, it may be a shape that is an extension of the shape of the groove portion BOB, with the intermediate portion being made smaller, or a cylindrical shape may be obtained by covering with a rubber material. Next, the case where the wood-based ink cartridge recording apparatus is used in an upright position will be explained with reference to FIGS. 21 and 22. When the apparatus is used in an upright position, there are cases in which it is used with an auto feeder 200 as shown in these figures, and cases in which thick paper such as envelopes is fed from the paper feed port on the back side of the apparatus.

In the case of normal recording paper that uses an auto feeder, the upper lid 102 can be used as a stacker for the discharged recording paper. At this time, as shown in FIG.
Fix it at a different angle than when using it as a paper guide for feeding paper. The conditions when using the upper M102 as a stacker are as follows. That is, the position where the ejected recording paper is conveyed through the air to some extent by its own straining strength and comes into contact with the upper film 02 or the already stacked recording paper is the upper end 10 of the upper lid 102.
Make it close to 2^. As a result, only the leading edge of the ejected recording paper slides on the already stacked recording paper, etc., and sliding can be avoided as much as possible, and the unfixed ink C stains the recording paper. can be prevented. The configuration for this is that the upper end 102^ is located near the common tangent line between the paper feed roller 36 and the ↑J# paper roller 60 in the paper ejecting direction, that is, in the case of a wooden example, and the lower end 102tl is lowered. is a requirement.

Further, when the trailing edge of the recording paper stopped on the upper end portion 102^ is completely discharged, it is lowered at that position and stacked without rubbing.

The configuration for this requires the length of the soil M102 in the paper discharge direction (length from the top end 102^ to the bottom 4102B), and using recording paper that is commonly used, the paper can be discharged almost horizontally as in the wood example. When paper is used, its length is 60% to 90%, more preferably 70% to 80%, of the length of the recording paper.

Note that if the configuration of the recording device or usage conditions are different and the paper ejection direction is different from the above, the length of the stacker may be determined while taking the first requirement above into consideration. Further, reference numeral 108 shown in FIGS. 21 and 22 is a roll-in prevention piece, which prevents the stacked recording sheets from entering the paper feed port 106. Next, the above-mentioned recording head 9 and carrier 6 in 8Y size will be explained with reference to FIGS. 23 to 28.

FIG. 23 shows an external perspective view of the recording head 9 that integrates the ejection element 9a and the ink tank 9b. In the figure, SO6e is a hook provided on the carrier 6 when the recording head 9 is attached It is a pawl that is latched by. As is clear from the figure, the pawl 906e is disposed inside the entire extension of the recording head. Further, although not shown in this figure, a positioning abutment portion is provided near the front ejection element 9a of the recording head 9.
This is a head opening into which a support plate for supporting a flexible substrate and a rubber pad is inserted into the carrier.

Figures 24 (^) and (B) are exploded perspective views of the inkjet recording head shown in Figure 23, and as described above, it is a disposable type with an integrated ink storage section serving as an ink supply source. be.

In the same figure (^). 110 is an electrothermal conversion element (discharge heater) on a Si substrate, and an AJ that supplies power to it.
This is a heater board in which a second grade wiring is formed using a film forming technique. Reference numeral 210 is a wiring board for the heater board 110, and corresponding wiring is connected by wire bonding, for example.

400 is a top plate provided with partition walls and a common liquid chamber to limit the ink flow path, and in the wooden example, it is made of a resin material with an integrated orifice plate part. For example, 300 is a metal support, and 500 is a pressing spring. By sandwiching the heater board 110 and the top plate 400 between them and engaging them, the urging force of the pressing spring 500 causes the heater board 100 to Top plate 4
00 is crimped and fixed. Note that the support body 300 may also have the wiring board 210 attached thereto by adhesion or the like, and may also have a positioning reference for the carrier 6 on which the head scans.

The support body 300 also functions as a member that radiates and cools the heat of the heater board 110 that is generated during driving.

600 is a supply tank, which receives ink supply from the ink storage section 9b serving as an ink supply source, and which receives ink from the heater bow FIIO.
It functions as a sub-tank that guides ink to a common liquid chamber formed by joining the top plate 400 and the top plate 400. 700 is a supply tank near the ink supply port to the common liquid chamber; 800 is a filter disposed inside the supply tank 600; 800 is a supply tank 600
This is the lid member.

Reference numeral 900 denotes an absorber for impregnating ink, and is disposed within the ink tank body 9b. Reference numeral 1200 is a supply port for supplying ink to the ejection unit 9a consisting of the above-mentioned parts 110 to 800, and ink is supplied from the supply port 1200 in a process before placing the unit L in the part 1010 of the ink tank body 9b. By injecting the ink, the absorber 900 can be impregnated with ink. The port GO is a lid member of the cartridge body, l400 is an atmosphere communication port provided in the lid member to communicate the inside of the cartridge with the atmosphere, 1300 is a liquid repellent material disposed inside the atmosphere communication port 1400, As a result, atmospheric transport port l4
Ink leakage from 00 is prevented.

When the filling of ink into the ink tank 9b via the supply port 1200 is completed, the ejection unit 9a consisting of each part 110 to 800 is partially turned off! Arrange it by adding place jl\ to 0.

Positioning or fixing at this time can be performed, for example, by fitting the protrusion 1012 provided on the ink tank end body 9b and the corresponding hole 312 provided on the support hole 300. The cartridge-shaped recording head 9 shown in FIG. 24(B) is completed.

And, the 7th link is from the cartridge Uchiro at the supply port 120.
0, 320 provided on the support 300 and the supply tank 60
Figure 24 (^) of 0: The ink is supplied into the supply tank 600 through the inlet provided on the back side, and after passing through the inside, the ink is supplied from the outlet to an appropriate supply pipe and the ink inlet 420 of the top plate 400. λ flows into the common liquid chamber through the . A packing made of silicone rubber, butyl rubber, etc., for example, is provided at the connection part for ink communication in the above (11), and this seals and secures the ink supply path. Fig. 25 (^) ~ (C) is a top view, a left side view, and a right side view showing details of the carrier 6, respectively.

In these figures C, 606 is a support plate erected at the bottom of the carrier 6, and a flexible substrate 604
, and supports a rubber bat 605 having protrusions 605A provided corresponding to terminal pads formed on the substrate 604. Reference numeral 607 denotes an abutting member that is also erected at the bottom of the carrier 6 in front of it. The abutment member 607 is formed to have a thin wall thickness in order to secure as much space for the ink tank as possible within the limited installation space of the recording head and carrier. For this reason, 6
The 07 has three wooden ribs 608 to ensure strength. The direction in which the ribs 608 extend corresponds to the direction in which the carrier 6 moves so that it has strength corresponding to the movement in the rotating direction when the recording head is attached and detached. Also, rib 608
is 0 from the ejection surface when the recording head 9 is installed.
, 1 is projected to come forward by the same amount. As a result, even if the recording paper protrudes into the moving path of the recording head due to some action, it is possible to prevent the recording paper from rubbing against the ejection surface and causing damage. Reference numeral 602 denotes a contact lever for attaching and detaching the recording head, and is pivotally supported by a rotatable lever 601d provided on the wooden body of the carrier 6.

Reference numeral 603 denotes a contact hook for attaching and detaching the recording head 9, which is partially engaged by the movement of the contact lever 602.

The hook 603 performs the above-mentioned attachment/detachment operation by having an elongated hole 603c formed therein guided by a guide shaft 601c provided in the wooden body of the carrier 6. Since the attachment/detachment operation mechanism consisting of the contact lever 602, the contact hook 603, etc. is provided on the side of the carrier 6, that is, on the side in the moving direction of the carrier 6, the attachment/detachment operation mechanism does not form a large dead base due to the movement of the carrier. There is no.

Next, a description will be given of the abutting portion for positioning when the recording head is attached.

Reference numeral 601a denotes abutment portions for positioning in the left and right direction, and two abutment portions 601a are provided on the sides of the abutment member 607. Note that for positioning in the left and right direction, an abutment part 601f provided on a support plate 606 km is used in addition to the abutment part 601a.

60lb is an abutting portion for positioning in the front-rear direction, and is formed at the lower side of the abutting member 607.

Reference numeral 601C denotes abutment portions for vertical positioning, which are formed at two locations, one on the lower side of the abutting member 607 and one on the lower side of the support plate.

26(^) and (B) are a top view and a left side view, respectively, showing the state when the recording head 9 is attached to the carrier 6. In these figures, 906a indicates the recording head 9 so that it can come into contact with the abutting portion C of the second carrier 6 when the recording head is attached.
906b and 906C are abutting portions provided in the abutting portions 60lb and 601C, respectively. The engagement of each part when the recording head is mounted will be explained below with reference to FIG. 26(^). The abutting portion 906a of the recording head 9 is in contact with the abutting portion 601a of the carrier 6, and at the same time, the claw 906 of the recording head 9 is connected to the coil spring 60 via the hook 603 fixed thereto.
Due to the biasing force 7, a force is applied to the left in the figure. As a result, the recording head 9 receives a moment force centered on the abutting portion.

At this time, the substrate 906d provided on the recording head comes into contact with the abutting portion 601f, and as a result, the recording head 9 is positioned in the left-right direction and the position is maintained.

At this time, the protrusion 605A of the rubber pad 605 is compressed and deformed by contact with the substrate 906d. This deformation causes the terminal pads of the flexible substrate 604 and the substrate 9 to
A force is generated that presses the terminal 06d. In this case, since the substrate 906d is in contact with the abutment portion 601f, the amount of deformation of the protrusion 605^ is constant, and the above-mentioned stable pressure contact force can be obtained. Note that the above figure does not show the compressed and deformed state of the protrusion 805A. Furthermore, as will be described later, the positioning of the recording head 9 in the front-rear and up-down directions has already been done during the mounting process.

FIG. 27 is a top view showing the carrier before the recording head is attached, and the contact lever 602 is omitted in this figure. The state shown in the same figure is the state in which the contact lever 602 is pulled backward (see Fig. 25 (8)), and at this time, the contact hook position is as shown in Fig. n, and the recording head is in this position. Wait for it to be loaded. FIGS. 28(^) to (C) are top views showing the process of mounting the recording head in order. It is loaded from above. At this time, as shown in FIG. 28(^), the abutting member 607, the support plate 606, and the contact hook 60
3, the total extension of the recording head 9 and the opening 9
06f, the recording head 9 is accommodated in the carrier 6 in an oblique state. Next, when the contact lever 602 is rotated counterclockwise (see FIG. 25 (81)), the contact hook 603 rotates counterclockwise around the shaft 601c, and then moves to the left when it becomes horizontal in the figure. The state shown in FIG. 28 (8) is reached.

Along with this movement of the contact hook 603, the recording head 9 moves the contact hook 603 diagonally upward to the left in the figure.
It is pushed away by contact with. As a result, the abutting portion 90ha of the recording head becomes the abutting portion 601a of the carrier.
The abutting portion 906b rides on the abutting portion 60.
Contact with lb. At this time, the substrate 906d and the flexible substrate 604 are not in contact with each other. Further, as the contact lever 602 is rotated counterclockwise, the contact hook 603 further moves to the left. At this time, since the recording head 9 moves while retaining the claw 906c, the recording head 9
The recording head 9 rotates clockwise with the center of rotation as shown in FIG. 28(C), and the position of the recording head 9 on the carrier 6 is determined. Note that the forward/backward and vertical positions are determined during the series of movements in the wearing process described above. 28th
In the state shown in FIG. The recording head 9 is fixed to the carrier 6.

As is clear from the above, mounting the recording head using the wooden example is a combination of linear motion and rotational motion of the recording head, and the rotational deviation angle is about 5 degrees.

In other words, since the recording head is mounted with a slight rotation angle, no special space is required for mounting the recording head. Next, the relationship between the contact lever and the contact hook will be explained with reference to FIGS. 25(A) and 26(A). As shown in these figures, the contact lever 602 has two
It has two flat parts 602a, 602b and one slope (cam surface) 602c, and when the recording head is fixed (see FIG. 28(C)), the flat surface 602a engages with a portion 603a of the contact hook 603. On the hook 603 (
= 1 force is transmitted.

Furthermore, the relationship between the lever 602 and the hook 603 will be explained in the process of attaching and detaching the recording head. When the contact lever 602 is rotated in the opposite direction to the mounting process from the state shown in FIG. 76(^), the cam surface 602 of the contact lever
c rotates while contacting the cam 603b of the contact hook. Along with this, the contact hook 603 moves to the right until the left end of its long length 603c hits the carrier shaft 601c, and then rotates @60lc clockwise around the center C so that the contact surface of the contact lever 602 is flat. 6
02b, the cam surface 603 of the contact hook
It hits the end of b, resulting in the state shown in Figure 25 (^). In addition, in the process from FIG. 26(^) to the state of FIG. 25(A), the recording head 9 is pushed out by the contact hook part [i03d. (Others) The present invention brings about excellent effects particularly in a bubble jet type recording head and recording apparatus among inkjet recording types.

According to this method, recording density can be increased. This is because high definition can be achieved, and it is expected that the fixing speed will be even slower depending on the recording pattern.

For its typical configuration and principle, see, for example, US Pat. No. 4,723,129. It is preferable to use the basic principle disclosed in the specification of the same No. 4740791i. This method can be applied to both the so-called on-demand type and the continuous type, but especially in the case of the on-demand type, it is necessary to arrange the liquid (ink) in accordance with the sheet and liquid path that hold it. By applying at least one drive signal that corresponds to recorded information and causes a rapid temperature rise exceeding nucleate boiling to the electrothermal transducer, the electrothermal transducer generates thermal energy, and the recording head This is effective because it causes film boiling on the heat-active surface of the drive signal, resulting in the formation of bubbles in the liquid (ink) that correspond one-to-one.The ejection opening is opened by the length and contraction of these bubbles. A liquid (ink) is ejected through the ink to form at least one drop.If this drive signal is in the form of a pulse, the growth and contraction of the bubble will occur immediately.
In particular, responsiveness &: excellent ejection of liquid (ink) can be achieved, which is more preferable.
The one described in the specification of No. 62 (the one described in the above specification is suitable). Furthermore, if the conditions described in the specification of US Pat. Excellent recording can be performed.The structure of the recording head is a combination of ejection ports, liquid paths, and electrothermal transducers (linear liquid flow path) as disclosed in the above-mentioned specifications. The present invention also includes a structure using US Pat. No. 4,558,333 and US Pat. No. 4,459,600, which disclose a structure in which a heat acting part is disposed in a bending region, in addition to a perpendicular liquid flow path). In addition, Japanese Patent Application Laid-Open No. 5 (1973) discloses a structure in which a common slit is used as a discharge part of a plurality of electrothermal transducers.
The effects of the present invention are also effective even if the structure is based on JP-A-59-1384-fil, which discloses a structure in which an opening for absorbing pressure waves of thermal energy corresponds to a discharge part. be. In other words, regardless of the form of the recording head, recording can be performed reliably and efficiently. In addition, regarding the type and number of recording heads installed, for example, in addition to a single head that corresponds to a single color of ink, a plurality of heads that correspond to multiple inks of different recording colors or densities may be installed. In addition, the inkjet recording apparatus of the present invention may be used as an image output terminal of information processing equipment such as a computer, a copying apparatus combined with a reader, etc. It may also take the form of a facsimile device having transmitting and receiving functions. [Effects of the Invention] As is clear from the above description, according to the present invention, in order to enlarge the mounted ink tank, for example, the abutting member is Ribs are provided to reduce the wall thickness and reinforce this strength.

Furthermore, by protruding the provided ribs further forward than the protruding surface, it is possible to prevent the protruding surface from being damaged by the recording paper. As a result, the length of the recording head mounting space in the direction perpendicular to the direction of movement thereof, which is limited due to the miniaturization of recording apparatuses, can be effectively utilized.

[Brief explanation of drawings]

FIG. 1 is an external perspective view showing an embodiment of an inkjet recording device according to the present invention, and FIG. S2 is a perspective view showing the main parts of the device shown in FIG. Figure 3 C^) is a perspective view showing the main C paper discharge system of the apparatus shown in Figure 1, Figure 3 (B) is a side view of the figure shown in Figure 3 (^), and Figure 4 Figures (^) and ([l) are side views showing an embodiment of the recording head corresponding to recording paper C, respectively, and Figure 5 (^)
and (B) are rear views showing one embodiment of the 63 head in the Baume position corresponding to the recording paper, respectively. FIG. FIGS. 7(^) to (C) are partial perspective views showing an example of the actual travel of the blade and ink carrier to the recording head. FIGS. 8 and 9 are respectively the recording An exploded perspective view and a sectional view showing an embodiment of the suction recovery system for the head, FIG. 10 is a timing chart showing the operation timing of each part related to the embodiment, and FIG. A perspective view showing an embodiment of the clutch mechanism, Fig. 12 (^) - (
C) is a side view showing the engagement state of the clutch gear, hook, and timing gear in the clutch mechanism shown in FIG. Figures 14 (^) to (DJ are side views for explaining the sequential operations of the blade and ink carrier section, Figure 15)
Figures (8) to (C) are side views for explaining the sequential operations of the cap section, and Figures 16 (^) and (B) are side views for explaining the operations of the bomb section for performing suction recovery. 17 is a timing chart explaining the sequence during preliminary discharge warming and suction recovery processing for wood examples (some other examples), and FIGS. 18 (^) and (B) are paper presser plates. Fig. 19 is a side view showing an embodiment of the pressing mechanism; Fig. 19 is a perspective view showing an embodiment of the supported state of the spur in the paper ejection system; Figure 2O is a front view showing an embodiment of the paper ejection roller. , 21st
22 is a side sectional view of the state shown in FIG. 2l, and FIG.
The figure is an external perspective view of the recording head mounted on a wooden example, Figure 24 (8) and (B) are an exploded perspective view and an external perspective view of the recording head mounted on a wooden example, and Figure 25 (^) ~(C) is a top view, a left side view, and a right side view of the carrier for a wooden example, and FIG. 26
(^) and (B) are a top view and a right side view, respectively, showing the state in which the recording head is attached to the carrier shown in FIG. 25, and FIG. 27 is the state of the carrier according to this example before the recording head is attached. 28 (^) to (C) are top views showing the mounting process of the recording head in order. 1... Chassis 2... Lead screw 2a... Lead Groove, 3a... Lead pulley, 22... Ink absorber spring, 23... Ink absorber, 24... Cylinder, 27... Piston shaft, 2B... Piston, 29... Piston pressure Roller, 32... Cap lever 34... Cap holder, 35... Cap, 3Sa... Cap section, 36... Paper feed roller, 37... Waste ink absorber section, 3 8-.・Paper presser plate, 40... Recording paper, 50... Base, 51... Guide shaft, 60... Paper ejection roller, 6 To... Spur, 62... Transmission roller, 100... Inkjet recording device, 3b...position structure, 3C...introduction groove, 4...tallage gear, 5...clutch spring, 6...carrier, 6c...hook, 7...lead bin, 9 ... Recording head, 9a... Head chip (discharge element), 9b...
・Ink tank part, 9C...Discharge port, 9d...Discharge port forming surface, 1L...Carrier motor, l3...Timing belt, 15...Set shaft, l6...Blade lever l7・...Blade! 9... Ink carrier, 20... Set lever 2l... Timing gear, 102... Upper lid, 103... Inner lid, 601a, 60lb, 601c, 601f --- Abutting portion, 602... - Contact lever 603 -- Contact hook, 604 -- Flexible board, 605 -- Rubber pad, 60 [i -- Support plate, 607 -- Abutting member, 608 -- Rib, 906 a, 906 b, 906c---Abutting part, 906d
... Board, 906e... Pawl. Fig. 3 (B) Fig. 4 Fig. 5 Fig. 210 Fig. 13 22a 9σ Fig. 15 Fig. 20 60 Fig. 23 Fig. 25 (A) Fig. 26 (B) Fig. 27 607q No. 28 Figure (A) Figure 28 (C)

Claims (1)

[Scope of Claims] 1) In a carrier for moving along a predetermined path on which an inkjet recording head with an integrated ink tank is removably mounted, an abutting member erected in front of the carrier, A carrier comprising an abutting member having a rib extending in the moving direction of the carrier, which projects forward from the ejection surface of the recording head when the head is attached. 2) An inkjet recording head that is detachable from the carrier according to claim 1. 3) An inkjet recording head according to claim 2, wherein the inkjet recording head ejects ink droplets using heat generated by an electrothermal transducer.