JP4658385B2 - Recording device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording apparatus that performs recording by discharging ink from a recording head, and particularly relates to a recording apparatus that uses a long head.
[0002]
[Prior art]
A conventional configuration is shown in FIGS.
[0003]
FIG. 5 is a sectional view for explaining a conventional structure, and FIG. 6 is a sectional view taken along line AA of FIG.
[0004]
101 is a cap, 102 is a recovery rod, 103 is an ink suction port, 104 is a joint, 105 is a tube, 106 is an inclined portion, 107 is an ink guide, 108a and 108b are adhesive surfaces, 109 is a spring, 110 is a stopper, 111 is The recording head 112 is a comb tooth.
[0005]
The cap 101 is bonded to the recovery rod 102 with bonding surfaces 108a and 108b.
[0006]
The recovery rod 102 has an inclined portion 106 on the bottom surface, and an ink guide 107 and a spring 109 are arranged inside.
[0007]
The ink guide 107 is configured to be biased upward by a spring 109 and not to protrude further by a stopper 110.
[0008]
An ink suction port 103 is formed on one side of the recovery rod 102, and a joint 104 and a tube 105 are connected to the tip.
[0009]
In the standby state or the recovery state, the recording head 111 is brought into contact with the cap 101. Further, both ends of the ink guide 107 are brought into contact with the recording head 111, and the comb teeth 112 can keep a constant distance (about 0.5 mm) from the recording head 111.
[0010]
Next, the operation will be described.
[0011]
In the standby state, this state is maintained, and the recording head 111 is kept sealed with the cap 101.
[0012]
In the recovery state, the ink discharged from the recording head 111 is guided downward by the comb teeth 112 of the ink guide 107 maintained at a constant distance, and is moved to the ink suction port 103 by the inclined portion 106 at the bottom of the recovery rod 102. Collected.
[0013]
The collected ink is sucked by a pump means (not shown) disposed at the tip of the tube 105 and collected through the joint 104 and the tube 105.
[0014]
[Problems to be solved by the invention]
However, as described above, when the cap 101 is adhered and fixed to the recovery rod 102, poor workability of adhesion, sealing failure due to peeling of the adhesion surfaces 108a and 108b, or ink leakage occurs. There are problems such as poor workability in which the joint 104 must be connected to both the ink suction port 103 and the tube 105, and ink leakage due to poor connection.
[0015]
The present invention has been made in view of the above-described problems, and the object of the present invention is the integration of a cap and a recovery rod, or the integration of a recovery rod, an ink suction port, and a joint. The cap, the recovery cup, the ink suction port, and the joint are molded as an integral recovery member, that is, a single part. It is an object of the present invention to provide a recording apparatus that is free from leakage and can greatly improve manufacturing efficiency.
[0016]
[Means for Solving the Problems]
For this reason, in the present invention, the object is achieved by providing a recording apparatus according to any one of the following items (1) to ( 2 ).
[0017]
(1) A recording apparatus that performs recording by discharging ink from a recording head, wherein a cap that seals the recording head, a recovery tub that accumulates ink discharged from the recording head, and ink collected in the recovery tub An ink suction port for suctioning, a tube for sucking ink from the ink suction port, a joint connecting the ink suction port and the tube, and the ink suction port through the joint and the tube. And a pump means for sucking ink, and the cap, the recovery rod, the ink suction port, and the joint are configured as an integral recovery member, and the recovery member has a longitudinal length inside the recovery member. A fixing member having an inclined portion for collecting the ink discharged from the recording head while being inclined along the direction to the ink suction port is disposed. And, the fixing member, the groove along the longitudinal direction of the recovery trough the inclined portion is formed, an ink guide for guiding the ink discharged from the recording head is disposed in the groove portion downward, a spring for pushing up the ink guide upward, a stopper for preventing the escape of the ink guide is pushed up by the spring together, the recording apparatus characterized by constituting the unit.
[0018]
(2) The recording apparatus according to (1) , wherein the inclined portion is inclined toward the ink suction port side of the recovery member .
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail based on examples.
[0025]
【Example】
The configuration of the present invention is shown in FIG. 1, FIG. 2 (a), and FIG. 2 (b).
[0026]
1 is a sectional view for explaining the structure of the present invention, FIG. 2 (a) is a sectional view taken along the line BB in FIG. 1, and FIG. 2 (b) is a sectional view taken along the line CC in FIG.
[0027]
A recording head 111 has a plurality of ink discharge portions (nozzles), and selectively heats the nozzle heaters attached to each of the recording heads based on the recording data, thereby discharging ink from the nozzles to the recording medium and performing a recording operation.
[0028]
Reference numeral 1 denotes a cap that serves to prevent the ink discharge portion from drying by sealing the recording head 111 when the recording operation is not performed (standby state).
[0029]
Reference numeral 2 denotes a recovery rod, which has a function of temporarily receiving ink used in the recovery operation for keeping the ink discharge portion (nozzle portion) of the recording head 111 in a healthy state during the recording operation. The recovery operation here is, for example, an operation in which ink is preliminarily ejected from all the nozzles into the recovery tub immediately before the start of the recording operation, or when the recording operation has not been performed for a relatively long time. Is an operation to pressurize the inside of the recording head 111 using a pump or the like not drawn, forcibly push out ink from all nozzles to the recovery rod 2 side, and return the ink fixing portion and the like to a healthy state.
[0030]
3 is an ink suction port, and 4 is a joint.
[0031]
The ink suction port 3 is connected to the tube 105 via the joint 4, and the ink temporarily accumulated in the recovery tank 2 by the recovery operation passes through the ink suction port 3 by a pump or the like not drawn here. Sucked.
[0032]
6 is an inclined portion for smoothly flowing ink used in the recovery operation in the direction of the ink suction port 3, 9 is a spring, 10a and 10b are stoppers, 13 is a fixing member, 14 is a recovery member, and 14a and 14b are protruding. , 15 is a frame, 16 is a groove, 105 is a tube, 107 is an ink guide, and 112 is a comb tooth.
[0033]
The cap 1, the recovery rod 2, the ink suction port 3, and the joint 4 constitute an integrated recovery member 14. The integral recovery member 14 is a molded part using the same material, such as an elastic body.
[0034]
A frame 15 is disposed outside the recovery member 14, and the recovery member 14 is fitted to the frame 15 with the protrusions 14 a and 14 b, and the longitudinal direction is configured such that both sides ride on the bottom surface of the frame 15. .
[0035]
Further, a fixing member 13 is disposed inside the recovery member 14, and the recovery member 14 is fixed to the frame 15 by pressing downward.
[0036]
The joint 4 of the recovery member 14 protrudes outward from the hole of the frame 15, and a tube 105 is connected to the tip.
[0037]
In the standby state or the recovery operation, the recording head 111 is brought into contact with the cap 1. Further, both ends of the ink guide 107 are brought into contact with the recording head 111, and the comb teeth 112 can maintain a certain distance (about 0.5 mm) from the recording head 111.
[0038]
Next, FIG. 3 shows a detailed sectional view around the fixing member, and FIG. 4 shows a plan view of the fixing member.
[0039]
The fixing member 13 constitutes a unit F together with the spring 9 and the ink guide 107.
[0040]
The ink guide 107 is pushed upward by the spring 9 and is configured not to come out by the stopper 10b of the fixing member 13 and the stopper 10a of another member.
[0041]
Further, the fixing member 13 includes a groove portion 16 in the longitudinal direction of the bottom portion, and walls on both sides of the groove portion 16 have inclined portions 6.
[0042]
Next, the operation will be described.
[0043]
In the standby state, the states of FIGS. 1, 2 (a), and 2 (b) are maintained, and the recording head 111 is kept sealed with the cap 1.
[0044]
In the recovery state, the ink discharged from the recording head 111 is guided downward by the comb teeth 112 of the ink guide 107 maintained at a constant distance, and the ink suction port is formed by the inclined portion 6 and the groove portion 16 of the fixing member 13. Collected in 3.
[0045]
The collected ink is sucked by a pump means (not shown) arranged at the tip of the tube 105 and collected through the joint 4 and the tube 105.
[0046]
By adopting such a configuration, ink leakage does not occur and manufacturing efficiency can be significantly increased.
[0047]
(Other embodiments)
An embodiment is also conceivable in which the cap 1 and the recovery rod 2 shown in FIG. 1 are configured as an integral recovery member, thereby omitting the bonding step between the cap 1 and the recovery rod 2 and improving the reliability.
[0048]
Alternatively, an embodiment is possible in which the recovery rod 2, the ink suction port 3, and the joint 4 shown in FIG. 1 are configured as an integral recovery member, thereby omitting the joint connection step and improving the reliability against ink leakage.
[0049]
【The invention's effect】
As described above, according to the present invention, the cap and the recovery rod, or the recovery rod and the ink suction port and the joint, and further the cap, the recovery rod, the ink suction port and the joint are configured as an integral recovery member. Thus, it is possible to provide an excellent recording apparatus such as an omission of a bonding step of a recovery rod and an omission of a joint connection step, and an improvement in production efficiency and an improvement in reliability against ink leakage.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a configuration of the present invention. FIG. 2 is a cross-sectional view of a line BB and CC. FIG. 3 is a detailed cross-sectional view of the periphery of a fixing member. ] Cross-sectional view of conventional configuration [FIG. 6] AA line cross-sectional view [Explanation of symbols]
1 Cap 2 Recovery bowl 3 Ink suction port 4 Joint 6 Inclined portion 9 Spring 10a, 10b Stopper 13 Fixing member 14 Recovery member 15 Frame 16 Groove 101 Cap 102 Recovery bowl 103 Ink suction port 104 Joint 105 Tube 106 Inclined portion 107 Ink guide 108a 108b Adhesive surface 109 Spring 110 Stopper 111 Recording head 112 Comb tooth F unit

Claims (2)

A recording apparatus that performs recording by discharging ink from a recording head,
A cap for sealing the recording head; a recovery cup for collecting ink discharged from the recording head; an ink suction port for sucking ink accumulated in the recovery bowl; and for sucking ink from the ink suction port Tube, a joint connecting the ink suction port and the tube, and a pump means for sucking ink from the ink suction port via the joint and the tube,
The cap, the recovery rod, the ink suction port and the joint are configured as an integral recovery member,
Inside the recovery member, there is disposed a fixing member having an inclined portion for collecting ink discharged from the recording head at an inclination along the longitudinal direction of the recovery rod to the ink suction port,
The fixing member has a groove portion formed along the longitudinal direction of the recovery rod in the inclined portion, and an ink guide disposed in the groove portion to guide the ink discharged from the recording head downward ,
A spring that pushes the ink guide upward;
Both a stopper for preventing the escape of the ink guide is pushed up by the spring, the recording apparatus characterized by constituting the unit. The recording apparatus according to claim 1, wherein the inclined portion is inclined toward the ink suction port side of the recovery member .

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