JP3376238B2 - Storage container for inkjet recording head - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates is a <br/> shall relates to a storage container of the ink jet recording head for recording by discharging ink.

[0002]

2. Description of the Related Art Conventionally, as a container for accommodating and storing a recording head for an ink jet recording apparatus, there has been the following one.

As a first conventional example, FIG.
(D) is an explanatory view of what is disclosed in JP-A-3-248849, in which the ink jet cartridge 1 is shown.
Discharge port surface 106 of discharge port 109 and atmosphere communication hole 1
13 is closed by the seal member 103 and held by the pressing member 104, and is put between the container body 61 and the lid member 63, and both are hermetically sealed by heat sealing or the like.

A second conventional example, FIG.
FIG. 8 is an explanatory view of the one disclosed in Japanese Patent No. 89085, in which ink is filled in an ink flow path in an ink jet recording head 121, a rubber plug 122 is attached to an ink supply port and sealed, and an ink discharge port is sealed 123 Storage box 12 for attaching and fixing the inkjet recording head 121
4 and an aluminum bag 125 that holds the storage box 124 in a sealed state
It is composed of and.

[0005]

However, according to the conventional method as described above, when the storage container is exposed to a bad environment of high temperature and low humidity, for example, a temperature of 70 ° C. and a humidity of 0% for a long time. In addition, due to a slight gap in the incomplete seal due to variations in mass production, etc., a perfect seal cannot be achieved, or due to the slight pinholes in the seal material itself, a perfect seal is achieved. In the case where the ink is not formed, the humidity in the storage container decreases, the ink filled in the inkjet recording head gradually evaporates, the ink near the ink ejection port solidifies, and the ink does not eject or solidifies. There is a possibility that the ink will remain near the ink ejection port and the ejected ink droplet will not land at a correct position.

The present invention has been made in order to solve the above-mentioned conventional problems, and the storage capacity of an ink jet recording head does not deteriorate while the ink jet recording head is stored in a storage container. The purpose is to provide a vessel .

[0007]

[SUMMARY OF To this end, the present invention provides serial
Printed circuit board with electrode terminals for receiving recording signals, and
Ink ejection that ejects ink to the recording medium based on the signal
Inkjet recording head equipped with an outlet for distribution
Storage containers smell of the ink jet recording head to save
Te, calibration covering the ink discharge ports and said printed circuit board
And-up, the ink-jet Symbol, which was covered with the cap
A storage bag for hermetically storing the recording head and the above-mentioned cap.
Moisture distributed on the back side relative to the side that covers the printed circuit board
An ink-jet recording head, comprising: It is intended to achieve the above-mentioned object by providing a container.

[0008]

According to the storage container having the constitution of the present invention as described above,
In the inkjet recording head, for example, in the head protection member or due to the moisture contained in the moisture absorber provided in the storage container, it is possible to prevent the humidity in the storage container from decreasing even in an environment of high temperature and low humidity. The ink filled in the inkjet recording head gradually evaporates, the ink near the ink ejection port solidifies and the ink does not eject, or the solidified ink remains near the ink ejection port and the ejected ink droplets are normal. It is possible to avoid problems such as not landing at the position.

[0009]

Embodiments of the present invention in the following DETAILED DESCRIPTION OF THE INVENTION be described based-out the details in <br/> embodiment that is backed up by a plurality of reference examples and the reference examples.

Reference Example 1 FIGS. 1, 2, 3 and 4 show a first reference example of a storage container for an ink jet recording head according to the present invention. FIG. 1 is a perspective view of an ink jet recording head of Reference Example 1, FIG.
(A), (b) is the FF sectional drawing. Also, FIG.
FIGS. 4A to 4C and FIGS. 4D and 4E are schematic diagrams for explaining the procedure of housing the inkjet recording head unit in a sealed state.

In each drawing, 10 is a recording head body, and 12 is
A filter that is connected to an ink tank and is supplied with ink, 1
3 is a seal rubber, 14 is a heater board for ejecting ink droplets, 15 is a printed circuit board, 16 is a printed circuit board 1.
5, a TAB tape for transmitting the recording electric signal received from the printer body to the heater board 14, 17 is an ink flow path, 2
Reference numeral 0 is a protective cap, and reference numerals 30 and 31 are moisture absorbers.

In this reference example, the moisture absorbers 30 and 31 are
We use polyurethane foam sponges that are cut into small pieces. It doesn't matter.

Here, each storage space is provided in the ink jet recording head, the moisture absorbers 30 and 31 are inserted therein, and a certain amount of distilled water or clear ink is injected by a syringe 140 or the like (here, the clear ink is , Refers to colorless and transparent ink that has the same components as the ink but without dyes and pigments. The fixed amount of water soaked in here is 0.
About 3 g to 0.5 g is good, and if it is less than this, the humidity in the storage container cannot be maintained, and if it is more than this, moisture overflows from the moisture absorber and the storage container may be contaminated. is doing.

In FIGS. 3 and 4, the processed head is shown in FIG.
(A) Combined with the tank holder 40, (b) integrated into the head unit 50, (c) after the protective cap 20 is attached, and then housed in the aluminum pillow bag 60 of FIG. 4 (d), (e) It is heat-sealed and sealed.

Reference Example 2 FIGS. 5 and 6 (a) to (e) show respective explanatory views of the second reference example . 5A and 5B are perspective views showing a state in which the head (protection) cap 20 is mounted on the inkjet recording head 10 and is hermetically housed in a housing container.

FIG. 5 (a) is provided with a groove 21 and a groove 22 for inserting the moisture absorbers 33, 34 in the head cap 20, and (b) inserting the moisture absorbers 33, 34 in the groove 21 and a dispenser. Water is impregnated with a syringe 150 or the like, and (c) the treated head cap 20 is attached to the head unit.

FIG. 6 (d) is stored in an aluminum pillow bag 60. (e) Heat sealed and sealed.

[0018] (Embodiment) FIG. 7, 8 (a) ~ (e), shows a respective diagram of the implementation example.
7A and 7B show an inkjet recording head 10.
It is a perspective view which shows the procedure of attaching the protective cap 20 to FIG. In this embodiment, unlike the reference example 2, FIGS. 7 (a)
A moisture absorber 36 is attached to the back surface of the head cap 20 with a double-sided adhesive tape 35, and (b) water is impregnated with a syringe 150 or the like, (c) the treated head cap 20 is used as the head unit 5
Attach it to 0.

FIG. 8 (d) is stored in an aluminum pillow bag 60. (e) Heat sealed and sealed.

Reference Example 3 FIGS. 9 and 10 (a) to (d) show explanatory views of the third reference example . 9A and 9B are vertical sectional views showing an aluminum bag 62 for accommodating the head unit 50 including the ink jet recording head 10, the tank holder 40 and the protective cap 20. 10 (c) and 10 (d) are perspective views for explaining how the head is stored.

In the sectional view of FIG. 9A, a room 61 in which the water absorber 36 is inserted separately from the room in which the head is housed.
Is provided, and the moisture absorber 36 is inserted therein to allow the moisture to permeate.

10C, the head unit 50 is housed in the aluminum pillow bag 62, and the opening is heat-sealed in FIG.

Reference Example 4 FIGS. 11A to 11F are explanatory views of the fourth reference example . This reference example is an improvement of the configuration of the above-mentioned conventional example 1, in which moisture absorbers 37a, 37b, 37c, 37d are attached to the inside surface of the box of the storage container with a double-sided adhesive tape in FIG. Is. After impregnating the moisture into these moisture absorbers, as in the case of the conventional example 1, the ejection port 9 and the atmosphere communication hole 1 of the ejection port surface 26 of the ink jet cartridge.
13 is closed by the seal member 103 and held by the pressing member 104, and the container body 161 and the lid member 163 are held.
Then, the both are hermetically packaged by heat sealing or the like.

Reference Example 5 FIG. 12 shows explanatory views of the fifth reference example. Reference Example 5
Is an improvement of the configuration of the conventional example 2 (FIG. 14). Further, in FIG. 12, the inkjet recording head 121
Ink is filled in the inner ink flow path, and a rubber stopper 122 is attached to the ink ejection port to seal the ink supply port and a seal 123
And a storage box 124 for accommodating and fixing the ink jet recording head 121, and an aluminum bag 125 for sealingly storing the storage box 124. Here, the storage box 124 is made of mildew-proof cardboard, and a dispenser, a syringe 150, or the like is used to store moisture of 0.3 g to
Sealed aluminum bag 12 by including 0.5g
The humidity in 5 is maintained.

[0025]

As described above, according to the present invention,
In the inkjet recording head, in the head protection member,
Due to the moisture contained in the moisture absorber provided in the storage container,
Even under an environment of high temperature and low humidity, the humidity in the storage container is prevented from lowering, the ink filled in the ink jet recording head is gradually evaporated, the ink near the ink ejection port is solidified, and the ink is ejected. It is possible to avoid the occurrence of problems such as disappearance or solidified ink remaining in the vicinity of the ink ejection port, and the ejected ink droplets no longer landing at normal positions.

[Brief description of drawings]

FIG. 1 is a perspective view of an inkjet recording head of Reference Example 1.

2A and 2B are cross-sectional views of the inkjet recording head of Reference Example 1. FIG.

FIG. 3 (a) to (c) Explanatory drawing of a sealed state storage procedure of Reference Example 1 (No. 1)

4 (d) and (e) are views for explaining a sealed state storage procedure of reference example 1 (part 2).

5A to 5C are explanatory views of reference example 2 (part 1).

6 (d) and 6 (e) are explanatory views of reference example 2 (part 2).

7A to 7C are explanatory views (1) of the examples .

8 (d) and 8 (e) are explanatory views of the embodiment (No. 2)

9 (a) and 9 (b) are explanatory views (1) of Reference Example 3 ;

10 (c) and (d) Explanatory diagrams of reference example 3 (No. 2)

11A to 11F are explanatory views of reference example 4 ;

12 is an explanatory diagram of Reference Example 5. FIG.

13A to 13D are explanatory diagrams of a package of Conventional Example 1;

FIG. 14 is an explanatory diagram of storage of a recording head of Conventional Example 2.

[Explanation of symbols]

10 Recording head body 12 filters 13 Seal rubber 14 heater board 15 Printed circuit board 16 TAB tape 17 ink flow path 20 protective cap 30,31 Water absorber 33,34 Moisture absorber 35 Double-sided adhesive tape 36 Water absorber 40 tank holder 50 head units 60 aluminum pillow bag 62 Aluminum pillow bag 100 inkjet cartridges 103 seal member 104 Holding member 106 Discharge port surface 109 outlet 113 atmosphere communication hole 120 inkjet recording head 121 inkjet recording head 122 Rubber stopper 123 seal 124 Storage box 125 aluminum bag 161 container body 163 lid member

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-5-514 (JP, A) JP-A-6-344546 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B41J 2/175

Claims (3)

(57) [Claims] 1. A pre-printer having an electrode terminal for receiving a recording signal.
Ink on the recording substrate and the recording medium based on the received signal.
Inkjet recording with an ink ejection port for ejecting
A cap for covering the ink discharge port and the printed circuit board in a storage container of an inkjet recording head for storing the head during distribution
And the inkjet recording head covered with the cap
And a backing for the side of the cap that covers the printed circuit board.
A moisture absorber arranged on the surface side, and the cap in a state in which the moisture absorber contains moisture is
Front with the ink jet recording head attached
A storage container for an ink jet recording head, which is hermetically stored in a storage bag . 2. The storage container for an ink jet recording head according to claim 1 , wherein the water contained in the water absorbent is pure water , distilled water, or colorless transparent ink . 3. The moisture absorber is a sponge made of foamed polyurethane, a polypropylene fiber lump, or an antifungal treatment.
The storage container for an ink jet recording head according to claim 1 , wherein the storage container is a paper that has been subjected to .