JPH0880618A - Ink jet recorder - Google Patents

Abstract

PURPOSE: To eliminate the time lag between the detection of an ink cartridge and the engagement of a latch member, minimize the length of a hollow needle for connecting the cartridge to prevent the needle from bending, and prevent the tear of a rubber closure and the damage of an ink reservoir part to prevent the leakage of ink. CONSTITUTION: A latch means for obtaining a touch of click at the time of loading a cartridge and a cartridge detection means for detecting the presence/ absence of an ink cartridge 7 are operated by the action of a common leaf spring resilient member 26 serving as a latching member and an electrode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet recording apparatus for recording by ejecting ink from a recording means onto a recording material.

[0002]

2. Description of the Related Art A recording device having functions such as a printer, a copying machine and a facsimile, or a recording device used as an output device of a multifunction machine or a workstation including a computer, a word processor, etc., is a sheet or a plastic thin plate based on image information. Images (including characters and symbols) on recording materials (recording media) such as (sheets for OHP)
Is configured to record. The recording device can be classified into an ink jet type, a wire dot type, a heat sensitive type, a thermal transfer type, a laser beam type and the like depending on the recording system of the recording means used.

In a serial type recording apparatus which employs a recording system in which a main scanning is performed in a direction intersecting a conveying direction (sub-scanning direction) of a recording material, the recording material is set at a predetermined recording position and then the recording material is set. An image (including characters, symbols, etc.) is recorded by a recording unit (recording head) mounted on a carriage that moves (main scanning) along, and after one line of recording is completed, a predetermined amount of paper is fed (sub-scan). An image is recorded in a desired range of the recording material by repeating the operation of performing (scanning) and then recording (main scanning) the image of the next row. On the other hand, in a line type recording apparatus that records a recording material only in the sub-scanning direction in which the recording material is fed in the transport direction, the recording material is set at a predetermined recording position, and one line of recording is continuously performed at one time. A predetermined amount of paper feed (pitch feed) is performed, and an image is recorded on the entire recording material.

Among them, the ink jet type (ink jet recording apparatus) is a means for performing recording by ejecting ink from an ink jet recording means (recording head) onto a recording material, and it is easy to make the recording means compact and high definition. Image can be recorded at high speed, it can be recorded on plain paper without requiring special processing, the running cost is low, and it is a non-impact system, so there is less noise and more It has the advantage that it is easy to use and record color images. Above all,
The line type recording apparatus using the line type recording means in which a large number of ejection openings are arranged in the paper width direction can further increase the recording speed.

In particular, an ink jet type recording means (recording head) for ejecting ink by utilizing heat energy,
Through the semiconductor manufacturing process such as etching, vapor deposition, and sputtering, the electrothermal converter formed on the substrate, the electrode,
By forming the liquid passage wall, the top plate, and the like, it is possible to easily manufacture a liquid discharge device having a high-density liquid passage arrangement (ejection port arrangement), and to further reduce the size. Further, by utilizing the advantages of IC technology and micro processing technology, it is easy to make the recording means long and planar (two-dimensional), and it is also easy to make the recording means full-multi and high-density mounting. is there. On the other hand, there are various requirements for the material of the recording material, and in recent years, in addition to the ordinary recording material such as paper and resin thin plate, thin paper and processed paper (paper with punch holes for filing and perforation). Paper, paper of any shape, etc.)
It has been required to use such as.

In the above ink jet recording apparatus, as an ink tank for storing ink to be supplied to the recording head,
A replaceable removable ink cartridge may be used. In that case, in order to make it easy to recognize that the ink cartridge has been securely mounted, it is common practice to use a latch means that gives a click feeling when the ink cartridge is mounted. Further, cartridge detecting means for electrically detecting whether or not the ink cartridge is mounted is also used.

Further, as an ink supply mechanism from the ink cartridge, for example, when the ink cartridge is mounted, a hollow needle on the main body side connected to the recording head pierces a rubber plug of the ink take-out portion of the ink cartridge, The ink of (3) is supplied through the hollow needle is used. As the cartridge detecting means, for example, a cartridge detecting resistance label attached to the upper side of the ink cartridge and an electrode attached to the main body side are used to detect the presence or absence of the ink cartridge by contact and separation of these. in use.

In this case, at the position where the resistance label comes into contact with the electrode, the hollow needle on the main body side pierces the rubber plug of the ink take-out portion of the ink cartridge and is sufficiently exposed in the ink inside. . Further, the latch means is provided at the portion where the ink cartridge is mounted, and at the position where a click feeling is obtained when the ink cartridge is mounted, the label for cartridge detection is at the “presence” detection position where it contacts the electrode. The interlocking relationship is established.

FIG. 7 is a schematic perspective view showing a configuration example of a cartridge detecting means and a latch means of a conventional ink jet recording apparatus, and FIG. 8 is a cartridge detecting means and a latch means when an ink cartridge is mounted in FIG. FIG. 3 is a schematic vertical sectional view showing the positional relationship of 7 and 8, an ink bag 102 is built in the ink cartridge 101, and the ink 103 to be supplied to the recording head is stored in the ink bag 102. A hollow needle 104 connected to the recording head is attached to the main body side. On the other hand, an ink take-out section 105 is provided on the front surface of the ink cartridge 101.

The ink take-out section 105 includes an ink take-out member 106 hermetically fixed to the ink bag 102.
A rubber stopper 108 for sealing the outer end of the outlet 107 of the ink outlet member 106, and the rubber stopper 1 having a central opening.
The cap 109 is fitted to the outer end of the ink cartridge 08, and the ink ejection opening 110 is formed in the front surface of the ink cartridge 101. Ink cartridge 1
01, the hollow needle 104 is attached to the rubber stopper 10.
By piercing and penetrating 8 the ink cartridge 101 is connected to the main body, and the ink in the ink bag 102 can be supplied to the recording head through the hollow needle 104.

Further, a cartridge detecting means for detecting whether or not the ink cartridge 101 is mounted is provided. The cartridge detecting means is composed of a pair of resistance labels 111 attached to the upper surface of the ink cartridge 101, and a pair of electrodes 112 attached to the main body side to detect the resistance between the resistance labels 111. There is. Each electrode 112 is connected to the detection function unit (control circuit or the like) of the main body. Further, a latch means is provided for making the user recognize that the ink cartridge 101 is mounted as a click feeling. The latch means is composed of a latch member 113 made of an elastic material with an engaging projection attached to the main body, and an opening or a step recess 114 formed on the bottom surface of the ink cartridge 101.

In FIG. 8, which shows the positional relationship when the ink cartridge 101 is mounted, the ink cartridge 1
The distance to detect that 01 is attached (the presence state) is L
When the ink cartridge 101 is abutted against the main body and then pulled back by the distance L or more, it is detected that there is no cartridge. The backlash of the latch means when the ink cartridge 101 is abutted against the main body is M, and the distance relationship is M ≧ L. Further, the length of the end opening (lateral hole opening) 115 of the hollow needle 104 that penetrates the rubber plug 108 and is exposed in the ink 103 is N. And the relationship between the three is L
≦ M <N. Therefore, the entire ink flow path of the ink supply system is in communication when the latch member 113 is always engaged with the ink cartridge 101 and the presence of the ink cartridge is detected. .

[0013]

However, in the above-mentioned conventional ink jet recording apparatus, since the cartridge detecting means and the latching means are provided separately, the resistance label 111 may be stuck at different positions. Occurrence of detection of the presence of a cartridge at a position where the ink cartridge 101 has not reached the mounting position, or detection of a cartridge that has been latched has occurred. Further, since the hollow needle 104 is pierced to a position where both dimensions are sufficiently satisfied, even if the hollow needle has some bend, the ink take-out member (rubber stopper) 108
Is scratched or causes ink leakage.

Further, since the hollow needle 104 is long, the rubber plug 10
There is also a disadvantage that a large bending moment acts when an oblique stab occurs in 8, and a force acts in a further bending direction. Also with respect to the rubber plug 108, the amount of movement of the puncture position of the hollow needle 104 at the position where the ink cartridge 101 is sufficiently pushed in from the puncture position of the tip of the bent needle becomes large, resulting in tearing of the rubber plug 108. However, there is an inconvenience of causing ink leakage.

The present invention has been made in view of the above-mentioned prior art, and an object of the present invention is to eliminate the operational gap between the cartridge detection means and the latch means in an ink jet recording apparatus using an ink cartridge. The length of the ink cartridge connection part such as the hollow needle can be minimized and the occurrence of bending can be prevented, the ink take-out part such as a rubber stopper is torn or the ink storage part such as an ink bag is damaged. To prevent
An object of the present invention is to provide an inkjet recording device capable of preventing ink leakage.

[0016]

According to a first aspect of the present invention, in an ink jet recording apparatus for recording by ejecting ink from a recording means to a recording material, a removable ink cartridge is used as an ink tank. The main body is provided with a latch means for giving a click feeling when mounting the ink cartridge, and a cartridge detecting means composed of an electrode and a resistance label for detecting the presence or absence of the ink cartridge, and the latch means and the cartridge detecting means have the same function. The above object is achieved by adopting a structure in which the members act.

According to the inventions of claims 2 and 3, in addition to the structure of claim 1, the acting member is an electrode made of a conductive leaf spring, and the resistance label is attached to the stepped recess. Alternatively, the acting member is configured to be provided on the main body side to more efficiently achieve the above object.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic perspective view showing a main configuration of an embodiment of an inkjet recording apparatus to which the present invention is applied. FIG.
In FIG. 1, reference numeral 1 is a recording head having a plurality of ejection ports for ejecting ink droplets according to recording information by an internal energy generating means (piezoelectric element, resistance heating element, etc.), and 2 is the recording head 1. A carriage 3 that reciprocates in the main scanning direction using a carriage motor (not shown) as a drive source, 3 is a guide shaft that slidably guides and supports the carriage 2, and 4 is a sheet-shaped recording material such as paper or a plastic thin plate. Reference numeral 5 denotes a conveyance roller that conveys (paper feeds) the recording material 4 according to a recording condition, and 6 denotes a conveyance motor that serves as a drive source for the conveyance roller 5 and the automatic paper feeding device.

The recording means (recording head) 1 is an ink jet recording head for ejecting ink by utilizing heat energy, and is provided with an electrothermal converter for generating heat energy. In addition, the recording head 1
Is for recording by causing film boiling in the ink by the thermal energy applied by the electrothermal converter and ejecting the ink from the ejection port by utilizing the pressure change due to the growth and contraction of bubbles generated at that time. Is.

FIG. 2 is a partial perspective view schematically showing the structure of the ink ejection portion of the recording head 1. In FIG. 2, the recording material 4 and a predetermined gap (for example, about 0.5 to
(About 2.0 mm) and the discharge port surface 81 facing each other,
A plurality of ejection openings 82 are formed at a predetermined pitch, and an electrothermal converter for generating energy for ejecting ink along the wall surface of each liquid passage 84 that connects the common liquid chamber 83 and each ejection opening 82 ( A heating resistor or the like) 85 is provided. The recording head 1 is mounted on the carriage 2 in such a positional relationship that the ejection ports 82 are arranged in a direction intersecting the main scanning direction (the reciprocating movement direction of the recording head 1). In this manner, the corresponding electrothermal converter 85 is driven (energized) based on the image signal or the ejection signal to cause the ink in the liquid passage 84 to film-boil, and the pressure generated at that time causes the ink to be ejected from the ejection port 82. The recording head 1 is configured.

In FIG. 1, 7 is an ink cartridge for supplying ink to the recording head 1, and 8 is a cartridge mounting portion provided in the main body of the recording apparatus so that the ink cartridge can be detachably mounted. The ink cartridge 7 is a replaceable disposable type. In FIG. 1, the ink cartridge 7
The state before the cartridge is mounted on the cartridge mounting portion 8 is shown.

At the time of recording, the recording head 1 is based on the recording information while being synchronized with the movement of the carriage 2 (main scanning).
The ink is ejected from the recording medium to record one line on the recording material 4, and when the recording for one line is completed, the conveyance motor 6 feeds the conveyance roller 5 by a predetermined pitch (sub scanning). Then, the recording head 1 is driven while moving the carriage 2 again to perform recording on the next line. By repeating the above operation, the entire recording material 4 is recorded.

In FIG. 1, in order to eliminate or prevent the clogging (ejection failure) of the ejection port 82 of the recording head 1 at a predetermined position (usually the home position of the carriage 2 or a position near the home position) outside the recording area. Recovery device 10
Is provided. The recovery device 10 includes a recording head 1
Recording using the movement of the cap 11 for covering the ejection port surface 81 of the ink, the suction pump 12 connected to the inside of the cap 11 for forcibly sucking (sucking) the ink from the ejection port 82, and the movement of the carriage 2. A wiping blade 13 for wiping off ink, dust and the like on the ejection port surface of the head 1,
The recovery system motor 14 is configured to drive the operation of each part of these recovery devices.

In FIG. 1, the ink cartridge 7 is shown.
Further, the cartridge mounting portion 8 is provided with a latch means for giving a click feeling when mounting the ink cartridge 7 and a cartridge detecting means for detecting the presence or absence of the ink cartridge 7. According to the present invention, the latch means and the cartridge detection means are configured to operate (operate) by the same acting member. And
The cartridge detecting means is composed of a pair of electrodes and a pair of resistance labels for detecting the presence or absence of the ink cartridge 7. Further, the common acting member is formed of a conductive leaf spring having a protrusion, and the resistance label is attached to a surface in a recess having an engaging step.

FIG. 3 shows the first part of the cartridge detecting means and the latch means of the ink jet recording apparatus to which the present invention is applied.
FIG. 4 is a schematic perspective view showing an embodiment, and FIG. 4 is a schematic vertical sectional view when the ink cartridge of FIG. 3 is mounted. 3 and 4, an ink bag 15 is built in the ink cartridge 7, and the ink 16 supplied to the recording head is stored in the ink bag 15. A hollow needle 17 connected to the recording head is attached to the main body side. A tip opening 29 is provided at the tip of the hollow needle 17 so that the ink can be supplied to the recording head 1 by being exposed to the ink 16 in the ink cartridge 7. On the other hand, on the front surface of the ink cartridge 7,
An ink take-out section 18 is provided.

The ink take-out portion 18 has an ink take-out member 19 hermetically fixed to the ink bag 15, a rubber stopper 21 for sealing the outer end of the take-out port 20 of the ink take-out member 19, and a central opening. The rubber plug 21 includes a cap 22 fitted to the outer end of the rubber plug 21 and an ink ejection opening 23 formed on the front surface of the ink cartridge 7. The ink cartridge 7 is attached to the cartridge mounting portion 8
When the ink cartridge 7 is attached to the hollow needle 17, the ink cartridge 7 is connected to the main body by the hollow needle 17 piercing the rubber stopper 21 and penetrating the rubber stopper 21.
Then, the ink can be supplied to the recording head 1 through the ink supply tube (not shown).

In FIGS. 3 and 4, the ink cartridge 7 and the main body (cartridge mounting portion 8) are provided with a cartridge detecting means for detecting whether or not the ink cartridge 7 is mounted in the cartridge mounting portion 8. Latch means is provided for making the user recognize that the ink cartridge 7 is mounted as a click sensation, and these cartridge detecting means and latch means are configured to act by the same acting member.

A recessed stepped recess 24 is formed on the back surface (bottom surface) of the ink cartridge 7, and a pair of resistance labels 25 are attached to the surface in the recessed stepped recess. The stepped concave portion 24 constitutes the latch means for giving a click feeling when the cartridge is mounted, and the resistance label 25 constitutes the cartridge detecting means for detecting the presence or absence of the ink cartridge 7.
A pair of electrodes 26 made of a conductive leaf spring is attached to the main body (cartridge mounting portion 8).

The pair of electrodes 26 are electrodes that constitute the cartridge detecting means, and also serve as a latch member of the rack means. A protrusion 27 is formed on each electrode 26, and the tip end thereof has a bent escape shape so as not to collide with the cartridge when the cartridge is inserted. Each of the protrusions 27 is bent and formed so as to engage with the step recess 24 with a click feeling and to be pressed by the resistance label 25 attached in the step recess 24 with a sufficient spring force. . Thus, the pair of electrodes 26 formed of the leaf springs are used as a common acting member for actuating the latch means and the cartridge detecting means.

The hollow needle 17 is connected to the recording head 1 via an ink supply tube or the like. Further, each of the electrodes 26 is electrically connected to a detection function unit (control circuit or the like) of the main body. The pair of resistance labels 25 are connected by a conductor 28, and the pair of electrodes 26 are arranged so as to be in contact with each of these resistance labels. As is apparent from FIG. 4, when the ink cartridge 7 is mounted, the projections 27 of the pair of electrodes 26 made of leaf springs also serving as the latch members are fitted into the stepped recesses 24, and a click feeling is obtained. Step recess 24
The presence of the cartridge is detected by electrical conduction by pressing the pair of resistance labels 25 attached to the inner surface with a spring force. That is, the click feeling when the ink cartridge is mounted and the cartridge detection are performed at the same time, and at that time, the tip end opening 29 of the hollow needle 17 for ink supply is sufficiently exposed in the ink 16.

In the embodiment described above, the detachable ink cartridge 7 is used as an ink tank, and the latch which gives a click feeling when the ink cartridge 7 is mounted on the ink cartridge 7 and the main body (cartridge mounting portion 8). A cartridge detecting means including means 26 and 24, an electrode 26 for detecting the presence or absence of the ink cartridge 7, and a resistance label 25 is provided, and the latch means and the cartridge detecting means are a common acting member including an elastic member (leaf spring). It is configured to operate at 26.

Therefore, according to this embodiment, in the ink jet recording apparatus using the detachable ink cartridge 7, the ink cartridge connecting portion composed of the hollow needle 17 is eliminated by eliminating the operational deviation between the cartridge detecting means and the latch means. The length of the ink can be minimized and the occurrence of bending can be prevented, the ink take-out portion 18 including the rubber plug 21 can be torn, and the ink bag 1
There is provided an ink jet recording apparatus capable of preventing the ink storage portion composed of 5 from being damaged and preventing ink leakage.

FIG. 5 shows the second part of the cartridge detecting means and the latch means of the ink jet recording apparatus to which the present invention is applied.
FIG. 6 is a schematic perspective view showing an embodiment, and FIG. 6 is a schematic vertical sectional view when the ink cartridge of FIG. 5 is mounted. In this embodiment, a stop lever 30 is added to the above-mentioned first embodiment. In FIGS. 5 and 6, a stop lever 30 that is rotatable around a horizontal support shaft 31 provided near the electrode 26 of the main body (cartridge mounting portion 8) is provided. The stop lever 30 is biased in the direction of arrow A by spring means (not shown).

The stop lever 30 includes a pair of electrodes 26.
Has an arm portion 32 extending to the upper side of the distal end portion thereof, and a wedge 33 is formed on the upper surface of the arm portion 32. On the other hand, at a position (adjacent position) near the stepped recess 24 on the back surface (bottom surface) of the ink cartridge 7, there is a wedge engaging recess 34 into which the wedge 33 of the stop lever 30 can enter and engage. Has been formed. With the ink cartridge 7 attached, as shown in FIG.
Is spring-biased upward (in the direction of arrow A), so that the wedge 33 enters the wedge engaging concave portion 34 and engages with the wedge engaging concave portion 34 to prevent the removal operation of the ink cartridge 7. In this state, the projections 27 of the pair of leaf spring electrodes 26 are in pressure contact with the pair of resistance labels 25 in the step recess 24 by the spring force of the electrode members.

In FIG. 6, this ink cartridge 7
The operation of removing is performed by the user pushing down the tip operating portion 35 of the stop lever 30. That is, the tip operating portion 35 is pushed downward to push the stop lever 30.
Is rotated in the same direction, the wedge 33 of the arm portion 32 is disengaged from the wedge engaging recess 34 of the ink cartridge 7. Therefore, the ink cartridge 7 can be removed from the cartridge mounting portion 8 and can be removed by retreating while pushing down the electrode 26.

On the other hand, when the ink cartridge 7 is mounted, the ink cartridge 7 rides on the slope of the wedge 33 of the stop lever 30 to push down the stop lever 30, and further through the stop lever 30 (the arm 32 thereof). The ink cartridge 7 is inserted while pushing down the electrode 26 with the electrode 26, and
By entering the inside, the mounting of the ink cartridge 7 in the cartridge mounting portion 8 is completed. The fact that the electrode 26 press-engages in the stepped concave portion 24 is to detect mounting of the ink cartridge 7 (there is a cartridge), and in this state, the hollow needle 17 completely penetrates the rubber plug 21 and its tip portion. The opening 29 is fully exposed in the ink 16.

The second embodiment shown in FIGS. 5 and 6 is different from the first embodiment shown in FIGS. 3 and 4 in the points described above, but is substantially the same in other points. Therefore, corresponding parts are indicated by the same reference numerals, and detailed description thereof will be omitted. Therefore, according to the present embodiment as well, in the ink jet recording apparatus using the detachable ink cartridge 7, the length of the ink cartridge connecting portion including the hollow needle 17 can be reduced by eliminating the operational deviation between the cartridge detecting means and the latch means. It can be suppressed to a necessary minimum and can prevent the occurrence of bending, tearing the ink take-out portion 18 formed of the rubber plug 21 and the ink bag 1
There is provided an ink jet recording apparatus capable of preventing the ink storage portion composed of 5 from being damaged and preventing ink leakage.

According to the embodiment described above, the electrode 26 for detecting the presence / absence of the ink cartridge 7 and the spring-like latch member for engaging the ink cartridge 7 at the mounting position with a click feeling are the same part. Since it is configured as described above, it is possible to roughly think about the positional relationship between the two, the management content is reduced, and the cost can be reduced by reducing the number of parts.

Furthermore, since the resistance label 25 is attached to the back surface (lower surface) of the ink cartridge 7, it is possible to eliminate the possibility of electrode discontinuity due to dirt or dust accumulation. Further, since the electrode 26 slides on the ink cartridge 7,
Before the electrode 26 contacts the resistance label 25, the contact surface of the electrode 26 can always be a new clean surface,
A reliable electrical contact can be obtained. Further, since the stepped concave portion 24 for the latch means is provided and the resistance label 25 is attached to the inside thereof, it is possible to prevent the resistance label 25 from being damaged.

Further, since the contact position of the latch member and the contact position of the electrode are the same, the hollow needle 17 exposed in the ink 17
The dimensional tolerance with respect to the tip end opening 29 can be further shortened, and an unnecessary length is not required for the dimension of the hollow needle 17. Therefore, the hollow needle 1 exposed in the ink
By reducing the needle length of 7, it is possible to prevent ink leakage from the connection portion and damage to the ink extraction portion due to bending of the hollow needle 17 or the like.

In the above embodiments, the case of the serial recording method in which the recording means (recording head) is moved in the main scanning direction has been described as an example, but the present invention is the entire width or a part of the recording material. The same can be applied to the case of the line recording method in which the line recording unit having a length covering the above is used to perform recording only in the sub-scan, and the same effect can be achieved. In addition to the inkjet recording apparatus that performs single-color recording, the present invention also provides a color inkjet recording apparatus that has one or a plurality of recording heads and records with inks of different colors, and gradations that use inks of the same color but different densities. The same can be applied to an inkjet recording apparatus, and further to an inkjet recording apparatus in which these are combined, and similar effects can be achieved.

Further, according to the present invention, the recording means has various forms such as when the recording means is a replaceable ink jet cartridge in which the recording head portion and the ink storage portion are integrated, or when the recording means is a permanent type. The same can be applied to the case of taking, and the same action and effect can be achieved.

The present invention can be applied to an ink jet recording apparatus using a recording means (recording head) using an electromechanical transducer such as a piezo element, but among them, thermal energy is used. Then, an excellent effect is brought about in an ink jet recording apparatus which uses a recording means of a method of ejecting ink. This is because such a system can achieve high density recording and high definition recording.

[0044]

As is apparent from the above description, according to the invention of claim 1, in an ink jet recording apparatus for recording by ejecting ink from a recording means to a recording material, a detachable ink cartridge as an ink tank. The ink cartridge and the main body are provided with a latch means for giving a click feeling when the ink cartridge is mounted, and a cartridge detecting means including an electrode and a resistance label for detecting the presence or absence of the ink cartridge. Since the cartridge detecting means operates by the same acting member, the number of parts can be reduced to reduce the cost, and the operation of the cartridge detecting means and the latch means when the ink cartridge is removably mounted can be improved. Misalignment can be eliminated and ink cartridges such as hollow needles can be connected The length can be minimized and the occurrence of bending can be prevented, preventing tearing of the ink take-out part such as a rubber plug and scratching the ink storage part such as an ink bag, preventing ink leakage. There is provided an inkjet recording device that can do the above.

According to the inventions of claims 2 and 3,
In addition to the structure of claim 1, the acting member is an electrode made of a conductive leaf spring, and the resistance label is attached to the stepped recess, or the acting member is provided on the main body side. Therefore, in a more efficient manner, it is possible to reduce the number of parts and reduce the cost, and it is possible to eliminate the operational gap between the cartridge detection means and the latch means when the ink cartridge is removably mounted, The length of the ink cartridge connection part such as the hollow needle can be minimized and the occurrence of bending can be prevented, tearing the ink take-out part such as a rubber stopper and scratching the ink storage part such as the ink bag. There is provided an inkjet recording apparatus capable of preventing the ink leakage and preventing the ink leakage.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a schematic configuration of an embodiment of an inkjet recording apparatus to which the present invention is applied.

FIG. 2 is a partial perspective view schematically showing the structure of an ink ejection portion of the recording means in FIG.

FIG. 3 is a schematic perspective view showing a first embodiment of a cartridge detecting means and a latch means of an ink cartridge mounting portion of an ink jet recording apparatus to which the present invention is applied.

FIG. 4 is a schematic vertical sectional view showing a state when the ink cartridge of FIG. 3 is mounted.

FIG. 5 is a schematic perspective view showing a second embodiment of the cartridge detecting means and the latch means of the ink cartridge mounting portion of the ink jet recording apparatus to which the present invention is applied.

6 is a schematic vertical sectional view showing a state when the ink cartridge of FIG. 5 is mounted.

FIG. 7 is a schematic perspective view showing a structural example of a cartridge detecting unit and a latch unit of an ink cartridge mounting portion of a conventional inkjet recording apparatus.

8 is a schematic vertical sectional view showing a state when the ink cartridge of FIG. 7 is mounted.

[Explanation of symbols]

 1 Recording Means (Recording Head) 2 Carriage 3 Guide Shaft 4 Recording Material 5 Conveying Roller 6 Conveying Motor 7 Ink Cartridge 8 Cartridge Mounting Section 10 Recovery Device 11 Cap 12 Suction Pump 13 Wiping Blade 14 Recovery System Motor 15 Ink Bag 16 Ink 17 Hollow Needle 18 Ink Extraction Portion 21 Rubber Plug 23 Opening 24 Step Depression 25 Resistance Label 26 Electrode 27 Projection 29 Tip Opening 30 Stop Lever 33 Wedge 34 Wedge Engaging Recess 81 Discharge Port Surface 82 Discharge Port 83 Common Liquid Chamber 84 Liquid Road 85 electrothermal converter

Claims (5)

[Claims] 1. In an inkjet recording apparatus for recording by ejecting ink from a recording means to a recording material, a detachable ink cartridge is used as an ink tank, and the ink cartridge is mounted on the ink cartridge and a main body. Inkjet, characterized in that there is provided a latching means which sometimes gives a click feeling, a cartridge detecting means composed of an electrode and a resistance label for detecting the presence or absence of the ink cartridge, and the latching means and the cartridge detecting means act by the same acting member. Recording device. 2. The ink jet recording apparatus according to claim 1, wherein the acting member is an electrode made of a conductive leaf spring, and the resistance label is attached to the stepped recess. 3. The ink jet recording apparatus according to claim 1, wherein the acting member is provided on a main body side. 4. The ink jet recording apparatus according to claim 1, wherein the recording means is an ink jet recording means including an electrothermal converter that generates thermal energy used for ejecting ink. 5. The ink jet recording apparatus according to claim 4, wherein the recording unit ejects the ink from the ejection port by utilizing film boiling generated in the ink by the thermal energy generated by the electrothermal converter.