JP2007062247A - Recording liquid cartridge and image forming device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording liquid cartridge capable of responding to the change of an administering quantity into a recording liquid accommodating bag while enhancing a durability to an impact and a vibration due to falling and an image forming device with the recording liquid cartridge. <P>SOLUTION: The ink cartridge 10 is equipped with an ink bag 111 filled with an ink and a case 112 constituted of a first case 112A and a second case 112B as an outer case detachably accommodating the ink bag 111 within the same, projecting walls 113A, 113B dividing the accommodated ink bag 111 into two accommodating parts 111a, 111b is arranged in the inner wall faces of the first, second cases 112A, 112B. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a recording liquid cartridge and an image forming apparatus, and more particularly to an image forming apparatus provided with a recording head that discharges a recording liquid and a recording liquid cartridge that stores and holds the recording liquid.

  An ink jet recording apparatus known as an image forming apparatus such as a printer, a facsimile machine, a copying apparatus, a plotter, etc., includes a recording medium from a recording head (hereinafter referred to as paper, but the material is not limited to paper, and includes OHP, In addition, recording media, recording paper, and the like are also recorded on the recording medium by ejecting ink that is a recording liquid, and in particular, color images are recorded using multicolor inks. Easy to do.

  In such an ink jet recording apparatus, as a recording liquid supply system for a recording head for ejecting liquid droplets, a system in which an ink cartridge for directly supplying ink to a carriage on which the recording head is mounted is detachably mounted, a recording head The sub-tank for supplying ink to the recording head is mounted on the carriage mounted with the ink cartridge and the sub-tank, which is a main recording liquid cartridge that is replaceably loaded on the apparatus main body side, and includes a flexible tube (including a pipe). ) And the like, and there is a system that supplies (supplements) ink from the ink cartridge when the ink capacity of the sub tank decreases.

The ink cartridge used in the latter sub-tank type ink jet recording apparatus includes a holding member having an ink supply port portion and a sealed ink filling port portion as described in Patent Document 1. An ink bag which is an ink storage means, a first housing having a holding means for holding the ink bag holding member, a second housing having a similar external shape to the first housing, and a first housing A first housing and a third housing that is fitted to the front surface of the ink supply side of the second housing in a state in which the housing and the second housing are combined, and the first, second, and third housings are disassembled. Ink cartridges that are configured to be assembled are also known.
Japanese Patent Laid-Open No. 2004-195962 JP 2005-014437 A

  By the way, in an ink cartridge that holds ink in the ink bag, it is necessary to prevent the ink bag from being damaged due to an impact caused by dropping or vibration during transportation.

Thus, as described in Japanese Patent Application Laid-Open No. H10-260260, there is a conventional one in which one surface of an ink bag is bonded to a case and the other is supported by a rib corresponding to the outer shape of the ink bag.
Japanese Patent Publication No. 8-230204

In addition, as described in Patent Documents 4 to 6, an exterior (housing) that accommodates an ink bag has a shape that follows the outer shape of the ink bag so that the ink bag is held on the entire surface. is there.
Japanese Examined Patent Publication No. 6-65492 JP 2001-105619 A JP 2002-3316841 A

  By the way, as a request for the ink cartridge, a cartridge having a different ink capacity, for example, an ink cartridge of L size, M size, S size or the like may be required. This is because when the frequency of printing is high, the larger the capacity, the fewer the number of cartridge exchanges can be reduced, and the labor can be reduced. Even when the ink expiry date comes, a large amount of ink remains and resources are wasted.

  In order to cope with ink cartridges having different ink capacities as described above, it is conceivable to increase or decrease the amount of ink filled in the ink bag. However, of course, the outer shape of the ink bag changes depending on whether the ink bag has a large amount of filling or not.

  For this reason, the conventional ink cartridge described above requires a case having ribs and surfaces shaped to match the ink filling amount in the ink bag. For example, even if the outer shape is the same, a case in which the ribs of the case are arranged for, for example, L size, M size, and S size is required.

  However, arranging the cases according to the ink capacity to be accommodated in this way increases the types of parts to be handled, generates labor for production management, and increases costs. Also, from the viewpoint of parts recycling, using common parts as much as possible reduces the need for classification for each part and facilitates reuse, but there is a problem that it is difficult to cope with such recycling.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a recording liquid cartridge capable of dealing with different recording capacities in a recording liquid storage bag while improving resistance to impact and vibration due to dropping, and the recording liquid cartridge An object of the present invention is to provide an image forming apparatus including a recording liquid cartridge.

  In order to solve the above problems, the recording liquid cartridge according to the present invention has a configuration in which a protruding wall that substantially divides the recording liquid containing bag into a plurality of portions is provided in the case.

  Here, it is preferable that the recording liquid containing bag is substantially divided into three or more parts. Further, it is preferable that the protruding wall is detachable from the case.

  The image forming apparatus according to the present invention comprises the recording liquid cartridge according to the present invention in a replaceable manner.

  According to the recording liquid cartridge of the present invention, since the case is provided with the protruding wall that substantially divides the recording liquid containing bag into a plurality of portions, the influence of impact and vibration at the time of dropping is divided into each part. Since it is dispersed in units, the recording liquid storage bag is not easily damaged, and it is not necessary to change the case side according to the recording liquid capacity, so that the types of parts can be reduced.

  According to the image forming apparatus according to the present invention, since the recording liquid cartridge according to the present invention is provided, it is possible to prevent liquid leakage in the apparatus main body and to reduce the cost of the entire apparatus.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective explanatory view of an ink jet recording apparatus as an image forming apparatus according to the present invention as viewed from the front side, and FIG. 2 is a perspective explanatory view of a state where a front cover of a cartridge loading portion of the recording apparatus is opened.

  The ink jet recording apparatus includes an apparatus main body 1, a paper feed tray 2 for loading paper loaded in the apparatus main body 1, and a sheet on which an image is recorded (formed) by being detachably mounted on the apparatus main body 1. A paper discharge tray 3 for stocking is provided. Further, a cartridge loading for loading an ink cartridge that protrudes from the front surface to the front side of the apparatus main body 1 and is lower than the upper surface is provided at one end side of the front surface of the apparatus main body 1 (side of the paper supply / discharge tray section). The cartridge loading unit 4 has an operation / display unit 5 provided with operation buttons and a display.

  The cartridge loading unit 4 includes a plurality of recording liquids (inks) of different colors, such as black (K) ink, cyan (C) ink, magenta (M) ink, and yellow (Y) ink, respectively. Ink cartridges 10k, 10c, 10m, and 10y, which are such recording liquid cartridges (referred to as “ink cartridge 10” when colors are not distinguished), can be inserted and loaded from the front side of the apparatus main body 1 toward the rear side. A front cover (cartridge cover) 6 that is opened when the ink cartridge 10 is attached or detached is provided on the front side of the cartridge loading unit 4 so as to be openable and closable. Further, the ink cartridges 10k, 10c, 10m, and 10y are configured to be loaded side by side in a vertical state.

  Further, the operation / display unit 5 has the remaining amounts of the ink cartridges 10k, 10c, 10m, and 10y of each color at the arrangement positions corresponding to the mounting positions (arrangement positions) of the ink cartridges 10k, 10c, 10m, and 10y of the respective colors. The remaining amount display portions 11k, 11c, 11m, and 11y for each color for displaying the near end and the end are arranged. Further, the operation / display unit 5 is also provided with a power button 12, a paper feed / print resume button 13, and a cancel button 14.

  Further, the front cover 6 of the cartridge loading unit 4 as a whole visually recognizes the plurality of ink cartridges 10k, 10c, 10m, and 10y loaded in the cartridge loading unit 4 with the front cover 6 closed. It can be made of a transparent or translucent member. In addition, if the ink cartridges 10k, 10c, 10m, and 10y can be visually recognized from the outside, a part of the ink cartridges 10k, 10c, 10m, and 10y may be formed of a transparent or translucent member.

  Further, a protrusion (sensor piece) detected by a detection sensor (not shown) which is an open / close detection means (not shown) provided inside the cartridge loading unit 4 in order to detect the opening / closing of the front cover 6 at the upper end of the front cover 6. 16 is provided.

  Next, the mechanism part of the ink jet recording apparatus will be described with reference to FIGS. FIG. 3 is a schematic side view for explaining the overall structure of the mechanism section, and FIG. 4 is a plan view for explaining essential parts of the mechanism section.

  A carriage 33 is slidably held in the main scanning direction by a guide rod 31 which is a guide member horizontally mounted on the left and right side plates 21A and 21B constituting the frame 21, and a stay 32, and a timing belt is held by a main scanning motor (not shown). 4 is moved and scanned in the direction indicated by the arrow (carriage main scanning direction) in FIG.

  As described above, the carriage 33 includes a recording head 34 including four droplet discharge heads that discharge ink droplets of yellow (Y), cyan (C), magenta (M), and black (Bk). A plurality of ink ejection openings are arranged in a direction crossing the main scanning direction, and are mounted with the ink droplet ejection direction facing downward.

  As an inkjet head constituting the recording head 34, a piezoelectric actuator such as a piezoelectric element, a thermal actuator that uses a phase change caused by film boiling of a liquid using an electrothermal transducer such as a heating resistor, and a metal phase change caused by a temperature change. It is possible to use a shape memory alloy actuator to be used, an electrostatic actuator using an electrostatic force, or the like provided as pressure generating means for generating a pressure for discharging a droplet.

  A driver IC is mounted on the recording head 34 and is connected to a control unit (not shown) via a harness (flexible print cable) 22.

  In addition, the carriage 33 is equipped with a sub tank 35 for each color for supplying ink of each color to the recording head 34. As described above, each color sub-tank 35 is supplementarily supplied with ink of each color from the ink cartridge 10 of each color mounted in the cartridge loading unit 4 via the ink supply tube 36 of each color. The cartridge loading 4 is provided with a supply pump unit 24 for feeding ink in the ink cartridge 10, and the ink supply tube 36 is engaged with the rear plate 21 </ b> C constituting the frame 21 in the middle of turning. It is held by a stop member 25.

  On the other hand, as a paper feeding unit for feeding the papers 42 stacked on the paper stacking unit (pressure plate) 41 of the paper feeding tray 2, a half-moon roller (feeding) that separates and feeds the papers 42 one by one from the paper stacking unit 41. A separation pad 44 made of a material having a large friction coefficient is provided facing the paper roller 43) and the paper feed roller 43, and the separation pad 44 is urged toward the paper feed roller 43 side.

  In order to feed the paper 42 fed from the paper feeding unit to the lower side of the recording head 34, a guide member 45 for guiding the paper 42, a counter roller 46, a transport guide member 47, and a tip pressure roller. And a holding belt 48 which is a conveying means for electrostatically attracting the fed paper 42 and conveying it at a position facing the recording head 34.

  The transport belt 51 is an endless belt, and is configured to wrap around the transport roller 52 and the tension roller 53 and circulate in the belt transport direction (sub-scanning direction). This transport belt 51 is, for example, a surface layer that is a sheet adsorbing surface formed of a pure resin material having a thickness of about 40 μm that is not subjected to resistance control, such as ETFE pure material, and resistance control by carbon with the same material as this surface layer. And a back layer (medium resistance layer, ground layer).

  A charging roller 56 is provided as charging means for charging the surface of the conveyor belt 51. The charging roller 56 is disposed so as to come into contact with the surface layer of the conveyor belt 51 and to be rotated by the rotation of the conveyor belt 51, and applies a predetermined pressing force to both ends of the shaft as a pressing force. The transport roller 52 also functions as an earth roller, and is in contact with the middle resistance layer (back layer) of the transport belt 51 and is grounded.

  In addition, a guide member 57 is disposed on the back side of the conveyance belt 51 so as to correspond to a printing area by the recording head 34. The guide member 57 has an upper surface that protrudes toward the recording head 35 from the tangent line of two rollers (the conveyance roller 52 and the tension roller 53) that support the conveyance belt 51, thereby maintaining high-precision flatness of the conveyance belt 51. Like to do.

  The transport belt 51 rotates in the belt transport direction of FIG. 4 when the transport roller 52 is rotationally driven via a timing belt by a sub-scanning motor (not shown).

  Further, as a paper discharge unit for discharging the paper 42 recorded by the recording head 34, a separation claw 61 for separating the paper 42 from the conveying belt 51, a paper discharge roller 62, and a paper discharge roller 63 are provided. The paper discharge tray 3 is provided below the paper discharge roller 62. Here, the height from between the paper discharge roller 62 and the paper discharge roller 63 to the paper discharge tray 3 is increased to some extent in order to increase the amount that can be stored in the paper discharge tray 3.

  A duplex unit 71 is detachably mounted on the back surface of the apparatus body 1. The duplex unit 71 takes in the paper 42 returned by the reverse rotation of the conveyance belt 51, reverses it, and feeds it again between the counter roller 46 and the conveyance belt 51. The upper surface of the duplex unit 71 is a manual feed tray 72.

  Further, as shown in FIG. 4, a maintenance / recovery mechanism 81 including a recovery means for maintaining and recovering the nozzle state of the recording head 34 is disposed in the non-printing area on one side of the carriage 33 in the scanning direction. Yes.

  The maintenance / recovery mechanism 81 includes cap members (hereinafter referred to as “caps”) 82a to 82d (hereinafter referred to as “caps 82” when not distinguished from each other) for capping the nozzle surfaces of the recording head 34, and nozzle surfaces. A wiper blade 83 that is a blade member for wiping the ink, and an empty discharge receiver 84 that receives liquid droplets when performing empty discharge for discharging liquid droplets that do not contribute to recording in order to discharge the thickened recording liquid. ing. Here, the cap 82a is a suction and moisture retention cap, and the other caps 82b to 82d are moisture retention caps.

  Then, the waste liquid of the recording liquid generated by the maintenance / recovery operation by the maintenance / recovery mechanism 81, the ink discharged to the cap 82, the ink adhered to the wiper blade 83 and removed by the wiper cleaner 85, and the idle ejection to the idle ejection receiver 84. The discharged ink is discharged and stored in a waste liquid tank (not shown).

  Further, as shown in FIG. 4, in the non-printing area on the other side in the scanning direction of the carriage 33, idle discharge is performed to discharge liquid droplets that do not contribute to recording in order to discharge the recording liquid thickened during recording or the like. An empty discharge receiver 88 for receiving the droplets at the time is disposed, and the empty discharge receiver 88 is provided with an opening 89 along the nozzle row direction of the recording head 34.

  In the ink jet recording apparatus configured as described above, the sheets 42 are separated and fed one by one from the sheet feeding tray 2, and the sheet 42 fed substantially vertically upward is guided by the guide 45, and the transport belt 51 and the counter roller 46, and the leading end is guided by the conveying guide 47 and pressed against the conveying belt 51 by the leading end pressing roller 49, and the conveying direction is changed by approximately 90 °.

  At this time, a positive voltage output and a negative output are alternately repeated from the AC bias supply unit to the charging roller 56 by a control circuit (not shown), that is, a charging voltage pattern in which an alternating voltage is applied and the conveying belt 51 alternates. That is, plus and minus are alternately charged in a band shape with a predetermined width in the sub-scanning direction which is the circumferential direction. When the paper 42 is fed onto the conveyance belt 51 charged alternately with plus and minus, the paper 42 is attracted to the conveyance belt 51, and the paper 42 is conveyed in the sub-scanning direction by the circular movement of the conveyance belt 51.

  Therefore, by driving the recording head 34 according to the image signal while moving the carriage 33, ink droplets are ejected onto the stopped paper 42 to record one line, and after the paper 42 is conveyed by a predetermined amount, Record the next line. Upon receiving a recording end signal or a signal that the trailing edge of the paper 42 has reached the recording area, the recording operation is finished and the paper 42 is discharged onto the paper discharge tray 3.

  Further, during printing (recording) standby, the carriage 33 is moved to the maintenance / recovery mechanism 81 side, and the recording head 34 is capped by the cap 82 to keep the nozzles in a wet state, thereby preventing ejection failure due to ink drying. . Further, the recording liquid is sucked from the nozzle by a suction pump (not shown) with the recording head 34 capped by the cap 82 (referred to as “nozzle suction” or “head suction”), and the thickened recording liquid and bubbles are discharged. Perform recovery action. In addition, an idle ejection operation for ejecting ink not related to recording is performed before the start of recording or during recording. As a result, the stable ejection performance of the recording head 34 is maintained.

  Next, a first embodiment of a recording liquid cartridge according to the present invention used as an ink cartridge (recording liquid cartridge) 10 of the image forming apparatus will be described with reference to FIGS. 5 is an exploded perspective view of the ink cartridge, and FIG. 6 is a cross-sectional view of the ink cartridge. Note that, unlike FIG. 1 and the like, the outer shape is simplified.

  The ink cartridge 10 includes an ink bag 111 which is a recording liquid storage bag filled with ink, and a case 112 as an exterior for detachably storing the ink bag 111 therein. The case 112 includes a first case 112A and a second case 112B that are substantially similar in outer shape divided into two parts, thereby protecting the side surface of the ink bag 111 and constituting the exterior of the ink cartridge 10. .

  For example, the ink bag 111 discharges the recording liquid (ink) to a substantially rectangular (in this case, rectangular) flexible bag body 121 formed by fusing the periphery of two aluminum laminate films. An ink discharge port (supply port) 122 (supplied to the apparatus main body 1) is provided.

  The wall surface without the first and second cases 112A and 112B constituting the case 112 is provided with protruding walls 113A and 113B that substantially divide the ink bag 111 to be divided into two in a direction orthogonal to the ink supply direction. ing.

  Since the ink cartridge 10 is configured as described above, when the ink bag 111 containing the ink is stored in the case 112, the ink bag 111 is substantially centered by the protruding walls 113A and 113B as shown in FIG. It becomes a state where it is pressed and constricted from both sides, and is substantially divided into the accommodating portion portions 111a and 111b (however, the accommodating portion portions 111a and 111b communicate with each other).

  Thus, for example, as shown in FIG. 7, when the recording liquid cartridge 10 falls with the ink supply port 122 facing down, the impact is dispersed by the wall surfaces 113a and 113b of the projection walls 113A and 113B serving as receiving surfaces. .

  In this way, the case is provided with a protruding wall that substantially divides the recording liquid containing bag into a plurality of parts, so that the impact of dropping and the influence of vibration are dispersed for each divided part unit. The liquid storage bag is less likely to be damaged, and it is not necessary to change the shape of the case depending on the volume of the recording liquid filled in the recording liquid storage bag, and the number of parts can be reduced.

Next, the second and subsequent embodiments of the recording liquid cartridge according to the present invention will be described with reference to FIG.
First, in the second embodiment shown in FIG. 8, the contact portions (tip portions) of the protruding walls 113A and 113B with the ink bag 111 are curved, and the ink bag 111 is configured in this way. The risk of damage to the protruding walls 113A and 113B is reduced.

  In the third embodiment shown in FIG. 9, the protrusion walls 113A and 113B are formed in an asymmetric shape with different heights. In the fourth embodiment shown in FIG. 10, only the protruding wall 113A on the one case 112A side is provided, and the protruding wall 113B on the other case 112B side is not provided.

  By configuring as in the fourth embodiment, it is possible to reduce the remaining amount of ink when the ink cartridge 10 is used horizontally. That is, when the protruding walls 113A and 113B protrude from both sides with respect to the ink bag 111 as in the first embodiment, the ink supply will occur when the ink cartridge 10 is used in a horizontal position as shown in FIG. There is a possibility that the constriction 125 occurs in the protruding wall 113B and the ink cannot be sufficiently sucked out due to the weight of the ink remaining in the accommodating portion 111b on the side far from the opening 122. On the other hand, with the configuration as in the fourth embodiment, even when the ink cartridge 10 is used in the horizontal state, the other projection wall 113B is not present, so that the constriction does not occur and the ink is sufficiently sucked out. Can do.

  In the fifth embodiment shown in FIG. 12, the protrusions 113A, 113B and 113C, 113D are provided at two locations, so that the ink bag 111 is substantially divided into three portions. When using a large-sized ink bag 111 or the like, the impact dispersion unit can be made finer by roughly dividing at three or more locations.

  In the sixth embodiment shown in FIG. 13, the projecting walls 113A and 113B of the first and second cases 112A and 112B are provided in an alternating manner without facing each other.

  The seventh embodiment shown in FIG. 14 differs from the above embodiments in that projecting walls 113A and 113B are provided in the direction along the ink supply direction. In addition, it can also be provided in an oblique direction.

Next, eighth and ninth embodiments of the present invention will be described with reference to FIGS. Each figure is a perspective explanatory view of a second case of each embodiment.
In the eighth embodiment shown in FIG. 15, a protruding wall 113B provided on the second case 112B is formed separately from the second case 112B, and the protruding wall 113B is formed on the inner wall surface of the second case 112B with a double-sided adhesive tape 115. It is attached detachably. The protruding wall 113A provided in the first case 112A is configured in the same manner.

  In the ninth embodiment shown in FIG. 16, the guide wall 113B provided on the second case 112B is formed separately from the second case 112B, and the guide wall 113B is formed on the inner wall surface of the second case 112B. It is attached along the inner wall surface of the second case 112B so as to be detachable. The protruding wall 113A provided in the first case 112A is configured in the same manner.

  In other words, when a large-capacity ink cartridge is configured, if there is a protruding wall, it will be a loss in terms of the volume of the case. Therefore, for large-capacity ink cartridges, it is not necessary to provide protrusions only when the capacity is small, without providing protrusion walls, and there is no need to change the case for each capacity of the ink cartridge, and capacity loss is eliminated. can do. By configuring as in each of these embodiments, it is possible to make a large capacity and a small capacity from one type of case. Also, if the double-sided adhesive tape can be peeled off, it is possible to make both large and small capacities when collecting used cartridges and recycling them as parts.

Next, a tenth embodiment of the present invention will be described with reference to FIG.
In the above embodiment, the case of the recording liquid cartridge is divided into two. However, in this embodiment, the case is composed of a box-shaped case body 131 and a lid member 132 that covers the opening of the box-shaped case body 131. 130, and projecting walls 113B and 113A are provided on at least one of the inner surface side of the case main body 131 and the lid member 132.

  In the above embodiment, the image forming apparatus is described as having a printer configuration. However, the present invention can be similarly applied to a facsimile apparatus, a copying machine, and a printer / fax / copier having a combined function. . In the above embodiment, the ink cartridge used in the sub tank system is described, but the present invention is not limited to this.

FIG. 3 is a perspective explanatory view seen from the front side of the ink jet recording apparatus as the image forming apparatus according to the present invention. FIG. 4 is an explanatory perspective view of a state in which a front cover of a cartridge loading unit of the recording apparatus is opened. It is a side schematic block diagram explaining the whole structure of the mechanism part of the apparatus. It is principal part plane explanatory drawing of the mechanism part. FIG. 3 is an exploded perspective view of the ink cartridge according to the first embodiment of the present invention used in the apparatus. FIG. 4 is a cross-sectional explanatory view of the same ink cartridge. It is sectional explanatory drawing with which it uses for description of an effect | action of the embodiment. It is a cross-sectional explanatory view of an ink cartridge according to a second embodiment of the present invention. FIG. 6 is a cross-sectional explanatory diagram of an ink cartridge according to a third embodiment of the present invention. It is a cross-sectional explanatory view of an ink cartridge according to a fourth embodiment of the present invention. FIG. 4 is a cross-sectional explanatory diagram when the ink cartridge of the first embodiment used for explanation of the operation of the embodiment is used in a horizontal position. FIG. 7 is an explanatory cross-sectional view of an ink cartridge according to a fifth embodiment of the present invention. It is a cross-sectional explanatory view of an ink cartridge according to a sixth embodiment of the present invention. It is a disassembled perspective explanatory drawing of the ink cartridge which concerns on 7th Embodiment of this invention. It is a perspective explanatory view of the case of the ink cartridge according to the eighth embodiment of the present invention. It is a perspective explanatory view of the case of the ink cartridge according to the ninth embodiment of the present invention. It is sectional explanatory drawing of the ink cartridge which concerns on 10th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Main body 2 ... Paper feed tray 3 ... Paper discharge tray 4 ... Cartridge loading part 10k, 10c, 10m, 10y ... Ink cartridge 33 ... Carriage 34 ... Recording head 35 ... Sub tank 36 ... Ink supply tube 51 ... Conveying belt 111 ... Ink bag 112 ... Housing 112A ... First housing 112B ... Second housing 113A ... Projection wall 113B ... Projection wall 122 ... Ink discharge port (ink supply port)

Claims (4)

  In the recording liquid cartridge in which the recording liquid storage bag for storing the recording liquid is stored in the case, a protrusion wall that substantially divides the recording liquid storage bag into a plurality of portions is provided in the case. Recording liquid cartridge.   2. The recording liquid cartridge according to claim 1, wherein the recording liquid containing bag is substantially divided into three or more parts.   3. The recording liquid cartridge according to claim 1, wherein the protruding wall is detachable from the case. 4. An image forming apparatus comprising: a recording head that discharges recording liquid droplets; and a recording liquid cartridge that stores and holds the recording liquid supplied to the recording head, wherein the recording liquid cartridge is any one of claims 1 to 3. An image forming apparatus comprising the recording liquid cartridge according to claim 1.

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