JP2024016843A - ink cartridge - Google Patents

Abstract

SOLUTION: An ink cartridge removably fitted to a fitting part of a printer includes a front end part 110 located at a front end in a fitting direction. The front end part is provided with a fitting groove 113 provided at an intersection of the upper end surface and the front end surface. A position regulation member is provided with a position regulating arm, a side surface near the front end surface in a fitting direction of the position regulating arm 131 being a stop surface, and the position regulation member is further provided with an extension part 133 provided on a stop surface. Projection in the direction opposite the fitting direction of the extension part does not exceed a lateral side near the fitting groove in a width direction of the ink cartridge of a corresponding stop surface.

EFFECT: An extension part is provided for an end part of a position regulating arm of a position regulation member, so that it is possible to effectively suppress inclination upward of a contact pin holder without increasing risks to interfere by the position regulation member and the contact pin holder in a fitting step of an ink cartridge. Thus, it is possible to reliably connect a chip and the contact pin holder.

SELECTED DRAWING: Figure 5

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to the technical field of inkjet printing, and specifically relates to ink cartridges.

Printers are increasingly widely used in people's lives and work. Ink cartridges are one of the consumables for printers and are essential to people's lives and work.

The prior art includes large-capacity ink cartridges that are inserted and installed linearly. Such an ink cartridge is provided with a front end portion that fits into the mounting portion of the printer at the front end in the mounting direction, and a tip is provided to be inclined at the front end portion, and a contact pin holder in the mounting portion of the printer is provided at the front end portion. It is also arranged to be inclined accordingly. Two position regulating members are provided above the front end of the large capacity ink cartridge, the position regulating member includes a position regulating arm and a support arm, the support arm connects the position regulating arm and the front end, The front end of the position regulating arm is located on the rear side of the front end. The mounting portion of the printer includes a contact pin holder. The contact pin holder is provided with two restricted parts. A contact pin provided in the contact pin holder contacts the chip and transmits an electric signal between the ink cartridge and the mounting portion. The space surrounded by the position regulating arms and front ends of the two position regulating members engages with the two restricted parts, and the position of the contact pin holder can be regulated in the height direction of the ink cartridge. can be determined accurately to ensure that the chip contacts the contact pin.

However, the contact pin holder has a degree of freedom of movement in a plane perpendicular to the mounting direction of the ink cartridge, and in the process of connecting the contact pin holder and the chip, the entire contact pin holder is tilted due to the elastic force of the contact pin, and the restricted portion is tilted. The end facing the ink cartridge is tilted upward, and the inclination gradually increases during the connection process, and when the position regulating member and the restricted part act, the upwardly tilted end of the restricted part becomes the front end of the position regulating arm. There is a risk that the chip and contact pin holder may not be able to connect reliably.

In the present invention, the contact pin holder has a degree of freedom of movement in a plane perpendicular to the mounting direction of the ink cartridge, and in the process of connecting the contact pin holder and the chip, the entire contact pin holder is tilted by the elastic force of the contact pin, and is not restricted. When the end of the part facing the ink cartridge is tilted upward, and the inclination gradually increases during the connection process, and the position regulating member and the restricted part are activated, the upwardly tilted end of the restricted part becomes the position regulating arm. To provide an ink cartridge for solving the problem that a tip and a contact pin holder cannot be reliably connected due to the ink cartridge coming into contact with the front end.

The ink cartridge according to the present invention includes a front end portion located at the front end in the mounting direction, a chip is provided on the front end portion, and the front end portion includes a front end surface provided at the front end in the mounting direction; The front end portion includes an upper end surface that intersects with the front end surface, and the front end portion is provided with a mounting groove at the intersection of the upper end surface and the front end surface, the chip is located in the mounting groove, and the chip is positioned in the mounting groove. The provided plane intersects the upper end surface and the front end surface, and two position regulating members are provided on the upper end surface, and in the width direction of the ink cartridge, the two position regulating members each intersect with the mounting surface. The position regulating member is located on both sides of the groove, and the width direction of the ink cartridge is perpendicular to the mounting direction and parallel to the upper end surface. The position regulating arm is located above the end surface, the extending direction of the position regulating arm is parallel to the mounting direction, the side surface of the position regulating arm near the front end surface in the mounting direction is a stop surface, and the position regulating arm further includes an extension part provided on the stop surface, and in the mounting direction, an end of the extension part close to the front end surface is located rearward than the front end surface, and the mounting direction of the extension part is different from the mounting direction. The projection in the opposite direction does not extend beyond the side of the corresponding stop surface that is close to the mounting groove in the width direction of the ink cartridge.

Optionally, the position restriction member further includes a support arm, the support arm connects the position restriction arm and the upper end surface, and the bottom surface of the extension part is flush with the bottom surface of the position restriction arm. be.

Optionally, a projection of a side surface of the outer extension portion close to the front end surface in a direction opposite to the mounting direction is located within the corresponding stop surface, and a projection of the outer extension portion in the width direction of the ink cartridge is located within the corresponding stop surface. The length is shorter than the length of the position regulating arm.

Optionally, in the width direction of the ink cartridge, the outer extension portion is located on a side of the corresponding stop surface that is closer to the mounting groove.

Optionally, a side surface of the external extension near the mounting groove is a transition surface, a side of the transition surface at a front end in the mounting direction is a front side, and a side of the transition surface at a rear end of the transition surface in the mounting direction is a front side. The side sides are rear sides, and the distance between the two front sides is longer than the distance between the two rear sides in the width direction of the ink cartridge.

Optionally, the rear side overlaps a side of the corresponding stop surface closer to the mounting groove.

Optionally, said transition plane is perpendicular to said top surface.

Optionally, the upper end surface is provided with relief portions that are recessed on both sides of the mounting groove along the width direction of the ink cartridge, and the relief portions communicate with the mounting groove.

Optionally, an end surface of the relief portion in the height direction of the ink cartridge is a relief surface, the relief surface is an inclined surface, the relief surface intersects with the front end surface, and the The side of the ink cartridge that is far from the front end surface is located above the side of the flank that is close to the front end surface, and the height direction of the ink cartridge is perpendicular to the top end surface.

Optionally, a projection of the extension in the height direction of the ink cartridge is at least partially located on the relief surface.

In the ink cartridge according to the present invention, by providing an extended portion at the end of the position regulating arm of the position regulating member, the risk of interference between the position regulating member and the contact pin holder in the width direction of the ink cartridge during the installation process of the ink cartridge is reduced. It is possible to effectively prevent the contact pin holder from tilting upward without increasing the height of the ink cartridge, and the position regulating member can regulate the position of the contact pin holder in the height direction of the ink cartridge. can be reliably connected.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to explain the embodiments of the present invention or the prior art more clearly, drawings necessary for explaining the embodiments or the prior art will be briefly described below. Obviously, the drawings described below are some embodiments of the invention, and a person skilled in the art can derive other drawings based on these drawings without any creative effort. .

FIG. 3 is a partial structural diagram of an existing mounting section. FIG. 2 is a schematic structural diagram of the contact pin holder of FIG. 1; FIG. 2 is a structural diagram of an ink cartridge and a tray in a separated state according to an embodiment of the present invention. 4 is a schematic top view of the ink cartridge of FIG. 3. FIG. FIG. 5 is a structural diagram of the front end portion of FIG. 4 viewed at a first angle. FIG. 5 is a structural diagram of the front end portion of FIG. 4 viewed at a second angle. FIG. 5 is a partial structural diagram of the front end portion of FIG. 4;

In order to make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly explained in detail below based on the drawings showing the embodiments of the present invention. Of course, the described embodiments are only some embodiments of the present invention, not all embodiments. Any other embodiments that a person skilled in the art may derive based on the embodiments of the present invention without requiring any creative action are within the scope of the present invention.

"First" and "second" are terms used for descriptive purposes only and are not intended to express or imply relative importance or number of technical features depicted. It should be understood that this has not been done. Accordingly, the features identified as "first" and "second" may be explicit or implied to include at least one feature. In describing the present invention, "a plurality" means at least two (eg, two, three, etc.) unless explicitly limited otherwise.

In the present invention, unless there are other express provisions or limitations, terms such as "attached", "connected", and "fixed" should be broadly understood, e.g., fixed connections, removable The connection between two It may be internal communication of elements or mutual interaction. Those skilled in the art can understand the specific meanings of these terms in the present invention depending on the specific situation.

In the present invention, unless expressly specified or limited otherwise, a first feature being "above" or "below" a second feature does not refer to direct contact between the first feature and the second feature or It may also be an mediated contact between the first and second features. Also, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or diagonally above the second feature; It may only indicate that the horizontal height of the feature is higher than the second feature. The first feature being "below", "beneath" and "under" the second feature may mean that the first feature is directly below or diagonally below the second feature, and the first feature may be located directly below or diagonally below the second feature; It may only indicate that the height is less than the second feature.

In the foregoing description, references to the terms "one embodiment," "some embodiments," "example," "specific examples," or "some examples" refer to the terms described in the embodiment or examples. A specific feature, structure, material, or characteristic described above is meant to be included in at least one embodiment or example of the invention. In this specification, the schematic representations of the above terms do not necessarily relate to the same embodiment or example. Additionally, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, unless consistent with each other, those skilled in the art can combine or combine different embodiments or examples described herein with features of different embodiments or examples.

In related technology, the contact pin holder has a degree of freedom of movement in a plane perpendicular to the direction in which the ink cartridge is installed, and in the process of connecting the contact pin holder and the chip, the entire contact pin holder is tilted by the elastic force of the contact pin. , the end of the restricted part facing the ink cartridge tilts upward, the degree of inclination gradually increases during the connection process, and when the position regulating member and the restricted part act, the upwardly tilted end of the restricted part tilts upward. Since the position regulating member comes into contact with the front end of the position regulating arm, the position regulating member cannot regulate the position of the contact pin holder in the height direction of the ink cartridge, and there is a possibility that the chip and the contact pin holder cannot be reliably connected.

In order to solve the above problems, embodiments of the present invention provide an ink cartridge. By providing the extension part at the end of the position regulation arm of the position regulation member, when the contact pin holder and the chip are connected, the end of the restricted part facing the ink cartridge is located below the extension part, and the extension part allows It is possible to effectively prevent the contact pin holder from tilting upward, and the position regulating member can regulate the position of the contact pin holder in the height direction of the ink cartridge, so the chip and the contact pin holder are reliably connected. can be done. In addition, since the projection of the extension part in the direction opposite to the mounting direction does not exceed the side of the corresponding stop surface that is close to the mounting groove in the width direction of the ink cartridge, the extension part is used as a position regulating member during the installation process of the ink cartridge. The risk of interference between the ink cartridge and the contact pin holder in the width direction of the ink cartridge is not increased.

Hereinafter, ink cartridges according to embodiments of the present invention will be described in detail based on specific embodiments.

FIG. 1 is a partial structural diagram of an existing mounting part. FIG. 2 is a schematic structural diagram of the contact pin holder of FIG. 1. FIG. 3 is a structural diagram of an ink cartridge and a tray in a separated state according to an embodiment of the present invention. FIG. 4 is a schematic top view of the ink cartridge of FIG. 3.

As shown in FIGS. 1 to 4, an embodiment of the present invention provides an ink cartridge 100 that is removably installed in a mounting section 50 of a printer. The ink cartridge 100 is installed in the installation section 50 along a linear installation direction. Although the ink cartridge 100 is an ink bag type ink cartridge, it may be another type of large capacity ink cartridge. In FIGS. 1, 3, and 4, the +Y-axis direction is the mounting direction.

The printer further includes a tray 20. When the ink cartridge 100 is placed on the tray 20, it becomes an assembly, and the assembly is mounted on the mounting section 50 along the mounting direction.

As shown in FIG. 1, the mounting section 50 includes a frame, a device-side terminal section 52, two positioning sections 53, an ink supply needle 51, and a lock section 54. The device side terminal portion 52 includes a contact pin holder 52t. The contact pin provided on the contact pin holder 52t is for contacting the chip 120 of the ink cartridge 100. The contact pin holder 52t has a degree of freedom of movement in a plane perpendicular to the mounting direction of the ink cartridge 100.

As shown in FIG. 3, the tray 20 has a substantially rectangular parallelepiped shape with an opening, and the tray 20 includes a first surface 20a, a second surface 20b, an accommodation bottom surface 20c, an opening 20d, and a first side surface 20e. and a second side surface 20f. A three-dimensional orthogonal coordinate system XYZ is used in which three coordinate axes, X, Y, and Z, are orthogonal to each other. The direction from the opening 20d to the housing bottom surface 20c is the +Z-axis direction, and the +Z-axis direction is also called the vertical direction. The direction from the second surface 20b to the first surface 20a is the +Y-axis direction, and the +Y-axis direction is also called the mounting direction in which the assembly including the ink cartridge and the tray 20 is mounted on the mounting section 50. The direction from the second side surface 20f to the first side surface 20e is the +X-axis direction. The first surface 20a is a surface on the front end side in the mounting direction. The coordinate system of the mounting section 50 coincides with the coordinate system of the tray 20 when the tray 20 is mounted on the mounting section 50.

The tray 20 further includes a receiving chamber 210, a fixing mechanism, and a tray positioning section 21. The accommodation chamber 210 is for accommodating the ink cartridge 100, and two tray positioning parts 21 are provided on the first surface 20a. When the tray 20 is mounted on the mounting section 50, the tray positioning section 21 and the positioning section 53 engage with each other, so that the approximate position of the tray 20 in the direction perpendicular to the mounting direction can be determined. Since the lock portion 54 and the tray 20 are engaged with each other, the tray 20 can be prevented from detaching from the mounting portion 50.

As shown in FIGS. 3 and 4, the coordinate system of the ink cartridge 100 coincides with the coordinate system of the tray 20 when the ink cartridge 100 is attached to the tray 20. The ink cartridge 100 includes a front end portion 110 located at the front end in the mounting direction. A tip 120 is provided at the front end 110. The front end portion 110 includes a front end surface 111 provided at the front end in the mounting direction, and an upper end surface 112 that intersects with the front end surface 111. The front end portion 110 is provided with a mounting groove 113 at the intersection of the upper end surface 112 and the front end surface 111. The chip 120 is located in the mounting groove 113, and the plane on which the chip 120 is provided intersects the upper end surface 112 and the front end surface 111. Two position regulating members 130 are provided on the upper end surface 112. In the width direction of the ink cartridge 100, the two position regulating members 130 are located on both sides of the mounting groove 113, respectively.

As shown in FIG. 3, the front end portion 110 further includes an ink outlet 114 for engaging with the ink supply needle 51, and an ink reservoir 140 for storing ink.

Note that the width direction of the ink cartridge 100 may be the extending direction of the X axis, and the width direction of the ink cartridge 100 is perpendicular to the mounting direction and parallel to the upper end surface 112, and The longitudinal direction may be the direction in which the Z-axis extends, and the longitudinal direction of the ink cartridge 100 may be the direction in which the Y-axis extends. The Y-axis is parallel to the upper end surface 112 and perpendicular to the front end surface 111. The X-axis is parallel to the upper end surface 112 and the front end surface 111.

FIG. 5 is a structural diagram of the front end portion of FIG. 4 viewed at a first angle. FIG. 6 is a structural diagram of the front end portion of FIG. 4 viewed at a second angle. FIG. 7 is a partial structural diagram of the front end portion of FIG. 4.

As shown in FIGS. 4, 5, and 6, the position regulating member 130 includes a position regulating arm 131, the position regulating arm 131 is located above the upper end surface 112, and the extending direction of the position regulating arm 131 is A side surface parallel to the direction and close to the front end surface 111 in the mounting direction of the position regulating arm 131 is a stop surface 1311.

The position regulating member 130 further includes an extension portion 133 provided on the stop surface 1311. In the mounting direction, an end portion of the extension portion 133 that is close to the front end surface 111 is located further back than the front end surface 111 . The projection of the extension portion 133 in the direction opposite to the mounting direction does not exceed the side of the corresponding stop surface 1311 that is close to the mounting groove 113 in the width direction of the ink cartridge 100.

The position regulating member 130 further includes a support arm 132. Support arm 132 connects position regulating arm 131 and upper end surface 112.

The bottom surface of the extension part 133 may be flush with the bottom surface of the position regulating arm 131. In other embodiments, the bottom surface of the extension portion 133 may not be flush with the bottom surface of the position regulating arm 131. The bottom surface of the externally extending portion 133 is a surface facing the upper end surface 112 of the externally extending portion 133 . The bottom surface of the position regulating arm 131 is a surface facing the upper end surface 112 of the position regulating arm 131.

The front end portion 110 regulates the position of the contact pin holder 52t in the height direction of the ink cartridge 100 by two position regulating members 130. Specifically, as shown in FIG. 2, one restricted portion 52g is provided on each side of the contact pin holder 52t, and when the contact pin holder 52t and the chip 120 are connected, the restricted portion 52g of the ink cartridge 100 is The end facing towards is located below the extension part 133. That is, the restricted portion 52g enters the action range of the position regulating member 130 at the initial stage of upward tilting and is inserted into the gap between the outer extension portion 133 and the upper end surface 112. In this way, the extension portion 133 can effectively prevent the contact pin holder 52t from tilting upward. The position regulating member 130 can regulate the position of the contact pin holder 52t in the height direction of the ink cartridge 100. Thereby, the chip 120 and the contact pin holder 52t can be reliably connected, and the stability of the electrical connection between the chip 120 and the mounting portion 50 can be ensured. In the initial stage of upward tilting, the contact pin holder 52t and the chip 120 are in contact but there is no acting force between them, until the contact pin holder 52t and the chip 120 are in contact and an acting force is generated between them. This is the period of

When the restricted portion 52g is inserted between the outer extension portion 133 and the upper end surface 112, there may be a gap between the restricted portion 52g and the outer extension portion 133.

Since the projection of the outer extension part 133 in the direction opposite to the mounting direction does not exceed the side of the corresponding stop surface 1311 that is close to the mounting groove 113 in the width direction of the ink cartridge 100, the outer extension part 133 does not allow the mounting of the ink cartridge 100. In the process, the risk of interference between the position regulating member 130 and the contact pin holder 52t in the width direction of the ink cartridge 100 is not increased. Specifically, the projection of the outer extension portion 133 in the direction opposite to the mounting direction (i.e., the -Y direction) corresponds to the mounting groove 113 in the width direction of the ink cartridge 100 of the corresponding stopper surface 1311 (i.e., the +X direction). Therefore, the part of the contact pin holder 52t between the two restricted parts 52g can be avoided in the width direction of the ink cartridge 100, and as a result, the front end part 110 and the contact pin holder 52t are without increasing the risk of interference in the direction.

Note that the degrees to which the two restricted portions 52g are inclined upward in the height direction of the ink cartridge 100 may or may not be the same.

When the assembly consisting of the ink cartridge 100 and the tray 20 is installed in the mounting section 50, the locking section 54 and the fixing mechanism of the tray 20 are engaged, so that the assembly cannot be removed from the mounting section 50. Since the tray positioning portion 21 and the positioning portion 53 are engaged, the general position of the assembly in the direction perpendicular to the mounting direction is determined, and the ink outlet 114 and the ink supply needle 51 are engaged. Therefore, the ink in the ink cartridge 100 can be supplied to the mounting section 50 and used for printing, and the contact pin provided on the contact pin holder 52t in the device side terminal section 52 is in contact with the chip 120. , transmission of electrical signals between the ink cartridge 100 and the mounting section 50 is realized. When the contact pin holder 52t and the chip 120 are connected, the end of the restricted portion 52g facing the ink cartridge 100 is located below the extension portion, and the extension portion 133 effectively prevents the contact pin holder 52t from tilting upward. The position regulating member 130 can regulate the position of the contact pin holder 52t in the height direction of the ink cartridge 100, thereby making it possible to reliably connect the chip 120 and the contact pin holder 52t.

Optionally, the projection of the side surface of the extension part 133 near the front end surface 111 in the direction opposite to the mounting direction is located within the corresponding stop surface 1311, and the side surface of the extension part 133 in the mounting direction of the ink cartridge 100 is located within the corresponding stop surface 1311. does not exceed the area of the stop surface 1311, and in the width direction of the ink cartridge 100, the length of the extended portion 133 is shorter than the length of the position regulating arm 131. In other words, the extended portion 133 is shorter than the position regulating arm 131. As a result, the projection of the extension portion 133 in the direction opposite to the mounting direction does not exceed the side of the corresponding stopper surface 1311 that is close to the mounting groove 113 in the width direction of the ink cartridge 100 .

Here, in the width direction of the ink cartridge 100, the outer extension portion 133 is located on the side of the corresponding stop surface 1311 that is closer to the mounting groove 113.

Optionally, as shown in FIGS. 5 to 7, the side surface of the outer extension portion 133 close to the mounting groove 113 is a transition surface 133a, and the side surface at the front end of the transition surface 133a in the mounting direction is a front side 133b; The side edge of the transition surface 133a at the rear end in the mounting direction is a rear side edge 133c.

Here, in the width direction of the ink cartridge 100, the distance between the two front sides 133b of the two outer extensions 133 is longer than the distance between the two rear sides 133c. As a result, the extending direction of the transition surface 133a is inclined with respect to the mounting direction of the ink cartridge 100, and the projection of the outer extension portion 133 in the direction opposite to the mounting direction of the ink cartridge 100 of the corresponding stop surface 1311 is inclined. Do not exceed the side near the mounting groove 113 in the width direction. Such a design is advantageous in that the two extending portions 133 avoid the portion of the contact pin holder 52t between the two restricted portions 52g in the width direction of the ink cartridge 100.

Optionally, in one embodiment, the rear side edge 133c may overlap the side edge of the corresponding stop surface 1311 closer to the mounting groove 113.

Optionally, transition surface 133a may be perpendicular to top surface 112. With such a design, it is possible to make the distances in the width direction of the ink cartridge 100 at the points where the two transition surfaces 133a of the two external extension parts 133 are the same in the mounting direction of the ink cartridge 100 to be the same, so that the ink cartridge 100 It is advantageous to avoid a portion of the contact pin holder 52t between the two restricted portions 52g in the width direction.

Optionally, as shown in FIG. 5, the upper end surface 112 is provided with relief portions that are recessed on both sides of the mounting groove 113 along the width direction of the ink cartridge 100, and the relief portions are concave with the mounting groove 113. It's communicating.

Here, the relief portion can avoid the upwardly inclined restricted portion 52g. The relief portion may be a relief groove. The end surface of the relief portion in the height direction of the ink cartridge is a relief surface 1121, and the relief surface 1121 is provided close to the front end surface 111.

The relief surface 1121 may be an inclined surface. The flank surface 1121 intersects with the front end surface 111, and the side of the flank 1121 that is far from the front end surface 111 is located higher than the side of the flank 1121 that is close to the front end surface 111. With such a design, since the relief portion avoids the restricted portion 52g at the initial stage when the restricted portion 52g tilts upward, it is possible to effectively prevent the restricted portion 52g from further tilting upward.

A projection of the extension portion 133 in the height direction of the ink cartridge 100 is located at least partially on the flank 1121 . The height direction of the ink cartridge 100 is perpendicular to the upper end surface 112. With such a design, the relief portion can avoid the restricted portion 52g even at the beginning of position restriction of the contact pin holder 52t by the position restriction member 130, thereby ensuring a reliable connection between the chip 120 and the contact pin holder 52t. be able to.

It should be noted that each of the above embodiments is merely for explaining the invention according to the present application, and is not intended to limit it. Although the present application has been described in detail based on each of the above-mentioned embodiments, those skilled in the art will be able to modify the invention described in each of the above-mentioned embodiments or make some or all of the technical features equivalent. It is understood that substitutions may be made, and these changes or substitutions do not depart from the spirit of the invention from the scope of the invention according to the embodiments herein.

50 Mounting part 51 Ink supply needle 52 Device side terminal part 52t Contact pin holder 52g Restricted part 53 Positioning part 54 Lock part 20 Tray 20a First surface 20b Second surface 20c Accommodation bottom surface 20d Opening 20e First side surface 20f Second side surface 210 Accommodation Chamber 21 Tray positioning section 100 Ink cartridge 110 Front end 111 Front end surface 112 Upper end surface 1121 Relief surface 113 Mounting groove 114 Ink outlet 120 Chip 130 Position regulating member 131 Position regulating arm 1311 Stopping surface 132 Support arm 133 Extended section 133a Transition surface 133b Front side Side 133c Back side 140 Ink storage section

Claims (10)

An ink cartridge that is removably installed in a mounting section of a printer along a linear mounting direction,
The ink cartridge includes a front end portion located at the front end in the mounting direction, a chip is provided at the front end portion, and the front end portion includes a front end surface provided at the front end in the mounting direction, and a front end portion located at the front end in the mounting direction. the front end portion is provided with a mounting groove at the intersection of the upper end surface and the front end surface, the chip is located in the mounting groove, and the chip is disposed in the mounting groove. The plane intersects the upper end surface and the front end surface, and two position regulating members are provided on the upper end surface, and in the width direction of the ink cartridge, the two position regulating members are respectively located in the mounting groove. located on both sides, the width direction of the ink cartridge is perpendicular to the mounting direction and parallel to the upper end surface;
The position regulating member includes a position regulating arm, the position regulating arm is located above the upper end surface, the extending direction of the position regulating arm is parallel to the mounting direction, and the position regulating arm is arranged in the mounting direction. A side surface close to the front end surface in the mounting direction is a stop surface, the position regulating member further includes an extension part provided on the stop surface, and an end of the extension part near the front end surface in the mounting direction is a stop surface. The projection of the externally extending portion in the direction opposite to the mounting direction, located at the rear of the front end surface, does not exceed the side of the corresponding stop surface that is close to the mounting groove in the width direction of the ink cartridge. Characteristic ink cartridges. The position regulating member further includes a support arm, the support arm is connected to the position regulating arm and the upper end surface, and the bottom surface of the extension part is flush with the bottom surface of the position regulating arm. The ink cartridge according to claim 1. A projection of a side surface of the extension portion near the front end surface in a direction opposite to the mounting direction is located within the corresponding stop surface,
The ink cartridge according to claim 1, wherein the length of the outer extension portion is shorter than the length of the position regulating arm in the width direction of the ink cartridge. The ink cartridge according to claim 3, wherein, in the width direction of the ink cartridge, the outer extension portion is located on a side of the corresponding stop surface closer to the mounting groove. A side surface of the external extension portion near the mounting groove is a transition surface, a side of the transition surface at the front end in the mounting direction is the front side, and a side of the transition surface at the rear end in the mounting direction is the rear side. The ink cartridge according to claim 1, wherein the distance between the two front sides is longer than the distance between the two rear sides in the width direction of the ink cartridge. The ink cartridge according to claim 5, wherein the rear side overlaps a side of the corresponding stop surface that is closer to the mounting groove. The ink cartridge according to claim 5, wherein the transition surface is perpendicular to the upper end surface. The upper end surface is provided with relief portions that are recessed on both sides of the mounting groove along the width direction of the ink cartridge, and the relief portions are in communication with the mounting groove. 8. The ink cartridge according to any one of 1 to 7. The end surface of the relief portion in the height direction of the ink cartridge is a relief surface, the relief surface is an inclined surface, the relief surface intersects with the front end surface, and the side of the relief surface that is far from the front end surface is 9. A side edge of the ink cartridge is located higher than a side edge of the flank closer to the front end surface, and a height direction of the ink cartridge is perpendicular to the upper end surface. ink cartridge. The ink cartridge according to claim 9, wherein a projection of the extension portion in the height direction of the ink cartridge is at least partially located on the relief surface.

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