[001] Cartridges may be used in connection with printer systems. In some examples, such printer systems may not be equipped with a mechanical pumping arrangement for transport of printing fluid to the cartridges.

BRIEF DESCRIPTION OF THE DRAWINGS

[002] Examples will be described, by way of example only, with reference to the accompanying drawings in which corresponding reference numerals indicate corresponding parts and in which:

[003] Figures 1a and 1b are illustrations of an example holding fixture and an example carriage manifold of a printer system in a) front view and b) side view.

[004] Figures 2a and 2b are illustrations of example replaceable cartridges with a) one and b) three lid manifold input ports.

[005] Figures 3a, 3b and 3c are illustrations of an example cartridge lid, wherein Fig. 3a illustrates the example cartridge lid without additional parts, Fig. 3b additionally illustrates example sealing septums, and Fig. 3c illustrates the example cartridge lid with an example lid manifold mounted to it.

[006] Figures 4a and 4b are cross-section views through the example replaceable cartridge of Fig. 2b, wherein Fig. 4b shows a magnified section of Fig. 4a.

[007] Figures 5a, 5b, 5c, and 5d are illustrations of a further example replaceable cartridge. Figs. 5a and 5b illustrate an example lid manifold of the replaceable cartridge in a) perspective (top)-view and b) perspective (bottom)- view. Fig. 5c is a perspective view of the replaceable cartridge's body with an example cartridge lid mounted to it. Fig. 5d illustrates the replaceable cartridge with the example cartridge lid of Fig. 5c and the example lid manifold of Figs. 5a, 5b mounted to it.

[008] Figures 6a and 6b are illustrations of parts of an example printer system including the example holding fixture and the example carriage manifold of Figs. 1a and 1 b as well as the two example replaceable cartridges of Figs. 2a and 2b.

[009] Figures 7a, 7b, 7c, and 7d are illustrations of example removable plugs, wherein Fig. 7a is a side view of a first example removable plug, Fig. 7b is a perspective view of the first example removable plug inserted into the example replaceable cartridge of Fig. 2a, Fig. 7c is a cross-section view through Fig. 7b, and Fig. 7d is a perspective view of a second example removable plug to be inserted into the example cartridge of Fig. 2b.

[0010] Figure 8 is an illustration of an example removable tape to cover the example cartridge of Fig. 2b.

DETAILED DESCRIPTION

[0011] Printer systems without a mechanical pumping arrangement for transport of printing fluid are described. For such systems it is desirable to have replaceable cartridges, which can be removed from and installed in the printer system by users of the printer system.

[0012] Figs. 1a, and 1 b are schematic illustrations of an example holding fixture 1 and an example carriage manifold 2 of such a printer system, wherein Fig. 1a is a front view and Fig. 1 b is a side view illustration of said components of the printer system.

[0013] The holding fixture 1 is for the replaceable installation of replaceable cartridges (not shown in Figs. 1a and 1b) in the printer system. The replaceable cartridges can be installed in the holding fixture 1 by inserting the replaceable cartridges into the holding fixture 1. The holding fixture 1 may have a fastening system for fastening the inserted replaceable cartridges at an envisaged position. The holding fixture 1 of Figs. 1a and 1 b is for the installation of two replaceable cartridges. In other examples, the holding fixtures are for a single, three, four, or another number of replaceable cartridges.

[0014] The installed replaceable cartridges can be removed from the holding fixture again. In some examples, removing the replaceable cartridges from the holding fixture may require to undo a fastening mechanism of the fastening system of the holding fixture. As the replaceable cartridges may be removed from the holding fixture, the holding fixture may be referred to as a holding fixture to replaceably install replaceable cartridges.

[0015] The carriage manifold 2 has carriage manifold ports 3 to establish disconnectable fluid connections to the replaceable cartridges and, when connected, to supply printing fluid to the replaceable cartridges. The carriage manifold ports 3 may be fluidly connected to ink tanks located remotely from the replaceable cartridges. The connection to the ink tanks may be established via the respective end sections of the carriage manifold ports 3 which are not envisaged to be in direct, i.e., physical, contact with the replaceable cartridges. The carriage manifold 2 of Figs. 1a and 1 b has four carriage manifold ports 3, which are formed as, and/or have a shape of, flexible needles. In other examples, carriage manifolds may have another number of carriage manifold ports 3, such as one, two, three, five and six carriage manifold ports 3. In other examples, the carriage manifold ports 3 do have forms different from the flexible needle form of Figs 1a and 1 b.

[0016] The carriage manifold 2 is mounted to the holding fixture 1 to pivot around a pivot axis 4. For mounting to the holding fixture 1 the carriage manifold 2 is supported by a supporting structure. The supporting structure may either be part of the carriage manifold 2 or an independent part. The carriage manifold 2 has the ability to pivot around the pivot axis 4 from a first pivot position to a second pivot position. The pivoting movement is used to control the fluid connection between the carriage manifold 2 and the replaceable cartridges installed in the printer system. In the first pivot position the carriage manifold 2 is fluidly disconnected from the replaceable cartridges. In the second pivot position the carriage manifold 2 is in fluid connection with the replaceable cartridges to supply printing fluid to the replaceable cartridges. In Figs. 1a and 1 b the carriage manifold 2 is in the first pivot position and no replaceable cartridges are installed in the printer system. The transition between the first and second pivot positions of the carriage manifold 2 will be described in more detail later with reference to Figs. 4 and 5.

[0017] Figs. 2a and 2b are schematic illustrations of example replaceable cartridges 5, 6 to be installed in the holding fixture 1. The replaceable cartridges 5, 6 each comprises a cartridge body 7, 8, a cartridge lid 9, 10, and a lid manifold 13, 14.

[0018] The cartridge bodies 7, 8 are substantially prismatic and composed of rectangular, opposing faces. In this context, substantially prismatic means that the basic shape of the cartridge bodies 7, 8 is prismatic, while details of the cartridge bodies 7, 8 may deviate from the prismatic shape. In some examples, the shape of the cartridge body is entirely prismatic. The internal space of the cartridge bodies 7, 8 is partly hollow and may comprise an area for storage of printing fluid. In one example, the area for storage of printing fluid includes a foam structure capable of absorbing printing fluid to be stored.

[0019] The cartridge lids 9, 10 are formed as, and/or have a shape of, substantially two dimensional, planar sheets. In this context, substantially two- dimensional means that the thickness of the cartridge lids 9, 10 is small compared to their lengths and/or widths. Each of the sheets covers one face of the corresponding cartridge body 7, 8. In some examples, the cartridge lids 9, 10 themselves define the face of the corresponding cartridge bodies 7, 8, while in other examples the cartridge lid 9, 10 is mounted to the face of the corresponding cartridge bodies 7, 8. [0020] The lid manifold 13 of the replaceable cartridge 5 of Fig. 2a is mounted to the cartridge lid 9. In some examples, the mounting of the lid manifold 13 to the cartridge lid 9 is achieved by snap-fitting the lid manifold 13 to the cartridge lid 9. The lid manifold 13 comprises one lid manifold input port 15. This one lid manifold input port 15 is formed as, and/or has a shape of, a tube socket. The tube socket 15 protrudes away from the lid manifold 13 in a direction which is substantially perpendicular to the outer surface of the substantially two- dimensional planar cartridge lid 9. In this context, substantially perpendicular means that the tube socket 15 and the outer surface of the cartridge lid 9 include an angle between 85°-95°. In some examples, the included angle is entirely perpendicular, i.e., 90°. The tube socket 15 may be of such a shape that it is able to engage with one port 3 of the carriage manifold 2, which in the example of Figs. 1a and 1b are in the shape of flexible needles. If one flexible needle 3 and the tube socket 15 are engaged, a fluid connection between the carriage manifold 2 and the replaceable cartridge 5 is established.

[0021] In one example, the lid manifold 13 comprises a flat body, which has a minimal thickness sufficient to form a channel within the bulk of the flat body. The upper limit of the flat body's thickness is defined by the thickness of the channel plus the wall thickness around the channel. In other words, the flat body is as thin as possible under the consideration that it may accommodate said channel (the channels of the lid manifolds 3, 14 will be described in detail later with reference to Figs. 4). In one example, the tube socket 15 is also perpendicular to the outer surface of the flat body. In another example, the flat body thickness may be independent of the channel thickness. Laterally, the flat body of the lid manifold 13 extends over and covers a large portion of the cartridge lid 9..

[0022] In some examples, one type of printing fluid is supplied to the replaceable cartridge 5 via the one lid manifold input port 15, which is to be disco nnectably connected to one carriage manifold port 3 of the printer system. The replaceable cartridge 5 may then be referred to as "single printing fluid cartridge". [0023] The lid manifold 14 of the replaceable cartridge 6 of Fig. 2b comprises three lid manifold input ports 16, which are in the shape of separate tube sockets positioned along a straight line. In one example, the lid manifold 14 comprises a flat body, which accommodates three channels. In one example, the three channels inside the lid manifold 14 run next to each other along a plane which is substantially in parallel to the cartridge lid's 10 outer surface, wherein the channels do not cross each other. In this context, substantially parallel means that the channels and the cartridge lid's outer surface include an angle of less than 5°. In some examples, the extension direction of the channels is entirely parallel with respect to the outer surface of the cartridge lid 10. Besides having three tube sockets 16 and three channels, the lid manifold 14 of Fig. 2b is constructed similarly to the lid manifold 13 of Fig. 2a. Details described with respect to lid manifold 13 are also present in lid manifold 14, and vice versa.

[0024] In some examples, three separate fluid connections between the carriage manifold 2 of the printer system and the replaceable cartridge 6 can be disconnectably established, wherein each fluid connection is defined by a particular carriage manifold port 3 and a particular lid manifold input port 16. In some examples, one particular type of printing fluid is supplied to the replaceable cartridge 6 via each separate fluid connection. Then, three different types of printing fluid are supplied to the replaceable cartridge in total. In this case, the replaceable cartridge 6 may be referred to as "three printing fluid cartridge".

[0025] Figs. 2a and 2b illustrate replaceable cartridges 5, 6 with lid manifolds 13, 14 having one and three lid manifold input ports 15, 16, respectively. In other examples, replaceable cartridges have two, four, five, six, or a different number of lid manifold input ports. Replaceable cartridges having more than one lid manifold input port with corresponding separate fluid connection may generally be referred to as "multi printing fluid cartridges." [0026] Also, Figs. 2a and 2b illustrate lid manifold input ports 15, 16 as being in the shape of tube sockets. In other examples, the lid manifold input ports may have a different form. Generally, the form of the lid manifold input ports may fit together with the form of the corresponding carriage manifold ports, so that the removable engagement of lid manifold input ports and carriage manifold ports may provide liquid and air tight fluid connections between the carriage manifold and the replaceable cartridge.

[0027] In some examples, the lid manifold input ports being in the shape of tube sockets (such as input ports 15, 16 shown in Figs. 2a and 2b) are provided with a notch. The notch is formed at the mouth of the tube socket and extends from said mouth, which is remote from the cartridge lid, towards the carriage lid/ the lid manifold's body along the tube socket. The length of the notch, however, is small enough that there may still be an air tight connection between the tube socket and the carriage manifold port, which has a shape of a flexible needle, with the latter one inserted into the first one. The technical function of the notch may become apparent when covering the lid manifold input ports with a removable tape, as will be explained in detail later with reference to Fig. 8. Lid manifold input ports having a form different to tube sockets may also be provided with a notch similar to the one described above.

[0028] Figs. 3a, 3b, and 3c show more detailed illustrations of an example cartridge lid 10 of the replaceable cartridge 6. Fig. 3a displays the cartridge lid 10 without any additional parts. The cartridge lid 10 comprises three lid apertures 11. Through the lid apertures 11 printing fluid can be supplied into the cartridge body 8. To supply printing fluid to the cartridge body 8 injection needles may be inserted through the lid apertures 11 into the internal space of the cartridge body 8. If areas for storing of printing fluid are included in the cartridge body 8, the printing fluid can be supplied to said areas. In case three separate areas for storing of printing fluid are included in the cartridge body 10, those areas may be centrally arranged below the three lid apertures 11. In this way printing fluid can easily be injected into each of the three separate areas through the corresponding lid apertures 11. [0029] In the example of Fig. 3b, the lid apertures 11 of cartridge lid 10 additionally comprise sealing septums 12. An injection needle may penetrate each of the sealing septums 12 to access the internal space of the cartridge body 8. Each sealing septum 12 creates a liquid and air tight sealing between the corresponding lid aperture 11 and the needle injected through the sealing septum 12.

[0030] Fig. 3c shows the cartridge lid 10 of Figs. 3a and 3b with an example lid manifold 14 mounted to it. The lid manifold 14 has three lid manifold input ports 16, which are in the shape of tube sockets. The lid manifold 14 is aligned on the cartridge lid 10 based on the mounting assistance protrusions 10a of the cartridge lid 10.

[0031] Even though Figs. 3a, 3b, and 3c illustrate a cartridge lid 10 having three lid apertures 11 with corresponding three sealing septums 12, in other examples cartridge lids may have one, two, four, five, six, or a different number of lid apertures with sealing septums. In some examples, the lid apertures are not provided with sealing septums at all.

[0032] For some example, replaceable cartridges the number of lid apertures and sealing septums corresponds to the number of lid manifold input ports, as well as to the number of storage areas for printing fluids in the cartridge body. In these examples, separate fluid connections from a particular carriage manifold port to a particular storage area may be established via a particular lid manifold input port and a particular lid aperture with sealing septum. To establish such separate fluid connections, a particular lid manifold input port may be fluidly connected to a particular lid aperture with sealing septum. An example of such separate fluid connections is discussed in the following with reference to Figs. 4a and 4b.

[0033] Figs. 4a and 4b illustrate cross-section views through the example removable cartridge 6 of Fig. 2b. The cross-section runs parallel to the x-axis indicated in Fig. 2b through the center of one of the lid manifold input ports 16, which are in the shape of tube sockets. Fig. 4a shows the removable cartridge 6 installed in the holding fixture 1 of the printer system and in fluid connection with the carriage manifold 2, i.e., the carriage manifold 2 is in the second pivot position, so that three flexible needles 3 of the carriage manifold 2 are inserted in/engaged with the three tube sockets 16 of the lid manifold 14. Fig. 4b shows a magnified section of Fig. 4a. It is to be understood that - due to the nature of cross-section illustrations - just one separate fluid connection from the carriage manifold 2 to the replaceable cartridge 6 appears in Figs. 4a and 4b. However, the structure of this below described fluid connection may be identical for the other two separate fluid connections not shown in Fig. 4a and 4b.

[0034] As shown in Fig. 4a, the flexible needle 3 of the carriage manifold 2 is engaged with the tube socket 16, which extends vertically away from the lid manifold's 14 body. This engagement is achieved by pivoting the carriage manifold 2 from its first pivot position to its second pivot position. During the pivoting movement the flexible needle 3 is inserted into the tube socket 16. Since the flexible needle 3 is located at a position distant to the pivot axis, at a pivoting radius considerable larger than the length of the flexible needle, the insertion movement of the flexible needle 3 at its way into the tube socket 16 runs along a substantially rectilinear engagement path. In this context, an engagement path is considered to be substantially rectilinear if the angle included between the flexible needle 3 and the tube socket 16 is less than 5° during the engagement, i.e., if the flexible needle 3 and the tube socket 16 are in direct, i.e., physical contact. In other examples, the included angle is less than 1 °. The substantially rectilinear engagement patch contributes to a liquid and air tight fluid connection between the flexible needle 3 and the tube socket 16.

[0035] The tube socket 16 itself is connected to a channel 17. The channel 17 extends inside the lid manifold's 14 body along an extension direction, which is substantially parallel to the outer surface of the cartridge lid 10. In this context, substantially parallel means that the channel 17 and the outer surface of the cartridge lid 10 include an angle of less than 5°. In some examples, the extension direction of the channel 17 is entirely parallel with respect to the outer surface of the cartridge lid 10. In some examples, the extension direction is also parallel with the outer surface of the lid manifold's 14 body. In some examples, where the lid manifold body is molded in one piece, the channel 17 inside the lid manifold body is formed by lateral drilling a stud hole into the lid manifold body in a direction parallel to the outer surface of the lid manifold 10, with the drilled stud hole subsequently sealed by an appropriate seal body.

[0036] At the end section not connected with the tube socket 16 the channel 17 is connected to the lid manifold output opening 18, which is formed as, and/or has a shape of, a lid manifold output needle. The lid manifold output needle 18 extends perpendicularly away from the channel 17 towards the cartridge lid 10. Directly underneath the end section of the channel 17 the lid aperture 11 with sealing septum 12 of the lid manifold 10 is located. The lid manifold output needle 18 thus extends directly towards the sealing septum 12. A lower section of the lid manifold output needle 18 penetrates/engages with the sealing septum 12 and provides a liquid and air tight fluid connection between the lid manifold output needle 18 and the sealing septum 12.

[0037] Through the lid aperture 11 with sealing septum 12 the internal space of the cartridge body 8 can be accessed. Centered directly below the lid aperture 11 with sealing septum 12, an area 19 for storing of printing fluid (such as a foam structure) is located inside the cartridge body 8. Thus, a fluid connection from the lid manifold output needle 18 to the area 19 for storing printing fluid is provided through the sealing septum 12.

[0038] Consequently, an individual fluid connection between the carriage manifold 2 and replaceable cartridge 6 is established. This individual fluid connection runs from the flexible needle 3 via the tube socket 16, the channel 17, the lid manifold output needle 18, and the sealing septum 12 of the lid aperture 11 to the area 19 for storing printing fluid, which is located inside the body 8 of the replaceable cartridge 6. [0039] As can be understood based on Figs. 4a and 4b, a general technical task of the lid manifold 14 is to enable the above-described fluid connection by removably connecting the flexible needle 3 of the carriage manifold 2 with the sealing septum 12 of the lid aperture 11. Thus, the lid manifold 14 may be looked upon as a kind of adapter between those two components bypassing the spatial offset between the flexible needle 3 and the sealing septum 12 with a fluid connection. The lid manifold 14 may act as said kind of adapter, as its lid manifold input port 16 and its lid manifold output opening 18 substantially have the same spatial offset with respect to each other as the flexible needle 3 and the sealing septum 12, if the carriage manifold 2 is in the second pivot position. In this context, the spatial offset is considered to be substantially the same if the directed spatial difference between the two mentioned spatial offsets is less than 5% of the absolute spatial offset. In some examples, the spatial difference between the two mentioned spatial offsets may be less than 1 %. In yet another example, the spatial offsets may be entirely the same.

[0040] In some examples, the lid manifold input port 16 has a spatial offset with respect to the lid manifold output opening 18, which has a component in a direction which is parallel to the outer surface of the cartridge lid 10.

[0041] Figs. 5a, 5b, 5c, and 5d refer to a further example replaceable cartridge 35 which can be used in connection with the printer system of Figs. 2a and 2b. Fig. 5a and 5b show the lid manifold 29 of said replaceable cartridge 35 in detail. In one example, the lid manifold 29 comprises three lid manifold input ports 30, which are in the form of tube sockets. The tube sockets 30 of the replaceable cartridge 35 are similar to the tube sockets 16 of the replaceable cartridge 6 shown in Fig. 2b. Details described with respect to the tube sockets 16 apply to the tube sockets 30 as well.

[0042] In one example, the lid manifold 29 comprises three channels 31a fluidly connected to the tube sockets 30. The channels have the same function as the channels 17 of replaceable cartridge 6 described with reference to Figs. 4a, 4b. However, while the channels 17 are completely embedded inside the bulk body of lid manifold 14, and thus form closed channels, the channels 31a of replaceable cartridge 35 are only sunk-in in the bottom outer surface of the body of the lid manifold 29, which is facing the cartridge lid 32 if the lid manifold 29 is mounted to the replaceable cartridge 35, and thus form open channels. In this context, the term sunk-in refers to channels which are not completely embedded inside the bulk body of a lid manifold 14. The open channels are closed by the upper outer surface of the cartridge lid 10, as can be seen in Fig 5d. The channels 31a laterally extend in a direction which is parallel to the outer surface of the body of the lid manifold 29. The lateral extension direction corresponds to the flow direction of liquids through the channel 31a.

[0043] The cartridge lid 32 mounted to the body 34 of the replaceable cartridge 35 is shown in Fig. 5c. In one example, the cartridge lid 32 is made of, or comprises, a plastic material. The cartridge lid comprises three lid apertures 33. The lid apertures 33 are similar to the lid apertures 11 of Fig. 3a. Details described with respect to the lid apertures 11 apply to the lid apertures 33 as well. One difference between the cartridge lid 10 of Figs. 3a, 3b, 3c and the cartridge lid 32 of Figs. 5c, 5d is that the lid apertures 33 of cartridge lid 32 do not comprise sealing septums. A liquid and air tight fluid connection to the body 34 of the replaceable cartridge is not established via sealing septums. Instead, the lid manifold 29 is mounted to the cartridge lid 32 by laser welding. Due to the laser welding the plastic of the cartridge lid 32 melts, thereby connecting the cartridge lid 32 and the lid manifold 29 along the welding path 33.

[0044] The welding path 33 is predefined on the cartridge lid 32 prior to the welding. The welding path 33 corresponds in its shape to the shape of the three channels 31a of the lid manifold 29. By arranging the lid manifold 29 on the cartridge lid 32 and connecting the lid manifold 29 and the cartridge lid by laser welding along the welding path 33, the half-open channels 31a of the lid manifold 29 are closed and liquid and air tight fluid connections along the channels 31 a are defined by the channels 31 a and the outer surface of the cartridge lid 32.

[0045] As each of the three fluid connections defined by the channels 31 a and the outer surface of the cartridge lid 32 encloses the corresponding lid aperture 33 in a liquid and air tight manner, no sealing septums are involved to establish a liquid and air tight fluid connection to the body 34 of the replaceable cartridge 35.

[0046] In some examples, the lid manifold 29 is made of, or comprises, a transparent plastic material. In some examples, the transparent plastic material may comprise a polyethylene terephthalate (PET) species. An example material may be clear PET. In some examples, laser welding is performed through the transparent lid manifold 29 in order to melt the plastic of the cartridge lid 32 along the welding path 33 and to join the cartridge lid 32 to the lid manifold 29.

[0047] Fig. 5d shows an example replaceable cartridge 35 with a cartridge lid

32, wherein a lid manifold 29 is mounted to the replaceable cartridge 35 by laser welding the lid manifold 29 to the cartridge lid 32 along the welding path

33. The replaceable cartridge 35 can be installed in the holding fixture 1 of the printer system of Figs. 1a and 1 b.

[0048] Now referring to Figs. 6a and 6b, parts of an example printer system are illustrated. The example printer system includes both the holding fixture 1 and the carriage manifold 2 already discussed with reference to Figs. 1. The two replaceable cartridges 5, 6 already discussed with reference to Figs. 2 to 4 are installed in the holding fixture 1. The replaceable cartridge 5 has one lid manifold input port 15 in the shape of a tube socket, wherein the replaceable cartridge 6 has three lid manifold input ports 16 in the shape of tube sockets. The tube sockets 15, 16 of the two replaceable cartridges 5, 6 are positioned on the corresponding lid manifolds 13, 14 in such a way that all tube sockets 15, 16 are aligned along a straight line which is parallel to the pivot axis 4 of the carriage manifold 2.

[0049] Fig. 6a shows the carriage manifold 2 of the example printer system in the first pivot position. In the first pivot position the carriage manifold 2 is fluidly disconnected from the replaceable cartridges 5, 6. This becomes apparent, as the flexible needles 3 of the carriage manifold 2 are not inserted into the tube sockets 15, 16 of the replaceable cartridges 5, 6. Rather, there is a displacement between the flexible needles 3 and the tube sockets 15, 16.

[0050] By rotating the carriage manifold along the pivot axis from its first pivot position towards its second pivot position the displacement is reduced to zero once the flexible needles 3 and the tube sockets 15, 16 contact each other. Upon further rotation the flexible needles 3 are inserted into the tube sockets 15, 16, wherein the insertion path runs along a substantially rectilinear path, as already discussed above. When the second pivot position is reached, the flexible needles 3 and the tube sockets 15, 16 are fully engaged and fluid connections between the carriage manifold 3 and the replaceable cartridges 5, 6 are established to supply printing fluid from the cartridge manifold 3 to the replaceable cartridges 5, 6.

[0051] Fig. 6b shows the carriage manifold 3 of the example printer system in the second pivot position, in which - as described above - fluid connections to the replaceable cartridges 5, 6 are established. In total, four separate fluid connections are established between the carriage manifold 2 and the replaceable cartridge 5, 6. Each of the separate fluid connections runs from a separate flexible needle 3 via a separate tube socket 15, 16, a separate lid channel 17, a separate lid manifold output opening 18 in the shape of a lid manifold output needle, and a separate sealing septum 12 of a lid aperture 11 to a separate area 19 for storing of printing fluid located in one of the replaceable cartridges 5, 6. Three separate areas 19 are located in the body of replaceable cartridge 6, wherein one area 19 is located inside the body of the replaceable cartridge 5.

[0052] In the following, examples of removable covering devices for replaceable cartridges are introduced with respect to Figs. 7 and 8. It is important to note that the removable covering devices are separate objects independent of the replaceable cartridges and printer systems described above. [0053] In an example, the removable covering device for a replaceable cartridge may be for a replaceable cartridge which comprises a lid manifold. The lid manifold may comprise a lid manifold input port. The removable covering device may comprise a cover to cover the lid manifold input port. Further, it may comprise a handling element.

[0054] In an example, the removable covering device may be a removable plug for a replaceable cartridge. The replaceable cartridge may comprise a lid manifold. The lid manifold may comprise a lid manifold input port. The lid manifold input port may be in the form of a tube socket. The removable plug may comprise a plug body to be inserted into the tube socket. The plug body may have air channels formed on its outside to allow the replaceable cartridge to vent while the plug body is inserted into the tube socket. Further, the removable plug may comprise a handling element to limit a maximal depth of insertion of the plug body into the tube socket and to allow for a removal of the plug body from the tube socket. The handling element may be connected to the plug body and protrudes from the plug body.

[0055] In an example, the removable plug may comprise a number of plug bodies. The number of plug bodies may correspond to a number tube sockets of a replaceable cartridge. Each plug body may be connected to the handling element to allow the number of plug bodies to be inserted into the corresponding number of tube sockets.

[0056] In another example, the removable covering device may be a removable tape for a replaceable cartridge. The replaceable cartridge may comprise a cartridge lid. Further, it may comprise a lid manifold mounted to the cartridge lid. The lid manifold may comprise a number of lid manifold input ports in the form of tube sockets. Each tube socket may comprise a notch. The removable tape may comprise a tape body to cover the mouths of the tube sockets which are remote from the cartridge lid with the notches of the tube sockets remaining uncovered to allow the replaceable cartridge to vent air while the tape body is covering the tube sockets. Further, the removable tape may comprise a handling element to remove the tape body from the tube socket. The handling element may be connected to the tape body and may protrude from the tape body.

[0057] Figs. 7a to 7d illustrate example removable plugs 20, 23 for lid manifold input ports 5, 16 of replaceable cartridges 5, 6, which are in the shape of tube sockets. The removable plugs 20, 23 are to be inserted into the tube sockets

15, 16 by inserting the bodies 21 , 24 of the removable plugs 20, 23 into the tube sockets 15, 16 through the mouths of the tube sockets 15, 16. A handling element 22, 25 connected to the removable plugs 20, 23 is not to be be inserted into the tube sockets 15, 16. Rather, the handling element 22, 25 may limit a maximal depth of insertion of the plug bodies 21 , 24 into the tube sockets 15,

16. When inserted into the tube sockets 5, 16, the removable plugs 20, 23 may protect the tube sockets 15, 16 from any outside contamination, while still allowing the replaceable cartridge 5, 6 to vent through the tube sockets 5, 16.

[0058] Fig. 7a is a side view of a first example removable plug 20 removed from tube socket 15, 16 showing both the plug body 21 and its handling element 22. The plug body 21 is substantially of cylindrical shape and extends along the body axis 21a shown in Fig. 7a. In this context, substantially cylindrical shape means that the basic shape of the plug body 21 is cylindrical, while details of the plug body 21 , e.g., its air channels 21b, may deviate from the cylindrical shape. The basic shape of the plug body 21 is rotationally symmetric with respect to the body axis 2a. In other examples, the plug body may have a different shape. In some examples, the outer form of the plug body is complementary to the inner form of the tube socket, in which the plug body of the removable plug is to be inserted.

[0059] The plug body 21 has air channels 21b formed on its outside. The air channels 21b allow the replaceable cartridge 5, 6 to vent, i.e., to allow air from inside the body 7, 8 of the replaceable cartridge 5, 6 to leave the replaceable cartridge 5, 6 via the tube sockets 15, 16, even if the replaceable plug 20 is inserted into the tube socket 15, 16. In some examples, the air channels 21b of the removable plug 20 have the form of a labyrinth seal as shown in Fig. 7a. In other examples, the air channels are differently formed, allowing air to pass but prevent dust particle and the like to pass while the removable plug 20 is inserted into the tube socket15, 16.

[0060] The handling element 22 is connected to the one end of the plug body 21 that is not to be inserted into the tube socket 15, 16. The handling element 22 has a strap like form with a grip area projecting from the plug body 21 in a direction substantially perpendicular to the body axis 21a. In this context, substantially perpendicular means that the grip area of the handling element 222 and the axis 21a of the plug body 21 include an angle between 85°-95°. In some examples, the included angle is entirely perpendicular, i.e., 90°. Due to the projecting grip area, the handling element 22 cannot be inserted into the tube socket 15, 16 and thus limits the maximal depth of insertion of the plug body 21 into the tube socket 5, 16.

[0061] The removable plug 20 inserted into a tube socket 15, 16 of a replaceable cartridge 5, 6 can be removed from the tube socket 15, 16 by gripping the grip area of the handling element 22 and pulling the latter one away from the replaceable cartridge 5, 6 in a direction which has a component parallel to the body axis 21a. By pulling the handling element 22 in said direction, the plug body 21 can be removed from the tube socket 15, 16, and thereby the entire removable plug 20 is removed from the tube socket 5, 16.

[0062] Fig. 7b shows the replaceable cartridge 5 of Fig. 2a with the removable plug 20 inserted into its tube socket 15. Fig. 7c displays a cross-section view of Fig. 7b. The cross-section runs parallel to the x-axis indicated in Fig. 7b through the center the tube socket 15. As shown in Fig. 7c, a continuous air connection from the channel 17 of the lid manifold 13 to the outside of the removable cartridge 5 exists via the tube socket 15, even with the removable plug 20 inserted into the tube socket 15. The continuous air connection runs along a venting channel formed between the inside wall of the tube socket 15 and the air channels 21b formed on the outside of the plug body 21. [0063] Fig. 7d illustrates a second example removable plug 23 for insertion into three tube sockets 16 at a time. The removable plug 23 has three plug bodies 24 connected to a single handling element 25. The removable plug 23 is to be inserted into a lid manifold having at least three tube sockets 16, such as the lid manifold 14 of the replaceable cartridge 6 shown in Fig. 7d just underneath the removable plug 23.

[0064] When the removable plug 23 is inserted into the lid manifold's tube sockets 16, all three plug bodies 24 are simultaneously inserted in the corresponding tube sockets 16. The details of each of the plug bodies 24 are identical to those of the plug body 21 of the removable plug 20 described above with regard to Figs. 7a, 7b, and 7c.

[0065] Further, all details described with respect to the first example removable plug 20 are also present in the second example removable plug 23. The main difference between the two example removable plugs 20, 23 is the number of plug bodies 21 , 24 connected to the respective handling element 22, 25. Due to the different number of plug bodies 21 , 24, the sizes of removable plugs 20, 23 are different accordingly.

[0066] While the two example removable plugs 20, 23 both have gripping areas of the fixed handling elements 22, 25 projecting perpendicularly away from the plug bodies 21 , 24, other example removable plugs may have gripping elements in the form of straps, studs, or the like, for gripping and pulling the handling element to remove the inserted removable plugs from the tube sockets.

[0067] Now referring to Fig. 8, an example removable tape 26 for a number of lid manifold input ports 16 being in the shape of tube sockets of a replaceable cartridge 6 is shown. The removable tape 26 can be used to cover the mouths of the tube sockets 15, which are located remotely from the cartridge lid 0. The task of the removable tape 26 is identical to that of the removable plugs 20, 23 already described with reference to Figs 7. The removable tape 26 may protect the tube sockets 16 from outside contaminations while still enabling the replaceable cartridge 6 to vent air. However, the removable tape 26 may be mainly used for simultaneously covering a number of tube sockets 16, while the removable plug 20 can be used to cover just a single tube socket 5.

[0068] Removable tape 26 has a tape body 27 and a handling element 28. The tape body 27 contains, and in one example even consists of, a planar tape formed in a way, and/ or having a shape, to fit onto the number of tube sockets 16 to be covered by the removable tape. The removable tape 26 of Fig. 8 is to cover three tube sockets 16, which are positioned along a straight line on the lid manifold 14. Thus, the main axis of the tape body 27 extends along the straight line defined by the tube sockets 6, wherein the width of the tape body 27 corresponds to the mouth widths of the tube sockets 6.

[0069] In some examples, the tape body 27 has at least one mounting assistance protrusions 27a, which extend from the tape body perpendicularly towards the replaceable cartridge 6 if the replaceable tape 26 is about to be mounted, i.e., if it is positioned close to the tube sockets 16 with the tape body 27 facing the mouths of the tube sockets 16. The mounting assistance protrusions 27a allow an easy and precise positioning of the tape body 27 on the tube sockets 16 to be covered by aligning the mounting assistance protrusions 27 with the tube sockets 16.

[0070] The removable tape 26 is formed such that - if mounted to the replaceable cartridge 6 - it does not cover the notches 16a, which extend from the mouths of the tube sockets 16 towards the cartridge lid 10. Thus, the replaceable cartridge 6 may be still able to vent air via the notches 16a, even if the removable tape 26 covers and protects the tube sockets 16.

[0071] The handling element 28 of the removable tape 26 may be used for easy removal of the removable tape 26 from the tube sockets 16. The handling element 28 is connected to the tape body 27 and projects from the tape body 27 in an in-plane direction with respect to the tape body 27. In some examples of removable tapes 26, the handling element 28 is part of the tape body 27. The removable tape 26 covering the tube sockets 16 may be removed from the tube sockets 16 by pulling the handling element 28 of the removable tape 26 in a direction, which has a component away from the replaceable cartridge 6.

[0072] While the example removable tape 26 has the above-described fixed handling elements 28 projecting away from the tape body 27 in an in-plane direction, other example removable tapes may have handling elements in the form of straps, studs or the like for gripping and pulling the handling element to remove the installed removable tapes from the tube sockets.

[0073] While several examples have been described in detail, it is to be understood that the disclosed examples may be modified. Therefore, the foregoing description is to be considered non-limiting.