EP0605183B1 - Haltevorrichtung für Kassetten an einem Tintenstrahldrucker und Vorrichtung zum Aufrechterhalten des Tintenniveaus in den Kassetten - Google Patents

Haltevorrichtung für Kassetten an einem Tintenstrahldrucker und Vorrichtung zum Aufrechterhalten des Tintenniveaus in den Kassetten Download PDF

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Publication number
EP0605183B1
EP0605183B1 EP93310396A EP93310396A EP0605183B1 EP 0605183 B1 EP0605183 B1 EP 0605183B1 EP 93310396 A EP93310396 A EP 93310396A EP 93310396 A EP93310396 A EP 93310396A EP 0605183 B1 EP0605183 B1 EP 0605183B1
Authority
EP
European Patent Office
Prior art keywords
cartridge
ink
chamber
cartridges
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93310396A
Other languages
English (en)
French (fr)
Other versions
EP0605183A3 (de
EP0605183A2 (de
Inventor
Alessandro Scardovi
Roberto Morandotti
Danilo Ceschin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olivetti Canon Industriale SpA
Original Assignee
Olivetti Canon Industriale SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olivetti Canon Industriale SpA filed Critical Olivetti Canon Industriale SpA
Publication of EP0605183A2 publication Critical patent/EP0605183A2/de
Publication of EP0605183A3 publication Critical patent/EP0605183A3/de
Application granted granted Critical
Publication of EP0605183B1 publication Critical patent/EP0605183B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/1752—Mounting within the printer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17506—Refilling of the cartridge
    • B41J2/17509—Whilst mounted in the printer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17513—Inner structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17533—Storage or packaging of ink cartridges

Definitions

  • This invention relates to a device for holding printer cartridges, especially cartridges for an ink-jet printer, and keeping them supplied with ink.
  • Ink-jet printers normally use a printing device which can be of two types.
  • the first type is formed by a printing head integral with the ink reservoir.
  • the head is separate from the reservoir and is fixed to a support integral with the carriage and is supplied with ink by means of a cartridge to be inserted into the head support.
  • the cartridge is automatically connected to the head so that it can be supplied with ink by means of various hydraulic connecting devices, as described, e.g. United States Patents in US-A-5 119 115 and US-A-3 967 286.
  • US-A-3 967 286 relates to a type of hydraulic connection using a capillary element to supply the reservoir of a printing head.
  • the first solution is quite inadvisable as it represents a costly waste of material and above all contributes to pollution of the environment by non-biodegradable materials, such as the resins generally used in the manufacture of cartridges of this kind.
  • an object of this invention is to provide a device for keeping printer cartridges supplied with ink and in which they can be kept for a considerable period of time so as to eliminate the abovementioned disadvantages.
  • Another important object of this invention is to provide a device which is separate from the printer and is adapted to supply one or more used cartridges with new ink, and/or to keep one or more cartridges full of ink intact and ready for use for an indefinite period of time.
  • a device for holding the cartridges from an ink-jet printer and keeping them supplied with ink comprises a container divided into two chambers.
  • the lower chamber is filled with ink and the upper chamber contains a seat for housing one or more cartridges.
  • the cartridges are automatically supplied with new ink drawn from the lower chamber by means of porous elements having a capillary structure, which are immersed in the ink and communicate with the cartridges by means of a hole in one of their walls.
  • the user of an ink-jet printer has one of these cartridge holding devices which he uses to replenish the ink in used cartridges. He can also keep filled cartridges in it until they are required for use. Thus he can have one cartridge re-filling while another one is in use in the printer, and will thus always have a spare ready for use.
  • the cartridges can be made with separate compartments for different colored inks, in which case the lower chamber is correspondingly divided and there is a separate porous element for each compartment.
  • the reference numeral 10 designates a container in the form of a substantially parallelepipedal box defined by rigid lateral walls 12 and a base wall 14 integral with the lateral walls 12.
  • a wall 18 at a certain distance from the base wall 14 is disposed in the lower part 16 of the container 10.
  • the wall 18 is also rigid and parallel to the wall 14.
  • the wall 18 is connected along its edge 19 to the lateral walls 12 at a predetermined distance from the base wall 14 so as to divide the inner space of the container 10 into a lower chamber 20 and an upper chamber 22.
  • the wall 18 is provided with a hole 24 through which an element 26 of porous material with high capillarity is passed.
  • the element 26 is anchored to the edge of the hole 24 by means of a rubber ring 28 and projects above the wall 18 via one end 27 towards the interior of the upper chamber 22, while in the lower chamber 20 it extends as far as the vicinity of the base wall 14.
  • the lower chamber 20 is filled with ink via the hole 24 before the capillary element 26 is fixed there and forms an ink container 25, as will be explained hereinafter, to supply ink to the used cartridges or integral heads.
  • the upper chamber 22 comprises a seat for accommodating the cartridge, formed by ribs 29, 30 projecting from the lateral walls 12 into the interior of the chamber 22 and serving as a guide and support for a cartridge 32 of a separate printing head which cannot be seen in the drawings.
  • the cartridge 32 ( Figures 1 and 2) comprises a reservoir 34 filled with a spongy absorbent material 35 impregnated with ink.
  • Figures 3 and 4 show the container 10 of Fig. 1, its internal structure being modified so that it is adapted to contain a cartridge or reservoir 40 integral with the appropriate printing head 42 (Fig. 4), also referred to as an integral printing head.
  • the reservoir 43 of the head 40 comprises a lower projecting part 46 to the exterior of which a multi-layer plate 48 carrying the nozzles for dispensing drops of ink is fixed.
  • the plate is manufactured by typical methods for integrated circuits and contains the expulsion chambers, each containing a heating element and the relevant electrical connections and the feed passages of the chambers, which cannot be seen in the drawings. These passages are connected between the said chambers and a duct 39 (Fig. 4) formed in a wall 49 of the projecting part 36.
  • Fig. 3 shows the empty container 10 of Fig. 4.
  • the wall 18' defining the ink reservoir 36 has staggered portions separated by a step 37 defining a recess 37' for accommodating the projection 46 of the head 40 of Fig. 4.
  • a pad 38 of soft absorbent material, e.g. felt or sponge, against which the plate 48 for the nozzles rests is disposed on the step 37. The pad serves to keep the nozzles clean and to remove any ink residue deposited on the outer face of the plate 48.
  • the ribs 29, 30 extend parallel to the base wall 14 along the lateral walls 12 of the container 10.
  • One base wall 33 of the cartridge 32 (Fig. 1) or of the reservoir 43 (Fig. 4) is provided with a through hole 54 through which the spongy material 35 passes towards the exterior.
  • the hole 54 is disposed in such a position that, when the cartridge 32 or the reservoir 43 of the head 40 is placed in the upper chamber 22, the projecting end 27 of the capillary element 26 penetrates into the hole 54 and comes into contact with the spongy material 35, thereby creating a hydraulic connection between the container 25 and the cartridge 32 or the reservoir 43 of the head 40.
  • the spongy material 35 is automatically supplied with ink by capillary action when the ink is used up after a period of use on a printer.
  • An integral printing head 40 (Fig. 4) or a cartridge 32 (Fig. 1) with no ink left can therefore be placed in the chamber 22 where it is automatically supplied with ink from the container 25 by means of the capillary element 26.
  • the head or the cartridge can be kept full of ink for an indefinite period of time and thus is always ready for use. There is no risk of drying or coagulation of the ink in the nozzles as the plate 48 for the nozzles is kept in a non-ventilated environment with high relative humidity. Moreover, as already stated, in order to guarantee the operation of the nozzles at any time, the pad 38 situated on the wall 37 (Fig. 3) in correspondence with the plate 48 is provided.
  • Figures 5 and 6 are vertical sections of a container 60 having two distinct compartments 62 and 63 separated by a partition wall 65.
  • the container 60 is adapted to contain a cartridge 64 full of ink of one color, e.g. black, in the compartment 62 and a cartridge 66 containing ink of three different colors in the compartment 63.
  • Each ink impregnates a corresponding spongy body 67a, 67b, 67c, 67d (Fig. 5).
  • the cartridge 66 is divided into three distinct chambers 66a, 66b, 66c separated by two walls 68.
  • the base wall 69 is provided with three holes, one for each chamber 66, through which three corresponding capillary elements 70, 71, 72 supply ink to the spongy bodies 67, each with the appropriate color of ink.
  • the three corresponding colored inks are contained in respective distinct compartments 75, 76, 77 disposed in the lower wall 78 of the container 60.
  • the cartridge 64 is supplied in an analogous manner by a capillary element 80 which is immersed in a reservoir 82 containing black ink.
  • the container 60 is closed at the top by a cover 84 which can be made in one piece or can be divided into two separate parts, one for each compartment 62 and 63.
  • Figs. 7 and 8 show a container 86 embodying the invention which is adapted to supply and hold two different integral heads 87 and 88.
  • the integral head 87 not shown in the drawing is similar to that 40 of Fig. 4 and is used for one single color, while the head 88 contains different inks in three compartments of the reservoir 89, these supplying three corresponding printing heads e.g. 88b fixed to the reservoir 89 (Fig. 8).
  • Fig. 9 shows a container 90 embodying the invention which is adapted to contain four distinct integral heads 91 for four inks of different colors.
  • the four heads 91 are identical to one another and to the head 40 of Fig. 4.
  • Fig. 10 is a vertical section along the line X-X of Fig. 9 of one of the integral heads 91.
  • the container 90 is divided into four independent compartments 92 separated from one another by means of partition walls 93. Ribs 94 and 96 similar to the analogous ribs 29 and 30 of Figures 1-4 are present in each compartment to support the integral heads 91.
  • the container 90 is closed at the top by a removable airtight cover 97.
  • the cover 97 can be divided into two or four separate parts so that two compartments or one single compartment can be uncovered at a time.
  • the container of Fig. 9 can be modified in a simple manner so that it can accommodate four cartridges identical to one another and similar to the cartridge 32 of Fig. 1 or the cartridge 64 of Fig. 6, each filled with ink of a different color, the part 99 being made flat relative to the wall 18, as in Fig. 1.
  • the containers of Figures 3, 8 and 10 can be adapted to accommodate a cartridge 105/support 106 group, as illustrated in Fig. 11.
  • the cartridge 105 is similar to the one designated 32 in Fig. 1, while the support 106 consists of a parallelepipedal container 108 open towards the top and comprising lateral walls 110 having internal dimensions such that it can accommodate the cartridge 105.
  • the container 108 On one base wall 112 and in the vicinity of a wall 110', the container 108 comprises a printing head 114 comprising a chamber 118 for the ink to supply a plate 120 carrying the printing nozzles 122.
  • the plate 120 is of the type already described hereinabove with reference to Fig. 4.
  • the chamber 118 communicates with the nozzles 122 via a passage 126.
  • the support 106 is provided with coupling elements 128 for removably mounting the cartridge/support group on the carriage (not shown) of a printer.
  • a multi-track flat cable 130 electrically connected via one end to the plate 120 is fixed to the outer face of the wall 110' in order to apply electric pulses to the plate 120 for the expulsion of drops of ink through the nozzles 122.
  • a capillary element 134 is fixed to the support 106 on the interior of the wall 112 in correspondence with the chamber 118.
  • the element 134 projects towards the interior of the container 108 so as to penetrate into a hole 136 in the cartridge 105 in order to come into contact with a spongy body 103 contained in the cartridge 105 and impregnated with ink.
  • the element 134 transfers the ink from the sponge 103 into the chamber 118 still full of ink by capillarity, and supplies the nozzles 122.
  • the cartridge 105 When the cartridge 105 is empty, it can be removed from the support 106 and can be introduced into a container 10 (Fig. 1) to be refilled with ink and to be kept full for subsequent use.
  • the entire cartridge/support group 105-106 can be removed from the carriage of the printer and can be introduced into a modified container based on that of Figures 3, 8, and 10, as already explained hereinabove.
  • the cartridge 105 mounted on the appropriate support 106 can be kept ready for use for an indefinite period of time.
  • Figs. 12-14 show another device embodying the invention, adapted to contain and hold two cartridges of reduced size referred to as lap-top cartridges.
  • a container 140 is divided internally by a partition wall 142 into a lower chamber 144 and an upper part 146.
  • the upper part 146 is in turn divided into two compartments 147 and 148 by a wall 150.
  • a cartridge 152 of reduced size compared, e.g. to the cartridge 32 of Fig. 1 is placed in the compartment 147.
  • the cartridge 152 rests on two supporting ribs 155, 156 disposed on the wall 142.
  • a capillary element 160 is fixed to the wall 142 and projects partially via one end 162 into the compartment 147 so as to contact, via a hole 153 formed in one wall of the cartridge 152, a spongy body 154 contained in its interior. In this manner, the ink contained in the lower chamber 144 supplies the cartridge 152 by capillary action via the element 160.
  • the compartment 148 is completely sealed off both with respect to the lower chamber 144 and with respect to the exterior, so that it can house a cartridge 152' (Fig. 13) inserted into a support 170 carrying an ink-jet printing head 172 of a type similar to the head 42, 46 described with reference to Fig. 4.
  • a cover 145 closes the upper opening of the container 140 in an airtight manner once a sealed cartridge 152 has been inserted into the compartment 147 and a cartridge 152' with the appropriate support 170 has been inserted into the compartment 148.
  • the support 170 comprises a chamber 174 for supplying ink to the head 172 which communicates hydraulically with the cartridge 152' by means of a porous capillary element 176 emerging from the chamber 174.
  • the capillary element 176 penetrates into the cartridge 152' through a hole 177 (Fig. 14) in order to contact the spongy body 154, which draws in the ink to supply the chamber 174.
  • the compartment 147 moreover communicates with the lower chamber 144 by means of a duct 158 provided at the hole 177 of the cartridge 152 (Fig, 14) in order to keep that portion of sponge 154 appearing through the hole 177 in a damp environment and to keep the pressure in the interior of the cartridge 152 constant.
  • the cartridge 152 is fixed firmly in its seat formed by the ribs 155, 156 by means of a leaf spring 163 fixed to the cover 145. Moreover, the cartridge 152 is pressed against the duct 158 by an elastic member 166 disposed between one lateral wall 141 and the cartridge 152 along the axis and on the opposite side with respect to the duct 158.

Claims (10)

  1. Vorrichtung zur Halterung von Patronen oder Vorratsbehältern für einen Tintenstrahldrucker und zum Aufrechterhalten ihrer Tintenversorgung, wobei die Vorrichtung aufweist: einen Behälter (10), der eine Öffnung (21) und eine Abdeckung (56) zum Verschließen dieser Öffnung umfaßt, Unterteilungseinrichtungen (18), die den Behälter im Innern in wenigstens eine erste Kammer (22), die durch die Öffnung zugänglich ist und Behältniseinrichtungen (29, 30) für das Aufnehmen einer Patrone aufweist, und in wenigstens eine zweite Kammer (20) zum Aufnehmen von Tinte für die Versorgung unterteilen, wobei die Patrone in der ersten Kammer angeordnet ist.
  2. Vorrichtung nach Anspruch 1, bei welcher die zweite Kammer (20) unterhalb der ersten Kammer (22) angeordnet ist und ein Kapillarelement (26) umfaßt, dessen eines Ende in die Tinte eintaucht und dessen entgegengesetztes Ende in die erste Kammer hineinragt und dafür angepaßt ist, in die Patrone eingeführt zu werden.
  3. Vorrichtung nach Anspruch 2, bei welcher die Unterteilungseinrichtung, welche die erste und zweite Kammer trennt, eine Wand (18) aufweist, durch die das Kapillarelement (26) hindurchgeht.
  4. Vorrichtung nach Anspruch 1, 2 oder 3, bei welcher die Behältniseinrichtungen für das Einpassen einer Patrone Einrichtungen (29, 30) für das Abstützen und Halten der Patrone in einer festgelegten Position in der ersten Kammer (22), wenn die Abdeckung (56) die Öffnung (21) verschließt, umfassen.
  5. Vorrichtung nach Anspruch 4, bei welcher die Einrichtungen für das Abstützen und Halten der Patrone Rippen (29, 30) aufweisen, die in das Innere der ersten Kammer (22) hineinragen, und ein elastisches Element (57), das an der Abdeckung (56) befestigt und dafür angepaßt ist, die Patrone (32) gegen die Rippen zu drücken.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, bei welcher die erste Kammer (22) eine Auswölbung (37') umfaßt, die in Richtung auf die zweite Kammer (20) hervorsteht und dafür angepaßt ist, den Druckkopf einer Patrone mit einem integrierten Druckkopf aufzunehmen.
  7. Vorrichtung nach Anspruch 6, bei welcher die Unterteilungseinrichtungen, welche die erste und die zweite Kammer unterteilen, eine durchgehende Wand (18') aufweist, wobei die Wand erste und zweite Bereiche umfaßt, die miteinander verbunden sind, wobei der zweite Bereich versetzt angeordnet ist, um die hervorstehende Auswölbung (37') zu bilden.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, bei welcher die erste Kammer eine erste Mehrzahl von Fächern (67a-67c) aufweist, die voneinander getrennt und dafür angepaßt sind, Patronen (66) für verschiedene farbige Tinten unterzubringen.
  9. Vorrichtung nach Anspruch 8, bei welcher die zweite Kammer eine zweite Mehrzahl von Fächern (75-77) umfaßt, die Tinten verschiedener Farben enthalten, um damit die entsprechenden Patronen, die in der ersten Mehrzahl von Fächern untergebracht sind, zu versorgen.
  10. Vorrichtung nach Anspruch 9, bei welcher jedes Fach der zweiten Mehrzahl ein Kapillarelement (70; 71; 72) aufweist, das dafür angepaßt ist, jede der Patronen hydraulisch mit einem entsprechenden Fach zu verbinden.
EP93310396A 1992-12-28 1993-12-21 Haltevorrichtung für Kassetten an einem Tintenstrahldrucker und Vorrichtung zum Aufrechterhalten des Tintenniveaus in den Kassetten Expired - Lifetime EP0605183B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO921045 1992-12-28
ITTO921045A IT1258135B (it) 1992-12-28 1992-12-28 Dispositivo per conservare e mantenere rifornite d'inchiostro le cartucce di una stampante a getto d'inchiostro.

Publications (3)

Publication Number Publication Date
EP0605183A2 EP0605183A2 (de) 1994-07-06
EP0605183A3 EP0605183A3 (de) 1994-08-17
EP0605183B1 true EP0605183B1 (de) 1997-06-04

Family

ID=11410949

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93310396A Expired - Lifetime EP0605183B1 (de) 1992-12-28 1993-12-21 Haltevorrichtung für Kassetten an einem Tintenstrahldrucker und Vorrichtung zum Aufrechterhalten des Tintenniveaus in den Kassetten

Country Status (4)

Country Link
EP (1) EP0605183B1 (de)
JP (1) JP3419524B2 (de)
DE (1) DE69311285T2 (de)
IT (1) IT1258135B (de)

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CN102371767B (zh) * 2010-08-12 2014-06-25 珠海纳思达企业管理有限公司 一种负压式墨盒填充装置、系统及填充方法
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JP7013180B2 (ja) 2017-09-12 2022-01-31 キヤノン株式会社 液体容器、および液体容器の製造方法
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DE69311285T2 (de) 1998-01-08
JP3419524B2 (ja) 2003-06-23
DE69311285D1 (de) 1997-07-10
EP0605183A3 (de) 1994-08-17
EP0605183A2 (de) 1994-07-06
IT1258135B (it) 1996-02-20
ITTO921045A0 (it) 1992-12-28
ITTO921045A1 (it) 1994-06-28
JPH071744A (ja) 1995-01-06

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