EP0878307B1 - Mechanische und elektrische Kodierungsvorrichtung für austauschbare Tintenpatrone - Google Patents

Mechanische und elektrische Kodierungsvorrichtung für austauschbare Tintenpatrone Download PDF

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Publication number
EP0878307B1
EP0878307B1 EP19980303549 EP98303549A EP0878307B1 EP 0878307 B1 EP0878307 B1 EP 0878307B1 EP 19980303549 EP19980303549 EP 19980303549 EP 98303549 A EP98303549 A EP 98303549A EP 0878307 B1 EP0878307 B1 EP 0878307B1
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EP
European Patent Office
Prior art keywords
ink
cartridge
receptacle
printer
class
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
EP19980303549
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English (en)
French (fr)
Other versions
EP0878307A3 (de
EP0878307A2 (de
Inventor
Winthrop D. Childers
Michael L. Bullock
John Anthony Underwood
Susan Marie Hmelar
David O. Merrill
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HP Inc
Original Assignee
Hewlett Packard Co
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
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Publication of EP0878307A2 publication Critical patent/EP0878307A2/de
Publication of EP0878307A3 publication Critical patent/EP0878307A3/de
Application granted granted Critical
Publication of EP0878307B1 publication Critical patent/EP0878307B1/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
    • B41J2/17543—Cartridge presence detection or type identification
    • B41J2/1755—Cartridge presence detection or type identification mechanically
    • 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
    • B41J2/17543—Cartridge presence detection or type identification
    • B41J2/17546—Cartridge presence detection or type identification electronically

Definitions

  • This invention relates to inkjet printers and the like and, more particularly, to a mechanical and electrical keying system which assures that an inkjet printer will only operate when a replaceable ink cartridge has been inserted that contains ink which is compatible with the printer.
  • replaceable inkjet printheads and ink cartridges incorporate a parameter memory for storage of operating parameters that are used to control print operations.
  • U.S. Patent 5,138,344 to Ujita stores information on a replaceable ink cartridge, which information relates to control parameters for the printer.
  • U.S. Patent 5,365,312 to Hillmann et al. describes the use of a memory device integral with an ink reservoir for storage of ink consumption data.
  • European Patent EP 0 720 916 describes an ink reservoir which includes a memory for storage of data regarding the identity of the ink supply and its fill level.
  • EP0789322 which falls under Article 54(3) EPC and is thus only relevant to the question of novelty, discloses a printer/copier apparatus adapted to receive a replacement ink cartridge.
  • the apparatus includes a receptacle with a first connector that is coupled to a processor which controls operation of the apparatus.
  • the cartridge includes a second connector which mates with the first connector and a serial access memory. Data transfers are enabled both to and from the memory, which contains data such as cartridge usage data.
  • the ink is highly incompatible (e.g., creates a precipitate when combined with a previously used ink), is a wrong color, manifests a viscosity which will plug the orifices of a print head, etc.., such a coupling can result in severe printer damage.
  • the present invention provides, as recited in the appendent claims, a printing system comprising a replaceable ink cartridge in combination with an inkjet printer.
  • Fig. 1 is a schematic representation of a printing system, showing an ink cartridge of the present invention which forms a fluid interconnect and an electrical interconnect with the printing system.
  • Fig. 1a is a schematic representation of certain parameters stored in a memory mounted on the ink cartridge of the present invention
  • Fig. 2 is a perspective view of an inkjet printer, with cover removed, which incorporates the ink cartridge of the present invention.
  • Fig. 3 is an ink supply receptacle of the type used in the printer of Fig. 2, shown broken away, with an ink cartridge positioned for insertion thereinto.
  • Fig. 4 depicts a simplified sectional view, partially broken away, taken across line A-A' of Fig. 3 with the ink cartridge installed in an ink cartridge receptacle of Fig.3.
  • Fig. 5 illustrates a logic flow diagram of the effect of the mechanical and electronic keying of the invention on a receiving inkjet printer.
  • Fig. 1 schematically depicts an inkjet printer 10 that includes an ink cartridge 12 which incorporates the invention.
  • Inkjet printer 10 further includes an ink cartridge receiving station 14 which comprises a plurality of cartridge-receiving receptacles 15.
  • An inkjet printhead 16 and a print controller 18 are also included with an inkjet printer 10. Printing is accomplished by printer 10 causing ejection of ink from printhead 16 under control of print controller 18.
  • Printhead 16 is connected to controller 18 by an electrical link 19. Ink is provided to printhead 16 by way of fluid conduit 21 which fluidically connects to printhead 16 to ink cartridge receiving station 14.
  • Ink container 12 includes a fluidic coupler 20 which is in fluid communication with fluid in ink reservoir 22.
  • Ink cartridge 12 further includes a plurality of electrical contacts 24 which are electrically connected to a memory 26.
  • Fluidic coupler 20 and electrical contacts 24 allow ink cartridge 12 to reliably interconnect with a fluid inlet coupler 28 and electrical contacts 30, respectively, associated with receptacle 15.
  • Receptacle 15 enables ink to be transferred from ink reservoir 22 to printhead 16, via fluid conduit 21.
  • receptacle 15 allows the transfer of information between memory 26 and print controller 18 via an electrical link 32.
  • Fig. 2 depicts a perspective view of inkjet printer 10, with its cover removed, containing plural ink cartridges 12.
  • Printer 10 includes a tray 40 for holding a paper supply.
  • a sheet of paper from tray 40 is fed into printer 10, using a sheet feeder (not shown).
  • paper sheets pass through a print zone 42 whereupon a scanning carriage 44, containing one or more printheads 16, is scanned across the sheet for printing a swath of ink thereon.
  • the sheet of paper is stepped through the print zone 42 as the scanning carriage 44 prints a series of swaths of ink to form images thereon.
  • the sheet is positioned into an output tray 46 and the process repeats.
  • Scanning carriage 44 moves through print zone 42 on a scanning mechanism which includes a slide rod 48.
  • a positioning means such as a coded strip (not shown), is used in conjunction with a photo detector in scanning carriage 44 for precisely positioning scanning carriage 44.
  • a stepper motor (not shown), connected to scanning carriage 44 via a drive belt and pulley arrangement, is used for transporting scanning carriage 44 across print zone 42.
  • Scanning carriage 44 in Fig. 2 is shown positioned at a nonprinting position, disposed adjacent print zone 42.
  • the nonprinting position is known as a "service station” which maintains printhead 16 to assure optimum print quality over time.
  • Each of printheads 16 is coupled by a cable (not shown) to print controller 18 that, in turn, controls the print actions thereof.
  • the present invention relates to apparatus for enabling ink container 12 to be received within a receptacle 15 and to operate with printer 10 only if the ink contained within reservoir 22 is of a compatible type to that utilized by printer 10.
  • a combination of mechanical and electrical keying is used to accomplish the invention.
  • further description of the structure of ink container 21 and receptacle 15 will be considered.
  • Ink cartridge 12 is referred to as an off-axis ink supply because it is spaced from a scan axis along which scanning carriage 44 moves.
  • Ink cartridge 12 is properly inserted and latched into place in a receptacle 15, electrical, mechanical and fluidic interfacing is accomplished with printer 10.
  • Ink passes through the fluid interface in receptacle 15, through fluid conduit 21 (e.g., tubing which fluidically connects ink containers 54, 56, 58 and 60) to corresponding printheads 16 on print scanning carriage 44.
  • fluid conduit 21 e.g., tubing which fluidically connects ink containers 54, 56, 58 and 60
  • Ink cartridge 12 contains a supply of ink which is either (i) from a first class of inks that are compatible with the receptacle into which ink cartridge 12 is to be inserted or (ii) from a second class of inks that are incompatible.
  • the first class of inks are those which, if brought into contact with a fluidic connector in the receptacle will not damage printer 10.
  • the second class of inks are those which, if allowed into contact with the fluid connector will cause severe damage.
  • Such inks may be of the type which precipitate upon mixing with a previous ink connected to the fluidic connector, have a different colorant, a different viscosity, etc.. For instance, it is critical to prevent mixing of black and color inks in this system.
  • ink cartridge 12 is depicted, positioned for insertion into a receptacle 15 within ink cartridge receiving station 14.
  • Each cartridge 12 includes an aligning/guide feature 62 and a latch feature 64 which provide both alignment, latching and keying functions.
  • the aligning/guide features 62 are preferably positioned on opposite sides of ink cartridge 12.
  • Corresponding aligning feature 66 are disposed at opposite ends of each receptacle 15. The use of aligning/guide 62 on opposite ends of cartridge 14 eliminates any need for partition walls between cartridges 12 during insertion.
  • Ink cartridge 12 has an elongate cross section perpendicular to the direction of its insertion into receptacle 15.
  • Aligning features 62 are positioned at opposite ends, with the elongate shape of the cartridge maximizing the distance between the aligning features. Placing the features at these locations minimizes the angular variation between the ink cartridge and the receptacle during insertion, improves alignment of fluid outlet 20 to fluid inlet 28 and improves alignment of connector 24 to connector 30.
  • the narrow ends of ink cartridge 12 allow only a minimal number of mechanical keying combinations. Cartridge 12 needs to be kept narrow to minimize the space occupied by supply station 14. This limitation is resolved with an electronic keying system that enhances the number of keying combinations (to be discussed below).
  • Aligning/guide features 62 provide a keying function to insure that only a cartridge 12, containing ink of the class which will not create damage to a fluidic coupler 28, may be inserted into a receptacle 15. Such class of inks may not all be usable within printer 10, but will not damage the fluidic intercoupling means used to couple cartridge 12 into printer 10. Should a cartridge 12 include ink that will damage printer 10, aligning/guide features 62 prevent any insertion of a cartridge 12 into a receptacle 15.
  • a latching feature 68 engages a corresponding latching feature 64 on ink cartridge 12 to latch ink cartridge 12 into a receptacle 15.
  • fluid coupler 28, associated with receptacle 15 engages the corresponding fluidic coupler 20 on ink cartridge 12 to allow a fluid flow into printer 10.
  • Insertion of ink cartridge 12 into receptacle 15 also forms an electrical interconnect between the cartridge 12 and receptacle 14. More specifically, electrical contacts 24 associated with cartridge 12 engage corresponding electrical contacts 30 associated with receptacle 15 to allow information to be transferred between print controller 18 and memory 26.
  • Fig. 4 depicts a sectional view of ink cartridge 12 taken across line A-A in Fig. 3.
  • Fig. 4 illustrates the interaction between aligning/guide features 62 on ink cartridge 12 and keying features 66 on receptacle 15.
  • Keying features 66 are disposed on a first side 70 and a second side 72 of receptacle 15.
  • First and second sides 70 and 72 are positioned at opposite ends of receptacle 15 and aligning/guide features 62 are disposed at opposite ends of cartridge 12.
  • projections 74 are variously positioned within keying features 66 to enable reception of a cartridge 12 which incorporates a mating physical keying feature. Accordingly, unless a cartridge 12 includes such a mating physical feature, it is prevented from insertion into a receptacle 15, thereby preventing any coupling between fluidic couplers 20 and 28.
  • a schematic view of memory 26 illustrates a plurality of data segments stored therein which contain parameters for control of printer 10.
  • One such parameter 90 enables an identity of ink contained within reservoir 22 to be determined by print controller 18. It is preferred that the parameter be a model number assigned to cartridge 12 by the manufacture. At least a portion of that model number will then include a value which unambiguously identifies the specific ink within the reservoir 22.
  • print controller 18 is enabled to read out the model number from memory 26 and to identify the specific ink type within reservoir 22.
  • controller 18 determines, by analysis of ink identity parameter 90, the specific ink type in cartridge 12. If the ink type is compatible with printer 10, controller 18 enables further use of cartridge 12. If the ink is determined to be not a compatible type, controller 18 issues a signal which causes display of a message to a user indicating, at the least, a warning that the ink is incompatible with further operations of printer 10.
  • the electronic keying feature may also provide a warning that an ink container, for instance, contains pressurized ink (which may cause long term printer damage) rather than ink at ambient pressure which the printer is designed to accept.
  • Fig. 5 illustrates a logic flow diagram of the effect of the mechanical and electronic keying on a receiving inkjet printer.
  • the ink cartridge container may contain ink from the above-mentioned first class of inks, i.e., inks that do not have severe incompatibility problems, or the second class of inks, i.e., inks which exhibit serious incompatability with those to be used on the printer, e.g., the colorant (cyan, magenta, yellow, black, red, etc.) is not the same as is to be received into a receptacle. If the cartridge contains ink of the second class, the mechanical keying prevents its insertion into a receptacle.
  • the first class of inks i.e., inks that do not have severe incompatibility problems
  • the second class of inks i.e., inks which exhibit serious incompatability with those to be used on the printer, e.g., the colorant (
  • the mechanical keying enables insertion of the cartridge into the receptacle. Then the system reads a model number from the cartridge memory and determines if the correct first class of ink is being installed. Thus, small differences in ink composition or differences in the internal construction of the ink cartridge would determine the correct first class. If not correct, the system blocks printing; otherwise, the system begins printing. An optional system behavior would be to allow the user to override the blocking of use of the ink cartridge if the ink will not do any long term damage to the printing system.
  • printer 18 can also disable further actions of printer 10 until cartridge 12 is changed.
  • the user message is preferably displayed via a connected host processor that includes a display terminal.
  • a cartridge 12 will be received into a receptacle 15 only if it contains an ink which falls into a class of inks that will not damage printer 10 as a result of an initial installation.
  • controller 18 Once received into a receptacle 15, a determination of the ink type is made by controller 18 which allows further use of ink from cartridge 12 only if the ink is fully compatible with printer 10. Otherwise, further use of cartridge 12 is inhibited.
  • the combined mechanical/electrical keying enables a wide range of inks to be discriminated by printer 10 and avoids the need for complex mechanical keying systems.

Claims (8)

  1. Ein Drucksystem, das eine austauschbare Tintenkassette (12) in Kombination mit einem Tintenstrahldrucker (10) zum Empfangen einer solchen Kassette (12) in einer Aufnahme (14) umfaßt, wobei die Kassette (12) folgende Merkmale aufweist:
    ein Gehäuse, das einen fluidischen Koppler (20), ein Reservoir (22), das mit dem fluidischen Koppler (20) zum Halten einer Tinte verbunden ist, und einen elektrischen Verbinder (24) umfaßt;
    einen Speicher (26), der mit dem elektrischen Verbinder (24) gekoppelt ist, zum Speichern eines Identitätsparameters, aus dem eine Identität einer Tinte, die in dem Reservoir (22) gespeichert ist, identifiziert werden kann; und
    Schlüsseleinrichtungen (62, 64), die an einem Abschnitt des Gehäuses positioniert sind, wobei ein erfolgreiches Einbringen des Gehäuses in die Aufnahme (14) anzeigt, daß ein Tintentyp in dem Reservoir (22) innerhalb einer ersten Klasse von kompatiblen Tintentypen ist, jedoch nicht, daß er mit dem Drucker (10) verwendbar ist;
    wobei das Druckersystem folgende Merkmale aufweist:
    die Aufnahme (14), die positioniert ist, um die Tintenkassette (12) zu empfangen, wobei die Aufnahme (14) sowohl eine fluidische Kopplereinrichtung (28) als auch eine elektrische Verbindungseinrichtung (30) umfaßt, wobei die Aufnahme (14) ferner ein mechanisches Schlüsselmerkmal (66) zum ausschließlichen Aufnehmen von Tintenkassetten (12), die die erste Klasse von kompatiblen Tintentypen enthalten, und zum Auswerfen von Tintenkassetten (12), die eine zweite Klasse von inkompatiblen Tintentypen enthalten, umfaßt; und
    die Prozessoreinrichtung (18) zum Lesen des Identitätsparameters aus dem Speicher (26) über den elektrischen Verbinder (24) nach erfolgreichem Einbringen des Gehäuses in die Aufnahme (14) und zum Bestimmen anhand des Identitätsparameters, ob Tinte in dem Reservoir (22) eine Tinte ist, die mit dem Drucker (10) verwendet werden kann, und nur wenn die Tinte in dem Drucker (10) verwendet werden kann, die volle Verwendung der Kassette (12) ermöglicht.
  2. Das Drucksystem gemäß Anspruch 1, bei dem die austauschbare Tintenkassetten-Schlüsseleinrichtung (62, 64) eine physische Form aufweist, die so gebildet ist, daß nach versuchtem Einbringen des führenden Abschnitts der Tintenkassette (12) in die Aufnahme (14) das Einbringen nur vollzogen werden kann, wenn die Tinte in dem Reservoir (22) der Kassette (12) innerhalb der ersten Klasse der kompatiblen Tintentypen ist.
  3. Das Drucksystem gemäß Anspruch 1, bei dem die austauschbare Tintenkassetten-Schlüsseleinrichtung (62, 64) eine physische Form aufweist, die so gebildet ist, daß nach versuchtem Einbringen des führenden Abschnitts der Tintenkassette (12) in die Aufnahme (14) das Einführen nicht vollzogen werden kann, wenn die Tinte in dem Reservoir (22) der Kassette (12) innerhalb der zweiten Klasse von inkompatiblen Tintentypen ist.
  4. Das Drucksystem gemäß einem der vorhergehenden Ansprüche, bei dem das Identitätsparameter der austauschbaren Tintenkassette eine Modellnummer ist, die der austauschbaren Tintenkassette (12) zugeteilt wurde.
  5. Das Drucksystem gemäß einem der vorhergehenden Ansprüche, bei dem das Identitätsparameter der Prozessoreinrichtung (18) ermöglicht, zu bestimmen, daß die Tinte in dem Drucker (10) nicht verwendet werden soll, wobei die Prozessoreinrichtung (18) ein Signal ausgibt, das zumindest bewirkt, daß dem Anwender eine Warnnachricht angezeigt wird.
  6. Das Drucksystem gemäß einem der vorhergehenden Ansprüche, bei dem das mechanische Schlüsselmerkmal (66) der Aufnahme eine physische Form aufweist, die so gebildet ist, daß nach einem versuchten Einbringen des führenden Abschnitts einer Tintenkassette (12) in die Aufnahme (14) die Schlüsseleinrichtung (62, 64) an dem führenden Abschnitt das Einbringen nur ermöglicht, wenn die Tinte in dem Reservoir (22) der Kassette (12) innerhalb der ersten Klasse der kompatiblen Tintentypen ist.
  7. Das Drucksystem gemäß einem der Ansprüche 1 bis 5, bei dem das mechanische Schlüsselmerkmal (66) der Aufnahme eine physische Form aufweist, die so gebildet ist, daß nach einem versuchten Einbringen eines führenden Abschnitts einer Tintenkassette (12) in die Aufnahme (14) die Schlüsseleinrichtung (62, 64) an dem führenden Abschnitt das Einführen verhindert, wenn die Tinte in dem Reservoir der Kassette (12) innerhalb der zweiten Klasse der inkompatiblen Tintentypen ist.
  8. Das Drucksystem gemäß einem der vorhergehenden Ansprüche, bei dem das Identitätsparameter bewirkt, daß die Prozessoreinrichtung (18) an den Anwender eine Warnung ausgibt, wenn die Tintenkassette (12) einen Tintentyp innerhalb der ersten Klasse enthält, aber das Identitätsparameter ein Merkmal bezeichnet, das nicht einem Merkmal, das durch das Drucksystem (10) erforderlich ist, angepaßt ist.
EP19980303549 1997-05-16 1998-05-06 Mechanische und elektrische Kodierungsvorrichtung für austauschbare Tintenpatrone Expired - Lifetime EP0878307B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85772297A 1997-05-16 1997-05-16
US857722 1997-05-16

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EP0878307A2 EP0878307A2 (de) 1998-11-18
EP0878307A3 EP0878307A3 (de) 1998-12-23
EP0878307B1 true EP0878307B1 (de) 2002-03-13

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ATE361838T1 (de) * 1989-08-05 2007-06-15 Canon Kk Tintenstrahlaufzeichnungsgerät und tintenkassette dafür
JP3222454B2 (ja) * 1990-02-02 2001-10-29 キヤノン株式会社 インクタンクカートリッジ
JP3192456B2 (ja) * 1992-01-20 2001-07-30 キヤノン株式会社 画像記録装置及び情報設定装置
US5519422A (en) * 1993-05-03 1996-05-21 Hewlett-Packard Company Method and device for preventing unintended use of print cartridges
US5699091A (en) * 1994-12-22 1997-12-16 Hewlett-Packard Company Replaceable part with integral memory for usage, calibration and other data
US5530531A (en) * 1995-03-15 1996-06-25 Hewlett-Packard Company Multiple cartridge keying apparatus

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Also Published As

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EP0878307A3 (de) 1998-12-23
DE69804148D1 (de) 2002-04-18
EP0878307A2 (de) 1998-11-18
JPH10323995A (ja) 1998-12-08
DE69804148T2 (de) 2003-01-09

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