EP2962853B1 - Module de commande doté d'un circuit intégré électronique pour application sur une cartouche de consommable - Google Patents

Module de commande doté d'un circuit intégré électronique pour application sur une cartouche de consommable Download PDF

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Publication number
EP2962853B1
EP2962853B1 EP15163875.6A EP15163875A EP2962853B1 EP 2962853 B1 EP2962853 B1 EP 2962853B1 EP 15163875 A EP15163875 A EP 15163875A EP 2962853 B1 EP2962853 B1 EP 2962853B1
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EP
European Patent Office
Prior art keywords
control module
circuit
data
printer
memory
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.)
Active
Application number
EP15163875.6A
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German (de)
English (en)
Other versions
EP2962853A2 (fr
EP2962853A3 (fr
Inventor
Andreas Franke
Gerald Bank
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.)
Artech GmbH Design and Production in Plastic
Original Assignee
Artech GmbH Design and Production in Plastic
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Application filed by Artech GmbH Design and Production in Plastic filed Critical Artech GmbH Design and Production in Plastic
Publication of EP2962853A2 publication Critical patent/EP2962853A2/fr
Publication of EP2962853A3 publication Critical patent/EP2962853A3/fr
Application granted granted Critical
Publication of EP2962853B1 publication Critical patent/EP2962853B1/fr
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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
    • B41J2/17546—Cartridge presence detection or type identification electronically
    • 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

Definitions

  • a consumable cartridge for example an ink or toner cartridge for a printer with such a control module is also the subject of the invention.
  • Printers for example inkjet and laser printers, are known in the prior art in a large number of different embodiments.
  • Exchangeable disposable consumable containers so-called consumable cartridges, are usually used to supply consumables, for example ink or toner cartridges, which are referred to below as cartridges. These are used for operation in corresponding cartridge receiving devices in the printer. When a cartridge is empty, it is removed from the printer, discarded and replaced with a full cartridge, or refilled with consumables.
  • Cartridges are usually provided with an electronic control module which serves to authenticate the cartridge and contains a rewritable data memory for storing specific data.
  • the control module is connected to electrical contact elements, which are accessible from the outside Contact surfaces.
  • printer contact elements which are located in the cartridge receiving device of the printer.
  • the printer contact elements are connected internally to the control lines of the printer, via which the printer also transmits data signals in addition to the supply voltage in accordance with a serial data transmission protocol.
  • the printer can read data from the storage element of the ink cartridge, for example on the type, capacity, ink, toner, color etc., and write data in the memory, for example on the current remaining ink level.
  • a user can be informed about the current ink level of an ink cartridge at any time and, if necessary, be asked to replace an empty or soon used cartridge in good time.
  • control modules While simple designs of control modules in the form of memory modules were used at the beginning of the development, which essentially consisted of memory cells and a fixed input / output control logic, currently advanced developments are used in which more complex data operations are carried out and the data exchange with a Printer is made via specially adapted interfaces.
  • the essential electronic functions of such a complex control module are summarized for efficiency and cost reasons in an integrated circuit, a monolithic component which has digital function blocks formed on a semiconductor substrate and which communicate with one another via an internal processor bus (bus).
  • the essential function blocks include a processor core including program code memory (code memory), readable and / or rewritable memory areas and a serial bidirectional interface for data communication.
  • the circuit To connect the power supply and for data exchange with the printer, the circuit has contact elements (pins) that lead outwards and are connected to the contact elements of the control module.
  • control modules today The main purpose of the control modules today is to ensure that users of the printer only use the appropriate consumables, for example the original ink cartridges of the respective printer Bind printer manufacturer.
  • the semiconductor memory means are increasingly being equipped with complex logic circuits for authentication, which also have cryptographic data encryption devices. This makes it technically complex to provide compatible replacement ink cartridges, even if only the ink level is actually to be stored on the ink cartridges.
  • Such a control module is for example in the WO2009145775A1 described.
  • the invention is based on the motivation to provide a control module with the features mentioned above, which can flexibly carry out different authentication methods and can be adapted to a large number of different data transmission protocols and physically different interfaces.
  • the peculiarity of the invention consists in that a processor core that is particularly well suited for the specific application - namely cryptographically encrypted data exchange - is used, but is highly efficient, which is programmable over a wide range, i.e. freely configurable interface (interface) can communicate with a printer.
  • the cryptRISC processor core used according to the invention is basically a RISC (Reduced Instruction Set Computer) processor, i.e. a processor with a reduced instruction set, which enables a simple and inexpensive chip design and a high operating speed (clock frequency).
  • RISC Reduced Instruction Set Computer
  • This approach is further pursued in the cryptRISC design, the command set being expanded to include typical commands used in cryptographic processes (crypto commands).
  • a typical command set includes, for example, the following commands: permutation (bit-oriented, byte-oriented), multiplication / division, Galois field arithmetic (matrix multiplication, inverse multiplication), affine and inverse affine transformation, rotation, shifting (shifting), table operations (Table look-up: 4/8/32-bit substitution), arithmetic operations (ADD, SUB) and logical operations (XOR, OR, AND, NOT).
  • permutation bit-oriented, byte-oriented
  • multiplication / division Galois field arithmetic
  • matrix multiplication inverse multiplication
  • affine and inverse affine transformation rotation
  • shifting shifting
  • table operations Table look-up: 4/8/32-bit substitution
  • arithmetic operations ADD, SUB
  • logical operations XOR, OR, AND, NOT
  • a cryptRISC processor core can achieve a significantly higher processing speed than with a conventional processor. This is of particular importance for use in a control module for consumable cartridges, since in this special application the data transmission speed is generally so high that simple replacement solutions based on standard microcontrollers do not work.
  • cryptRISC processor cores can be flexibly programmed to process a wide variety of data transmission protocols and can also be implemented inexpensively as an ASIC (Application Specific Integrated Circuit).
  • ASIC Application Specific Integrated Circuit
  • the interface can be freely configured within wide limits by appropriate programming.
  • this affects the physical connections, such as the different number and assignment of the data and supply voltage lines in different printer types (see above).
  • the data processing can be adapted to a wide variety of data transmission protocols by appropriate programming, which are usually proprietary protocols specific to printer manufacturers.
  • contactless data transmission methods can also be implemented, for example optoelectronically by controlling light-emitting elements (LEDs or the like).
  • a control module according to the invention can be used for a large number of different cartridge and printer types from different printer manufacturers by appropriate programming and use of a contact plate with adapted contact geometry. This can significantly reduce both the development and manufacturing costs for compatible cartridges from independent third-party providers.
  • An oscillator (OSC) and a clock control (CLK) are expediently integrated to generate all system clocks. These determine the working speed of the processor core, as well as other function blocks through individual cycles.
  • a random number generator for generating true random numbers generator is preferably integrated. As a result, real random numbers required for cryptographic operations can be efficiently provided.
  • an encryption unit is integrated.
  • This is a circuit block in which algorithms for special cryptographic standard procedures are hardwired, for example for DES (data encryption standard) procedures, 3DES (triple DES), AES (advanced encryption standard) or SHA (secure hash algorithm). This enables the encryption methods to be used particularly efficiently.
  • a control module 1 according to the invention is shown schematically. It comprises an integrated circuit 2 according to the invention, which is shown as a block diagram and is connected to contact elements 3, ie conductive contact surfaces accessible from the outside (also referred to as pins, terminals or contact pads).
  • the aforementioned function blocks are connected to one another via an internal bus (processor bus) 4.
  • the supply voltage is applied to the circuit 2 via the contact elements (3) VDD and GND.
  • the function block SPU which in turn is connected to the interface I / O and the bus 4, is connected to the contact element (3) SCL, via which an external clock signal is fed in, and to the contact element SDA, which is used to input data signals from the printer and Output of data signals to the printer (bidirectional data communication).
  • the cryptRISC processor core can communicate with a printer via a freely configurable interface configuration. This allows flexible adaptation to a wide variety of printer models from different Manufacturers.
  • the cryptRISC processor core used and the specially adapted auxiliary modules (TRNG, CRY, etc.) ensure a high data processing speed, so that adaptation to different data transmission protocols is guaranteed, even if these require high data transmission rates or data processing speeds.
  • control module 1 Due to the particular adaptability of a control module 1 according to the invention, the function of a control module 100 of a first printer manufacturer, as shown in FIG Figure 3 is shown by way of example, can be reproduced, or also for a different control module 200 from another printer manufacturer, as shown in FIG Figure 4 is shown.
  • a special feature of the control module 200 is, for example, that it additionally has an optoelectronic element, namely a light-emitting diode (LED 201), which can be controlled by the circuit (2) according to the invention via an appropriately programmed control output GPIO.
  • LED 201 light-emitting diode
  • Fig.2 shows a practical embodiment of a control module 1 according to the invention.
  • the contact elements 3 are arranged on a printed circuit board 5 (circuit board PCB) in accordance with the contact geometry in a printer in which a consumable cartridge can be inserted.
  • FIG. 5 An example of a consumable cartridge is in Figure 5 an ink cartridge 300 is shown, which with a control module 1 according to Fig.2 Is provided.

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Control Or Security For Electrophotography (AREA)

Claims (8)

  1. Module de commande pour une cartouche de matériel consommable, comprenant un circuit électronique intégré (2) destiné à être installé sur une cartouche de matériel consommable (300), comprenant au moins les blocs fonctionnels suivants, reliés ensemble par le biais de lignes de bus de processeur (4) :
    * un cœur de processeur pourvu d'une mémoire de code programmable
    * une mémoire de données lisible et réinscriptible
    * une interface bidirectionnelle (SPU, I/O) série
    caractérisé en ce que
    * le cœur de processeur est réalisé sous la forme d'un cœur de processeur cryptRISC, qui possède une architecture de processeur RISC avec des instructions cryptographiques supplémentaires, et
    * l'interface bidirectionnelle (SPU, I/O) est configurée pour pouvoir être programmée librement concernant la connexion des éléments de contact (3), lesquels représentant les entrées et sorties physiques et étant conçus pour, lors de l'accueil de la cartouche de matériel consommable (300) dans une imprimante, entrer en contact avec des éléments de contact d'imprimante de l'imprimante, et le protocole de transmission de données, et
    * le module de commande (1) comporte une plaque de contact comprenant les éléments de contact (3),
    la mémoire de code et la mémoire de données étant réalisées sous la forme de mémoires de code, de configuration et de données non volatiles (NVRAM), la mémoire de données comportant une zone de configuration et une zone de données, et une programmation étant enregistrée dans la zone de configuration pour la configuration de l'interface bidirectionnelle (SPU, I/O) concernant la connexion des éléments de contact (3).
  2. Module de commande selon la revendication 1 ou 2, caractérisé en ce que le circuit (2) comporte un oscillateur (OSC) ainsi qu'une commande d'horloge (CLK) destinée à générer toutes les horloges du système.
  3. Module de commande selon la revendication 1 ou 2, caractérisé en ce que le circuit (2) comporte un générateur de nombre aléatoire (TRNG) destiné à générer des nombres aléatoires vrais.
  4. Module de commande selon l'une des revendications précédentes, caractérisé en ce que le circuit (2) comporte une unité de cryptage (CRY).
  5. Module de commande selon l'une des revendications précédentes, caractérisé en ce que le circuit (2) comporte un contrôleur de mémoire (MC).
  6. Module de commande selon l'une des revendications précédentes, caractérisé en ce que le circuit (2) comporte une unité d'accès à la mémoire (DMA) qui fonctionne indépendamment du cœur de processeur.
  7. Module de commande selon l'une des revendications précédentes, caractérisé en ce que le circuit (2) comporte un modulateur de largeur d'impulsions ou un générateur d'horloge (PWM).
  8. Cartouche de matériel consommable (300), caractérisée par un module de commande (1) selon la revendication 1.
EP15163875.6A 2013-08-14 2014-08-14 Module de commande doté d'un circuit intégré électronique pour application sur une cartouche de consommable Active EP2962853B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201320007283 DE202013007283U1 (de) 2013-08-14 2013-08-14 Integrierter elektronischer Schaltkreis für ein Steuermodul zur Anbringung auf einer Verbrauchsmaterialkartusche, Steuermodul und Verbrauchsmaterialkartusche für einen Drucker
EP14002837 2014-08-14

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP14002837 Division 2013-08-14 2014-08-14
EP14002837 Previously-Filed-Application 2013-08-14 2014-08-14

Publications (3)

Publication Number Publication Date
EP2962853A2 EP2962853A2 (fr) 2016-01-06
EP2962853A3 EP2962853A3 (fr) 2017-09-27
EP2962853B1 true EP2962853B1 (fr) 2020-02-19

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Application Number Title Priority Date Filing Date
EP15163875.6A Active EP2962853B1 (fr) 2013-08-14 2014-08-14 Module de commande doté d'un circuit intégré électronique pour application sur une cartouche de consommable

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Country Link
EP (1) EP2962853B1 (fr)
DE (2) DE202013007283U1 (fr)
ES (1) ES2791899T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106956516B (zh) * 2017-04-25 2018-06-08 杭州旗捷科技有限公司 一种序列号记忆可清除耗材芯片、耗材、系统及使用方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009145775A1 (fr) * 2008-05-29 2009-12-03 Hewlett-Packard Development Company, L.P. Composant d'imprimante remplaçable avec mémoire stockant un masque de cryptage d'étiquette
EP2719538A1 (fr) * 2009-05-15 2014-04-16 Seiko Epson Corporation Système de fourniture de materiau d'enregistrement, carte de circuit imprimé, structure, et cartouche d'encre pour dispositif de consommation de materiau d'enregistrement

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Publication number Priority date Publication date Assignee Title
US7330974B1 (en) * 1999-05-25 2008-02-12 Silverbrook Research Pty Ltd Method and system for delivery of a secure document
DE60034080T2 (de) * 1999-10-04 2007-12-06 Seiko Epson Corp. Tintenstrahlaufzeichnungsvorrichtung, Halbleitervorrichtung und Aufzeichnungskopfvorrichtung
JP4673143B2 (ja) 2005-06-23 2011-04-20 キヤノン株式会社 液体収納容器用のモジュール、液体収納容器、およびプリンタ
JP2009140104A (ja) * 2007-12-04 2009-06-25 Ricoh Co Ltd 画像形成装置
JP2011189730A (ja) 2010-02-22 2011-09-29 Seiko Epson Corp 記憶装置、基板、液体容器、ホスト装置及びシステム
JP2012084043A (ja) * 2010-10-14 2012-04-26 Hagiwara Solutions Co Ltd 暗号化記憶装置、情報機器、暗号化記憶装置のセキュリティ方法
EP2910379B1 (fr) 2011-12-22 2019-09-04 Brother Kogyo Kabushiki Kaisha Cartouche de liquide d'impression, appareil d'impression et utilisation de la cartouche de liquide d'impression

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009145775A1 (fr) * 2008-05-29 2009-12-03 Hewlett-Packard Development Company, L.P. Composant d'imprimante remplaçable avec mémoire stockant un masque de cryptage d'étiquette
EP2719538A1 (fr) * 2009-05-15 2014-04-16 Seiko Epson Corporation Système de fourniture de materiau d'enregistrement, carte de circuit imprimé, structure, et cartouche d'encre pour dispositif de consommation de materiau d'enregistrement

Also Published As

Publication number Publication date
EP2962853A2 (fr) 2016-01-06
ES2791899T3 (es) 2020-11-06
DE102014101162A1 (de) 2015-02-19
DE202013007283U1 (de) 2013-09-25
EP2962853A3 (fr) 2017-09-27

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