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EP0858621B1 - Dispositif de communication faisant partie d'une machine d'impression et de photocopie electrographiques - Google Patents

Dispositif de communication faisant partie d'une machine d'impression et de photocopie electrographiques Download PDF

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Publication number
EP0858621B1
EP0858621B1 EP96925648A EP96925648A EP0858621B1 EP 0858621 B1 EP0858621 B1 EP 0858621B1 EP 96925648 A EP96925648 A EP 96925648A EP 96925648 A EP96925648 A EP 96925648A EP 0858621 B1 EP0858621 B1 EP 0858621B1
Authority
EP
European Patent Office
Prior art keywords
data
functional
canbus
bus system
dpram
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
EP96925648A
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German (de)
English (en)
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EP0858621A1 (fr
Inventor
Franz Hintler
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.)
Canon Production Printing Germany GmbH and Co KG
Original Assignee
Oce Printing Systems GmbH and Co KG
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 Oce Printing Systems GmbH and Co KG filed Critical Oce Printing Systems GmbH and Co KG
Publication of EP0858621A1 publication Critical patent/EP0858621A1/fr
Application granted granted Critical
Publication of EP0858621B1 publication Critical patent/EP0858621B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/14—Electronic sequencing control

Definitions

  • the invention relates to a communication device in one electrographic printer or copier.
  • an electrographic Printing or copying machines are a plurality of Functional units, such as a fuser, a character generator, a paper transport device, a central control unit, etc. included.
  • Functional units such as a fuser, a character generator, a paper transport device, a central control unit, etc. included.
  • the functionality of all these functional units must be in operation of the printing or copying machine be coordinated.
  • Bus systems used that are controlled by a main module HM become.
  • the structure of such a known control system can be seen from Figure 1.
  • a submodule SUB1..SUBn controls power consumer LV, records data sensors and exchanges data and messages with others Submodules SUB1..SUBn off. While the power consumer LV via individual lines directly from the submodules SUB1..SUBn are controlled between submodule SUB1..SUBn and the individual sensors ES sensor modules SPU1..SPUn for processing the information recorded by the sensors inserted.
  • the submodules SUB1..SUBn communicate with the sensor modules via a second VBUS bus system.
  • the second bus system VBUS can be, for example act a coupling by means of a parallel V24 interface.
  • Communication between the sensor modules and the Submodules are made using a polling process, in which a submodule SUB1..SUBn desired data from a Queries sensor module SPU1..SPUn. Communication too between the submodules SUB1..SUBn takes place after this Polling procedure, with the main module HM as the master and the Submodules SUB1..SUBn can be considered as slaves.
  • the well-known query procedure In addition to the long program throughput time, the well-known query procedure also requires also an increased wiring effort, since parallel wiring is required. The efficiency of the The query procedure is also low because states are frequently queried be that since the previous query haven't changed.
  • the data traffic that is only between masters and slave can be handled by a single Control unit contained in the main module HM by means of priority control coordinates. This can cause delays come in the functional sequence of the printing or copying machine. This The fact is countered by the fact that rapid signal changes treated by means of a so-called parallel port query become.
  • the present invention has for its object a Communication device and a communication method for to show an electrographic printing or copying machine, that a fast, delay-free communication at the same time low wiring and high security guaranteed.
  • Bus system that contains the functional units for data communication coupled with each other, data exchange is always immediate between the functional units.
  • Any interface a functional unit can be regarded as a master which is why communication only between masters takes place.
  • each functional unit Through the defined address areas in the storage units of the interfaces that are always through the bus system updated, each functional unit always has about the current information in the printer or copier.
  • a complex request for information by an as Interface defined for a master is not required.
  • a Request from a functional unit about the state of others Functional units are easily accessed the interface's own storage unit. This requires comparatively little time, which makes the functional unit through the communication relationship with the other functional units is only slightly burdened.
  • the memory unit of the interface is designed as a dual-port RAM.
  • This advantageously allows simultaneous Access from the functional unit and the bus system on the storage unit.
  • the dual port RAM divided into two address areas, on the one hand data and news and other information related to this Data and messages are stored. This can be targeted the desired data can be accessed.
  • advantageous Way is the distance between the start byte of each other associated data and messages related to the information selected at a certain address spacing. This makes it easier addressing especially if, for example, a A distance of 2 KB is selected, only a part of the Address bits after accessing the first block to access the associated other block to be changed.
  • the information regarding is in the data or message block a state of a functional unit, for example whether a certain engine is in operation.
  • Information block is information about the data and Message block included. This can be a label what is new information, the must be sent. It can also provide information about it be how the information from the storage unit to report to the functional unit.
  • the information can can be called up independently by the functional unit (RTR bit) or an interrupt request is made by the functional unit the presence of new information in the dual-port RAM to draw attention. As this varies from functional unit to functional unit
  • the information blocks can be different in the different dual port RAM's from each other differentiate. The blocks of information can be used as needed printing operations.
  • FIFO registers of the storage unit assigned.
  • These FIFO registers have a FIFO empty line, which is assigned to the receiving processor triggers an interrupt routine.
  • the FIFO register becomes the address of a data or message block and its length entered when the in the storage unit writing processor based on the information in the information block determines that an interrupt routine should be initiated is.
  • a receiving processor can then process messages and data intended for him, if his workflow allows.
  • the sending processor depending on the depth of the FIFO, for example 128 messages regardless of the recipient Sell processors.
  • the invention can also function units through another interface be coupled to the bus system that are not special Perform the control task. For example, serve such functional units of sensor detection and evaluation. These functional units only receive those intended for them Information. The rest of the information is provided by the Interface hidden. This configuration allows simple functional units with little effort immediately be coupled with the bus system. A burden on others Functional units through direct coupling of the simple functional units to these are omitted.
  • Functional units SUB, SPU of a printing and copying machine there are eight Functional units SUB, SPU of a printing and copying machine shown. All functional units SPU, SUB are through a uniform CANBUS bus system for communication with each other coupled.
  • a first group of functional units form the submodules SUB1..SUBn. With these submodules SUB1..SUBn is, for example, the controller the paper transport, the character generator and the fuser, as well as the central control of the printing or copying machine.
  • These submodules SUB1..SUBn control the assigned ones Units, such as motors, heating devices and others Power consumers assigned to LV based on these aggregates Sensor elements.
  • With the other functional units are simple sensor assemblies that are outside of the submodules SUB1..SUBn buttons, switches, display elements, Control temperature sensors, motors and sensors.
  • the coupling of these sensor modules SPU1..SPUn to the bus system CANBUS takes place through an interface according to the figure 3.
  • the SPU1..SPUn sensor module has a first one Microprocessor UP1, for example of the type 80C535, which the controls the functional elements assigned to the sensor module and monitors and reports that occur to a subordinate Controller CONT, for example of the 82C200 type or receives.
  • This CONT controller leaves only those Messages and data from the CANBUS bus system pass through for the functionality of the SPU1..SPUn required are.
  • the number of these relevant data messages is extremely small, so that the CONT controller only via a transmit memory and two selectable receive memories disposes.
  • the connection of the CONT controller to the CANBUS bus system takes place via an analog driver module, for example of the type 82C250. In this driver block TR the level is adjusted to the CANBUS bus system.
  • a second microprocessor UP2 is used to control a submodule SUB1..SUBn.
  • the second microprocessor UP2 the type 80C167 can be used.
  • This microprocessor UP2 communicates with the bus system via a DPRAM memory unit CANBUS.
  • a third UP3 microprocessor for example the type 80C535. He communicates with a BCONT bus controller and this with a bus driver BTR.
  • Type 80C200 can be used as a BCONT bus controller and as a bus driver BTR type 80C250 can be used.
  • the second and the third microprocessor UP2, UP3 communicate immediately with the DPRAM memory unit.
  • the storage unit is concerned it is a dual port RAM DPRAM.
  • This dual-port RAM DPRAM is structured as shown in FIG. 5.
  • the entire address range of the dual port RAM is DPRAM divided into two address areas AB1, AB2.
  • everyone is there Address in the first address area AB1 an address in the second Address area AB2 assigned.
  • the distance K between each other assigned addresses is always the same and is, for example 2 KB.
  • Data is in the first address area AB1 and messages are filed and in the second address area AB2 Section data and news information 1 AB1 filed.
  • the data and messages of the first address area AB1 are structured in blocks.
  • a block D1, D2, Dn is replaced by a Designates the start address and is a maximum of 8 bytes long.
  • Of the second section AB2 is also in blocks I1, I2, In structured.
  • Each block I1, I2 ... In of the second address area AB2 contains information of the block assigned to it D1, D2, Dn of the first address area AB1.
  • the distance K starting addresses of related blocks D1, I1, .. Dn, in which correspond to different sections AB1, AB2 the distance K of the related Addresses of the different address areas AB1, AB2.
  • the information in the second address area AB2 relates to the associated data and message block.
  • This information can be a label of what it is is new information that needs to be sent. It can also be information about how the Information from the DPRAM memory unit to the functional unit is to be reported. The information can be from the functional unit can be called up independently (RTR bit) or one Interrupt request makes the functional unit on the presence new information in the dual port RAM DPRAM.
  • RTR bit Real-Time SR bit
  • one Interrupt request makes the functional unit on the presence new information in the dual port RAM DPRAM.
  • the length of the data of the associated data block in the first Address area AB1 is part of the information block I1..In. In general, it is information about how to process the data and messages D1..Dn further are.
  • the receiving microprocessor UP2, UP3 through an interrupt routine on the data or messages D1..Dn should be pointed out, then the sender carries Processor UP2, UP3 the address of the first byte written a message in the first address area AB1 and the associated one Data length in a first-in-first-out (FIFO) register FIFO1, FIFO2 on.
  • the FIFO register FIFO1, FIFO2 contains a FIFO empty line, those with the receiving processor UP2, UP3 is coupled and for each memory entry in the FIFO register FIFO1, FIFO2 an interrupt in the receiving microprocessor UP2, UP3 triggers.
  • Each FIFO register FIFO1, FIFO2 is for one direction of transmission responsible. So the first FIFO register FIFO1 from third microprocessor UP3 and described by the second microprocessor UP2 read. The second FIFO register FIFO2 is described by the second microprocessor UP2 and by the third Microprocessor UP3 read.
  • the FIFO registers FIFO1, FIFO2 can accommodate 128 different messages that generate an interrupt should trigger. These messages can be processed successively without changing their order.
  • the immediate stopping of data or messages D1..Dn is favored in that the second microprocessor UP2 if there is a new message, an entry in the second FIFO register makes FIFO2. This is done regardless of the Information in the second address area AB2 of the dual-port RAM DPRAM.
  • the third microprocessor UP3 is thus the data or message at the next opportunity via the bus system Transfer CANBUS to the other functional units SPU, SUB.
  • each functional unit SUB1..SUBn, SPU1..SPUn always a current image of all sensors, consumers and control states of the printing or copying machine to disposal.
  • the assignment of data or messages D1..Dn is particularly simple because in every dual-port RAM DPRAM this data or messages D1..Dn the same Address is assigned. For example, data or Messages D1..Dn to sensor 1 at start address 100 of a DPRAM. After transmission, these are available Data or messages D1..Dn in all dual port RAM's DPRAM the other functional units SUB1..SUBn are quasi-synchronous to disposal. You just have to start with address 100 to be read.
  • a bus system CANBUS for the communication tasks described above can be used is from CAN bus specification 2.0, part A and B from April 94, known by Philips.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Multi Processors (AREA)
  • Image Input (AREA)
  • Facsimiles In General (AREA)

Abstract

Pour assurer la communication dans une machine d'impression ou de photocopie, on utilise un système bus (CANBUS) uniforme. Chaque unité fonctionnelle de l'appareil est en liaison avec le système bus (CANBUS) via une interface. Cette interface comprend de préférence une unité mémoire (DPRAM) dans laquelle des données et des messages affectés à certaines unités fonctionnelles ou à certains détecteurs sont respectivement mémorisés en des emplacements déterminés. En cas de modification de ces données ou messages (D1...Dn), ces dernièrs sont actualisés dans toutes les unités mémoires (DPRAM). Si besoin, les unités fonctionnelles (SUB1...SUBn) sont averties de la présence de nouvelles données ou de nouveaux messages (D1...Dn).

Claims (9)

  1. Dispositif de communication dans un appareil d'impression et de reproduction électrographique comprenant une pluralité d'unités fonctionnelles qui sont couplées entre elles pour la communication de données, comprenant :
    un couplage des unités fonctionnelles au moyen d'un système de bus unitaire (CANBUS),
    une interface aboutissant au système de bus (CANBUS), associée à chaque unité fonctionnelle, qui renferme une unité de mémoire (DPRAM) à accès aléatoire, dans laquelle certaines informations relatives aux unités fonctionnelles peuvent être enregistrées dans des régions d'adresses définies (D1..Dn, I1..In) et ces informations sont constamment actualisées dans toutes les interfaces par le système de bus (CANBUS), de sorte que chaque unité fonctionnelle dispose à chaque instant d'une vue d'ensemble des états de fonction dans l'appareil d'impression et de reproduction électrographique.
  2. Dispositif de communication selon la revendication 1, comprenant un système de bus (CANBUS) organisé pour les messages, qui transmet immédiatement une modification d'une information à toutes les unités fonctionnelles.
  3. Dispositif de communication selon une des revendications 1 et 2, comprenant dans chaque unité fonctionnelle une unité de mémoire (DPRAM) constituée par ce qu'on appelle une Dual-Port-Ram, dont la région d'adresses est subdivisée en deux régions élémentaires (AB1, AB2), la première région d'adresses (AB1) servant à recevoir des données et des messages et la deuxième région d'adresses (AB2) servant à recevoir des informations relatives aux données et messages enregistrés dans la première région d'adresses (AB1).
  4. Dispositif de communication selon la revendication 3, dans lequel chaque bloc de données ou de messages (D1..Dn) est associé à un bloc d'informations (Il..In), de manière que les adresses des premiers octets respectifs des blocs aient un certain écartement d'adresses (K) entre eux.
  5. Dispositif de communication selon une des revendications 1 à 4, comprenant deux registres First-In-First-Out (premier entré, premier sorti) (FIFO) associés à l'interface, dont l'un peut être écrit par le bus et lu par l'unité fonctionnelle, et l'autre peut être écrit et lu dans le sens inverse, l'adresse d'un bloc de données ou de messages (D1..Dn) et sa longueur dans l'unité de mémoire (DPRAM) à accès aléatoire pouvant être enregistrées dans ces FIFO et la lecture de cette information déclenchant une procédure d'interruption dans le processeur (UP2, UP3) qui est en train de lire.
  6. Dispositif de communication selon une des revendications 1 à 5, comprenant une interface additionnelle aboutissant au système de bus (CANBUS), qui peut être mise en oeuvre pour coupler entre elles des unités fonctionnelles possédant des tâches de commande minimes au système de bus (CANBUS), l'autre interface étant configurée de manière à ne laisser passer que certaines données et messages pour l'unité fonctionnelle considérée.
  7. Procédé pour établir une communication dans un appareil d'impression et de reproduction électrographique entre une pluralité d'unités fonctionnelles qui sont couplées entre elles par un système de bus unitaire (CANBUS) pour la communication de données, comportant les étapes de procédé suivantes :
    lors d'une initialisation, les interfaces aboutissant au système de bus (CANBUS) qui sont associées à chaque unité fonctionnelle sont mises dans un état de base, de sorte que, dans une unité de mémoire (DPRAM) à accès aléatoire, qui est contenue dans chaque interface, les données d'état de base de toutes les unités fonctionnelles sont disponibles dans des régions d'adresses respectives (D1..Dn) définies pour cela,
    en présence d'un changement d'un état d'une unité fonctionnelle, ce changement est introduit dans la région d'adresses considérée (D1..Dn) de l'unité de mémoire (DPRAM) qui est associée à l'unité fonctionnelle, et
    ce changement est transmis au moyen du système de bus (CANBUS) aux interfaces de toutes les unités fonctionnelles, et là, il est introduit respectivement dans la région d'adresses considérée (D1..Dn) de l'unité de mémoire (DPRAM), de sorte que chaque unité fonctionnelle dispose à chaque instant d'une vue d'ensemble des états de fonction dans l'appareil d'impression et de reproduction électrographique.
  8. Procédé de communication selon la revendication 7, comprenant, dans chaque unité fonctionnelle, une unité de mémoire (DPRAM) constituée par ce qu'on appelle une Dual-Port-Ram, dont la région d'adresses est subdivisée en deux régions élémentaires (AB1, AB2) cependant que, en présence d'un changement d'un état d'une unité fonctionnelle, des données et messages sont introduits dans la première région d'adresses (AB1) et des informations relatives aux données et messages mémorisés dans la première région d'adresses (AB1) sont introduits dans la deuxième région d'adresses (AB2).
  9. Procédé de communication selon une des revendications 7 et 8, comprenant deux registres First-In-First-Out (premier entré, premier sorti) (FIFO) associés à l'interface, dont l'un peut être écrit par le bus et lu par l'unité fonctionnelle, et l'autre peut être écrit et lu dans le sens inverse, cependant que, en fonction des informations mémorisées dans l'unité de mémoire (DPRAM) et relatives aux données et messages à modifier, l'adresse d'un bloc de données ou de messages (D1..Dn) et sa longueur sont enregistrées dans la FIFO considérée et la lecture de cette information déclenche une procédure d'interruption dans le processeur (UP2, UP3) qui est en train de lire.
EP96925648A 1995-10-31 1996-08-05 Dispositif de communication faisant partie d'une machine d'impression et de photocopie electrographiques Expired - Lifetime EP0858621B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19540672 1995-10-31
DE19540672 1995-10-31
PCT/DE1996/001463 WO1997016771A1 (fr) 1995-10-31 1996-08-05 Dispositif de communication faisant partie d'une machine d'impression et de photocopie electrographiques

Publications (2)

Publication Number Publication Date
EP0858621A1 EP0858621A1 (fr) 1998-08-19
EP0858621B1 true EP0858621B1 (fr) 1999-03-17

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EP96925648A Expired - Lifetime EP0858621B1 (fr) 1995-10-31 1996-08-05 Dispositif de communication faisant partie d'une machine d'impression et de photocopie electrographiques

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Country Link
US (1) US6122462A (fr)
EP (1) EP0858621B1 (fr)
JP (1) JP2000500880A (fr)
DE (1) DE59601474D1 (fr)
WO (1) WO1997016771A1 (fr)

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US9125455B2 (en) 2010-01-21 2015-09-08 Boa Technology Inc. Guides for lacing systems
USD751281S1 (en) 2014-08-12 2016-03-15 Boa Technology, Inc. Footwear tightening reels
USD758061S1 (en) 2014-09-08 2016-06-07 Boa Technology, Inc. Lace tightening device
US9375053B2 (en) 2012-03-15 2016-06-28 Boa Technology, Inc. Tightening mechanisms and applications including the same
USD767269S1 (en) 2014-08-26 2016-09-27 Boa Technology Inc. Footwear tightening reel
US9532626B2 (en) 2013-04-01 2017-01-03 Boa Technology, Inc. Methods and devices for retrofitting footwear to include a reel based closure system
USD776421S1 (en) 2015-01-16 2017-01-17 Boa Technology, Inc. In-footwear lace tightening reel
US10182935B2 (en) 2014-10-01 2019-01-22 Ossur Hf Support for articles and methods for using the same

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US6389262B1 (en) 2001-04-06 2002-05-14 Hewlett-Packard Company Media reproduction systems and methods of operating media reproduction systems
US10702409B2 (en) 2013-02-05 2020-07-07 Boa Technology Inc. Closure devices for medical devices and methods
WO2015003079A1 (fr) 2013-07-02 2015-01-08 Boa Technology Inc. Mécanismes de limitation de tension pour des dispositifs de fermeture et procédés associés
US9700101B2 (en) 2013-09-05 2017-07-11 Boa Technology Inc. Guides and components for closure systems and methods therefor
US9681705B2 (en) 2013-09-13 2017-06-20 Boa Technology Inc. Failure compensating lace tension devices and methods
JP6526691B2 (ja) 2013-11-18 2019-06-05 ボア テクノロジー，インコーポレイテッド 補装具および整形用支持具を自動的に閉じる方法および装置
USD835898S1 (en) 2015-01-16 2018-12-18 Boa Technology Inc. Footwear lace tightening reel stabilizer

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9125455B2 (en) 2010-01-21 2015-09-08 Boa Technology Inc. Guides for lacing systems
US9375053B2 (en) 2012-03-15 2016-06-28 Boa Technology, Inc. Tightening mechanisms and applications including the same
US9532626B2 (en) 2013-04-01 2017-01-03 Boa Technology, Inc. Methods and devices for retrofitting footwear to include a reel based closure system
USD751281S1 (en) 2014-08-12 2016-03-15 Boa Technology, Inc. Footwear tightening reels
USD767269S1 (en) 2014-08-26 2016-09-27 Boa Technology Inc. Footwear tightening reel
USD758061S1 (en) 2014-09-08 2016-06-07 Boa Technology, Inc. Lace tightening device
US10182935B2 (en) 2014-10-01 2019-01-22 Ossur Hf Support for articles and methods for using the same
US11304838B2 (en) 2014-10-01 2022-04-19 Ossur Hf Support for articles and methods for using the same
US12251327B2 (en) 2014-10-01 2025-03-18 Ossur Hr Support for articles and methods for using the same
USD776421S1 (en) 2015-01-16 2017-01-17 Boa Technology, Inc. In-footwear lace tightening reel

Also Published As

Publication number Publication date
US6122462A (en) 2000-09-19
WO1997016771A1 (fr) 1997-05-09
JP2000500880A (ja) 2000-01-25
EP0858621A1 (fr) 1998-08-19
DE59601474D1 (de) 1999-04-22

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