EP0766845B1 - Imprimante ou photocopieur electrographique comportant un systeme de reconnaissance du cylindre de fixage - Google Patents

Imprimante ou photocopieur electrographique comportant un systeme de reconnaissance du cylindre de fixage Download PDF

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Publication number
EP0766845B1
EP0766845B1 EP95917282A EP95917282A EP0766845B1 EP 0766845 B1 EP0766845 B1 EP 0766845B1 EP 95917282 A EP95917282 A EP 95917282A EP 95917282 A EP95917282 A EP 95917282A EP 0766845 B1 EP0766845 B1 EP 0766845B1
Authority
EP
European Patent Office
Prior art keywords
roller
fixing
electrographic printer
copier
copier according
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
EP95917282A
Other languages
German (de)
English (en)
Other versions
EP0766845A1 (fr
Inventor
Edmund Creutzmann
Walter Kopp
Hans Winter
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 EP0766845A1 publication Critical patent/EP0766845A1/fr
Application granted granted Critical
Publication of EP0766845B1 publication Critical patent/EP0766845B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2053—Structural details of heat elements, e.g. structure of roller or belt, eddy current, induction heating
    • 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
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat

Definitions

  • the invention relates to an electrographic printing or Copier with a thermal printing fuser with replaceable Fuser roller and an associated fuser roller detection system.
  • the toner image on the Paper fixed under pressure and heat.
  • the print quality of such devices depends crucially the fusing quality that can be achieved with the fuser.
  • the Fixing quality in turn depends on a wide variety Operating parameters of the fuser. These are e.g. the the Fixing energy supplied to the recording medium and the negative pressure, with which the recording medium braked against one Preheating saddle is pressed. Is of particular importance the supplied fixing energy.
  • the still depends Fixing quality is crucial from the characteristics of the record carrier from.
  • the fixing device in one electrographic printer or copier with a heat setting station an arrangement for menu-driven setting of Operating parameters depending on the data carrier-specific To provide characteristic data.
  • the main operating parameters are the fixing energy and the negative pressure in the fuser.
  • the data carrier-specific characteristics e.g. the paper basis weight entered, and fixing levels selected.
  • a evaluation arrangement assigned to the controller of the device determined from the entered fixing levels and the Paper weight Target values of a control arrangement, which the operating parameters, like fixing energy and negative pressure, in the Fuser controls. Entering paper basis weight and paper type and the selection of the fusing levels by calling up a menu in a control panel.
  • This Functional parameters are, for example, the fusing roller temperature, the preheating saddle temperature, the heating saddle temperature, the amount of oil supplied to the oiling device, the Pinch roller contact pressure and the paper run control algorithm.
  • the object of the invention is therefore an electrographic Printer or copier with a thermal printing fuser with which it is possible in a simple manner to determine fuser roll-specific characteristics and during the fusing process to consider.
  • the thermal printer fuser is a fuser roller detection system assigned that via a scanner an edge area arranged on the fixing roller fuser roller-specific characteristics and scans over a Function control arrangement the function or operating parameters corrected or influenced the fuser accordingly.
  • the detection of the fuser roller coding can be different be carried out, depending on the fusing roller one or more of the number of fuser roller systems temperature-resistant magnets in the fusing roller edge area be provided.
  • the magnetic field of the magnets is included a non-contact HALL sensor or a REED switch detected. It is also possible to include the fuser roller or several coding holes in the fixing roller edge area provided and these contactless inductive or capacitive to scan or an optical scanner too use, e.g. a characteristic of the fusing roller Has bar code marking.
  • FIG Heat fixing device An electrophotographic printing device for printing on Continuous paper contains one shown schematically in FIG Heat fixing device.
  • This heat fixing device is designed as a thermal pressure fixing device. It contains a heating roller 11 heated by radiator 10 and an electric motor to the heating roller 11 can be swung on and off the pressure roller 12.
  • the pressure mechanism for the pressure roller 12 can be designed in accordance with EP-B1 0 505 418. This pressing mechanism enables the pressing force F to change the pressure roller 12 to the heating roller 11.
  • the Heating roller 11 consists of an aluminum cylinder with it arranged heat-resistant coating, the pressure roller 12 also from an aluminum cylinder with a coating made of silicone or other materials. It becomes electric motor driven and is in accordance with EP-B1 0 505 404 trained bearing mechanism replaceable in attached to the printing device.
  • the heating roller 11 is also an oiling device 13 provided on the quantity controllable the surface of the Heating roller 11 separating oil can be supplied.
  • a heated preheating caliper 15 with associated vacuum brake 16 for the record carrier 17. It is used as the Preheating continuous paper trained recording medium 17 and in the preheated state the actual fixing gap feed between the rollers 11 and 12.
  • Preheating saddle can also be used to print on continuous paper that already has a toner image on one side not used or only slightly heated preheating saddle become.
  • One of the rollers 11 and 12 in the paper running direction downstream cooling device 18 ensures cooling of the heated paper.
  • the cooling device 18 contains an apertured cooling surface 19 from the record carrier 17 is covered, with a Air supply duct 20 supplied cold air from the openings flows and a cooling air cushion under the record carrier arises.
  • the Preheating the continuous paper 17 via a preheating saddle 15, of two heated saddles connected in series consists, namely a fixed preheating saddle 21 and one heating saddle 23 pivotable about a pivot point 22.
  • the printing device has a fuser roller detection system on that a coding area via a scanner 24 25 with fixing roller-specific characteristics Traces characteristics.
  • This coding area 25 is located preferably in the edge area of the fixing roller. Scanners 24 and Coding areas can correspond to FIGS. 2 to 6 be trained.
  • the coding area contains depending on the number of fuser roller systems or several temperature-resistant magnets 26, whose magnetic field with a non-contact HALL sensor or REED switch 27 are detected.
  • This switch 27 must be relative be arranged close to the rotating area of the fixing roller 11.
  • the coding field 25 can also correspond to FIG. 4
  • optically detectable markings e.g. in the form of a bar code 32 apply and these markings via an optical To scan sensor 33.
  • optical To scan sensor 33 can at a variable distance from the fixing roller surface 11 be arranged.
  • the functional or operating parameters of the Functional units e.g. the fuser roller heater 10, the Oiling station 13, the feed saddle 15 and the pressing force F for the swivel mechanism for the roller is that from the Figure 7 apparent function control arrangement provided.
  • you the basic structure is similar to that from EP-A1 0 593 813 known arrangement for program-controlled setting of Operating parameters of the heat setting station depending on Recording medium-specific characteristics.
  • the function control arrangement is part of the device control, it can however, it can also be designed as a separate arrangement.
  • she essentially contains a microprocessor-controlled processing unit 34, which is coupled to the scanner 24.
  • One is also coupled to the processing unit 34 Input unit 35 in the form of a display with an associated Keyboard used e.g.
  • the processing unit 34 still assigned and connected to it is a power block 36 and a converter block 37.
  • the power block 36 sets the control signals of the processing unit 34 in control signals for the individual functional units the fixing station, such as oiling station 13, pressure mechanism 12, fixing roller heating 11 and preheating and Caliper heater 21, 23 um.
  • the functional state of the functional units is scanned using appropriate sensors. Their output signals are then in via the converter block 37 in correspondingly processable data implemented and the processing unit 34 fed.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fixing For Electrophotography (AREA)

Claims (9)

  1. Appareil d'impression ou de copie électrographique comprenant :
    une station de fixage à thermopression destinée à fixer des images de toner sur un support d'enregistrement (17) au moyen d'un système de rouleaux comprenant un rouleau de fixage chauffé (11) disposé de façon interchangeable, et un contre-rouleau (12), entre lesquels on fait passer le support d'enregistrement (17), et des groupes fonctionnels associés au système de rouleaux, comme un chauffage (10) du rouleau de fixage, une station d'huilage (13), un appui d'arrivée (15) et un mécanisme de pivotement pour les rouleaux, et
    un système de reconnaissance du rouleau de fixage, ledit système de reconnaissance du rouleau de fixage comprenant :
    une zone de codage (25) disposée sur le rouleau de fixage (11) et possédant des éléments (26, 29, 31, 32) détectables qui caractérisent des propriétés spécifiques du rouleau de fixage (11),
    un dispositif détecteur (24) qui détecte la zone de codage (25), et
    un dispositif de commande du fonctionnement (34, 35, 36, 37) couplé au dispositif détecteur (24) et aux groupes fonctionnels, qui règle les paramètres de fonctionnement des groupes fonctionnels.
  2. Appareil d'impression ou de copie électrographique selon la revendication 1, dans lequel la zone de codage (25) est disposée dans la région de bord du rouleau de fixage (11).
  3. Appareil d'impression ou de copie électrographique selon une des revendications 1 et 2, comprenant des éléments en une matière étrangère (31, 26) résistante à la température, disposés dans la zone de codage (25).
  4. Appareil d'impression ou de copie électrographique selon la revendication 3, dans lequel les éléments en matière étrangère sont constitués par des aimants de détection (26).
  5. Appareil d'impression ou de copie électrographique selon une des revendications 1 et 2, comprenant une succession d'évidements (29) disposée dans la zone de codage (25).
  6. Appareil d'impression ou de copie électrographique selon une des revendications 1 et 2, comprenant une succession de marquages (32) détectables par voie optique disposée dans la zone de codage (25).
  7. Appareil d'impression ou de copie électrographique selon la revendication 6, dans lequel les marquages sont constitués par un marquage du type code à barres (32).
  8. Appareil d'impression ou de copie électrographique selon une des revendications 1 à 7, dans lequel le dispositif de commande du fonctionnement (34, 35, 36, 37) fait partie d'une commande d'appareil qui commande les groupes de l'appareil d'impression ou de copie.
  9. Appareil d'impression ou de copie électrographique selon une des revendications 1 à 8, comprenant un moyen d'affichage (35) connecté au dispositif de commande du fonctionnement (34, 35, 36, 37).
EP95917282A 1994-06-21 1995-05-08 Imprimante ou photocopieur electrographique comportant un systeme de reconnaissance du cylindre de fixage Expired - Lifetime EP0766845B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4421641 1994-06-21
DE4421641 1994-06-21
PCT/DE1995/000603 WO1995035529A1 (fr) 1994-06-21 1995-05-08 Imprimante ou photocopieur electrographique comportant un systeme de reconnaissance du cylindre de fixage

Publications (2)

Publication Number Publication Date
EP0766845A1 EP0766845A1 (fr) 1997-04-09
EP0766845B1 true EP0766845B1 (fr) 1999-07-14

Family

ID=6521106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95917282A Expired - Lifetime EP0766845B1 (fr) 1994-06-21 1995-05-08 Imprimante ou photocopieur electrographique comportant un systeme de reconnaissance du cylindre de fixage

Country Status (3)

Country Link
EP (1) EP0766845B1 (fr)
DE (1) DE59506393D1 (fr)
WO (1) WO1995035529A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6194070A (ja) * 1984-10-15 1986-05-12 Ricoh Co Ltd 作像条件設定方法
JPH03212673A (ja) * 1990-01-17 1991-09-18 Canon Inc 定着装置
JPH06118824A (ja) * 1992-10-06 1994-04-28 Canon Inc 加熱装置及び画像形成装置
EP0593813B1 (fr) * 1992-10-22 1995-12-27 Siemens Nixdorf Informationssysteme Aktiengesellschaft Imprimante ou copieur électrographique muni d'une station de fixage thermique et d'un agencement pour la sélection des paramètres de fonctionnement par commande à programme

Also Published As

Publication number Publication date
EP0766845A1 (fr) 1997-04-09
DE59506393D1 (de) 1999-08-19
WO1995035529A1 (fr) 1995-12-28

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