EP0395842A3 - Method of automatic identification of a type wheel - Google Patents

Method of automatic identification of a type wheel Download PDF

Info

Publication number
EP0395842A3
EP0395842A3 EP19900102778 EP90102778A EP0395842A3 EP 0395842 A3 EP0395842 A3 EP 0395842A3 EP 19900102778 EP19900102778 EP 19900102778 EP 90102778 A EP90102778 A EP 90102778A EP 0395842 A3 EP0395842 A3 EP 0395842A3
Authority
EP
European Patent Office
Prior art keywords
type wheel
type
control circuit
identification
characteristic data
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.)
Withdrawn
Application number
EP19900102778
Other languages
German (de)
French (fr)
Other versions
EP0395842A2 (en
Inventor
Ewald Bruns
Rolf Bruns
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.)
AEG Olympia Office GmbH
Original Assignee
AEG Olympia Office GmbH
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 AEG Olympia Office GmbH filed Critical AEG Olympia Office GmbH
Publication of EP0395842A2 publication Critical patent/EP0395842A2/en
Publication of EP0395842A3 publication Critical patent/EP0395842A3/en
Withdrawn legal-status Critical Current

Links

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
    • B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
    • B41J1/24—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being perpendicular to the axis of rotation
    • B41J1/28—Carriers stationary for impression, e.g. with the types or dies not moving relative to the carriers
    • B41J1/30—Carriers stationary for impression, e.g. with the types or dies not moving relative to the carriers with the types or dies moving relative to the carriers or mounted on flexible carriers

Abstract

Eine automatische Identifizierung eines Typenrades nach dem Ein­ setzen in einen Drucker oder in eine Schreibmaschine ermöglicht eine automatische Anpassung bestimmter Parameter wie Abdruck­ stärke, Schriftteilung, Transportschritt des Farbbandes usw. ohne daß die Bedienungsperson beim Wechseln des Typenrades gesonderte Einstellungen vornehmen muß. Zu diesem Zweck ist es bekannt, die Typenradkassette oder das Typenrad selbst mit Identifizierungs­ codes zu versehen, die durch gesonderte Abtastvorrichtung abge­ tastet werden. Eine derartig ausgebildete Erkennungseinrichtung ist sehr aufwendig und teuer. Die Erfindung ermöglicht eine ein­ fachere Identifizierung des Typenrades (1) dadurch, daß der Winkel zwischen dem Stoppelement und dem Kupplungselement der Stift-Schlitz-Verbindung an der Nabe (2) des Typenrades (1) je nach dem auf den Speichen vorhandenen Schrifttypensatz unter­ schiedlich groß ausgebildet wird, daß durch das Blockieren des Antriebsmotors (10) während des Suchlaufs Steuersignale in der Steuerschaltung (35) ausgelöst werden, durch die die Steuerschal­ tung (35) dann die Größe des Winkels unter Auszählung der Schrit­ te bis zur Nullstellung des Typenrades (1) berechnet und daraus Kenndaten ermittelt, die als Digitalsignale in einem Digital­ speicher (36) abgelegt werden. Der Ablauf der Druckwerksfunk­ tionen, wie die Bewegung des Typenträgerwagens (42) in Zeilen­ richtung, Steuerung der Typenandruckstärke wird durch die Steuer­ schaltung (35) unter Berücksichtigung der im Digitalspeicher (36) abgelegten Kenndaten gesteuert. An automatic identification of a type wheel after a put in a printer or in a typewriter enables automatic adjustment of certain parameters such as print strength, lettering, transport step of the ribbon, etc. without the operator having to make special settings when changing the type wheel. For this purpose it is known to provide the type wheel cassette or the type wheel itself with identification codes which are scanned by a separate scanning device. Such a detection device is very complex and expensive. The invention enables a more simple identification of the type wheel (1) in that the angle between the stop element and the coupling element of the pin-slot connection on the hub (2) of the type wheel (1) depending on the font set on the spokes under different is formed large that by blocking the drive motor (10) during the search control signals are triggered in the control circuit (35) through which the control circuit (35) then the size of the angle counting the steps te up to the zero position of the type wheel ( 1) calculated and characteristic data determined therefrom, which are stored as digital signals in a digital memory (36). The sequence of the printing unit functions, such as the movement of the type carrier carriage (42) in the line direction, control of the type pressure strength is controlled by the control circuit (35) taking into account the characteristic data stored in the digital memory (36).

EP19900102778 1989-04-29 1990-02-13 Method of automatic identification of a type wheel Withdrawn EP0395842A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3914256 1989-04-29
DE3914256A DE3914256A1 (en) 1989-04-29 1989-04-29 METHOD FOR AUTOMATICALLY IDENTIFYING A TYPE WHEEL

Publications (2)

Publication Number Publication Date
EP0395842A2 EP0395842A2 (en) 1990-11-07
EP0395842A3 true EP0395842A3 (en) 1992-01-22

Family

ID=6379787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900102778 Withdrawn EP0395842A3 (en) 1989-04-29 1990-02-13 Method of automatic identification of a type wheel

Country Status (4)

Country Link
US (1) US5005995A (en)
EP (1) EP0395842A3 (en)
JP (1) JPH0361543A (en)
DE (1) DE3914256A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6574000B1 (en) * 1996-11-22 2003-06-03 Pitney Bowes Inc. System for the enhancement of information based indicia and postage security devices
US6299274B1 (en) 1997-12-15 2001-10-09 Lexmark International, Inc. Thermal ink jet printer cartridge identification

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4428694A (en) * 1981-02-11 1984-01-31 Xerox Corporation Rotary printing device with identifying means and method and apparatus for in situ identification
DE3322999A1 (en) * 1983-06-25 1985-01-03 Olympia Werke Ag, 2940 Wilhelmshaven Printing mechanism for a typewriter or similar office machine
US4541746A (en) * 1983-10-14 1985-09-17 International Business Machines Corporation Initializing apparatus for daisy wheel printer

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3498439A (en) * 1967-07-21 1970-03-03 Frederick P Willcox Photo-optical code translator and selector
FR1597830A (en) * 1968-01-29 1970-06-29
US3731780A (en) * 1971-05-10 1973-05-08 Electrospace Corp Printing apparatus and controlling circuit therefor
CA1039217A (en) * 1974-07-01 1978-09-26 Willy J. Grundherr Rotary wheel printing system
US4074798A (en) * 1976-09-01 1978-02-21 Xerox Corporation Encoded print wheel system
GB1604577A (en) * 1977-09-14 1981-12-09 Exxon Research Engineering Co Coded printing element and apparatus for use thereof
DE2954671C2 (en) * 1978-07-04 1993-01-28 Canon K.K., Tokio/Tokyo, Jp
DE2935727C2 (en) * 1978-09-05 1984-07-05 Canon K.K., Tokio/Tokyo Control circuit for a carriage and type disk drive of a printer
US4293233A (en) * 1978-12-06 1981-10-06 Sci Systems, Inc. Printer control system
IT1165548B (en) * 1983-02-22 1987-04-22 Olivetti & Co Spa ELECTRONIC WRITING MACHINE WITH DEVICE FOR ZERO POSITIONING OF A REVOLVING CHARACTER ORGAN
JPS61177262A (en) * 1985-02-01 1986-08-08 Tokyo Electric Co Ltd Home position detector for printer with printing wheel
IT1183860B (en) * 1985-05-29 1987-10-22 Olivetti & Co Spa SELECTION DEVICE FOR A CHARACTER ELEMENT OF WRITING MACHINES
GB8607367D0 (en) * 1986-03-25 1986-04-30 Roneo Alcatel Ltd Position sensor
JPS63170051A (en) * 1987-01-07 1988-07-13 Brother Ind Ltd Printing apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4428694A (en) * 1981-02-11 1984-01-31 Xerox Corporation Rotary printing device with identifying means and method and apparatus for in situ identification
DE3322999A1 (en) * 1983-06-25 1985-01-03 Olympia Werke Ag, 2940 Wilhelmshaven Printing mechanism for a typewriter or similar office machine
US4541746A (en) * 1983-10-14 1985-09-17 International Business Machines Corporation Initializing apparatus for daisy wheel printer

Also Published As

Publication number Publication date
US5005995A (en) 1991-04-09
DE3914256A1 (en) 1990-10-31
JPH0361543A (en) 1991-03-18
EP0395842A2 (en) 1990-11-07

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