EP0395842A3 - Method of automatic identification of a type wheel - Google Patents
Method of automatic identification of a type wheel Download PDFInfo
- 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- Withdrawn
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
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
- Character Spaces And Line Spaces In Printers (AREA)
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).
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)
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)
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)
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 |
DE2926819A1 (en) * | 1978-07-04 | 1980-01-17 | Canon Kk | PRINTER |
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 |
-
1989
- 1989-04-29 DE DE3914256A patent/DE3914256A1/en not_active Withdrawn
-
1990
- 1990-02-13 EP EP19900102778 patent/EP0395842A3/en not_active Withdrawn
- 1990-04-25 JP JP2107716A patent/JPH0361543A/en active Pending
- 1990-04-27 US US07/516,132 patent/US5005995A/en not_active Expired - Fee Related
Patent Citations (3)
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 |
EP0395842A2 (en) | 1990-11-07 |
DE3914256A1 (en) | 1990-10-31 |
JPH0361543A (en) | 1991-03-18 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): CH DE FR GB IT LI NL SE |
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PUAL | Search report despatched |
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17P | Request for examination filed |
Effective date: 19920226 |
|
17Q | First examination report despatched |
Effective date: 19931015 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19931126 |