EP0322727A3 - Character generator for a printer with a matrix print head - Google Patents
Character generator for a printer with a matrix print head Download PDFInfo
- Publication number
- EP0322727A3 EP0322727A3 EP88121361A EP88121361A EP0322727A3 EP 0322727 A3 EP0322727 A3 EP 0322727A3 EP 88121361 A EP88121361 A EP 88121361A EP 88121361 A EP88121361 A EP 88121361A EP 0322727 A3 EP0322727 A3 EP 0322727A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- character
- microprocessor
- character generator
- print head
- matrix
- 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- Withdrawn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
- B41J5/00—Devices or arrangements for controlling character selection
- B41J5/30—Character or syllable selection controlled by recorded information
- B41J5/44—Character or syllable selection controlled by recorded information characterised by storage of recorded information
Abstract
Druckvorrichtungen mit Matrix-Druckköpfen haben mindestens einen Zeichengenerator, in dem eine Vielzahl von Schriftarten und Bezeichnungen abgespeichert ist. Bei bekannten Vorrichtungen werden aus dem Zeichengenerator Zeichenpunktemuster gemäß den über eine Tastatur bzw. eine Schnittstelle erzeugten Zeichen codedaten über einen Mikroprozessor abgerufen und über eine Drucksteuereinrichtung dem Druckkopf zur Erzeugung von Schriften zugeführt. Da die Zeichenaufbereitung in einem von dem Zeichen generator getrennt angeordneten Mikroprozessor erfolgt, sind viele Leitungen erforderlich. Außerdem ist der Mikroprozessor ziemlich belastet, da über diesen auch alle anderen Funktionen wie z. B. Wagenantrieb, Papiertransport, Farbbandantrieb usw. gesteuert werden. Erfindungsgemäß werden die Leistungsfähigkeit und die Zuverlässigkeit der Druckvorrichtungen mit einem Matrix-Druckkopf dadurch erhöht, daß der Zeichengenerator (10, 16) einen eigenen Mikroprozessor (18, 19) enthält. Da die Auf bereitung der Zeichenmatrix direkt in dem Zeichengenerator er folgt, können die Ansteuerimpulse direkt von diesem zu dem Matrix-Druckkopf (12) gegeben werden. Der sogenannte intelligente Zeichengenerator (10, 16) erfordert nur wenige Leitungen und entlastet die Zentralsteuereinheit derart, daß die Leistungs fähigkeit und die Zuverlässigkeit der Maschine erhöht werden. Außerdem ermöglichen die als auswechselbare Fonts ausgebildeten Zeichengeneratoren (10, 16) keine Festlegung auf eine bestimmte Speichergröße und/oder auf einen bestimmten Mikroprozessor und/oder auf ein bestimmtes Optimierungs- bzw. Aufbereitungs verfahren. Print devices with matrix print heads have at least one Character generator in which a variety of fonts and Designations is stored. In known devices are created from the character generator according to the characters generated via a keyboard or an interface code data retrieved via a microprocessor and via a Print control device the print head for the generation of fonts fed. Because the character editing in one of the characters generator separately arranged microprocessor takes place many lines required. In addition, the microprocessor fairly stressed, since all other functions are also available such as B. carriage drive, paper transport, ribbon drive, etc. to be controlled. According to the invention, the performance and the reliability of the printing devices with one Matrix print head increased in that the character generator (10, 16) contains its own microprocessor (18, 19). Since the on preparation of the character matrix directly in the character generator follows, the drive pulses directly from this to the Matrix print head (12) are given. The so-called intelligent Character generator (10, 16) requires only a few lines and relieves the central control unit such that the power ability and reliability of the machine can be increased. In addition, they are designed as interchangeable fonts Character generators (10, 16) do not commit to a specific one Memory size and / or on a specific microprocessor and / or for a specific optimization or preparation method.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873744263 DE3744263A1 (en) | 1987-12-24 | 1987-12-24 | CHARACTER GENERATOR FOR A PRINTING DEVICE WITH A MATRIX PRINT HEAD |
| DE3744263 | 1987-12-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0322727A2 EP0322727A2 (en) | 1989-07-05 |
| EP0322727A3 true EP0322727A3 (en) | 1990-01-31 |
Family
ID=6343718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88121361A Withdrawn EP0322727A3 (en) | 1987-12-24 | 1988-12-21 | Character generator for a printer with a matrix print head |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0322727A3 (en) |
| DE (1) | DE3744263A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2997005B2 (en) | 1990-04-12 | 2000-01-11 | キヤノン株式会社 | Output device |
| FR2706655B1 (en) * | 1993-06-17 | 1995-08-25 | Gemplus Card Int | Method of controlling a printer to obtain postage. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0012806A1 (en) * | 1978-11-21 | 1980-07-09 | Olympia Werke Ag | Typewriter including a type carrier in an exchangeable cartridge |
| EP0181949A1 (en) * | 1984-11-14 | 1986-05-28 | Mannesmann Tally Ges. mbH | Printer, in particular a matrix printer |
| GB2193162A (en) * | 1986-08-01 | 1988-02-03 | Alps Electric Co Ltd | Dot printers |
-
1987
- 1987-12-24 DE DE19873744263 patent/DE3744263A1/en not_active Withdrawn
-
1988
- 1988-12-21 EP EP88121361A patent/EP0322727A3/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0012806A1 (en) * | 1978-11-21 | 1980-07-09 | Olympia Werke Ag | Typewriter including a type carrier in an exchangeable cartridge |
| EP0181949A1 (en) * | 1984-11-14 | 1986-05-28 | Mannesmann Tally Ges. mbH | Printer, in particular a matrix printer |
| GB2193162A (en) * | 1986-08-01 | 1988-02-03 | Alps Electric Co Ltd | Dot printers |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3744263A1 (en) | 1989-07-13 |
| EP0322727A2 (en) | 1989-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: AEG OLYMPIA OFFICE GMBH |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): CH DE FR GB IT LI |
|
| 17P | Request for examination filed |
Effective date: 19900228 |
|
| 17Q | First examination report despatched |
Effective date: 19910809 |
|
| 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: 19920612 |