EP0186126B1 - Druckvorrichtung für die Erzeugung automatisch lesbarer Schriften auf Belegen - Google Patents

Druckvorrichtung für die Erzeugung automatisch lesbarer Schriften auf Belegen Download PDF

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Publication number
EP0186126B1
EP0186126B1 EP85116185A EP85116185A EP0186126B1 EP 0186126 B1 EP0186126 B1 EP 0186126B1 EP 85116185 A EP85116185 A EP 85116185A EP 85116185 A EP85116185 A EP 85116185A EP 0186126 B1 EP0186126 B1 EP 0186126B1
Authority
EP
European Patent Office
Prior art keywords
type wheel
spokes
type
spoked
characters
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
EP85116185A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0186126A3 (en
EP0186126A2 (de
Inventor
Horst Dyma
Armin Heindke
Dieter Engel
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.)
Digital Kienzle Computersysteme GmbH and Co KG
Original Assignee
Mannesmann Kienzle 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 Mannesmann Kienzle GmbH filed Critical Mannesmann Kienzle GmbH
Priority to AT85116185T priority Critical patent/ATE65461T1/de
Publication of EP0186126A2 publication Critical patent/EP0186126A2/de
Publication of EP0186126A3 publication Critical patent/EP0186126A3/de
Application granted granted Critical
Publication of EP0186126B1 publication Critical patent/EP0186126B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to a spoke type wheel printing device for the generation of automatically readable fonts on documents with on the spokes of the spoke type wheel, centrally arranged types with a stop device for the spokes or types and with a stepper motor for the rotary adjustment of the spoke type wheel in the correct printing position and one Transport means drive stepper motor to move the document to generate the character spacing.
  • stepper motors can be controlled with the help of a so-called microstep control so that they do not only in larger individual steps move, but that each individual step is divided into a plurality of microsteps, it being possible to arrange the arrangement so that each individual step is divided into two, four or even six microsteps.
  • This is achieved by winding currents, which take an approximately sinusoidal shape through the aforementioned micro-step control, but it is possible to hold the current in the winding in such a way that a corresponding holding torque results for the part driven by the stepper motor.
  • the stepper motors controlled by a micro-stepper control essentially work like a normal stepper motor that moves its load in single steps, with the only difference that each individual step is divided into several micro-steps, the number of micro-steps being selectable according to the design of the circuit.
  • a receipt printer is known (EP-B1-0 019 080), in which the receipt is moved in the lateral direction along a stop.
  • a multi-line printing with the known receipt printer which is equipped as a type printing unit, could at best be carried out here by moving the type carrier.
  • the known receipt printer provides for continuous transportation of the receipt. In the case of discontinuous transport, the type wheel would have to be stopped at every type pressure.
  • Spoke type wheel printing devices are also known (DE-A1-31 32 282 and DE-A1-25 04 097), which have types arranged in the center of the spokes, with the procedure for printing the type wheel carriages being based on the necessary distance therefrom. However, this does not show how to proceed with right or left-aligned printing of the types or with type wheels that require a different character spacing.
  • the object of the invention is therefore to avoid undue stress on the type spokes, i. H. increase the life of the spokes and allow the use of type wheels that have either the same or different spacing of the spokes.
  • the invention has also set itself the task of improving a spoke type carrier in such a way that different types with different dimensions can be printed with the same control means.
  • the known printing device is characterized in that Both when twisting a spoke type wheel with even division of the spokes over the circumference of the spoke type wheel and when using a spoke type wheel with uneven division of the spokes over the circumference of the spoke type wheel, the asymmetrical types to be printed left-justified or right-justified in a defined field centered on the Spokes are arranged so that the document is moved in micro-increments by different character spacings by the stepping motor driving the means of transport in such a way that, despite the central arrangement of the types on the spokes, a left or right-aligned print is achieved, and that when using a spoke type wheel with a non-uniform pattern Division of the spokes over the circumference of the spoke type wheel, in addition, the stepper motor for the rotating adjustment of the spoke type wheel brings the spoke type wheel into the correct printing position in micro steps.
  • An improvement of the above solution is that different types of types are arranged on spokes with different pitches, as seen on the circumference of the wheel.
  • This invention is further improved in that the pitch of the spoke type wheel is adapted to the characters to be printed.
  • the printing device consists of a spoke type wheel 1 which carries 12 individual type heads 2 at the ends of its spokes.
  • the spoke type wheel 1 is fastened by means of its hub 3 to an axle 4 which is driven by a motor M.
  • This motor is a stepper motor.
  • the type heads 2 are shot down by bending their spokes 12 by a drive magnet 5 and a corresponding stop hammer 6 against an ink ribbon 7 and a document 8, wherein they are pressed against a printing pad 9. The document rests on a stop 13.
  • the document 8 is driven by a conveyor belt 9a, which is driven by a further stepper motor SM (FIG. 4).
  • the pressure rollers 10 and 11 act on the one hand on the belt 9 and on the other hand on the document 8 and ensure that the document 8 is held between the rollers 11 and the transport belt 9. As soon as one of the pressure rollers 10 or 11 is pivoted away, the document is no longer transported, i. H. released for removal or transfer to other means of transport.
  • both the motor M which generates the rotational movement for the spoke type wheel 1
  • the motor SM which causes the transport movement of the document 8 via the belt 9
  • One or both motors are equipped with a microstep control according to FIG. 4 equipped.
  • the microstep control To which of the stepper motors (the rotary motor M according to FIG. 1 or the transport motor SM according to FIG. 2) the microstep control is connected depends on the design of the spoke type wheel, as will be described in more detail below.
  • types "1" and "5" are arranged on the left side of the type head 2, as can be seen from FIGS. 2D and 2E results, so that the types are printed right-justified when they are printed in the corresponding printing point.
  • a print sample of the font E13B is shown in FIG. 6. From FIG. 2C this shows how the type head 2 of each spoke 12 is designed.
  • Type 14 is on the front and a directional nose 15 on the back. The nose 15 interacts with the stop hammer 6.
  • the stop hammer 6 is provided with a corresponding alignment recess 16.
  • the left side of the type head 2 hits the document 8 rather than the right side, which results in a twisting of the spoke 12, which has an adverse effect on the service life of this spoke.
  • the print quality is poor in this case because the right side of the type head 2 is moved further by the hammer 6, while the left side has already found its stop on the document 8. It can therefore not be avoided that the left side of the type may not be printed as neatly as would be necessary for a correct reading of the documents, so that rejections of the documents occur more frequently.
  • FIG. Figure 2A shows centered on the type head. This avoids twisting of the spoke 12 and at the same time ensures a clean impression.
  • the motor SM has two windings W1 and W2, which are energized sinusoidally in the corresponding phase angle to achieve the transport steps. It does not matter whether this is the windings W1, W2, of the motor SM which effects the transport control, or is the motor M which causes the type carrier to rotate.
  • the motor which is supposed to bring about the correct setting of the type 2 and the document 8 relative to one another, is in any case equipped with the microstep control according to FIG. 4 equipped.
  • the FIG. 4 shows a block diagram of the microstep control for the stepper motors.
  • the microprocessor MP is connected via data output lines L 1 and L 2, which are assigned to the individual windings of the stepping motor W 1 and W 2, with two digital / analog converters D / A 1, D / A 2.
  • the output signals of the digital / analog converter D / A1 and D / A2 are supplied via power stages V1 and V2 to the windings W1 and W2 of the stepper motor SM or the motor M.
  • the microprocessor MP generates digital signals which correspond to the digitized sine curve according to FIG. 5 correspond. As can be seen from FIG. 5 recognized, both windings W1 and W2 receive a 90 ° shifted sinusoidal current, which is however divided into individual steps.
  • each full step of the motor SM is divided into eight digitized step patterns, the windings W 1 and W 2 each receiving the corresponding current signals with the correct amplitude at the same time. If, for example, a half wave is divided into eight micro steps, then four micro steps must be covered between the zero point of the sine curve and the maximum, which are represented by corresponding digital signals from the microprocessor MP. For example, in the embodiment shown in FIG. 5 given example in the initial stage of the microprocessor for the winding W1 the digital signal "4" was output, while for the winding W2 the digital signal "0" was being output.
  • step-by-step mode the digital signals from the microprocessor on the lines L 1 and L 2 would then change by the digital signal "5" for the winding W 1, the digital signal "1" would be output for the winding W 2, etc., until both windings go through a full step to have.
  • microstep control in the sense of the invention: different fonts are not always of the same size and the print divisions of the individual fonts do not necessarily have to be the same.
  • the microstep control can provide valuable help, as can be seen from a description of FIG. 3 should be made clear.
  • Three groups of type heads 2 - 20, 21 and 22 can be seen here.
  • the division of the arrangement of type heads 2 is unequal to one another. For example, it behaves like 2: 3.
  • the type wheel 1 would have to carry out a macro step or even eight microsteps for an arrangement of the type heads 2 in order to print two characters lying next to one another in an arrangement as provided in group 20, as shown in group 22, but for example 1.5 macro steps or 12 micro steps.
  • the type arrangement according to group 21 shows yet another possibility. It has been shown time and again that the types often have very different sizes, for example a dot is a very small type, whereas many letter types or symbols have to be printed, which take up much more space.
  • micro-stepping the spoke type wheel 1 on the same type wheel to include types with different pitches within a type set. With the help of the micro step control, it is possible at any time to print such types in the correct printing positions.

Landscapes

  • Character Spaces And Line Spaces In Printers (AREA)
  • Record Information Processing For Printing (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Document Processing Apparatus (AREA)
  • Printers Characterized By Their Purpose (AREA)
EP85116185A 1984-12-24 1985-12-18 Druckvorrichtung für die Erzeugung automatisch lesbarer Schriften auf Belegen Expired - Lifetime EP0186126B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85116185T ATE65461T1 (de) 1984-12-24 1985-12-18 Druckvorrichtung fuer die erzeugung automatisch lesbarer schriften auf belegen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3447430 1984-12-24
DE3447430A DE3447430A1 (de) 1984-12-24 1984-12-24 Druckvorrichtung fuer die erzeugung automatisch lesbarer schriften auf belegen

Publications (3)

Publication Number Publication Date
EP0186126A2 EP0186126A2 (de) 1986-07-02
EP0186126A3 EP0186126A3 (en) 1988-04-27
EP0186126B1 true EP0186126B1 (de) 1991-07-24

Family

ID=6253918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85116185A Expired - Lifetime EP0186126B1 (de) 1984-12-24 1985-12-18 Druckvorrichtung für die Erzeugung automatisch lesbarer Schriften auf Belegen

Country Status (6)

Country Link
US (1) US5040910A (xx)
EP (1) EP0186126B1 (xx)
JP (1) JPS61118751U (xx)
AT (1) ATE65461T1 (xx)
DE (2) DE3447430A1 (xx)
ES (1) ES8703110A1 (xx)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2504097A1 (de) * 1974-09-25 1976-04-15 Xerox Corp Druckrad mit auf proportionalem abstand voneinander angeordneten zeichen
DE3132282A1 (de) * 1981-08-14 1983-02-24 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zum darstellen von silben der koreanischen schrift

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3636429A (en) * 1970-05-08 1972-01-18 Ibm Logic circuitry for providing stopping control for stepping motors
DE2420165C3 (de) * 1974-04-25 1981-05-14 Pitney Bowes Deutschland Gmbh, 6148 Heppenheim Papiertransporteinrichtung
IT1016590B (it) * 1974-07-15 1977-06-20 Olivetti & Co Spa Disco portacaratteri a lamine fles sibili per un dispositivo di scrit tura e procedimento per la sua fab bricazione
DE2608754C2 (de) * 1976-03-03 1982-10-14 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum teilungsgenauen Positionieren eines Schreibwagens in Fern- oder Datenschreibmaschinen
US4189246A (en) * 1977-12-22 1980-02-19 International Business Machines Corporation Variable print-hammer control for on-the-fly-printing
JPS54110735A (en) * 1978-02-20 1979-08-30 Ricoh Co Ltd Printer control system
US4203675A (en) * 1978-08-28 1980-05-20 Ncr Canada Ltd. - Ncr Canada Ltee Pressure printer
DE2914968A1 (de) * 1979-04-12 1980-10-30 Pixa Joachim W Einrichtung zum bedrucken von belegen
JPS56150555A (en) * 1980-04-25 1981-11-21 Shinko Seisakusho:Kk Printing method for impact printer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2504097A1 (de) * 1974-09-25 1976-04-15 Xerox Corp Druckrad mit auf proportionalem abstand voneinander angeordneten zeichen
DE3132282A1 (de) * 1981-08-14 1983-02-24 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zum darstellen von silben der koreanischen schrift

Also Published As

Publication number Publication date
DE3447430A1 (de) 1986-06-26
ATE65461T1 (de) 1991-08-15
DE3447430C2 (xx) 1990-01-04
ES8703110A1 (es) 1987-02-16
EP0186126A3 (en) 1988-04-27
DE3583596D1 (de) 1991-08-29
ES550290A0 (es) 1987-02-16
EP0186126A2 (de) 1986-07-02
US5040910A (en) 1991-08-20
JPS61118751U (xx) 1986-07-26

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