US3854563A - Arcuate printer - Google Patents

Arcuate printer Download PDF

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Publication number
US3854563A
US3854563A US00373057A US37305773A US3854563A US 3854563 A US3854563 A US 3854563A US 00373057 A US00373057 A US 00373057A US 37305773 A US37305773 A US 37305773A US 3854563 A US3854563 A US 3854563A
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US
United States
Prior art keywords
pivot
arc
print head
light
printing
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
US00373057A
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English (en)
Inventor
R Cowardin
D Thomas
W Thorne
F Powell
W Pratt
G Matuck
C Mccray
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Priority to US00373057A priority Critical patent/US3854563A/en
Priority to IT22006/74A priority patent/IT1010175B/it
Priority to FR7415806A priority patent/FR2241414B1/fr
Priority to DE2422956A priority patent/DE2422956A1/de
Priority to CH657574A priority patent/CH563626A5/xx
Priority to BE144462A priority patent/BE815203A/xx
Priority to GB2366774A priority patent/GB1451565A/en
Priority to CA201,424A priority patent/CA1005782A/en
Priority to JP6301074A priority patent/JPS5322485B2/ja
Priority to NL7407744A priority patent/NL7407744A/xx
Priority to SU742033176A priority patent/SU828955A3/ru
Priority to ES427334A priority patent/ES427334A1/es
Priority to DD179428A priority patent/DD115245A5/xx
Application granted granted Critical
Publication of US3854563A publication Critical patent/US3854563A/en
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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/02—Platens
    • B41J11/04—Roller platens
    • 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
    • B41J19/00—Character- or line-spacing mechanisms
    • B41J19/16—Special spacing mechanisms for circular, spiral, or diagonal-printing apparatus
    • 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface

Definitions

  • the print head is disposed on a carriage which about a central point to describe an arcuate path, adjacent to which is situated an arcuate platen.
  • the media to be marked upon conforms to the arcuate 41 42 shape of the platen.
  • the print head oscillates or recip- 43; 346/104 rocates from one end of the arc to the other, and
  • the arcuate path length may be varied to en- Refe en e Cit d compass printing in one or more coplanar stations on UNITED STATES PATENTS an arc in the plane of the print head and pivot.
  • the linear type of printer has, as a consequence of its design, taken a relatively wide horizontal space always equal to, and usually greater than, the maximum width of the printed line, whether there be few or many characters in the printed line. This is not a desirable attribute in todays trend toward compactness, lightness, and generally streamlined design in business and commercial data handling equipment.
  • the horizontal or linear layout of traversing apparatuses in general requires such things as line shafts or extended runs of a lead screw or tractor tension cables and numerous pivots, bearings, and miscellaneous smaller parts at either end of the machinery to support and sustain the traversing apparatus.
  • Yet another object of this invention is to improve printing machine design by eliminating expensive highspeed bearings, high speed motors, and high power requirements necessary to achieve high-speed printing in some prior designs.
  • a final object of this invention is to simplify the construction and maintenance by improving the design reliability and eliminating unnecessary and unwanted complexity in the structure and in the synchronization of various coordinated elements making up the printer.
  • serial dot or serial character print head with a rotating or arcuately traveling carriage.
  • the carriage pivots about a central point, and printing occurs at the outer periphery or arc described by the moving print head against a curved platen backing up the media to be printed upon.
  • the print line length so provided is equal to a much greater horizontal run and can be confined to lie within a horizontal dimension less than that of the total line length.
  • the invention also makes possible the counter balancing of the print head to make it insensitive to shock and vibration introduced into the framework from outside the printer itself. Simplified position sensing and reduced power requirement are also realized due to the direct rotational motion between the main power drive input and the print head motion output.
  • FIG. 1 illustrates a partially cut-away pictorial view, in simplified form, of the preferred embodiment of the invention and clearly shows the major working elements.
  • FIG. 2 illustrates, in cross section, a preferred motion detector and quantizer as used in the preferred embodiment.
  • FIG. 1 the basic elements of a preferred embodiment of the invention, their arrangement and mode of operation will be discussed.
  • FIG. 1 the basic elements of a preferred embodiment of the invention, their arrangement and mode of operation will be discussed.
  • main pivot shaft 1 is shown in a partially cut-away view in its vertically mounted position.
  • Shaft 1 is driven by a gear 2 which is, in turn, driven from the gear 3 mounted on the end of a shaft connecting it to a speed reduction gear box connected to a drive motor 4.
  • Motor 4 turns continuously and provides output power through gear 3 to drive gear 2 at an angular velocity equal to that desired for the printing sweep.
  • Gear 2 turns freely on shaft 1 when it is not engaged by a clutch 5 to apply power to shaft 1.
  • Clutch 5 is not shown in detail in the figures but a preferred form of clutch 5 may be seen in the IBM Technical Disclosure Bulletin, Vol. 14, No. 2, July, 1971, pages 455-456 which, for purposes of description of a suitable clutch system for the preferred embodiment, is made a portion hereof.
  • the relatively slow rotating input from gear 2 is coupled by clutch 5 to the shaft 1 by pulling on the end of a spiral gripping spring in the clutch 5 which is of a type well-known and utilized in many spring clutches.
  • a solenoid not shown, is energized when print head motion is desired. The solenoid pulls on the end of the spring and causes engagement by wrapping of the spring onto the shaft and holds the clutch engaged until the solenoid is released.
  • the rotary input motion of gear 2 is connected to shaft 1 and to the elements mounted on shaft 1 to cause them to rotate at the angular velocity of gear 2.
  • Main support carriage 6 is mounted on the top of shaft 1 in a fixed orientation so that it will move whenever shaft 1 moves.
  • Carriage 6 supports print head 7 and counterweight 8.
  • the print head 7, which in the preferred embodiment is a wire matrix print head similar to the type shown in U.S. Pat. Nos. 3,108,534, 3,592,3ll and 3,672,482, (which for the purposes of describing an operative print head, are made a part hereof,) is disposed in a fixed position on carriage 6 and is held in place for example, by screws 9 on either side of the print head housing.
  • Nose portion 10 of print head 7 is placed in close proximity to the platen or platens ll, several of which are illustrated disposed around a circumferential path and in horizontal coplanar alignment with the nose 10 of print head 7.
  • Arcuate platens 11 are supported in the main frame 12 in a fixed position during printing as illustrated. Platens 11 may be longer or shorter, more numerous or fewer than those platens 11 illustrated.
  • wire matrix print head of any specific type be utilized as it is well-known that serial dot wire matrix print heads and serial whole character wire matrix print heads can be built and are available which could be equally utilized to advantage in the present embodiment of the invention.
  • electro discharge heads for printing on electrically sensitive paper such as is well-known in the art, or similarly wellknown heat sensitive paper and hot wire matrix devices could easily be utilized in place of the preferred wire matrix print head.
  • FIG. 1 three printing stations A, B, and C have been illustrated as utilized in the preferred embodiment to provide multiple copies of the same data.
  • This feature is desirable for use, for example, in a retail store environment where customer purchase receipts, a store record or journal list maintained in the machine, and a special document printing or franking station, (for example, for imprinting credit slips or checks) are all required to have information printed on them.
  • -A paper tape or document sheet 13 is shown at station B and would be wound onto a take-up roll 14 by suitable mechanisms not illustrated, with paper 13 being supplied from a supply roll not shown in FIG. 1.
  • the document 13 is driven by suitable means such as driving the take-up roll by a shaft 15 or by friction wheel drive 16 illustrated in printing stations A and C. Friction wheels 16 bear against one surface of paper or document in the station and force it upward or downward when the wheels are turned by suitable means such as a stepping drive or continuously turning motor driving a clutch system.
  • the backup platens 11 are preferably of a hard steel, such as Cu-Ni sintered steel of 7.1 specific gravity, but if another type of printing head such as an electro discharge head were utilized, it should be understood that cooperating platen of suitable design would be placed in position instead of the backup platen l l illustrated.
  • a dotted arrow 17 has not been illustrated on the top of counterweight 8 to show the direction of motion to be expected when clutch 5 is engaged. In this example, the counterweight and print head attached to carriage 6 would move in the counter clockwise direction upon energization of the clutch 5.
  • Counterweight 8 offsets the mass of the overhung carriage 6 and of the print head apparatus born on carriage 6 so that the totality of the elements attached to the end of drive shaft 1 are dynamically balanced against unwanted vibration or motion due to external shocks and movements.
  • Print head 7 will, therefore, maintain a steady and constant speed whenever clutch 5 is engaged.
  • Printing as is well-known to those familiar with any of the currently known wire matrix print heads, is accomplished by driving one or more of a plurality of fine wires outward against either a pressure sensitive document or against an ink carrying (or similar) marking material ribbon and against the document.
  • An alternative arrangement is to provide an inked platen 11 or other marking means disposed behind the document relative to the print head so that back printing is accomplished.
  • an ink impregnated ribbon is stored in a cassette (not shown) which is mounted on top of counterweight 8.
  • the cassette is utilized to feed a ribbon out of the cassette around the nose 10 of print head 7 and back into the cassette for storage with suitable drive means being provided to withdraw the ribbon from the cassette at one side and stuff it into the cassette at the opposite side.
  • a typical ribbon cassette of this type which may be utilized in the preferred embodiment is shown in U.S. Pat. application, Ser. No. 209,684, filed l2,-20,-7I.
  • print head 7 As print head 7 moves counter clockwise, it scans an arcuate path on which are disposed the various print stations A, B, and C as are illustrated. A continuous print path and continuous platen could be used, if desired. Some means must be provided for notifying the electronic system providing the wire matrix wire driving pulses that a specific location for printing has been reached.
  • FIGS. 1 and 2 Such a means is shown in FIGS. 1 and 2 and consists of an angular shaft position sensor or motion quantizer 18 which contains a light source 24 and a photo sensor 25 disposed on opposite sides of an interposer l9 having numerous apertures 20 and 21 disposed about its periphery.
  • the use of such optical position sensing systems is well-known in the art and need not be discussed in great detail.
  • the theory of operation is that light impinging on one side of interposer 19 shines through apertures as they move between the source of light and a photo sensor disposed on the opposite side of the interposer. Each time such an aperture passes between the source of light and the photo sensor, an electrical pulse is produced.
  • pulses may be counted by suitable counting means to determine, in relative numbers of steps corresponding to the placement of the apertures on the interposer 19, the relative position of the printing head along its printing path to any desired degree of accuracy.
  • Equivalent systems may utilize mark sensing optical means instead of light transmitting optical means, magnetic mark sensors, mechanical brushes or the like. It is, of course, well-known that either the source and sensor may move with the interposer fixed, or vice versa, since it is relative motion between the elements that is sensed.
  • a preferred embodiment utilizes a perforated interposer 19 carrying a plurality of finally spaced apertures 20 for producing pulses corresponding to character width distances traversed by the head.
  • Apertures 21, of somewhat larger size and of widely disposed location, are utilized to provide information for block positioning such as, in the preferred embodiment illustrated, notification to the system that that print head is located opposite the beginning of. a new scan at station A, station B or station C.
  • the block position signals correspond to the notches 21 and the large blank area 22 taken from the periphery of interposer 19.
  • Some means must also be provided for returning the print head and carriage back to the home or start position by reversing the rotation of drive shaft 1 when printing has been completed at the last station at which printing was desired.
  • this function is satisfied by the provision of a helical return spring 23 which stores energy as drive shaft 1 is coupled by clutch 5 to the gear 2 to drive the print head around its printing path in a counter clockwise direction. Then, when clutch 5 is finally released at the end of printing, spring 23 utilizes the energy stored in it to return and print head and counterweight by driving shaft 1 in the clockwise direction. Excessive rebound forces are taken up by providing a suitable dash pot or other damper means 24 in a position to contact carriage 6 as it returns to the home position opposite the end of station A.
  • Suitable anti-friction bearings 25 are also included at either end of the drive shaft 1 so that free rotation of the balanced system described can be attained.
  • interposer 19 is attached at one end of rotating main shaft 1 while the matrix print head 7, attached to its carriage 6, is rigidly affixed to the opposite end of shaft 1.
  • Shaft 1 was chosen for the attachment point of the interposer 19 because its angular rotation is relatively slow and because the print head 7 is firmly attached to the other end of the shaft, thus eliminating print position variations due to tolerances in the drive train and variations in the motor speed which could cause misreading of the exact head position relative to the position of the interposer 19.
  • interposer 19 has apertures that can be termed a grid and, in the preferred embodiment, the grid is made of etched metal, although it could be made of plastic, photographic film,
  • the grid on interposer 19 rotates in an arc of slightly over as the head accesses the three separate print stations shown.
  • the actual linear velocity at the tip 10 of the matrix print head is approximately 8.8 inches a second.
  • the surface velocity at the grid on interposer 19 is somewhat less because it is at a shorter radius from the center of shaft 1 than the tip 10 of print head 7.
  • the grid portion of interposer 19 has three groups of 30 slits each with a nominal width per slit of 0.02 inches.
  • the slits just named are denominated 20 in the figures and each slit corresponds to a timing mark for the beginning of a character printing cycle.
  • These slits are approximately 0.042 inches apart and are placed at a three inch radius from the center of shaft 1; the actual character spacing produced at the print head is 0.083 inches because of the greater radius at the tip of the print head which has approximately a 3 inch greater radius (a total of 6 inch radius approximately), and the grid was chosen at a 3 inch radius smaller than the radius of the print head tip to minimize weight and torque problems when the rotating shaft was returned to the rest position.
  • a second series of notches or slits 21 and an open space 22 on the interposer l9 determine the home position and the end of line position for each of the three print stations A, B, and C.
  • This section of the grid is placed at the outer periphery of the interposer 19 and is radially outside the character position grid of apertures 20.
  • the using or host electrical system requires that a home position be distinguished from the three end of line positions in this embodiment.
  • the notches 21 and the open space 22 are made so that two photo detectors 25, one for the grid of apertures 20 and one for notch or space 21, or 22, are activated only at the home position so that the home position can be distinguished from the three end of line positions indicated by notches 21.
  • pulses are produced due to the movement of the interposer which corresponds to each character spacing position and a separate pulse is produced by notches 21 and finally, a double pulse is produced by a proper placement of a final notch 21 and one of the apertures 20 so that two detectors will be on simultaneously when the head is in the home position illustrated in FIG. 1.
  • Photo detector 18 is a commercially available device (such as part No. 08-592 5-060, made by HE! Corp. of Chaska, Minn.) which has two light emitting diodes 24, specified as spaced .02 apart, which could as well be lamps, positioned on one side of a U-shaped block of material 18 and facing towards the opposite leg of the U. On the opposite side of the U is positioned a lense 26 to focus light from the light emitting diode onto a photo diode or photo cell which produces electrical pulses whenever light from the light emitting diode source passes through the interposer either through a slit or through one of the notches, and is focused by the lense onto the sensor.
  • a lense 26 to focus light from the light emitting diode onto a photo diode or photo cell which produces electrical pulses whenever light from the light emitting diode source passes through the interposer either through a slit or through one of the notches, and is focused by the lense onto the sensor.
  • the sensor gives a character timing pulse to the using host system for every 47 minutes and 45 seconds of arc traveled at the aforementioned radius and slit size. This are corresponds to approximately one pulse every 9.4 milliseconds at the speed of travel utilized in the preferred embodiment. These pulses are fed over an interface line to the controlling system which will then generate specific wire firing signals at every 0.9 milliseconds to generate proper characters by the repeated firing of the wires in the wire matrix print head 7 between character impulse signals from the detector 18. This, of course, assumes that a character is to be printed; the system connected to the printer will determine whether or not at a given character impulse signal from the detector 18, any character is to be printed at all.
  • characters may be printed on demand and one at a time or, as is more usually the case and generally more economical, a plurality of characters, usually enough to make up a line of printing, are stored in a buffer or electronic storage device until a full load of data for printing has been collected.
  • control electronics logic systems will begin emptying the contents of the buffer and simultaneously therewith will engage the print head drive system by energizing the clutch so that as each character position pulse is produced by the position sensor 18, the specific wire firing pattern to generate the desired character then exiting from the buffer can be produced and applied to the wire matrix print head driving circuits to generate the wire impacts for forming the character desired.
  • the return of the print head to the home position energizes two photo sensors as previously discussed whose combined and simultaneous signal is utilized by logic systems having a controlling system to which the printer is attached to signal that the print head is returned to the home position and is ready to begin printing a new line of data on command.
  • Data characters to be printed are then transmitted in serial dot form for each character as the print head moves and the sensor 18 detects the beginning of character printing positions as previously described.
  • the, same data is printed at one, two, or three stations and, in the normal mode of operation will print at stations A and B each time and station C only when a document to be printed upon has been inserted by hand into the printing area.
  • the bearings utilized in supporting the main shaft 1 and, although not shown, the shaft on which drive gear 3 is mounted, and further, in the reduction unit supplied with motor 4, all may be of an inexpensive, nonprecision type due primarily to the low stresses imposed on them due to the nature of the design. Specifically, since the motor is continually operating, loads of great magnitude are not presented and stresses are basically low at the motor shaft and throughout the gear train because the matrix print head 7 is relatively light in weight and is counter balanced by counterweight 8 so that only the rotational inertia of the system must be overcome in addition to the slight rewind torque necessary to store up sufficient energy in spring 23.
  • the output speed delivered by gears 2 and 3 to shaft 1 through clutch 5 would, if the print head mechanism were allowed to rotate through a full 360, be at a speed of only about 13 RPM and thus the main bearings 25 which support shaft 1 need not be of a special high speed or heavy duty design.
  • motor 4 need not be a large size motor since, at the reduced RPM output finally transmitted to shaft 1, very little force is required in the form of torque to accelerate the print mechanism and to store energy in spring 23.
  • clutch 5 although it is of a specialized design as pointed out in the referenced IBM Technical Disclosure Bulletin, has low wear characteristics due to the fact that little slippage is experienced and stresses imposed on the clutch parts are quite low due to the low speed and the low force requirements produced in accelerating the print head and mechanism as described.
  • the print head and photo sensor relationship is a direct one-to-one motion control which, due to the fact that the position sensor is fixed and the interposer and the print head are both affixed at relative spacing to the ends of a rigid shaft,'creates an exceedingly accurate position sensing device which is not affected by backlash and manufacturing tolerances. Adjustment of the relative position of the interposer and the print head may be accomplished simply by means of a set screw affixing either element to the drive shaft 1.
  • Media marking apparatus comprising:
  • At least one mark producing means for making visible marks on a medium at least one mark producing means for making visible marks on a medium
  • support means for supporting said mark producing means in proximity to a medium to be marked and in a position to make a mark when said mark producing means is operated;
  • pivot means mounted at a fixed radial distance from said medium and supported in bearings for rotation about the central axis of said pivot, said axis being perpendicular to the radius establishing said radial distance;
  • said support means supporting said mark producing means being rigidly affixed to said pivot for rotation therewith to traverse an arc of a circle having its center on the axis of said pivot;
  • At least one arcuate platen means for supporting said medium at said fixed radial distance from said pivot in a position to be marked upon by said mark producing means while it traverses said arc, said arc of said platen means being cylindrical and having its axis coincident with said axis of said pivot means;
  • motion sensing and quantizing means for indicating the rotation of said pivot and for signalling the relative amount of travel along said arc taken by said support means and said mark producing means in response to said drive means.
  • said mark producing means comprises a wire matrix printing mechanism
  • said return drive means comprises a resilient, stressed helical spring connected at one end to a fixed point relative to said pivot and at the other end connected to said pivot and encircling it, thereby applying a return torque to said pivot.
  • a counterweight affixed to said support means in a position to counter balance said printing mechanism and said support so that the center of gravity of the assemblage so produced lies approximately on the central axis of said pivot.
  • said motion sensing and quantizing means comprises a source of light, a sensor positioned relative to said source of light, a sensor positioned relative to said source of light to receive light therefrom, and an interrupter means having alternate light transmissive and opaque areas.
  • said interrupter is adapted to be moved by the motion of said pivot to interrupt the flow of light from same.

Landscapes

  • Character Spaces And Line Spaces In Printers (AREA)
  • Impact Printers (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Handling Of Sheets (AREA)
  • Printers Characterized By Their Purpose (AREA)
US00373057A 1973-06-25 1973-06-25 Arcuate printer Expired - Lifetime US3854563A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US00373057A US3854563A (en) 1973-06-25 1973-06-25 Arcuate printer
IT22006/74A IT1010175B (it) 1973-06-25 1974-04-29 Stampatrice ad impatto perfezio nata
FR7415806A FR2241414B1 (es) 1973-06-25 1974-04-29
DE2422956A DE2422956A1 (de) 1973-06-25 1974-05-11 Drucker
CH657574A CH563626A5 (es) 1973-06-25 1974-05-14
BE144462A BE815203A (fr) 1973-06-25 1974-05-17 Dispositif d'impression
GB2366774A GB1451565A (en) 1973-06-25 1974-05-28 Media marking apparatus
CA201,424A CA1005782A (en) 1973-06-25 1974-05-31 Serial printer having an arcuate platen
JP6301074A JPS5322485B2 (es) 1973-06-25 1974-06-05
NL7407744A NL7407744A (es) 1973-06-25 1974-06-10
SU742033176A SU828955A3 (ru) 1973-06-25 1974-06-14 Дуговое печатающее устройство
ES427334A ES427334A1 (es) 1973-06-25 1974-06-17 Dispositivo impresor.
DD179428A DD115245A5 (es) 1973-06-25 1974-06-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00373057A US3854563A (en) 1973-06-25 1973-06-25 Arcuate printer

Publications (1)

Publication Number Publication Date
US3854563A true US3854563A (en) 1974-12-17

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ID=23470730

Family Applications (1)

Application Number Title Priority Date Filing Date
US00373057A Expired - Lifetime US3854563A (en) 1973-06-25 1973-06-25 Arcuate printer

Country Status (13)

Country Link
US (1) US3854563A (es)
JP (1) JPS5322485B2 (es)
BE (1) BE815203A (es)
CA (1) CA1005782A (es)
CH (1) CH563626A5 (es)
DD (1) DD115245A5 (es)
DE (1) DE2422956A1 (es)
ES (1) ES427334A1 (es)
FR (1) FR2241414B1 (es)
GB (1) GB1451565A (es)
IT (1) IT1010175B (es)
NL (1) NL7407744A (es)
SU (1) SU828955A3 (es)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949851A (en) * 1975-01-24 1976-04-13 Victor Comptometer Corporation Motion translation means for high speed printer print head
US3970183A (en) * 1974-06-05 1976-07-20 Centronics Data Computer Corporation Random access line printer
JPS51104921A (ja) * 1975-03-10 1976-09-17 Omron Tateisi Electronics Co Dotsutopurinta
FR2307656A1 (fr) * 1975-04-19 1976-11-12 Anker Werke Ag Mecanisme imprimeur comportant au moins une tete imprimante et plusieurs emplacements d'impression disposes en cercle
US4034842A (en) * 1974-05-10 1977-07-12 Ing. C. Olivetti & C., S.P.A. Arrangement for driving a printing head along a printing line
US4053040A (en) * 1975-10-20 1977-10-11 Mcgourty Thomas K Serial wire matrix printer
FR2426569A1 (fr) * 1978-05-26 1979-12-21 Kienzle Apparate Gmbh Dispositif d'impression avec une tete d'impression mobile
US4195936A (en) * 1977-10-28 1980-04-01 Sci Systems, Inc. Rotary printer and rotor structure
US4531132A (en) * 1983-10-27 1985-07-23 Ncr Corporation Method and apparatus for thermally printing data in special fonts on documents like checks
US5475412A (en) * 1994-02-28 1995-12-12 Hewlett-Packard Company Sheet media marking system
WO2000005074A1 (de) * 1998-07-23 2000-02-03 Wincor Nixdorf Gmbh & Co Kg Druckvorrichtung mit mindestens zwei räumlich voneinander getrennten arbeitsbereichen
EP1120271A1 (de) * 2000-01-27 2001-08-01 Wincor Nixdorf GmbH & Co KG Druckvorrichtung
US6412995B2 (en) * 2000-01-28 2002-07-02 Oki Data Corporation Printing apparatus and platen with a plurality of impact surfaces
US20040239720A1 (en) * 2003-06-02 2004-12-02 Clarke Leo C. Printhead positioning mechanism
US20060077224A1 (en) * 2004-10-12 2006-04-13 Clarke Leo C Printing apparatus and method

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2124847A5 (es) * 1970-09-14 1972-09-22 Akimoto Yasusada
DE2418632C3 (de) * 1974-04-18 1981-10-01 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren und Vorrichtung zum elektrostatischen Drucken
DE2506632C2 (de) * 1975-02-17 1982-05-19 Control Commerce AG, Ilanz, Graubünden Druckwerk mit mehreren Nadeldruckköpfen für Computer
JPS5833821B2 (ja) * 1976-11-15 1983-07-22 エプソン株式会社 プリンタ
US4591281A (en) * 1984-11-08 1986-05-27 Howtek, Inc. Sheet-feed mechanism for rotary print head
DE3526284A1 (de) * 1985-07-23 1987-02-05 Fritz Schaupp Druckvorrichtung zum beschriften von anhaengern

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Cited By (20)

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Publication number Priority date Publication date Assignee Title
US4034842A (en) * 1974-05-10 1977-07-12 Ing. C. Olivetti & C., S.P.A. Arrangement for driving a printing head along a printing line
US4285606A (en) * 1974-05-10 1981-08-25 Ing. C. Olivetti & C., S.P.A. Arrangement for driving a printing head along a printing line
US3970183A (en) * 1974-06-05 1976-07-20 Centronics Data Computer Corporation Random access line printer
US3949851A (en) * 1975-01-24 1976-04-13 Victor Comptometer Corporation Motion translation means for high speed printer print head
JPS51104921A (ja) * 1975-03-10 1976-09-17 Omron Tateisi Electronics Co Dotsutopurinta
FR2307656A1 (fr) * 1975-04-19 1976-11-12 Anker Werke Ag Mecanisme imprimeur comportant au moins une tete imprimante et plusieurs emplacements d'impression disposes en cercle
US4053040A (en) * 1975-10-20 1977-10-11 Mcgourty Thomas K Serial wire matrix printer
US4195936A (en) * 1977-10-28 1980-04-01 Sci Systems, Inc. Rotary printer and rotor structure
FR2426569A1 (fr) * 1978-05-26 1979-12-21 Kienzle Apparate Gmbh Dispositif d'impression avec une tete d'impression mobile
US4531132A (en) * 1983-10-27 1985-07-23 Ncr Corporation Method and apparatus for thermally printing data in special fonts on documents like checks
US5475412A (en) * 1994-02-28 1995-12-12 Hewlett-Packard Company Sheet media marking system
WO2000005074A1 (de) * 1998-07-23 2000-02-03 Wincor Nixdorf Gmbh & Co Kg Druckvorrichtung mit mindestens zwei räumlich voneinander getrennten arbeitsbereichen
EP1120271A1 (de) * 2000-01-27 2001-08-01 Wincor Nixdorf GmbH & Co KG Druckvorrichtung
US6412995B2 (en) * 2000-01-28 2002-07-02 Oki Data Corporation Printing apparatus and platen with a plurality of impact surfaces
US20040239720A1 (en) * 2003-06-02 2004-12-02 Clarke Leo C. Printhead positioning mechanism
WO2004108421A1 (en) * 2003-06-02 2004-12-16 Hewlett-Packard Development Company, L.P. Printhead positioning mechanism
US6896355B2 (en) 2003-06-02 2005-05-24 Hewlett-Packard Development Company, Lp. Printhead positioning mechanism
US20060077224A1 (en) * 2004-10-12 2006-04-13 Clarke Leo C Printing apparatus and method
WO2006044071A1 (en) * 2004-10-12 2006-04-27 Hewlett-Packard Development Company, L.P. Printing apparatus and method
US7377617B2 (en) 2004-10-12 2008-05-27 Clarke Leo C Printing apparatus and method

Also Published As

Publication number Publication date
FR2241414B1 (es) 1976-06-25
JPS5023934A (es) 1975-03-14
GB1451565A (en) 1976-10-06
FR2241414A1 (es) 1975-03-21
CA1005782A (en) 1977-02-22
CH563626A5 (es) 1975-06-30
JPS5322485B2 (es) 1978-07-08
ES427334A1 (es) 1976-07-16
NL7407744A (es) 1974-12-30
SU828955A3 (ru) 1981-05-07
DD115245A5 (es) 1975-09-12
DE2422956A1 (de) 1975-01-16
IT1010175B (it) 1977-01-10
BE815203A (fr) 1974-09-16

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