US3167166A - Printing arrangement for high-speed teleprinters - Google Patents
Printing arrangement for high-speed teleprinters Download PDFInfo
- Publication number
- US3167166A US3167166A US100680A US10068061A US3167166A US 3167166 A US3167166 A US 3167166A US 100680 A US100680 A US 100680A US 10068061 A US10068061 A US 10068061A US 3167166 A US3167166 A US 3167166A
- Authority
- US
- United States
- Prior art keywords
- printing
- heads
- speed
- writing
- arrangement
- 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
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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
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
- B41J19/20—Positive-feed character-spacing mechanisms
-
- 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
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/54—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
Definitions
- the present invention relates to a printing arrangement for output devices and, more particularly, to highspeed teleprinters in which the printing element slides in a line-wise manner on the paper fixed in the horizontal direction.
- teleprinters or printing output devices for data-processing systems which are not intended to print a complete line at a time, usually comprise a carriage which is advanced in a step-by-step manner in the printing direction, and carries the printing elements (type bars, type wheels, or the like).
- This carriage when arriving at the end of the line, is returned as quickly as possible to the beginning of the line. This process is known as the carriage return.
- the difiiculty still exists of always having to interrupt the operation of the transmitter during the time of the carriage return, in order that no text of the message is lost.
- the transmitter when controlled e.g. by perforated tapes, is supposed to operate as continuously as possible. If a stoppage of the transmitter is impossible, then a number of blank signals (letters or space) have to be punched into the perforated tape containing the message, which number of blank signals corresponds to the time required by the carriage return. In producing the tape, however, this causes some difficulties or at least inconveniences. In any case the transmission path is not fully utilized on account of the non-operative times caused by the carriage return.
- FIG. 1 shows an arrangement designed in accordance with the state of prior art. This arrangement which operates on the screen-print principle permits the achievement of high printing speeds in the case of a continuous or step-by-step carriage movement.
- a printing head SK is mounted on a movable carriage. This head is capable of sliding from the left to the right over the paper in the printing direction, and from the end of the line back to the initial position.
- the printing head SK contains the printing elements which, in the described arrangement, consist of five needles. These needles are electromagnetically operated Bdfiifllhh Patented Jan. 26, 1965 and are selectively pressed against the paper, or it is possible to produce a spark discharge through the paper between the needles and the platen W; and it is also possible to change the color of the paper electrolytically by means of a passage of current.
- the shown arrangement also permits the carrying out of a xerographic or electrographiic operation.
- the five inscribing needles are controlled by the transistors T1 to T5. If, during the continuous forward movement of the printing head SK, a negative pulse is applied to a transistor via one of the terminals K1 to KS, then the associated needle will produce a pointer spot on the paper. By a column-wise setup of the characters an intelligible or readable print will appear in the conventional manner on the paper. In this connection it is necessary that coded pulses are applied in a suitable way to the transistors.
- a printing device in accordance with the invention, in which two printing heads move slidingly back and forth over the paper in a reciprocal movement in the same rhythm and within two adjoining partial sections which, together, form one length of a line.
- the two printing heads are controlled in such a way that they only print when being moved in the printing direction.
- FIG. 2 is a schematic of one embodiment of the invention.
- FIG. 3 is a diagram of the course of the speed as a function of the path of the writing head.
- FIG. 4 is the path-time diagram of the writing heads.
- FIG. 2 contains the two writing heads SKI and 8K2, both of which are rigidly connected to carriages S1 and S2.
- the carriages are moved back and forth, each over a halfwidth of the paper, by means of a spindle drive.
- the spindle drive consists of spindle shaft AW, which has two endless superimposed worm gears running to the left and to the right.
- Carriages S1 and S2 travel over the worm gears and are controlled in their direction of motion by shuttles Sfl and S72. These shuttles also reverse both carriages at the end of the worm gears.
- FIGS. 3 and 4 show the exact movements.
- the speedpath curve is shown in FIG. 3.
- SKT has also again reached the point 5:0 and has already reached the forward speed v From now on, 8K2 is slowed down and then accelerated in the opposite direction. This interplay repeats itself periodically for each new line.
- the path/time diagram shown in FIG. 4 results from what has just been set forth above.
- the writing-head drive arrangement shown in H6. 2 is only one of the possible embodiments. Drive mechanisms are conceivable that do not work with endless right and left worm gears but have only a simple worm gear on the drive shaft and by reversing the drive shaft move the writing heads alternately to the left and to the right. Drives operating over pull cords and the like are also conceivable. The only essential thing is that the movement of two writing heads in opposite directions is achieved.
- the writing heads need not necessarily move continuously, as in the example of FIG. 2. They may also be driven step-by-step for each letter.
- FIG. 2 also shows the electric drive of the writing needles.
- the control of the two uppermost needles of writing heads SK]. and S112 is shown. These two needles are connected to the collectors of transistors T2 and T3. Both transistors are controlled simultaneously by transistor T1 over resistances R3 and R5. Over terminal K1 and resistance R1, transistor T1 receives control pulses that represent the coding of the symbol about to be written.
- a bistable flip-flop consisting of trans stors T4 and T5.
- the collectors of transistors T4- and T 5 are connected across diodes DE and D2 to resistances Rd and R2.
- the circuit operates as follows:
- transistor T4 When transistor T4 is open, all control currents are shunted over resistance R5 to tl e general reference point and as a result transistor T3 is constantly blocked. During this time, however, transistor T5 is blocked and switched out of the base circuit of transistor T2 by diode D2. The transistor is thus free to conduct current in cadence with the control signals provided by transistor T1 and produces raster points on the paper through the uppermost writing needle of writing head 5K2.
- the electrical condition of the flip-flop indicates which of the two Writing heads is being controlled at the moment and which one is inoperative.
- a reversing arrangement is provided that allows the writing head that is advancing at the moment and has reached the constant speed v to print.
- a disk Ls is provided, driven by drive shaft AW over a notched belt Z.
- the reducing gear ratio between drive shaft and disk is so chosen that disk Ls makes one revolution while the writing heads complete one forward and return movement.
- Disk Ls has two holes that in passing electric bulb L let a light beam St through so that it can fall on photoelectric transistor PT and open it. The moment the light hits the photoelectric transistor and opens it, a positive pulse is sent across condenser C to the input of the flipilop consisting of transistors T4- and T5 and the flip-flop flips, causing a reversal in the action of the writing heads.
- Reversing the writing heads, which in accordance with FTG. 2 is done photoelectrically, can also be done differently. For example, it can be done by attaching two cams to disk Ls that actuate a contact mechanically in place of the photoelectric transistor.
- the position of writing heads SKI and 8K2 can be directly scanned, mechanically, photoelectrically, electrostatically or electrcmagnetically.
- writing heads with raster needles described in the embodiment can also be used.
- a printing arrangement for high-speed teleprinters comprising means for holding a record blank against linewise movement, two printing heads mounted for reciprocal linewise movement with respect to said record blank and respectively within two adjoining sections which together form one line length, means for simultaneously and reciprocally moving said heads within said sections in opposite directions, and control means for causing said heads to print on said record blank only when said heads are moving in the printing direction.
- a printing arrangement as defined in claim 1, in which the means for moving the printing heads comprises means for moving them at constant speed in the printing direction and for decelerating the speed at the point of reversal, accelerating the speed in the counter-printing direction to a speed greater than said constant speed, decelerating the speed again at the second point of reversal, and accelerating the speed again to said constant spee in the printing direction.
- control means comprises a flipdiop circuit, and means for causing said circuit to shift from one stable condition to the other depending on the positions of the printing 1 eads.
- a printing arrangement as defined in claim 3, in which the means for moving the printing heads comprises a rotatable shaft and the means for causing the flip-flop circuit to SLlft comprises a disk, means for rotating said disk at a predetermined speed with respect to said shaft, and means on said disk for causing said flip-flop circuit to shift at predetermined positions of said disk, the speeds of said shaft and disk being such that one rotation of the disk corresponds With one complete backward and ior- Ward movement of the printing heads.
- a printing arrangement as defined in claim 4, in which the means on the disk for causing the flip-flop circuit to shaft comprises a pair of diametrically spaced holes on said disk, a light source mounted in a fixed position on one side of said disk, light sensitive means mount- 6 ed in fixed position on the other side of said disk so as to receive li -ht from said source as said holes pass between said source and said light sensitive means, and means for connecting the output of said light sensitive means to said flip-flop circuit.
- a printing arrangement for high-speed teleprinters comprising means for holding a record blank against linewise movement, two printing means mounted for reciprocal linewise movement with respect to said record blank respectively Within two adjoining sections which together from one line length, means for simultaneously and reciprocally moving said printing means Within said sections in opposite directions, and control means for causing said printing means to print on said record blank only when said printing means are moving in the printing direction.
Landscapes
- Printers Characterized By Their Purpose (AREA)
- Character Spaces And Line Spaces In Printers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST16328A DE1138420B (de) | 1960-04-07 | 1960-04-07 | Druckvorrichtung fuer Fernschreiber, bei der zwei Schreibkoepfe zeilenweise vor dem in waagerechter Richtung feststehenden Papier gleiten |
Publications (1)
Publication Number | Publication Date |
---|---|
US3167166A true US3167166A (en) | 1965-01-26 |
Family
ID=7457028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US100680A Expired - Lifetime US3167166A (en) | 1960-04-07 | 1961-04-04 | Printing arrangement for high-speed teleprinters |
Country Status (7)
Country | Link |
---|---|
US (1) | US3167166A (da) |
BE (1) | BE616076Q (da) |
CH (1) | CH388677A (da) |
DE (1) | DE1138420B (da) |
FR (1) | FR1285817A (da) |
GB (1) | GB909050A (da) |
NL (1) | NL263314A (da) |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3292530A (en) * | 1964-11-05 | 1966-12-20 | Ibm | Print head controls causing overtravel of head at left end |
US3300017A (en) * | 1965-04-30 | 1967-01-24 | Sperry Rand Corp | Electrosensitive printing apparatus with print head continuously moved across paper |
US3406625A (en) * | 1966-02-18 | 1968-10-22 | Friden Inc | Driving means for high-speed printing apparatus |
US3429414A (en) * | 1967-04-24 | 1969-02-25 | Scm Corp | Printer with print hammer mounted on movable carriage |
US3541576A (en) * | 1967-07-12 | 1970-11-17 | Itt | Tellurium electrode printer |
US3599772A (en) * | 1969-04-30 | 1971-08-17 | Singer Co | Sinuous font arrangement for a printing means |
US3628645A (en) * | 1969-10-23 | 1971-12-21 | Ncr Co | Carriage drive mechanism |
DE2157836A1 (de) * | 1970-11-27 | 1972-06-08 | Burroughs Corp | Druckelementträgersteuerung für Druckwerke |
US3706367A (en) * | 1969-06-03 | 1972-12-19 | Olivetti & Co Spa | High speed serial printing device for typewriters, teleprinters, calculating machines, accounting machines and the like |
US3728962A (en) * | 1970-06-01 | 1973-04-24 | Gottscho Inc A | Marking apparatus for multi-lane web material |
US3736868A (en) * | 1972-03-01 | 1973-06-05 | Mohawk Data Sciences Corp | Apparatus for printing serially received data |
US3742846A (en) * | 1972-03-31 | 1973-07-03 | Ibm | Wire printer with print head moved in figure eight pattern |
US3752288A (en) * | 1971-02-18 | 1973-08-14 | Olivetti & Co Spa | Electrographic printer with plural oscillating print head |
US3810189A (en) * | 1972-07-03 | 1974-05-07 | Xerox Corp | Printing apparatus employing stepping motor control system |
US3811766A (en) * | 1969-03-10 | 1974-05-21 | Xerox Corp | Developing apparatus |
US3858703A (en) * | 1973-01-05 | 1975-01-07 | Centronics Data Computer | Bidirectional dual head printer |
US3874492A (en) * | 1972-05-31 | 1975-04-01 | Bosch Gmbh Robert | Line-writing apparatus with plural print heads in parallel rows |
DE2411509A1 (de) * | 1974-03-11 | 1975-04-10 | Perthen Johannes Dr Ing | Dokumentarisierendes oberflaechenmessgeraet |
US3882988A (en) * | 1973-08-06 | 1975-05-13 | Bunker Ramo | Mechanism for bi-directionally driving a print head |
JPS5081437A (da) * | 1973-11-12 | 1975-07-02 | ||
JPS5042676Y1 (da) * | 1969-11-06 | 1975-12-05 | ||
DE2640630A1 (de) * | 1975-09-09 | 1977-03-17 | Sci Systems Inc | Vorzugsweise elektrostatisch arbeitender nadeldrucker |
US4116567A (en) * | 1976-12-22 | 1978-09-26 | Okidata Corporation | Printer synchronization control for shuttle having non-uniform velocity |
US4123182A (en) * | 1976-05-17 | 1978-10-31 | Lrc, Inc. | Cam drive for matrix print heads and the like |
US4179223A (en) * | 1976-07-02 | 1979-12-18 | Bunker Ramo Corporation | Printer center sensing mechanism |
US5677719A (en) * | 1993-09-27 | 1997-10-14 | Compaq Computer Corporation | Multiple print head ink jet printer |
USD960648S1 (en) | 2020-12-16 | 2022-08-16 | Yeti Coolers, Llc | Container accessory |
US20230116239A1 (en) * | 2021-10-11 | 2023-04-13 | Comexi Group Industries, Sau | Printing machine for printing a laminar web |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1253496B (de) * | 1962-11-15 | 1967-11-02 | Helmut Groettrup Dipl Ing | Zwischenspeicher fuer Mosaikzeilendrucker |
DE1262053B (de) * | 1964-10-16 | 1968-02-29 | Philips Patentverwaltung | Elektromechanischer Seriendrucker |
US4195938A (en) * | 1977-02-09 | 1980-04-01 | Sycor, Inc. | Lateral position control means for data printer heads |
US4329693A (en) * | 1979-09-04 | 1982-05-11 | Kaye Instruments, Inc. | Method of and apparatus for data recording and the like |
DE3036644A1 (de) * | 1980-09-29 | 1982-05-13 | Siemens AG, 1000 Berlin und 8000 München | Elektrisches geraet mit schreibvorrichtung |
JP3391924B2 (ja) * | 1995-01-31 | 2003-03-31 | キヤノン株式会社 | 画像記録装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2802414A (en) * | 1954-10-13 | 1957-08-13 | Ibm | Wire printer |
US2911085A (en) * | 1957-07-01 | 1959-11-03 | Burroughs Corp | Wire printer with oscillatory print head |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR638644A (fr) * | 1927-07-25 | 1928-05-30 | Andre Citroen | Perfectionnements apportés aux machines à perforer les cartes de statistique et decomptabilité |
DE847024C (de) * | 1948-12-20 | 1953-12-21 | Siemens Ag | Blattschreiber fuer die Aufzeichnung von Schriftzeichen |
DE812438C (de) * | 1949-06-01 | 1951-08-30 | Siemens & Halske A G | Typenbild-Blattschreiber |
DE818811C (de) * | 1949-06-25 | 1951-10-29 | Siemens & Halske A G | Typenbild-Blattschreiber |
NL202956A (da) * | 1954-12-31 |
-
0
- NL NL263314D patent/NL263314A/xx unknown
-
1960
- 1960-04-07 DE DEST16328A patent/DE1138420B/de active Pending
-
1961
- 1961-03-30 GB GB11762/61A patent/GB909050A/en not_active Expired
- 1961-04-04 CH CH391161A patent/CH388677A/de unknown
- 1961-04-04 US US100680A patent/US3167166A/en not_active Expired - Lifetime
- 1961-04-07 FR FR858064A patent/FR1285817A/fr not_active Expired
-
1962
- 1962-04-06 BE BE616076A patent/BE616076Q/fr active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2802414A (en) * | 1954-10-13 | 1957-08-13 | Ibm | Wire printer |
US2911085A (en) * | 1957-07-01 | 1959-11-03 | Burroughs Corp | Wire printer with oscillatory print head |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3292530A (en) * | 1964-11-05 | 1966-12-20 | Ibm | Print head controls causing overtravel of head at left end |
US3300017A (en) * | 1965-04-30 | 1967-01-24 | Sperry Rand Corp | Electrosensitive printing apparatus with print head continuously moved across paper |
US3406625A (en) * | 1966-02-18 | 1968-10-22 | Friden Inc | Driving means for high-speed printing apparatus |
US3429414A (en) * | 1967-04-24 | 1969-02-25 | Scm Corp | Printer with print hammer mounted on movable carriage |
US3541576A (en) * | 1967-07-12 | 1970-11-17 | Itt | Tellurium electrode printer |
US3811766A (en) * | 1969-03-10 | 1974-05-21 | Xerox Corp | Developing apparatus |
US3599772A (en) * | 1969-04-30 | 1971-08-17 | Singer Co | Sinuous font arrangement for a printing means |
US3706367A (en) * | 1969-06-03 | 1972-12-19 | Olivetti & Co Spa | High speed serial printing device for typewriters, teleprinters, calculating machines, accounting machines and the like |
US3628645A (en) * | 1969-10-23 | 1971-12-21 | Ncr Co | Carriage drive mechanism |
JPS5042676Y1 (da) * | 1969-11-06 | 1975-12-05 | ||
US3728962A (en) * | 1970-06-01 | 1973-04-24 | Gottscho Inc A | Marking apparatus for multi-lane web material |
DE2157836A1 (de) * | 1970-11-27 | 1972-06-08 | Burroughs Corp | Druckelementträgersteuerung für Druckwerke |
US3752288A (en) * | 1971-02-18 | 1973-08-14 | Olivetti & Co Spa | Electrographic printer with plural oscillating print head |
US3736868A (en) * | 1972-03-01 | 1973-06-05 | Mohawk Data Sciences Corp | Apparatus for printing serially received data |
US3742846A (en) * | 1972-03-31 | 1973-07-03 | Ibm | Wire printer with print head moved in figure eight pattern |
US3874492A (en) * | 1972-05-31 | 1975-04-01 | Bosch Gmbh Robert | Line-writing apparatus with plural print heads in parallel rows |
US3810189A (en) * | 1972-07-03 | 1974-05-07 | Xerox Corp | Printing apparatus employing stepping motor control system |
US3858703A (en) * | 1973-01-05 | 1975-01-07 | Centronics Data Computer | Bidirectional dual head printer |
US3882988A (en) * | 1973-08-06 | 1975-05-13 | Bunker Ramo | Mechanism for bi-directionally driving a print head |
JPS5346618B2 (da) * | 1973-11-12 | 1978-12-15 | ||
JPS5081437A (da) * | 1973-11-12 | 1975-07-02 | ||
DE2411509A1 (de) * | 1974-03-11 | 1975-04-10 | Perthen Johannes Dr Ing | Dokumentarisierendes oberflaechenmessgeraet |
DE2640630A1 (de) * | 1975-09-09 | 1977-03-17 | Sci Systems Inc | Vorzugsweise elektrostatisch arbeitender nadeldrucker |
US4123182A (en) * | 1976-05-17 | 1978-10-31 | Lrc, Inc. | Cam drive for matrix print heads and the like |
US4179223A (en) * | 1976-07-02 | 1979-12-18 | Bunker Ramo Corporation | Printer center sensing mechanism |
US4116567A (en) * | 1976-12-22 | 1978-09-26 | Okidata Corporation | Printer synchronization control for shuttle having non-uniform velocity |
US5677719A (en) * | 1993-09-27 | 1997-10-14 | Compaq Computer Corporation | Multiple print head ink jet printer |
USD960648S1 (en) | 2020-12-16 | 2022-08-16 | Yeti Coolers, Llc | Container accessory |
US20230116239A1 (en) * | 2021-10-11 | 2023-04-13 | Comexi Group Industries, Sau | Printing machine for printing a laminar web |
US11850844B2 (en) * | 2021-10-11 | 2023-12-26 | Comexi Group Industries, Sau | Printing machine for printing a laminar web |
Also Published As
Publication number | Publication date |
---|---|
DE1138420B (de) | 1962-10-25 |
NL263314A (da) | |
FR1285817A (fr) | 1962-02-23 |
GB909050A (en) | 1962-10-24 |
CH388677A (de) | 1965-02-28 |
BE616076Q (nl) | 1962-07-31 |
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