US3845709A - Multifont selection - Google Patents
Multifont selection Download PDFInfo
- Publication number
- US3845709A US3845709A US00335862A US33586273A US3845709A US 3845709 A US3845709 A US 3845709A US 00335862 A US00335862 A US 00335862A US 33586273 A US33586273 A US 33586273A US 3845709 A US3845709 A US 3845709A
- Authority
- US
- United States
- Prior art keywords
- font
- indicia
- belt
- timing
- counter
- 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
- B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
- B41J1/20—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on endless bands or the like
Definitions
- Gardiner 145 Nov. 5, 1974 MULTIFONT SELECTION 1605.610 9/1971 McDowell et 111. 101/111 [75] Inventor: Arthur J Gardiner Sudbury Mass 1605,1113 9 1971 DePuy et al. 101/111 [73] Assignec: lomec Corporation, Southboro, Primary Examine1-Robcrt E. Pulfrey Muss. Assistant ExaminerEdward M. Coven [22] Filed: Feb. 26, 1973 Attorney, Agent, or FirmDaniel M. Rosen 1211 Appl. No.1 335,862 1571 ABSTRACT 1 A high speed printer employing an automatic font se- 152] U.S.'Cl..
- 101/93 C 101/111 lection activated y coded ind n a ont nu s [51] 1111.
- P/mvr 16 HAMMER MULTIFONT SELECTION This invention relates to high speed printers and, more particularly, to automatic multifont selection employable with such high speed printers.
- High speed printers such as the type to be described herein typically employ an endless type carrier coacting with a plurality of a number of sets of hammers, one hammer for each character position along a line and a hammer driver for each set of hammers which is timeshared among the hammers of a set.
- lmpact line printers typically may be characterized by moving endless print carriers having a number of characters etched, engraved, embossed or otherwise formed on or attached to the carrier surface coacting with a print hammer at each character position on a line so as to effect printing on a print medium such as paper or the like.
- Storage, control and timing circuitry are utilized to accurately actuate a particular hammer at the precise time a character desired is to be printed and a character is in registration with that position.
- Ahigh speed printer operable in accordance with the foregoing general description is described with greater particularity in-U.S. Pat. No. 3,795,186, by Robert H. Curtis et al and assigned to the predecessor in interest of the assignee of the present invention.
- hammer firing must be precisely timed to impact characters at their proper position in order to prevent ghosting, smud gin g, misregistration of printed characters and the like.
- the hammer drive circuits must deliver extremely accurate actuation pulses precise in rise time, duration and magnitude.
- such pulses must be most accurately timed to actuate the hammer precisely as printing is required.
- lt is conventional in printers, however, to employ various types of fonts for printing. Obviously, where character sizes and sets change from type belt to. type belt, a variation in the timing of the control circuitry actuating the print hammers must be effected in order to more precisely select the timing necessary to correspond to a particular font belt.
- the object of the presentinvention to provide an arrangement for use in a high speed line printer which will permit the automatic selection of timing and triggering to occur in response to changing the font belt.
- the foregoing objects are effected by locating a first and second set of indicia on the font belt coded in aca 2 cordance with the size of the particular font set located on that belt.
- a sensor mechanism is adapted to transduce the plurality of indicia to provide a coded signal.
- a decoding circuit is responsive to the coded signal for selecting one of a plurality of font speed timing circuits which, in turn, control the timing to the hammer drive circuits.
- FIGURE illustrates a logic diagramshowingthe interrelationship of the components of the present invention with a dual indicia belt.
- a font belt 101 is illustrated having a font set 12 located thereon. Directly beneath the font set on the font belt is a first plurality of primary indicia l4 and a second plurality of secondary indicia l6. Relationship between the indicia l4 and the indicia 16 are indicative of the nature of the character font provided in the area 12. Thus, as shown in the FIGURE, the font belt 10 includes a group of secondary indicia 14 for every primary indicia 16. The primary/secondaryrelative position is, therefore, a coded representation of the particular font size contained within the segment l2.
- the type belt 10 may be formed of a single loop of steel having a homogeneous characteristic with raised letters and indicia, formed in a well known manner andas illustrated in greater detail in co-pending application, Ser. No. 857,507 filed Sept. 12, 1969 by Richard Holzman, et al and assigned to the predecessor in interest of the assignee of the present invention.
- sensors Band 20 Cooperating with the steel belt for sensing the primary and secondary indicia are sensors Band 20.
- the sensors 18 and 20, which may be magnetic in nature, operate to sense the raised area corresponding to the indicia 16 and 14 for providing anappr opriate signal therefrom.
- a suitable form of sensor which may be utilized in conjunction with the present invention is illustrated in copending application, Ser. No. 857,506 filed Sept. 12, I969 by Robert H. Curtiss and assigned to the predecessor in interest of the assignee of the present invention.
- the output derived from the transducers l8 and 20 are coupled to a counter 22 which is, in turn, coupled to a decoding unit 24.
- the output of the transducersl8 and 20 are also coupled to a character generator 26 which is in turn coupled to a comparator 28.
- Data input is applied along line 30 to a memory 32, and, in turn, supplied to the same comparator 283.
- the output of the comparator 28 is supplied along a line 34'toa drive control circuit 36.
- the drive control circuit receives outputs from one of a plurality of selected font timing circuits indicated as 38, 40, and 42 respectively.
- the present invention provides for changing of this timing in accordance with the variation of the character sets employed on a variation of font belt.
- the timing provided from circuits 38, 40, and 42 are each coupled by means of suitable coupling to the comparator unit 28 and the drive control 36 in the same manner as illustrated in the said US. Pat. No. 3,795,186 for setting the drive control circuit 36, which, in turn, controls the hammer drive circuit 44 and drives the print hammers 46.
- driver control, hammer driver, and printer hammer circuits may also be found in US. Pat. No. 3,795,l86.
- the machine Upon removal and replacement of a type belt 10, the machine is activated. Upon activation of the machine, the sensors 18 and 20 operate to transduce pulses in accordance with the relative position of the primary and secondary indicia l6 and 14 respectively.
- the counter unit 22 responds to an activation signal from the transducer 20 which will set the counter and allow it to continue to count pulses from transducer 20 at a predetermined rate until the transducer 18 picks up a primary indicia signal and resets the counter. Thus, the counter will count to a predetermined total level corresponding to the relative position between the two sets of indicia.
- the decoder circuit 24 will respond to this predetermined total level for providing a one out of n-outputalong the plurality of out- 'put lines indicated beneath the element 24 to one of the appropriate timing circuits in accordance with the relative positioning of the primary and secondary indicia.
- the print hammer timing cycle may be arranged to more precisely and accurately place the printed characters on the paper. It should be noted in connection with the drawing that the print hammer unit 46 operates with the type face 12 in conjunction with an intervening sheet of paper such as is more fully described in US.
- the timing operation may be accomplished by the use of a three bit number which will allow sufficient variation for any practical number of belts. Since the belts are replacable as a unit, a much more convenient method of automatically selecting the particular font timing desired for driving the hammer in a line printer has thus been disclosed. It is only necessary for variation of the font size to change the belt itself, the indicia marks located thereon providing the indication of the variation in speed timing which the circuit need employ in order to select the desired printing speed.
- a print timing apparatus for use in font belt printing for printing in accordance with the timing of any of a plurality of fonts having a different number of characters per set, each different font carried on a font belt, said font belt including a plurality of primary indicia and a plurality of secondary indicia, said primary indicia corresponding to each font on said belt and said secondary indicia corresponding to each character on a font, said first and second indicia positioned on said belt relative to each other in accordance with the size characteristic of each said font, said apparatus comprising a plurality of timing means for controlling the speed actuation of said printer in accordance with the size font on said font belt, a first sensor for sensing said primary indicia, a second sensor for sensing said secondary indicia, a counter coupled to said second sensor and responsive to each secondary indicia for accumulating a count corresponding to said sensed secondary indicia, said counter having a reset input further coupled to said first sensor and responsive thereto to be reset by each sense
Abstract
Description
Claims (1)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00335862A US3845709A (en) | 1973-02-26 | 1973-02-26 | Multifont selection |
DE19742405424 DE2405424A1 (en) | 1973-02-26 | 1974-02-01 | FONT PRINTER WITH CHOICE OF FONT |
FR7403963A FR2219009B3 (en) | 1973-02-26 | 1974-02-06 | |
JP49017522A JPS49115732A (en) | 1973-02-26 | 1974-02-13 | |
GB844774A GB1423080A (en) | 1973-02-26 | 1974-02-25 | Printing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00335862A US3845709A (en) | 1973-02-26 | 1973-02-26 | Multifont selection |
Publications (1)
Publication Number | Publication Date |
---|---|
US3845709A true US3845709A (en) | 1974-11-05 |
Family
ID=23313543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00335862A Expired - Lifetime US3845709A (en) | 1973-02-26 | 1973-02-26 | Multifont selection |
Country Status (5)
Country | Link |
---|---|
US (1) | US3845709A (en) |
JP (1) | JPS49115732A (en) |
DE (1) | DE2405424A1 (en) |
FR (1) | FR2219009B3 (en) |
GB (1) | GB1423080A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4152981A (en) * | 1977-06-03 | 1979-05-08 | Computer Peripherals, Inc. | Dual pitch impact printing mechanism and method |
EP0075423A2 (en) * | 1981-09-10 | 1983-03-30 | Fujitsu Limited | Belt synchronous check system for a line printer |
US4401390A (en) * | 1979-04-18 | 1983-08-30 | Trilog, Inc. | Ribbon control system for multiple color impact printer |
EP0098375A2 (en) * | 1982-06-23 | 1984-01-18 | International Business Machines Corporation | Compensation circuit for multiple speed printer |
US4473006A (en) * | 1977-11-26 | 1984-09-25 | Hitachi Koki Company Limited | System for discriminating among different kinds of type carriers |
US4479430A (en) * | 1977-11-26 | 1984-10-30 | Hitachi Koki Company Limited | System of discriminating the kinds of type carriers |
US4624588A (en) * | 1983-11-08 | 1986-11-25 | Maverick Microsystems, Inc. | Full field MICR encoder |
US5762429A (en) * | 1996-12-06 | 1998-06-09 | Kinpo Electronics, Inc. | Printing head structure of calculator having bold characters |
USD420331S (en) * | 1998-01-02 | 2000-02-08 | Monster Cable Products, Inc. | Electrical wire terminator |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1604577A (en) * | 1977-09-14 | 1981-12-09 | Exxon Research Engineering Co | Coded printing element and apparatus for use thereof |
DE2850378A1 (en) * | 1978-11-21 | 1980-05-29 | Olympia Werke Ag | DEVICE FOR ENTERING FUNCTIONAL CONTROL COMMANDS ON A WRITE OR SIMILAR DATA WRITING OFFICE MACHINE |
DE3414355A1 (en) * | 1984-04-16 | 1985-10-24 | Videoton Elektronikai Vállalat, Székesfehérvár | Method for controlling the print hammers of line printers and a circuit arrangement for carrying out the method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3115092A (en) * | 1961-08-16 | 1963-12-24 | Oki Electric Ind Co Ltd | High speed belt printer |
US3605610A (en) * | 1968-06-04 | 1971-09-20 | Gen Electric | Type member position sensing system in a high speed printer |
US3605613A (en) * | 1968-06-04 | 1971-09-20 | Gen Electric | Reinforced type carrier belt for impact printing apparatus |
-
1973
- 1973-02-26 US US00335862A patent/US3845709A/en not_active Expired - Lifetime
-
1974
- 1974-02-01 DE DE19742405424 patent/DE2405424A1/en active Pending
- 1974-02-06 FR FR7403963A patent/FR2219009B3/fr not_active Expired
- 1974-02-13 JP JP49017522A patent/JPS49115732A/ja active Pending
- 1974-02-25 GB GB844774A patent/GB1423080A/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3115092A (en) * | 1961-08-16 | 1963-12-24 | Oki Electric Ind Co Ltd | High speed belt printer |
US3605610A (en) * | 1968-06-04 | 1971-09-20 | Gen Electric | Type member position sensing system in a high speed printer |
US3605613A (en) * | 1968-06-04 | 1971-09-20 | Gen Electric | Reinforced type carrier belt for impact printing apparatus |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4152981A (en) * | 1977-06-03 | 1979-05-08 | Computer Peripherals, Inc. | Dual pitch impact printing mechanism and method |
US4473006A (en) * | 1977-11-26 | 1984-09-25 | Hitachi Koki Company Limited | System for discriminating among different kinds of type carriers |
US4479430A (en) * | 1977-11-26 | 1984-10-30 | Hitachi Koki Company Limited | System of discriminating the kinds of type carriers |
US4401390A (en) * | 1979-04-18 | 1983-08-30 | Trilog, Inc. | Ribbon control system for multiple color impact printer |
EP0075423A2 (en) * | 1981-09-10 | 1983-03-30 | Fujitsu Limited | Belt synchronous check system for a line printer |
EP0075423A3 (en) * | 1981-09-10 | 1984-05-30 | Fujitsu Limited | Belt synchronous check system for a line printer |
US4493084A (en) * | 1981-09-10 | 1985-01-08 | Fujitsu Limited | Belt synchronous check system for a line printer |
EP0098375A2 (en) * | 1982-06-23 | 1984-01-18 | International Business Machines Corporation | Compensation circuit for multiple speed printer |
EP0098375A3 (en) * | 1982-06-23 | 1985-07-03 | International Business Machines Corporation | Compensation circuit for multiple speed printer |
US4624588A (en) * | 1983-11-08 | 1986-11-25 | Maverick Microsystems, Inc. | Full field MICR encoder |
US5762429A (en) * | 1996-12-06 | 1998-06-09 | Kinpo Electronics, Inc. | Printing head structure of calculator having bold characters |
USD420331S (en) * | 1998-01-02 | 2000-02-08 | Monster Cable Products, Inc. | Electrical wire terminator |
Also Published As
Publication number | Publication date |
---|---|
FR2219009A1 (en) | 1974-09-20 |
GB1423080A (en) | 1976-01-28 |
DE2405424A1 (en) | 1974-08-29 |
FR2219009B3 (en) | 1976-11-26 |
JPS49115732A (en) | 1974-11-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: DATA 100 CORPORATION, A MN. CORP. (CHANGED INTO) Free format text: CERTIFIED COPY OF A CERTIFICATE FILED IN THE OFFICE OF THE SECRETARY OF STATE OF MINNESOTA, SHOWINGMERGER OF ASSIGNORS AND CHANGE OF NAME OF THE SURVIVING CORPORATION ON MAY 30, 1979 EFFECTIVE AY 31, 179,;ASSIGNORS:NORTHERN TELECOM COMPUTERS, INC., A CORP. OF DE.;SYCOR, INC. A CORP. OF DE. (MERGED INTO);REEL/FRAME:004006/0654;SIGNING DATES FROM Owner name: NORTHERN TELECOM INC. (CHANGED INTO) Free format text: CERTIFIED COPY OF MERGER FILED IN THE OFFICE OF THE SECRETARY OF STATE OF DELAWARE, SHOWING MERGEROF ASSIGNORS AND CHANGE OF NAME OF THE SURVIVING CORPORATION ON DEC. 17, 1980, EFFECTIVE DEC. 31, 1980;ASSIGNOR:NORTHERN TELECOM SYSTEMS CORPORATIO A CORP. OF MN. (MERGED INTO);REEL/FRAME:004006/0661 Effective date: 19800918 Owner name: DATA 100 CORPORATION, STATELESS Free format text: CERTIFIED COPY OF A CERTIFICATE FILED IN THE OFFICE OF THE SECRETARY OF STATE OF MINNESOTA, SHOWINGMERGER OF ASSIGNORS AND CHANGE OF NAME OF THE SURVIVING CORPORATION ON MAY 30, 1979 EFFECTIVE AY 31, 179,;ASSIGNOR:NORTHERN TELECOM COMPUTERS, INC., A CORP. OF DE.;REEL/FRAME:004006/0654 Effective date: 19871212 Owner name: NORTHERN TELECOM INC., STATELESS Free format text: CERTIFIED COPY OF MERGER FILED IN THE OFFICE OF THE SECRETARY OF STATE OF DELAWARE, SHOWING MERGEROF ASSIGNORS AND CHANGE OF NAME OF THE SURVIVING CORPORATION ON DEC. 17, 1980, EFFECTIVE DEC. 31, 1980;ASSIGNOR:NORTHERN TELECOM SYSTEMS CORPORATIO A CORP. OF MN. (MERGED INTO);REEL/FRAME:004006/0661 Effective date: 19800918 |
|
AS | Assignment |
Owner name: DATA 100 CORPORATION, A MN CORP. Free format text: ASSIGNS NUNC PRO TUNC AS OF DECEMBER 31, 1977 THE ENTIRE INTEREST IN SAID PATENTS.;ASSIGNOR:IOMEC, INC., A CORP. OF DE;REEL/FRAME:004064/0072 Effective date: 19820902 Owner name: DATA 100 CORPORATION, A MN CORP., STATELESS Free format text: ASSIGNS NUNC PRO TUNC AS OF DECEMBER 31, 1977 THE ENTIRE INTEREST IN SAID PATENTS;ASSIGNOR:IOMEC, INC., A CORP. OF DE;REEL/FRAME:004064/0072 Effective date: 19820902 |