US3564120A - Image construction system with arcuately scanning drop generators - Google Patents

Image construction system with arcuately scanning drop generators Download PDF

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Publication number
US3564120A
US3564120A US768800A US3564120DA US3564120A US 3564120 A US3564120 A US 3564120A US 768800 A US768800 A US 768800A US 3564120D A US3564120D A US 3564120DA US 3564120 A US3564120 A US 3564120A
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Prior art keywords
receiving member
scanning
drops
signals
scan
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Richard P Taylor
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Mead Corp
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Mead Corp
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    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet

Definitions

  • FIG-2 CARRIAGE TABLE FOR ORIGINAL v SCANNER '2 v ENgooER V 24 j G 3 R I s I I. V 3 7 'J 38 LOG RATIO AMPLIFIER 'NPUT MAGENTA T SHIFT REGIST.
  • M gl'gfi q 65 BUFFER SCANNER/24 STORAGE 9s l l eucoosR OUTPUT PRINTE'R ⁇ SHIFT REG.
  • This invention relates to the production, or reproduction, of
  • a printer using'the jet drop technique fo'rb'oth single and multicolor printing, wherein the' relative motion between the drop generator equipment and the receiving member or web is at a relatively low speed, and the drop generator equipment is scanned at a much higher speed repetitively over the receiving member.
  • an encoder or equivalent pulse-generating device may'be coupied to the rotating scanning mechanism to generate gating pulsesat a frequency corresponding to the desired center-to- -'center dot spacing thereby providing a synchronized control for precise side-by-side placementof the dots.
  • the rotating device carrying the drop generators, the encoder, and the mechanism for advancing the receiving web are all driven in synchronism, preferably from a common drive unit, to assure the exact correlation of these various devices, and thus to as sure that each drop can be precisely located in a coordinate system, where the successively arcua't'e scan lines form one half of such system, and the output of the encoder provides the; other half of the coordinate system.
  • Each drop directed along a trajectory toward the web is destined for a certain coordinate location, and depending upon the intelligence controlling the drop-switching units, the individual drops will be or will be permitted to deposit in'the predestined location.
  • the input intelligence for such a printer can be provided by an optical scanner functioning in the same manner, and employing a corresponding number of optical scanning devices which are scanned in arcuate fashion over the original of an image to be reproduced.
  • the original is moved in synchronized relation with respect to the scanning motion, and a scanner encoder is keyed or otherwise driven by the same drive unit which produces the scanning motion, and is connected to gate the outputs of the optical scanners, thereby producing intelligence which can be transmitted over removed from the trajectory, and'prevented from depositing presently available communicationsequipment lngeneral the intelligence in' a multicolor system includes digital switching information for each of the optical'scanners, which I may involve four 'colors, together with control'signals which gate the system and distinguish betweenthe scans for four different colors.
  • an object of this invention is to provide a novel image-producing device responsive to digital input'inforrna tion and creating the image from successiveliquiddrops a which are deposited in coordinate fashion from a drop generator which is repetitively scanned over a moving web' 'or equivalent receiving member; to provide a novel scanning andpulse intelligence-producing device for creating an inputto such a printer, and to provide an image reproduction system employing the printer and scanner device, which is capable of use with presently available communications equipment.
  • FIG. 1 is a'schema'tic view showing" the general arrangement of a scanning device provided according'to the invention
  • FIG. 2 is an illustration of v the coordinate scanning technique employed by the scanning deviceand by the printer
  • FIG. 3 is a block'diagram showing the-pulse intelligence equipment associated withthe scanning device, and'indicating the connections to one of a plurality of optical scanners;
  • FIG. 7 is a further enlarged sectional detail, showing details of the switching-head of a drop generator
  • FIG. 8 is a sectional view illustrating the rotating liquid and electrical connections employed on the rotating shaft of the printer shown in FIG. 5;
  • FIG. 9 is a slightly enlarged sectional view, taken on line 9-9 in'FIG; 8, showing the arrangement of liquid passages in the shaft.
  • an original copy or print 10 having an image of pictorial or text matter to be reproduced, is supported on a transversely movable base 12 for scanning bythe optical scanner.
  • This scanner includes a disc 15 or equivalent rotating support which is rotated at a predetermined constant speed by a drive shaft 16 from a drive'unit 18 which may include a motor and appropriate gear reduction and speed control device.
  • the drive unit also has an output indicated schematically at 19 to the base 12 for advancing the base at a predetermined relatively slow rate with respect to the rotating scanning disc 15.
  • optical scanners 20a, 20b, 20c and 20d This causes the optical scanners 20a, 20b, 20c and 20d to scan in sequence over arcuate paths across the original 10. As shown in FIG. 2 these paths are represented by the arcuate lines 21, with the scanning viewed from above and the motion of the optical scanning unit (or the printing units shown in FIG. 5) progressing from left to righLMotion of the copy from top to bottom produces the spacing of successive arcuate scans, and this spacing is controlled by the drive arrangement whereby through the drive 19 the base 12 is advanced by the amount between successive scan centers during the interval between commencement of scans by successive scanning units.
  • the drive 18 also is connected to a scanner encoder 24 which is constructed to produce pulses at regular intervals during the scanning motion.
  • a typical encoder might be a light chopper" employing a disc or drum with slits or opaque marks which repetitively interrupts the path between a light source and a photocell.
  • Other encoders such as a magnetic pickup head and a magnetic recording surface may likewise be employed.
  • the occurrence of the encoder pulses can be used to break the arcuate scans into a coordinate system, the vertical lines 25 representing the occurrence of successive encoder pulses, and thus a coordinate system is created wherein the occurrence of a given encoder pulse during a given arcuate scan represents a particular coordinate in the system.
  • each scanning unit 20a-20d is employed, each responding to a different color, for example red, cyan, yellow and black.
  • angular extent of the arcuate scans be slightly less than 90. In a typical arrangement each scan will extend for approximately 88", leaving 2 of movement to accommodate control information.
  • each of the scanning units includes a light source 30 which is focused by an optical system 31 projecting a small light spot on the copy 10.
  • the reflection of this spot of light from the copy is directed through a further optical system 32, which directs the light into a beam splitter 35.
  • Two separate beams of light pass from the beam splitter, one beam passing along the path indicatedat 36 and through a suitable color filter 38, and another or reference beam 39 being directed through a neutral density filter 40.
  • this output is directed to a threshold logic circuit 52 which is constructed and arranged to provide an output only if the scanning unit output has a signal from the corresponding difference amplifier that exceeds a predetermined level. In other words, the scanning unit must see" a certain intensity of red before there will be an output from the threshold logic circuit.
  • the output of the logic circuit 52 is directed to one input of a NAND gate 55, and the other input to this gate circuit is from the scanner encoder 24, which serves to provide a regular sampling of the threshold logic output circuit, hence the output from the NAND gate, along the red signal line 56, will be a pulsed signal indicating presence or absence of a red dot in the print to be reproduced.
  • Corresponding pulse signals appear on the lines 57, 8 and 59, corresponding to the presence or absence of dots of'cyan, yellow, and black colors.
  • the outputsof the four sampling gates are connected into a blanking circuit 60 including a suitable'control flip-flop and gating circuits which are keyed from the scanner encoder.
  • a blanking circuit 60 including a suitable'control flip-flop and gating circuits which are keyed from the scanner encoder.
  • gating pulses are transmittedfrom the scanning encoder to control the gating of the scanner unit outputs.
  • These signals cause only the appropriate output from that scanning unit next to scan the original to be transmitted over the transmission system, indicated generally at 62.
  • the resulting signal is digital in nature, essentially a string of control pulses which are time based according to the scanning operation, and which depending upon available bandwidth can be transmitted over presently available systems such as telephone lines.
  • FIG. 4 shows in block form a suitable arrangement for the control of the printer.
  • the receiver is indicated by the input arrow 65 which receives the pulse information from the transmitter 62, and directs this information to an input shift register 67.
  • This register transfers the digital information into a buffer memory or storage unit 68.
  • the digital information corresponding to each scan is stored in the buffer memory with appropriate signals distinguishing that information from the information for other scans.
  • This information is taken from the memory through an output shift register as it is needed to control the printer, and it is transmitted through blanking control flip-flops and gate circuits, indicated generally at 72, ti) provide an output on one of the four control lines 73, 74, and 76.
  • Each of these control lines is connected to a suitable amplifier 78 (only one shown in FIG. 4) which in turn directs the pulses signal to the switching units of a jet drop projector unit which is indicated generally at 80.
  • the web 82 is driven through drive rollers 84 from the suitable drive means 85, in the direction indicated by the arrow.
  • the web is thus moved over the locating table or support surface 87.
  • the drop generators 80a-80d are supported on a disc or plate which is in turn carried on a rotatable shaft 91 driven from the drive means 85.
  • This same drive means as shown schematically, also drives a printer encoder 95 which provides registeringor-control pulses for the system.
  • FIGS. 6 and 7 A detail of one of the drop generators 80a80d and its mounting is shown in FIGS. 6 and 7.
  • An orifice is provided in a liquid ink supply tube 102 which is carried in an adjustable ball-type mounting 103. This mounting is in turn positioned within a correspondingly shaped socket 104 fastened to the disc 90.
  • the switching controls include a charging electrode 105, and deflecting electrodes 107.
  • the connection to the charging electrode is indicated at 110, the connection to the deflection electrodes is indicated at 112.
  • the catcher unit projects into the lower end of the unit, in close proximity to the path or trajectory of the dropsissuing from the orifice 100.
  • the stimulating transducer,- which stimulates the drop generator to produce drops at the desired frequency is indicated generally at 118, it being understood, as shown in FIG. 5, that there are preferably separate stimulators for each dropgenerating unit.
  • the liquid ink supply is conducted to the individual drop generators through flexible hoses a-l20d which extend through separate passages l22a-122d (FIGS. 8 and 9) inside the rotating shaft 91 into respective ones of the rotary connec-' tors I25a-125d. These four connectors receive different color inks from the respective reservoirs l27a-127d, which are supplied through pumps 128.
  • each of the catcher units 115 is connected into a common return tube which in turn extends through a passage 132 in the shaft to the rotary joint 135 providing an exit for the liquid collected from the respective catcher-units.
  • a collector tank 137 and vacuum pump 138 provide continuous suction through the collector system.
  • the slip rings 140 and corresponding brushes I42 provide separate electrical connectors from the amplifiers 78 (FIG. 4) for the respe ctive charging electrodes, power supply for the deflecting electrodes, and power supply for the high frequency stimulators.
  • each of the drop generator units is inclined in a rearward direction with respect to the predominant direction jected with a horizontal velocity component which effectively cancels the velocity contribution produced by the rotation of disc 90. As a result thereof the drops descend in a nearly vertical trajectory.
  • the encoder 95 provides a source of control pulses which serve to step the signals from the memory through the output shift register 70 and gate these switching signals to the drop 'ge'nerators.
  • the encoder preferably also controls the stimulating frequency of the stimulating devices 118, by controlling their driving amplifier 144 (FlGf l) at a frequency which corresponds to the scanning rate of each drop generator across the web 82.
  • the frequency resulting from control by the encoder will produce drops spaced apart such that they are deposited in adjoining positions along an arcuate scan line on the web 82, and if drops are permitted to deposit successively, a solid generally arcuate line may be formed across the web.
  • Forward motion of the web 82 is sufficient, and is correlated through the common drive means 85, to cause successive scans of the drop generators 80a-80d to fall along arcuate scan lines spaced apart by a selected distance. For example, if it is desired that the dots formed by deposited drops should join, or slightly overlap, then the forward motion of the web 82 between the beginnings of the succeeding scans will equal the desired center-to-center spacing of the dots.
  • the successive control pulses from the encoder will provide timed gating signals according to the center-to-center spacing desiredfor successive drops from the drop generators in a single scan.
  • the digital intelligence to the charging electrodes 105 is gated to assure precise placement of the liquid drops along the scan lines at predetermined coordinate positions on the web 82.
  • Apparatus for producing a graphic representation from digital output information comprising:
  • a plurality of marking units arranged to place individual dots of a different color on the receiving member
  • scanning means carrying said marking units and causing them to scan sequentially over said supporting means in a curved path and a coordinated drive means causing rela tive movement between the receiving member and said scanning means whereby said marking units scan the receiving member in succession over arcuate paths of predetermined spacing;
  • control for said marking units including synchronizing means correlated to said scanning means and connected said control including an encoder means also coordinated with said drive means and arranged to generate gating signals according to the center-to-center spacing of dots on the receiving member;
  • gating means connected to control said marking units under the combined influence of gating signals and intelligenc input signals.
  • marking units each include means for generating a stream of spaced liquid drops toward the receiving member at a rate corresponding to the scanning velocity, and switching means responsive to the control signals to deflect certain of the drops 7' from their normal trajectory according to the control signals whereby drops are deposited on the receiving member according to a coordinate intelligence pattern.
  • Apparatus for digitally reproducing copies of an image comprising:
  • first scanning means arranged to scan the image on said supporting means over a plurality of adjacent arcuate scan lines
  • said signal-generating means including a first encoder driven with said first scanning means and producing gating pulses time based according to the desired center-tocenter spacing of the dots in the image;
  • said first encoder having its gating pulse output connected to control the output from said signal-generating means
  • a marking unit including means for generating discrete marking drops at a predetermined rate
  • said second scanning means including a rotatable member carrying said marking unit and arranged to scan said marking unit repetitively over the receiving member;
  • drop control means connected to said marking unit and constructed and arranged to cause certain of the individual drops to deposit on the receiving member and other drops to be intercepted after leaving said generating means;
  • control circuits coordinated with said second scanning means and receiving said information signals from said signal generating means, said control circuits having an operating connection to said drop control means for causing deposit of individual dropson the copy sheet in accordance with the signals to reproduce the image in dot matrix form on the receiving member;
  • a second encoder operated from said drive means to generate positional time based gating signals for locating drop placement from said marking unit during its scanning movement;
  • a jet drop recorder comprising:
  • said drop generator being modulatable by generating a stream of drops of equal size at a constant frequency and selectively removing drops from the stream in accordance with a predetermined program;
  • support means for supporting a planar receiving member in the field of coverage of the drop generator
  • rotating means for producing rotary scan motion of the drop generator around a stationary axis in a plane parallel to the plane of a receiving member on said support means;
  • translating means producing linear motion of a receiving member on said support means past an arcuate section of the rotary motion of the drop generator thereby enabling drop deposition on the receiving member along successive spaced arcuate lines;
  • a coordinated drive system connected to operate said rotating means at a predetermined constant speed and to stimulate said drop generator at a corresponding frequency to produce adjoining drop deposits on the receiving member along the scan direction and also connected to said translating means for spacing successive scans such that drop deposits in successive scans can adjoin;
  • an encoder operated from said drive system to generate positional time based gating signals for stimulating said drop generator to locate the drop deposits in adjoining relation along each arcuate scan line.
  • Apparatus for producing a graphic representation from digital input information comprising:
  • a marking unit including means for generating a stream of spaced iquid drops toward the receiving member at a rate corresponding to movement of said scanning means to place individual dots in adjoining positions on the receiving member;
  • switching means in said marking unit to deflect certain of the drops from the stream according to the input signals
  • control for said marking unit including synchronizing means correlated to said scanning means and connected to switch sai'd marking unit according to input intelligence signals and place dots at precise positions on the receiving member;
  • control including an encoder-means synchronized with said drive means and arranged to generate gating signals according to the center-to-center spacing of dots in the arcuate paths on the receiving member' and gating means connected to control said switching means under the combined influence of gating signals and intelligence input signals.
  • said advancing means includes a movable carriage providing the supporting means for the receiving member, said scanning means including a rotatable member mounting said marking unit and arranged to rotate in a fixed circle over the path of movement of said carriage across the receiving member, and said drive means is constructed and arranged to rotate said rotatable member at a fixed speed and to advance said carriage at a predetermined lower speed causing said marking unit to make closely spaced successive arcuate scans across the receiving member.
  • Apparatus according to claim 7 including a plurality of marking units each arranged to place dots of a different color on the receiving member;
  • said scanning means being arranged to scan said marking units sequentially over said supporting means;
  • control including blanking means for directing the intelligence signals in succession to the marking units as each unit scans across the receiving member.

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  • Fax Reproducing Arrangements (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Ink Jet (AREA)
US768800A 1968-10-18 1968-10-18 Image construction system with arcuately scanning drop generators Expired - Lifetime US3564120A (en)

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US (1) US3564120A (enrdf_load_stackoverflow)
JP (1) JPS495365B1 (enrdf_load_stackoverflow)
BE (1) BE735407A (enrdf_load_stackoverflow)
CH (1) CH504141A (enrdf_load_stackoverflow)
DE (1) DE1946054A1 (enrdf_load_stackoverflow)
FR (1) FR2020959A1 (enrdf_load_stackoverflow)
GB (1) GB1277234A (enrdf_load_stackoverflow)
NL (1) NL6914599A (enrdf_load_stackoverflow)
SE (1) SE358983B (enrdf_load_stackoverflow)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717722A (en) * 1970-04-27 1973-02-20 J Messner Apparatus for printing continuous runs of material
US3737914A (en) * 1970-04-02 1973-06-05 C Hertz Liquid jet recorder
US3767844A (en) * 1970-12-30 1973-10-23 Morat Gmbh Franz Device for scanning a drawing and for printing a drawing paper with a corresponding pattern
US3864696A (en) * 1971-10-26 1975-02-04 Rca Corp Printing apparatus
JPS5014214A (enrdf_load_stackoverflow) * 1973-06-06 1975-02-14
US3925790A (en) * 1974-04-25 1975-12-09 Rca Corp Image generator having a plurality of marker units operated in a predetermined sequence to inhibit the formation of patterns
US3931461A (en) * 1973-04-27 1976-01-06 Agence Nationale De Valorisation De La Recherche (Anvar) Telereproduction system for documents
US3987492A (en) * 1973-10-01 1976-10-19 Siemens Aktiengesellschaft Liquid jet recorder
US3995279A (en) * 1973-10-10 1976-11-30 Siemens Aktiengesellschaft Liquid jet recorder
US4005475A (en) * 1972-06-02 1977-01-25 Dr. -Ing. Rudolf Hell Gmbh Method for improving sharpness when recording half-tone pictures by modulating a sharpness signal
US4050075A (en) * 1974-10-17 1977-09-20 Hertz Carl H Ink jet method and apparatus
US4063254A (en) * 1976-06-28 1977-12-13 International Business Machines Corporation Multiple array printer
US4069486A (en) * 1976-06-28 1978-01-17 International Business Machines Corporation Single array ink jet printer
US4208666A (en) * 1978-10-23 1980-06-17 The Mead Corporation Multiple copy ink jet printer
EP0021389A1 (de) * 1979-06-26 1981-01-07 Siemens Aktiengesellschaft Tintendruckeinrichtung zum Bedrucken eines Aufzeichnungsträgers
US4303928A (en) * 1976-10-04 1981-12-01 Nippon Telegraph & Telephone Public Corp. Printer head assembly for an ink jet system printer of the charge amplitude controlling type
WO1982001957A1 (en) * 1980-11-26 1982-06-10 Richard C Ackerman A data carrier and apparatus for optically reading digital data inscribed in an arcuate pattern on a data carrier
US4403874A (en) * 1980-03-25 1983-09-13 Ramtek Corporation Color printer and multi-ribbon cartridge therefor
US4412225A (en) * 1981-02-06 1983-10-25 Fuji Photo Film Co., Ltd. Method for color representation using colored ink dots
US4692913A (en) * 1980-11-26 1987-09-08 News Log International, Inc. Method and apparatus for reading a data record carrier
US4714936A (en) * 1985-06-24 1987-12-22 Howtek, Inc. Ink jet printer
US4791434A (en) * 1984-11-12 1988-12-13 Commonwealth Scientific And Industrial Research Organization Droplet stream alignment for jet printers
AU592958B2 (en) * 1984-11-12 1990-02-01 Commonwealth Scientific And Industrial Research Organisation Droplet stream alignment for jet printers
EP0558236A3 (en) * 1992-02-26 1993-10-13 Canon Kabushiki Kaisha Ink jet recording method and apparatus and recorded matter
US5828387A (en) * 1988-09-17 1998-10-27 Canon Kabushiki Kaisha Recording apparatus with compensation for variations in feeding speed
US6116728A (en) * 1992-02-26 2000-09-12 Canon Kabushiki Kaisha Ink jet recording method and apparatus and recorded matter
US6398358B1 (en) 1992-02-26 2002-06-04 Canon Kabushiki Kaisha Textile ink jet recording method with temporary halt function

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5483870U (enrdf_load_stackoverflow) * 1977-11-24 1979-06-14
SE432191B (sv) * 1980-05-05 1984-03-26 Arne Wannag Vridstyv pincett
JPS6049638U (ja) * 1983-09-12 1985-04-08 ロ−ム株式会社 ウェハ−用ピンセット
DE9409020U1 (de) * 1994-06-03 1994-10-06 Leuther, Gero, 42111 Wuppertal Farbwechselaufsatz

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US709158A (en) * 1899-11-06 1902-09-16 Frederick Kleinschmidt Facsimile-telegraph.
US1834330A (en) * 1928-05-14 1931-12-01 Fed Telegraph Co Facsimile transmission system and method
US2573143A (en) * 1948-03-29 1951-10-30 Carlyle W Jacob Apparatus for color reproduction
US3120577A (en) * 1960-12-02 1964-02-04 Outlook Engineering Corp Scanning system
US3298030A (en) * 1965-07-12 1967-01-10 Clevite Corp Electrically operated character printer
US3404221A (en) * 1965-10-22 1968-10-01 Arthur V. Loughren Controlled ink-jet copy-reproducing apparatus

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Publication number Priority date Publication date Assignee Title
US709158A (en) * 1899-11-06 1902-09-16 Frederick Kleinschmidt Facsimile-telegraph.
US1834330A (en) * 1928-05-14 1931-12-01 Fed Telegraph Co Facsimile transmission system and method
US2573143A (en) * 1948-03-29 1951-10-30 Carlyle W Jacob Apparatus for color reproduction
US3120577A (en) * 1960-12-02 1964-02-04 Outlook Engineering Corp Scanning system
US3298030A (en) * 1965-07-12 1967-01-10 Clevite Corp Electrically operated character printer
US3404221A (en) * 1965-10-22 1968-10-01 Arthur V. Loughren Controlled ink-jet copy-reproducing apparatus

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3737914A (en) * 1970-04-02 1973-06-05 C Hertz Liquid jet recorder
US3717722A (en) * 1970-04-27 1973-02-20 J Messner Apparatus for printing continuous runs of material
US3767844A (en) * 1970-12-30 1973-10-23 Morat Gmbh Franz Device for scanning a drawing and for printing a drawing paper with a corresponding pattern
US3864696A (en) * 1971-10-26 1975-02-04 Rca Corp Printing apparatus
US4005475A (en) * 1972-06-02 1977-01-25 Dr. -Ing. Rudolf Hell Gmbh Method for improving sharpness when recording half-tone pictures by modulating a sharpness signal
US3931461A (en) * 1973-04-27 1976-01-06 Agence Nationale De Valorisation De La Recherche (Anvar) Telereproduction system for documents
JPS5014214A (enrdf_load_stackoverflow) * 1973-06-06 1975-02-14
US3987492A (en) * 1973-10-01 1976-10-19 Siemens Aktiengesellschaft Liquid jet recorder
US3995279A (en) * 1973-10-10 1976-11-30 Siemens Aktiengesellschaft Liquid jet recorder
US3925790A (en) * 1974-04-25 1975-12-09 Rca Corp Image generator having a plurality of marker units operated in a predetermined sequence to inhibit the formation of patterns
US4050075A (en) * 1974-10-17 1977-09-20 Hertz Carl H Ink jet method and apparatus
US4063254A (en) * 1976-06-28 1977-12-13 International Business Machines Corporation Multiple array printer
US4069486A (en) * 1976-06-28 1978-01-17 International Business Machines Corporation Single array ink jet printer
US4303928A (en) * 1976-10-04 1981-12-01 Nippon Telegraph & Telephone Public Corp. Printer head assembly for an ink jet system printer of the charge amplitude controlling type
US4208666A (en) * 1978-10-23 1980-06-17 The Mead Corporation Multiple copy ink jet printer
EP0021389A1 (de) * 1979-06-26 1981-01-07 Siemens Aktiengesellschaft Tintendruckeinrichtung zum Bedrucken eines Aufzeichnungsträgers
US4403874A (en) * 1980-03-25 1983-09-13 Ramtek Corporation Color printer and multi-ribbon cartridge therefor
WO1982001957A1 (en) * 1980-11-26 1982-06-10 Richard C Ackerman A data carrier and apparatus for optically reading digital data inscribed in an arcuate pattern on a data carrier
US4416001A (en) * 1980-11-26 1983-11-15 News Log International, Inc. Method and apparatus for optically reading digital data inscribed in an arcuate pattern on a data carrier
US4692913A (en) * 1980-11-26 1987-09-08 News Log International, Inc. Method and apparatus for reading a data record carrier
US4412225A (en) * 1981-02-06 1983-10-25 Fuji Photo Film Co., Ltd. Method for color representation using colored ink dots
US4791434A (en) * 1984-11-12 1988-12-13 Commonwealth Scientific And Industrial Research Organization Droplet stream alignment for jet printers
AU592958B2 (en) * 1984-11-12 1990-02-01 Commonwealth Scientific And Industrial Research Organisation Droplet stream alignment for jet printers
US4714936A (en) * 1985-06-24 1987-12-22 Howtek, Inc. Ink jet printer
US5828387A (en) * 1988-09-17 1998-10-27 Canon Kabushiki Kaisha Recording apparatus with compensation for variations in feeding speed
EP0558236A3 (en) * 1992-02-26 1993-10-13 Canon Kabushiki Kaisha Ink jet recording method and apparatus and recorded matter
US6116728A (en) * 1992-02-26 2000-09-12 Canon Kabushiki Kaisha Ink jet recording method and apparatus and recorded matter
US6398358B1 (en) 1992-02-26 2002-06-04 Canon Kabushiki Kaisha Textile ink jet recording method with temporary halt function

Also Published As

Publication number Publication date
CH504141A (de) 1971-02-28
FR2020959A1 (enrdf_load_stackoverflow) 1970-07-17
JPS495365B1 (enrdf_load_stackoverflow) 1974-02-06
SE358983B (enrdf_load_stackoverflow) 1973-08-13
NL6914599A (enrdf_load_stackoverflow) 1970-04-21
BE735407A (enrdf_load_stackoverflow) 1969-12-01
GB1277234A (en) 1972-06-07
DE1946054A1 (de) 1970-04-30

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