US3553371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for enlarged muticolor printing and a device therefor
Assignee: NIPPON ENLARGING COLOR Inc
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Filing: 1968-02-26
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Granted: 1971-01-05
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Expires: 1988-02-26
Abstract
Abstract A method and device for enlarged multicolor printing, by scanning an original color picture; color separation of light beams corresponding to each spot of the original picture into primary colors; converting the light beams into electric signals representing density of each primary color; actuating spray guns, each assigned to said primary colors, responsive to said electric signals, with proper time delay, so that a spot on a synchronously driven printing medium, which corresponds to said scanned point of the original picture, is printed in an extremely enlarged dimension by said spray guns in multicolor.
Inventors
- 👤 Taro Suenaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:21
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/50; H04N1/024; H04N1/032; H04N1/034
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
208 words
A method of enlarged multicolor printing, comprising scanning a color original by a single camera means capable of performing color separation, converting color information thus scanned into printing signals corresponding to the separated colors, separately controlling a plurality of spaced-apart color-printing heads each for a different color by corresponding different signals of said color-printing signals, moving said printing heads and a medium to be printed relative to each other in synchronism with the original scanning and with said printing heads in substantial alignment along a single printing scan path, providing a time delay for the printing signals of each color after the signals for the first printing head, said time delays corresponding to the relative traveling time of the relevent spaced printing head for each color and correspondence therewith of a picture element on the medium to be printed after the first head thereat and continuously providing said printing signals to all printing heads for concurrently controlling printing by all heads, and applying color material from the spaced-printing heads to the medium to be printed according to said control by said printing signals so as to reproduce an enlArged color picture having substantially the density of each particular color at the corresponding picture element of the color original.
Claim 2
Independent Claim
208 words
A method of enlarged multicolor printing, comprising scanning a color original by a single camera means capable of performing color separation, converting color information thus scanned into printing signals corresponding to the separated colors, separately controlling a plurality of spaced-apart color-printing heads each for a different color by corresponding different signals of said color-printing signals, moving said printing heads and a medium to be printed relative to each other in synchronism with the original scanning and with said printing heads in substantial alignment along a single printing scan path, providing a time delay for the printing signals of each color after the signals for the first printing head, said time delays corresponding to the relative traveling time of the relevent spaced printing head for each color and correspondence therewith of a picture element on the medium to be printed after the first head thereat and continuously providing said printing signals to all printing heads for concurrently controlling printing by all heads, and applying color material from the spaced-printing heads to the medium to be printed according to said control by said printing signals so as to reproduce an enlArged color picture having substantially the density of each particular color at the corresponding picture element of the color original.
Claim 3
Dependent Claim
92 words
A method of enlarged multicolor printing as defined in claim 1 wherein the scanning by a camera of a color original is done with relative movements therebetween in two directions substantially at right angles, and said applying of color material from the printing heads to the medium to be printed is done with the relative movements therebetween in synchronism with said scanning movements and with a greater printing surface scan movement than the original scan surface movement with a correspondingly enlarged printed picture element area over the original scanned picture element area.
Claim 4
Independent Claim
274 words
A device for enlarged multicolor printing, comprising a single camera means capable of scanning a color original and performing color separation into primary color light, means for converting primary color light beams from said camera means into electric signals, color-printing heads each for the application of a different one of the primary colors, driving means for driving both said printing heads and said medium to be printed relative to each other to provide a printing scanning of said medium by said heads in synchronism with the scanning of the original and with a greater printing surface scan movement than the original scan surface movement with a correspondingly enlarged printed picture element area over the corresponding original scanned picture element area, said printing heads being spaced from each other in substantial alignment along a single printing scan path and being constructed to print said enlarged printed picture element area, means providing for utilizing said converted primary color light beam electric signals for continuously controlling operation of said printing heads, time delay means for delaying respective electric signals by a period corresponding to the time for the respective color-printing heads and the medium to be printed to travel relative to each other through the scan interval defined by the spacing between the respective color-printing heads and the first of said printing heads relative to the medium to be printed while continuously controlling the operation of said heads whereby coloring material is applied from said spaced printing heads to the medium to be printed maintaining registration of each color and so as to reproduce the density of each color at the corresponding picture element of the original.
Claim 5
Independent Claim
274 words
A device for enlarged multicolor printing, comprising a single camera means capable of scanning a color original and performing color separation into primary color light, means for converting primary color light beams from said camera means into electric signals, color-printing heads each for the application of a different one of the primary colors, driving means for driving both said printing heads and said medium to be printed relative to each other to provide a printing scanning of said medium by said heads in synchronism with the scanning of the original and with a greater printing surface scan movement than the original scan surface movement with a correspondingly enlarged printed picture element area over the corresponding original scanned picture element area, said printing heads being spaced from each other in substantial alignment along a single printing scan path and being constructed to print said enlarged printed picture element area, means providing for utilizing said converted primary color light beam electric signals for continuously controlling operation of said printing heads, time delay means for delaying respective electric signals by a period corresponding to the time for the respective color-printing heads and the medium to be printed to travel relative to each other through the scan interval defined by the spacing between the respective color-printing heads and the first of said printing heads relative to the medium to be printed while continuously controlling the operation of said heads whereby coloring material is applied from said spaced printing heads to the medium to be printed maintaining registration of each color and so as to reproduce the density of each color at the corresponding picture element of the original.
Claim 6
Dependent Claim
98 words
A device for multicolor printing as defined in claim 3 including a drive roll means for mounting the color original for scanning by said camera, said driving means for driving the medium to be printed including a roll for mounting the medium and having a relatively greater diameter than said color original mounting roll driven synchronously therewith whereby a correspondingly greater printing surface scan movement than the original scan surface movement is provided, and said printing heads are spaced in substantial lateral alignment substantially perpendicular to the axis of rotation of the medium to be printed mounting roll.
Claim 7
Dependent Claim
61 words
A device for multicolor printing as defined in claim 4 having a light quantity detecting means on said camera means for detecting the light quantity at and in the vicinity of each picture element scanned, and a light quantity controlling means for regulating the light quantity in the camera means in response to the output of said light quantity detecting means.
Claim 8
Dependent Claim
64 words
A device for multicolor printing as defined in claim 3 wherein said means for converting primary color light beams from said camera into electric signals comprises photoelectric means, and said device includes means for converting said electric signals for primary color into corresponding printing color signals and includes means for combining said primary color signals for providing a printing signal for the color black.
Claim 9
Dependent Claim
64 words
A device for enlarged multicolor printing as defined in claim 6 having a light quantity detectIng means mounted on said camera means for detecting the light quantity at and in the vicinity of each picture element being scanned, and a light quantity controlling means for regulating the light quantity in the camera means in response to the output of said light quantity detecting means.
Claim 10
Dependent Claim
76 words
A device as defined in claim 3 wherein each printing head comprises a needle valve having a tube of rigid material, the tip end of the tube being made of resilient material, an opening in said valve for passage of color material, and means for introducing compressed air into the tube to swell and contract the tip end so as to effect control of the size of the opening by control of the compressed air pressure.
Claim 11
Dependent Claim
52 words
A device as defined in claim 3 wherein each color printing head comprises a color material nozzle having a needle valve provided with a pair of longitudinal grooves, and a solenoid arranged to rotate the needle valve to control the position of the grooves and regulate the discharge of the color material.
Claim 12
Dependent Claim
61 words
A device as defined in claim 3 wherein each printing head comprises a needle valve having a rigid tube with a tip end formed of resilient material, an opening in said valve for passage of color material therethrough, and means for introducing pressurized liquid into said resilient tip end for controlling the size thereof and thereby the size of said opening.
References Cited (Backward Citations)
US1709926A
Cited
US1817098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |