GB1391392A - Heat-sensitive recorder - Google Patents
Heat-sensitive recorderInfo
- Publication number
- GB1391392A GB1391392A GB836273A GB836273A GB1391392A GB 1391392 A GB1391392 A GB 1391392A GB 836273 A GB836273 A GB 836273A GB 836273 A GB836273 A GB 836273A GB 1391392 A GB1391392 A GB 1391392A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stylus
- sheet
- thermal
- pulse length
- speed
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
- G01D15/10—Heated recording elements acting on heatsensitive layers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Electronic Switches (AREA)
Abstract
1391392 Heat-sensitive recording MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 20 Feb 1973 [23 Feb 1972 8 March 1972 2 May 1972 16 May 1972 8 Sept 1972] 8362/73 Heading G1J [Also in Division B6] In a recording apparatus incorporating a heatsensitive recording sheet 5 and a thermal stylus 6, a control circuit is employed which supplies to the stylus 6 thermal energy in the form of electrical pulses at a rate which depends upon the speed of the stylus 6 over the sheet 5 so as to produce a record trace 7 of uniform thickness and colour density. The Y input resulting from the physical quantity being measured drives a servomotor 1 whose speed is monitored by a photo-electric converter 1b. A synchronous motor 3 which drives the sheet 5 is driven at constant speed or by the X axis input of the signal, the speed being monitored by detector 3a, the two measured speeds being processed by a circuit 8 which determines the frequency of the pulses of constant pulse length supplied by generating circuit 9 to the stylus 6. Since a finite time is required after initiation of recording to achieve thermal saturation of the stylus 6, a pulse length compensation is effected which initially increases the pulse length, the pulse length decreasing to its normal operating length in a time which depends upon the thermal characteristics of the stylus 6 which in turn depends upon the configuration thereof and the materials used. A large number of configurations and materials are described with reference to Figs. 3-9 and table 1 (not shown). Each stylus 6 includes (Fig. 5) a substrate 19 of, for example, N or P type material, a heat generating layer 18 of material having, for example, respectively P<SP>+</SP> or N<SP>+</SP> type conductivity, and an area 17 which is for contacting the sheet 5. The thermal sheet 5 undergoes at least one colour change and examples are given of sheets S which undergo up to three different colour changes at a corresponding number of temperatures generated by one or more styli.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1861372A JPS5310866B2 (en) | 1972-02-23 | 1972-02-23 | |
| JP2385272A JPS4892046A (en) | 1972-03-08 | 1972-03-08 | |
| JP4400072A JPS5640036B2 (en) | 1972-05-02 | 1972-05-02 | |
| JP47048757A JPS5231184B2 (en) | 1972-05-16 | 1972-05-16 | |
| JP9082072A JPS5640037B2 (en) | 1972-09-08 | 1972-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1391392A true GB1391392A (en) | 1975-04-23 |
Family
ID=27520051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB836273A Expired GB1391392A (en) | 1972-02-23 | 1973-02-20 | Heat-sensitive recorder |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3813677A (en) |
| AU (1) | AU460872B2 (en) |
| DE (1) | DE2308577B2 (en) |
| FR (1) | FR2184270A5 (en) |
| GB (1) | GB1391392A (en) |
| NL (1) | NL160387C (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5139862B2 (en) * | 1972-12-01 | 1976-10-30 | ||
| JPS52141526A (en) * | 1975-10-27 | 1977-11-25 | Seiko Epson Corp | Voltage and temperature compensating control of thermal printer |
| US4046074A (en) * | 1976-02-02 | 1977-09-06 | International Business Machines Corporation | Non-impact printing system |
| US4092649A (en) * | 1977-03-30 | 1978-05-30 | Honeywell Inc. | Thermographic recorder energizing its heated stylus independently of stylus resistance |
| JPS576971Y2 (en) * | 1977-04-05 | 1982-02-09 | ||
| IT1084249B (en) * | 1977-09-19 | 1985-05-25 | Istrumenti Di Misura C G S Spa | THERMAL WRITING DEVICE FOR RECORDING EQUIPMENT. |
| US4139854A (en) * | 1977-11-21 | 1979-02-13 | M.F.E., Inc. | Variable temperature recording stylus |
| US4168505A (en) * | 1978-10-04 | 1979-09-18 | Atlan-Tol Industries, Inc. | Stylus construction |
| FR2457771A1 (en) * | 1979-06-01 | 1980-12-26 | Thomson Csf | Voltage regulator for print head of thermal printer - counts interval between print lines and regulates print head temperature for uniform print density |
| JPS564481A (en) * | 1979-06-22 | 1981-01-17 | Tdk Corp | Thermal pen tip and preparation thereof |
| US4291315A (en) * | 1979-12-28 | 1981-09-22 | International Business Machines Corporation | Apparatus for providing a constant density trace of ECG analog signals |
| DE3029146C2 (en) * | 1980-07-31 | 1982-05-06 | Siemens AG, 1000 Berlin und 8000 München | Circuit arrangement for generating marking pulses for writing traces in recording devices |
| DE3040327A1 (en) * | 1980-10-25 | 1982-06-03 | Hartmann & Braun Ag, 6000 Frankfurt | Electrically heated pen for thermal paper recorder - has dosed semiconducting heater element on frustum terminating ceramic support |
| JPS591277A (en) * | 1982-06-28 | 1984-01-06 | Graphtec Corp | Heating device for thermal pen |
| JPS5927583U (en) * | 1982-08-12 | 1984-02-21 | 株式会社石田衡器製作所 | heat sensitive label |
| US4485294A (en) * | 1983-03-18 | 1984-11-27 | Phoenix Medical Corporation | Developer for photothermographic paper |
| JPS60143981A (en) * | 1983-12-29 | 1985-07-30 | Konishiroku Photo Ind Co Ltd | Thermal printer |
| JPH0761716B2 (en) * | 1984-04-27 | 1995-07-05 | 株式会社日立製作所 | Thermal transfer recording device |
| JPH0666862B2 (en) * | 1985-06-28 | 1994-08-24 | 株式会社リコー | Multicolor and full color thermal recording method |
| JPS62260476A (en) * | 1986-05-06 | 1987-11-12 | Alps Electric Co Ltd | Gradation printer |
| JP2585586B2 (en) * | 1987-04-16 | 1997-02-26 | 富士写真フイルム株式会社 | Multicolor thermal recording device |
| US5118920A (en) * | 1989-12-11 | 1992-06-02 | Canon Kabushiki Kaisha | Image fixing apparatus |
| JP3720410B2 (en) * | 1995-02-20 | 2005-11-30 | 株式会社大生機械 | Printing method in packaging machine |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2644738A (en) * | 1951-03-22 | 1953-07-07 | Gen Electric | Recording device |
| US3169821A (en) * | 1963-11-20 | 1965-02-16 | Hewlett Packard Co | Fluid pressure controller |
| US3409457A (en) * | 1964-01-11 | 1968-11-05 | Agfa Ag | Thermographic copying sheet |
| US3438056A (en) * | 1967-04-14 | 1969-04-08 | Blh Electronics | Temperature regulation of thermal recording |
| US3501615A (en) * | 1967-09-29 | 1970-03-17 | Texas Instruments Inc | Integrated heater element array and drive matrix |
| GB1190709A (en) * | 1967-12-05 | 1970-05-06 | Henning Gunnar Carlsen | A Thermoprinting Device. |
| US3482254A (en) * | 1967-12-06 | 1969-12-02 | Telex Inc | Apparatus for recording the time-variation of an electrical signal utilizing a pulsed laser |
| US3588445A (en) * | 1969-01-17 | 1971-06-28 | Xerox Corp | Fuser control circuit |
| US3609659A (en) * | 1969-01-27 | 1971-09-28 | Raymond Davis | Thermal display unit |
| US3631459A (en) * | 1969-08-08 | 1971-12-28 | Texas Instruments Inc | Integrated heater element array and drive matrix |
| US3689937A (en) * | 1970-11-09 | 1972-09-05 | Evershed Vignoles Ltd | Recording styli and control circuits for styli |
-
1973
- 1973-02-20 AU AU52365/73A patent/AU460872B2/en not_active Expired
- 1973-02-20 US US00333482A patent/US3813677A/en not_active Expired - Lifetime
- 1973-02-20 GB GB836273A patent/GB1391392A/en not_active Expired
- 1973-02-21 DE DE19732308577 patent/DE2308577B2/en not_active Ceased
- 1973-02-22 NL NL7302466.A patent/NL160387C/en active
- 1973-02-22 FR FR7306316A patent/FR2184270A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2184270A5 (en) | 1973-12-21 |
| AU5236573A (en) | 1974-08-22 |
| NL160387C (en) | 1979-10-15 |
| AU460872B2 (en) | 1975-05-08 |
| DE2308577B2 (en) | 1977-09-01 |
| US3813677A (en) | 1974-05-28 |
| NL7302466A (en) | 1973-08-27 |
| DE2308577A1 (en) | 1973-08-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19930219 |