GB1444727A - Electrostatic recording devices for facsimile systems and the like - Google Patents
Electrostatic recording devices for facsimile systems and the likeInfo
- Publication number
- GB1444727A GB1444727A GB3978473A GB3978473A GB1444727A GB 1444727 A GB1444727 A GB 1444727A GB 3978473 A GB3978473 A GB 3978473A GB 3978473 A GB3978473 A GB 3978473A GB 1444727 A GB1444727 A GB 1444727A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- facsimile
- recording
- electrostatic recording
- pick
- 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
-
- 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
- B41J2/385—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material
- B41J2/39—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material using multi-stylus heads
- B41J2/40—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material using multi-stylus heads providing current or voltage to the multi-stylus head
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/23—Reproducing arrangements
- H04N1/29—Reproducing arrangements involving production of an electrostatic intermediate picture
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Facsimile Heads (AREA)
- Fax Reproducing Arrangements (AREA)
Abstract
1444727 Electrostatic recording device NIPPON ELECTRIC CO Ltd 22 Aug 1973 [22 Aug 1972] 39784/73 Heading H4F [Also in Division H1] Electrostatic recording device for use in a facsimile receiver comprises a hermetically sealed gas filled envelope 100 containing a linear array of scanning electrodes 111-117 which with a common electrode 140 and by applying positive start pulse 171 and three-phase negative scan pulses 172-174 as shown, a gas discharge is shifted sequentially along the array. In addition the envelope contains voltage pick-up electrodes 121-127 disposed in one-to-one correspondence with the scanning electrodes which pick-up the potential developed in the discharge space by the ionic conduction one after another to provide voltages sequentially to recording stylus electrodes 131-137 past which electrostatic recording paper 180 is moved over a back electrode 190. The facsimile video signal to be recorded is applied through input terminal 165 and amplifier 145 to the back electrode 190, and also to the control input terminal 144 of a variable-resistant element 142, e.g. a transistor, connected between a D.C. power supply 143 and a current limiting resistor 141, which resistor is connected to the common electrode 140. The resistance value of element 142 is thus controlled in response to the magnitude of the video signal. Shunt resistor 151- 157 reduce the adverse effects of stray capacitances which appear between the recording electrodes and ground. The control of the variable-resistant element 142 in response to the facsimile signal reduces the sputtering in the device and thus increases its life span, this is because a facsimile signal has a great deal of redundancy due to the proportion of black signals "1" being considerably less than white signals "0". Thus a logic "0" facsimile signal is arranged to turn off the transistor (301, Fig. 3, not shown) to thereby limit the discharge current so that a mere scanning operation is effected, whereas a logic "1" facsimile signal increases the discharge current so that a recording output voltage is fed to the recording stylus electrode. The tips of the pick-up electrodes are located within recesses in the scanning electrodes, the common electrode being located above the scanning electrodes but spaced from their recessed portions (Fig. 2, not shown). An I.C. type construction of the device is described with reference to Fig. 4, not shown.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8428172A JPS5532067B2 (en) | 1972-08-22 | 1972-08-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1444727A true GB1444727A (en) | 1976-08-04 |
Family
ID=13826057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3978473A Expired GB1444727A (en) | 1972-08-22 | 1973-08-22 | Electrostatic recording devices for facsimile systems and the like |
Country Status (4)
Country | Link |
---|---|
US (1) | US3870257A (en) |
JP (1) | JPS5532067B2 (en) |
GB (1) | GB1444727A (en) |
NL (1) | NL160693C (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5238229A (en) * | 1975-08-26 | 1977-03-24 | Nec Corp | Gas discharge device |
JPS5948908B2 (en) * | 1976-02-27 | 1984-11-29 | 日本エタニツトパイプ株式会社 | Fibrous cement pipe and its manufacturing method |
JPS57100212U (en) * | 1980-12-09 | 1982-06-19 | ||
JPS6236263Y2 (en) * | 1981-06-02 | 1987-09-16 | ||
JPS5822709U (en) * | 1981-07-08 | 1983-02-12 | 三菱電機株式会社 | rotary transformer |
JPS5944017U (en) * | 1982-09-14 | 1984-03-23 | 日本フエライト株式会社 | Shot ring mounting structure of rotating transformer |
JPS59101807A (en) * | 1982-12-02 | 1984-06-12 | Nippon Ferrite Ltd | Rotary transformer |
JPS61186217U (en) * | 1985-05-14 | 1986-11-20 | ||
JPS6329910U (en) * | 1986-08-11 | 1988-02-27 | ||
JPS63118211U (en) * | 1987-01-23 | 1988-07-30 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3209324A (en) * | 1962-08-15 | 1965-09-28 | Otis Elevator Co | Elevator trouble reporting system |
US3750190A (en) * | 1970-11-20 | 1973-07-31 | Nippon Electric Co | Electrostatic recording device utilizing the electric potential in a discharge space |
-
1972
- 1972-08-22 JP JP8428172A patent/JPS5532067B2/ja not_active Expired
-
1973
- 1973-08-20 US US389743A patent/US3870257A/en not_active Expired - Lifetime
- 1973-08-20 NL NL7311438.A patent/NL160693C/en not_active IP Right Cessation
- 1973-08-22 GB GB3978473A patent/GB1444727A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS4940611A (en) | 1974-04-16 |
US3870257A (en) | 1975-03-11 |
DE2342436B2 (en) | 1976-10-07 |
DE2342436A1 (en) | 1974-03-21 |
JPS5532067B2 (en) | 1980-08-22 |
NL7311438A (en) | 1974-02-26 |
NL160693C (en) | 1979-11-15 |
NL160693B (en) | 1979-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |