JPS5693568A - Printing device - Google Patents
Printing deviceInfo
- Publication number
- JPS5693568A JPS5693568A JP17179979A JP17179979A JPS5693568A JP S5693568 A JPS5693568 A JP S5693568A JP 17179979 A JP17179979 A JP 17179979A JP 17179979 A JP17179979 A JP 17179979A JP S5693568 A JPS5693568 A JP S5693568A
- Authority
- JP
- Japan
- Prior art keywords
- sec
- liquid crystal
- light
- light valve
- printing device
- 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.)
- Granted
Links
Landscapes
- Liquid Crystal (AREA)
- Fax Reproducing Arrangements (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
- Projection-Type Copiers In General (AREA)
Abstract
PURPOSE: To obtain the printing device which is highly reliable, small-sized, inexpensive, of high quality and of high speed by providing a photosignal generating part having a liquid crystal light valve driven by a two-frequency driving method by using liquid-crystal material generating the dielectric relief at low frequency and also having a liquid crystal driving circuit.
CONSTITUTION: Deflection plates are arranged on both surfaces of a liquid crystal layer with torsion nematic orientation so that they are perpendicular to each other, while the liquid crystal light valve which intercepts the light when fL is impressed and makes the light pass when fH is imressed is employed. By making sweep in a part O which is the state that a shutter is opened in such a manner that the value of fH approaches fL gradually, an excellent characteristic of response to the transmission of light producing no domain is obtained. When an opening time O is set at 1m/sec and closing times C1 and C2 are set at 1m/sec and 3m/sec respectively, the minimum time of the cycle of writing-in for 1 dot turns to be O+C1=2m/sec, thus showing the characteristic of quick response.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17179979A JPS5693568A (en) | 1979-12-28 | 1979-12-28 | Printing device |
US06/220,484 US4386836A (en) | 1979-12-28 | 1980-12-29 | Electro-photographic printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17179979A JPS5693568A (en) | 1979-12-28 | 1979-12-28 | Printing device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60169975A Division JPS6150115A (en) | 1985-08-01 | 1985-08-01 | Liquid crystal light valve |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5693568A true JPS5693568A (en) | 1981-07-29 |
JPS6335002B2 JPS6335002B2 (en) | 1988-07-13 |
Family
ID=15929910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17179979A Granted JPS5693568A (en) | 1979-12-28 | 1979-12-28 | Printing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5693568A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5823016A (en) * | 1981-08-04 | 1983-02-10 | Seiko Epson Corp | Liquid-crystal light valve |
JPS5878121A (en) * | 1981-11-04 | 1983-05-11 | Seiko Epson Corp | Optical signal generating device |
JPS5966662A (en) * | 1982-10-06 | 1984-04-16 | ダイキン工業株式会社 | Heat pump type heating apparatus |
JPS5991417A (en) * | 1982-11-18 | 1984-05-26 | Seiko Epson Corp | Liquid crystal optical device |
JPS59224968A (en) * | 1983-06-03 | 1984-12-17 | Fuji Xerox Co Ltd | Image projecting device |
JPS6015624A (en) * | 1983-07-08 | 1985-01-26 | Hitachi Ltd | Driving method of liquid crystal switch element for printer |
JPS60103791A (en) * | 1983-11-09 | 1985-06-08 | Seiko Epson Corp | Color video copy |
JPS61267067A (en) * | 1985-05-22 | 1986-11-26 | Ushio Inc | Liquid crystal printer |
JPS62173268A (en) * | 1986-01-27 | 1987-07-30 | Casio Comput Co Ltd | Liquid-crystal printer |
JPS63315U (en) * | 1986-06-20 | 1988-01-05 |
-
1979
- 1979-12-28 JP JP17179979A patent/JPS5693568A/en active Granted
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0222362B2 (en) * | 1981-08-04 | 1990-05-18 | Seiko Epson Corp | |
JPS5823016A (en) * | 1981-08-04 | 1983-02-10 | Seiko Epson Corp | Liquid-crystal light valve |
JPS5878121A (en) * | 1981-11-04 | 1983-05-11 | Seiko Epson Corp | Optical signal generating device |
JPS5966662A (en) * | 1982-10-06 | 1984-04-16 | ダイキン工業株式会社 | Heat pump type heating apparatus |
JPH0360023B2 (en) * | 1982-10-06 | 1991-09-12 | Daikin Ind Ltd | |
JPS5991417A (en) * | 1982-11-18 | 1984-05-26 | Seiko Epson Corp | Liquid crystal optical device |
JPS59224968A (en) * | 1983-06-03 | 1984-12-17 | Fuji Xerox Co Ltd | Image projecting device |
JPH0411062B2 (en) * | 1983-06-03 | 1992-02-27 | ||
JPS6015624A (en) * | 1983-07-08 | 1985-01-26 | Hitachi Ltd | Driving method of liquid crystal switch element for printer |
JPH0228125B2 (en) * | 1983-07-08 | 1990-06-21 | Hitachi Ltd | |
JPS60103791A (en) * | 1983-11-09 | 1985-06-08 | Seiko Epson Corp | Color video copy |
JPS61267067A (en) * | 1985-05-22 | 1986-11-26 | Ushio Inc | Liquid crystal printer |
JPS62173268A (en) * | 1986-01-27 | 1987-07-30 | Casio Comput Co Ltd | Liquid-crystal printer |
JPS63315U (en) * | 1986-06-20 | 1988-01-05 | ||
JPH0522907Y2 (en) * | 1986-06-20 | 1993-06-11 |
Also Published As
Publication number | Publication date |
---|---|
JPS6335002B2 (en) | 1988-07-13 |
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