JPS5693568A - Printing device - Google Patents

Printing device

Info

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
Application number
JP17179979A
Other languages
Japanese (ja)
Other versions
JPS6335002B2 (en
Inventor
Kenji Aoki
Haruo Nakamura
Sadatsugu Miura
Mitsuo Nagata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP17179979A priority Critical patent/JPS5693568A/en
Priority to US06/220,484 priority patent/US4386836A/en
Publication of JPS5693568A publication Critical patent/JPS5693568A/en
Publication of JPS6335002B2 publication Critical patent/JPS6335002B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • 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)
  • Liquid Crystal (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
JP17179979A 1979-12-28 1979-12-28 Printing device Granted JPS5693568A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (15)

* Cited by examiner, † Cited by third party
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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