JPS57186780A - Electrophotographic printer - Google Patents

Electrophotographic printer

Info

Publication number
JPS57186780A
JPS57186780A JP7188081A JP7188081A JPS57186780A JP S57186780 A JPS57186780 A JP S57186780A JP 7188081 A JP7188081 A JP 7188081A JP 7188081 A JP7188081 A JP 7188081A JP S57186780 A JPS57186780 A JP S57186780A
Authority
JP
Japan
Prior art keywords
image
liquid
crystal
optical shutter
cells
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.)
Pending
Application number
JP7188081A
Other languages
Japanese (ja)
Inventor
Kazuo Inamori
Katsuhiko Gotoda
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.)
KIYOUSERA KK
Kyocera Corp
Original Assignee
KIYOUSERA KK
Kyocera Corp
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 KIYOUSERA KK, Kyocera Corp filed Critical KIYOUSERA KK
Priority to JP7188081A priority Critical patent/JPS57186780A/en
Priority to US06/375,042 priority patent/US4527886A/en
Priority to DE19823217858 priority patent/DE3217858A1/en
Publication of JPS57186780A publication Critical patent/JPS57186780A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
    • G06K15/1238—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers simultaneously exposing more than one point
    • G06K15/1242—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers simultaneously exposing more than one point on one main scanning line
    • G06K15/1252—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers simultaneously exposing more than one point on one main scanning line using an array of light modulators, e.g. a linear array
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/32—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head

Abstract

PURPOSE:To reduce the size of a printer by making an image electric signal into a visible image by a liquid-crystal optical shutter. CONSTITUTION:Numbers of liquid-crystal cells each consisting of polarizing plates 27 and 28, electrodes 22 and 23, transparent substrates 20 and 21, a spacer 24, liquid crystal 25, and a metallic vapor-deposited film 29 are arrayed in a line in such a way that 10 cells are provided at every 1mm. interval to constitute an optical shutter 16, which is driven by an image signal from a facsimile computer to allow light from a lamp 17 to pass through it selectively, thus exposing an amorphous silicon photosensitive drum 1 charged negatively a charger 3. A latent image formed on the drum 1 is inverted and developed with negatively charged toner in a developing device 6. Thus, the positive toner image obtained from the negative image signal is transferred to transfer paper P to obtain a copy.
JP7188081A 1981-05-12 1981-05-12 Electrophotographic printer Pending JPS57186780A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP7188081A JPS57186780A (en) 1981-05-12 1981-05-12 Electrophotographic printer
US06/375,042 US4527886A (en) 1981-05-12 1982-05-05 Electrophotographic recording apparatus having both functions of copying and printing
DE19823217858 DE3217858A1 (en) 1981-05-12 1982-05-12 ELECTROPHOTOGRAPHIC COPIER AND PRINTING DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7188081A JPS57186780A (en) 1981-05-12 1981-05-12 Electrophotographic printer

Publications (1)

Publication Number Publication Date
JPS57186780A true JPS57186780A (en) 1982-11-17

Family

ID=13473269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7188081A Pending JPS57186780A (en) 1981-05-12 1981-05-12 Electrophotographic printer

Country Status (1)

Country Link
JP (1) JPS57186780A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53139435A (en) * 1977-05-09 1978-12-05 Static Systems Corp Electronic typewriter
JPS5598721A (en) * 1978-10-31 1980-07-28 Thomson Csf Copier
JPS5624372A (en) * 1979-08-02 1981-03-07 Ricoh Co Ltd Image recording method and its device
JPS5636062A (en) * 1979-08-31 1981-04-09 Aichi Steel Works Ltd Measuring apparatus for residual magnetism
JPS5763507A (en) * 1980-10-06 1982-04-17 Seiko Epson Corp Printer head driven by liquid crystal
JPS57120914A (en) * 1981-01-19 1982-07-28 Seiko Epson Corp Optical signal generator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53139435A (en) * 1977-05-09 1978-12-05 Static Systems Corp Electronic typewriter
JPS5598721A (en) * 1978-10-31 1980-07-28 Thomson Csf Copier
JPS5624372A (en) * 1979-08-02 1981-03-07 Ricoh Co Ltd Image recording method and its device
JPS5636062A (en) * 1979-08-31 1981-04-09 Aichi Steel Works Ltd Measuring apparatus for residual magnetism
JPS5763507A (en) * 1980-10-06 1982-04-17 Seiko Epson Corp Printer head driven by liquid crystal
JPS57120914A (en) * 1981-01-19 1982-07-28 Seiko Epson Corp Optical signal generator

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