JPS57171367A - Electrostatic printer - Google Patents

Electrostatic printer

Info

Publication number
JPS57171367A
JPS57171367A JP5621081A JP5621081A JPS57171367A JP S57171367 A JPS57171367 A JP S57171367A JP 5621081 A JP5621081 A JP 5621081A JP 5621081 A JP5621081 A JP 5621081A JP S57171367 A JPS57171367 A JP S57171367A
Authority
JP
Japan
Prior art keywords
character
drum
time
image
development
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
JP5621081A
Other languages
Japanese (ja)
Inventor
Makoto Kobu
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP5621081A priority Critical patent/JPS57171367A/en
Publication of JPS57171367A publication Critical patent/JPS57171367A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G03G15/221—Machines other than electrographic copiers, e.g. electrophotographic cameras, electrostatic typewriters
    • 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
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/04036—Details of illuminating systems, e.g. lamps, reflectors
    • G03G15/04045—Details of illuminating systems, e.g. lamps, reflectors for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers

Abstract

PURPOSE:To improve the performance of a typewriter up to that of a photocomposer, by forming an image through the processes of formation of a latent image, development, transcription and fixing respectively for the selected character train. CONSTITUTION:The selection of character is carried out for the character train to be printed through a keyboard operation 20, and the desired characters on a matrix character film 21 within an exposure device 4 are set at a prescribed irradiating position by a character selecting mechanism 22. The light is irradiated from a light source 23 to have the formation of image and exposure on the surface of a drum 2 having a small diameter via a projecting optical system 24. Thus an electrostatic latent image is formed on the drum. In the image forming process on the surface of the drum 2, the time from the primary charging to the development is prescribed with the allowance dark attenuation time defined as the maximum factor. Then the stay time of the drum is decided for an exposure device A. The time from the primary charging to the development is set within the allowance dark attenuation time for every character of a picture, and as a result, the even quality is secured at every part.
JP5621081A 1981-04-16 1981-04-16 Electrostatic printer Pending JPS57171367A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5621081A JPS57171367A (en) 1981-04-16 1981-04-16 Electrostatic printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5621081A JPS57171367A (en) 1981-04-16 1981-04-16 Electrostatic printer

Publications (1)

Publication Number Publication Date
JPS57171367A true JPS57171367A (en) 1982-10-21

Family

ID=13020736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5621081A Pending JPS57171367A (en) 1981-04-16 1981-04-16 Electrostatic printer

Country Status (1)

Country Link
JP (1) JPS57171367A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0342254A (en) * 1989-05-26 1991-02-22 Kentek Inf Syst Inc Electronic printing typewriter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0342254A (en) * 1989-05-26 1991-02-22 Kentek Inf Syst Inc Electronic printing typewriter

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