JPS5993459A - Recording apparatus - Google Patents

Recording apparatus

Info

Publication number
JPS5993459A
JPS5993459A JP57203359A JP20335982A JPS5993459A JP S5993459 A JPS5993459 A JP S5993459A JP 57203359 A JP57203359 A JP 57203359A JP 20335982 A JP20335982 A JP 20335982A JP S5993459 A JPS5993459 A JP S5993459A
Authority
JP
Japan
Prior art keywords
original
region
latent image
designated
keys
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
JP57203359A
Other languages
Japanese (ja)
Inventor
Chiharu Kobayashi
Original Assignee
Konishiroku Photo Ind 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 Konishiroku Photo Ind Co Ltd filed Critical Konishiroku Photo Ind Co Ltd
Priority to JP57203359A priority Critical patent/JPS5993459A/en
Publication of JPS5993459A publication Critical patent/JPS5993459A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/04Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/045Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas

Abstract

PURPOSE:To obtain a copy of constant density even if an original deep on the background and one light thereon are copied at the same time, by installing a means for lowering the potential of a latent image on the specified part of a photosensitive drum surface. CONSTITUTION:The specified region of the original is designated by feeding each 2 points (X1, X2), (Y1, Y2) of the 2 sides X, Y of an original platen A with ten keys. The surface of a photosensitive drum having an electrostatic latent image formed after the steps of charging and imagewise exposure is exposed to light scanning of the array of light emitting diodes lighted selectively to weaken the electrostatic latent image on the part corresponding to the designated region. As a result, in the case of, e.g., newspaper deep on the ground at the designated region, and a usual original on the other region, a copy equal in density can be obtained. The illumination of the light emitting diodes can be changed in ten steps with input of the ten keys, so it can be adapted to a variety of ground densities.
JP57203359A 1982-11-18 1982-11-18 Recording apparatus Pending JPS5993459A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57203359A JPS5993459A (en) 1982-11-18 1982-11-18 Recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57203359A JPS5993459A (en) 1982-11-18 1982-11-18 Recording apparatus

Publications (1)

Publication Number Publication Date
JPS5993459A true JPS5993459A (en) 1984-05-29

Family

ID=16472720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57203359A Pending JPS5993459A (en) 1982-11-18 1982-11-18 Recording apparatus

Country Status (1)

Country Link
JP (1) JPS5993459A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6195374A (en) * 1984-10-17 1986-05-14 Matsushita Electric Ind Co Ltd Electrophotographic device
JPS6323178A (en) * 1986-06-04 1988-01-30 Minolta Camera Co Ltd Copying machine with editing function
US4740818A (en) * 1985-12-16 1988-04-26 Eastman Kodak Company Electrophotographic reproduction apparatus and method with selective screening
JPS63106669A (en) * 1986-03-06 1988-05-11 Sanyo Electric Co Ltd Electronic copying machine provided with editing function
US4794421A (en) * 1983-05-12 1988-12-27 Eastman Kodak Company Apparatus and method for electrophotographically producing copies from originals having continuous-tone and other content

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794421A (en) * 1983-05-12 1988-12-27 Eastman Kodak Company Apparatus and method for electrophotographically producing copies from originals having continuous-tone and other content
JPS6195374A (en) * 1984-10-17 1986-05-14 Matsushita Electric Ind Co Ltd Electrophotographic device
US4740818A (en) * 1985-12-16 1988-04-26 Eastman Kodak Company Electrophotographic reproduction apparatus and method with selective screening
JPS63106669A (en) * 1986-03-06 1988-05-11 Sanyo Electric Co Ltd Electronic copying machine provided with editing function
JPS6323178A (en) * 1986-06-04 1988-01-30 Minolta Camera Co Ltd Copying machine with editing function

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