JPS5724953A - Electrophotographic composite recording method - Google Patents

Electrophotographic composite recording method

Info

Publication number
JPS5724953A
JPS5724953A JP10037780A JP10037780A JPS5724953A JP S5724953 A JPS5724953 A JP S5724953A JP 10037780 A JP10037780 A JP 10037780A JP 10037780 A JP10037780 A JP 10037780A JP S5724953 A JPS5724953 A JP S5724953A
Authority
JP
Japan
Prior art keywords
image
layer
light
upper layer
red light
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
JP10037780A
Other languages
Japanese (ja)
Inventor
Motoichiro Inoue
Takashi Yano
Kazuo Murai
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 JP10037780A priority Critical patent/JPS5724953A/en
Publication of JPS5724953A publication Critical patent/JPS5724953A/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
    • G03G15/04—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
    • 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
    • G03G15/043—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 with means for controlling illumination or exposure
    • G03G15/0435—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 with means for controlling illumination or exposure by introducing an optical element in the optical path, e.g. a filter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)

Abstract

PURPOSE:To execute composite record of an image and characters/symbols, by twice exposing a photoreceptor consisting of 2 photoconductive layers different from each other in a photosensitive wavelength region. CONSTITUTION:A photosensitive drum 1 consists of a lower eutectic layer sensitive to lights excluding a red light and an upper Se-Te layer sensitive to the red light. The drum 1 is irradiaed by a light emitted from a lamp 52 through a red filter 50, and at the same time charged positively with a charger 6a2 to make the upper layer conductive, resulting in charging the upside of the lower layer positively. After negatively charging the upper face of the upper layer with the charger 6a2, an original image 60 is projected on the upper layer, resulting in being sensed and forming a negative electrostatic image on the upper face of the upper layer. Then, it is irradiated with a light freed of the red light through a green filter using a patternwise light-emitting device to transmit information of characters and symbols, and to form a positive electrostatic image on the upper face of the lower layer. It is developed using a positive bias voltage, permitting a composite image of the original image and the pattern image to be obtained.
JP10037780A 1980-07-22 1980-07-22 Electrophotographic composite recording method Pending JPS5724953A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10037780A JPS5724953A (en) 1980-07-22 1980-07-22 Electrophotographic composite recording method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10037780A JPS5724953A (en) 1980-07-22 1980-07-22 Electrophotographic composite recording method

Publications (1)

Publication Number Publication Date
JPS5724953A true JPS5724953A (en) 1982-02-09

Family

ID=14272328

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10037780A Pending JPS5724953A (en) 1980-07-22 1980-07-22 Electrophotographic composite recording method

Country Status (1)

Country Link
JP (1) JPS5724953A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59168468A (en) * 1983-03-15 1984-09-22 Canon Inc Image forming device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59168468A (en) * 1983-03-15 1984-09-22 Canon Inc Image forming device

Similar Documents

Publication Publication Date Title
JPS5532050A (en) Composite-copying method of information image
JPS5724953A (en) Electrophotographic composite recording method
JPS5391743A (en) Image formation process
JPS5782848A (en) Electrophotographing method
EP0140011A3 (en) Electrophotographic apparatus including a photoconductor belt
JPS5782850A (en) Electrophotographic method
JPS54137345A (en) Development for dichronic zerography
JPS5782849A (en) Electrophotographing method
JPS54112634A (en) Electrophotographic process and device
JPS5774767A (en) Electrophotographic device
JPS5723952A (en) Bicolor electrophotographic method
JPS566255A (en) Electrophotographic apparatus
JPS5720745A (en) Method for partially magnetized electrophotography
JPS5774766A (en) Electrophotographic device
JPS566265A (en) Multichromatic electrophotographic copying method
JPS55111952A (en) Electrophotographic method
JPH01193874A (en) Multicolor image forming method
JPS55110260A (en) Two-color electrophotographic copying method
JPS5491330A (en) Copying method for dichroic zerography
JPS56167156A (en) Simultaneous copying method for normal character and braille type
JPS57111570A (en) Visible-image transferring method of copying machine
JPS5654459A (en) Film overlay device of electrophotographic apparatus
JPS54143139A (en) Copying method for dichroic zerography
JPS57104950A (en) Dichromatic recording method
JPS5470837A (en) Image formation method