JPS6486186A - Copying method - Google Patents

Copying method

Info

Publication number
JPS6486186A
JPS6486186A JP24281987A JP24281987A JPS6486186A JP S6486186 A JPS6486186 A JP S6486186A JP 24281987 A JP24281987 A JP 24281987A JP 24281987 A JP24281987 A JP 24281987A JP S6486186 A JPS6486186 A JP S6486186A
Authority
JP
Japan
Prior art keywords
copy
image
black
read
becomes
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
JP24281987A
Other languages
Japanese (ja)
Inventor
Minoru Iwamoto
Tsuneo Kurotori
Manabu Mochizuki
Takashi Ishizuka
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 JP24281987A priority Critical patent/JPS6486186A/en
Publication of JPS6486186A publication Critical patent/JPS6486186A/en
Pending legal-status Critical Current

Links

Landscapes

  • Cleaning In Electrography (AREA)
  • Color Electrophotography (AREA)

Abstract

PURPOSE:To make an original entirely black, to form a solid black copy image, and to disable the copy image to be read when a copy is taken again by synthesizing an image to be copied by using toner which has the same color, transparency, and no sensitivity to a photosensitive body after undercolor formation. CONSTITUTION:A specified area part of an obtained copy can be read, but a copy obtained from said copy becomes entirely black and can not be read by stamping a copy inhibition seal impression and specifying a copy inhibited area. In this case, transparent toner is used to take a copy and then when a copy is further taken again, the whole original becomes black because of the characteristics of the photosensitive body and the copy image is entirely black. Consequently, the seal inhibition seal becomes effective.
JP24281987A 1987-09-29 1987-09-29 Copying method Pending JPS6486186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24281987A JPS6486186A (en) 1987-09-29 1987-09-29 Copying method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24281987A JPS6486186A (en) 1987-09-29 1987-09-29 Copying method

Publications (1)

Publication Number Publication Date
JPS6486186A true JPS6486186A (en) 1989-03-30

Family

ID=17094763

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24281987A Pending JPS6486186A (en) 1987-09-29 1987-09-29 Copying method

Country Status (1)

Country Link
JP (1) JPS6486186A (en)

Similar Documents

Publication Publication Date Title
JPS5442141A (en) Developing method
JPS5430043A (en) Copier acting as facsimile
JPS6486186A (en) Copying method
JPS53105230A (en) Optimum maintaining method of electrophotographical duplication images
JPS53121623A (en) Dichromatic electrophotographic copying method
GB1268130A (en) Photo-reproduction
JPS52147444A (en) Electrostatic latent image development
JPS5224530A (en) Image formation method
JPS5417846A (en) Dichromatic electrophotographic copying method
JPS538137A (en) Copying process for secret document
JPS5642242A (en) Electrophotographic method
JPS5389432A (en) Electrophotography
JPS5224531A (en) Image formation method
JPS53149032A (en) Zerography
JPS5257831A (en) Electrophotographic double recording
JPS5387231A (en) Original depressor for electrophotographic copier
JPS52110636A (en) Prevention of copying
JPS53130036A (en) Toner for electrical latent image
JPS53103742A (en) Xerpgraphic photosensitive body
JPS53123934A (en) Electrophotography
JPS5424634A (en) Method of copying desired color alone from multichromatic originals
JPS5355034A (en) Developing solution for electrophotography
JPS51148431A (en) Electronic copying device
GB1396719A (en) Method for electrophotographic exposure
JPS5287040A (en) Electrophotographic means