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JPS5425814A - Copier for confidential originals - Google Patents

Copier for confidential originals

Info

Publication number
JPS5425814A
JPS5425814A JP9120377A JP9120377A JPS5425814A JP S5425814 A JPS5425814 A JP S5425814A JP 9120377 A JP9120377 A JP 9120377A JP 9120377 A JP9120377 A JP 9120377A JP S5425814 A JPS5425814 A JP S5425814A
Authority
JP
Japan
Prior art keywords
originals
confidential
copier
undecodable
cpu
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
JP9120377A
Other languages
Japanese (ja)
Inventor
Toshio Kano
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 JP9120377A priority Critical patent/JPS5425814A/en
Publication of JPS5425814A publication Critical patent/JPS5425814A/en
Pending legal-status Critical Current

Links

Landscapes

  • Combination Of More Than One Step In Electrophotography (AREA)
  • Projection-Type Copiers In General (AREA)

Abstract

PURPOSE: To make possible obtaining undecodable copy images from originals and vice versa simply by converting confidential information picture elements to time series signals with a solid state image sensor and processing these with a CPU.
COPYRIGHT: (C)1979,JPO&Japio
JP9120377A 1977-07-29 1977-07-29 Copier for confidential originals Pending JPS5425814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9120377A JPS5425814A (en) 1977-07-29 1977-07-29 Copier for confidential originals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9120377A JPS5425814A (en) 1977-07-29 1977-07-29 Copier for confidential originals

Publications (1)

Publication Number Publication Date
JPS5425814A true JPS5425814A (en) 1979-02-27

Family

ID=14019862

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9120377A Pending JPS5425814A (en) 1977-07-29 1977-07-29 Copier for confidential originals

Country Status (1)

Country Link
JP (1) JPS5425814A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4021783A1 (en) * 1990-07-11 1992-01-16 Holzer Walter Copying and enciphering device - includes intermediate store for scanned data prior to encoding via keyboard or magnetic card
US5512977A (en) * 1992-10-21 1996-04-30 Pumpkin House Incorporated Copying machine with encryption function
DE4021061C2 (en) * 1990-07-04 1998-11-05 Holzer Walter Prof Dr H C Ing Method for coding facsimile fax copies

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4021061C2 (en) * 1990-07-04 1998-11-05 Holzer Walter Prof Dr H C Ing Method for coding facsimile fax copies
DE4021783A1 (en) * 1990-07-11 1992-01-16 Holzer Walter Copying and enciphering device - includes intermediate store for scanned data prior to encoding via keyboard or magnetic card
US5512977A (en) * 1992-10-21 1996-04-30 Pumpkin House Incorporated Copying machine with encryption function

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