JPH0152748B2 - - Google Patents

Info

Publication number
JPH0152748B2
JPH0152748B2 JP55182768A JP18276880A JPH0152748B2 JP H0152748 B2 JPH0152748 B2 JP H0152748B2 JP 55182768 A JP55182768 A JP 55182768A JP 18276880 A JP18276880 A JP 18276880A JP H0152748 B2 JPH0152748 B2 JP H0152748B2
Authority
JP
Japan
Prior art keywords
code
invalid code
copying
key
invalid
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.)
Expired
Application number
JP55182768A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57108861A (en
Inventor
Nachio Seko
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 JP55182768A priority Critical patent/JPS57108861A/ja
Publication of JPS57108861A publication Critical patent/JPS57108861A/ja
Publication of JPH0152748B2 publication Critical patent/JPH0152748B2/ja
Granted 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
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/04—Preventing copies being made of an original

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
JP55182768A 1980-12-25 1980-12-25 Management device for copying machine Granted JPS57108861A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55182768A JPS57108861A (en) 1980-12-25 1980-12-25 Management device for copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55182768A JPS57108861A (en) 1980-12-25 1980-12-25 Management device for copying machine

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2257068A Division JPH03141370A (ja) 1990-09-28 1990-09-28 画像形成装置の管理装置

Publications (2)

Publication Number Publication Date
JPS57108861A JPS57108861A (en) 1982-07-07
JPH0152748B2 true JPH0152748B2 (enrdf_load_stackoverflow) 1989-11-09

Family

ID=16124075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55182768A Granted JPS57108861A (en) 1980-12-25 1980-12-25 Management device for copying machine

Country Status (1)

Country Link
JP (1) JPS57108861A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182779A (ja) * 1982-04-19 1983-10-25 Mita Ind Co Ltd カ−ドを利用した複写機
JPS62275277A (ja) * 1986-05-23 1987-11-30 Fujita Corp 複写器の複写枚数計数制御装置
JPH02265784A (ja) * 1989-04-05 1990-10-30 Riso Kagaku Corp 印刷装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5472057A (en) * 1977-11-21 1979-06-09 Ricoh Co Ltd Controlling method of copying machine
JPS54146558A (en) * 1978-05-09 1979-11-15 Fujitsu Ltd Credit authorization system
JPS55115157A (en) * 1979-02-26 1980-09-04 Ricoh Co Ltd Picture processing unit

Also Published As

Publication number Publication date
JPS57108861A (en) 1982-07-07

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