JPS57141657A - Both-side copying apparatus - Google Patents

Both-side copying apparatus

Info

Publication number
JPS57141657A
JPS57141657A JP56200759A JP20075981A JPS57141657A JP S57141657 A JPS57141657 A JP S57141657A JP 56200759 A JP56200759 A JP 56200759A JP 20075981 A JP20075981 A JP 20075981A JP S57141657 A JPS57141657 A JP S57141657A
Authority
JP
Japan
Prior art keywords
paper
copying
terminal
extrusion
roller
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
JP56200759A
Other languages
Japanese (ja)
Inventor
Hiroshi Nitanda
Tsuneki Inuzuka
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP56200759A priority Critical patent/JPS57141657A/en
Publication of JPS57141657A publication Critical patent/JPS57141657A/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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/23—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
    • G03G15/231—Arrangements for copying on both sides of a recording or image-receiving material

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Conveyance By Endless Belt Conveyors (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Counters In Electrophotography And Two-Sided Copying (AREA)
  • Paper Feeding For Electrophotography (AREA)

Abstract

PURPOSE:To execute both-side copying at high speed with simple structure, by making a copy on the other side of a one-side copied paper without once extruding the one-side copied paper with a copying paper detection signal and a specified timing signal. CONSTITUTION:A one-side copied transfer paper is received in a container formed on the route of single-side copying at high speed by reverse rotation of an extrusion roller in accordance with detection of the backward, end of the paper, left there on standby, held on the forward end with a register roller. When this paper is detected optically, a high-level paper detection signal PDPC indicating that the paper is set at the standby position appears on a terminal 212. On the other hand, an optical system forward-movement pulse PFSA on a terminal 301, a both-side copy latch pulse BCPL on a terminal 217, an optical system forward-movement latch pulse on a terminal 284, and the like control signals appear, and paper feed command PECP, etc. are produced via an AND gate 305, an OR circuit 306, AND gates 310, 308, etc., to control the register roller, an extrusion roller, etc., executing other-side copying and extrusion of the paper, thus permitting even both-side copying on a single sheet of paper to be rapidly done with simple structure.
JP56200759A 1981-12-11 1981-12-11 Both-side copying apparatus Pending JPS57141657A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56200759A JPS57141657A (en) 1981-12-11 1981-12-11 Both-side copying apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56200759A JPS57141657A (en) 1981-12-11 1981-12-11 Both-side copying apparatus

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP49142922A Division JPS5168836A (en) 1974-12-12 1974-12-12

Publications (1)

Publication Number Publication Date
JPS57141657A true JPS57141657A (en) 1982-09-02

Family

ID=16429697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56200759A Pending JPS57141657A (en) 1981-12-11 1981-12-11 Both-side copying apparatus

Country Status (1)

Country Link
JP (1) JPS57141657A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4950943A (en) * 1972-09-14 1974-05-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4950943A (en) * 1972-09-14 1974-05-17

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