JPS5763559A - Both-side printer - Google Patents

Both-side printer

Info

Publication number
JPS5763559A
JPS5763559A JP55137633A JP13763380A JPS5763559A JP S5763559 A JPS5763559 A JP S5763559A JP 55137633 A JP55137633 A JP 55137633A JP 13763380 A JP13763380 A JP 13763380A JP S5763559 A JPS5763559 A JP S5763559A
Authority
JP
Japan
Prior art keywords
photoconductive drum
laser beam
same time
drums
recording paper
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
JP55137633A
Other languages
Japanese (ja)
Inventor
Masayasu Anzai
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55137633A priority Critical patent/JPS5763559A/en
Publication of JPS5763559A publication Critical patent/JPS5763559A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/203—Simultaneous scanning of two or more separate pictures, e.g. two sides of the same sheet

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Counters In Electrophotography And Two-Sided Copying (AREA)
  • Fixing For Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To simplify device constitution by fixing two toner images on the top and reverse surfaces of recording paper at the same time under pressure. CONSTITUTION:a photoconductive drum 1 is charged uniformly by a charger 3 and irradiated with a laser beam 24 to form a latent image, which is developed by a developing device 6 to form one toner image. The laser beam 24 is focused on the photoconductive drum 1 through a semiconductor laser 20, a convergent lens 21, a rotary lens 18, and mirrors 16, 14 to scan on the surface. Similarly, the other toner image is formed on the other photoconductive drum 2. Thus, toner images formed on two drums 1 and 2 are transferred and fixed on both the surfaces of recording paper 10, obtained by feeding rolled paper 7 to a cuter 9 by feed rollers 8 and cutting it to the desired size, at the same time by being pressed by the photoconductive drums 1 and 2. If necessary, a bias for assisting the transfer is applied by a bias power source 13.
JP55137633A 1980-10-03 1980-10-03 Both-side printer Pending JPS5763559A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55137633A JPS5763559A (en) 1980-10-03 1980-10-03 Both-side printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55137633A JPS5763559A (en) 1980-10-03 1980-10-03 Both-side printer

Publications (1)

Publication Number Publication Date
JPS5763559A true JPS5763559A (en) 1982-04-17

Family

ID=15203199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55137633A Pending JPS5763559A (en) 1980-10-03 1980-10-03 Both-side printer

Country Status (1)

Country Link
JP (1) JPS5763559A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58173777A (en) * 1982-04-05 1983-10-12 Nec Corp Copying device
JPS6250868A (en) * 1985-08-30 1987-03-05 Canon Inc Image recording device
US5905930A (en) * 1997-03-19 1999-05-18 Fujitsu Limited Image forming apparatus
WO2005096103A1 (en) * 2004-03-29 2005-10-13 Eastman Kodak Company Synchronous duplex printing systems

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58173777A (en) * 1982-04-05 1983-10-12 Nec Corp Copying device
JPH0143954B2 (en) * 1982-04-05 1989-09-25 Nippon Electric Co
JPS6250868A (en) * 1985-08-30 1987-03-05 Canon Inc Image recording device
US5905930A (en) * 1997-03-19 1999-05-18 Fujitsu Limited Image forming apparatus
WO2005096103A1 (en) * 2004-03-29 2005-10-13 Eastman Kodak Company Synchronous duplex printing systems
US7469119B2 (en) 2004-03-29 2008-12-23 Eastman Kodak Company Synchronous duplex printing systems with intermediate transfer members

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