JPS54115249A - Copying appratus - Google Patents

Copying appratus

Info

Publication number
JPS54115249A
JPS54115249A JP2258278A JP2258278A JPS54115249A JP S54115249 A JPS54115249 A JP S54115249A JP 2258278 A JP2258278 A JP 2258278A JP 2258278 A JP2258278 A JP 2258278A JP S54115249 A JPS54115249 A JP S54115249A
Authority
JP
Japan
Prior art keywords
copying
recording means
superposed
photosensitive drum
latent images
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
JP2258278A
Other languages
Japanese (ja)
Inventor
Yojiro Sato
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 JP2258278A priority Critical patent/JPS54115249A/en
Publication of JPS54115249A publication Critical patent/JPS54115249A/en
Pending legal-status Critical Current

Links

Landscapes

  • Combination Of More Than One Step In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To enable superposed copying or partly removed copying to be performed simply by providing the two recording means for forming electrostatic latent images by charging photoreceptor thereby making the charging polarities of one of recording means changeable to positive and negative. CONSTITUTION:This is the apparatus of performing superposed copying or partily removed copying with a pin tube 13 being a second recording means to a photosensitive drum 8 having been formed with latent images with a first recording means by providing the pin tube 13 being the second recording means of recording the picture signals having been received on the photosensitive drum 8 besides the first recording means of exposing an original 2 with the optical system including a light source 3 and mirrors 4 thru 7, etc. and forming the latent images on the photosensitive drum 8, whereby the potentials to be applied to the pins of the pin tube 13 are changed over to positive or negative, whereby the superposed copying or partly removed copying may be performed freely and easily.
JP2258278A 1978-02-28 1978-02-28 Copying appratus Pending JPS54115249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2258278A JPS54115249A (en) 1978-02-28 1978-02-28 Copying appratus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2258278A JPS54115249A (en) 1978-02-28 1978-02-28 Copying appratus

Publications (1)

Publication Number Publication Date
JPS54115249A true JPS54115249A (en) 1979-09-07

Family

ID=12086839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2258278A Pending JPS54115249A (en) 1978-02-28 1978-02-28 Copying appratus

Country Status (1)

Country Link
JP (1) JPS54115249A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62113184A (en) * 1985-11-12 1987-05-25 Canon Inc Synthesized image forming device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4875036A (en) * 1971-12-30 1973-10-09
JPS513236A (en) * 1974-06-26 1976-01-12 Ricoh Kk KAKIKOMI SHOKYOGAOKONAERU FUKUSHA SOCHI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4875036A (en) * 1971-12-30 1973-10-09
JPS513236A (en) * 1974-06-26 1976-01-12 Ricoh Kk KAKIKOMI SHOKYOGAOKONAERU FUKUSHA SOCHI

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62113184A (en) * 1985-11-12 1987-05-25 Canon Inc Synthesized image forming device

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