JPS5595967A - Slit exposure copying unit having image erasing function - Google Patents

Slit exposure copying unit having image erasing function

Info

Publication number
JPS5595967A
JPS5595967A JP368179A JP368179A JPS5595967A JP S5595967 A JPS5595967 A JP S5595967A JP 368179 A JP368179 A JP 368179A JP 368179 A JP368179 A JP 368179A JP S5595967 A JPS5595967 A JP S5595967A
Authority
JP
Japan
Prior art keywords
image
light
irradiates
spectral
copying
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
JP368179A
Other languages
Japanese (ja)
Inventor
Shigeru Horii
Hideo Nishiyama
Teruaki Shigeta
Kazutaka Koyama
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP368179A priority Critical patent/JPS5595967A/en
Publication of JPS5595967A publication Critical patent/JPS5595967A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To remarkably enhance operation efficiency in partially correcting a document and copying this, by coloring an original image with an ink having a specified spectral reflectivity to erase that part of the image. CONSTITUTION:Light from light source 2 irradiates original 1 and the reflected light passes between light shielding plates 12, 13, and projects the image on photosensitive drum 9. Stripe filter 14 for detecting the color to be erased, and semiconductor array 15 are provided on plate 12 to take out photoelectric signal output in accordance with the spectral characteristics of the projected image and spectral transmission characteristics of filter 14. This output controls ON and OFF of light emitting diode 29, the emitted light passes through optical fiber array 30 and irradiates drum 9, thus, permitting toner potential to be lost before an exposure step, the toner not to attach to the irradiated position, and this position to become a white ground, therefore, copying operation to be made efficiently without beeing needed to apply white paper for correction.
JP368179A 1979-01-16 1979-01-16 Slit exposure copying unit having image erasing function Pending JPS5595967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP368179A JPS5595967A (en) 1979-01-16 1979-01-16 Slit exposure copying unit having image erasing function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP368179A JPS5595967A (en) 1979-01-16 1979-01-16 Slit exposure copying unit having image erasing function

Publications (1)

Publication Number Publication Date
JPS5595967A true JPS5595967A (en) 1980-07-21

Family

ID=11564140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP368179A Pending JPS5595967A (en) 1979-01-16 1979-01-16 Slit exposure copying unit having image erasing function

Country Status (1)

Country Link
JP (1) JPS5595967A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756859A (en) * 1980-09-24 1982-04-05 Ricoh Co Ltd Partial copying method of original in copying machine
JPS57119379A (en) * 1981-01-17 1982-07-24 Ricoh Co Ltd Detector for copying area in copying machine
JPS57119380A (en) * 1981-01-17 1982-07-24 Ricoh Co Ltd Detector for copying area in copying machine
JPS57122473A (en) * 1980-12-26 1982-07-30 Konishiroku Photo Ind Co Ltd Charge erasing device of electrophotographic copying machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756859A (en) * 1980-09-24 1982-04-05 Ricoh Co Ltd Partial copying method of original in copying machine
JPS57122473A (en) * 1980-12-26 1982-07-30 Konishiroku Photo Ind Co Ltd Charge erasing device of electrophotographic copying machine
JPS57119379A (en) * 1981-01-17 1982-07-24 Ricoh Co Ltd Detector for copying area in copying machine
JPS57119380A (en) * 1981-01-17 1982-07-24 Ricoh Co Ltd Detector for copying area in copying machine

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