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.)
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 LtdfiledCriticalRicoh Co Ltd
Priority to JP7076277ApriorityCriticalpatent/JPS545736A/en
Publication of JPS545736ApublicationCriticalpatent/JPS545736A/en
Printers Or Recording Devices Using Electromagnetic And Radiation Means
(AREA)
Exposure Or Original Feeding In Electrophotography
(AREA)
Projection-Type Copiers In General
(AREA)
Abstract
PURPOSE: To prevent burn of fluorescent screen by moving the main scanning line of an electron beam and a convergent optical fiber in an auxiliary scanning direction in a system of forming the image of the light of a cathode-ray tube on a photoreceptor by the convergent optical fiber.