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JPS5552018A - Scanning position signal generating system of photo scanning device - Google Patents

Scanning position signal generating system of photo scanning device

Info

Publication number
JPS5552018A
JPS5552018A JP12590878A JP12590878A JPS5552018A JP S5552018 A JPS5552018 A JP S5552018A JP 12590878 A JP12590878 A JP 12590878A JP 12590878 A JP12590878 A JP 12590878A JP S5552018 A JPS5552018 A JP S5552018A
Authority
JP
Japan
Prior art keywords
rotary mirror
magnetic disc
scanning
grating
photo
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
JP12590878A
Other languages
Japanese (ja)
Inventor
Masahito Nakajima
Katsumi Fujiwara
Taku Yoshida
Masayuki Oyama
Kikuo Mita
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP12590878A priority Critical patent/JPS5552018A/en
Publication of JPS5552018A publication Critical patent/JPS5552018A/en
Pending legal-status Critical Current

Links

Landscapes

  • Dot-Matrix Printers And Others (AREA)
  • Laser Beam Printer (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

PURPOSE: To faithfully perform error correction of scanning position deviations by placing a grating plate on the plane to be scanned and recording grating clock signals on the magnetic disc integrally coupled to a rotary mirror in the rotary mirror scanning system.
CONSTITUTION: A laser beam 1 is reflected by the reflecting surface 10 of a rotary mirror 2 and scans on the grating plate 7 surface by way of a lens 3. This is detected with a photo detector 8 and is recorded as a grating clock signal on the magnetic disc 9 integrated with the rotary mirror 2. By integrating the rotary mirror 2 and magnetic disc 9 by a shaft 14 in this way, correspondence may be taken between the rotating position of the rotary mirror 2 and the rotating position of the magnetic disc 9 and the grating clock signals based on the actual photo scanning are recorded in the magnetic disc and therefore the accurate position signal is obtained. Hence, the error correction of scanning position deviations may be faithfully accomplished.
COPYRIGHT: (C)1980,JPO&Japio
JP12590878A 1978-10-13 1978-10-13 Scanning position signal generating system of photo scanning device Pending JPS5552018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12590878A JPS5552018A (en) 1978-10-13 1978-10-13 Scanning position signal generating system of photo scanning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12590878A JPS5552018A (en) 1978-10-13 1978-10-13 Scanning position signal generating system of photo scanning device

Publications (1)

Publication Number Publication Date
JPS5552018A true JPS5552018A (en) 1980-04-16

Family

ID=14921877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12590878A Pending JPS5552018A (en) 1978-10-13 1978-10-13 Scanning position signal generating system of photo scanning device

Country Status (1)

Country Link
JP (1) JPS5552018A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6074872A (en) * 1983-09-30 1985-04-27 Photo Composing Mach Mfg Co Ltd Optical printer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6074872A (en) * 1983-09-30 1985-04-27 Photo Composing Mach Mfg Co Ltd Optical printer

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