JPS54119239A - Laser recorder - Google Patents

Laser recorder

Info

Publication number
JPS54119239A
JPS54119239A JP2641178A JP2641178A JPS54119239A JP S54119239 A JPS54119239 A JP S54119239A JP 2641178 A JP2641178 A JP 2641178A JP 2641178 A JP2641178 A JP 2641178A JP S54119239 A JPS54119239 A JP S54119239A
Authority
JP
Japan
Prior art keywords
lens
pieces
beams
interval
picture image
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
JP2641178A
Other languages
Japanese (ja)
Inventor
Hideo Segawa
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 JP2641178A priority Critical patent/JPS54119239A/en
Publication of JPS54119239A publication Critical patent/JPS54119239A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable accurate and prompt adjustment of the diameter of the primary optical signal beam to radiate the recording medium or the dot line interval (beam interval) depending on the desired printing quality.
CONSTITUTION: By corresponding carriers f1... having different frequencies one another with n-pieces of picture image signals S1... one by one, the picture image signal Si is modulated by AM modulator AM1 through the carrier fi to form n- pieces of modulated signals Sf1..., which are then mixed in a mixer 13 and are applied to an acousto-optical element 4 through AMP, thereby emitting n-pieces of primary optical beams L. The primary optical signals L are passed through a magnification adjusting lens 5 and a cylindrical lens 6 to be continuously reflected by a rotating polyhedral mirror 7, and are caused to scan on a photosensitive drum 12 through f-θ lens 8 and a cylindrical lens 9, thereby forming a picture image. Part of the beams L to radiate one end of the photosensitive drum 12 is reflected by a mirror 10 to be led into a solid image pickup element 11, and the beam diameter and beam interval are read from the waveforms of beams L. The beam diameter is adjusted by inching the f-θ lens 8 or the magnification adjusting lens 5, and the beam interval is adjusted by changing the frequency difference of carriers f1....
COPYRIGHT: (C)1979,JPO&Japio
JP2641178A 1978-03-08 1978-03-08 Laser recorder Pending JPS54119239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2641178A JPS54119239A (en) 1978-03-08 1978-03-08 Laser recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2641178A JPS54119239A (en) 1978-03-08 1978-03-08 Laser recorder

Publications (1)

Publication Number Publication Date
JPS54119239A true JPS54119239A (en) 1979-09-17

Family

ID=12192799

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2641178A Pending JPS54119239A (en) 1978-03-08 1978-03-08 Laser recorder

Country Status (1)

Country Link
JP (1) JPS54119239A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56122898U (en) * 1980-02-19 1981-09-18
JPS5828733A (en) * 1981-08-13 1983-02-19 Matsushita Electric Ind Co Ltd Image recorder
US4571035A (en) * 1981-11-28 1986-02-18 Ricoh Company, Ltd. Two-element fθ lens group capable of correcting leaning of deflecting plane
US4613877A (en) * 1984-11-26 1986-09-23 Data Recording Systems, Inc. High resolution laser printer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56122898U (en) * 1980-02-19 1981-09-18
JPS5828733A (en) * 1981-08-13 1983-02-19 Matsushita Electric Ind Co Ltd Image recorder
JPS6156655B2 (en) * 1981-08-13 1986-12-03 Matsushita Electric Ind Co Ltd
US4571035A (en) * 1981-11-28 1986-02-18 Ricoh Company, Ltd. Two-element fθ lens group capable of correcting leaning of deflecting plane
US4613877A (en) * 1984-11-26 1986-09-23 Data Recording Systems, Inc. High resolution laser printer

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