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JPS5482911A - Facsimile unit - Google Patents

Facsimile unit

Info

Publication number
JPS5482911A
JPS5482911A JP14984777A JP14984777A JPS5482911A JP S5482911 A JPS5482911 A JP S5482911A JP 14984777 A JP14984777 A JP 14984777A JP 14984777 A JP14984777 A JP 14984777A JP S5482911 A JPS5482911 A JP S5482911A
Authority
JP
Japan
Prior art keywords
frequency
recording
carriage
read
clock pulse
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
JP14984777A
Other languages
Japanese (ja)
Inventor
Shuichi Oota
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 JP14984777A priority Critical patent/JPS5482911A/en
Publication of JPS5482911A publication Critical patent/JPS5482911A/en
Pending legal-status Critical Current

Links

Landscapes

  • Facsimile Transmission Control (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE: To increase the recording video quality, by detecting the frequency of element clock pulse and controlling the drive motor so that the frequency can be held constant.
CONSTITUTION: The carriage 6 mounting the read-in head 7 and recording head 8 moves toward the main scanning orthogonal to the direction of the document and recording media, and the slit marks located in a great number with the distance correspounding to the line density pitch toward main scanning are read in with the detector 1, producing 41 the element clock pulse correspounding. Further, the detector 1 is moved with the carriage 6 and the recording position at reception and the read-in position at transmission for every video element are determined in the pitch corresponding to the period of the signal generated. Then, it is utilized that the frequency of the element clock pulse signal is in proportional to the shift speed of the carriage 6, the frequency is detected 44 and the drive motor 14 is controlled so that the frequency can be held constant. Thus, the video quality of recording can be increased.
COPYRIGHT: (C)1979,JPO&Japio
JP14984777A 1977-12-15 1977-12-15 Facsimile unit Pending JPS5482911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14984777A JPS5482911A (en) 1977-12-15 1977-12-15 Facsimile unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14984777A JPS5482911A (en) 1977-12-15 1977-12-15 Facsimile unit

Publications (1)

Publication Number Publication Date
JPS5482911A true JPS5482911A (en) 1979-07-02

Family

ID=15483945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14984777A Pending JPS5482911A (en) 1977-12-15 1977-12-15 Facsimile unit

Country Status (1)

Country Link
JP (1) JPS5482911A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57160662A (en) * 1981-03-30 1982-10-04 Fujitsu Ltd Printing position control system in reciprocal scanning

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5068611A (en) * 1973-10-19 1975-06-09
JPS517826A (en) * 1974-06-05 1976-01-22 Centronics Data Computer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5068611A (en) * 1973-10-19 1975-06-09
JPS517826A (en) * 1974-06-05 1976-01-22 Centronics Data Computer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57160662A (en) * 1981-03-30 1982-10-04 Fujitsu Ltd Printing position control system in reciprocal scanning
JPS6232673B2 (en) * 1981-03-30 1987-07-16 Fujitsu Ltd

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