JPS5541002A - Facsimile unit - Google Patents

Facsimile unit

Info

Publication number
JPS5541002A
JPS5541002A JP11291278A JP11291278A JPS5541002A JP S5541002 A JPS5541002 A JP S5541002A JP 11291278 A JP11291278 A JP 11291278A JP 11291278 A JP11291278 A JP 11291278A JP S5541002 A JPS5541002 A JP S5541002A
Authority
JP
Japan
Prior art keywords
original
output
drum
background color
reflection
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.)
Granted
Application number
JP11291278A
Other languages
Japanese (ja)
Other versions
JPS6150422B2 (en
Inventor
Takashi Ikeda
Yutaka Hirakawa
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP11291278A priority Critical patent/JPS5541002A/en
Publication of JPS5541002A publication Critical patent/JPS5541002A/en
Publication of JPS6150422B2 publication Critical patent/JPS6150422B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Facsimile Image Signal Circuits (AREA)
  • Facsimile Heads (AREA)
  • Facsimiles In General (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE: To ensure sharp printed picture through constant read-in level for letter background and symbols independently of the change in the background color of original, by using a drum for the original feeding and processing the concentration of reflection on the surface of the drum to a given output.
CONSTITUTION: The original feeding drum 8 is placed by opposing the image sensor 6. The concentration of reflection at the surface of the drum 8 is lower than the output a of the white original and it is processed that higher output is obtained than the output a' of the original darker in the background color. Accordingly, when the original darker in the background color having smaller width than the read-in width is transmitted, the maximum output is the background color d of the drum 8, and the slice level SLd can be set. The slice level SLd is lower than the output a' of the ground color part of the original and it is set at higher position than the output b of the letters and symbols described on the original, sharp printed picture can be obtained without the error of judgement for the information of white and black.
COPYRIGHT: (C)1980,JPO&Japio
JP11291278A 1978-09-16 1978-09-16 Facsimile unit Granted JPS5541002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11291278A JPS5541002A (en) 1978-09-16 1978-09-16 Facsimile unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11291278A JPS5541002A (en) 1978-09-16 1978-09-16 Facsimile unit

Publications (2)

Publication Number Publication Date
JPS5541002A true JPS5541002A (en) 1980-03-22
JPS6150422B2 JPS6150422B2 (en) 1986-11-04

Family

ID=14598591

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11291278A Granted JPS5541002A (en) 1978-09-16 1978-09-16 Facsimile unit

Country Status (1)

Country Link
JP (1) JPS5541002A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6218166A (en) * 1985-07-16 1987-01-27 Mitsubishi Electric Corp Contact type image sensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS504523A (en) * 1973-05-18 1975-01-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS504523A (en) * 1973-05-18 1975-01-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6218166A (en) * 1985-07-16 1987-01-27 Mitsubishi Electric Corp Contact type image sensor

Also Published As

Publication number Publication date
JPS6150422B2 (en) 1986-11-04

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