JPS562170A - Method of controlling image quality of offset printing machine - Google Patents

Method of controlling image quality of offset printing machine

Info

Publication number
JPS562170A
JPS562170A JP7775079A JP7775079A JPS562170A JP S562170 A JPS562170 A JP S562170A JP 7775079 A JP7775079 A JP 7775079A JP 7775079 A JP7775079 A JP 7775079A JP S562170 A JPS562170 A JP S562170A
Authority
JP
Japan
Prior art keywords
water
ink
roller
kneading
printing machine
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
JP7775079A
Other languages
Japanese (ja)
Other versions
JPH0221941B2 (en
Inventor
Kazuo Murai
Kazuo Matsumoto
Tamaki Kaneko
Isao Nakamura
Toshiyuki Sakakibara
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 JP7775079A priority Critical patent/JPS562170A/en
Publication of JPS562170A publication Critical patent/JPS562170A/en
Publication of JPH0221941B2 publication Critical patent/JPH0221941B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)

Abstract

PURPOSE:To enable to control the density of printed image efficiently, by keeping water content at a standard value through provision of a means for detecting and controlling the ratio of water to ink on an ink kneading roller or an inking roller. CONSTITUTION:In an offset printing machine of the type in which water is supplied to ink on ink kneading roller 12 for humidifying the negative and kneading ink to have required properties, distribution of water drops formed by the humidifying water on ink kneading roller 12 or inking roller 13 is detected by way of optical, electric or dielectric method, and the deviation is feedbacked to the water supply system. In the above arrangement, distribution of water drops on ink kneading roller 12 can be kept constant and the density of the printed image can be kept constant by employing, for instance, a method for varying the time period when water priming roller 16 is held in contact with ink kneading water 12.
JP7775079A 1979-06-20 1979-06-20 Method of controlling image quality of offset printing machine Granted JPS562170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7775079A JPS562170A (en) 1979-06-20 1979-06-20 Method of controlling image quality of offset printing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7775079A JPS562170A (en) 1979-06-20 1979-06-20 Method of controlling image quality of offset printing machine

Publications (2)

Publication Number Publication Date
JPS562170A true JPS562170A (en) 1981-01-10
JPH0221941B2 JPH0221941B2 (en) 1990-05-16

Family

ID=13642592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7775079A Granted JPS562170A (en) 1979-06-20 1979-06-20 Method of controlling image quality of offset printing machine

Country Status (1)

Country Link
JP (1) JPS562170A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59129153A (en) * 1983-01-16 1984-07-25 Tokyo Kikai Seisakusho:Kk Automatic controller for amount of water supplied in lithographic rotary press printer
JPS6145885A (en) * 1984-08-07 1986-03-05 株式会社神戸製鋼所 Controller for horizontal excavation of grab bucket
JPS61104855A (en) * 1984-10-29 1986-05-23 Mitsubishi Heavy Ind Ltd Printing method
JPH02125059U (en) * 1989-03-27 1990-10-15
JPH0556431U (en) * 1991-02-20 1993-07-27 株式会社東京機械製作所 Automatic water supply controller for lithographic printing press

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04170233A (en) * 1990-11-02 1992-06-17 Nec Corp Time division multiplex transmission circuit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59129153A (en) * 1983-01-16 1984-07-25 Tokyo Kikai Seisakusho:Kk Automatic controller for amount of water supplied in lithographic rotary press printer
JPS6145885A (en) * 1984-08-07 1986-03-05 株式会社神戸製鋼所 Controller for horizontal excavation of grab bucket
JPH0322487B2 (en) * 1984-08-07 1991-03-27 Kobe Steel Ltd
JPS61104855A (en) * 1984-10-29 1986-05-23 Mitsubishi Heavy Ind Ltd Printing method
JPH02125059U (en) * 1989-03-27 1990-10-15
JPH0556431U (en) * 1991-02-20 1993-07-27 株式会社東京機械製作所 Automatic water supply controller for lithographic printing press

Also Published As

Publication number Publication date
JPH0221941B2 (en) 1990-05-16

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