JPS6453845A - Ink supply method and automatic ink supply apparatus of proof press - Google Patents

Ink supply method and automatic ink supply apparatus of proof press

Info

Publication number
JPS6453845A
JPS6453845A JP21112487A JP21112487A JPS6453845A JP S6453845 A JPS6453845 A JP S6453845A JP 21112487 A JP21112487 A JP 21112487A JP 21112487 A JP21112487 A JP 21112487A JP S6453845 A JPS6453845 A JP S6453845A
Authority
JP
Japan
Prior art keywords
density
ink
measured
supply
judged
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
JP21112487A
Other languages
Japanese (ja)
Inventor
Shuji Tsuchimoto
Tomoyuki Kadota
Masahiro Nakajima
Original Assignee
Dainippon Screen Mfg
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 Dainippon Screen Mfg filed Critical Dainippon Screen Mfg
Priority to JP21112487A priority Critical patent/JPS6453845A/en
Priority claimed from EP88109377A external-priority patent/EP0295606B1/en
Priority claimed from DE19883868987 external-priority patent/DE3868987D1/en
Publication of JPS6453845A publication Critical patent/JPS6453845A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To stabilize quality, by a method wherein the density of the chart for controlling each density of a blank part is measured and, when the measured density is within a tolerant range, said density is further compared with the density detected at the time of the previous proof and, when a density increment is smaller than a predetermined value, it is judged that the supply of ink is necessary. CONSTITUTION:At the time of proof, the density of the chart for controlling each density printed on the blank part of printing paper along with a picture is measured by a printing density measuring apparatus 24 not only to be displayed and recorded on a printing density display and recording apparatus 28 but also to be stored in a memory 26. A printing density judging/ink supply amount setting unit 30 compares the measured density with present objective density and, when the measured density is out of a tolerant density range, it is judged that the supply of ink is necessary to operate an ink pump 78 through an ink pump control circuit 76. When the measured density is within the tolerant density range, said density is further compared with the memory detected density at the time of the previous proof and, when the density increment thereof is smaller than a predetermined value, it is judged that the supply of the ink is necessary and, when said increment is larger than the predetermined value, the supply of the ink is judged to be unnecessary. By this method, the supply amount of the ink is accurately controlled and the quality of printed matter can be stabilized.
JP21112487A 1987-08-25 1987-08-25 Ink supply method and automatic ink supply apparatus of proof press Pending JPS6453845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21112487A JPS6453845A (en) 1987-08-25 1987-08-25 Ink supply method and automatic ink supply apparatus of proof press

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP21112487A JPS6453845A (en) 1987-08-25 1987-08-25 Ink supply method and automatic ink supply apparatus of proof press
EP88109377A EP0295606B1 (en) 1987-05-26 1988-06-13 An automatic ink feeding apparatus in an offset proof press machine
DE19883868987 DE3868987D1 (en) 1987-06-15 1988-06-13 Automatic color feeding in a rotational open print press.

Publications (1)

Publication Number Publication Date
JPS6453845A true JPS6453845A (en) 1989-03-01

Family

ID=16600790

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21112487A Pending JPS6453845A (en) 1987-08-25 1987-08-25 Ink supply method and automatic ink supply apparatus of proof press

Country Status (1)

Country Link
JP (1) JPS6453845A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6883432B2 (en) 2002-05-21 2005-04-26 Dainippon Screen Mfg. Co., Ltd. Ink feeding method and ink feeding apparatus for a printing machine
US7059247B2 (en) 2004-02-20 2006-06-13 Dainippon Screen Mfg. Co., Ltd. Ink feeding method for a printing machine
DE10013876B4 (en) * 1999-04-08 2013-10-02 Heidelberger Druckmaschinen Ag Method for controlling the coloring when printing with a printing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10013876B4 (en) * 1999-04-08 2013-10-02 Heidelberger Druckmaschinen Ag Method for controlling the coloring when printing with a printing machine
US6883432B2 (en) 2002-05-21 2005-04-26 Dainippon Screen Mfg. Co., Ltd. Ink feeding method and ink feeding apparatus for a printing machine
US7059247B2 (en) 2004-02-20 2006-06-13 Dainippon Screen Mfg. Co., Ltd. Ink feeding method for a printing machine

Similar Documents

Publication Publication Date Title
CA2099206A1 (en) Apparatus and Method for Changing the Text Portion of Logos for Postage Meters
US3185088A (en) Method and apparatus for predetermining settings for ink fountain keys
DE3468650D1 (en) Method and device for rating the printing quality and/or controlling the ink supply in an offset printing machine, and offset printing machine with such a device
MX9505305A (en) Ink supply identification system.
WO1992012592A3 (en) Controller for spark discharge imaging
FR2512740A1 (en) Method and device for simultaneously intensive intense inspection and positioning of prints in a printing machine
JPS60234856A (en) Recording apparatus
JPS58160169A (en) Thermal printer
JPH0419764A (en) Toner concentration controller for image forming device
ES2075988T3 (en) Method for the supervision and control of the quality of the brands made with tracing feathers.
CA2044792A1 (en) Apparatus and method for cutoff register control for diaper machines
DE3111987A1 (en) Device for controlling the viscosity of the ink in an ink jet printer
JPH01225554A (en) Process and apparatus for ink control of printing machine
JPH02108542A (en) Method and apparatus for monitoring and/or controlling dampening-liquid feed in offset printing machine
JPH01314171A (en) Ink control method of printing press
JPS62184856A (en) Ink ribbon cartridge
US4596993A (en) Thermal recording system and method
JPS63108364A (en) Laser printer
EP0069572A1 (en) Method and apparatus for use in connection with the adjustment of printing presses
JPH03222784A (en) Method for calibrating printer and printer
GB1220739A (en) Improvements in or relating to colour printing
JPS58172654A (en) Control device of image recording
US4428041A (en) Device for preventing irregular supplying of printing sheets for printing machine
JPH0228450A (en) Device for positioning plate-shaped piece for printing
JPH02297442A (en) Controlling method of supply of ink to printing machine