JPS63145035A - Method for correcting printing density - Google Patents

Method for correcting printing density

Info

Publication number
JPS63145035A
JPS63145035A JP61292449A JP29244986A JPS63145035A JP S63145035 A JPS63145035 A JP S63145035A JP 61292449 A JP61292449 A JP 61292449A JP 29244986 A JP29244986 A JP 29244986A JP S63145035 A JPS63145035 A JP S63145035A
Authority
JP
Japan
Prior art keywords
printing
density
correction
actual
paper
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
JP61292449A
Other languages
Japanese (ja)
Other versions
JP2563167B2 (en
Inventor
Hideo Watanabe
Original Assignee
Komori Printing Mach 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 Komori Printing Mach Co Ltd filed Critical Komori Printing Mach Co Ltd
Priority to JP61292449A priority Critical patent/JP2563167B2/en
Publication of JPS63145035A publication Critical patent/JPS63145035A/en
Application granted granted Critical
Publication of JP2563167B2 publication Critical patent/JP2563167B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To obtain an optimum condition of correcting a printing density to reduce the occurrence of unsatisfactory printing, by a method wherein, according to the ratio of the difference between a present actual density and a preceding actual density to the difference between a reference density and the preceding actual density, a present correction value is compensated for the correction of the printing density.
CONSTITUTION: A reference paper 1 in reference printing conditions is photoelectically measured by a densitometer (DM) 2. According to a small square printing surface per color called a color patch which is printed on, for example, the upper margin of the reference paper 1, a reference printing density per color is obtained. Thereafter, a sample paper 3 sampled is printing is similarly measured by the DM 2, whereby a present printing density is obtained per color. The actual densities Di-1, Di of the sample paper 3 to a reference density Ds vary according to the sampling and the number (m) of measurement by the DM 2, which results in the deficiency in correction conditions. Therefore, by a method in which a CPU 41 successively stores data such as Ds, Di-1, Di into an MEM 42 and successively calculates a correction value arithmetically compensated to control a printer 5, the proper and responsive correction of printing density, the improvement of the response in correction-control conditions, and the reduction of occurrence of unsatisfactory printing are realized.
COPYRIGHT: (C)1988,JPO&Japio
JP61292449A 1986-12-10 1986-12-10 Print density correction method Expired - Fee Related JP2563167B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61292449A JP2563167B2 (en) 1986-12-10 1986-12-10 Print density correction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61292449A JP2563167B2 (en) 1986-12-10 1986-12-10 Print density correction method

Publications (2)

Publication Number Publication Date
JPS63145035A true JPS63145035A (en) 1988-06-17
JP2563167B2 JP2563167B2 (en) 1996-12-11

Family

ID=17781942

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61292449A Expired - Fee Related JP2563167B2 (en) 1986-12-10 1986-12-10 Print density correction method

Country Status (1)

Country Link
JP (1) JP2563167B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000313103A (en) * 1999-04-08 2000-11-14 Heidelberger Druckmas Ag Method for adjusting inking in printing by press
JP2007283496A (en) * 2006-04-12 2007-11-01 Mitsubishi Heavy Ind Ltd Pattern color tone controlling method and device of printing machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60220411A (en) * 1984-04-17 1985-11-05 Toshiba Corp Digital position controller
JPS61100458A (en) * 1984-10-19 1986-05-19 Miller Yohanisuberuku Dorutsuk Multicolor sheet printer for one-surface printing and one surface and back printing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60220411A (en) * 1984-04-17 1985-11-05 Toshiba Corp Digital position controller
JPS61100458A (en) * 1984-10-19 1986-05-19 Miller Yohanisuberuku Dorutsuk Multicolor sheet printer for one-surface printing and one surface and back printing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000313103A (en) * 1999-04-08 2000-11-14 Heidelberger Druckmas Ag Method for adjusting inking in printing by press
JP2007283496A (en) * 2006-04-12 2007-11-01 Mitsubishi Heavy Ind Ltd Pattern color tone controlling method and device of printing machine

Also Published As

Publication number Publication date
JP2563167B2 (en) 1996-12-11

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees