Application of gradient method for separately analyzing optical and mechanical dot gain of electrophotography prints

izvorni znanstveni rad

izvorni znanstveni rad

Application of gradient method for separately analyzing optical and mechanical dot gain of electrophotography prints

Vrsta prilog u časopisu
Tip izvorni znanstveni rad
Godina 2019
Časopis Nordic pulp & paper research journal
Nadređena publikacija Nordic Pulp & Paper Research Journal
Volumen 34
Svesčić 4
Stranice str. 534-539
DOI 10.1515/npprj-2019-0008
ISSN 0283-2631
EISSN 2000-0669
Status objavljeno

Sažetak

Theultimategoalofeachproductionprocessistooptimizeallthesubprocessesleadingtothehighqual-ityfinalproduct.Withintheprintingprocess, dotgainisidentifiedasoneofthemostimportantvariablestocontrolbecauseoftheextremelynegativeimpacttomiddletonecontrastandtheoverallreproduction.Dotgainconsistsoftwocomponents, mechanicalandopticaldotgain, asare-sultoftwodifferentcontributions.Thisarticleproposesamodelforseparatelyanalyzingcomponentsofdotgainforelectrophotographyprintsusinggradientmethod, wherethe impact of printing technique and paper type will beexamined. It is shown that mechanical dot gain for elec-trophotographyprintscanbesatisfactorilyapproximatedwithGaussian, whilstopticaldotgainisonceagaincon-firmedtohavetheformofaLorentzian.

Ključne riječi

Gauss ; gradient method ; Lorentz ; mechanical dot gain ; optical dot gain