ASTM_F_974_-_06_2011e1.pdf

Designation:F97406(Reapproved 2011)1Standard Practice forDetermination of Color Response of Electrostatic CopyingSystem,Black and White Output1This standard is issued under the fixed designation F974;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.1NOTERevised the units presentation and added a units statement editorially in October 2011.1.Scope1.1 This practice covers the determination of the colorresponse of an electrostatic copy system,black and whiteoutput.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of whoever uses this standard to consult andestablish appropriate safety and health practices and deter-mine the applicability of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E97 Method of Test for Directional Reflectance Factor,45-Deg 0-Deg,of Opaque Specimens by Broad-BandFilter Reflectometry(Withdrawn 1991)3F335 Terminology Relating to Electrostatic ImagingF360 Practice for Image Evaluation of Electrostatic BusinessCopies3.Significance and Use3.1 This practice is for determining the color response of anelectrostatic copy system by examining the black and whitecopies obtained from an electrostatic copier.This practicecovers the capability of a copy system to reproduce varioussolid colors in varying shades of grey or black and white.4.Interferences4.1 This practice can be used to measure the color responsefor different copy system conditions(machine adjustments,machine configuration,supplies,environment,and so forth).These conditions should be noted so that comparison tests canbe made.4.2 In liquid developed copiers,the system color response isstrongly dependent on the condition(that is,age,concentra-tion,and so forth)of the toner bath.As a liquid toner is cycledthrough depletion and replenishment,color response may showwide fluctuations even though fluctuations in other copyquality criteria(for example,background,edge effect,resolu-tion,and density)may not be altered.(See Terminology F335.)4.3 In dry toned copiers,the system color response isstrongly dependent on the age and condition of the photocon-ductor and developer and may also show wide fluctuations incolor response even though some of the copy quality criterialisted in 4.2 may not be altered.4.4 Copy systems that circulate the original to be copiedthrough the copier may not be capable of handling a consumerprepared test target.5.Apparatus5.1 Reflectometer,operated and standardized according tothe manufacturers instructions and in accordance with TestMethod E97.Spectral response shall be for measuring thedaylight luminous reflectance factor,as described under theTerminology section of Test Method E97.6.Materials6.1 Copy paper,toning supplies,photoreceptor,and so forthshould be approved materials currently used by the evaluator.Any change of supplies from one manufacturer to those ofanother may alter the test results.7.Procedure7.1 Prepare a test target in accordance with the Test Originalsection described in Practice F360.Select Munsell Color Chipsappropriate to their copying needs and adhere by any suitable1This practice is under the jurisdiction of ASTM Committee F05 on BusinessImaging Products and is the direct responsibility of Subcommittee F05.04 onElectrostatic Imaging Products.Current edition approved Oct.1,2011.Published March 2012.Originallyapproved in 1986.Last previous edition approved in 2006 as F97406.DOI:10.1520/F0974-06R11e1.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 method those selected chips on a suitable paper substrate(starting in the center of the substrate)allowing spatial inter-vals between the chips of at least 112in.(3.8 cm).7.1.1 Alternate commercially available color composite tar-gets can be selected and used as a target.7.1.2 If the customers color is not on the target,the resultsmay be misleading results,particularly if saturated inks areused.7.2 Use test target in accordance with the Procedure sectiondescribed in Practice F360.7.3 Adjust the exposure dial or controls of the copyingmachine to optimize color reproduction for the selected target.This can affect other imaging functio