Designation:F1125−87(Reapproved2011)StandardTerminologyofImageQualityinImpactPrintingSystems1ThisstandardisissuedunderthefixeddesignationF1125;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisterminologypresentsameanstoaccuratelyde-scribethequalityofimpactprintedimages.Thisincludesanup-to-dateglossaryandadescriptionofprobablecausesforspecificphenomenathatrelatetoimagequality.Illustrationstocomplementthedefinitionsofcopyqualitytermsareincluded.2.ReferencedDocuments2.1ASTMStandards:2F149TerminologyRelatingtoOpticalCharacterRecogni-tionF221TerminologyRelatingtoCarbonPaperandInkedRibbonProductsandImagesMadeTherefromF909TerminologyRelatingtoPrinters3.SignificanceandUse3.1Thisterminologyincludestermsdevelopedandap-provedbyimpactprintingsystemsmanufacturers,suppliesmanufacturers,andenduserstodescribemostimagequalityparametersconcerningimpactprintedimages.3.2Thisterminologyisintendedtoaidingeneralcommu-nicationsonimpactprintercopyqualityparametersandprovideapartialtroubleshootinglist,whenlessthanaccept-ablecopyqualityisobtained.4.DescriptionsofTermsSpecifictoThisStandard4.1characterspread—amountofchangeofacharacterwidthgreaterorlessthantheoriginalcharacterwidthonthetypeelement,printwheel,orhammer(seeFig.1).4.2correctability—measureofimageremovalorcover-upbytypingoverwithcorrectiontapesortabs(seeFig.2).4.3edgedefinition—degreeofwavinessalongtheedgeoftypecharacters(seeFig.3).4.4extraneousinkandspatter—thepresenceofribboninkwherenoimagesshouldbepresent.Thisinkcannotberemovedbywipinglightly(seeFig.4).4.5fill-in—presenceofribboninkinanareaofaprintedcharacterthatshouldbevoidofink(seeFig.5).4.6flakingorbridging—presenceoflooseribboncoatingmaterialattachedtoacharacterorinnonimageareaswhichmayormaynotberemovedbylightlywiping.Theseflakesmayalsoappearinribb...
