Designation:F1444–00(Reapproved2004)StandardTestMethodforDeterminingDynamicThermalResponseofDirectThermalPaper-LabelPrinterMethod1ThisstandardisissuedunderthefixeddesignationF1444;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthethermalresponseofdirectthermalpaperstodetermineuniformitywithinandbetweenlots.Thistestmethodmayalsobeusedtotestdirectthermalproductsotherthanpaper.1.2TheHobart18VPThermalLabelPrinter2describedinthistestmethodmaybeusedforspecificationacceptance,productdevelopmentorresearchapplications,orboth,andmanufacturingcontrol.1.3Althoughaspecificmanufacturerhasbeenidentifiedforthisequipment,anythermallabelprinterwithequivalentsignaloutputcapabilitiesandsamplesizerequirementswouldbesuitable.1.4Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIunitsgiveninparentheses,areforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.(Warning—Thistestmethodrequiresmakingpoweradjustmentsandtriggerprintingwhiletheprotectivecoverisoff,therebyexposingtheusertoelectricalhazards.)2.ReferencedDocument2.1ANSIStandards:3IT2.16–1995IT2.17–19953.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1dynamicthermalresponsecurve—thegraphicalrep-resentationoftheresponsecharacteristicofathermalprintingsystemoveragivenrangeofprintenergies.They-axisofthegraphisopticaldensity(reflectancedensity),whilethex-axisiscalibratedintermsofprintenergyorenergydensity.Typicalunitsforprintenergyarewatts/dotormillijoules(mj),whereastheunitsforprintdensityaremillijoulespersquaremillimetre,mj/mm2.3.1.2dynamicthermalsensitivity—theg...
