Designation:F909−94a(Reapproved2011)StandardTerminologyRelatingtoPrinters1ThisstandardisissuedunderthefixeddesignationF909;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetermsanddefinitionsarerelatedtoprintersoperatedbycomputers.2.Terminology2.1Definitions:ballelement—anelementusedinanimpactprintingdeviceinwhichthefullyformedcharactersarelocatedontheoutersurfaceofasphere-likedevice.Frequentlycalledgolf-ballelement.ballprinter—animpactprintingdeviceutilizingaballele-ment.Thepaperonthecarriageremainsstationarywhiletheelementispositionedandcausedtostrikethepapertoproducecharactersintheirproperpositions.bandprinter—atypeofprinterthatemploysanendlesssteelbandcontainingfullyformedcharacters.Thebandtrans-versesthewidthofthepaperform.Hammersstrikethebackoftheform,synchronizedinsuchawayastoproducethedesiredcharactersintheirproperposition.bar—Seetypebar.barprinter—animpactprinterinwhichthetypeslugsarecarriedonatypebar.Syn.printbar.beltprinter—atypeofprinterthatemploysanendlessbelt,theoutersurfaceofwhichcontainsfullyformedcharacters.Thebeltiscausedtotransversethewidthofthepaperform.Hammersarecausedtostrikethebackoftheform,synchro-nizedinsuchawayastoproducethedesiredcharactersintheirproperpositions.blackwrite—aprocessinelectrostaticprintingwherethephotoconductiveelementischargedwithachargeofthesamesignasthatofthetoner.Alightbeam,usedlikea“stylus’’isusedtodischargeonlythoseareasthataretoreceivetonertoformtheimage.Inthedevelopmentprocess,thechargedbackgroundareasrepelthelikechargedtonertothedischargedareasonthephotoconductor.chainprinter—atypeofprinterthatemploysanendlesschain,eachlinkofwhichcontainsafullyformedcharacter.Thechainiscausedtotransversethewidthofthepaperform.Hammersarecausedtostrikethebackoftheform,synchronizedinsuchawayastoproduce...
