[{"data":1,"prerenderedAt":123},["ShallowReactive",2],{"zpl-documentation-caret-jt":3},{"guide":4,"previousGuide":109,"nextGuide":113,"coverage":117},{"canonical":5,"slug":6,"title":7,"summary":8,"reference":9,"category":10,"effect":11,"scope":12,"status":13,"limitations":14,"signatures":16,"searchText":108},"^JT","caret-jt","Head Test Interval","^JT configures head Test Interval. It applies to the printer session and subsequent formats and controls printer hardware or connectivity rather than label pixels.","https:\u002F\u002Fdocs.zebra.com\u002Fus\u002Fen\u002Fprinters\u002Fsoftware\u002Fzpl-pg\u002Fc-zpl-zpl-commands\u002Fr-zpl-jt.html","printer","device","session","non-rendering",[15],"Recognized by the renderer but has no label-raster effect.",[17],{"id":18,"syntax":19,"parameters":20,"examples":107},"caret-jt-signature-1","^JT####,a,b,c",[21,47,68,88],{"id":22,"key":23,"name":24,"description":25,"defaultValue":26,"choices":27,"range":30,"required":33,"repeatable":33,"examples":34},"0-0-0-value","####","four-digit number of labels printed between head tests","Sets four-digit number of labels printed between head tests. It can be omitted when the documented default is suitable.","0000 (off)",[28,29],"0000","9999",{"min":31,"max":32},0,9999,false,[35,41],{"id":36,"command":5,"signatureIndex":31,"parameterId":22,"title":37,"description":38,"value":28,"source":39,"filename":40,"cursorOffset":31,"preview":33},"caret-jt-0-0-0-value-1-0000","#### = 0000","Uses 0000 for four-digit number of labels printed between head tests while the other command values stay at representative defaults.","^JT0000,N,0,9999\n","caret-jt-value-1.zpl",{"id":42,"command":5,"signatureIndex":31,"parameterId":22,"title":43,"description":44,"value":29,"source":45,"filename":46,"cursorOffset":31,"preview":33},"caret-jt-0-0-0-value-2-9999","#### = 9999","Uses 9999 for four-digit number of labels printed between head tests while the other command values stay at representative defaults.","^JT9999,N,0,9999\n","caret-jt-value-2.zpl",{"id":48,"key":49,"name":50,"description":51,"choices":52,"enumValues":55,"required":33,"repeatable":33,"examples":56},"0-1-0-a","a","manually select range of elements to test","Sets manually select range of elements to test. It can be omitted when the documented default is suitable.",[53,54],"N","Y",[53,54],[57,62],{"id":58,"command":5,"signatureIndex":31,"parameterId":48,"title":59,"description":60,"value":53,"source":39,"filename":61,"cursorOffset":31,"preview":33},"caret-jt-0-1-0-a-1-n","a = N","Uses N for manually select range of elements to test while the other command values stay at representative defaults.","caret-jt-a-1.zpl",{"id":63,"command":5,"signatureIndex":31,"parameterId":48,"title":64,"description":65,"value":54,"source":66,"filename":67,"cursorOffset":31,"preview":33},"caret-jt-0-1-0-a-2-y","a = Y","Uses Y for manually select range of elements to test while the other command values stay at representative defaults.","^JT0000,Y,0,9999\n","caret-jt-a-2.zpl",{"id":69,"key":70,"name":71,"description":72,"choices":73,"range":75,"required":33,"repeatable":33,"examples":76},"0-2-0-b","b","first element to check when parameter a is Y","Sets first element to check when parameter a is Y. It can be omitted when the documented default is suitable.",[74,29],"0",{"min":31,"max":32},[77,82],{"id":78,"command":5,"signatureIndex":31,"parameterId":69,"title":79,"description":80,"value":74,"source":39,"filename":81,"cursorOffset":31,"preview":33},"caret-jt-0-2-0-b-1-0","b = 0","Uses 0 for first element to check when parameter a is Y while the other command values stay at representative defaults.","caret-jt-b-1.zpl",{"id":83,"command":5,"signatureIndex":31,"parameterId":69,"title":84,"description":85,"value":29,"source":86,"filename":87,"cursorOffset":31,"preview":33},"caret-jt-0-2-0-b-2-9999","b = 9999","Uses 9999 for first element to check when parameter a is Y while the other command values stay at representative defaults.","^JT0000,N,9999,9999\n","caret-jt-b-2.zpl",{"id":89,"key":90,"name":91,"description":92,"choices":93,"range":94,"required":33,"repeatable":33,"examples":95},"0-3-0-c","c","last element to check when parameter a is Y","Sets last element to check when parameter a is Y. It can be omitted when the documented default is suitable.",[29,74],{"min":31,"max":32},[96,101],{"id":97,"command":5,"signatureIndex":31,"parameterId":89,"title":98,"description":99,"value":29,"source":39,"filename":100,"cursorOffset":31,"preview":33},"caret-jt-0-3-0-c-1-9999","c = 9999","Uses 9999 for last element to check when parameter a is Y while the other command values stay at representative defaults.","caret-jt-c-1.zpl",{"id":102,"command":5,"signatureIndex":31,"parameterId":89,"title":103,"description":104,"value":74,"source":105,"filename":106,"cursorOffset":31,"preview":33},"caret-jt-0-3-0-c-2-0","c = 0","Uses 0 for last element to check when parameter a is Y while the other command values stay at representative defaults.","^JT0000,N,0,0\n","caret-jt-c-2.zpl",[],"^jt head test interval ^jt configures head test interval. it applies to the printer session and subsequent formats and controls printer hardware or connectivity rather than label pixels. printer device session non-rendering #### four-digit number of labels printed between head tests sets four-digit number of labels printed between head tests. it can be omitted when the documented default is suitable. a manually select range of elements to test sets manually select range of elements to test. it can be omitted when the documented default is suitable. b first element to check when parameter a is y sets first element to check when parameter a is y. it can be omitted when the documented default is suitable. c last element to check when parameter a is y sets last element to check when parameter a is y. it can be omitted when the documented default is suitable.",{"canonical":110,"slug":111,"title":112},"~JS","tilde-js","Change Backfeed Sequence",{"canonical":114,"slug":115,"title":116},"^JU","caret-ju","Configuration Update",{"commands":118,"signatures":119,"parameters":120,"examples":121,"previewExamples":122},223,225,630,1552,722,1786111153332]