Server IP：  Port： 

JSON calls lsf to pass, preview, and print data formats：
{ "Printer": { "printername":"ZM3R", "printerdpi":"203", "printSpeed":"4", "printDarkness":"10" }, "Operate":"print", "lsfFilePath": "80X50_rw.lsf",//http://www.elfdt.com/temp/80X50_rw.lsf Templates can be stored in a web directory "labels": [ { "lsfFileVarList": [ { "lsfFileVar": { "varname": "model", "varvalue": "E43061" } }, { "lsfFileVar": { "varname": "assetcode", "varvalue": "2021121300020001" } } ] }, { "lsfFileVarList": [ { "lsfFileVar": { "varname": "model", "varvalue": "E-43062" } }, { "lsfFileVar": { "varname": "assetcode", "varvalue": "2021121300020002" } } ] } ] }

  

Printer status：

TAB preview (Preview the first one only)：