4. The printer processing method described in claim 1 , wherein the POS application manages the printer by use of the status information in the second mark-up language document output as XML document.
4. The printer processing method described in claim 1 , wherein the POS application manages the printer by use of the status information in the second mark-up language document output as XML document. 5. The printer processing method described in claim 4 , wherein the printer prints based on the transaction process.