1. A printer processing method executed by a computer coupled to the printer the method comprising: providing said computer with a mark-up language parsing unit interpreting mark-up language documents written in a mark-up language, and a port control unit controlling a communication port communicating with a printer having multiple mechanisms including a cover, a paper cutter, and a transportation unit to transport a print-medium, wherein: the mark-up language parsing unit executes a binary data conversion step for receiving a first mark-up language document and converting the first mark-up language document to binary data including a mechanism control command that can be processed by the printer and that controls to at least one of the paper cutter and the transportation unit, the mechanism control command being based on model-dependent information that is specific to the printer and that defines a rule for converting the first mark-up language document to the mechanism control command; the port control unit executes a binary data output step for outputting the converted binary data to the printer, based on port information relating to the communication port; the port control unit executes a status information acquisition step that receive status information related to at least one of the mechanism and outputted from the from the printer as binary data; and the model-dependent information defines rules for converting the received, binary data, status information to a second mark-up language document; the first mark-up language document is an XML document output from a POS application running a transaction process and generating transaction data; and the mark-up language parsing unit further executes a status information conversion step for converting the received status information to the second mark-up language document based on the model-dependent information and outputting the second mark-up language document as an XML document to the POS application.
1. A printer processing method executed by a computer coupled to the printer the method comprising: providing said computer with a mark-up language parsing unit interpreting mark-up language documents written in a mark-up language, and a port control unit controlling a communication port communicating with a printer having multiple mechanisms including a cover, a paper cutter, and a transportation unit to transport a print-medium, wherein: the mark-up language parsing unit executes a binary data conversion step for receiving a first mark-up language document and converting the first mark-up language document to binary data including a mechanism control command that can be processed by the printer and that controls to at least one of the paper cutter and the transportation unit, the mechanism control command being based on model-dependent information that is specific to the printer and that defines a rule for converting the first mark-up language document to the mechanism control command; the port control unit executes a binary data output step for outputting the converted binary data to the printer, based on port information relating to the communication port; the port control unit executes a status information acquisition step that receive status information related to at least one of the mechanism and outputted from the from the printer as binary data; and the model-dependent information defines rules for converting the received, binary data, status information to a second mark-up language document; the first mark-up language document is an XML document output from a POS application running a transaction process and generating transaction data; and the mark-up language parsing unit further executes a status information conversion step for converting the received status information to the second mark-up language document based on the model-dependent information and outputting the second mark-up language document as an XML document to the POS application. 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.