| 摘要 |
PROBLEM TO BE SOLVED: To efficiently process printing by analyzing printing data landed and income at a port having a higher priority order preferentially to printing data of another prior income port. SOLUTION: In case of inputting printing data via one input port, before starting to analyze the input printing data, a CPU 5 decides whether printing data is input via an input port of higher priority order than one input port or not, and conducts analyzing/printing of the data input via the port of the higher priority order than that of the one port prior to analyzing/printing of the data input via the one port in case of deciding the input of the data via the port of the higher priority order than that of the one port.
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