Brother DCP-7045N Network User's Manual page 59

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From the Printer Model pull-down list choose your model. For example, choose
Brother DCP-7045N BR-Script3.
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(Mac OS X 10.2.4 to 10.3.x)
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Click Add and the printer will be available from the Printer List.
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(Mac OS X 10.4)
Network printing from Macintosh
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