for the umpteenth time i’m having to get the printer working.

IJ Network Tool finds the printer:  canon downloads

network setup guide: MX850_NSG_EN_V1.pdf

file install locations:

/Library/Printers/Canon/BJPrinter/Utilities/Canon IJ Network Tool
/Library/Printers/Canon/BJPrinter/Utilities/Canon IJ Printer Utility

canon drivers for snow leopard