"installation failed"

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I downloaded the full software plus just the driver(s) for an MG2520 printer.

The software selected was based on auto detection of my Mac OS.

Installatoin of all said  "installation failed".

Additional

Apple says CUPS 10.72.10 is needed, the Canon download is for 11.7.1.0

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Perhaps a soluton would be to purchase a CD as such would presumeably come with an older driver? Is such available?

[Ann2]

Hi  -  I've been struggling all day trying to hook up printer to a new network connection using my Macboook.

Just been over to Asda and bought a USB to cable to connect Mac to printer and....bingo!   Success.   Will sleep well tonight.