Can I download SAP R/3 Device Type Extensions from this site?

SAP Device Type Extensions can not be downloaded from the Developer Support website.

To download SAP R/3 Device Type Extensions for these machines, please go to http://usa.canon.com/cusa/office/products/software/network_device_manage.... Under "DRIVERS & SOFTWARE" is where you will find the downloads that you need.

You should also check the SAP website for the latest released Extensions http://www.service.sap.com/.