MFP 1135n no software

I do not seem to have the disk that came with this printer (probaby threw it out figuring that I could download the software, not sure though I do tend to keep dirver disks.).  I am in need of the network scan and fax software however searching on the website by my service tag number produces an error.

I don't find the error much of an issue because I have no issues searching by name, but when I do, I have no option to download the required software. Especially the Scan and Fax software, I cannot find this software anywhere online.

As a copier and as a printer it's working fine, but now I need the Network scanning features and cannot use them because of the lack of software.  Could you please tell me where I can download this software?

-Thank you