The drivers are available from Brother - as either RPM or DEB.
While RPM Solus trickery can allow an install of sorts - no print no facs.
Result as complaints of no cupswrapper and permissions difficulties with Cups itself. Additionally, Scanner detection does not happen correctly.
All-in-all, a fail.
Specifically, the driver(s) being requested are for Brother MFC-L2703DW, and Brother describes these as MFC-L2700 series.
This printer is mass-market in Australia, sold through the largest office supply chain, so they're not at all rare.
The drivers appear to be generic monochrome MFC Laser printers in the brother range.
Brother website specifies differing procedures pre-install, depending on the relevant Linux install. Solus is 'different'.
Needs testing (Please comment if it's working)
- HL Brother Drivers
- DCP Brother Drivers
- MFC Brother Drivers
- DCP-L2512D https://drive.google.com/open?id=1VtdiPdt7GpHanJKbyMrXB3Q8vwdkkFtb
- MFC-J470DW https://drive.google.com/open?id=1u0KlDlSNc8Zh4u62ga4-c7UQylmn2PTB