Which guides apply to MFC-7440N for mech. similarity to other MFC?

"Hi @einstein333 ,

If you hate it why use it?

This link show that the following printers share the same service reference manual so they should be reasonably similar.

DCP 7030/7040/7045N and MFC 7320/7340/7440N/7450/7840N and 7840W."