The OEM-only toner lock was introduced with a particular revision of firmware (not sure which). If you have a firmware newer than that, it may be possible to f

The OEM-only toner lock was introduced with a particular revision of firmware (not sure which). If you have a firmware newer than that, it may be possible to find an older pre-locking release and downgrade: * https://old.reddit.com/r/printers/comments/w9bc3g/downdgrading_brother_printer_mfc_37_how_to_find/ https://old.reddit.com/r/printers/comments/w9bc3g/downdgradi... * https://news.ycombinator.com/item?id=31860131 https://news.ycombinator.com/item?id=31860131