I wrested an LCD (TD024THEB5) from an older Lexmark X4975 printer and did some research that resulted in locating a datasheet (for the TD024THEB2 model, though they are probably quite similar) with a pinout. Unfortunately, this is the -only- info I can find, but it does include the SPI pin definitions, capacitor connections and so on. I'm not sure where to go from here, but has anyone had any luck with interfacing with this particular 40 pin LCD or may be able to point me in a better direction? Thanks!
Its a bit cheeky, but plenty of places sell them e.g. on AliExpress, so you could contact one of the suppliers asking about a data sheet