Hi,
There's no 'global website' for this information. There are some projects that cover a specific slice (
linux on laptops,
The Linux Foundation to name just 2). There are also HCL lists (HCL = Hardware Compatibility List), like the one
right here on LQ.
But Google, as always, is your friend.
linux lexmark X 1270 gives back a lot of URL's. Here's one that seems appropriate to your question:
OpenPrinting database - Printer: Lexmark x1270 (from the Linux Foundation site mentioned earlier).
Hope this helps.