hello and welcome to the forum..
i think you have the new style "chicklet" keyboard..
i have not seen a thinkpad with this new style keyboard but i DO have a couple of examples of these, one for my android thinkpad tablet..
and another on the ipad keyboard i use..
i really don't care all that much for these "chicklet" keyboards but no one pays attention to the people who use them..
i rather imagine the hardware maintenance manual for your thinkpad will have something to say about pulling the keytops off to clean underneath..
otherwise one of the forum members who has more experience with these will chime in soon..
