Apologies for the new thread, I've searched but to no avail.

I've looked at a bunch of the Heathrow T5 maps but I can't see where in departures the self service bag drops are located. I appreciate I'll likely be able to ask at the airport, but given how busy it is likely to be today I thought it was best to get my information in advance! Just a zone would be great, if anyone knows.

Thanks.