What is the process for the 90 day check-in at Thai immigration, and what forms are needed?

Jomtien/Pattaya immigration requires no paperwork, copies, nothing but passport for regular 90 day check-in. I learned during my first check-in at Lampang office that they want copies of all the usual passport pages, etc every time you check in. But I've forgotten, is there a standard 90 day check-in form even if rarely used? Maybe the officer told me last time to fill out TM 30 also for 90 day. Not sure. Just thought I would ask here about a form. More importatnt is that I walk in with passport copies and copy of house book, Can take care of form there. What I really hope is that this week I can make online check-in work since having changed my address and checked in once. I've never been able to get it to work before.