How to clean this coffee maker completely

We have fluids and tablets to clean the water reservoir, but do not know how to clean the clean bean area.

When I put out the flat, slider drawer, above the large reservoir that catches the used coffee pucks of used grounds, there is a caramilzed residue on the end of the flat slider drawer.

How do I get into the bean grinding area to clean it out? I do not want to damage the grinder. This residue is causing the machine to "bind" so I can't use it until I remove this discharge.