Indeed, more details would have been useful... ;-) TOC fields are different
from TC fields...
TC fields are hidden fields. If you see them it either means that you have
turned on the display of hidden text in the "Tools > Options... > View tab"
dialog, or that you have used the ¶ on the toolbar.
If they print, it means that you have activated the printing of hiddent text
in the print options. This is a "sticky" option, i.e Word keeps it once it is
turned on, but by default it is not activated.