c452 552 652 image chips

[PeterG]

As has already been stated, the original iu's that ship with the copier don't have chips or the harness to install the chips.
You can however remove the harness from expired replacement iu's & install it in the once used original image units, then either replace or reset the chip

[stefanv]

The iu's in a new mc does not have the chips, its factory reset....Only the replacement iu's have the chips...You will see your connector on iu only has wires for tcr sensor...