Ricoh D197 Service Manual page 142

SPDF DF3080
15. Attach the ferrite cores to the DF cable and the CIS cable.

Ferrite core: K3 NF-70-A (N) BK0 is for the DF cable

Ferrite core: K3 NF-75 (N) BK0 is for the CIS cable.
16. Remove the scanner cable gap cover from the scanner rear cover.

DF cable gap [A], CIS cable gap [B]
17. Reassemble the machine.
18. Attach the decals: "Original" [A] and "Original table set" [B].
D197/D198/D199/D200/D201/D202 2-72 SM