Ricoh D131 Service Manual page 140

Key Counter Interface Unit 20pin (B870)
Rev. 09/06/2012
⇒
10. Close the cover of the controller box.
11. Lead the harness [B] for the key counter through the opening [A], and then reattach the rear
cover.
[B]
[A]
D131/D132/D133 2-96 SM