Ricoh B064 SERIES Service Manual page 1321

[A]
22. Remove the blank keytop [A] (5th from the top) and replace it with one of the
keytops provided [B] (either the "Facsimile" keytop or the fax symbol keytop).
SM
CÓPIA NÃO CONTROLADA
11
CÓPIA NÃO CONTROLADA
FAX OPTION TYPE 7500 (B819)
[B]
B819R111A.WMF
B819/B820