Olivetti d-Copia 6500MF Plus Service Manual page 718

(8) Direction of installing the principal fan motors
When detaching or refitting the fan motors, be careful of the airflow direction (intake or exhaust).
Eject front fan motor
(Rating label:inside)
Fuser front fan motor
(Rating label:outside)
Developer fan motor 1
(Rating label:inside)
Service Manual
Developer fan motor 2
(Rating label:inside)
Figure 1-5-226
Eject fan motor 2
(Rating label:inside)
IH fan motor
(Rating label:inside)
Duplex fan motor
(Rating label:inside)
1-5-138
Fuser fan motor 2
(Rating label:inside)
Eject fan motor 1
(Rating label:inside)
Fuser fan motor 1
(Rating label:inside)
2N8/2N7
Y116520-3