Olivetti d-Copia 300 Operation Manual page 272

Section 10 MAINTENANCE AND OPERATION INFORMATION
2 Remove the cleaning brush.
3 Pull up the left cover 1 handle to open the left cover 1.
4 Clean the separator by moving the cleaning brush from left to
right several times along with the separator.
5 Close the left cover 1.
10-2
● Cleaning the transfer roller
1 Open the front cover.
2 Remove the cleaning brush.
3 Pull up the left cover 1 handle to open the left cover 1.
4 While rotating the gear as shown, clean the transfer roller by
moving the cleaning brush from left to right along with the
transfer roller.
5 Close the left cover 1.