Ricoh FT8880 Service Manual page 28

5 June 1992 RDH
16.5.3 Inverter Motor Drive
[A]
[C]
[G]
[B]
[H]
[D] [E]
[F]
[D]
[A]
The inverter motor [A] rotates forwards or backwards according to the
appropriate timing. The inverter middle [B] and inverter [C] rollers rotate
forwards and backwards the inverter motor drive. However, inverter entrance
[D], inverter exit [E], and exit [F] rollers rotate in only one direction.
The relay pulley [G] and inverter roller pulley [H] have a built- in one way
clutch inside. When the inverter motor rotates forwards (black arrow
direction), the inverter roller pulley [H] rotates the inverter entrance roller [D].
In this case the relay pulley [G] freely rotates due to the one way clutch
inside. All rollers rotate in the original feed direction.
While the inverter motor rotates backwards (white arrow direction), the relay
pulley [G] rotates the inverter entrance roller [D]. In this case the inverter
roller pulley [H] freely rotates due to the one way clutch inside. The inverter
entrance, inverter exit, and exit rollers rotate in the original exit direction.
However, the inverter middle and inverter rollers rotate in the original
switching back direction.
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