Ricoh C211 Service Manual page 489

6. Ink Supply Mechanism
[E]
/
-\\\
c]
Ink is supplied from the ink cartridge [K] to the ink roller by the ink pump [1] through
holes in the drum shaft [J].
Drum rotation is transmitted through gear [A] to gear [B].
However, rotation is not transmitted to the gear [D] due to the spring clutch [C].
4
When the ink on the ink roller [L] decreases and the ink detector turns on, the ink supply
solenoid [E] turns on and the ink supply stopper [F] releases from the clutch sleeve al-
lowing the gear
[D]
and gear [G] to turn.
The pin [H] moves the pump shaft up and down as gear [G] rotates. Therefore, the ink in
the ink cartridge is sucked into the pump [1]. The pump then pushes the ink out onto the
ink roller through the 4 holes in the drum shaft [J].
* One stroke of the ink pump occurs for every 2 rotations of the drum.
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