Ink Supply Mechanism - Ricoh C226 Service Manual

DRUM SECTION

7.7 INK SUPPLY MECHANISM

[H]
[F]
[C]
[J]
[G]
[I]
[E]
[B]
[A]
[D]
Ink is supplied from the ink cartridge [A] to the ink roller by the ink pump [B]
through the holes in the drum shaft [C].
Drum rotation is transmitted through gear [D] to gear [E].
However, rotation is not transmitted to gear [F] due to the spring clutch [G].
When the ink on the ink roller decreases and the ink detector circuit is turned
on, the ink supply solenoid [H] will energize and the ink supply stopper [I] will
be released from the clutch sleeve allowing the gear [F] and gear [J] to turn.
The pin [H] will move the pump shaft up and down as gear [J] rotates.
Therefore, the ink in the ink cartridge will be sucked into the pump. The pump
will then push the ink out and onto the ink roller through the holes in the drum
shaft [C].
* One stroke of the ink pump occurs for every 2 rotations of the drum.
C226 2-60 SM