Ricoh Aficio SP C231, Service Manual, Page: 70 / 247

DRUM
2-30
C231 SM
2.5.3 INK SUPPLY MECHANISM
Ink is supplied from the ink cartridge to the ink roller [B] by a pump [C]. The ink
pump is driven by the ink supply motor (a dc motor) [D]. There is a pin on the pump
drive gear [E] which is coupled with the pin holder [F] on the pump piston shaft.
This mechanism converts the gear rotation into a piston motion.
Ink drops through the holes in the drum shaft [A] and onto the ink roller [B].
NOTE: There are 4 holes in the shaft for the B4 size drum models, and two holes
for the Legal and A4 drum versions.
C231D540.WMF
[B]
[C]
[D]
[E]
[F]
[A]