Drum; Overall - Ricoh C217 Service Manual

5. DRUM

5.1 OVERALL

[A]
[B]
[C]
[F]
[D]
[E]
The drum consists of a metal screen [A] and a cloth screen [B].
The ink pump supplies ink from the ink cartridge into the drum through the
drum shaft [C]. Ink is then spread evenly to the screens by the ink roller [D]
and doctor [E] roller. The developed master [F] with the plastic coating
removed from the image area allows the ink to flow through the exposed
porous material.
The drum is driven by the main motor and turns only clockwise (from the
operator side). The motor speed and the drum stop positions are controlled
by monitoring the main motor encoder.
SM 2-21 C217