Drum; Notes - Ricoh C231 Service Manual

DRUM

6.6 DRUM
6.6.1 OVERVIEW
Procedure
Ink is supplied inside the drum, through the drum shaft.
The ink roller [A] and the doctor roller [B] spread the ink evenly on the screens.
Ink passes through the metal screen [C].
Ink passes through the cloth screen [D].
Ink passes through the holes in the master that were made by the thermal head.
Ink reaches the paper.
NOTE: 1) The drum is driven by the main motor and turns only clockwise.
2) The main motor speed and the drum stop positions are controlled by
monitoring the motor encoder.
3) The ink pump, which is outside the drum, supplies ink from the ink
cartridge into the drum through the drum shaft.
C231/C237/C238
[B]
[A]
6-22
[C]
[D]
C238D010.WMF
SM