Specifications

REV.-A
2.1.4.2 Pump Mechanism
The pump draws ink from the nozzles of the printhead and sends it to the wasted ink drain tank. This
operation is performed to eliminate
dust./bubbles within the nozzles.
Figure 2-25 illustrates the operation of the pump. When the pump motor rotates
CCW, the pulley pumps
in the wheel pump unit rotate in the direction of the arrow while compressing the ink tube. This makes
the ink in the tube move toward the used ink pack.
When the pump motor rotates CW, the pulley pumps are shifted inward and detached from the ink tube.
Pumping (Pump
motor:CCW)
@.@+@
No Pumping (Pump motor:CW)
Wheel Pumo
c
‘+
“/’
Pulley Pump
Pumping (CCW)
No Pumping (CW)
Figure 2-25. Pump Movement
2-16