Components
Item Function
O-axis coupling assembly This is a rubber spring link located on the side plate of the scan
axis (area where the Carriage moves). It links the primer system
with the Carriage when the Carriage is located in its maximum left
position. This system ensures the pressure from the primer
reaches the printhead for nozzle servicing.
Prime Pump This is an air pump which provides the necessary pressure for
printhead servicing and nozzle repair. The Prime Pump is
suspended on a rubber holder to minimize the noise that the
Prime Pump makes while in operation.
Primer Tubes The tubes take the air from the Prime Pump to the o-axis
coupling. There is a T link feature connected to a tube that goes
inside the service station; the purpose of this tube is to release
the air pressure from the system. The tube is pinched by the
shuttle of the service station when reaching a certain position;
this action closes the circuit and allows the system to be
pressurized. With the movement of the service station the tube is
released, allowing the pressure from the system to escape.
Notes and considerations
Any leakage in the primer system will generate poor or no priming, this will aect nozzle heath (or even cause
the printhead startup to fail). Bear in mind that the system is not just for the Prime Pump and tubes, the
prime pressure is transmitted via the o-axis coupling to the Carriage and from there to the printhead
assembly and from there to the cartridges.
ENWW Subsystems 11
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