Fill the Coolant Reservoir
Introduction
The coolant is a thermal fluid used to maintain the temperature of the ink
in the printheads and ink reservoirs on the carriage. Temperature control
of the ink is required in order to achieve the correct ink viscosity, which
affects the jetting velocity of the ink and thus the quality of printed images.
The coolant is pumped past a heater that has a thermostat to maintain the
coolant temperature. The coolant flows in series through each of the
printheads and then returns to the coolant reservoir. Each printhead has an
internal sensor that provide temperature feedback. The reservoir block also
has a sensor to provide feedback.
Purpose
If the coolant level is low, the ink and printheads cannot be maintained at
the proper temperature. Periodically check the level of coolant and add
more coolant if it is low.
When to do
Check the coolant bottle, located in the Primary Ink Bay, to see if the level
is low. Keep the coolant level up to ensure proper ink temperature.
NOTE
Change the coolant fluid at least one time every 12 months with new
coolant. Over time and with use, crystal deposits build up in the coolant
and can impede the flow and result in pump damage. Consult your
service representative for details.
Before you begin
Check the coolant level in the bottle. Always keep the bottle full.
Fill the Coolant Reservoir
Chapter 12 - Printer Maintenance
247
User Manual: Arizona (AZ) 440 GT, AZ 440 XT, AZ 460 GT, AZ 460 XT, AZ 480 GT, AZ 480 XT - Rev. B, 4/2013
