As the carriage holding the print head travels at the printing speed, the character generator sends
print command pulses to the circuits driving the piezoelectric actuators embedded in the print
head.
For the head thermister and the head property EEPROM, refer to Section 2.3.
(2) Ink cartridge
The equipment uses four ink cartridges (black, yellow, cyan, and magenta) of disposable type to
supply ink to the print head. As shown below, an ink cartridge contains an ink-impregnated
urethane foam. If ink-jet print operation or purging operation takes place, ink comes out of the
urethane foam and is supplied to the print head through the ink room, filters, and manifold.
For the ink cartridge sensors on the carriage PCB, refer to Section 2.3.
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