No. Component Function
4 Temperature/Humidity
Sensor
Located on the right side of the machine above the ink
supply unit. The temperature/humidity thermistor constantly
measures temperature and humidity inside the machine. The
printer uses these readings to adjust the operation of the
machine.
5 Main Ink Level Sensor 1 Checks the position of the K1 on-carriage filler sensor after
the OCFS of the K1 print head detects a problem in the ink
sub tank (low ink, ink end, or excess air). If the reading of
main ink level sensor 1 confirms the condition, it will signal
the machine to supply more ink or purge air from the tank.
This sensor (also known as "FS1") services only the OCFS of
the K1 ink supply tank.
6 Air Release Solenoid Located on the right side of the machine. When the air level
sensors detect excess air in an ink sub tank, the system
activates the plunger of the air release solenoid to purge air
from the tank. The partial vacuum created by the suction
pulls in the sides of the tank so that the tank can fill with
more ink.
Maintenance Unit
Electrical Components
755
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