Chapter 2
2-46
2.5.3 Carriage system
0020-5567
F-2-39
Printhead fixer lever sensor
The photointerrupter-type printhead fixer lever sensor detects the opening and closing of the printhead fixer lever.
When the printhead fixer lever is closed, the sensor arm shields the sensor light, causing the sensor to detect the closed state of the printhead fixer lever.
Carriage HP sensor
The photointerrupter-based carriage HP sensor detects the home position of the carriage.
Installed on the right side plate of the printer, the sensor detects an edge of the carriage home position on the carriage unit under carriage movement control.
The printer establishes the carriage home position from the position at which its edge is detected as a reference position.
Linear encoder sensor
Mounted on the back of the carriage, the linear encoder detects the position of the carriage from a slit in the linear scale during its movement.
Lift cam sensor
A photointerrupter-based sensor. After the sensor light is shielded by the flag, the lift motor is driven by a predetermined number of pulses to regulate the separation
between the printheads and platen automatically.
Ambient temperature sensor
The thermostat-based ambient temperature sensor mounted on the head relay PCB detects the ambient temperature to which the carriage is exposed.
The resistance of the thermistor that varies as a function of temperature changes in the printer is transmitted to the main controller via the carriage relay PCB.
The ambient temperature is used to help calibrate the head temperature sensor and detect abnormal ambient temperatures.
Head temperature sensor
The head temperature sensor detects the temperature of the printhead.
The printhead temperature is transmitted to the main controller via the carriage relay PCB.
The printhead temperature is used to help control the head drive and detect abnormal printhead temperatures.
Multi sensor
Lift cam sensor
Carriage HP sensor
Linear scale
Linear encoder sensor
Printhead fixer lever sensor
Содержание imagePROGRAF iPF815
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