5-24
Confidential
*1 Exclusive to duplex scanning models
(3) Change the detecting conditions (e.g., insert paper through the registration sensor, open the
ink cartridge cover or document scanner, or remove the ink cartridges), and then check that
the indication on the LCD changes according to the sensor states.
(4) Press the X key to stop this operation and return the machine to the initial stage of the
maintenance mode.
Locations of Sensors and Actuators
LCD Sensors Sensing status (display/no display)
FC *1 Document cover sensor Cover closed/Cover opened
VT Head thermistor Normal temperature/Abnormal temperature
T1 High temperature detector in the complex IC
(for main PCB)
Normal temperature/Abnormal temperature
Document detection
sensor
Head thermistor
Registration sensor
Purge cam sensor
Black ink cartridge
detection sensor
Ink absorber full sensor
Yellow ink cartridge
detection sensor
Cyan ink cartridge
detection sensor
Black ink
remaining sensor
Yellow ink
remaining sensor
Cyan ink
remaining sensor
Magenta ink
remaining sensor
Switchback paper
sensor
Magenta ink cartridge
detection sensor
Document
scanning
position sensor
Document
cover sensor
Document
scanner sensor
High temperature detector in the complex IC
(for main PCB)
Ink cartridge cover sensor
(5_003_1_E)
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