Oki ES3640MFP Component Replacement Manual page 26

Registration Sensor #1
Duplex Entrance Sensor
Duplex Reverse Sensor
Duplex Front Sensor
Duplex Rear Sensor
Toner Cartridge RFID's
Low Toner Sensors
Imaging Unit Drum Phase Sensors
Up / Down Sensor
OHP Sensor
Paper Size Switches
Feeder Registration Sensor
Feeder Level Sensor
Feeder Feed-Out Sensor
Feeder No Paper Sensor
Feeder Low Paper Sensor
Detects media at Registration Roller #1.
Detects media entering the Duplex Unit.
Detects the trailing edge and signals the Duplex Gate Solenoid
to switch position.
Detects the trailing edge and exit from the Duplex Unit.
Detects the leading edge following inversion.
Detects the type of Toner Cartridge installed.
Detects full, low, and empty state of Toner Cartridges.
Detect the position of the Imaging Unit drums.
Detects the position of the Up / Down Sensor
Detects the presence of transparency media.
Detects the size of media loaded in the universal trays.
Detects media at the universal tray's Registration Roller
Detects the lift position of media in the universal trays.
Detects media leaving the universal tray's Feed Rollers
Detects the absence of media in the universal trays.
Detects a low condition of media loaded in the universal trays.
On: media present
Off: media absent
On: media present
Off: media absent
On: media present
Off: media absent
On: media present
Off: media absent
On: media present
Off: media absent
Data
Sensor state transition
Timing
On: absent
Off: present
On: up
Off: down
On: opaque
Off: transparent
Switch Combinations
On: media present
Off: media absent
On: media present
Off: media absent
On: media present
Off: media
On: media present
Off: media absent
On: media present
Off: media absent