Olympus OEP-3 Service Manual page 157

5-1-2. Sensors
The names and functions of sensors are as follows:
No. Name
1
Head position sensor
2
Head FG sensor
3
Platen home position sensor
4
Paper feed timing sensor
5
Direct chuck sensor
6
Paper jamming sensor
7
Platen temperature sensor
8
Ribbon take-up FG sensor
9
Ribbon supply FG sensor
0
Ribbon tele-file antenna
!-
Ribbon code sensor
!=
Ribbon cartridge sensor
![
Paper removal timing sensor
!]
Paper feed FG sensor
!\
Tray position sensor
!;
Paper sensor
OEP-3 V1 (UC)
Type
Transmission x 4
Photo-interrupter
Transmission x 1
Photo-interrupter
Transmission x 1
Photo-interrupter
Transmission
Photo-interrupter with arm
Reflection
Photo-interrupter
Transmission
Photo-interrupter with arm
Thermistor
Transmission x 1
Photo-interrupter
Transmission x 1
Photo-interrupter
Board only
Transmission (with write guide)
LED & phototransistor
Transmission
LED & phototransistor
Transmission x 1
Photo-interrupter
Transmission x 1
Photo-interrupter
Transmission x 2
Photo-interrupter
Transmission x 1
Photo-interrupter
Function
Detects the position of the head.
Detects rotation of the head motor.
Detects the home position of the platen.
Detects the paper edge at paper feed time.
Detects paper at the platen chuck.
Detects a paper chuck error.
Detects the platen ambient temperature.
Detects rotation of the ribbon take-up motor.
Detects rotation of the ribbon supply motor rotation.
Transmits the ribbon tele-file information.
Detects the bar code of each ribbon color.
Detects the ribbon cartridge.
Detects a paper remove error and paper overflow in the paper
remove tray.
Detects how much paper is fed.
Detects a tray motor cam position.
Detects paper in the paper feeder tray.
5-3