EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a Revision A
Configuration and operating principles Motor, Sensor, Clutch, and Solenoid Specifications 38
Confidential
3.2.4 Printer Main Unit (Paper feed and conveyance system sensors and other sensors)
Figure 3-15. Paper feed and conveyance system sensors and other sensors
Table 3-15. Paper feed and conveyance system sensors and other sensors
No.
Name Function Type
1 PE Sensor
Detects the paper leading edge and paper
trailing edge during paper feeding.
Transmissive
photo-
interrupter
(3.3VDC±5%)
2 Feed Sensor
Used for paper conveyance detection
between the pickup roller and PE sensor.
Transmissive
photo-
interrupter
(3.3VDC±5%)
3
Rear ASF Paper Detection
Sensor
Detects whether or not there is paper inside
the rear ASF unit.
Transmissive
photo-
interrupter
(3.3VDC±5%)
4
Cassette Paper Detection
Sensor
Detects whether or not there is paper inside
the paper cassette.
Transmissive
photo-
interrupter
(3.3VDC±5%)
5
Cassette Detection Sensor
Detects the insertion state of the paper
cassette.
Mechanical
contact
(3.3VDC±5%)
6
Ink Leak Sensor
Detects the ink leakage inside the ink
supply unit.
Analog sensor
(3.3VDC±5%)
7
Temperature and Humidity
Sensor
Measures temp/humidity to set the
appropriate drying time.
Analog sensor
(3.3VDC)