Epson STYLUS 3000 Service Manual page 130

Troubleshooting
Sensor
HP sensor
Rear PE sensor
Front PE sensor
Release sensor
Black ink cartridge
sensor
Cyan ink cartridge
sensor
Magenta ink cartridge
sensor
Yellow ink cartridge
sensor
Black ink end sensor
Cyan ink end sensor
Magenta ink end
sensor
Yellow ink end sensor
ASF PW sensor
ASF PL sensor
ASF PQ sensor
Platen gap sensor
CR PW sensor
Thermistor
1: When it is close, output voltage level is 2.5
2: When it is open, output voltage level is lower than 2.5V.
5-2
Table 5-2. Sensor Status
Connector No.
Test pin No.
CN6
Pin 1 and Pin 2
CN5
Pin 1 and Pin 2
CN4
Pin 1 and Pin 2
CN3
Pin 1 and Pin 2
CN14
Pin 3 and Pin 4
CN13
Pin 3 and Pin 4
CN7
Pin 3 and Pin 4
CN12
Pin 3 and Pin 4
CN14
Pin 1 and Pin 2
CN13
Pin 1 and Pin 2
CN7
Pin 1 and Pin 2
CN12
Pin 1 and Pin 2
CN8
Pin 2 and Pin 4
CN11
Pin 1 and Pin 2,
Pin 3 and Pin 4,
Pin 5 and Pin 6
CN10
Pin 3 and Pin 2
CN9
Pin 1 and Pin 2
CN21
Pin 24 and Pin 25(GND)
CN18
Pin 2 and GND

Signal level
1
In the false absorbing position
Close
2
Off the false absorbing position
Open
HIGH Paper loaded
LOW No paper loaded
HIGH Paper loaded
LOW No paper loaded
HIGH Tractor feed mode
LOW Friction feed mode
HIGH No black ink cartridge installed
LOW Black ink cartridge installed
HIGH No cyan ink cartridge installed
LOW Cyan ink cartridge installed
HIGH No magenta ink cartridge installed
LOW Magenta ink cartridge installed
HIGH No yellow ink cartridge installed
LOW Yellow ink cartridge installed
HIGH Black Ink end
LOW Black Ink remaining
HIGH Cyan Ink end
LOW Cyan Ink remaining
HIGH Magenta Ink end
LOW Magenta Ink remaining
HIGH Yellow Ink end
LOW Yellow Ink remaining
Analog data
Maximum 10k
HIGH Not set
LOW Set
Analog data
Maximum 10k
HIGH Thick paper side
LOW Thin paper side
HIGH Paper detected
LOW No paper detected
Analog data
Maximum 10k
or higher.
Detected condition
(at 24 C)
Rev. A