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Epson Stylus COLOR 800 Service Manual: Sensor Check Points; Motor Check Points

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EPSON Stylus &2/25 800

5.2.2 Sensor Check Points

Table 5-2 shows the check points for each sensor.
Sensor Connector
Test pin No
No.
CN6 (HP sensor)
1: HP
2: GND
3: HPV
CN7
1: ASF
(ASF HP sensor)
2: GND
3: ASFV
CN8 (PE sensor)
1: PE
2: GND
3: PEV
CN9
1: BCO
(Black cartridge
3: GND
detecting sensor)
CN10
1: CCO
(Color cartridge
3: GND
detecting sensor)

5.2.3 Motor Check Points

Table 5-3 shows the check points for each motor.
Table 5-3. Coil Resistance for Each Motor and Check procedure
Sensor Connector
Test pin No
No.
CN11
1: ASFA
(ASF/Pump motor)
2: ASF-A
3: ASFB
4: ASF-B
CN12
1: CRA
(CR Motor)
2: CR-A
3: CRB
4: CR-B
CN13
1: PFA
(PF motor)
2: PF-A
3: PFB
4: PF-B
5-2
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Table 5-2. Check Points for Each Sensor
Test procedure
(Meter is set to the DC voltage.)
Set the "+" lead of the meter to the
pin 1 and "-" lead of the meter to
the pin 2.
Set the "+" lead of the meter to the
pin 1 and "-" lead of the meter to
the pin 2.
Set the "+" lead of the meter to the
pin 1 and "-" lead of the meter to
the pin 2.
Set the "+" lead of the meter to the
pin 1 and "-" lead of the meter to
the pin 3.
Set the "+" lead of the meter to the
pin 1 and "-" lead of the meter to
the pin 3.
Test procedure
(Meter is set to Ω.)
Set one lead of the meter to the pin 1
and the other lead to the pin 3.
Set one lead of the meter to the pin 2
and the other lead to the pin 4.
Set one lead of the meter to the pin 1
and the other lead to the pin 3.
Set one lead of the meter to the pin 2
and the other lead to the pin 4.
Set one lead of the meter to the pin 1
and the other lead to the pin 3.
Set one lead of the meter to the pin 2
and the other lead to the pin 4.
Meter reading
Outputs High at the home
position.
Outputs Low at other positions.
Outputs Low at the home position.
Outputs High at other positions.
Outputs Low when paper is
loaded.
Outputs High when there is no
paper loaded.
Outputs Low when the cartridge is
installed.
Outputs High when the cartridge is
not installed.
Outputs Low when the cartridge is
installed.
Outputs High when the cartridge is
not installed.
Meter reading
9.3 Ω ± 10 %
(at 25 °C/one phase)
7.8 Ω ± 10 %
(at 25 °C/one phase)
5 Ω ± 10 %
(at 25 °C/one phase)
Rev. A

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