Epson Stylus Color 980 Service Manual page 91

EPSON Stylus Color 980
Table 3-15. Remedies for Fatal Error (continued)
Step Check Point
6 Is the lever Check if the two
securing the hooks securing
planetary gear the planetary gear
dislocated from fixing lever to the
the frame? Pump/ASF switch
mechanism are
Has the tension
released from the
spring come off?
frame.
Also, check the
tension spring's
condition.
7 Has the coil for Measure the internal coil resistance of the pump/ASF
the Pump/ASF motor in the same manner as for the CR motor (Step 4).
motor burnt?
<Resistance: 7.0
8 Is the coil for the Referring to the figure below, measure the coil
ASF solenoid resistance of the solenoid coil using a tester. Note the
burnt? tester can be used regardless of the polarity.
<Resistance: 588
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Table 3-16. Remedies for Fatal Error (continued)
Step Check Point
9 Is the CRHP sensor Check for the correct voltages at 3-pin connector
defective? shown in the figure below.
Turn the printer on and check the voltage is correct
as follows:
• When the CR has come in the home position, the
voltage rises to 2.4 VDC or higher.
• When the CR has left the home position, the
voltage drops to 0.7 VDC or lower.
10 Is the ASF sensor Check for the proper voltage in the same manner as
defective? described in the previous step. The ASF connector
(3-pin) location on the relay board is also shown in
the figure above. The pin configuration is also the
same as CRHP sensor.
At power on, the ASF reset operation is performed,
and the ASF Sensor detects ASF home position.
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