Remedies For Fatal Error - Epson Stylus Color 980 Service Manual

EPSON Stylus Color 980

3.1.1.5 Remedies for Fatal Error

A fatal error is basically caused by any of the following conditions:
1. The printer does not detect the carriage in the home position.
2. The printer does not detect signals from the linear scale.
3. The ASF sensor does not detect the ASF home position.
The following tables show various causes of the error and
corresponding solutions. Be sure to follow the steps correctly to solve
the problems.
NOTE: If the finding for the question is Yes, take the action described in
the right column. If "No", proceed to the next step.
Table 3-13. Remedies for Fatal Error
Step Check Point
1 Has the CRHP Check the CRHP sensor visually. Connect the
sensor come off the connector properly. Make sure the connector is
printer mechanism connected to the indicated position on the relay
frame? board. Also, check that there is no dust nor paper
debris between the sensor parts.
Is the connector for
the CRHP sensor
disconnected?
2 Has the encoder belt Referring to step 2 in Section 3.1.2.2, check that the
come off? encoder belt is set between the sensor parts. Also
check that the sensor is free from dust and paper
debris.
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Table 3-14. Remedies for Fatal Error
Step Check Point
3 Has the ASF sensor Referring to the figure below, check that the ASF
come off? sensor is attached to the correct position.
Is the sensor for the Check that both connectors 1 and 2 are securely
ASF disconnected? connected.
4 Has the coil for the Since the CR motor is controlled by the Bipolar
CR motor burnt? system, measure the coil resistance using the tester
as shown below.
<Resistance: 5.8
Note: Be
sure to
measure the
resistance at
two points
shown in the
figure below.
5 Has the coil for the Measure the internal coil resistance of the PF motor
PF motor burnt? in the same manner as for the CR motor.
<Resistance: 8.1
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