Remedies For Fatal Error - Epson PH890 Service Manual

EPSON Stylus Photo 890/1290

3.1.1.7 Remedies for Fatal Error

A fatal error is basically caused by any of the following conditions:
n
The printer fails to detect the CR home position.
n
The printer fails to detect signals from the linear scale.
n
The ASF sensor fails to detect the ASF home position.
The following table shows various causes of the fatal error and corresponding
solutions. Be sure to follow the steps correctly to troubleshoot the fatal error.
NOTE: If the exhibited problem is similar to a problem listed under "Problem", take the
actions in the right column. If not, proceed to the next step.
TROUBLESHOOTING
Table 3-9. Remedies for Fatal Error
Step Problem
1 The printer is powered
on and the CR unit
leaves its home
position and then
collides with the right/
left frame. After that, a
fatal error is displayed.
2 Ditto
3 When the Printer is
turned on, the CR
moves a little and you
hear the ASF Hopper
moving.
After that, a fatal error
is displayed.
Overview
Check & Actions
Check the linear encoder board visually for the following:
• Is the linear encoder board properly installed to the
carriage? If not, install it properly.
• Is the encoder FFC connected to the connector? If not,
connect it properly.
Linear Encoder Board
• Check that the linear encoder belt passes through the
slot in the sensor.
• Check that the sensor is free from dust and paper
debris.
• Referring to the figure below, check that the ASF
sensor is attached to the correct position.
• Check that both connectors 1 and 2 are securely
connected.
ASF Sensor
ASF Frame (Left)
Connector 1
Connector 2
(CN6)
Revision B
Control
Board
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