Service manual

EPSON Stylus Photo R340/350 Revision A
Troubleshooting Troubleshooting 29
• Occurrence
Timing:
During
operation
• CR Position:
---
The CDR Tray center detection
sequence is canceled and the CDR Tray
is ejected.
CDR Tray 1. Check the white marking on the CDR Tray for any paper
dust or contamination.
1. Clean the white marking area on the CDR
Tray.
PW Sensor 1. Check the PW Sensor for paper dust or ink stain. 1. Clean the surface of the PW Sensor.
2. Check if the PW Sensor FFC is correctly connected to the
connectors on the PW Sensor and the CR Encoder Board.
2. Correctly connect the PW Sensor FFC to the
connectors on the PW Sensor and the CR
Encoder Board.
3. Check the PW Sensor FFC for any damage. 3. Replace the PW Sensor FFC with a new one.
4. Check the PW Sensor for any damage. 4. Replace the PW Sensor with a new one.
Main Board 1. Check if any of the elements on the Main Board is
damaged.
1. Replace the Main Board with a new one.
Table 1-11. Troubleshooting of CD/DVD Tray Errors based on Observed Symptom (continued)
Occurrence
Timing
CR Position
Symptoms Failed Part Check Point Remedies
White Marking
PW Sensor
CR Encoder Board
PW Sensor FFC
Connector