Epson RX580 - Stylus Photo Color Inkjet, Service Manual

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EPSON Stylus PHOTO RX560/580/590 Revision A
Troubleshooting Troubleshooting When There is No Error Display 38
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Carriage operates but error indicated
†
LED does not light up
†
Picture cannot be read clearly
3.3.6 Troubleshooting for Motors and Sensors
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Motor
†
Sensor
Note : Refer to “2.1.2 Motors and Sensors ” (p.17) for the locations of the motors and sensors.
Table 3-19. Carriage operates but error indicated
Cause Check Point Yes/No Remedy
Upper case of scanner is
removed. Upper case of scanner is
removed.?
Yes Install the upper case.
Defective main board --- --- Replace the main board
Defective CR HP sensor
board
--- ---
Replace the CR HP sensor
board.
Table 3-20. LED does not light up
Cause Check Point Yes/No Remedy
Connector on the Main
Board is disconnected Connector CN19 on main
board is disconnected?
Yes
Connect the connector
CN19 on the main board.
Defective CIS Unit
Does the lamp light up when
the CIS Unit is replaced?
Yes Replace the CIS Unit.
Defective main board --- --- Replace the main board
Table 3-21. Picture cannot be read clearly
Cause Check Point Yes/No Remedy
Soiled document table
Is the document table (glass)
free from dirt and wiping
mark?
No Clean the document table.
Defective CIS Unit --- --- Replace the CIS Unit.
Defective main board --- --- Replace the main board
Table 3-22. Motor Resistance and Check Points
Motor Name Location Check Point Resistance
CR motor CN14 (White) Pin 1 & 2 22.7
Ω
± 10%
PF motor CN13 (Black) Pin 1 & 2 21.2
Ω
± 10%
CR motor (Scanner Unit) CN17 (White) Pin 1 & 2
Table 3-23. Sensor Check
Sensor Name Location Signal Level Sensor Status
PE sensor
(3.3V DC ±5% )
CN6 Pin 1&3
2.4V or over Paper absent
Less than 0.4V Paper present
APG sensor
(3.3V DC ±5% )
CN7 Pin 1&3
2.4V or over PG position
Less than 0.4V Out of PG position
CD-R Guide sensor
(3.3V DC ±5% )
CN11 Pin 1&2
Pin 3&4
Open: 2.4V or over CD-R Tray present
Close: Less than 0.4V CD-R Tray absent
CD-R Tray sensor
(3.3V DC ±5% )
Open: 2.4V or over CD-R Guide down
Close: Less than 0.4V CD-R Guide up