Epson Stylus COLOR 900 Service Manual page 70

EPSON Stylus COLOR 900/900N
Table 3-3. Error Conditions and the Possible Causes (continued)
Error Condition
1. The counter is not showing the actual remaining ink
No I/C or Ink Out
level.
Error
2. Ink cartridge sensor actuator is not working properly.
(Refer to Section
3.1.1.3.)
3. The I/C sensor (micro switch) is not mounted correctly.
The connector (green) is disconnected.
4. The connector (green, 3-pin) on the small board
mounted on the bottom of the carriage is loose. Note
that the green 4-pin connector is irrelevant (it is for the
encoder).
5. The I/C sensor (micro switch) is defective.
6. The value of the ink consumption counter in the
EEPROM is corrupted.
7. Ink cartridge replace command is generated because
an abnormal temperature is detected.
Maintenance The waste ink pads need to be replaced.
Error
After replacing the pads, you must clear the error.
(Refer to Section
3.1.1.4.)
1. The CRHP sensor has come off.
Fatal Error
The connector for the CRHP sensor is disconnected.
(Refer to Section
2. The encoder belt has come off.
3.1.1.5.)
The encoder belt is not placed through the encoder
sensor located at the back of the carriage.
3. The ASF sensor has come off.
The connector for the ASF sensor is disconnected.
4. The coil for the CR motor has burned out.
5. The coil for the PF motor has burned out.
6. The latch in the pump/ASF switching mechanism is
broken or has come loose. (See the figure in Step 6 in
Table 3-14 on page 75.)
Its tension spring has come off.
7. The coil for the pump/ASF motor has burned out.
8. The coil for the ASF solenoid has burned out.
9. The CRHP sensor is defective.
10. The ASF sensor is defective.
Possible Causes
3.1.1.1 Remedies for Paper Out Error
Check for problems in the order listed below to troubleshoot the Paper
Out error when it occurs for either of the following reasons:
T
Paper is set in the ASF hopper but not fed.
T
Paper is fed but not detected by the printer.
NOTE: If you answer "Yes" to a question listed under "Problem," take
the action described to the right under "Solution." If "No,"
proceed to the next step.
Chapter 3 Troubleshooting
67