Epson Stylus Photo 870 Service Manual page 30

EPSON Stylus Photo 870/1270
After identifying the type of error indicated by the control panel lights,
see the following table for a list of possible causes. Then follow the
links in the table for detailed troubleshooting procedures.
Table 3-1. Error Conditions and Possible Causes
Error condition
1. Failure in feeding paper.
Paper out error (see
"Remedies for Paper
2. The connector for the paper end sensor is
Out Errors" on page 26
disconnected.
3. The paper end sensor actuator is acting improperly.
The sensor base is not fixed properly.
4. The paper end sensor is defective.
5. ASF does not move correctly.
1. The paper is longer than specified.
Paper jam error (see
"Remedies for Paper Jam
2. The paper end sensor remains on because it is
Errors"
on page 27)
covered with paper debris or dust.
3. The paper end sensor actuator is not acting properly.
The sensor base is not fixed properly.
4. The paper end sensor is defective.
5. The hopper release lever is not assembled correctly.
1. Make sure the ink cartridges are properly installed.
No I/C or ink out error
(see "Remedies for Low
2. Check the level of remaining ink using the printer
Ink or Ink Out Errors" on
driver software.
page 28)
3. Replace the ink cartridges with new ones. If the
problem continues, the printhead ribbon cables may
be loose.
4. The printhead IC may be defective.
5. The main board may be defective.
Maintenance request The waste ink pads need to be replaced.
page 28)
error (see
Possible causes
Table 3-1. Error Conditions and Possible Causes
Error condition
1. The carriage encoder cable has come loose from the
Fatal error
carriage encoder sensor board.
(see "Remedies for a
The carriage encoder sensor has come loose from the
Fatal Error" on page 28)
carriage assembly.
2. The encoder strip has come off or slipped out of the
encoder, located at the back of the carriage.
3. The ASF sensor has come off.
The connector for the ASF sensor is disconnected.
4. The ASF sensor is defective or does not detect the
ASF home position in any situation.
5. The paper feed encoder sensor is defective or does
not detect the bands on the encoder wheel.
6. The coil of the carriage motor is burned out.
7. The coil of the paper feed motor is burned out.
8. The coil of the ASF/Pump motor is burned out.
9. ASF gear 32 disengaged from combination gear 14,28
in the disengage assembly.
10. The spring came off the locking pin and the hook on
the disengage assembly.
11.Timing belt tension may be loose.
12.The carriage lock lever position does not disengage
correctly.
Chapter 3 Troubleshooting
Possible causes
25