Epson Stylus COLOR 760 Service Manual page 61

EPSON Stylus COLOR 760
Table 3-8. Remedies for No I/C and Ink Out Errors (continued)
Step Detail Phenomenon
3 If the I/C is removed If the micro switch is not properly attached, the
and reset into the CR actuators possibly fail to touch the micro switch.
unit, the Ink Out LED Therefore, check that the micro switch is securely
is not turn on and off. attached to the carriage by the hooks.
4 Ditto Check if the connector (green, 3-pin) is disconnected
from the head circuit board.
1. Keeping the left micro switch pressed down, place
5 Ditto
the probes of the tester to the middle and left pins
to check for electrical continuity.
2. Keeping the right micro switch pressed down,
place the probes of the tester to the middle and
right pins to check for electrical continuity.
Troubleshooting
Check & Actions
Overview
Table 3-8. Remedies for No I/C and Ink Out Errors (continued)
Step Detail Phenomenon
6 Is data in the If the address for the ink consumption information in
EEPROM the EEPROM is garbled and the printer shows the Ink
destroyed? Out (Ink End) error constantly, the printer sets the
interface signal "BUSY" to High and stops
communication with any other peripheral devices.
Therefore, it is effective to replace the I/C with a new
one to forcibly overwrite the address with 00H.
Revision C
Check & Actions
61