Epson Stylus Color C70, Service Manual

Page: 72 / 216

EPSON Stylus COLOR C70/C80 Revision A
Troubleshooting Overview 72
4 Has the IC chip
(EEPROM) that is
mounted to the CSIC
become detached or is it
becoming detached? If the CSIC chip is even slightly dislocated, the electrodes
will not come into correct contact with the carriage
electrodes and the printer will not recognize the cartridge.
NOTE: If an ink cartridge with no CSIC chip is installed,
not only will the ink cartridge fail to be recognized,
but it will also damage the carriage electrodes.
5 Are the contact
electrodes of the
carriage CSIC chip
broken or bent?
Table 3-7. This section describes the procedures for solving the problem
when an ink out (cartridge out) error is displayed even though
a brand-new ink cartridge has been installed.
Step Check Point Remedy
Correct Situation
Incorrect Situation
Dislocated IC Chip
Electrodes
6 Is the FFC disconnected
from connector CN1 on
the circuit board
underneath the carriage,
or does it look to be
okay but when you try
to push it in does it feel
as if it is slightly loose?
CN1 is the connector that handles the input and
output of signals between the main board and the
mechanism. It inputs the various encoder signals to
the main board from the mechanism, and outputs
head drive signals from the main board.
Table 3-7. This section describes the procedures for solving the problem
when an ink out (cartridge out) error is displayed even though
a brand-new ink cartridge has been installed.
Step Check Point Remedy
Junction Board
CN 1