EPSON Stylus CX7300/CX7400/DX7400/NX200/TX200 series/SX200 series/Stylus CX8300/CX8400/DX8400/NX400/TX400 series/SX400 series Revision C
TROUBLESHOOTING      Error Indications and Fault Occurrence Causes 66
Confidential
• Power on
• Anywhere
The Scanner Unit does not initialize when 
the power is turned on.
Scanner Carriage 
FFC
1. Check if the Scanner Carriage FFC is connected to CN21 
on the Main Board.
1. Connect the Scanner Carriage FFC to CN21 on 
the Main Board.
2. Check if the Scanner Carriage FFC is damaged. 2. Replace the Scanner Carriage FFC with a new 
one.
Scanner Carriage 
Unit
1. Check if the Scanner Carriage Unit is damaged. 1. Replace the Scanner Carriage Unit with a new 
one.
Table 3-5.  Check point for Fatal error according to each phenomenon
Occurrence
timing
CR position
Detailed phenomenon
Defective
unit/part name
Check point Remedy