Epson Stylus Color 440

EPSON Stylus COLOR 440, 640, and 740 Chapter 3 Troubleshooting
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3.4 Unit Repair of the Main Board
The name of the main board for each printer is:

St
y
lus COLOR 440: C206 MAIN-B or C255 MAIN

St
y
lus COLOR 640: C256 MAIN

St
y
lus COLOR 740: C257 MAIN
This section describes problems related to the main controller board.
See the table below for s
y
mptoms and likel
y
causes. Then use the
checkpoints to evaluate each component and pinpoint the problem.