Epson SQ-B50/2550 Technical Manual page 224

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REV.-A
2. Printer detects an error (buzzer rings).
Read the error
message displayed
on the LCD.
Yes
Replace the SEIMA
board.
Yes
Check the cable
No
connect ion on the
control panel.
No
Yes
Connect the cable
correctly.
Turn off the power
Yes
supply and try to
Replace the SEIPNL
move the carriage
board.
manually.
No
No
Replace the pr inter
mechanism.
Yes
Yes
No
Yes
Replace the power
board.
END
Figure 5-2. Unit Replacement-2
5-4

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