EPSON Perfection 1240U Revision A
Product Description Error Indications 15
1.7 Error Indications
COMMAND ERROR
Cause: Undefined command or undefined command
parameter is received.
Disposition: The scanner ignores the wrong command or
parameter,( Maintain at current settings.)
Scanner sends NACK, and waits for the next
command or parameter.
Indicator: Red LED lighting up.
Remedy: Once the correct command is received, the error
condition is cleared.
INTERFACE ERROR
Cause: Detects the wrong action in the communication
procedure.
Disposition: Lamp goes off and scanner stops operating.
Indicator: Red LED High speed blinking
Remedy: Turn power off and then turn it on again.
Plug out and in the USB connector
Acceptable command: None
FATAL ERROR
Cause: Lamp is broken.
Power is turned on or command is received
without removing the transportation lock.
Scanner unit fault.
Disposition: Lamp goes off and the scanner stops operating.
The bit 7 of the status byte is set.
Indicator: Red LED High speed blinking
Remedy: ( After cause is remove )
Switch off the power and turn it on again.
Send initialization command (ESC @).
Plug out and in the USB connector.
Acceptable command: [ESC F, ESC f, ESC @]
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