Epson Perfection4180 Photo, Service Manual

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EPSON Perfection4180 Photo Revision A
PRODUCT DESCRIPTION Error Handling 18
1.7 Error Handling
Table 1-1. Error Definition and Remedy List
Error type Indicator Cause Disposition Remedy
Command error Nothing especially Unidentifed command is detected. • The scanner (interpreter) ignores the wrong
command or parameter. (Therefore, the
current settings or the default value remain
effective.)
• Scanner (interpreter) sends NACK, and
waits next command or parameter.
The error condition is cleared when the scanner
(interpreter) received a correct command.
Fatal error Red LED blinking
(short interval)
The scanner is malfunction due to for example
lamp is or Carridge cannot return home • The lamp goes off and the scanner stops
operation.
• The bit 7 of the status byte is set.
Turn the scanner off and then back on.
Fail to download Firmware