Epson Perfection 3200 Photo, Service Manual

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EPSON Perfection 3200 Photo Revision A
Product Description Process when an error happens 13
1.6 Process when an error happens
*:
When an optional device is connected, this error occurs when the option control command (ESC @) has been used to set the optional device to operation ready
status.
Table 1-6. List of Error Contents and Error Processing
Type Indicator Cause Disposition Remedy Acceptable command
Command error -
Unidentified command or
unidentified command
parameter is detected.
• The scanner ignores the
wrong command or
parameter. (Therefore,
the current setting or the
default value remain
effective.)
• Scanner sends NACK,
and waits for the next
command or parameter.
The error condition is
cleared when the scanner
receives a correct
command.
Interface error
READY LED Off
ERROR LED (red) blinking
(short interval)
• Wrong procedure is
detected in the interface
communication.
• In the case of SCSI, a
transmission is frozen
more than 30 seconds
except BUS FREE
phase.
The lamp goes off and the
scanner stops operation.
• Turn the scanner off and
then back on.
• RST signal in SCSI turns
active.
Nothing
Fatal error
READY LED Off
ERROR LED blinks
• The lamp is broken.
• Power is turned on
before removing the
transportation screw.
• System breakdown.
• 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.
• Send ESC@ code to the
scanner.
• RESET signal in SCSI
turns active.
• Complete BUS DEVICE
RESET message in
SCSI.
ESC F, ESC f, ESC @
Option error -
• Unit cover open
• Paper Empty
The bit 7 of the status byte
is set.
Remove the error condition
ESC F, ESC f, ESC @