Expression 10000XL Revision A
PRODUCT DESCRIPTION Error Handling 19
1.5 Error Handling
NOTE: Refer to Chapter 3 "Troubleshooting" for details.
Table 1-4. Error Detail and Corrective Action List
Classification Indication Cause Corrective action Recovery
Receivable
command
Command error READY LED lit
ERROR LED lit
An undefined command or undefined
command parameter was received.
Return NACK and wait for the next
command. When a wrong command
parameter was received, ignore that value and
hold the original value.
Receive a correct command to recover
from the error.
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Communication
error
Unsupported (as SCSI is not provided)
Fatal error READY LED flashing
ERROR LED flashing
The lamp is blown.
The main unit is faulty.
The optional equipment is abnormal
or unsupported board was inserted.
Extinguish the lamp and stop operation.
Set Bit 7 of the status bit.
Switch power off and then on again.
Press the RESET switch.
Send the initialization command
(ESC@).
ESC, ESC f
ESC @, FS F
Option error READY LED lit
ERROR LED extinguished
Cover open, paper empty, etc. Set Bit 7 of the status bit. Remove the cause of the error to recover
from the error.
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