Specifications

Troubleshooting EPOST (Extended Power-On Self Test) - 8
Stage Failure/EPOST
An EPOST error code can either illuminate solidly (for I/O
controller failures) or flash (for engine failures). The chart on
the next page shows the possible error arrays. The “EPOST
Example” animations demonstrate two of the combinations.
The “Example 1” animation simulates an I/O board error. Notice
how the EPOST announcement sequence (all LEDs on for a second
then all LEDs off for a second) is followed by a paper jam LED that
illuminates solidly for about a second.
The “Example 2” animation simulates a DC controller board
error. Notice how the EPOST announcement sequence is followed
by a paper jam LED that flashes for about a second.
EPOST Example 1
EPOST Example 2