Diagnostic Led Flash Sequences - Xerox DP N24 System Administrator Manual

Diagnostic LED Flash Sequences

Diagnostic LED
Flash Sequences
Table 6.3

Diagnostic LED flash sequences

Flash Sequence
1 flash — 1 second — 1 flash...etc.
2 flashes — 1 second — 2 flashes...etc.
3 flashes — 1 second — 3 flashes...etc.
4 flashes — 1 second — 4 flashes...etc.
5 flashes — 1 second — 5 flashes...etc.
6 flashes — 1 second — 6 flashes...etc.
6-24 DP N24, N32 and N40 System Administrator Guide
When the printer is powered ON, a sequence of self test diagnostics
are run. Some failures that are detected in these tests are identified
by a flashing sequence indicated on the system controller diagnostic
LED located on the Controller Board at the rear of the printer (see
Figure 1.1 on page 1-6).
Table 6.3 identifies the faults associated with the flash sequences.
Description/Corrective Action
System controller CPU fault.
ACTION: Contact your dealer or Olivetti.
Base RAM fault.
ACTION: Contact your dealer or Olivetti.
ROM fault.
ACTION: Contact your dealer or Olivetti.
System controller to print engine fault.
ACTION: Make sure the controller board is firmly
Resolution enhancement self-test fault.
ACTION: Contact your dealer or Olivetti.
Communications ports internal loopback test fault.
ACTION: Contact your dealer or Olivetti.
seated. If the problem is not resolved, con-
tact your dealer or Olivetti.
Table 6.3 Page 1 of 2