Service Manual
6-19
Troubleshooting
6
Error codes and messages
Engine board LEDs
Engine error codes can be read either at the front panel or at the print engine
control board. The error code is displayed as a numeric value on the front panel.
A log of error codes is viewable in the menu item Service Support — Fault
History
(fault 1 is the most recent). If, for any reason, the front panel is not
operating, you can interpret the current error code from a series of LEDs on the
engine control board.
Print engine error codes
Table 6-2 Engine board LEDs
LED
Numeric value
Example
Indicated error
1
1
●
(lit)
1
2
2
❍
(not lit)
0
3
4
❍
0
4
8
●
8
5
16
●
16
6
32
❍
0 Total = 25. Error code 25
7
none
❊
Leds 7 and 8 are health LEDs that
sequentially flash to indicated to
proper operation of the engine
board CPU
8
none
❊
Table 6-3 Engine error codes reported to the front panel
Code
Descriptions
Possible causes
1
unused
2
Bus trap error
Engine control board CPU. Replace the engine
control board.
3
Address trap error
Engine control board CPU. Replace the engine
control board.
4
Illegal instruction
Engine control board CPU. Replace the engine
control board.
5
Divide by zero
Engine control board CPU. Replace the engine
control board.
6
CPU failure
Engine control board CPU. Replace the engine
control board.
7 to 9
unused
Engine control board CPU. Replace the engine
control board.
10
Line 1010 Emulator (opcode
error)
Engine control board CPU. Replace the engine
control board.