Lexmark M410 - Optra B/W Laser Printer Service Manual page 29

4045-XXX
Error Code
939 Controller -
Engine
Communications
Error
941 Controller
Code CRC
941 Controller
Font CRC
943 Controller
Font Version
944 Controller
Board Failure
945 Controller
Board Failure -
ASIC Failure
946 Controller
Board Failure -
SRAM Failure
947 Engine
Board
953 NVRAM
Failure
954 NVRAM
Failure
960 RAM
Memory Error
Action
The controller board and the engine board cannot
communicate with one another. The controller board,
engine board or interconnect board is defective. Check
each board for correct installation and secure ground. If
no problem is found, replace the FRUs in the following
order:
controller board
engine board
interconnect board
Note: The controller software also can cause a 939 error
code. Contact your next level for software support.
Replace the controller board.
Replace the controller board.
Indicates that the controller code and FONT ROM are
incompatible.
Replace the controller board.
Replace the controller board.
Replace the controller board.
Replace the engine board.
Indicates the NVRAM chip on the engine board has
failed. Replace the engine board.
Indicates the NVRAM experienced a CRC failure.
Replace the engine board.
Indicates a DRAM Memory Error on the controller board.
Replace the controller board.
Diagnostic Information
2-3