Printer Service Manual

4026-0XX
Diagnostic Information 2-3
Controller Card Failure Replace Controller board
Optional Memory Error Replace the optional memory SIMM.
If this does not correct the problem,
replace the controller board.
Fan Failure Error Go to the “Fan Service Check” on
page 2-17.
ROM Checksum Error Replace the ROM SIMM. If this does
not correct the problem, replace the
controller board.
Base Memory Error Replace Controller board
Blinking Operator Panel LED Action