6–20
6400 Line Matrix Printers Setup Guide, Cabinet and Pedestal Models
Fault
Message SolutionExplanation
Operator
Correct-
able?
102 LOWER DRIVER SHORT
No Circuit(s) on the hammer
bank or in the hammer bank
power cable shorted to
ground.
Contact your IBM service
representative.
107 HAMMER COIL HOT
No One or more hammer coils
are overheating.
Stop printing and allow the
printer to cool for five minutes.
If the fault reoccurs, contact
your IBM service representative.
110 STACK OVERFLOW
SEE USER’S GUIDE
No Fatal firmware error on the
controller board.
Contact your IBM service
representative.
111 STACK UNDERFLOW
SEE USER’S GUIDE
No Fatal firmware error on the
controller board.
Contact your IBM service
representative.
112 UNDEFINED OPCODE
SEE USER’S GUIDE
No Fatal firmware error on the
controller board.
Contact your IBM service
representative.
113 PROTECTED INSTRUCTION
SEE USER’S GUIDE
No Fatal firmware error on the
controller board.
Contact your IBM service
representative.
114 ILLEGAL OPERAND ACCESS
SEE USER’S GUIDE
No Fatal firmware error on the
controller board.
Contact your IBM service
representative.
115 ILLEGAL INSTRUCTION ACCESS
SEE USER’S GUIDE
No Fatal firmware error on the
controller board.
Contact your IBM service
representative.
116 ILLEGAL EXTERNAL BUS ACCESS
SEE USER’S GUIDE
No Fatal firmware error on the
controller board.
Contact your IBM service
representative.
117 A TO D OVERRUN
SEE USER’S GUIDE
No Fatal firmware error on the
controller board.
Contact your IBM service
representative.
118 UNDEFINED INTERRUPT
SEE USER’S GUIDE
No Fatal firmware error on the
controller board.
Contact your IBM service
representative.
119 TCB CORRUPTED
SEE USER’S GUIDE
No Fatal firmware error on the
controller board.
Contact your IBM service
representative.
120 ACCESS NULL POINTER
SEE USER’S GUIDE
No Fatal firmware error on the
controller board.
Contact your IBM service
representative.