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Operator’s Guide
Controller voltage failure. Contact an IBM
service representative.
No ribbon movement. Make sure the
ribbon is not twisted and the forms
thickness lever is set to match thickness
of media being used. If fault reoccurs,
contact an IBM service representative.
Shuttle cover is missing, damaged, or not
correctly installed. Contact an IBM
service representative.
Controller board does not detect ribbon
drive motor. Contact an IBM service
representative.
Hammer driver circuits on the controller
board shorted to ground. Contact an IBM
service representative.
Circuit(s) on the hammer bank or in the
hammer bank power cable shorted to
ground. Contact an IBM service
representative.
One or more hammer coils are
overheating. Stop printing and allow the
printer to cool for five minutes. If the fault
reoccurs, contact an IBM service
representative.
Fatal firmware error on the controller
board. Contact an IBM service
representative.
088 CONTROLLER 23.5V
089 RIBBON STALL
CHECK RIBBON
090 SHUTTLE COVER OPEN
CLOSE SHUTTLE COVER
092 RIBBON DRIVER CIRCUIT
101 UPPER DRIVER SHORT
102 LOWER DRIVER SHORT
107 HAMMER COIL HOT
110 STACK OVERFLOW
SEE USER’S GUIDE
Summary of Contents for 6400 - Model 008 B/W Line-matrix Printer
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