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Chapter 3 Troubleshooting Display Messages
HAMMER COIL BAD
#, #, #, #, ... etc.
Hammer coil(s) number #, #,
etc. failed the current test at
power-up. Check that the
hammer bank cables are
connected.
1. Cycle power. If the message
appears, replace the shuttle
frame assembly. Record the
message and return it with the
defective assembly.
2. Power on the printer. If the
message appears, replace
controller board. Record the
message and return it with the
defective assembly.
HB NOT INSTALLD*
Hammer Bank Not Installed.
Self-test routines do not
detect hammer coils at
printer start-up. Power off
the printer. Verify that the
shuttle frame assembly is
installed.
1. Install the shuttle frame
assembly.
2. Remove the paper path or
pedestal top cover. Verify that the
hammer bank logic cable is
connected to connector J108 on
the controller board and to the
shuttle frame assembly.
3. Power on the printer. If the
message appears, replace the
hammer bank logic cable.
4. Power on the printer. If the
message appears, replace the
shuttle frame assembly.
5. Power on the printer. If the
message appears, replace the
controller board. Record the
message and return it with
defective board.
Table 2. Message List
Message Explanation Solution
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