Instruction manual

58
Chapter 3 Troubleshooting Procedures
Cycle power. If the message appears, replace the shuttle frame
assembly.
2. Power on the printer. Run a print test.
If the message appears, replace the CMX controller board. Record
the message and return it with defective CMX board.
HAMMER COIL BAD
#, #, #, #, ... etc. Message
1. Hammer coil(s) number #, #, etc. failed the current test at power-up.
Check that the hammer bank cables are connected.
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 CMX controller board. Record the
message and return it with the defective assembly.
HB NOT INSTALLD* Message
1. 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.
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 CMX controller
board and to the shuttle frame assembly.
Connect the hammer bank logic cable to connector J108 on the CMX
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 CMX controller board. Record
the message and return it with defective CMX board.
HMR BANK FAN FLT Message
1. Hammer Bank Fan Fault. Sensors cannot detect current in the fan circuit.
Cycle power. If the message appears, press CLEAR. If the message
does not clear, go to step 2.
2. Power off the printer. Remove the paper path or pedestal top cover.
Disconnect connector P107 from the CMX controller board. Test