Printronix P5000 - Page 44

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Chapter 3 Troubleshooting Display Messages
34 RIBBON STALL
TIMEOUT
In the CT emulation with a
coax interface, the ribbon
has not moved for 10
minutes after CLEAR was
pressed to clear the ribbon
drive fault.
1. Set the forms thickness lever to
match the thickness of the paper
being used, but not too tightly.
2. Inspect the ribbon guides for ink
buildup, which can inhibit ribbon
movement. Clean the printer.
3. Inspect the hammer bank cover/
ribbon mask for bending or
damage. Replace if bent or
damaged.
4. Check the platen gap: if too
small, it can inhibit ribbon
movement. Adjust the platen gap.
5. Power off the printer. Remove the
paper path or pedestal top cover.
Disconnect P106 and P107 from
the controller board. Check the
resistance of LRIB M in P106 and
RRIB M in P107. (Refer to the
Main Wire Harness Test Tables
in Appendix A.) If ribbon motor
resistance is not correct, replace
the motor. If the resistance is
correct, disconnect the ribbon
motor cables from the motors and
check continuity. Replace a cable
if it fails the continuity test.
6. Power on the printer. Run a
diagnostic print test. If the
RIBBON STALL message
appears, replace the controller
board. Record the message and
return it with the defective board.
48V CIRCUIT*
See Manual
The power supply is not
generating a proper 48 Volts,
or the controller board is not
detecting a 48 Volt output
from the power supply
board.
1. Make sure the power supply
board is correctly connected to
the controller board.
2. Power on the printer. If the
message appears, replace the
power supply.
3. Power on the printer. If the
message appears, replace the
controller board. Record the
message and return it with the
defective board.
Table 2. Message List
Message Explanation Solution