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Chapter 4 Troubleshooting Display Messages
CLOSE PLATEN The forms thickness lever is
open.
1. Load paper. Close the forms
thickness lever.
2. Power off the printer. Remove the
paper path or pedestal top cover.
Disconnect connector P107 from the
CMX controller board. Check
continuity of the platen interlock
switch from P107/PLO to the switch.
Replace the switch assembly if it fails
the continuity test. (Refer to Appendix
A, Switch Assembly, Platen
Interlock.)
3. Tighten the screws securing the
platen interlock switch
4. Check and adjust the platen open
belt. Replace the belt if it is damaged.
5. Bottom out the platen open motor
pulley on the motor shaft and torque
the 1/16 inch set screw to 9
± 2 inch-
pounds (1.02
± 0.23 N•m). Tighten
the 7/64 inch setscrew in the platen
shaft pulley, then open and close the
forms thickness lever and check that
the platen pulley setscrew does not
hit the left ribbon guide.
6. Disconnect connector P106 from the
CMX controller board. Check the
resistance of connector P106/PLAT
M. (See the Main Wire Harness Test
Tables in Appendix A.) Replace the
platen open motor if it fails the
resistance test.
7. Run a print test. If the message
appears, replace the CMX controller
board. Record the message and
return it with the defective board.
Table 2. Message List
Message Explanation Solution
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