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Chapter 5 Troubleshooting Other Symptoms
Reverse paper feed:
platen does not open
1. Raise the forms thickness lever and check that the platen opens.
If the platen opens with difficulty, inspect for and remove jams or
obstructions.
2. Check the platen open pulley and the platen pulley for
looseness. 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.
3.
Check and adjust the platen open belt. Replace the belt if it is
damaged.
4.
Check and adjust the platen gap.
5.
Power off the printer. Remove the paper guide assembly.
Disconnect connector P106 from the CMX controller board.
Check the resistance of connector P106/PLAT M. (Refer to the
Main Wire Harness Test Tables on page 291.) Replace the
platen open motor if it fails the resistance test.
6.
Power on the printer. Press Form Feed and View several times
and check that paper moves in both directions. Replace the
CMX controller board if the platen does not open during paper
reverse.
Table 5. General Symptom List
Symptom Corrective Action
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