
77259L Rev. 4 12/16/03 Z4M/Z6M Maintenance Manual Page 4-25
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6. Refer to Figure 4-18. Insert the two mounting screws and washer through the strike
plate and into the print mechanism. Do not tighten at this time, leave them
approximately ½ turn loose.
7. Latch the print mechanism.
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1. Refer to Figure 4-19. Insert the print mechanism gap pin gauges through the holes
provided in the front of the ribbon guide plate.
2. Turn the adjustment screw until a small amount of friction is felt on the outside gap
pin gauge.
3. Snug the two strike plate mounting screws.
4. Verify, with gauge pin, that the inside print mechanism adjustment is correct. A
slight friction should be felt when sliding the inside pin in and out of the inside hole.
If adjustment is fine go to step 9. If not continue with next step.
5. Install the print mechanism adjustment cam with the screw provided in the kit on the
printer frame.
Figure 4-20. Printhead Housing Adjustments
6. Refer to Figure 4-20. Slightly loosen the two hex head and one phillips head
mounting screws securing the print mechanism assembly to the main frame.
7. Place a small crescent wrench on the print mechanism adjustment cam. Turn the
cam counterclockwise and push in and pull out the inside gap pin gauge. Adjust the
cam until a small amount of friction can be felt. Snug the two hex head screws.
8. After aligning the inside pin gauge, verify that the outside adjustment is correct.
Check both pin gauges for equal amount of friction. Tighten the latch plate strike
screws.
Strike Plate
Screws
Print Mechanism
Adjustment Cam
Strike Plate
Cap
Print Mech Gap
Pin Gauges
Adjustment Screw
Ribbon
Guide Plate
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