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Chapter 4 Belt, Paper Feed Timing, Adjustment
Belt, Paper Feed Timing, Adjustment
1. Prepare the printer for maintenance (page 132).
2. Cabinet Models: Remove the paper path (page 199).
Pedestal Models: Remove the top cover assembly (page 179).
3. Cabinet Models: Loosen four screws and remove the barrier shield. (See
page 230, items 3, 4 and 9.)
Pedestal Models: Loosen the four screws securing the paper guide and
barrier shield and remove both. (See page 232, items 3, 4, and 5.)
4. Remove the timing belt cover (1) by squeezing the front and back to
release the plastic tabs from the slots in the side plate.
5. Loosen (do not remove) the two 5/16 inch motor mount bolts (2).
6. Using the straight end of a force gauge, apply 15 pounds (66.7 N) of
pressure to the paper feed drive motor (3). Use the splined shaft (4) to
steady the gauge.
7. Reduce tension to 12 pounds (53.4 N) and torque the 5/16 inch paper
feed motor mount bolts (2) to 18 ± 2 inch-pounds (2.03 ±
0.23 N•m).
NOTE: Belt tension is correct if the belt deflects 1/8 inch midway between the
pulleys.
8. Snap the timing belt cover (1) into the slots in the side plate.
9. Cabinet Models: Install the barrier shield and tighten the four screws.
(See page 230, items 3, 4 and 9.)
Pedestal Models: Install the barrier shield and paper guide and tighten the
four screws. (See page 232, items 3, 4, and 5.)
10. Cabinet Models: Install the paper path (page 199).
Pedestal Models: Install the top cover assembly (page 179).
11. Return the printer to normal operation (page 133).
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