5–4 Replacement Procedures
Belt, Paper Feed Timing (Figure 5–1 )
Removal
1. Prepare the printer for maintenance (page 5–3).
2. Open the printer cover.
3. Remove the paper guide assembly (page 5–42).
4. Remove four screws and the barrier shield. (See Figure 5–35 , page
5–83.)
5. Remove the timing belt cover (1) by squeezing the top and bottom to
release the plastic tabs from the slots in the side plate.
6. Loosen (do not remove) the paper feed motor mount screws (2).
7. Remove the paper feed timing belt (3) by working the side of the belt
onto the lip of the motor pulley (4) and rotating the pulleys until the belt
rolls off.
Installation
1. Install the paper feed timing belt (3) over the splined shaft pulley (5)
and the lip of the motor pulley (4) and rotate the pulleys until the belt
rolls onto the motor pulley.
2. Using the straight end of a force gauge, apply 12 pounds of pressure to
the paper feed drive motor (6). Use the splined shaft (7) to steady the
gauge.
3. Reduce pressure to 9 pounds and torque the paper feed motor mount
screws (2) to 18
± 2 inch–pounds.
4. Snap the timing belt cover (1) into the slots in the side plate.
5. Install the barrier shield and four screws. (See Figure 5–35 .)
6. Install the paper guide assembly (page 5–42).
7. Return the printer to normal operation (page 5–86).
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