Datasheet

44895L Rev. 3 3/15/04 S400/S600 Maintenance Manual Page 4-49
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1. Turn printer Off (O), and remove the AC power cord and the printer data cable.
2. Remove media and ribbon.
3. Remove the main door and rear cover.
4. Refer to Figure 4-31 on page 4-39. Disconnect the wiring harness
from J11 on the main logic board.
5. Refer to Figure 4-42 on page 4-50. Slide out the upper media guide
assembly.
6. Locate the two mounting screws securing the media sensor assembly to the main
frame.
7. Using a long-reach magnetic tip screwdriver, remove the two mounting screws.
8. Remove the media sensor assembly.
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1. Remove the wiring harness from W1 on the media sensor board and connect it to
W1 on the replacement board.
2. Install the media sensor assembly on to the main frame, ensuring the wiring
harness attached to W1 on the media sensor board is threaded through the cutout
in the main frame.
3. Using a long-reach magnetic tip screwdriver, carefully reinstall the two mounting
screws.
4. Refer to Figure 4-31 on page 4-39. Reconnect the wiring harness from the media
sensor board to J11 on the main logic board.
5. Refer to Figure 4-42 on page 4-50. Reinstall the upper media guide assembly.
6. Reinstall the media and ribbon.
7. Reinstall the main door and rear cover.
8. Reconnect the AC power cord and data cable.
9. Turn the printer On (l), and recalibrate the media. Verify proper printer operation.
Caution:
Observe proper electrostatic safety precautions when removing, handling, and replacing
printed circuit boards.