
77259L Rev. 4 12/16/03 Z4M/Z6M Maintenance Manual Page 4-35
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5. Remove the old clamp pad and clamp insulator from the heatsink.
6. Assemble the new heatsink, insulator and foam pad.
7. Peel the protective covering off the foam pad then with the adhesive side up, set it
on a flat surface.
8. Align the clamp insulator holes with the holes in the pad and set the insulator on top.
9. Align the holes and cut-out of the heatsink with the pad and insulator and then
attach it to the pad.
10. Refer to Figure 4-27. Place the power supply heatsink clamp over the power supply
board. Install, but do not tighten, the three screws securing the power supply
heatsink clamp to the printer.
11. Evenly snug the three screws securing the heatsink clamp.
12. Tighten all other mounting screws.
13. Refer to Figure 4-28. Reinstall all the connectors previously removed from the
power supply board. Ensure the connectors are in their proper location.
14. Refer to install the ribbon take-up assembly on 4-49 and reinstall the ribbon take-up
gear.
15. Reinstall the main logic board mounting bracket.
16. Refer to Installing Main Logic Board on page 4-31. Install the main logic board to
the printer.
17. If necessary, reinstall the PCMCIA card, refer to Installing the Memory Card
(PCMCIA) Interface option kit on page 4-53.
18. Verify that the power switch is in the Off (
O) position.
Note • Clamp pad and clamp insulator must be replaced on the heatsink.
Caution • Improper alignment or installation of this insulator pad can cause injury.
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