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17. Place four (4) O-ring seals in the replacement head (see Figure 4-90 on the
previous page).
18. Position the head in the print block, making sure that the location pins
are in place.
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19. Tighten the upper and lower screws that secure the print head in the print
block (see Figure 4-89 on the previous page).
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20. Insert the driver card into its socket, and secure the card.
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21. Lower the protective cover and tighten the screws to secure it.
