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Lexmark C78x - Appendix A-Service Tips; Identifying the Printheads

Lexmark C78x
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Appendix A—Service tips A-1
5061
Appendix A—Service tips A
Identifying the printheads
Warning: Do not loosen or remove all printheads at the same time. If all printheads are loosened or removed,
your reference to readjust will be lost.
Notes:
Whenever a printhead is removed, it is necessary to perform the “Mechanical alignment” on page 4-73,
the “Black printhead electronic alignment” on page 4-78 (if necessary), and the “Color printhead
electronic alignment” on page 4-79.
The front cover assembly must be installed and closed before any printhead alignment can be performed.
It is not necessary to remove the cover to access the printheads.
If there is a protective lens cover on the new printhead, it must be removed before installing the
replacement printhead.

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