Paxar 611 - Manual (Page 43)

Users Manual - 610/611/612 Printers Care and Maintenance
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6. Carefully unplug the cable from the printhead as shown.
CAUTION
The printhead is sensitive to static electricity, which can
damage the printhead or reduce its life. Ground yourself by
touching some metal, such as the printer's metal base,
before touching the printhead.
7. Carefully plug the cable into the new printhead. The cable connector is keyed,
so you cannot incorrectly connect the cable. However, it is normal to feel some
resistance when correctly connecting the cable.
8. Align the new printhead with the tabs.