User`s manual

User’s Manual—SNAP™ 700 Printer 49
5.2 Print Head Replacement
When you see voids in the printing, and print quality does not improve, even
after cleaning the heads, it is time to replace the print heads. Follow the
procedures listed below.
1. Turn off the power to the printer.
2. Remove the stock and ink supplies from the printer for easier print head
removal.
WARNING: Before replacing a print head, review the Print
Head Handling Procedure Sheet packaged with each print
head to determine if any procedures have changed.
3. To avoid damaging the print head, wear an anti-static wrist strap (which
must be in contact with the skin and be tight) and anti-static gloves at all
times when handling a print head. Be sure the button on the strap comes
into direct contact with your skin.
4. Before installing the printhead, note of the printhead resistance value written
on the end of the printhead. You will need this value to set the printhead
category as described below.
5. Fasten the clip end of the anti-static wrist strap to a metal portion of the
printer (usually the stacker) to prevent static from your skin from entering
the print station.
Figure 16. Print Head Components
6. Put on your anti-static gloves be for beginning to remove the head from the
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Clip Springs for Print Head release
Print head Cable