HP 2425 - Manual (Page 69)

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2 Wipe off any toner residue and paper dust from the registra-
tion roller area with a soft cloth dampened with water.Then
use a soft dry cloth to wipe off any remaining water.
▲ Caution: When cleaning the registration roller area, be careful
not to touch the transfer charging roller. Finger oil, other
contaminants, or scratches on the roller may reduce print quality.
3 Return the brush and toner cartridge to the printer, then
close the top cover.
4 Connect the interface cables and turn on the printer.
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After about every 350,000 prints, the fixing assembly, the transfer
charging roller and gear assembly, and the feed and retard rollers
should be replaced. See chapter 9 of the
Options guide, the “Install-
ing the Maintenance Kit” section, for details on this kit.
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