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Potential for Radio/Television Interference (U.S.A. only)
The HP DeskJet 420 printer generates and uses radio frequency energy and may cause interference to
radio and television reception. Your printer complies with the specifications in Subpart B of Part 15 of the
Federal Communications Commission rules for a Class B computing device. These specifications provide
reasonable protection against such interference in a residential installation. However, there is no guarantee
that interference will not occur in a particular installation. If the printer does cause interference to radio or
television reception, which can be determined by turning the printer off and on, you can try to eliminate the
interference problem by doing one or more of the following:
■ Re-orient the receiving antenna.
■ Re-orient the position of the printer with respect to the receiver.
■ Move the printer away from the receiver.
■ Plug the printer into a different outlet so that the printer and receiver are on different branch circuits.
To comply with FCC rules Part 15B Class B computing device, use only shielded interface cables.
Compliance Statement (Canada)
This Class B digital apparatus meets all requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de la class B respecte toutes les exigences du Règlement sur le matériel brouilleur
du Canada.
Power adapter statement
The power adapter cannot be repaired. If it is defective it should be discarded or returned to the supplier.
Das Netzteil (einschließlich Kabel und Adapter) können nicht repariert werden. Falls ein Teil des Netzteiles
defekt ist, die ganze Einheit wegwerfen und durch eine neue Einheit ersetzen.
Regulatory Notices