NoticesInstallation cautionYour Xerox 4220/MRP And 4230/MRP printers are not customerinstallable. Only a Xerox service representative should install theequipment.SafetyCAUTION: This equipment generates, uses, and can radiate radiofrequency energy, and if not installed and used in accordancewith the installation requirements, may cause interference toradio communications.U.S.A.Your printer has been tested and found to comply with the limitsfor a Class A computing device pursuant to Subpart J of Part 15of FCC rules, which are designed to provide reasonableprotection against such interference when operated in acommercial environment. Operation of this equipment in aresidential area is likely to cause interference. In such cases, theuser at his or her own expense is required to correct theinterference.CanadaThis digital apparatus does not exceed the Class A limits for radionoise emissions from digital apparatus as set out in the radiointerference regulations of the Canadian department ofcommunications.Ce present appareil numerique n’emet pas de bruitsradioelectriques depassant les limites applicables aux appareils deClasse A prescitees dans le reglement sur le brouillageradioelectrique edicte par le ministre des communications duCanada.XEROX MRP FAMILY COAX COMMAND REFERENCE iii