Can unauthorized modifications to the HP Color LaserJet Enterprise M553 affect its compliance or operation?
Yes, any changes or modifications to the printer not expressly approved by HP could void the user's authority to operate the equipment. Additionally, use of a shielded interface cable is required to comply with the Class A limits of Part 15 of FCC rules. (Page 12)
From the official HP Color Laserjet Enterprise M553 manual, page 12
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