A SERVICE OF

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Clean the device. See
Clean the device on page 140.
Contact an HP-authorized service or support provider to perform routine device maintenance. See
the support flyer that was included with the device, or see
www.hp.com/support/LJM3027mfp or
www.hp.com/support/LJM3035mfp.
174 Chapter 11 Problem solving ENWW