How can i fix my panasonic kx-mb2170 printer displys call service 3 ?

SOURCE: Call Service 3

Press Menu first, then #9000*, next press 550, press Start, wait for printing, unplug the electric cord, wait 10s or more, plug it again, it's done.

SOURCE: advanced hybrid system panasonic kx-t7730

how do i change my voice message on my answering machine??

SOURCE: hi ihave a panasonic kx-mb781 and it say on

Fuser unit cannot heat up. Replace fuser unit.
Refer to CALL SERVICE 3 (P.120).

SOURCE: Call Service 2 Panasonic Error Kx Mb772

Well here I give you the manual with the full list of errors.
Panasonic KB-MBxxx Manual

SOURCE: how can resolve call service 3 problem in panasonic kx mb 1900 printer

i have one panasonic KX-MB1900 all in one printer problum showing call service 3