Error code SC 548 on Ricoh Aficio 1022 copier. Need to reset m/c

Sc 548- service call - fusing unit not set properly
the fusing unit connector may be loose.
u can reset the error by entering the service mode (careful -do not change anything )
to enter the service mode press [all clear](yellow button) ,[1],[0],[7],[clear](orange button)and keep the button pressed for about 5 sec.
go in copier options , then mode 5, then option 810
and execute(or 1 & ok)

(careful -do not change anything else)

Toner on the terdmisters and thermostats if the buildup is severe the hot roller may be out of place meaning you may need new lower casing.

Paper misfeed message
but their is no paper missed
how can I reset this message

my email: [email protected]