Maintenance
WARNINGS !
!Turn off printer and unplug power cord before attempting any
maintenance procedure.
!Hazardous voltages are present in the 4100 printer. Equipment repair
must be performed only by service-trained personnel who are aware of
the hazards involved.
!Double-Pole/Neutral Fusing. The 4100 printer contains two fuses in the
power receptable. It is possible for only one fuse to blow. If this occurs,
be warned that, even though the POWER indicator is not lit, some printer
electrical circuit may remain active. ALWAYS turn off the printer and
unplug the power cord before checking the cause of the blown fuse(s) and
before replacing the fuse(s).
!Use only the fuses specified. Never use repaired fuses, and never short-
circuit a fuse holder.