PRECAUTIONS
(1)
Precautlbns
Refer to D: DISASSEMBLY/CLEANING for the Disassembly procedure.
Be sure to unplug the
printer
befcre disassembling and
cleauing.
pczzi&q
1. When unplugging
ccumec
tors on the P.WI3.s themselves, always make
sum
the power is OFF first.
2.
Always unplug conrxctors by holding the connector housing. Pulling on the power cord can lead
to problems with poor contact.
3.Itisrec
canmended
that a body ground not be used when carrying out any trouble-shooting
procedure. Be sure to ground DC lines to a ground test point on the P.W.B.
(2) At Replacement/ Adjustment/ Cleaning
pGiq
l.BesuretohandletheFusingUnitcarefullyastheunitisstillhotforawhileafbertheprinteris
stopped-
;-
2.
Do not disassemble the Imaging Cartridge or the Print Head Unit
t
:
3.UseonlyaPuseoftheindicatedrating.
(3)
During
Operation
A
Caution
1. Keep your hands. clothing, etc. well away from operating or rotating
parts.
2.
Never touch the
temhals
d
electrical parts or high voltage parts.
3.Thisprinbuisusinganinvisiblelaserbeam.Topleventalaserbeamleak.theprintermaLesatri~
runtobesurethecoversarein@tion.
HANDLING THE P.W.B.
Observe
the folIowing precautions when handling a P.W.B. with
ICs.
(1)
During Transportation/ Storage
i:
1. During transport and storage,
P.WB.s
should be kept
incarductive
bags or on mats and not
taken
out
lmkss
absolutely
rEce.ssary.
2.
P.WBs
should be stored in a place where direct sunlight
does
not
strike
them.
3.Don0ttouch1Ctermin&withyourhands.
(2) At Replacement
1. Before removing connectors from a
P.WB..
make sure
the
printer has been ~npluggcd
2. When
P.WB.s
are
taken
out of their conductive bags or off their mats, hold them by
t&sir
edges to
avoid touching
the
term&Is
or the patterned surfaces.
3.BeforeinstallingumnectcrsonaP.WB..makesuretheprinterhasbeenunplugged.
(3)
At Inspection
1. Avoid checking a P.WB. with testers; instead, use
operating
pa.tQ
of
the
printer. mdicatrx
ktrps,
and other means to evaluate operational
umditions.
2.
Be careful not to short-circuit
IC
terminals
when
using metal instruments or screws.
3. If it is necessary to touch elements on
the
P.W.B. with your hand, make
sure
your body is properly
5&d
V