Audio Concepts Brand's Products

45641001TH Rev.1

v /

Oki Data CONFIDENTIAL

2. General Precautions at Service

- Be sure to turn the power OFF and unplug the power cable during service (except for the

service should be done with the power turned ON).

- Unplug the power cable and clean the area around the prongs of the plug and socket outlet

once a year or more. A ﬁre may occur when dust lies on this area.

- Whenthepartsaredisassembled,reassemblyisthereverse ofdisassemblyunless

otherwise noted in this manual or other related documents. Be careful not to install small

partssuchasscrews,washers,pins,E-rings,starwashers,harnessesinthewrongplaces.

- Basically,theequipmentshouldnotbeoperatedwithanypartsremovedordisassembled.

- The PC board must be stored in an anti-electrostatic bag and handled carefully using a

antistatic wrist strap since the ICs on it may be damaged due to static electricity.

Caution: Beforeusingtheantistaticwriststrap,unplugthepowercableoftheequipment

andmakesurethattherearenochargedobjectswhicharenotinsulatedinthe

vicinity.

- Be sure not to touch high-temperature sections such as the fuser unit and areas around

them.

- Besurenottotouchhigh-voltagesectionssuchasthechargers,transferbelt,developer,

high-voltagetransformer,andpowersupplyunit.Especially,theboardofthese

componentsshouldnotbetouchedsincetheelectricchargemayremaininthecapacitors,

etc. on them even after the power is turned OFF.

- Makesurethattheequipmentwillnotoperatebeforetouchingpotentiallydangerousplaces

(e.g.rotating/operatingsectionssuchasgears,beltspulleys,andfans).

- Be careful when removing the covers since there might be the parts with very sharp edges

underneath.

- WhenservicingtheequipmentwiththepowerturnedON,besurenottotouchlivesections

and rotating/operating sections.

- Usedesignatedjigsandtools.

- Userecommendedmeasuringinstrumentsorequivalents.

- Return the equipment to the original state and checkthe operation when the service is

ﬁnished.

- Be very careful to treat the touch panel gently and never hit it. Breaking the surface could

cause malfunctions.

3. Important Service Parts for Safety

- The door switch,fuse, thermostat, thermofuse,thermistor,batteries,IC-RAMsincluding

lithium batteries, etc. are particularly important for safety. Be sure to handle/install them

properly.Ifthesepartsareshort-circuitedandtheirfunctionsbecomeineffective,theymay

result in fatal accidents such as a burnout. Avoid short-circuiting and do not use parts not

recommendedbyOKIDATACorporation.