SF-7300
SF-7350
5. Wgnetlc clutch and motom
mrevietiorr
Name
TyP
Function
MFC
MirrorFeed Clutch
Magneticclutch
Mirrorbase feed clutch.ON todrivethe mirrorbase,
MRC
MirrorReturnClutch
Magneticclutch
Mirrorbase returnclutch.ON to returnthe mirrorbase.
MM
MarnMotor
InductionAC motor
Dmm, mirrorbase, and rdkrs dtiing motor
CFM
CootiW Fan Motor
InductionAC motor
Cooliq f~ dtie motor
TM
Toner Motor
Synchronow motor
Toner SWPWmotw
LM (“)
LerrsMotor
Ste~i~ motor Lens drivingmotor(SF-7350 only)
6. PWB :
DL
Name
Main PWB =
HV. T. PWB (assy)
CD PWB
Operation PWB
BL Pm
CLC PWB
DL PWB
DC SU~~ PWB
AES PWB
H..T.PW~(assy) / AES PWB ~
PWB
7
-.
A -, .,-
Description
The nudsus ofthe deotroniccontrolsystemwhioh=trob circuitsand
loads.A singlechipmicrwmputer w& intmal ROM and RAM chips
is usedforthe maincontroller.
Conaistsof highvoftagetransformercircuits,trarrsfomr drivecircuits,
and corrtrdcircuks.
If MC orTC biaso~ut k outof limits,adjustmentis r~uired usingthe
outputadjustingpotprovidedon the bead.
Consistsof cassettesizedetect switchesand a paper feed sgnd
interfacecircuit.
Consistsof a displaycircuitand ke~oa~ sense circuit.
Used to optical~dischargethe drum.
Used to controfcopylamp intensity.As the ME, AE adjustingpotsand
automaticexposurecontrolswfichare locatedonthe board,l.ght
intensitycanbe adjusted.
Used to optical~dischargerestiual chargeon thedmm.
Used to create W supp~ by rectifyingthe sourcepower.
Used to sensecontra< of a document.
4-4
SF73@ interchangeVS.SF-73OO
Not hterchangeaMe.
Not interchangea~e.
Not interchangeable.
Interchangeable.
Interchanges@.
Interchangeebk.
Irrtarchangesbb.
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