Reference Lists; Component Symbols, Functions - Canon LBP-CX Series Service Manual

ii. REFERENCE LISTS - COMPONENTS, LEDs, SIGNALS, PCBs; PCB LAYOUT
A. Component Symbols, Functions
Symbol
Type Code
Function
SW,MS
Switches SW! Power switch
--E3-
SW2 Test switch
MSl
}
MS2
Door switches
~
MS3
}
Drum sensitivity detection
MS4
MSS
}
MS6 Cassette size switches
MS7
MS8 NO CARTRIDGE detection
CB
Circuit breaker
CBl Protects all loads
--e::J-
NF Noise filter
NFl Power line noise filter
-0-
NF2
AC line noise filter
TP Thermoprotector
TPl Protects the fixing heater assembly from
-0-
excessive temperature (245°C)
TH Thermistor
THl
Senses upper fixing roller surface
--E0[g-
temperature
H
Heater
Hl Fixing roller heater (SOOW)
~
Q
Triac
Ql Controls fixing roller heater
4
SQ
Noise suppressor SQl
Eliminates electrical noise (voltage spikes)
-BBB-
from lines to protect Q 1
FM Fan
FMl
Cooling fan
-e-
3-2
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BY CAllDN INC. CANON LBP·CX SERIES REY.2 JULY 1985 PRINTED IN JAPAN (IMPRIME AU JAPON)