Ricoh B022, Service Manual, Page: 51 / 878

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ELECTRICAL COMPONENT DESCRIPTIONS
SM 1-13 B022/B027
Symbol Name Function
L2 Main Fusing Lamp Heats the center of the hot roller.
L3 Secondary Fusing Lamp Heats both ends of the hot roller.
L4
Quenching Lamp Neutralizes any charge remaining on the drum
surface after cleaning.
Heaters
H1
Anti-condensation
(Option) Turns on when the main power switch is off to
prevent moisture from forming on the optics.
H2 Tray (Option)
Turns on when the main power switch is off to
prevent moisture from forming around the paper
trays.
Others
TS1 Fusing Thermostats
Opens the fusing lamp circuit if the fusing unit
overheats.
TH1 Fusing Thermistors Detects the temperature of the hot roller.
LSD 1
Laser Synchronization
Detector Detects the laser beam at the start of the main scan.
CO1 Mechanical Counter Keeps track of the total number of prints made.
CO2 Key Counter (Option)
Used for control of authorized use. If this feature is
enabled for copying, copying will be impossible until
it is installed.