Ricoh Aficio 401, Service Manual

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Symbol Index
No.
Description Note
SW5 52 LCT Cover Cuts the dc power line of the LCT lift motor.
SW6 27 Main Supplies power to the copier.
SW7 26
Front Cover Safety Cuts the dc power line and detects whether
the front cover is open or not.
Magnetic Clutches
CL1 61
Toner Supply Turns the toner supply roller to supply toner
to the development unit.
✽
CL2 Not used
CL3 76
Transfer Belt Lift Controls the touch and release movement of
the transfer belt unit.
CL4 58 Registration Drives the registration rollers.
CL5 63
By-pass Feed Starts paper feed from the by-pass feed
table or LCT.
CL6 71 Relay Drives the relay rollers.
CL7 72 Paper Feed Starts paper feed from the paper tray.
CL8 62 By-pass Relay Drives the by-pass relay rollers.
Solenoids
SOL1 67
By-pass Pick-up Drops the pick-up roller to the by-pass paper
feed position. When paper is fed from the
LCT, this solenoid assists SOL3.
SOL2 77
Junction Gate Moves the junction gate to direct copies to
the duplex tray or to the paper exit.
SOL3 64
LCT Pick-up Drops the pick-up roller all the way down to
the LCT paper feed position from the
by-pass paper feed position.
SOL4 69
Pick-up Controls the up/down movement of the
pick-up roller in the paper tray.
SOL5 70
Separation Controls the up/down movement of the
separation roller at the paper tray feed
station.
Lamps
L1 3
Exposure Applies high intensity light to the original for
exposure.
L2 43 Fusing Provides heat to the hot roller.
L3 88
Quenching Neutralizes any charge remaining on the
drum surface after cleaning.
Heaters
H1 21
Drum (option) Turns on when the main switch is off to
prevent moisture from forming around the
drum.
H2 5
Optics
Anti-condensation
(option) Turns on when the main switch is off to
prevent moisture from forming on the optics.
H3 22
Tray
(option) Turns on when the main switch is off to keep
paper dry in the paper tray.
ELECTRICAL COMPONENT DESCRIPTIONS 25 April 1997
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