Ricoh B286 Service Manual page 601

NUMBER
Power Packs
PP1 CGB Power Pack
PP2 T&S Power Pack
QL
Quenching Lamp 1 – 3
QL1 - 3 (1: Left, 2: Center, 3:
Right)
Sensors
S1 Cassette End Sensor
S2 Cassette Set Sensor
S3 Exit Cover Sensor
S4 Fusing Exit Sensor
S5 ID Sensor
S6 Original Exit Sensor
SM
NAME
High voltage power supply for the charge
corona wire ©, development bias (B), and
charge corona grid (G).
High voltage power supply for the transfer
corona wire (T) and the separation corona
wire (S) in the T&S (Transfer and Separation)
unit.
This removes remaining electrical charge on
the drum immediately after cleaning.
This sensor is above the paper cassette. It
detects paper end after the last sheet feeds.
This detects when the cassette is set and
locked in its place.
This detects if the exit cover on the rear of the
machine is open or closed.
This sensor is in front of the fusing exit rollers.
It switches on when the leading edge of the
copy leaves the fusing unit.
The machine uses this sensor to control toner
supply, toner near-end, and toner end. There
is no toner density sensor in this machine.
This detects the original when it feeds out of
the scanner.
6-93
Electrical Components
DESCRIPTION
B286/B289