Ricoh B286, Руководство по обслуживанию

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Electrical Components
SM 6-95 B286/B289
Det
ails
NUMBER NAME DESCRIPTION
S19
Paper Exit Selection
Sensor
This detects the position of the paper exit
selection lever on the top rear edge of the
machine. This sensor on the SIB board.
S20 Paper Registration Sensor This detects paper at the registration rollers.
S21 Paper Set Sensor
This detects when a cut sheet is placed on the
manual feed table (by-pass).
S22 Relay Sensor
This sensor is near the grip rollers, and (1)
Detects the leading edge of every cut sheet,
switches off the cassette paper feed clutch,
and switches on the grip rollers, (2) Detects
paper jams where the paper feeds out of the
paper cassette.
S23 RF Exit Sensor
(1) Detects the leading edge of the paper from
the rolls.
(2) Detects the trailing edge of cut sheets from
the paper cassette and trailing edges of
sheets cut from the paper rolls for paper feed
timing and jam detection.
(3) If this sensor does not detect a leading
edge after feeding from Roll 1 or Roll 2, it also
signals paper end for the roll.
S24 RF Set Sensor
This detects if the spring-loaded lock lever of
the roll feeder drawer is locked.
S25 Roll End Sensor 1
This reflective photosensor above Roll 1
detects the core of the roll (which is black),
after there is no more paper on Roll 1.
S26 Roll End Sensor 2
This reflective photosensor above Roll 2
detects the core of the roll (which is black),
after there is no more paper on Roll 2.