Ricoh RF3020, Руководство по обслуживанию

Страница: 4 / 77

3. ELECTRICAL COMPONENT DESCRIPTIONS
Symbol Name Function Index No.
Motors
M1 Belt Drive Motor DC servomotor that drives to the transport belt
and feed-in system (pick-up roller, feed roller,
pull-out roller and relay roller). 6
M2 Feed-out Motor DC servomotor that drives the feed-out unit of
the DF. 10
Solenoids
SOL1 Pick-up Solenoid Energizes to press the pick-up lever against
the stack of originals in preparation for original
feed-in.
5
SOL2 Feed-in Solenoid Turns on to engage the feed-in clutch so
rotation is transmitted to the feed roller,
pull-out rollers, and relay rollers.
14
SOL3 Inverter Solenoid Energizes to invert the original when copying
two sided originals. 11
Switches
SW1 Lift Switch Informs the CPU when the DF is lifted and
also serves as the jam reset switch for the DF. 8
SW2 Original Select
Switch Selects thick original mode or thin original
mode. 13
Sensors
S1 Original Set
Sensor Informs copier CPU that originals have been
placed and causes the Insert Original
indicator to go out. 1
S2 Registration
Sensor Sets original stop timing and measures
original length. 2
S3 Original Width
Sensor Determines the width of the originals. 4
S4 Pulse Generator
Sensor Generates pulses used to measure the
original length. 3
S5 Feed-out Sensor Checks for original misfeeds and sets original
stop timing when in auto reverse mode. 12
S6 DF Position Sensor Detects when the document feeder is
positioned about 10 cm above exposure
glass. (A111 copier only)
Printed Circuit Boards
PCB1 DF Main Board Controls all DF functions. 9
PCB2 Indicator Panel
Board Contains operator indicators. 7
Docum
ent
Feeder
1 May 1993 ELECTRICAL COMPONENT DESCRIPTIONS
3