Ricoh B089 Service Manual page 484

ELECTRICAL COMPONENT DESCRIPTION
1.4 ELECTRICAL COMPONENT DESCRIPTION
Symbol
Motors
M1 DF Feed
M2 DF Transport
Sensors
S1 DF Position
S2 Registration
S3 Feed Cover Open
Sensor
S4 Original Width
Sensor Board
S5 Original Length - 1
S6 Original Length - 2
S7 Original Set
S8 Original Exit
S9 Original Trailing
Edge
S10 Original Reverse
Sensor
Solenoids
SOL1 DF Pick-up
SOL2 Stamp
SOL3 Junction Gate
Clutches
MC1 DF Feed
PCBs
PCB1 DF Drive
B386
Name
Drives the feed belt, separation, pick-up, and
reverse table rollers.
Drives the transport and exit rollers
Detects when the DF is lifted.
Detects the leading edge of the original to turn
off the DF feed and transport motors, detects
the original exposure timing, and checks for
original misfeeds.
Detects when the feed-in cover is opened.
Detects the original width.
Detects the original length.
Detects the original length.
Detects if an original is on the feed table.
Detects the leading edge of the original to turn
on the junction gate solenoid and checks for
original misfeeds.
Detects the trailing edge of the original to turn
off the transport and feed motor and junction
gate solenoid.
In single-sided mode, used to detect original
misfeeds.
Detects the trailing edge of the last original to
stop copy paper feed and to turn off the
transport motor, and checks for original
misfeeds.
Detects when the original is fed from the
reverse area during duplex scanning.
Controls the up-down movement of the original
table.
Energizes the stamper to mark the original.
Opens and closes the junction gate.
Transfers transport motor drive to the pick-up
roller and feed belt.
Interfaces the sensor signals with the copier,
and transfers the magnetic clutch, solenoid and
motor drive signals from the copier.
Function
10-4
Index
No.
10
11
9
17
2
3
4
6
15
12
14
16
5
13
7
1
8
SM