Electrical Component Description - Ricoh A156 Service Manual

3. ELECTRICAL COMPONENT DESCRIPTION

Symbol
Motors
M1 Feed-in
M2 Belt Drive
M3 Feed-out
Sensors
S1 Original Set
S2 Feed-in Cover Open
S3 Feed-out Cover Open
S4 Feed-out
S5 APS Start
S6 DF Position
S7 Original Width-1
S8 Original Width-2
S9 Original Width-3
S10 Registration
Solenoids
SOL1 Stopper
SOL2 Inverter
PCB
PCB1 DF Main Board
Indicators (Lamps)
L1 Ready
L2
A156/A160/A162
Name
Drives the feed-in system (pick-up, feed
and pull-out rollers, separation belt)
Drives the transport belt
Drives the feed-out and the inverter
system
Detects whether originals have been
placed on the original table
Informs whether the feed-in cover is open
or not
Informs whether the feed-out cover is
open or not
Checks for original misfeeds and
determines original stop timing when in
auto-reverse mode
Informs the CPU that it is time to detect
the original size (in platen mode)
Informs the CPU whether the DF is in the
up or down position
Detects the width of the original
Detects the width of the original
Detects the width of the original
Determines original stop timing and
measures the length of the original
Lifts the original stopper and lowers the
feed-in lever to feed the set of originals to
the feed roller
Energizes to invert the original when
copying two-sided originals
Controls all DF functions
Informs the operator that the DF is in the
down position.
Informs the operator that the auto feed
Auto
mode is available.
Function
3-4
Index No.
5
6
10
1
2
9
11
12
13
14
15
16
17
3
8
7
4
4
STM