Pcb10 - Ricoh FT5535 Service Manual

3. ELECTRICAL COMPONENT DESCRIPTION
Symbol Name
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 Auto
FT5535/4527/4522
Function
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
mode is available.
7-4
Index No.
5
6
10
1
2
9
11
12
13
14
15
16
17
3
8
7
4
4
FSM