Ricoh SP5 Series Service Manual page 24

June 30, 1998
1.7.2 ADF
Symbol Name
Motors
M1 Pick-up
Feed-in
M2
M3 Transport
M4 Feed-out
M5 Bottom plate
Sensors
APS Start
S1
S2 DF Position
S3 Original Set
Bottom Plate HP Detects whether the bottom plate is in the
S4
Bottom Plate
S5
Position
Pick-up Roller
S6
HP
Entrance
S7
Registration
S8
S9 Original Width 1
S10 Original Width 2
S11 Original Width 3
Exit
S12
Inverter
S13
Feed Cover
S14
Exit Cover
S15
Solenoids
SOL1 Exit Gate
SOL2 Inverter Gate
ELECTRICAL COMPONENT DESCRIPTION
Function
Moves the pick-up roller up and down.
Drives the feed belt, and the separation,
pick-up, and transport rollers.
Drives the transport belt.
Drives the exit and inverter rollers.
Moves the bottom plate up and down.
Informs the CPU when the DF is opened and
closed (for platen mode) so that the original
size sensors in the copier can check the
original size.
Detects whether the DF is lifted or not.
Detects whether an original is on the table.
down position or not.
Detects when the original is at the correct
position for feeding.
Detects whether the pick-up roller is up or
not.
Detects when to restart the pick-up motor to
lift up the pick-up roller, detects when to
change the feed motor direction, detects the
trailing edge of the original to finish checking
the original length, and checks for misfeeds.
Detects the leading edge of the original to
check the original length, detects when to
stop the original on the exposure glass, and
checks for misfeeds.
Detects the original width.
Detects the original width.
Detects the original width.
Detects when to stop the transport belt
motor and checks for misfeeds.
Detects when to turn the inverter gate and
exit gate solenoids off and checks for
misfeeds.
Detects whether the feed cover is open or
not.
Detects whether the exit cover is open or
not.
Opens and closes the exit gate.
Opens and closes the inverter gate.
1-21
Index No.
2
6
7
11
5
9
10
23
17
24
1
22
18
21
20
19
15
14
3
12
13
16