ELECTRICAL COMPONENT DESCRIPTIONS
SM 6-17 B234/B235/B236/D101/D102/D103
Detailed
Descriptions
6.5.2 ADF
Symbol Name Function
Motors
M1 Pick-up Moves the pick-up roller up and down.
M2 Feed-in
Drives the feed belt, and the separation, pick-up, and
transport rollers.
M3 Transport Belt Drives the transport belt.
M4 Feed-out Drives the exit and inverter rollers.
M5 Bottom Plate Moves the bottom plate up and down.
Sensors
S1 APS Start
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.
S2 DF Position Detects whether the DF is lifted or not.
S3 Original Set Detects whether an original is on the table.
S4 Bottom Plate HP
Detects whether the bottom plate is in the down position
or not.
S5 Bottom Plate Position
Detects when the original is at the correct position for
feeding.
S6 Pick-up Roller HP Detects whether the pick-up roller is up or not.
S7 Entrance
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.
S8 Registration
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.
S9 Original Width 1 Detects the original width.
S10 Original Width 2 Detects the original width.
S11 Original Width 3 Detects the original width.
S12 Original Length Detects the original length.
S13 Exit
Detects when to stop the transport belt motor and
checks for misfeeds.
S14 Inverter
Detects when to turn the inverter gate and exit gate
solenoids off and checks for misfeeds.
S15 Feed Cover Detects whether the feed cover is open or not.
S16 Exit Cover Detects whether the exit cover is open or not.
Solenoids
SOL1 Exit Gate Opens and closes the exit gate.
SOL2 Inverter Gate Opens and closes the inverter gate.
Magnetic Clutches
MC1 Feed-in Drives the feed belt, separation roller, and pick-up roller.
PCBs
PCB1 DF Main
Controls the DF and communicates with the main copier
boards.
PCB2 DF Indicator
Indicates whether an original has been placed in the
feeder, and indicates whether SADF mode has been
selected.
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