2.11.10 Replacing the SADF registration gate and entrance gate solenoids
1. Turn off the main switch, and remove the ADF rear
cover (7 plated screws).
CAUTION
The ADF rear cover is made of metal. So, the
cover may touch electric elements on the
boards shorting them out when you remove the
cover. Be sure to turn off the main switch when
you remove the ADF rear cover.
2. Remove the ADF control board.
CAUTION
• Before installing the board, be sure to
connect the three connectors on both the
front and back of the board.
• Be sure not to damage electric elements on
the board.
• Be sure not to cut the harnesses by pulling
the board or rubbing the harnesses with the
edges of any brackets or plates.
• Do not pull the fiber optics cable when you
disconnect it from the ADF control board.
Grasp its connector using pliers and pull it
out. Remove the ADF control board.
3. Remove the solenoid fixing bracket (2 screws).
4. Remove the solenoids from the bracket (2 screws
each) and replace them.
5. Reassemble in the reverse order.
CAUTION
• The lift switch must be turned on and off by
the actuator when the ADF is opened and
closed.
Solenoid position standard
Check the operation of the registration gate and
entrance gate plates by pressing the plungers of each
solenoid manually. Adjust the solenoids’ position if
necessary.
• SADF entrance gate solenoid
When the solenoid is de-energized, the
gate plate projects 4.0 mm or more from
the ADF bottom frame. When it is
energized, the gate plate goes into the
bottom frame.
• SADF registration gate solenoid
When the solenoid is de-energized, the
gate plate goes into the bottom frame.
When it is energized, the gate plate
projects 5.0 to 5.5 mm from the ADF
bottom frame.
Solenoid
fixing
bracket
Entrance gate
solenoid
Registration gate
solenoid
Transport motor
Original feed motor
Registration gate solenoid
Lift switch
Entrance gate solenoid
Actuator
Feeler
Bottom
frame
Registration
gate plate
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