1-64 Service Manual
4023-001
Paper Entrance Switching Mechanism
The paper entrance switching solenoid (SL1) energizes according to
the selected mode (duplex or single-side), which moves the
entrance of the horizontal transport unit up or down. The entrance of
the horizontal transport unit moves down in duplex printing, and
moves up in single-side printing. A tab interlocked with the paper
entrance switching solenoid (SL1) turns ON/OFF the non-sort tray
positioning sensor (PC2) and the sort bin positioning sensor (PC3),
detecting the position of the entrance.
If the entrance moves up and down when the horizontal transport
unit is not attached to the printer properly, the entrance may be
damaged. To prevent this, a stopper is provided. If the horizontal
transport unit is not attached to the printer properly, this stopper
prevent the gears from engaging. As a result, drive force of the
paper entrance transport motor (M1) in the printer does not transfer
to the entrance.
Paper Transport Mechanism (Horizontal Transport Unit)
This mechanism transports the paper from the horizontal transport
unit to the storage unit. Drive force transfers from the storage unit
transport motor (M1). Make sure that the gear at the exit of this
mechanism engages with the gear at the entrance of the storage
unit.
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