Sheet conveying apparatus for an image information processor

A sheet conveying apparatus for an image information processor, comprising:

• sheet conveying means disposed on a sheet conveying path provided between a sheet supply opening and a sheet discharge opening for conveying a paper sheet in one direction;
• driving means for driving the sheet conveying unit;
• and
• a plurality of rollers disposed on the sheet conveying path for rotation;
• wherein said driving means comprises:
• a driving motor controlled to change driving modes thereof in forward and reverse directions;
• and
• a driving unit for receiving a driving force of the driving motor, and for selectively performing combined driving of the plurality of roller in mutual operations thereof, according to a sheet conveying process, with a driving force of the driving motor;
• wherein said driving unit includes a power switching device for selectively transferring a rotational force to one of a first power transmission system and a second power transmission system according to the driving mode of the driving motor;
• and
• wherein the power switching device includes:
• first and second power switching gears connected to an output shaft of the driving motor;
• and
• first and second cam gears linearly movable in the rotation shaft directions of the first and second power switching gears so as to move forward and backward in opposite directions relative to each other according to the driving modes of the forward and reverse directions.

A sheet conveying apparatus for an image information processor, comprising:

• sheet conveying means disposed on a sheet conveying path provided between a sheet supply opening and a sheet discharge opening for conveying a paper sheet in one direction;
• driving means for driving the sheet conveying unit;
• and
• a plurality of rollers disposed on the sheet conveying path for rotation;
• wherein said driving means comprises:
• a driving motor controlled to chance driving modes thereof in forward and reverse directions;
• and
• a driving unit for receiving a driving force of the driving motor, and for selectively performing combined driving of the plurality of roller in mutual operations thereof, according to a sheet conveying process, with a driving force of the driving motor;
• wherein said plurality of rollers includes at least two of a sheet registration roller, a sheet delivery roller, a sheet separation roller and a scan roller.

A sheet conveying apparatus for an image information processor, comprising:

• sheet conveying means disposed on a sheet conveying path provided between a sheet supply opening and a sheet discharge opening for conveying a paper sheet in one direction;
• driving means for driving the sheet conveying unit;
• and
• a plurality of rollers disposed on the sheet conveying path for rotation;
• wherein said driving means comprises:
• a driving motor controlled to change driving modes thereof in forward and reverse directions;
• and
• a driving unit for receiving a driving force of the driving motor, and for selectively performing combined driving of the plurality of roller in mutual operations thereof, according to a sheet conveying process, with a driving force of the driving motor;
• wherein said driving unit includes a plurality of driving gears coaxially mounted on respective rotation shafts of the plurality of rollers for connection to a first power transmission system and a second power transmission system.