Positioning apparatus for a movable member such as a sheet guide member

A movable member positioning apparatus comprising:

• a movable member reciprocally drivable between a reference position and a predetermined position;
• first counting means for counting an amount by which said movable member is shifted from the reference position while said movable member is in the proximity of said reference position;
• second counting means for counting an amount by which said movable member is shifted from said reference position to said predetermined position;
• control means for storing a count value counted by said first counting means and for controlling drive of said movable member toward said reference position on the basis of said stored count value;
• and
• an abutment regulating member for stopping said movable member at said reference position.

A movable member positioning apparatus comprising:

• a movable member reciprocally drivable between a reference position and a predetermined position;
• first counting means for counting an amount by which said movable member is shifted from said reference position while said movable member is in the proximity of said reference position;
• second counting means for counting an amount by which said movable member is shifted from said reference position to said predetermined position;
• and
• control means for storing a count value counted by said first counting means and for controlling drive of said movable member toward said reference position on the basis of said stored count value.