A lottery ticket dispenser array includes individual ticket bins defined by a respective housing for receipt of a supply of interconnected lottery tickets. Each bin has an electronic drive mechanism that dispenses the lottery tickets through a slot is defined in a back side of each bin housing. A separation device is adjacent the slot. A calibration slot is defined through a member internal to the housing and is located such that the lottery tickets pass alongside the calibration field in a travel path through the slot. A receiver is disposed internal to the housing opposite to the calibration slot to receive light that passes through the slot. The receiver and the drive mechanism are in communication with a control system. Based on a position of a forward edge of a leading ticket in the calibration slot and an amount of light passing through the slot and incident on the receiver, the control system determines an adjustment to a predefined length of the leading ticket to advance in a subsequent dispense cycle.