Simultaneous zero verification for motors in a printing press

A method for determining accuracy of an actual position of a plurality of independent motors in a printing press comprising the steps of:

• commanding each of the plurality of motors in the printing press via a controller to move to a desired initial position;
• comparing an actual position of each motor to the desired initial position of each motor via an operator visually inspecting a position marker moved by the motor and a reference marker, the position marker being on a press component driven by the motor;
• determining if the actual position of each motor is within a predetermined tolerance of the desired initial position;
• and
• resetting any motor outside the predetermined tolerance to be within the predetermined tolerance.

A method for determining accuracy of an actual position of a plurality of independent motors in a printing press comprising the steps of:

• commanding each of the plurality of motors in the printing press via a controller to move to a desired initial position;
• comparing an actual position of each motor to the desired initial position of each motor by imaging the actual position of the motor with a camera;
• determining if the actual position of each motor is within a predetermined tolerance of the desired initial position;
• and
• resetting any motor outside the predetermined tolerance to be within the predetermined tolerance.

A printing press comprising:

• a plurality of printing press components;
• a plurality of motors, each motor driving at least one of the printing press components, the plurality of motors each having a desired initial position including an electrical component and a mechanical component;
• a controller, the controller commanding each of the plurality of motors to move to the desired initial position based on the electrical component of the desired initial position of each motor;
• and
• a position detector for determining an actual position of each motor with respect to the mechanical component of the desired initial position of each motor after each motor is set to the electrical component of the desired initial position.