Abstract: A method and apparatus for aligning a target within a field of view of an optical scanner is provided. In an optical scanner having a field of view, apparatus for indicating whether a target is aligned within said field of view includes a microprocessor and an alignment indicator. The alignment indicator is electrically connected to the microprocessor and includes, for example, a light emitting diode. The microprocessor defines a first zone and a second zone within the field of view and determines whether the target is within the field of view. If the target is within the field of view, the microprocessor identifies a target alignment point on the target. The microprocessor determines whether the target alignment point is within either the first zone or the second zone and sends a signal to the alignment indicator. In response, the alignment indicator provides an indication indicating whether the target alignment point is located within the first zone, the second zone, or neither.

Abstract: A method and apparatus for aligning a target within a field of view of an optical scanner is provided. In an optical scanner having a field of view, apparatus for indicating whether a target is aligned within said field of view includes a microprocessor and an alignment indicator. The alignment indicator is electrically connected to the microprocessor and includes, for example, a light emitting diode. The microprocessor defines a first zone and a second zone within the field of view and determines whether the target is within the field of view. If the target is within the field of view, the microprocessor identifies a target alignment point on the target. The microprocessor determines whether the target alignment point is within either the first zone or the second zone and sends a signal to the alignment indicator. In response, the alignment indicator provides an indication indicating whether the target alignment point is located within the first zone, the second zone, or neither.

Abstract: A pump powered by a canned motor has a removable stator cartridge. One end of a generally hollow pressure housing is secured to a pump housing. An annular stator cartridge is removably secured in the pressure housing. An annular gap between the inner surface of the pressure housing and the outer surface of the stator cartridge defines a flow path for cooling fluid to permit the stator cartridge to be surrounded by cooling fluid. A rotor is operatively positioned inside the stator cartridge to form an electric motor when the stator cartridge is energized. The output shaft of the rotor is connected to an impeller in the pump housing. The rotor is rotatably supported by bearings. An end cap is removably secured to the other end of the pressure housing. Removal of the end cap permits access to and removal of the stator cartridge without requiting removal of the motor from the pump housing.