A gear train for an ink jet printer includes an output gear of a motor, a first idle gear meshing with the output gear, a second idle gear rotatable with the first idle gear, and a driven gear which is mounted on a roller shaft so as to be rotatable therewith and which meshes with the second idle gear. The system provides mechanisms for detection of various hardware and software components wherein the individual functionalities and inputoutput data types for each component are automatically recognized and incorporated into a centralized control system that provides live monitoring of the operational status of available components. Instead, the summary view can provide enough information that the user does not need to open the record; the tooltip has the information that they want to know about the item. In exemplary embodiments, the present disclosure provides for convenient, low-cost and effective systems and methods for easily securing andor unsecuring jack assemblieshousings to or from a jack panelfaceplate by utilizing advantageous modular jack assemblies that include a movable locking member, and related assemblies.