5 Functional Overview Contents Sequence of Operation - - - - - - - - - - - - - - - - - - 68 Timing Diagram - - - - - - - - - - - - - - - - - - - - - 70 Printer Functionality and Operation - - - - - - - - - - - - 71 Engine Control System - - - - - - - - - - - - - - - - - - 77 Paper Pick and Feed System - - - - - - - - - - - - - - - 87 C4170-90959 Contents 67