LG02 Printer Upgrade

This Field Change Order (FCO LG02-F003) provides instructions for upgrading all models of the LG02 printer. The upgrade addresses several known issues, including: - Vertical pitch (LPI) reverting to default when fonts are selected. - Printer hangs caused by invalid control panel data corruption of NV RAM. - Corruption of summary sheets or flag pages under specific font/width conditions. - Panel lock-ups during power-up with errors or when overriding paper-out errors. - Sensitivity to ESD blanking the control panel. - False paper motion errors. - Printer lock-ups after power restoration during compressed print jobs.

The installation involves replacing the I/O PCB and the Control CPU PCB with updated components to support the LG02 V3.0 firmware, which resolves these identified bugs. The document includes a full list of required tools, parts, and detailed step-by-step removal and installation procedures.