LP29 Line Printer

This document serves as the Maintenance Guide for the LP29 Line Printer, providing essential information and procedures for Field Service Engineers to troubleshoot and maintain the printer at the Field Replaceable Unit (FRU) level. It covers the printer's general introduction, detailed specifications, and feature summaries, along with explanations of its controls and indicators. The guide also outlines various configurations, including power supplies and interface printed circuit board settings. Crucially, it provides comprehensive troubleshooting procedures for common hardware problems, including a detailed guide with status displays, probable causes, and remedies, as well as fuse identification and relevant flowcharts. Furthermore, it offers step-by-step instructions for the removal, replacement, and adjustment of all electrical and mechanical assemblies, such as covers, internal mechanisms, circuit modules, and control panels. Appendices list recommended spare parts, field replaceable units, character band part numbers, and procedures for installing character band PROMs.