LQP02 Printer

This pocket service guide covers the LQP02 full-character, daisy wheel printer. The document includes:

• Testing and Troubleshooting: Details on the printer's internal self-test routines (logic, printing, and loopback), including procedures for testing with an optional Automatic Sheet Feeder (ASF). It also provides extensive troubleshooting tables to identify and resolve issues related to power, paper feed, ribbon feed, carriage motion, print wheel motion, and hammer firing.
• FRU Removal and Replacement: Step-by-step procedures for replacing field-replaceable units, such as access covers, the power supply PCB, electronic subassemblies, fans, and the motherboard.
• Cleaning and Lubrication: Instructions for lubricating the felt wipers on the carriage guide.
• Options: Installation and maintenance information for the optional Automatic Sheet Feeder (ASF) and Bidirectional Forms Tractor.
• Appendixes: References for fuse locations, related documentation, configuration switch settings, and physical/functional diagrams.