This document is a maintenance manual published in June 2004, with version number 842DA111 version 1. The manual provides maintenance guidelines for two products, KM-1650 and KM-2050, including instructions for battery replacement, bipolar/neutral development, etc. The manual also includes safety warnings and precautions, and recommends that maintenance personnel read it carefully. Various symbols are used in the manual to represent different warning information, including danger, warning, and caution. The manual also provides installation precautions, such as using the specified voltage power supply, proper grounding, avoiding installation in damp or dusty places, etc. In addition, it reminds users to comply with the safety warnings and precautions in the copier manual.

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