The Apple Color LaserWriter 12/600 PS and 12/660 PS are high-quality color laser printers designed for professional use. These devices deliver exceptional color printing at speeds of 12 pages per minute for both color and monochrome output, with a sharp resolution of 600 x 600 dpi. Engineered with a RISC processor and supporting PostScript Level 2, they offer robust performance and compatibility. Their substantial paper handling capabilities, including a 250-sheet input capacity and support for various paper sizes, make them ideal for demanding office environments.

This service manual provides comprehensive guidance for the maintenance and repair of the Apple Color LaserWriter 12/600 PS and 12/660 PS. It covers essential areas such as basic theory of operation, detailed troubleshooting procedures, step-by-step disassembly and reassembly instructions, service bulletins, and exploded views for parts identification. Additionally, the manual includes a finished goods parts list and electrical parts categorized by group, ensuring that owners, technicians, and service professionals have the necessary information to keep these printers operating at peak performance.