Kunming X4220A and X4222A Pantograph Engravers. Manual Kunming Pantograph Engraver Models X4220A and X4222A. Operator's Instruction and Maintenance Manual with Electrical Schematics and some dimensioned Parts Drawings. Available in English or Chinese. Manufacturers: Kunming Models: X4220A X4222A Contents: Operators Manual Maintenance Manual Parts Manual Electrical Diagrams