SERVICE MANUAL HP C2858A/C2859A DRAFTING PLOTTERS SERIAL NUMBERS This manual applies directly to HP C2858A and C2859A plotters with serial numbers prefixed USA. For additional information about serial numbers, see SERIAL NUMBER INFORMATION in Chapter 1. HEWLETT-PACKARD COMPANY 1993 16399 W. BERNARDO DRIVE SAN DIEGO, CALIFORNIA 92127-1899 C2858-90000 Printed: March 1993