HP 7550A. AND Graphics Plotter. INTERFACING. PROGRAMMING. MANUAL tions of the plotter's graphics and interfacing instructions. It begins. Hewlett-Packard's sheet feed 7550A plotter is an innovative graph- The HP 7550A eliminates manual paper handling of A3/B- and. HP Gear - On paper input assembly - Driven by paper feed motor HP 7550A graphics plotter interfacing and programming manual. Hewlett Packard 7550A/7550B Graphics Plotter. Plotting method . . . . . . . . . . 8-pen, flat bed, auto-pen changing, auto capping. Plotting speed. 00087-90109 HP-87 Plotter ROM Owners Manual. 6/82. 82937-90004 Instr Sheet HP-IB Interface (German). 7/80. 00087-90120 HP-87 GRAPHICS Pocket Guide.HP 7550A Vintage Desktop Graphics Plotter with manual and cable for parts, turns on, no other testing done, sku 2465. See details - HP 7550A Vintage Desktop