This manual is a program manual for GP-3120TN, GP-9035T, GP-3120TL, GP-9034T, GP-3150TIN, GP-9026T, GP-1524D, GP-9025T, GP-1625D, GP-1125T, GP-1225D, GP-1124T, GP-1124D GP-1225T, which introduces the system setup, label formatting, status polling, file management and BASIC commands and functions of the series printers.