... , 23 key:d, e, f, D, E, F, 34 key:g, h, i, G, H, I, 45 key:j, k, l, J, K, L ... month, D is date, Y is yearTime: the form is H-M, H is hour, M is minute. 24 hoursPrint Speed ... : H is quick, M is normal, L is slow. M is ... code marked on GSM/GPRS module, can not modifyProduct Model: G-FM300Note Print 5-1-1New order arrived, GPRS Printer will ...