... z, W, X, Y, Z, 9* key: special symbol0 key:space, 0# key: switch between letters and numbersDel: delete the last ... Printer. When GPRS Printer stand by, press Menu key, you can enter into sub-menu.MenuGPRS APNGPRS ... .1. In the sub-menu, press Menu key once2. Press #key to capital letters. (ABC On the LCD, ... is okThen, press 8key 1 time, 8 is okThen, press *, then menu key, get the symbol of.Then, press ...