Chapter 3 Advanced Product Use Self-test Mode You can use the self-test to check the items below. • Control circuit function • Printer mechanism function • Print quality • Control ROM version • Memory switch setting function Perform the procedures below. Printing to Roll Paper 1 Turn off the product and confirm that all covers are closed. 2 While holding down Button 2, press the (POWER) button to turn on the product. This starts test printing on the roll paper. ON + 3 3 Press Button 2 (Feed) again. This restarts test printing. Printing is complete when “*** completed ***” is printed. 55