Chapter 1 Product Overview Maintenance Counter With this function, printer information, such as the number of lines printed, the number of autocuts, and printer operation time after the printer starts working, is automatically stored in NV memory. • You can also check the head running length and number of times of autocutting with the self-test (see "Self-test Mode" on page 70 ). • The maintenance counter values are automatically saved in the NV memory usually every two minutes (up to four minutes). However, the values are not saved when the printer is in power saving mode or when it is turned off without the use of the power switch. 1 25 Web contents The region for Web servers.