omitted: Print a self-test page with whole printer information.
PATTERN: Print a pattern to check the status of print head heat line.
ETHERNET: Print a self-test page with Ethernet settings.
WLAN: Print a self-test page with Wi-Fi settings.
RS232: Print a self-test page with RS-232 settings.
SYSTEM: Print a self-test page with printer settings.
Z: Print a self-test page with emulated language settings.