The button combinations below perform additional functions to control your printer. Paper must be loaded in the printer for all these operations.
Cleaning N N N + POWER switch
Checks the paper length and performs a printer self test. See “Testing the Printer” in Chapter 1 for more information.
Cleaning O + Cleaning N N N + POWER switch
When connected to a PC, prints a page containing a hexadecimal representation (hex dump) of the data sent to the printer for troubleshooting use; see Chapter 7. Continue holding down Cleaning O and Cleaning N N N for a few seconds after turning on the printer. Then send a print job. To exit hex dump mode, press Load/Eject to clear the paper path. Then turn off the printer.
Cleaning O + POWER switch
Prints a demonstration page of the printer’s fonts and colors. Continue holding down the Cleaning O button for a few seconds after turning on the printer. To exit demonstration mode, wait until the printer is done printing, and then turn it off.
Load/Eject + POWER switch
Enters the printer’s Default setting mode and prints an instruction page. Continue holding down the Load/Eject button for a few seconds after turning on the printer. To exit Default setting mode, turn off the printer. See page