Cleaning the Machine8-16Print Head WindowContinuing to use this machine with a dirty print head window can cause printquality problems.Clearing the Print Head Window1 With the main screen displayed, press the key to display the PRINTERMODE screen.2 Press the key to select T/C CHANGE and then press the ENTER key.3 Press the key to select P/H CLEAN MODE and then press the ENTERkey." It is not possible to exit P/H CLEAN MODE before the operation isfinished (even if the STOP/R ESET key is pressed).If the machine has incorrectly been switched to P/H CLEANMODE, perform steps 4 through 7, then steps 11 through 16 (skip-ping steps 8 through 10) to exit P/H CLEAN MODE mode.4 Open the front cover." Before opening the frontcover, open Tray 1 if it isnot already open.