190 MaintenancePrint 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 arrow key to display the PRINTERMODE screen.2 Press the down arrow key to select T/C CHANGE and then press the Enterkey.3 Press the down arrow key to select P/H CLEAN MODE and then press theEnter key." It is not possible to exit P/H CLEAN MODE before the operation is fin-ished (even if the Stop/Reset key is pressed).If the machine has incorrectly been switched to P/H CLEAN MODE,perform steps 4 through 7, then steps 11 through 16 (skipping steps 8through 10) to exit P/H CLEAN MODE mode.4 Open the front cover." Before opening the frontcover, open Tray 1 if it is notalready open.
