Epson ColorWorks C3400-LT Technical Reference Guide - Page 163

Chapter 7 Maintenance Head Cleaning Head cleaning is a function for cleaning the surface of the print head, in order to maintain the print quality. Perform head cleaning if the printout is becoming faint or if there are gaps. The auto nozzle check function is installed to the printer, and the head is automatically cleaned in the normal operation. However, when Post-Printing Verification Settings, the print result may not be clear or print in the abnormal colors depending on some settings due to the clogging of the print head. Clean the head in that case. Use [maintenance and utilities] function on the printer driver to run head cleaning.  Make settings with [Post-Printing Verification Settings] on [Maintenance And Utilities] tab when dot is missing. (See "Post-Printing Verification Settings" on page 99)  Ink is consumed in the head cleaning. By performing a nozzle check before performing head cleaning, you can verify if the nozzle is clogged, and prevent extra ink from being consumed in the head cleaning. For details on nozzle check, see "Nozzle Check" on page 165. Manual Head Cleaning The printer checks the nozzles, and run an manual head cleaning automatically if clogging occurs. The ink is used for head cleaning, so if the ink is low, the ink may run out during the cleaning. Follow the steps below to manual head cleaning. 1 Turn the power on. 2 Display the window on the printer driver. (See "How to Use the Printer Driver" on page 65 for how to display the driver window.) 3 Click [Manual Head Cleaning] on [Maintenance And Utilities] tab. The printer nozzle is checked and head is automatically cleaned when it is clogged. The cleaning repeats 5 times at the maximum. 4 Execute a nozzle check and check the cleaning result. 7 163