Epson ColorWorks C3400-LT Technical Reference Guide - Page 165

Chapter 7 Maintenance Nozzle Check If the nozzle of the print head becomes clogged, the printout may be faint or a different color than usual even when there is ink. This product has an automatic nozzle check function, and normally, print head cleaning is automatically performed. However, the nozzle may become clogged depending on the Post-Printing Verification settings (p.99). When a nozzle check is performed, a pattern is printed, and by looking at the pattern, it is possible to verify whether or not the nozzle is clogged. Before performing a nozzle check, be sure to load the label roll paper that was shipped with the product. If paper other than the label roll paper that was shipped with the product is loaded, the nozzle check cannot be performed. For details on how to replace the paper, see "Replacing the Paper" on page 139. Follow the steps below to check nozzles. 1 Turn the power on. 2 Set the die-cut label, receipt or continuous label which length is 90 mm or more. 3 Display the window on the printer driver. (See "How to Use the Printer Driver" on page 65 for how to display the driver window.) 4 Click [Media position detection] on [Maintenance And Utilities] tab and sets the media position detection based on the loaded paper. 5 Click [Nozzle Check]. 6 Click [Print]. 7 Check the printed nozzle pattern. Execute Manual Head Cleaning when it is clogged. 7 165