Chapter 1 Product Overview Auto Nozzle Check System This printer is equipped with the automatic nozzle check function. Depending on required print quality, you can change the following settings. • Switch On or Off the nozzle check function • How often to run the nozzle check • Threshold for the nozzle check • Whether to run a cleaning after the check In addition to the above settings, if nozzle clogging is not cleared by the cleaning, the printer carries out supplemental printing using nozzles adjacent to the clogged nozzles. By using these functions, you can prevent sharp decline in the print quality and barcode quality.
Auto Nozzle Check Settings The auto nozzle check is run at the following times. • When the printer is turned on • When the front cover is closed after a paper jam • Just before running a regularly scheduled cleaning ( "Periodic Auto Cleaning" on page 30 ) If “Nozzle check settings” is set to “On”, auto nozzle check is run at the time of the following cases. • When the number of printouts has reached the number specified as the interval of the nozzle check. If “Cleaning After Nozzle Check” has been set to “On”, and the result of nozzle check exceeds the specified threshold, a head cleaning is run automatically to clear the nozzle clogging. After the cleaning, the nozzle check is run again.
If the result of the check still exceeds the threshold, auto cleaning is also run again. c IMPORTANT • This function does not completely prevent nozzle clogging. The printer cannot perfectly detect missing dots and skewed ink drops on printouts. • To prevent misreading of characters that are partially missing due to nozzle clogging, it is recom- mended to use the printer with its default nozzle check settings. For information about the default settings, see [Maintenance] - [Nozzle check settings] in "Operation Panel Settings" on page 232 . • If extremely high reliability is required for printouts, it is recommended to use fonts whose height is 3-dots or more.
• The cleaning cleans the entire print head. It does not clean the print head partially for cleaning only the clogged nozzles. • A small amount of ink is consumed for the auto nozzle check system. • The print head cleaning is run automatically after the nozzle check when set to do so. Ink is con- sumed for the head cleaning. 26