Canon PIXMA MG6821 User Manual - Page 504

Maintenance tab Description The Maintenance tab allows you to perform printer maintenance or change the settings of the printer. Cleaning Performs print head cleaning. Print head cleaning removes any blockage in the print head nozzles. Perform cleaning when printing becomes faint, or a specific color fails to print, even though all ink levels are sufficiently high. Deep Cleaning Performs deep cleaning. Perform deep cleaning when two cleaning attempts do not resolve the print head problem. Note • Deep Cleaning consumes a larger amount of ink than Cleaning. Cleaning the print heads frequently will rapidly deplete your printer's ink supply. Therefore, perform cleaning only when necessary. Ink Group When you click Cleaning or Deep Cleaning, the Ink Group window is displayed. Selects the ink group that you want to clean the print head for. Click Initial Check Items to display the items that you need to check before you execute cleaning or deep cleaning. Print Head Alignment Print head alignment corrects the installation positions of the print head and improves deviated colors and lines. 504