For B (lines are missing or horizontal white streaks are present) in the pattern C or pattern D, orin both patterns:The cleaning is required. Select Also B, then select Yes on the cleaning confirmation screen.The printer starts cleaning the print head.Cleaning the Print HeadIf the pattern D or any color in the pattern C is not printed:(Example: Magenta pattern is not printed)The cleaning is required. Select Also B, then select Yes on the cleaning confirmation screen.The printer starts cleaning the print head.Cleaning the Print Head117