For (B) (lines are missing or horizontal white streaks are present) in (1) or (2), or in both (1) and(2):(1) Select Also B and press the OK button.Clean the Print Head. The cleaning confirmation screen will appear.(2) Select Yes and press the OK button.The machine starts cleaning the Print Head.See Cleaning the Print Head.Page topPage 103 of 949 pagesExamining the Nozzle Check Pattern