What does the "A" and "B" on top of a printed nozzle check indicate?
Each color uses 360 nozzles that are divided into two rows of 180 nozzles. When printing a nozzle check, each row produces its own nozzle check indicated by the "A" and "B" on top. This allows you to identify which row of nozzles is clogged and needs cleaning.
Published: Sep 19, 2008 Was this helpful? Thank you for the feedback!