This is configured using the db_create_file_dest parameter:

Is the work getting completed in one or multiple phases?

Each pixel is blanked then strobed, two or more times in each frame time; the relative times between blanking and strobing, at least four different time periods, are varied to give the desired greyscale levels.

A high flash rate is assured by including astigmatic illumination to maximize beam current, and leveraged co-planar blanking and shaping deflection to minimize drive voltages.

No pattern data is written to the mask for the flashes in the scan that are scanned after the pair of blank pixels.

The upper part of the screen is cleared white and several lines of text are printed on it.

The invention has tow main embodiments, a first called column switching and blanking and a second embodiment called doubling.