During the printing of a 2D plot or 3D part it is of utmost importance to keep the nozzles of the printheads as clean
as possible. One of the techniques used to clean the printheads while printing is by means of the use of a web
wipe. A web wipe consists of a mechanism holding a cleaning roll of cloth that is pressed against the printheads
by a rubber blade while the carriage is passing on along. The wiper is able to move up (engage) and down
(disengage) the rubber blade so as to wipe or not wipe the printheads as the carriage passes on. After a wipe, the
cleaning roll is advanced in order to have clean cloth on top of the rubber blade prepared for the next wiping. To
perform a proper wiping and cleaning of the printheads, the wiper engage height must be previously calibrated so
that the rubber blade is having the required interference against the printhead to ensure the proper wiping
pressure of the cloth on the nozzle plate. Ensuring the wiper engage height is correct while printing is critical to
ensure the best performance of the printheads and the quality of the printed image or part.
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INC, HP, "WIPER HEIGHT ADJUSTMENT AUTOMATIC CHECK", Technical Disclosure Commons, (July 27, 2018)