Here is disclosed a process of loading the high efficiency filter in the most ergonomic possible manner and using the
existing user access direction (main door of print chamber) to further save space allocated for access. A handle is
pressed after loading the filter to activate the expansion of a system which pushes the filter upwards, hence closing
its seal against the filter housing. The system works to take a horizontal force from the user and express it as a
purely vertical force to the filter. This maintains filter positioning and minimizes risk of damaging the seal.
To raise and seal the filter, a handle must be pressed into the filter housing. Only when this is done is it possible to
close the filter housing door, hence functioning as a mechanical fail-safe of the system.
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INC, HP, "PROCESS TO LOAD A FILTER WITH RELIABLE SEALING", Technical Disclosure Commons, (February 07, 2020)