[Drum Memory Recovery Mode]
Overview
Press [Start] to pre-rotate the photoreceptor for 3 minute.
Perform this function when density unevenness caused by image patterns occurs.
Example of poor image
Setting Items
Screen access
Touch panel - [MACHINE] - [Adjustment] - [Drum Memory Recovery Mode]
in the upper-right of a page, it turns into 
and is registered as a bookmark.