Seiko I Infotech LP-1020 User Manual page 158

BOTTLE MAINT.
<Parameter (choice input method)>
AUTO
MANUAL
6-6
In order to prevent the waste toner from accumulating unevenly in the
waste toner bottle, this device provides the maintenance function that
taps the waste toner bottle to level the waste toner when the specified
amount of print is executed.
Set whether this maintenance starts automatically or a message to prompt
you to perform maintenance is displayed. In the latter case, the
maintenance does not start unless the key is pressed.
The maintenance of waste toner bottle starts automatically.
The maintenance of waste toner bottle is started manually.
: Default value