Model Compatibility: Fits printers with model numbers 1800, 2200, 1801, 2201, 2010, and 2011 as specified in the title.
Part Number Match: Replacement drum unit designated MK-4105, matching the part number MK4105 shown in the title.
Functional Purpose: Serves as a maintenance kit drum unit to restore drum functionality in compatible devices.
Installation Scope: Designed for use as a direct replacement component within the maintenance procedures of the listed printer models.
Usage Context: Intended for maintenance and functional replacement of the drum unit in the specified printer series.