Model Compatibility: Fits printers with model numbers 1800, 2200, 1801, 2201, 2010, and 2011 as specified in the title.
Part Number Match: Replaces MK-4105 drum unit as indicated by the exact part number MK-4105 stated in the title.
Maintenance Kit Inclusion: Functions as the MK4105 maintenance kit referenced in the title for routine servicing of compatible devices.
Functional Purpose: Restores drum unit functionality in compatible models without altering design or operational specifications.
Usage Scope: Intended solely for use as a replacement drum unit in the listed printer models and maintenance kit context.