The new smaller version color printer of the popular HL4040 is the HL3040. This printer uses the TN230 and TN235 type cartrdiges. Because of its low price, many starter cartridges come back the empty cartridges. To be able to use a starter cartridge one essential element is required: the reset lever. This reset lever is needed to convert the starter cartridge into an normal or high capacity TN235 cartridge. The set contains a plastic reset lever and a metail spring in bags of 100pcs each.