There is provided in one embodiment a doctor blade alignment device for aligning a doctor blade in a toner hopper of a printer cartridge. The device has an alignment assembly portion with a doctor blade contact portion having at least two magnet elements and at least two blade adjustment elements. The device further has an adjustable setting blade attached to the alignment assembly portion and substantially coextensive in length with the alignment assembly portion. The device further has a base portion attached to the adjustable setting blade and substantially coextensive in length with the adjustable setting blade. The alignment assembly portion and the adjustable setting blade calibrate the doctor blade alignment device to obtain a doctor blade alignment setting for aligning a doctor blade in a toner hopper of a printer cartridge.