A developer for developing electrostatic images, comprising: at least, 100 wt. parts of a negatively chargeable magnetic toner having a volume-average particle size of 5 to 30 microns; 0.1 to 3 wt. parts of positively chargeable resin particles having an average particle size of 0.1 to 1.0 micron; and...http://www.google.com.au/patents/US5141833?utm_source=gb-gplus-sharePatent US5141833 - One component developer for developing electrostatic image and image forming method
