An image forming apparatus for forming images on recording media is adaptable to receiving a process cartridge detachably mounted thereto. The process cartridge has a frame, an image bearing member and a process unit which acts on the image bearing member. The image forming apparatus includes a mounting...http://www.google.com.au/patents/US5565961?utm_source=gb-gplus-sharePatent US5565961 - Process cartridge and image forming apparatus adapted for the mounting of the same thereto with an elastic member disposed therebetween