Patent ID: 7035566

Claim:
An image forming machine with a unit having at least an image carrier device, for forming a toner image by electrophotographic method, mounted detachably thereto, the image carrier device having an electrical conductive shaft, the image forming machine comprising: base frames with guide grooves for guiding both end parts of the electrically conductive shaft of said image carrier device to position the unit in place; a contact member disposed at a position for contacting the conductive shaft of the unit when the unit is positioned in place, and a charge eliminating member for eliminating an electric charge accumulated on the image carrier device by way of the conductive shaft provided at a position upstream from said position for contacting the conductive shaft, wherein said charge eliminating member is a brush composed of bundled electrically conductive thin strings or threads, and wherein said electrically conductive thin strings or threads have a volume specific resistance of 1˜0.01 Ω•cm.