An image formation cartridge employed to a printer includes a movable image formation sheet supported between a pair of rotatable shafts, a rotatable ink applying roller unit contacting the image formation sheet and an ink feeding unit for feeding ink from an ink storing container to the ink applying...http://www.google.de/patents/US4803502?utm_source=gb-gplus-sharePatent US4803502 - Image formation cartridge and image forming apparatus using the same
