Abstract: A paper sensor comprises a moveable grill The paper sensor is arranged for location within an air flow in a printer, and comprises the grill as a paper-engaging body provided with a plurality of through holes such that air can flow freely through the grill, The grill is operable to move between a first position and a second position. The paper sensor is arranged so that in use a sheet of paper introduced adjacent the grill engages the grill and reduces the air flow through one or more of the holes in the grill, creating a pressure differential across the grill, that pressure differential causing the grill to move from the first position to the second position, and thereby indicating the presence of paper. A printer comprising a paper sensor, and a method of sensing paper is also disclosed.

Abstract: A toner development unit for an image forming apparatus including a roller and an electrode adjacent thereto, the electrode having an arcuate extent adjacent to a portion of a surface of the roller to define a toner application gap therebetween, the roller being adapted to rotate in a given direction wherein the gap diverges in the direction of rotation of the roller relative to the electrode.

Abstract: A blanket fastening assembly for securing an image transfer blanket to an intermediate transfer member drum of an electrostatic printer comprising a resilient biasing arrangement adapted to be connected to an end of the blanket to act in use so as to resiliently tension the blanket, with at least one end portion of the blanket being held in use by a resilient biasing clamping member which is adapted to move during the operational life of the drum so as to accommodate stretching of the blanket whilst maintaining tension in the blanket.