Abstract: A copier is disclosed as having a sorter positioned on top of the copier housing for easy access to an operator. The path of movement of processed copy sheets is repeatedly folded in order to present to the operator collated copy sets or stacks for easy observation of sorting and removal. The sheets exit the copier processing station in a horizontal plane, are turned 90.degree. while still in the plane, are transported upwardly in a vertical plane, and deposited in sorter trays toward the operator.

Abstract: To add toner to the toner hopper of an electrostatic reproduction machine without contaminating either the operator or the interior of the machine, an improved toner bottle and receiver coact so as to eliminate or minimize the danger of generating toner clouds or spilling toner during the loading operation. The bottle has a body and a cap rotatably mounted on one end of the body. The body has a plurality of locating and locking lugs which coact with corresponding channels in the receiver so that the bottle can be inserted into the receiver in only one position. When a closed toner bottle is inserted into the receiver, a lip serves both to position the cap relative to an inlet opening of the receiver, and to retain the cap in this position as the body is rotated so that openings in the body and cap are aligned with the inlet opening; a suitable mechanism stops the body when the three openings are aligned.