Sheet and envelope feed apparatus for a printer and associated methods

摘要

Sheet and envelope feeder apparatus for a printer comprising first and second trays for respective stacks of sheets of paper and first and second drive rollers for feeding sheets of paper from the respective trays to the printer where a printing operation is effected on at least one of the faces of the sheets of paper. A third tray is provided for envelopes and a third drive roller for feeding envelopes from the third tray to the printer. The first and second drive rollers are selectively driven by a first drive motor to feed the sheets of paper. A conveyor receives the sheets of paper and the envelopes in successive groups from the printer and delivers the printed sheets of paper and envelopes to a stacking station at which the printed sheets of paper and printed envelopes are stacked one after the other successively in the order printed and wherein the printed face of each sheet of paper faces away from the next successive sheet of paper whereby the sheets of paper for each item of correspondence are collated in sequential order of printing. A second motor selectively drives the third drive roller or the conveyor.