Abstract: A computer printer tray system comprising a paper input tray and a paper output tray, neither of which is required to have any moving parts. The output tray is supported in part by the input tray and both trays of the system are semi-permanently cantilever supported from the front of the printer so that neither tray has to be removed when loading an unprinted stack of cut sheet paper or removing printed paper. The output tray has a first portion which is inclined from a second portion by about 10.degree. to correct paper curl caused by a wet printing process.

Abstract: A sheet feeder for a computer driven printer moves a sheet of paper from a supply stack to a holding station at which movement of the sheet of paper is temporarily stopped. Any skew present in the leading edge of the paper is automatically removed by engagement of the leading edge with a pair of spaced bights between opposed rollers before the paper progresses from the holding station to a printing station. One sheet of paper can temporarily remain in the holding station as a previously fed sheet of paper is simultaneously being passed from the holding station to the printing station or it can pass essentially continuously through the holding station on its way to the printing station. Separate motors for driving paper feed rollers and paper drive rollers permit implementation of different algorithms to accomplish this objective.

Abstract: A computer printer tray system comprising a paper input tray and a paper output tray, neither of which is required to have any moving parts. The output tray is supported in part by the input tray and both trays of the system are semi-permanently cantilever supported from the front of the printer so that neither tray has to be removed when loading an unprinted stack of cut sheet paper or removing printed paper. The output tray has a first portion which is inclined from a second portion by about 10.degree. to correct paper curl caused by a wet printing process.