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US 6,450,711 B1Granted
High speed printer with dual alternate sheet inverters
AssigneeXerox Corporation
InventorBrian R. Conrow
Life of this patent
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AssigneeXerox Corporation
InventorBrian R. Conrow
Estimating the term…
In high speed reproduction apparatus in which closely spaced printed sheets are sequentially fed downstream in a sheet path at a process velocity, a dual inverter system of two independent but cooperative sheet inverters is sheet control gated to receive alternate sheets from the sheet path for inversion in the alternate independent sheet inverters. These dual alternate sheet inverters may advantageously operate at substantially the same sheet velocity as the connecting sheet path, instead of the much higher speed and acceleration/deceleration typical of conventional single inverter systems. Yet the original collated sequential sheet order is maintained. The two independent but cooperative alternate sheet inverters may be operatively connected in series spaced along the sheet path to be alternatingly fed alternate sheets from the sheet path by separate gates and to return sheets to the same sheet path at different locations, or, connected in parallel with the sheet path by a single decision gate.
In a high speed reproduction apparatus with a sheet path in which closely sequentially spaced apart printed sheets are fed downstream in said sheet path in an original sheet sequence, said sheet path having an operative connection to a sheet inverter system into which said closely sequentially spaced apart printed sheets in said sheet path are fed to be inverted, the improvement wherein:
In a high speed reproduction apparatus with a sheet path in which closely sequentially spaced apart printed sheets are fed downstream in said sheet path in an original sheet sequence, said sheet path having an operative connection to a sheet inverter system into which said closely sequentially spaced apart printed sheets in said sheet path are fed to be inverted, the improvement wherein:
In a high speed reproduction apparatus with a sheet path in which closely sequentially spaced apart printed sheets are fed downstream in said sheet path in an original sheet sequence, said sheet path having an operative connection to a sheet inverter system into which said closely sequentially spaced apart printed sheets in said sheet path are fed to be inverted, the improvement wherein:
A single high speed print engine with a sheet output path in which closely spaced apart printed sheets printed by single high speed print engine are sequentially fed downstream at high speed in said sheet output path in a desired sequence from said single high speed print engine,
A single high speed print engine with a sheet output path in which closely spaced apart printed sheets printed by single high speed print engine are sequentially fed downstream at high speed in said sheet output path in a desired sequence from said single high speed print engine,
Dependencies are inferred from the claim text.